Model > Z-8550A > K. Threading mechanism
REF-NO QTY RM CODE NAME OF PARTS
1 1 SA5084101 THREAD GUIDE
2 2 SA5124001 SCREW, FLAT M4
3 1 SA5085101 PRE-TENSION ASSY
4 1 SA5086001 THREAD GUIDE
5 1 S45563001 THREAD GUIDE TENSION STUD
6 1 SA2363001 PRE-TENSION BASE
7 2 144504001 THREAD GUIDE DISC
8 1 SA2358101 PRE-TENSION SPRING B
9 1 SA6167001 THREAD TENSION NUT
10 1 012500536 SET SCREW SOCKET (FT) M5X5
11 1 SA5088401 THREAD TENSION BRACKET ASSY
12 1 S50390101 TENSION STUD BRACKET
13 1 100402004 SET SCREW SM3.57
14 1 081014870 O RING S14
15 1 SA7988101 TENSION STUD
16 1 SA7990001 TENSION DISC PRESSE
17 1 SA7872001 SPRING TENSION
18 4 S48089000 TENSION DISC FELT
19 1 S48090001 ROTARY DISC
20 1 151148001 STOPPER ML
21 1 S48370001 TENSION NUT
22 1 SA5089101 THREAD TAKE-UP SPRING
23 1 SA1229101 SETSCREW (FT) M6X6
24 1 152873001 TENSION RELEASE PIN
25 1 SA2636001 THREAD RETAINER
26 1 012500536 SET SCREW SOCKET (FT) M5X5
27 1 SA5090001 TENSION RELEASE STUD
28 1 S29132001 SPRING, MICRO ADJUSTING
29 1 048040342 RETAINING RING E4
42 1 SA4233001 KNOB NUT STOPPER
  
 Option parts 
30 1 SA7439001 THREAD TENSION ASSY
31 1 S50390101 TENSION STUD BRACKET
32 1 S02620301 THREAD TAKE-UP SPRING
33 1 116922001 TENSION STUD
34 1 159805001 TENSION DISC PRESSER
35 1 081014870 O RING S14
36 1 SA7275001 TENSION SPRING
37 2 145446001 DISC TENSION
38 1 S12441001 WASHER
39 1 S31032001 TENSION NUT
40 1 100402004 SET SCREW SM3.57
41 1 SA7440001 TENSION RELEASE PIN
  • A. Machine body
  • B. Needle bar and thread take-up mechanism
  • C. Zigzag mechanism
  • D. Presser foot mechanism
  • E. Feed mechanism
  • F. Knee lifter mechanism
  • G. Quick reverse mechanism
  • H. Rotary hook mechanism
  • J. Lubrication
  • K. Threading mechanism
  • L. Bobbin winder mechanism
  • M1. Thread trimmer mechanism
  • M2. Thread trimmer mechanism
  • N. Tension release mechanism
  • P. Thread wiper mechanism
  • Q1. Control box and motor mechanism
  • Q2. Control box mechanism
  • Q3. Control box mechanism
  • R. Knee switch mechanism(Option parts)
  • S. Quick reverse switch mechanism
  • T. Presser foot lifting solenoid set(Option parts)
  • Z. Accessories
  • Ga1. Gauge parts list
  • Ga2. Gauge parts list
  • Ga3. Gauge parts list
  • Wa. Warning labels
  

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