Fein ASb 658 Operating Instructions

Operating instructions for the double insulated and radio suppressed Impact Wrench type ASb 658 and ASb 758 (42 Volts) 1. Technical data Current: "'-' (single phase AC) Internal fuses for 220 Volts: 10 A (slow) or 15 A (fast) For screws 1) max. Speed R.P.M. Taps Input I Net weight I Type high tensile I standard torque no load per min. Watts Square drive from j up to from j up to kpm j ibs. ft ASb 658 M 18 M22 M20 M27 70 500 1400 ASb 758 (3/4") f/s") (lf[ ) (1 1/,6") I I 1) see diagram on page 4 2. Construction This impact wrench is an electric tool of class II in accordance with the VDE regulations 0740. In addition to the normal insula- tion the tool is provided with double insulation. The second insulation separates all accessible parts of the metal casing from all internal parts liable to become live. The protective insula- tion is tested with the prescribed test voltage of 4000 V (1500 V for class I) . The machine is radio suppressed in accordance with radio interference degree N. It is supplied with a two-core cable without earth wire and must not be earthed. Gearing and percussion mechanism are totally enclosed in the tool-head casing ; their construction is well-planned and clear. The tool holder complies with international standards and has a 1" square drive. The machine is provided with a reversing switch for clockwise and anticlockwise rotation. It must not be operated when the machine is running. To prevent the overbridging of the insulation no additional marking plates and signs must be riveted or screwed on the housing. We recommend the use of transfers only. BE 215/e X 8. 71 Printed in Germany lbs I kg I 1280 450 1" 15 6.8 Type ASb 758 for low tension (42 Volts) is of the same design, but not radio suppressed. 3. Connection Main v oltage must correspond to the operating voltage marked on the rating plate. The tool can be plugged into plain or safety sockets. 4. Mode of Operation The motor drives the tool holder with tool attached via gearing and percussion mechanism. The direct drive is cut out as soon as the screw or nut has been roughly run down. Once the motor reaches its rated load, the percussion mechanism comes into operation and converts the drive force of the motor - which continues to run at uniform speed - into an intermittent torque with two strokes for each revolution of the· driv e assembly. Screws and nuts are slackened in reverse order: first percussion strokes, followed by direct drive. The tool is easy to handle, as the operator needs not exert any restraining torque. As the clutch will always disengage as soon as the rated load is attain- ed, the motor cannot be overloaded.

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46-55 A 10-11-1 1 driving shaft, assembled 1 MK3-101 1 motor housing 2, 3 MK 13-11-1 1 insulator, assembled 46 A 10-11 I 1 driving shaft 47 ZR 1-66xl 2 planetary gear wheel 2 MK 13-11 1 insulator 48 LK 6-37 2 needle cage 3 EZ 12-50 2 carbon holder 49 BF 16-54 2 I bearing pin 4 SR 2-M5x15 2 cylindrical screw 50 LK 1-39 1 groove ball bearing 5 PT 5a-M5 2 spring washer 51 LK8-3 29 balls 6 state ASb 658 and voltage 1 pole housing with winding 52 RJ 2-40 1 compression ring 7 SR 1-M4x60 ' 2 hexagon screw 53 FD 1-191 1 compression spring 54 LK 8-9 2 balls 8 PT 37-13 I 2 protecting plate 9 EZ 19-51 2 connection cable 55 A 12-13 1 percussion piston 56 A 4-45 1 tool holder 10 EZ 11-70 2 carbon brush 11, 12 PT 27-37-1 2 cover, assembled 13 SR 2-M4x12 4 cylindrical screw 57-58 . LA 8-114-1 1 outer bearing, assembled 15-20 state ASb 658 1 armature with winding, commutator 57 LA 8-114 1 outer bearing and voltage and fan, balanced 58 MZ 31-1 1 oiler 20 FL 4-2-1 1 fan wheel, assembled 60 LK 16-29 1 groove ball bearing 21,22 LA 6-166-1 1 intermediate bearing with gear rim 61 LK 16-2 1 groove ball bearing 23 I RJ 16-12 1 Seeger circlip 62 RJ 27i-12x28,1 1 Nilos ring 28 EZ 7-119 1 .cable with plug, 16.4 ft (5 m) long 63 RJ 30a-12x1 1 Seeger circlip 64 SR 33-M5x45 4 hexagon socket screw 29-36 ' GH 4-64-13 1 handle assembled with switch 65 PT5d-M5 4 securing plate ' 29-31 I GH 4-64-1 1 handle, assembled 29 I GH4-64 1 lower handle part I 30 I GH 4-65 1 upper handle part 31 SR3-M4x25 2 fillister screw 32 I EZ 1-68 1 switch 66 JS 6-28 1 2 insulating sleeve 67 SR 33-M5x25 8 hexagon socket screw 68 RJ 24-39 I 42 Volts 33 EZ 22-32 1 capacitor 34 PT 31-21 1 cable clamping bridge 1-13 MK 3-101-6 1 motor housing, assembled 35 SR 3-M3,5x12 2 fillister screw 2-3 MK 13-11-2 1 insulator, assembled 36 JS 13-52 1 cable protecting sleeve 3 EZ 12-51 2 carbon holder 10 EZ 11-41 2 carbon brushes 37-44 GH 4-66-2 1 handle assembled with reversing 28 EZ 6-139 1 cable switch 37-41 GH 4-66-1 1 handle, assembled 37 GH 4-66 1 lower handle part 39 JS 16-39 1 plug 40 GH4-65 1 I upper handle part I I 41 SR 3-M4x25 2 fillister screw Accessories I z 85f-27 1 tool for hexagon screws 42 EZ 1-55-1 1 reversing switch, assembled BF 35-9 1 guard pin JS 19-5 1 rubber ring MZ 60-3/Sst 1 1 tube of grease z 10-10 1 socket spanner EZ 11-70 2 spare carbon brush, ASb 658 EZ 11-41 2 spare carbon brush, ASb 758

