Pfaff 900/51 Service Manual Download Page 2

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At the time of printing, all information and illustrations contained in this document were up

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

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G.M. PFAFF
Aktiengesellschaft

Postfach 3020
D-67653 Kaiserslautern

Königstr. 154
D-67655 Kaiserslautern

Editing / Illustration

HAAS-Publikationen GmbH

D-53840 Troisdorf

Summary of Contents for 900/51

Page 1: ...900 51 900 57 Service Manual for the series 480 560 and 950 296 12 17607 Justieranleitung dtsch 06 95...

Page 2: ...ting 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 Pos...

Page 3: ...ng the control cam 2 2 2 06 Roller lever 2 3 2 07 Pawl 2 4 2 08 Engaging solenoid 2 5 2 09 Release lever 2 6 2 10 Engaging lever 2 7 2 11 Lateral adjustment of the thread catcher 2 8 2 12 Front revers...

Page 4: ...ecial maintenance work must only be carried out by technicians or persons with appropriate training For service or repair work on pneumatic systems the machine must be disconnected from the compressed...

Page 5: ...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 injury In order to adj...

Page 6: ...fully assembled machine Covers on the machine which have to be removed and replaced for checking and adjustment work are not mentioned in the text Screws and nuts mentioned in brackets are to be loos...

Page 7: ...8 Pull the ball heads of connecting rod 1 off the ball pin at the cutting and control units and remove connecting rod 1 Loosen screws 2 and retaining spring 3 together with the cover disk Loosen scre...

Page 8: ...sily with the control cam 7 and 2 the roller of roller lever 4 should be centred in the cam notch of the control cam 7 Unscrew screws 1 and 2 Put pressure on rockshaft 3 to the right Adjust roller lev...

Page 9: ...e between pawl 2 and the highest point of the control cam should be 0 3 mm Position the bearing surface of control cam 1 with its highest point below pawl 2 by turning the hand wheel Shift pin 3 screw...

Page 10: ...etween the engaging lever 1 and the pawl 2 should be between 0 2 and0 3 mm Position the needle bar 1 8 mm after b d c Manipulate engaging lever 1 until pawl 2 engages Push magneto inductor into the ma...

Page 11: ...approx 0 2 mm Position needle bar 1 8 mm after b d c Activate engaging lever 1 manually Push roller lever 2 onto the bottom of control cam 3 Tighten screw 5 slightly Push release lever 4 onto engaging...

Page 12: ...s in resting position the distance between the roller of the roller lever 3 and the outer diameter of the control cam 4 should be between 0 3 and 0 5 mm Turn screw 1 nut 2 in accordance with the requi...

Page 13: ...remove knife 2 Position needle bar at b d c Push aside catcher stop 3 screws 4 Loosen screws 5 Position the tip of thread catcher 6 in front of the needle by moving the thread catcher carrier Adjust t...

Page 14: ...on finger 4 Push balls of the connecting rod 1 onto the ball pins on the cutting and control units Loosen nuts 2 right hand and left hand thread Position needle bar at t d c Activate the engaging leve...

Page 15: ...thread catcher 6 and the middle of the lug should also be 2 mm Position the needle bar at b d c Activate the engaging lever manually Turn the hand wheel until the distance between the end of hook plat...

Page 16: ...n the distance between the retaining spring 1 and the roller lever 3 should be 0 5 mm 3 2 1 0 5 mm 2 11 Fig 2 10 Position retaining spring 1 together with the cover disk Tighten screws 2 sligthly Push...

Page 17: ...needle bar at b d c Push knife 1 under the safety plate and align in accordance with the requirement Tighten screw 2 slightly Activate the engaging lever manually Turn the hand wheel until the cuttin...

Page 18: ...thread catcher 1 Turn the hand wheel further until the trimming process is finished If both threads are not trimmed in accordance with the requirement loosen screws 2 and align thread catcher 1 with...

Page 19: ...the presser foot onto the needle plate Pull out the thread from between the tension disks Pull down linkage 3 screw 4 until you feel it stop Position the needle bar at b d c and activate the engaging...

Page 20: ...rupted the machine should position itself 4 to 5 mm after the b d c of the needle bar 2 After trimming the machine should position itself at the t d c of the take up lever Adjustments to be carried ou...

Page 21: ...to mount the control unit position the needle bar at t d c Put the control unit back on and tighten screws 5 slightly Activate engaging lever 6 manually so that roller lever 7 engages with control cam...

Page 22: ......

Page 23: ...Notes...

Page 24: ...ostfach 3020 D 67653 Kaiserslautern K nigstr 154 D 67655 Kaiserslautern Telefon 0631 200 0 Telefax 0631 172 02 Telex 45753 PFAFF D Gedruckt in der BRD Printed in Germany Imprim en R F A Impreso en la...