3.5 ELEVATOR UNIT
Pre- Stretch Percentage Change
1) Switch the power off and apart the handle cover
2) Push the safety lock inner, and then use the handle to adjust the pre-stretch
percentage. Take up the handle to get the high pre – stretch percentage or
put down to get the low pre – stretch.
SAFETY LOCK
LOW-RATIO
HIGH-RATIO
3) To make sure a safe and correct operation, please check the below items:
1. The mark line is back to its home position.
SAFETY LINE
SAFETY LOCK
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