Pfaff 910 Series Service Manual

to date. Subject to alteration! The reprinting, copying or translation of PFAFF Service Manuals, whether in whole or in part, is only permitted with our previous agreement and with written reference to the source. G.M. PFAFF Aktiengesellschaft Postfach 3020 D-67653 ...

Contents ...............................................................................Chapter - Page 1 Safety ........................................................................................................................ 1 - 1 1.01 General notes on safety .......................................................................... ...

G This machine must only be operated by adequately trained operators and only after having completely read and understood the Instruction Manual! G All Notes on Safety and Instruction Manuals of the motor manufacturer are to be read before operating the machine! G The Danger and Safety Instructions on the machine ...

Danger of injury to operating and specialist personnel! 1.03 Danger Do not reach into the sewing area while sewing! Danger of injury caused by needle! Do not leave any objects on the table or near the needle plate while carrying out adjusting work. Objects can become jammed or be slung away! Danger of ...

2 Adjustment On the PFAFF 918, 937, 938 and 939 no c-clamps may be attached to the needle bar as this would damage the special coating on the needle bar. 2.01 Notes on adjusting All adjustments in these adjustment instructions are based on a completely assembled machine and must only be carried out by trained specialists. Covers on the machi ...

2.05 Check and adjustment aid By blocking with holes 1 - 4 the required needle bar positions can be fixed exactly. G Turn the balance wheel until the needle bar has approximately reached the required position. G Place the 5 mm blocking pin in the appropriate hole and put pressure on it. G Turn the balance wheel forwards and backwards a littl ...

2.06 Pre-adjusting the control cam 24V = 4% ED 837-14-44 5 5 6 7 6 1 2 3 4 2 Fig. 2 - 02 G Unscrew screw 3 and remove retaining spring 4 together with the cover washer. G Loosen screws 5 and 6. G Turn control cam 1 in accordance with requirement 1 and position it in accordance with requirement 2. G Tighten screws 5. G Push retaining collar 7 ...

Requirement With the needle bar 2.0 past bdc (hole 1): 1. the roller of roller lever 1 must fall lightly into control cam 2 when roller lever 1 is lightly tapped 2.07 Roller lever G Loosen screws 3 and 4. G Put pressure on rock shaft 5 to the right. G Move roller lever 1 in accordance with the requirement. G Tighten screw 3. G Loosen screw 6 ...

2.08 Pawl Requirement With the thread trimmer in resting position there must be a clearance of 0.3 mm between pawl 1 and the largest eccentricity of the lobe on control cam 2. 24V = 4% ED 37-14-46 Fig. 2 - 04 1 2 2 3 1 0.3 mm 3 4 G Position the largest eccentricity of the lobe on control cam 2 underneath pawl 1. G Loosen screw 4. G Position ...