Replacing The Gauge - JUKI LH-3500 Series Instruction Manual

6-6. Replacing the gauge

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
2
7
A
6
2
3
4) Loosen two setscrews 2 of hook shaft saddle 1 , and move the hook shaft saddle.
(At ths tme, the hook drvng shaft gears move as well.)
5) Set the clearance between the needle and the blade pont of hook to 0.0 to 0.05 mm.
6) Tghten two setscrews 2 of the hook shaft saddle.
7) Tghten from screws No.  5 at the poston where the clearance between hook drvng shaft gears
3 and hook shaft saddles 1 s 0.5 mm. Then tghten screws No. 2 4 .
Sewng machne wth thread trmmer
• Make drvng arms 7 and 8 come n contact wth the drvng arm pn n the drectons of A and B
respectvely and tghten four setscrews 6 n connectng lnk (asm.) 9 .
Drive arm pin
9
Drive arm pin
3
4
5
2
1
B
6
2
8
• Move of the hook shaft saddle when replacing
the gauge
) Loosen screws No. 2 4 of hook drvng shaft
gears 3 .
2) Algn the needle wth the blade pont of hook.
3) Slghtly loosen screws No.  5 of hook
drvng shaft gears 3 so that the screws
does not come off the flat section of the hook
drvng shaft.
Sewng machne wth thread trmmer
• Loosen four setscrews 6 of connectng lnk (asm.)
9 .
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9