DURKOPP ADLER 540-100-1, Manual Complete

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16. Stretching the drive belts
The drive-belts are maintenance-free and should not be restretched.
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Dismount handwheel and belt protection.
Stretching of the drive belt motor-arm shaft:
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Loosen screws 1.
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Tighten the belt by shifting the motor.
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Tighten screws 1.
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Mount the belt protection and handwheel.
Stretching of the long drive and hook shaft belt:
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Unscrew the belt tightener 3.
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Loosen screw 2.
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Press the upper belt pulley unit to the right with the belt tightener 3.
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Tighten screw 2.
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Screw the belt tightener 3 on again.
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Mount the belt protection and handwheel.
Hint
Check the hook setting and readjust it, if necessary.
(chapter “Hook and needle bar”)
45
3
3
1
3
2