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Machine head
3.9.2 Setting the gear clearance of the hook drive
FIg. 35: Setting the gear clearance of the hook drive
(1) - Screw
(2) - Worm wheel
Proper setting
The gear clearance between worm and worm wheel should be as low as
possible. Free movement must be ensured all the same.
Each adjustment of the hook drive in axial direction (change of the needle
distance) requires that the gear clearance be re-adjusted.
To set the gear clearance of the hook drive:
1. Slightly turn the hook while checking the gear clearance.
2. Loosen the screw (3).
3. Loosen the screw (1).
4. Loosen the clamping screws of the worm wheel (2).
Service Instructions 745-35-10 B/745-35-10 F - 00.0 - 10/2017
WARNING
Risk of injury from moving parts!
Crushing possible.
Switch off the machine before you set the gear
clearance.
①
②
(3) - Screw
(4) - Socket
④
③
45
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