JUKI LBH-1702 Manual page 45

Adjustment Procedures
™ When loosening the timing belt, loosen 1 and 2, press the
timing belt with fingers in the direction of (e mark), tighten 1
in the state that the belt is slack, and fix with 2.
™ When stretching the timing belt, loosen 1 and 2, press the
timing belt with fingers in the direction of (e mark), tighten 1
in the state that the fingers sre slowly returned, and fix with
2.
Results of Improper Adjustment
™ If the timing belt tension is low, the
belt runs around and may interfere
with the machine frame.
™ Set the time to loosen and stretch
again the timing belt to 4 (four) hours
or less.
If the belt is left in the slack state for
a long period of time, it absorbs
moisture and the belt tension is
deteriorated. So, be careful.
45
− −