Allied Systems W8L Service Manual page 151

NOTE: Adding or subtracting shims from these
retainers will affect pinion-to-bevel gear backlash.
See step 24.
25. Use dial indicator to check pinion-to-bevel gear
backlash. Backlash should be 0.006-0.014 in.
(0.152-0.356 mm). If less than 0.006 in. (0.152 mm)
remove shims from right-hand bearing retainer as
required. Add same amount to left-hand retainer to
maintain endplay (preload). RH and LH shims are
not interchangeable.
NOTE: Prior to checking pinion-to-bevel gear backlash
place the clutch shaft in a normal operating position by
forcing the ring gear away from the pinion gear laterally
along the clutch shaft. Check the gear contact as shown
in Step 5 in subsection of PTO Shaft Reassembly and
Installation.
26. Remove both bearing retainers and install the cast
iron seal rings. Ensure seal rings can freely rotate
after installation.
27. Install a new O-ring on the bearing retainer. Lube
bore and O-ring. Coat the shim packs with Loctite.
Carefully install both bearing retainers with their
fi nalized shim packs.
28. Apply air pressure to oil port on each end of
the shaft and check clutch piston for movement.
When air pressure is applied piston should move
approximately 1/8 inch (3 mm) to 3/19 inch (5 mm).
29. Tighten capscrews on both bearing retainers to 75
ft-lbs (10 kg-m).
30. Install clutch crossover hoses as shown and tighten
securely. Twist pressure hose to route away from
bevel gear. Lock in rotated position.
Section 4
4 - 55