Permobil Explorer Mini Service Manual

a stand-alone document, but rather a complement to the User’s Manual. It is intended for technical personnel who maintain and repair Permobil power wheelchairs. It is important that anyone who performs maintenance and repairs described in this manual reads and understands the content of this manual so that the work is performed professionally. This Service Manual is not intended for end users or their caregivers. They must contact their local Permobil dealer for any maintenance or repair needs. Always state the chassis number when contacting Permobil to ensure that the correct information is provided.

Permobil Inc. 300 Duke Drive Lebanon, TN 37090 USA Tel.: 800.736.0925 Fax: 800.231.3256 E-mail: [email protected] Web: www.permobilus.com Head office of the Permobil group Permobil AB Box 120 861 23 Timrå Sweden Tel.: +46 60 59 59 00 Fax: +46 60 57 52 50 E-mail: [email protected] Web: www.permobil.com

1.1 Warranty .................................................................................................................................................9 1.2 Technical support ......................................................................................................................................9 1.3 Spare parts and accessories........................................................................................................................9 1.4 Ordering documentation ............................................................................................................................9 1.5 Scrapping and recycling.............................................................................................................................9 2 Safety instructions.........................................................................................................................................10 2.1 Descriptions of admonitions ......................................................................................................................10 2.2 Warnings and precautions........................................................................................................................10 3 Specifications................................................................................................................................................12 3.1 Overview ...............................................................................................................................................12 3.2 Wiring diagram ......................................................................................................................................13 3.2.1 Base module ...........................................................................................................................................13 3.2.2 Batteries.................................................................................................................................................13 3.3 Serial number stickers ..............................................................................................................................14 3.3.1 Serial number on the base module .............................................................................................................14 3.3.2 Serial number sticker on the nVR2 power module .........................................................................................14 3.3.3 Serial number sticker on the control panel ...................................................................................................14 4 Repairs ..........................................................................................................................................................15 4.1 Cushion .................................................................................................................................................15 4.1.1 Removing the cushion...............................................................................................................................15 4.1.2 Attaching the cushion...............................................................................................................................15 4.2 Tray top .................................................................................................................................................16 4.2.1 Removing the tray top ..............................................................................................................................16 4.3 Attaching the tray top...............................................................................................................................16 4.4 Seat.......................................................................................................................................................17 4.4.1 Removing the seat....................................................................................................................................17 4.4.2 Installing the seat.....................................................................................................................................18 4.5 Table and backrest unit.............................................................................................................................20 4.5.1 Removing the table and backrest unit..........................................................................................................20 4.5.2 Installing the table and backrest unit ...........................................................................................................22 4.6 Base module ...........................................................................................................................................25 4.6.1 Top cover ...............................................................................................................................................25 4.6.2 Bottom cover...........................................................................................................................................33 4.7 Drive wheels ...........................................................................................................................................40 4.7.1 Removing the drive wheels........................................................................................................................40 4.7.2 Installing the drive wheels .........................................................................................................................41 4.8 Caster wheels..........................................................................................................................................42 4.8.1 Removing the caster wheels.......................................................................................................................42 4.8.2 Installing the caster wheels ........................................................................................................................43 4.9 Control panel..........................................................................................................................................44 4.9.1 Removing the control panel .......................................................................................................................44 4.9.2 Installing the control panel ........................................................................................................................47 4.10 Batteries.................................................................................................................................................51 4.10.1 Charging the batteries..............................................................................................................................51 4.10.2 Removing the batteries .............................................................................................................................53 4.10.3 Installing the batteries...............................................................................................................................55 4.11 Circuit breakers.......................................................................................................................................57 4.11.1 Electrical fault .........................................................................................................................................57 4.11.2 Removing the main circuit breaker .............................................................................................................57 4.11.3 Installing the main circuit breaker...............................................................................................................59 4.11.4 Removing the start button..........................................................................................................................61 4.11.5 Installing the start button ...........................................................................................................................62 4.12 Drive unit ...............................................................................................................................................63 4.12.1 Removing the drive units ...........................................................................................................................63 4.12.2 Installing the drive units ............................................................................................................................65

4.13.1 Removing the nVR2 power module.............................................................................................................67 4.13.2 Installing the nVR2 power module ..............................................................................................................68 5 Adjustments...................................................................................................................................................69 5.1 Seat.......................................................................................................................................................69 5.1.1 Adjusting the seat height...........................................................................................................................69 5.1.2 Table and backrest unit.............................................................................................................................70 5.2 Locking and unlocking the Explorer Mini.....................................................................................................71 5.2.1 Locking ..................................................................................................................................................71 5.2.2 Unlocking...............................................................................................................................................72 6 Troubleshooting ............................................................................................................................................73 6.1 Troubleshooting guide..............................................................................................................................73 6.2 Control panel diagnostics .........................................................................................................................75 6.2.1 LEDs on the battery indicator .....................................................................................................................75 6.2.2 LEDs on the maximum speed indicator ........................................................................................................75 6.2.3 Rapidly flashing, one to ten LEDs................................................................................................................75 6.2.4 Example of error messages and remedies....................................................................................................76 6.2.5 Repairing defective units...........................................................................................................................76 Index..............................................................................................................................................................77

1 Important information All information, pictures, illustrations and specifications are based upon the product information available at the time this manual was released. Pictures and illustrations used in this manual are representative examples and not intended to be exact depictions of the various parts of the wheelchair. We reserve the right to make changes to the product without prior notice. If you are visually impaired, this document can be downloaded at www. permobil.com. Use the magnifying tool in your PDF reader to achieve desired text and picture size. It is also possible to obtain information concerning our products from our website: www.permobil.com. 1.1 Warranty Contact your dealer or Permobil Inc. USA for information about the warranty period for this product. Product Warranty Information sets forth the conditions of the warranty. For further information about applicable warranties, see https:// permobilus.com/support/warranties/. NOTICE Unapproved replacement of parts If any part is replaced without approval from Permobil, the wheelchair warranty will become void. Permobil accepts no liability for any loss that occurs as a result of a control system component being opened, adjusted or modified without permission. 1.2 Technical support In the event of technical problems, contact your dealer or call Permobil Inc. USA on 1-800-736-0925. Be prepared to provide the wheelchair serial number, located on the chassis, to ensure proper support. See 3.3 Serial number stickers, Page 14. 1.3 Spare parts and accessories Spare parts and accessories must be ordered through your dealer. The expected service life of this product is five years. 1.4 Ordering documentation Should you need another copy of this manual, one may be ordered from Permobil. Ask for the order number specified on the back cover. 1.5 Scrapping and recycling Contact Permobil for information about scrapping agreements in force. 9

