Spicer Drive Axles Service Manual Single Axles 2-Speed & Double Reduction - Manual (Page 27)

Adjust Ring Gear Backlash
IMPORTANT: Check backlash as
below and adjust if necessary.
described
1. Measure backlash with a dial indicator.
The indicator should be positioned on a
ring gear tooth, at the extreme heel end,
perpendicular to the tooth surface.
BACKLASH SPECIFICATIONS (Normal)
New Gearing:
Early Axle Series 15 through 18
Late Axle Models 15040T/P through 19055T/P . . . . . . . . . . . . . . . 0.006"-0.016" (0.15 -0.41 mm)
Early Axle Series 21 through 35
Late Axle Models 21065T/P through 35055T/P . . . . . . . . . . . . . . 0.008"-0.018" (0.20-0.46mm)
NOTE: For new gearing, check ring gear backlash after each shim change
and adjust if necessary.
Used Gearing: Reset to normal backlash recorded before disassembly.
To REMOVE backlash: Loosen the adjuster
on the teeth side of the ring gear several
notches. Tighten the opposite adjuster one
notch.
Return to adjuster on teeth side of ring gear
and tighten adjuster until it contacts the
bearing cup. Continue tightening the same
adjuster 2 or 3 notches. Recheck backlash.
To ADD backlash: Loosen the adjuster on
the teeth side of the ring gear several
notches. Loosen the opposite adjuster
one notch.
Return to adjuster on teeth side of ring gear
and tighten adjuster until it contacts the
bearing cup. Continue tightening the same
adjuster 2 or 3 notches. Recheck backlash.
27
ADJUSTMENT
Drive Axle
Overhaul
Section 3