Pfaff 918 Instruction Manual
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- Instruction manual (98 pages) ,
- Adjustment manual (54 pages) ,
- Service manual (43 pages)
Related Manuals for Pfaff 918
Summary of Contents for Pfaff 918
- Page 1 918 U INSTRUCTION MANUAL 938 U This instruction manual applies to machines from the following serial numbers onwards: # 2 671 899 296-12-18 997/002 Betriebsanleitung engl. 06.12...
- Page 2 As an alternative to the internet download the adjustment manual can also be ordered in book form under part no. 296-12-18 998/002. 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.
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Page 3: Table Of Contents
Adjustment lever for zigzag stitch and needle position ............16 Reverse-feed key / Stitch length adjustment wheel ............16 Adjustment wheel for multi-stitch and zigzag stitch (only on the PFAFF 918 U and 938 U) ..17 Lever for raising presser foot ....................17 Pedal ............................ - Page 4 Setting the zigzag stitch and the stitch position ..............31 Adjusting the stitch length ....................31 Adjusting the multi-stitch or the zigzag stitch (only on the 918 U and 938 U with fl ange motor) ..............32 .08.01 Changing from zigzag stitch to multi-stitch ................32 .08.02...
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Page 5: Safety
Safety Safety Directives The machine has been constructed in accordance with the requirements listed in the EC Declaration of Conformity and the Declaration of Incorporation. In addition to this Instruction Manual, also observe all generally accepted, statutory and other regulations and legal requirements and all valid environmental protection regulations! The regionally valid regulations of the social insurance society for occupational accidents or other supervisory organizations are to be strictly adhered to! General notes on safety... -
Page 6: Safety Symbols
● It is the obligation of the user to ensure that none of the safety mechanisms are removed or deactivated. ● It is the obligation of the user to ensure that only authorized persons operate and work on the machine. Further information can be obtained from your PFAFF agent. -
Page 7: Operating And Specialist Personnel
Safety Operating and specialist personnel Operating personnel .05.01 Operating personnel are persons responsible for the equipping, operating and cleaning of the machine as well as for taking care of problems arising in the sewing area. The operating personnel is required to observe the following points and must: ●... -
Page 8: Danger Warnings
Safety Danger warnings A working area of 1 m must be kept free both in front of and behind the machi- ne, so that easy access is possible at all times. Never put your hands or fi ngers in the sewing area during sewing! Danger of injury by the needle! While setting or adjusting the machine do not leave any objects on the table nor in the needle plate area! Objects may be trapped or fl... -
Page 9: Proper Use
Proper use The PFAFF 918 is a high-speed zigzag sewing machine with bottom feed and large hook. The PFAFF 918 U is a high-speed zigzag sewing machine with bottom feed, a large hook and mechanical shift from zigzag to 3-stitch zigzag. -
Page 10: Specifi Cations
Height (above table): ....................ca. 300 mm Max. stitch length PFAFF 918-6/01: ......................4,5 mm PFAFF 938-6/01; -6/27: ....................2,5 mm Max. speed ◆ PFAFF 918: ......................5000 Sti/min ◆ PFAFF 938-6/01; -771/05-6/27: ................5500 Sti/min ◆ PFAFF 938-34/01 R: .................... 6000 Sti/min Max. stitch with PFAFF 918: ........................ -
Page 11: Pfaff 918 U, 938 U
Width: ........................ca. 180 mm Height (above table): ....................ca. 300 mm Max. stitch length: ......................2,5 mm Max. stitch with PFAFF 918 U: ....................... 10,0 mm PFAFF 938 U: .........................6,0 mm Max. speed: ◆ With 33 mm needle bar stroke: ................4500 spm Connection data: Operating voltage: ................ -
Page 12: Disposal Of Machine
Disposal of Machine Disposal of Machine ● Proper disposal of the machine is the responsibility of the customer. ● The materials used for the machine are steel, aluminium, brass and various plastic materials. The electrical equipment comprises plastic materials and copper. ●... -
Page 13: Transportation, Packing And Storage