2 Safety instructions 2.1 Descriptions of admonitions The following admonitions describing warnings, remarks and explanatory texts are used throughout this manual to draw attention to items of significant importance to safety: DANGER! Danger admonition Indicates a dangerous situation which, if not avoided, could result in death as well as serious damage to the product or other property. WARNING! Warning admonition Indicates a hazardous situation which, if not avoided, could result in serious injury or death as well as damage to the product or other property. CAUTION! Caution admonition Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury as well as damage to the product or other property. NOTICE Notice admonition Indicates an important but not hazardous situation which, if not avoided, could result in damage to the product or other property. Provides information about the conditions or circumstances under which the information given applies. 2.2 Warnings and precautions WARNING! Use supplied screws and recommended tightening torque Use the supplied screws and the tightening torques recommended in this service manual to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 10

CAUTION! Maintenance by a qualified service technician Only qualified service technicians should perform the maintenance and repair specified in this manual. Read all instructions carefully before proceeding. If any questions arise, contact Permobil for assistance. CAUTION! Do not use removable parts to lift or move Do not lift or move the wheelchair by any of its removable parts. Doing so could lead to personal injury and property damage, including damage to the wheelchair. CAUTION! Do a check after a collision In the event of a collision with a wall, door or other fixed object when operating the wheelchair, always make sure all parts of the wheelchair are undamaged before operating it again. Failure to do so could lead to personal injury. 11

3 Specifications 3.1 Overview Figure 1. Explorer Mini overview. A. Backrest (part of the table and backrest unit) B. Cushion C. Tray top D. Seat E. Caster wheel F. Drive wheel G. Joystick H. On/off button I. Table (part of the table and backrest unit) J. Column K. Base module L. Serial number M. Start button N. Main circuit breaker 12

3.2 Wiring diagram 3.2.1 Base module Figure 2. Wiring diagram for the electronics in the base module. A. Battery saving module B. Drive unit, left C. nVR2 power module D. Contact to the left drive unit E. 24 V input F. Contact to the right drive unit G. Contact to the control panel H. Main circuit breaker I. Drive unit, right J. Batteries K. Start button 3.2.2 Batteries Figure 3. Wiring diagram for the batteries and position of the wiring diagram for the batteries. The wiring diagram for the batteries is positioned at the bottom cover of the base module. - + - + A B C D E F G H I J K 13

3.3 Serial number stickers 3.3.1 Serial number on the base module Figure 4. Position of the serial number sticker. Figure 5. Information on the serial number sticker. The serial number sticker is attached between the caster wheels at the base module. Information on the serial number sticker: A. Made in (country of final assembly) by (address to site of final assembly). B. Federal Law (United States) restricts this device to sale by or on the order of a healthcare provider. C. Maximum user weight. D. Model name of the product. E. Serial number. F. EAN code. G. Device identifier (01), Date of assembly (11), Serial number (21). 3.3.2 Serial number sticker on the nVR2 power module Figure 6. Position of the serial number sticker on the nVR2 power module. The serial number sticker is attached at the back of the nVR2 power module, facing the bottom of the base module. It is only visible when the nVR2 power module is removed from the Explorer Mini. 3.3.3 Serial number sticker on the control panel Figure 7. Position of the serial number sticker on the control panel. The serial number sticker is attached at the bottom of the control panel. It is only visible when the control panel is removed from the Explorer Mini. 14

4 Repairs CAUTION! Maintenance by a qualified service technician Only qualified service technicians should perform the maintenance and repair specified in this manual. Read all instructions carefully before proceeding. If any questions arise, contact Permobil for assistance. WARNING! Use supplied screws and recommended tightening torque Use the supplied screws and the tightening torques recommended in this service manual to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. NOTICE Replace worn screw Worn screw must be replaced. 4.1 Cushion 4.1.1 Removing the cushion The wheelchair has a removable cushion. There are four screws, attached to the cushion, that hold the cushion in place. Figure 8. Remove the screws from the attachment points on the backrest. 1. Remove the four screws from the attachment points on the backrest. 2. Remove the cushion from the backrest. 4.1.2 Attaching the cushion Figure 9. Attach the cushion with the screws in the attachment points on the backrest. 1. Put the cushion in place on the backrest. 2. Put the four screws into the attachment points on the backrest and tighten them by hand. 15

4.2 Tray top 4.2.1 Removing the tray top Figure 10. Push the tray top upward. Put your fingers in the hole that is positioned at the bottom of the table. Push the tray top upward and lift off the tray top. NOTICE Do not drive the wheelchair while the tray top is removed Do not let the child drive the Explorer Mini while the tray top is removed. The child may press the maximum speed buttons and affect the speed of the wheelchair by mistake. 4.3 Attaching the tray top Figure 11. Put the tray top in place. Hold the tray top with its metal inserts facing downward. Put the tray top on the table. 16

4.4 Seat 4.4.1 Removing the seat An adult or health-care provider must decide if seat removal is applicable for the child, taking into consideration his or her age and capacity. The center of gravity is affected when the seat is removed. The table and backrest unit must be in the highest position before you can remove the seat. Otherwise there will not be enough space to remove the seat. 1. Put the table and backrest unit in its highest position. For instructions on how to adjust the height of the table and backrest, see 5.1.2.1 Adjusting the height of the table and backrest unit. Figure 12. Prepare removal of the seat. 2. Remove the tightening knob (A) from the column. 3. Pull out the plunger knob (B). Figure 13. Remove the seat from the column. 4. Push down the seat and slide it off the column. Figure 14. Put back the tightening knob. 5. Put back the tightening knob and tighten it by hand. 17

