Maintenance
Up/Down System
5
5-13 60HDdoc081208 Maintenance
5.10 Up/Down System
Adjust the up/down chain tension as needed. Measure chain tension with the head all the
way to the top of the vertical mast. Find the chain adjusting bolt at the bottom of the mast.
Use the adjustment nut to adjust the bolt until the center of the chain can be deflected
3/4” (1.9cm) with a 5 lb. (2.3 KG) deflection force.
CAUTION! Do not over-tension the chain. Over-tensioning
the chain may lead to early failure of the gear reducer.
1. Adjust the motor belt tension as needed. To do this, loosen the motor mounting bolts
and turn adjustment bolts clockwise or counterclockwise evenly, until the belt is properly
tensioned. Tighten the motor mounting bolts.
FIG. 5-4
750
Adjustment Nuts
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