Fig.
No.
Part No.
Description
GC20688-DC
GC20688-BDC
Remarks
B01
H003002050
Nut
1
2
M5
B02
HF930C8001
Thead hook
1
2
B03
HF929C8001
Thread tension stud
1
2
B04
HA112B0693
Thread tension discs
1
2
B05
HA710B0672
Tension spring
1
2
B06
HA710B0671
Tension adjusting nut
1
2
B07
HF907C8001
Thread tension stud
2
B08
HF917C8001
Thread guide
1
1
B09
H3221B6817
Thread tension releasing pin
2
1
B10
H3221B6811
Shoulder screw
2
2
B11
H7316B8001
Screw
2
2
B12
HF925C8001
Thread guide
1
B13
H7322B8001
Screw
2
2
B14
H7316B8001
Screw
2
2
B15
HF905C8001
Tension plate
1
1
B16
HF923C8001
Rod
1
1
B17
HF924C8001
Sping
1
1
B18
HF915C8001
Tension release plate
1
1
B19
HF916C8001
Thread guide
1
1
B20
HA310B0705
Tension discs
4
4
B21
HA310B0702
Tension release discs
2
2
B22
HA115B0703
Tension spring
1
B23
HA115B7010
Stopper
2
2
B24
HA310B0701
Tension nut
2
2
B25
H431040040
Screw
1
1
M4×4
B26
HF936C8001
Thread tension post
1
1
B27
H431050050
Screw
1
1
M5×5
B28
H4805C8001
Thread tension stud
1
1
B29
H4804C8001
Screw
1
1
B30
H32481BD21
Plate complete
1
2
B31
H4713C8001
Thread take-up spring
1
1
B32
H32481B721
Thumb nut
1
1
B33
H003045050
Nut
1
1
M5
B34
H003002050
Nut
1
1
M5
B35
HF918C8001
Release lever
1
1
B36
H007013050
E-type stop ring 5
1
1
B37
HF919C8001
Bolt
1
1
B38
HE60C58001
Hook
1
1
B39
HF908C8001
Spring
1
1
B40
HF909C8001
Block
1
1
B41
H005001040
Washer
1
1
B42
H415040080
Screw
1
2
M4×8
B43
HF927I8001
Washer
1
1
B.THREAD TENSION REGULATOR MECHANISM
— 26 —
Summary of Contents for GC20688-BDC
Page 24: ...A ARM BED MECHANISM 21...
Page 28: ...B THREAD TENSION REGULATOR MECHANISM 25...
Page 31: ...C NEEDLE BAR AND THREAD TAKE UP MECHANISM 28...
Page 34: ...D PRESSER FOOT MECHANISM 31...
Page 37: ...E UPPER FEED LIFTING ROCK SHAFT MECHANISM 34...
Page 40: ...F STITCH REGULATOR MECHANISM 37...
Page 43: ...G FEEDING AND FEED LIFTING HOOK SHAFT MECHANISM 40...
Page 46: ...H HOOK SADDLE MECHANISM 43...
Page 50: ...I OIL LUBRICATION MECHANISM 47...
Page 53: ...J ACCESSORIES 50...
Page 55: ...K PNEUMATIC CONTROL MECHANISM 52...
Page 57: ...L KNIFFE MECHANISM 54...