4.4.2 Installing the seat The center of gravity is affected when the seat is installed. The table and backrest unit must be in the highest position before you can install the seat. Otherwise there will not be enough space to install the seat. 1. Put the table and backrest unit in its highest position. For instructions on how to adjust the height of the table and backrest unit, see 5.1.2.1 Adjusting the height of the table and backrest unit. Figure 15. Remove the tightening knob from the column. 2. Remove the tightening knob from the column. Figure 16. Pull out the plunger knob (A) from the seat. 3. Pull out the plunger knob (A). Figure 17. Push the seat into the groove on the column. 4. Push the seat into the groove on the column. 5. Carefully move the seat up or down to a setting. 18

Figure 18. Release the plunger knob (A) and put back the tightening knob (B). 6. Release the plunger knob (A). A click signals that the plunger knob is locked. 7. Put back the tightening knob (B) and tighten it by hand. 19

4.5 Table and backrest unit 4.5.1 Removing the table and backrest unit Use a protective mat to prevent damage to the table and backrest unit and the surface. The following tools are necessary for this task: • Torque wrench. • Allen socket, 4 mm. • Screwdriver or pliers. Figure 19. Positions for the on/off button (A) and the main circuit breaker (B). 1. Put the Explorer Mini on a flat surface. 2. Press the on/off button (A) to turn off the power. 3. Turn off the main circuit breaker (B). Figure 20. Remove the tray top. 4. Put your fingers in the hole that is positioned at the bottom of the table. Push the tray top upward and lift off the tray top. 5. Make sure that the LEDs on the control panel are off. Figure 21. Remove the four plastic plugs from the screws. 6. Remove the four plastic plugs from the screws. Use a screwdriver or pliers to loosen the plastic plugs. 20

Figure 22. Remove the four screws and washers. 7. Remove the four screws and washers that attach the table to the bracket. Figure 23. Loosen the two screws. 8. Loosen the two screws from the key slots on the bracket. Do not remove the screws. They keep the table in place when the four screws and washers are removed from the table. Figure 24. Slide the table backward and lift it off the bracket. 9. Carefully slide the table backward and lift it off the bracket. The two screws are released from the key slots on the bracket when the table is lifted off. The two screws remain attached on the table. 21

4.5.2 Installing the table and backrest unit The following tools are necessary for this task: • Torque wrench. • Allen socket, 4 mm. • Screwdriver or pliers. 1. Put the Explorer Mini on a flat surface. Figure 25. Positions for the on/off button (A) and the main circuit breaker (B). 2. Press the on/off button (A) to turn off the power. 3. Turn off the main circuit breaker (B). Figure 26. The gap (d) between the screw and the plastic surface. 4. Make sure there is a gap (d) of 0.2″ between the screw and the plastic surface. 22

Figure 27. Put the table on the bracket. 5. Put the table on the bracket with both screws fitted into the wide sections of the two key slots. Figure 28. Push the table forward. Figure 29. Locking position for the screw. 6. Carefully push the table forward on the bracket until the screws are locked in their positions. 23

Figure 30. Attach the table to the bracket with the four screws and washers. 7. Attach the table to the bracket with the four screws and washers. Tightening torque: 3.5 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 31. Tighten the two screws. 8. Tighten the screws in the key slots of the bracket. Tightening torque: 3.5 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 32. Put the plastic plugs on the screws. 9. Put the four plastic plugs on the screws. Figure 33. Attach the tray top. 10.Hold the tray top with its metal inserts facing downward. Put the tray top on the table. 24

4.6 Base module Figure 34. Base module overview. A. Drive unit (one for each drive wheel) B. Battery saving module C. Batteries D. nVR2 power module 4.6.1 Top cover 4.6.1.1 Removing the top cover The following tools are necessary for this task: • Torque wrench. • Allen socket, 2.5 mm. • Allen socket, 4 mm. • Slotted screwdriver or pliers. 1. Put the Explorer Mini on a flat surface. Figure 35. Positions for the on/off button (A) and the main circuit breaker (B). 2. Press the on/off button (A) to turn off the power. 3. Turn off the main circuit breaker (B). 4. Put the table and backrest unit in its highest position. For instructions, see 5.1.2.1 Adjusting the height of the table and backrest unit. A B C D 25

Figure 36. Remove the screw from the cover on the UniTrack® at the front of the base module. 5. Remove the screw from the cover on the UniTrack® at the front of the base module. Figure 37. Fold the cover upward. Figure 38. Remove the cover. 6. Fold the cover upward and remove it. Figure 39. Remove the cover on the UniTrack® at the rear of the base module. 7. Remove the screw from the cover on the UniTrack® at the rear of the base module and remove the cover. If necessary, use a screwdriver or pliers to loosen the cover from the UniTrack®. 26

Figure 40. Remove the cable to the control panel from the UniTrack®. 8. Remove the cable to the control panel from the UniTrack®. 9. Pull up the contact to the control panel through the hole of the top cover until you reach its contact and disconnect the cable. Figure 41. Remove the four screws from the column assembly´s bracket on the UniTrack®. 10.Remove the four screws from the column assembly´s bracket on the UniTrack® and remove the column assembly from the base module. Use a protective mat to prevent damage to the table and backrest unit and the surface. Figure 42. Remove the two slide nuts. 11.Remove the two slide nuts from the grooves on the UniTrack®. If necessary, use a screwdriver to grip the holes in the slide nuts. Figure 43. Remove the four screws and the UniTrack®. 12.Remove the four screws from the UniTrack® and remove the UniTrack®. The two spacers that are attached at the bottom of the UniTrack® will also loosen when you remove the screws. 27

Figure 44. Positions of the six screws on the top cover. 13.Push back the cable to the nVR2 power module through the hole on the top cover. 14.Remove the six screws from the top cover. Figure 45. Remove the top cover. 15.Remove the top cover from the base module. 28

4.6.1.2 Installing the top cover The following tools are necessary for this task: • Torque wrench. • Allen socket, 2.5 mm. • Allen socket, 4 mm. • Slotted screwdriver or pliers. Figure 46. Put the top cover on the base module. 1. Put the top cover on the base module. Figure 47. Pull the cable from the nVR2 power module through the hole. 2. Pull the cable from the nVR2 power module through the hole at the front of the top cover. 29

