RG55T-R Operation • Service • Maintenance
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Maintenance
Clutch Spider Coupler
Inspect the Polyurethane Spider Coupler (7) through the
vented cover (6) daily for signs of any abnormal wear.
Check the gearbox coupler clamping bolt (8) for correct
torque (40-45 ft lbs) which could allow spider to walk
out of pocket. There should be no or a very slight gap
observed between spider coupler and mating sides
as viewed through the top of the clutch shield screen.
Replace the Polyurethane Spider (RED) if excessive wear
is observed.
Alignment
Parts / Tool List
• 3/8 socket w/short Extension (to remove clutch cover)
• Feeler gage & straight-edge
• 7/16” - 13 tap
• 3/8 HEX and M16 socket
• Optional shim kit (if needed)
Procedure
1. There should be an equal gap between the coupling
and drive dogs (~0.020”). If a large or uneven gap is
observed proceed to step 3. If gap appears within spec,
proceed to step 2.
2. Check the alignment between the coupler and the gear
box. If they do not align, proceed to step 3.
3. If gearbox needs aligned, follow this procedure to ensure
correct shaft alignment.
4. Remove the coupler hub from the gearbox and clean
hub threads with a 7/16” - 13 tap.
5. Install coupler onto the gear box shaft but do not tighten
the locking bolt. Tightening locking bolt on gearbox may
misalign the coupler on the splines - this will lead to
NOTICE
Description: It is crucial that the coupler hub is
properly aligned and shimmed else premature
wear may occur to the spider. These instructions
are applicable to replacement or adjustment of the
spider coupler.
6
8
7
