Tooth Play Of The Hook Drive - Duerkopp Adler 745-22 Service Instructions Manual

11.4 Tooth Play of the Hook Drive

The tooth play between worm and worm wheel should be as little as
possible. Ease of movement must, however, remain assured.
After every adjustment of the hook drive in axial direction the tooth
play must be reset.
1
2 3 4
Caution Risk of Injury !
Turn the main switch off.
Set the tooth play only with the main switch turned off.
–
Remove oil baffle 3 after loosening the mounting screws.
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Loosen screw 4.
–
Loosen screw 1 slightly.
–
Loosen the clamping screws of the worm wheel 3 slightly.
–
Slide the worm wheel 3 axially.
The clearance between the worm wheel 3 and the inner side of the
hook housing must be 0.3 mm.
The clearance must, at the right hook housing, be at the right and,
at the left hook housing, at the left of the worm wheel.
–
Measure the clearance with a feeler gauge.
–
Set the tooth play by turning the eccentric bushing 5.
The tooth play between worm wheel and worm should be small but
still perceptible.
Increase tooth play: Turn bushing 5 upward
Decrease tooth play: Turn bushing 5 downward
–
Check the looping stroke (see Chapter 11.5) and the clearance
hook point - needle (see Chapter 11.7) and correct, if necessary.
–
Tighten screws 1 and 4.
–
Attach oil baffle 3 again.
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