Figure 48. Attach the top cover on the base module with the six screws. 3. Attach the top cover on the base module with the six screws. Tightening torque: 0.9 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. CAUTION! Risk of injury Make sure that the screw heads don´t protrude when the screws have been tightened. Figure 49. Attach the UniTrack® and spacers with the screws. 4. Attach the UniTrack® and the two spacers that are positioned at the bottom of the UniTrack® with the screws. Tightening torque: 7.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 50. Attach the cover on the UniTrack® at the rear of the base module. 5. Put the cover on the UniTrack® at the rear of the base module and attach it with the screw. Tightening torque: 2.1 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 30

Figure 51. Put the two slide nuts into the grooves of the UniTrack®. 6. Put the two slide nuts into the grooves of the UniTrack® at the front of the base module and push the slide nuts until they reach the cover on the UniTrack® at the rear of the base module. If necessary, use a screwdriver to grip the holes in the slide nuts. Figure 52. Put the cable into the groove of the column assembly´s bracket. 7. Put the cable to the control panel into the groove of the column assembly´s bracket. Figure 53. Attach the column assembly on the base module. 8. Put the column assembly on the base module and attach it with the four screws. Tightening torque: 7.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 31

Figure 54. Connect the cable. 9. Make sure that the cable to the control panel is kept in the groove under the column assembly´s bracket and that it isn´t pinched. 10.Connect the cable from the control panel to the contact of the nVR2 power module. 11.Push the contacts through the hole on the top cover and make sure that the contacts are hidden under the top cover. Figure 55. Attach the cover on the UniTrack® at the front of the base module. 12.Put the cable into the groove of the UniTrack® at the front of the base module and snap the cover in place. Figure 56. Attach the cover on the UniTrack® with the screw. 13.Attach the cover on the UniTrack® at the front of the base module with the screw. Tightening torque: 2.1 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. CAUTION! Risk of injury Make sure that the screw heads don´t protrude when the screws have been tightened. 32

4.6.2 Bottom cover 4.6.2.1 Removing the bottom cover The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 57. Disconnect the cable to the start button from the battery saving module. 2. Disconnect the cable to the battery saving module from the start button. Figure 58. Disconnect the cables to the main circuit breaker from the batteries. 3. Disconnect the cables to the main circuit breaker from the batteries. Figure 59. Put the base module upside down. 4. Put the base module upside down with its metal surface facing the floor. Make sure that the cable to the nVR2 power module, the cables to the main circuit breaker and the cable to the start button aren´t pinched by the metal chassis. 33

Figure 60. Remove the caster wheels assembly. 5. Remove the four screws from the caster wheels assembly and remove the caster wheels assembly. Figure 61. Bracket to the top cover. The bracket to the top cover, visible when the base module is in upright position, is also loosen. Figure 62. Remove the two rubber dampers. 6. Remove the two rubber dampers by hand. Figure 63. Remove the six screws from the bottom cover. 7. Remove the six screws that attach the bottom cover to the metal chassis. 34

Figure 64. Carefully lift the bottom cover and slide it off the metal chassis. 8. Carefully lift the bottom cover and slide it off the metal chassis. 35

4.6.2.2 Installing the bottom cover The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. Figure 65. Put the metal chassis upside down. 1. Put the metal chassis upside down on a flat surface. Make sure that the cable from the nVR2 power module isn´t pinched by the metal chassis. Figure 66. Put back the bottom cover. 2. Put back the bottom cover on the metal chassis by carefully sliding it over the bracket on the metal chassis. Make sure that the cable to the start button and the connector to the main circuit breaker aren´t pinched. 36

Figure 67. Attach the bottom cover to the metal chassis. 3. Attach the bottom cover to the metal chassis with the six screws. Tightening torque: 2.1 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. CAUTION! Risk of injury Make sure that the screw heads don´t protrude when the screws have been tightened. Figure 68. Attach the rubber dampers. 4. Attach the two rubber dampers and tighten them by hand. Figure 69. Put the caster wheels assembly and the bracket for the top cover in place. 5. Put the caster wheels assembly and the bracket to the top cover in place and clamp them with one of the four screws. Make sure that the holes of the bracket are aligned with the holes of the caster wheels assembly. 37

Figure 70. Attach the caster wheels assembly. 6. Attach the three screws and tighten all four screws to the caster wheels assembly. Tightening torque: 7.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 71. Put the base module in upright position. 7. Put the base module in upright position. Figure 72. Connect the cable to the battery saving module. 8. Connect the cable from the start button to the battery saving module. Figure 73. Connect the cables to the main circuit breaker. 9. Connect the cables from the batteries to the main circuit breaker. 38

10.Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 39

4.7 Drive wheels 4.7.1 Removing the drive wheels The following tools are necessary for this task: • Torque wrench. • Allen socket, 5 mm. Figure 74. Drive wheels. Each drive wheel is attached with three screws. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. 2. Remove the bottom cover. For instructions, see 4.6.2.1 Removing the bottom cover. Figure 75. Remove the three screws from each drive wheel. 3. Remove the three screws from each drive wheel and remove each drive wheel. 40

4.7.2 Installing the drive wheels The following tools are necessary for this task: • Torque wrench. • Allen socket, 5 mm. Figure 76. Attach each drive wheel with three screws. 1. For each drive wheel, put it onto the hub and attach it with the three screws. Tightening torque: 7.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 2. Install the bottom cover. For instructions, see 4.6.2.2 Installing the bottom cover. 3. Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 41

4.8 Caster wheels 4.8.1 Removing the caster wheels The following tools are necessary for this task: • Box-end wrench, 17 mm • Torque wrench. • Allen socket, 8 mm. Figure 77. Positions for the on/off button (A) and the main circuit breaker (B). 1. Press the on/off button (A) to turn off the power. 2. Turn off the main circuit breaker (B). 3. Adjust the table and backrest unit to its highest position. For instructions, see 5.1.2.1 Adjusting the height of the table and backrest unit. Figure 78. Tilt the Explorer Mini to access the caster wheels. 4. Tilt the Explorer Mini 90° and put it on the floor with the caster wheels accessible. Figure 79. Remove the caster wheels. 5. Rotate each caster wheel to access the nut and the screw on each caster wheel. 6. Remove the nut and the screw from each caster wheel. 42

