Installation and Maintenance Manual: RLVAC
Published February 2022
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unthreading the tensioner brackets from the takeup screws. Both screws must be turned by the
same amount to keep the takeup carriage square inside the drive. See Figure 31: General
Arrangement, Belt Under Roller AC, Screw Takeup Drive, Sheet 1 of 1 in Appendix 2: General
Arrangement Drawings for details and exploded views.
3. Check that both routing rollers and the drive snub roller are set square to the drive frame and
approximately centered within their slots. Adjust if necessary before the belt is installed. Using the
routing shown in Figure 13: Screw Takeup Drive Belt Routing, thread the belt through the drive.
The drive pulley will not turn easily with most gearmotor selections, so the belt will need to be
“pushed” rather than “pulled” past the pulley by providing slack just before the pulley.
4. Do not tension the belt at this stage. Refer to section 5.12.1 for belt tensioning and reassembly
instructions.
Fi
gure 13: Screw Takeup Drive Belt Routing
Figure 12: Screw Takeup Drive Overview