LD-16 Door Operator - Modernization Maintenance
October 2021 - 88420 v.1.0
83
Replace the Door Operator Control Board
(continued)
10. Verify door speeds and door operation.
a. Operate the doors either on Automatic Operation, or use the test buttons on top
of the door operator.
b. Adjust the speed or operation (as needed). See Speed Pattern Adjustment with
the Wittur Programming Tool (WPT) on page 65.
11. Adjust the kinetic and closing force of the new door board. See Closing Force
Adjustment - 30 lbs. Maximum on page 68.
12. Return the car to service.
Replace the Drive Belt
1. Remove the drive belt screws. See Figure 63.
2. Release the old belt from the bracket.
3. Shorten the new belt to match the length of the old belt.
4. Install the new belt. Loosen the screws of the diverting pulley, and use a screwdriver
to tighten the belt.
Figure 63 - Replace the Drive Belt
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