4.8.2 Installing the caster wheels The following tools are necessary for this task: • Box-end wrench, 17 mm • Torque wrench. • Allen socket, 8 mm. 1. Adjust the table and backrest unit to its highest position. For instructions, see 5.1.2.1 Adjusting the height of the table and backrest unit. Figure 80. Tilt theExplorer Mini to access the positions for the caster wheels. 2. Tilt the Explorer Mini 90° and put it on the floor with the positions for the caster wheels accessible. Figure 81. Install the caster wheels. 3. Rotate each caster wheel to access the positions for the nut and the screw to each caster wheel. 4. Attach the nut and the screw to each caster wheel. Tightening torque: 17.7 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 43

4.9 Control panel 4.9.1 Removing the control panel The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. • Needle-nose pliers. 5. Remove the seat. For instructions, see 4.4.1 Removing the seat 6. Remove the table and backrest unit. For instructions, see 4.5.1 Removing the table and backrest unit. 7. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 82. Column and control panel, adjusted to its lowest position, when the seat, table and backrest unit and base module are removed. 8. Adjust the column to its lowest setting. For instructions, see 5.1.2.1 Adjusting the height of the table and backrest unit. Figure 83. Remove the pull spring. 9. Put the column down on a flat surface. 10.Remove the pull spring from the hole at the bottom of the column bracket with a needle-nose pliers. 44

Figure 84. Remove the table bracket. 11.Remove the four screws and washers from the table bracket. Figure 85. Pull out the cable pulley assembly. 12.Separate the table bracket from the column (approximately 10″) and pull out the cable pulley assembly from the column. Figure 86. Remove the cable holder from the column. 13.Remove the two screws from the cable holder on the column, remove the cable holder from the column and remove the cable holder from the cable to the control panel. 14.Pull out the cable to the control panel from the column. Figure 87. Pull out the cable to the control panel from the cable pulley assembly. 15.Pull out the cable to the control panel from the cable pulley assembly. 45

Figure 88. Remove the cable to the control panel from the cable holder on the table bracket. 16.Remove the cable to the control panel from the cable holder on the table bracket. Figure 89. Remove the control panel from the table bracket. 17.Remove the screws from the table bracket and remove the control panel from the table bracket. 46

4.9.2 Installing the control panel The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. • Needle-nose pliers. • Wire hook. Figure 90. Measurement for correct positions of cable holders. 1. Mark out the distance (A) from the control panel to the position of the cable holder that attach the cable on the table bracket. Correct distance is 4.3″. 2. Mark out the distance (B) from the control panel to the cable holder that attach the cable to the column. Correct distance is 19.7″. Figure 91. Attach the control panel to the table bracket. 3. Attach the control panel to the table bracket the with the two screws. Make sure that the charger socket is facing the V-shaped opening of the table bracket. Tightening torque: 2.1 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 92. Attach the cable to the cable holder on the table bracket. 4. Attach the cable to the cable holder on the table bracket. Make sure that the measured and marked out distance, 4.3″, on the cable is in the center of the cable holder. See step 1 for information on the measurement. A B 47

Figure 93. Pull the end of the cable to the control panel through the cable pulley assembly. 5. Pull the end of the cable to the control panel through the cable pulley assembly. Figure 94. Pull the end of the cable to the control panel through the column. 6. Pull the end of the cable to the control panel through the column. Make sure that the column is adjusted to its lowest setting. Figure 95. Attach the cable holder on the column. 7. Put the cable in the cable holder and attach the cable holder on the column with the two screws. Make sure that the measured and marked out distance, 19.7″, on the cable is in the center of the cable holder. See step 2 for information on the measurement. Tightening torque: 2.1 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 48

Figure 96. Put the cable pulley assembly (A) in the column and put the table bracket (B) on the column. 8. Put the cable pulley assembly (A) in the column and use a wire hook to pull the pull spring through the column. 9. Put the table bracket (B) on the top of the column. Make sure that the charger socket is facing the front of the column. Figure 97. Attach the end of the pull spring in the hole at the bottom of the column bracket. 10.Use a needle-nosed pliers to attach the end of the pull spring in the hole at the bottom of the column bracket. A B 49

Figure 98. Attach the table bracket on the top of the column. 11.Attach the table bracket on the top of the column with the four screws and washers. Tightening torque: 7.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 99. Correct installation of the cable holder (A), the cable pulley assembly (B), and the pull spring (C). 12.Make sure that the cable holder (A) and the cable pulley assembly (B) are correctly installed and make sure that the pull spring (C) is correctly attached. 13.Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 14.Install the table and backrest unit. For instructions, see 4.5.2 Installing the table and backrest unit. 15.Install the seat. For instructions, see 4.4.2 Installing the seat. A B C 50

4.10 Batteries The following tools are necessary for this task: WARNING! Turn off the main circuit breaker Always turn off the main circuit breaker when you do service on the batteries. WARNING! Use safety gloves and safety goggles Always use safety gloves and safety goggles when working with batteries. Exercise caution when using metallic tools or other objects while working with batteries. Batteries are heavy and charged devices and must be handled with great caution. Failure to follow any of these warnings could cause a short circuit, explosion, property damage and/or bodily harm. WARNING! Handling batteries - avoid short-circuit Exercise caution when using metallic objects during work with batteries. A short-circuit can easily cause an explosion. Always use safety gloves and goggles. Remember that the batteries are heavy and must be handled with great caution. CAUTION! Recycling batteries Used batteries must be disposed of responsibly in accordance with local recycling regulations. 4.10.1 Charging the batteries Figure 100. Position of the charging socket. The Explorer Mini must only be charged with the supplied battery charger in a dry room with good ventilation. There is a green LED on the battery charger that is lit when the battery is fully charged. Read the user manual supplied with the battery charger. While the Explorer Mini charges, it is automatically locked and cannot be driven. The LEDs on the battery indicator show the battery status. For information on the battery status, see 6.2.1 LEDs on the battery indicator. CAUTION! Sharp edges on cable Be careful when connecting the cable to the socket. The edges of the three-pin contact are sharp. 51

NOTICE Prevent sunlight Make sure that the Explorer Mini and the charger are not positioned in immediate sunlight during charging. NOTICE Automatically locked for driving The Explorer Mini is automatically locked for driving during charging. If it is still possible to drive during charging, contact your dealer. 1. Press the on/off button to turn off the power. Figure 101. Connect the charging connector to the charging socket. 2. Connect the charging connector to the charging socket of the Explorer Mini. 3. Connect the charger contact to the wall socket. 4. Charge the batteries. 5. Disconnect the charger contact from the wall socket. 6. Disconnect the charging connector from the charging socket of the Explorer Mini. 52