Transportation, packing and storage Transportation, packing and storage Transportation to customer‘s premises The machines are delivered completely packed. Transportation inside the customer‘s premises The manufacturer cannot be made liable for transportation inside the customer‘s premises nor to other operating locations. It must be ensured that the machines are only transported in an upright position. -
Page 14: Explanation Of Symbols
Explanation of symbols Explanation of symbols In this instruction manual, work to be carried out or important information is accentuated by symbols. These symbols have the following meanings: Note, information Cleaning, care Lubrication Maintenance, repairs, adjustment, service work (only to be carried out by technical staff) -
Page 15: Controls
Controls Controls Main switch ● The machine is switched on or off by tur- ning the main switch 1. Fig. 7 - 01 Keys on the machine head (only on machines with fl ange motor) ● As long as key 1 is pressed during sew- ing, the machine sews in reverse. -
Page 16: Adjustment Lever For Zigzag Stitch And Needle Position
Controls Adjustment lever for zigzag stitch and needle position ● The zigzag stitch adjustment lever 1 is used for adjusting the width of the zig- zag stitch. ● To change the position of the adjustment lever, the locking lever 2 must be pressed against the adjustment lever 1. -
Page 17: Adjustment Wheel For Multi-Stitch And Zigzag Stitch (Only On The Pfaff 918 U And 938 U)
Controls Adjustment wheel for multi-stitch and zigzag stitch (only on the PFAFF 918 U and 938 U) Before sewing begins, make sure that adjustment wheel 1 is locked in position! Only switch over when the machine is at a standstill! Danger of machine damage! ●... -
Page 18: Pedal
Controls Pedal Neutral position +1 = Sewing -1 = Raise presser foot (on machines with -910/..) -2 = Trim thread (on machines with -900/..) Fig. 7 - 07 Adjustment lever of the underedge trimmer -771/05 ● By pulling and turning lever 1 towards "+", the underedge trimmer is switched on and the knife stroke set. -
Page 19: Installation And Commissioning
Installation and commissioning Installation and commissioning The machine must only be mounted and commissioned by qualifi ed personnel! All relevant safety regulations are to be observed! If the machine is delivered without a table, it must be ensured that the frame and the table top which you intend to use can hold the weight of the machine and the motor. -
Page 20: Mounting The Upper V-Belt Guard / Fitting The Machine Cover
Installation and commissioning Mounting the upper V-belt guard / Fitting the machine cover .01.02 ● Slide the left and right halves of the V-belt guard into place with the slots behind the heads of screws 1 and 2. ● Screw screw 3 with distance bush 4 into threaded hole 5. -
Page 21: Fitting The Fl Ange Motor
Installation and commissioning Fitting the fl ange motor .01.04 Fig. 8 - 04 ● Loosen screws 1 and remove toothed belt wheel 2 from the motor shaft 3. ● Attach bearing plate 4 to the motor 5 with screws 6 as shown in Fig. 8-04. ●... -
Page 22: Fitting The Tilt Lock
Installation and commissioning Fitting the tilt lock .01.06 ● Screw on tilt lock 1, provided in the ac- cessories, using screw 2. Do not operate the machine without tilt lock 1! Danger of crushing between sewing head and table top! Fig. -
Page 23: Commissioning
Installation and commissioning Commissioning Fig. 8 - 08 Fig. 8 - 08a ● Examine the machine, in particular the electric cables and pneumatic connection tubes for any damage. ● Clean the machine thoroughly and then oil it., see Chapter 10 Care and Maintenance! ●... -
Page 24: Switching The Machine On/Off
Installation and commissioning Switching the machine on/off ● Switch the machine on, see Chapter 7.01 Main switch. Basic position of the machine drive unit ( On machines with EcoDrive and control unit P40 ED) ● Switch on the machine. ● Press the TE/speed key twice to select the input mode. ●... -
Page 25: Mounting/Connecting The Start Inhibitor
Installation and commissioning Mounting/connecting the start inhibitor Fig. 8 - 09 ● For machines delivered without a table, the plate 1 from the accessories should be mounted under the table top, so that the switch lug 2 is resting on plate 1 when the sewing head is in an upright position. -
Page 26: Preparation