time during which the percussion mechanism is allowed to run. Max. tightening torque is the sum of the torque applied by each stroke.1 According to the type of screwed connection the max. torque will generally represent approx. 100 single torque strok- es, which are applied in 5 seconds. Available max. torque in normal service is 500 lbs. ft (70 mkg) (see diagram). There is no point in applying the tool for longer than 5 seconds since the torque will not increase any further, while the tool head will appreciably heat. Overheating will lead to increased wear of all percussion components and excessive lubricant consumption. 6. Maintenance and Lubrication This will depend on the duty. The following instructions are for continuous use in 8-hour day with actual tool running time representing 20°/o of total duty period. Grease once per week at the lubricating nipple (58). Percussion mechanism and gearing should be completely cleaned of old grease at least every 400 duty hours (approx. 8 weeks). For this purpose unscrew four screws (64). remove outer bear- ing (57) and lift percussion mechanism out of intermediate bear- ing without dismantling it. Then apply plenty of grease Sst 1 to the impact faces of parts (55) and (56), as well as to planetary gearing (80 g/2 oz). Reference for tube: MZ 60-3/Sst 1 (90 g/3 oz). After 900 hours rinse ball bearings in clean solvent and pack with fresh grease (Sst 1). The space between inner and outer rings is to be one third filled with grease in order to prevent overheating of the bearings. To avoid overheating and to ensure adequate lubrication at the same time, it is important to pack the gearing with the grades and quantities of grease listed in the table below: No claims can be entertained for damage due to negligent main- tenance and inadequate lubrication. If, after long duty, the impact dogs of percussion piston (55) and tool holder (50) are worn they must be reground so that the mechanisms should be dismantled according to the instructions. We recommend our Fein Service Stations to carry out all repair work of this kind quickly and expertly. Please, take care that all electric parts are only cleaned dry. 7. Dismantling 1. Pull cable plug out of socket. 2. Take off motor housing cover (11), draw eut carbon brushes (10). 3. Take off handle cover (40 and 30). loosen supply cable and inner connection cables at switch (32). Draw out switch and clamp off cable (28) with cable protecting sleeve (36) from clamping bridge (34). 4. Take off lower handle part (37 and 29), pull out insulating sleeves (66). 5. Unscrew four screws (64). take off outer bearing (57), inter- mediate bearing (21) with armature (15) from motor housing (1) and push armature (15) together with fan wheel and ball bearing (20 and 61) out of intermediate bearing (21). 6. Take off tool holder (56). Push percussion piston (55) on driv- ing shaft (46) backwards and take off two balls (54). Compres- sion spring (53) and compression ring (52) are free. Please, take care that the balls are not lost. The pin (49) for the planetary gear wheel may be easily pushed through the drill hole of the driving shaft (46). Re-assemble in reverse sequence. 8. Repair and Spare Parts We recommend our Fein Service Stations to carry out all over- haul and repair work quickly and expertly. Please, quote Order Reference when ordering spare parts or send in sample part stating the type of the machine. We draw your attention to the need to carry out a high voltage test in accordance with your local regulations (or VDE regu- lation 0740) before taking a tool into service after any repair carried out by your own staff. Prior to work commencing, when working and when servicing the machine always pay attention to the Regulations custo- machine reaches its full tightening torque. Damaged percussion mary in your Country. Diagram for the destination of favourable time of tightening action I Standard Screws I IHigh Tensile Screws I 80 70 -- Example - / 60 / I - ~ I -- - - ~ - ~ I / v - 50 ~- / I I I ~ 40 /_ I / .- - 30 I I / 3~]~ I I J I I / 20 I / 10 ,I' I 'IIi I Time of tightening action 0 5 10 15 (sec) Hard Base p. ex. screws and nuts with washers DIN 125 -- Elastic Base p. ex. car rims, spring washers, stay bolts, extensions -·- Soft Base p. ex. wood-, lead- or fibre-washers, packings J 129 . co - ~ 8 ( (