4.10.2 Removing the batteries • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. • Pliers. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 102. Disconnect the cables from the terminals of the batteries. 2. Disconnect the cables from the terminals of the batteries. Make sure you hold the connectors and not the cables when disconnecting them. Figure 103. Disconnect the cables from the battery saving module. 3. Press the latches on the connectors and disconnect the cables from the battery saving module. 53

Figure 104. Remove the battery bracket, including the battery saving module, and the batteries. 4. Remove the two screws from the battery bracket, remove the battery bracket, including the battery saving module, and remove the batteries. 54

4.10.3 Installing the batteries • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. • Allen socket, 5 mm. • Pliers. Figure 105. Put the batteries in the chassis. 1. Put the batteries in the chassis with their terminals facing the caster wheels and attach the battery bracket, including the battery saving module, with the two screws. Tightening torque: 4.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 106. Connect the cables to the battery saving module. 2. Connect the cables to the battery saving module. Figure 107. Connect the cables to the batteries´ terminals. 3. Connect the cables to the batteries´ terminals. 55

4. Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 56

4.11 Circuit breakers The following tools are necessary for this task: 4.11.1 Electrical fault NOTICE Investigate tripped main circuit breaker A tripped main circuit breaker often indicates a major electrical fault. The cause of a tripped main circuit breaker must be carefully investigated and determined before resetting the circuit breaker. The main circuit breaker also functions as a fuse, and the Explorer Mini will automatically be turned off if an electrical fault occurs. If this happens you can try to turn on the Explorer Mini again. If the Explorer Mini is overloaded because of high power consumption, the main circuit breaker may be tripped, and a major electrical fault may be the cause. Carefully investigate the cause before you start the Explorer Mini again. 4.11.2 Removing the main circuit breaker • Torque wrench. • Torx T8 socket. • Pliers. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 108. Disconnect the main circuit breaker. 2. Disconnect the two cables from the main circuit breakers´ terminals. 57

Figure 109. Remove the cover from the main circuit breaker. 3. Remove the two screws from the cover of the main circuit breaker. Figure 110. Remove the main circuit breaker. 4. Press the snap-fit joint with a screwdriver or pliers, one side at a time, to remove the main circuit breaker from the bottom cover. 58

4.11.3 Installing the main circuit breaker • Torque wrench. • Torx T8 socket. • Pliers. Figure 111. Attach the main circuit breaker. 1. Snap the main circuit breaker in place to attach it in the hole of the bottom cover. Figure 112. Sticker for the main circuit breaker and the start button. 2. Make sure that the on/off positions on the main circuit breaker corresponds to the on/off positions on the sticker. Figure 113. Attach the cover on the main circuit breaker. 3. Attach the cover on the main circuit breaker with the two screws. Make sure that the on/off positions on the cover corresponds to the on/off positions on the main circuit breaker. Tightening torque: 0.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 59

Figure 114. Connect the main circuit breaker. 4. Connect the two cables to the terminals of the main circuit breaker. 1. Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 60

4.11.4 Removing the start button • Torque wrench. • Torx T8 socket. • Pliers. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 115. Disconnect the cable to the start button from the battery saving module. 2. Disconnect the cable to the start button from the battery saving module. Figure 116. Remove the start button. 3. Press the snap-fit joint with a screwdriver or pliers, one side at a time, to remove the start button from the bottom cover. 61

4.11.5 Installing the start button • Torque wrench. • Torx T8 socket. • Pliers. Figure 117. Put the start button in place. 1. Turn the start button with its connectors facing downward. 2. Pull the cable through the hole of the bottom cover and snap the start button in place. Figure 118. Attach the start button. 3. Connect the cable from the start button to the battery saving module. 1. Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 62

4.12 Drive unit 4.12.1 Removing the drive units The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. 2. Remove the bottom cover. For instructions, see 4.6.2.1 Removing the bottom cover. 3. Remove the drive wheels. For instructions, see 4.7.1 Removing the drive wheels. Figure 119. Disconnect the drive units from the nVR2 power module. 4. Press the latches on the connector of each drive unit and disconnect the cable to each drive unit from the nVR2 power module. Figure 120. Remove the cables from the cable holders. 5. Remove the cable for each drive unit from the cable holders. Figure 121. Loosen the screw on the wheel hub. 6. Loosen the screw on the wheel hub for each drive unit. Do not remove the screw. 63

Figure 122. Pull off the wheel hub from the axle. 7. Pull off the wheel hub from the axle to each drive unit. Figure 123. Remove the drive unit. 8. Remove the three screws from each drive unit and remove the drive units. 64

4.12.2 Installing the drive units The following tools are necessary for this task: • Torque wrench. • Allen socket, 3 mm. • Allen socket, 4 mm. Figure 124. Put each drive unit in the chassis. 1. Put each drive unit in the holes of the chassis. The axle of each drive unit should protrude through the hole and the three threaded holes of each drive unit should be aligned with the three holes of the chassis. Attach the three screws to each drive unit. Tightening torque: 4.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 125. Slide the wheel hub to the end stop on the axle of each drive unit. 2. Slide the wheel hub to the end stop on the axle of each drive unit. Figure 126. Tighten the screw on the wheel hub. 3. Thighen the screw on the wheel hub for each drive unit. Tightening torque: 4.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. 65

Figure 127. Connect the drive units to the nVR2 power module. 4. Connect the cable of each drive unit to the nVR2 power module. Make sure that the left and right output connector are connected to the left and right drive unit. Figure 128. Attach the cables to the cable holders on the chassis. 5. Attach the cables to the cable holders on the chassis. 6. Install the drive wheels. For instructions, see 4.7.2 Installing the drive wheels. 7. Install the bottom cover. For instructions, see 4.6.2.2 Installing the bottom cover. 8. Install the top cover. For instructions, see 4.6.1.2 Installing the top cover. 66