Preparation Preparation All regulations and instructions in this Instruction Manual are to be observed! Special attention is to be paid to the safety regulations! All preparation work is only to be carried out by appropriately trained personnel. Before all preparation work, the machine is to be separated from the electricity supply by removing the plug from the mains or switching off the On/Off switch! Inserting the needle Switch off the machine! -
Page 27: Winding The Bobbin Thread, Adjusting The Thread Tension
Preparation Winding the bobbin thread, adjusting the thread tension Fig. 9 - 02 ● Place an empty bobbin 1 onto bobbin shaft 2. ● Thread the bobbin in accordance with Fig. 9-02 and wind it anti-clockwise around bobbin 1 a few times. ●... -
Page 28: Removing / Inserting The Bobbin Case
● Insert bobbin case 1 until you feel it click into place. Fig. 9 - 03 Threading the bobbin case, adjusting the thread tension PFAFF 938 and 938 U without thread trimmer .04.01 ● Insert bobbin 1 into bobbin case 2. ● Guide the thread through the slot under spring 3. -
Page 29: Pfaff 938 And 938 U With Thread Trimmer
Preparation PFAFF 938 and 938 U with thread trimmer .04.02 ● Insert bobbin 1 into bobbin case 2. ● Guide the thread through the slot under spring 3. ● Adjust the thread tension by turning screw 4. When the thread is pulled the bobbin 1 must rotate in the di- rection of the arrow. -
Page 30: Threading The Needle Thread / Adjusting The Needle Thread Tension
Preparation Threading the needle thread / Adjusting the needle thread tension Fig. 9 - 07 Switch off the machine! Danger of injury due to unintentional starting of the machine! ● Thread the needle thread as show in the above illustration. ●... -
Page 31: Setting The Zigzag Stitch And The Stitch Position
Preparation Setting the zigzag stitch and the stitch position ● Set the zigzag stitch width by turning the zigzag lever 1. ● To vary the adjustment press catch 2 against zigzag lever 1. ● The setting can be read from scale 3. ●... -
Page 32: Adjusting The Multi-Stitch Or The Zigzag Stitch
Preparation Adjusting the multi-stitch or the zigzag stitch (only on the 918 U and 938 U with fl ange motor) Changing from zigzag stitch to multi-stitch .08.01 Before sewing begins, make sure that adjustment wheel 1 is locked in position! Only switch... -
Page 33: Adjusting The Multi-Stitch Or The Zigzag Stitch
Preparation Adjusting the multi-stitch or the zigzag stitch (on the 918 U and 938 U with an external motor) Changing from zigzag stitch to multi-stitch .09.01 Before sewing begins, make sure that adjustment wheel 1 is locked in position! Only switch... -
Page 34: Care And Maintenance
Care and maintenance Care and maintenance Servicing and maintenance intervals Cleaning ............daily, several times by continuous operation Checking the oil level (hook oil tank) ..............once a years Checking the oil tank(zigzag eccentric lubrication) ......daily, before operation Checking/adjusting the air pressure .......... daily, before each operation Cleaning the air fi... -
Page 35: Lubricating The Hook
(see arrow in Fig. 10-03). Return the machine to its upright position with both hands. Danger of crushing between machine head and table top! We recommend PFAFF sewing machine oil. 280-1-120 144. -
Page 36: Oiling The Zigzag Drive
● Fill in oil up to the top marking 2. ● Clean the surface of cover 5, the case and the seal. ● Replace cover 5 and tighten screws 4. We recommend PFAFF sewing machine oil, part no. 280-1-120 146. -
Page 37: Checking/Adjusting The Air Pressure
Care and maintenance Checking/adjusting the air pressure ● Before operating the machine, always check the air pressure on gauge 1. ● Gauge 1 must show a pressure of 6 bar. ● If necessary adjust to this reading. ● To do so, pull knob 2 upwards and turn it so that the gauge shows a pressure of 6 bar. -
Page 38: Wearing Parts
A detailed parts list for the complete machine is included with the accessories. In case of loss, the parts list can be downloaded from the internet address www.pfaff-industrial.com/pfaff/de/service/downloads As an alternative to the internet download the parts lists can also be ordered in book form under part no. - Page 39 Wearing parts PFAFF 938 91-265 225-91 91-265 227-05 (3x) 91-167 595-05 91-174 507-05 91-168 144-05 91-140 945-05 91-167 598-41 11-174 912-15 (2x) 91-175 690-05 91-265 227-05 (3x) 91-009 026-05 91-002 134-05 91-000 250-15 91-167 597-91 91-000 390-05 99-137 151-45 91-171 049-05...
- Page 40 PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern Phone: +49 - 6301 3205 - 0 Fax: +49 - 6301 3205 1386 E-mail: info@pfaff-industrial.com Printed in Germany...