Pinion position – Spicer Drive Axles Service Manual Wheel Reduction Drive Axles (EA-50) User Manual

Page 19

PINION POSITION

19.

9. Install pinion nut and washer. Use torque multiplier

and torque pinion nut to 900-1,200 Lb-Ft (1,220-
1,627 N-m).

Pinion assembly is now ready to be installed into carrier
housing.

Ring gears and pinions are supplied in matched sets
only. Matching numbers on both the pinion and ring
gear are etched for verification. If a new gear set is
being used, verify the numbers of each pinion and ring
gear before proceeding with assembly.

When a new gear set is being installed, use a micrometer
to measure the thickness of the old pinion position shims.
Measure each shim separately and add together to get
the total thickness of the original build-up.

NOTE: If old shims ar

TE: If old shims ar

TE: If old shims are bent or m

e bent or m

e bent or mutila

utila

utilattttted the

ed the

ed they should

y should

be r

be replaced.

eplaced.

If a new gear set is being used, notice the (+), (–) or "0"
etching on both the old and the new pinions, and adjust
the thickness of the shims to compensate for the
difference of these two figures (as shown in table on next
page).

For example, if the old pinion is etched +2, and the new
pinion is –2, subtract .004 in. from the thickness of the
original shims used to position the pinion.

If either or both the pinion gears are etched beyond the
values on this chart, follow the same procedure to
establish correct pinion position.

For example if the old pinion is etched –12 and the new
pinion is etched +9, add .021 inch to the thickness of the
original shims.

After determining the new total build up of pinion position
shims, round the figure off to the nearest multiple of .005
inch.

Use the Pinion Setting Chart on the next page as a
guideline to set the pinion.

Pinion Assembly Complet

Pinion Assembly Completeeeee