4.13 nVR2 power module 4.13.1 Removing the nVR2 power module The following tools are necessary for this task: • Torque wrench. • Allen socket, 4 mm. 1. Remove the top cover. For instructions, see 4.6.1.1 Removing the top cover. Figure 129. Positions of the cable holders. 2. Remove the cable to the control panel from the cable holders. Figure 130. Disconnect the three cables. 3. Press the latches on the connector of each drive unit and the batteries and disconnect the cables to the drive units and the batteries from the nVR2 power module. Figure 131. Remove the nVR2 power module. 4. Remove the two screws from the nVR2 power module and remove the nVR2 power module. 67

4.13.2 Installing the nVR2 power module The following tools are necessary for this task: • Torque wrench. • Allen socket, 4 mm. Figure 132. Attach the nVR2 power module. 1. Attach the nVR2 power module to the metal chassis with the two screws. Tightening torque: 4.2 lb. ft. WARNING! Use recommended tightening torque Use the recommended tightening torque to reduce the risk of damage to the wheelchair and to prevent causing injury to the user. Figure 133. Connect the three cables to the nVR2 power module. 2. Connect the cable of each drive unit and the cable of the batteries to the nVR2 power module. Figure 134. Attach the cable to the control panel to the cable holders. 3. Attach the cable to the control panel to the cable holders. 4. Attach the top cover. For instructions, see 4.6.1.2 Installing the top cover. 68

5 Adjustments Make sure that all settings are adapted to the child’s needs. An adult or healthcare provider must decide which settings are applicable for the child, taking into consideration his or her age and capacity. WARNING! Do not adjust while the child is in the wheelchair Do not adjust the settings while the child is in the Explorer Mini. 5.1 Seat 5.1.1 Adjusting the seat height The seat height is dependent on the height of the table and backrest unit. When the height of the table and backrest unit is adjusted, the distance between the seat and the base module is also changed. The center of gravity changes when you change the position of the seat. When you raise the seat, you decrease the wheelchair´s stability. Use the plunger knob located under the seat to adjust the seat height. CAUTION! Pinch risk There is a pinch risk when you adjust the height. Figure 135. Adjusting the seat height. 1. Pull out the plunger knob (A) located under the seat. 2. Carefully move the seat up or down to the new setting. 3. Release the plunger knob (A). A click signals that the plunger knob is locked. WARNING! Risk of injury Make sure that the seat and the table and backrest unit are locked in their positions before the child sits in the Explorer Mini. A 69

5.1.2 Table and backrest unit When the height of the table and backrest unit is adjusted, it affects the distance between the seat and the base module. The center of gravity changes when you change the position of the table and backrest unit. When you raise the table and backrest unit, you decrease the wheelchair´s stability. CAUTION! Pinch risk There is a pinch risk when you adjust the height. 5.1.2.1 Adjusting the height of the table and backrest unit Figure 136. Loosen the tightening knob (A), hold the table its position (B) and pull out the plunger knob (C). 1. Loosen the tightening knob (A). 2. Hold the table in its position (B) to prevent it from sliding down on the base module. 3. While you hold the table in its current position, pull out the plunger knob (C). 4. While you continue to pull the plunger knob (C), move the column up or down to the new setting. 5. Release the plunger knob (C). A click signals that the plunger knob (C) is locked. 6. Tighten the tightening knob (A) by hand. WARNING! Risk of injury You must hold the table and backrest unit with one hand at all times when you adjust the height of the table and backrest unit. If you do not, it can slide down quickly and cause injury. Make sure that the seat and the table and backrest unit are locked in their positions before the child sits in the Explorer Mini. A B C 70

5.2 Locking and unlocking the Explorer Mini Figure 137. The Explorer Mini can be locked to prevent other users from driving it. The Explorer Mini can be locked to prevent other users from driving it. When the Explorer Mini is locked it cannot be driven before it is unlocked again. An adult must lock or unlock the wheelchair. 5.2.1 Locking The Explorer Mini is unlocked with the steps below. Step 3 and 4 must be done swiftly, otherwise the procedure gets interrupted and you must start again from step 1. Figure 138. Procedure for locking. 1. Make sure that the Explorer Mini is turned on. 2. Press and hold the on/off button for one second until a beep sounds. 3. Push the joystick forward until a beep sounds. 4. Pull the joystick backward until a beep sounds. 5. Release the joystick. A beep sounds and the Explorer Mini is locked for driving. 71

5.2.2 Unlocking The Explorer Mini is unlocked with the steps below. Step 4 and 5 must be done swiftly, otherwise the procedure gets interrupted and you must start again from step 2. Figure 139. Procedure for unlocking. 1. Remove the tray top. 2. Make sure that the Explorer Mini is turned on. 3. The LEDs of the maximum speed indicator will flash repeatedly. 4. Push the joystick forward until a beep sounds. 5. Pull the joystick backward until a beep sounds. 6. Release the joystick. A beep sounds and the Explorer Mini is unlocked and can be driven. 72

6 Troubleshooting 6.1 Troubleshooting guide This troubleshooting guide describes the most common events that can occur when you use the Explorer Mini. It also describes possible causes and remedies. This troubleshooting guide is not exhaustive. NOTICE Unapproved replacement of parts If any part is replaced without approval from Permobil, the wheelchair warranty will become void. Permobil accepts no liability for any loss that occurs as a result of a control system component being opened, adjusted or modified without permission. Event Possible cause Remedy The Explorer Mini does not start. The batteries are discharged. Charge the batteries. For instructions, see 4.10.1 Charging the batteries. The battery saving function has started. Press and hold the start button for at least one second. Explorer Mini is turned off. The main circuit breaker is turned off or tripped. Reset the main circuit breaker and press and hold the start button for at least one second. For instructions on tripped main circuit breaker, see 4.11.1 Electrical fault. The main circuit breaker is turned on, but the start button has not been pressed. Press and hold the start button for at least one second. The Explorer Mini cannot be driven. The battery charger is connected. Stop the charging procedure and disconnect the charger cable from the charger socket on the Explorer Mini. The Explorer Mini is locked. Unlock the wheelchair. For instructions, see . The Explorer Mini will automatically be turned off after a period (90 minutes) of inactivity. The battery saving function has been started. Press and hold the start button for at least one second. The Explorer Mini stops during driving. The main circuit breaker is tripped. For instructions on tripped main circuit breaker, see 4.11.1 Electrical fault. The batteries are discharged. Charge the batteries. For instructions, see 4.10.1 Charging the batteries. The Explorer Mini cannot be charged. The main circuit breaker is turned off. Turn on the main circuit breaker and press and hold the start button for at least one second. The main circuit breaker is turned on, but the start button is not pressed. Press and hold the start button for at least one second. Either an incorrect battery charger is used or the battery charger is damaged. Make sure that you use the battery charger that was supplied with the Explorer Mini. If it still is not possible to charge, you may need to replace the battery charger. 73

