Related Manuals for Pfaff 1422-900/81
Summary of Contents for Pfaff 1422-900/81
- Page 1 -900/81 Service manual for the PFAFF 1422 296-12-17 965 Justieranleitung engl. 01.2000...
- Page 2 The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in part, is only permitted with our previous authorization and with written reference to the source. G.M. PFAFF Aktiengesellschaft Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655 Kaiserslautern...
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Page 3: Table Of Contents
Index Contents ................Chapter - Page Safety .......................... 1 - 1 1.01 General notes on safety ....................1 - 1 1.02 Safety symbols ......................1 - 2 1.03 Danger ......................... 1 - 2 Adjustment ......................... 2 - 1 2.01 Notes on adjusting ....................... 2 - 1 2.02 Tools, gauges and other accessories ................ -
Page 4: Safety
Safety Safety General notes on safety This machine may only be operated by adequately trained operators and only after having completely read and understood the Instruction Manual! All Notes on Safety and Instruction Manuals from the motor manufacturer are to be read before operating the machine! The danger and safety instructions on the machine itself are to be followed! This machine may only be used for the purpose for which it is intended and may not be... -
Page 5: Safety Symbols
Safety Safety symbols Danger! Points to be observed. Danger of injury to operating and specialist personnel! Danger Never reach into the sewing area while sewing! Danger of injury by the needle! Never leave objects on the table or in the needle plate area while adjusting the machine settings! Objects can become trapped or be slung away! Danger of injury! In order to carry out adjustments on this device, the machine must be tipped... -
Page 6: Adjustment
Adjustment Adjustment Please observe the safety instructions of this service manual and the notes on safety in the instruction manual before carring out any maintenace or adjustment work. Notes on adjusting All adjustments in these adjustment instructions are based on a completely installed machine and must only be carried out by appropriately trained specialists. - Page 7 Adjustment Resting position of roller lever/radial position of control cam Requirement 1. When cylinder plunger 1 is retracted there must be a clearance of 0.1 mm between outer edge of control cam 6 and the roller of lever 5. 2. When cylinder plunger 1 is retracted and the take-up lever is at t.d.c., control cam 6 must just move roller lever 5 to its resting position 0,1 mm Fig.
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Page 8: Thread Catcher Height
Adjustment Thread-catcher height Requirement The lower edge of thread catcher 3 must clear bobbin case 4 by about 0.8 mm. Fig. 2 - 02 Loosen screws 1 and 2. Set thread catcher 3 above bobbin case 4. Re-position thread catcher 3 (screw 5) according to Requirement. Balance out the vertical play of shaft 6, set fixing collar 7 against bearing housing 8 and tighten screw 2. - Page 9 Adjustment Thread catcher position Requirement When the thread catcher is in its resting position, the edges of thread catcher 4 and knife 5 must be flush (see arrow). Fig. 2 - 03 Set needle bar at b.d.c. and push roller lever 2 against control cam 3. Turn thread catcher 4 according to Requirement.
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Page 10: Knife Height
Adjustment Knife height Requirement With the thread trimmer in its resting position the edges of thread catcher 3 and knife 5 must be flush (see arrow). Fig. 2 - 04 Check knife height according to Requirement. To adapt the height of knife 1, remove it (screws 2) and fit shims (part No. -
Page 11: Knife Pressure
Adjustment Knife pressure Requirement When the front edge of thread catcher 3 has passed the cutting edge by half, knife 4 must rest with light pressure on the edge of the catcher. Fig. 2 - 05 Set take-up lever at b.d.c. and push roller lever 1 into control cam 2. Turn balance wheel until front edge of catcher 3 has passed cutting edge of knife 4 by half. - Page 12 Adjustment Bobbin-thread retaining spring Requirement Retaining spring 1 must 1. not be deflected during the thread catcher movement, 2. reliably retain bobbin thread 4 after cutting, and 3. not hinder removal and replacment of the bobbin case. Fig. 2 - 06 Set thread trimmer at its resting position.
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Page 13: Thread Catcher Transmission Crank
Adjustment Thread catcher transmission crank Requirement With the thread trimmer in its resting position the bearing points of roller 3, roller lever 4 and ball-joint 5 must be aligned. Fig. 2 - 07 Set thread trimmer at resting position. Turn transmission crank 1 (screw 2) according to Requirement. 2 - 8... -
Page 14: Transmission Linkage
Adjustment Tansmission linkage Requirement With the thread trimmer in its resting position, transmission cranks 3 and 4 must stand parallel with each other. Fig. 2 - 08 Set the thread trimmer at its resting position. Adjust transmission linkage 1 (screws 2) according to Requirement. If problems occur in thread catching on the left sewing hook, the catcher stroke can be increased (+) or decreased (-) by turning transmission crank 3. - Page 15 Adjustment Manual cutting test Requirement 1. When thread catcher 1 is on its forward stroke, it must not carry bobbin thread 3 forward too. 2. When thread catcher 1 is in its front position, bobbin thread 3 must be approx. 2 mm behind the prong of thread catcher 1.
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Page 16: Synchronizer
Adjustment Synchronizer Requirement 1. When sewing is interrupted, the machine must stop at a position that is 4 mm above the BDC of the needle bar. 2. After thread trimming is completed, the machine must position itself at the TDC of the take-up lever. - Page 17 Adjustment Parameter adjustments On the control panel the paramaters can be adjusted on the display. Group Parameter Meaning Adjustm. range Standard setting Trimming l = yes ll = no Trimming speed 1 30 - 300 Needle position 0 0 - 239 Reference position of needle Angle position I = Adjusting synchroniser with...
- Page 18 G.M. PFAFF Aktiengesellschaft Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655 Kaiserslautern Telefon: (0631) 200-0 Telefax: (0631) 17202 Internet: www.PFAFF.de Gedruckt in der BRD Printed in Germany Imprimé en R.F.A. Impreso en la R.F.A.
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