Event Possible cause Remedy The main circuit breaker cannot be turned on. Electrical fault. For instructions on tripped main circuit breaker, see 4.11.1 Electrical fault. 74

6.2 Control panel diagnostics Each time you turn on the Explorer Mini a self-diagnostic check of the electronics is done. If a fault has occurred it is indicated by flashing LEDs on the battery indicator and the maximum speed indicator. You need to remove the tray top to access the control panel and the LEDs on the battery indicator and the maximum speed indicator. For information on how to remove the tray top, see 4.2.1 Removing the tray top. Troubleshooting and repairs must always be performed by qualified personnel with good knowledge of the wheelchair‘s electronics. NOTICE Error signals Error messages are not displayed on the indicators while the wheelchair is being driven. They appear when it is next started. 6.2.1 LEDs on the battery indicator Figure 140. Battery indicator. A shows the red LED lit. B shows the yellow LEDs lit. C shows the green LEDs lit. The LEDs on the battery indicator show the battery status and if a problem with the electronics has occurred: • When the batteries are fully charged, the red LED (A), yellow LEDs (B), and green LEDs (C) are lit. • When the battery level is critically low, the red LED (A) flashes and a beep sounds. This means that you have to charge the batteries immediately to prevent that the Explorer Mini stops working. • If all LEDs (A, B, and C) flash, there is a problem with the electronics. 6.2.2 LEDs on the maximum speed indicator Figure 141. Maximum speed indicator. A shows the maximum setting. B shows the medium setting. C shows the minimum setting. The LEDs on the speed indicator show the current maximum speed setting and if a problem with the electronics has occurred: • When the fifth LED (A) is lit, the maximum setting is active. • When the third LED (B) is lit, the medium setting is active. • When the first LED (C) is lit, the minimum setting is active. • If the LEDs flash, there is a problem with the electronics. 6.2.3 Rapidly flashing, one to ten LEDs If the LEDs on the battery indicator and the maximum speed indicator rapidly flash a fault has occurred in the electronics of the Explorer Mini and you may not drive the wheelchair. Follow the instructions below: 1. Turn off the wheelchair. 2. Turn on the wheelchair. If the fault continues, count the flashes and find a possible cause and remedy. See 6.2.4 Example of error messages and remedies. 3. Do not use the Explorer Mini until the problem is solved or you have received other information from your service provider. 75

6.2.4 Example of error messages and remedies If the problem continues after you have done the remedies described in the table below, please contact your service provider or Permobil. For contact information, see 1.2 Technical support. Event Possible cause Remedy One flash The connection to the batteries is poor or the batteries needs to be charged. Make sure that the connections to the batteries are correct. Charge the batteries. Two flashes The connection to the left drive unit is poor. Make sure that the connection to the left drive unit is correct. Three flashes The left drive unit has a short-circuit to the battery connection. Investigate if an electrical fault has occurred. If necessary, you may need to replace the left drive unit. Four flashes The connection to the right drive unit is poor. Make sure that the connection to the right drive unit is correct. Five flashes The right drive unit has a short-circuit to the battery connection. Investigate if an electrical fault has occurred. If necessary, you may need to replace the right drive unit. Seven flashes Joystick error 1. Make sure that the joystick is in the neutral position. 2. Press the on/off button to turn off the control panel. 3. Remove the tray top to make sure that the LEDs on the control panel are off. 4. Press the on/off button to turn on the control panel again. Eight flashes Error in the control system. Make sure that all connections are secured. Nine flashes Poor connection to the parking brake. The parking brake function should not be available. Make sure that the device is correctly programmed. Ten flashes Excessive voltage to the control system, which is probably caused by poor connection to the batteries. Make sure that the connections to the batteries are correct. 6.2.5 Repairing defective units Apart from specific OEM-approved spare parts, there are no replaceable parts in the nVR2 control system. Contact Permobil for further information on OEM-approved spare parts. 76

Base module, wiring diagram .........13 Batteries, charging.........................51 Batteries, install .............................55 Batteries, remove ..........................53 Batteries, wiring diagram ...............13 Bottom cover, install .....................36 Bottom cover, remove...................33 C Caster wheels, install......................43 Caster wheels, remove...................42 Charging batteries .........................51 Circuit breaker, install ...................59 Circuit breaker, remove.................57 Control panel, install .....................47 Control panel, LED diagnosics .......75 Control panel, LED error messages .....................................76 Control panel, remove...................44 Control panel, serial number..........14 Cushion, attaching ........................15 Cushion, removing .......................15 D Defective units..............................76 Drive unit, install ..........................65 Drive unit, remove........................63 Drive wheels, install ......................41 Drive wheels, remove....................40 E Electrical fault...............................57 I Important information.....................9 L Locking and unlocking wheelchair..................................71 M Maximum speed indicator..............75 N nVR2 power module, install ..........68 nVR2 power module, remove .......67 nVR2 power module, serial number ......................................14 O Ordering documentation .................9 S Safety instructions .........................10 Scrapping and recycling ...................9 Seat height, adjustment..................69 Seat, installing...............................18 Seat, removing..............................17 Serial number ...............................14 Spare parts and accessories................9 Start button, install ........................62 Start button, remove......................61 Sticker, serial number ....................14 Stickers ........................................14 T Table and backrest unit, adjustments.................................70 Table and backrest unit, install........22 Table and backrest unit, remove.....20 Technical support ...........................9 Top cover, install ..........................29 Top cover, remove........................25 Tray top, attaching........................16 Tray top, removing .......................16 Troubleshooting, charging.............73 Troubleshooting, driving ...............73 Troubleshooting, electrical fault .....73 Troubleshooting, starting...............73 Troubleshooting, stopping .............73 W Warranty........................................9 Wheelchair, overview ...................12 Wiring diagram, base module.........13 Wiring diagram, batteries...............13 77