Section 4: Assembly And Installation; Assembly; Drive Pinion; Differential Case And Ring Gear - Meritor MS-113 Maintenance Manual

Assembly and Installation Section 4
WARNING
To prevent serious eye injury, always wear safe
eye protection when you perform vehicle
maintenance or service.
Observe all warnings and cautions provided by
the press manufacturer to avoid damage to
components and serious personal injury.

Assembly

Drive Pinion

1. Apply Meritor specification 2297-W-4287,
2297-U-4519 or 076328-4 lubricant to the new
O-ring, carrier threads, O-ring bore, pinion
cage threads and the inner and outer bearings.
Figure 4.1. To obtain this lubricant, refer to the
Service Notes page on the front inside cover
of this manual.
Figure 4.1
1
2
3
1 PINION CAGE
2 O-RING
3 OUTER BEARING CUP
4 OUTER BEARING CONE
2. Install the new O-ring onto the pinion cage.
3. Install the shim onto the drive pinion.
4. Use a press to install the inner and outer
bearing cones onto the drive pinion.
Maintenance Manual MM-0230
Issued 07-02
5
4
7
6
5 DRIVE PINION
6 SHIM
7 INNER BEARING CONE
Copyright 2002
ArvinMeritor, Inc.
Assembly and Installation

Differential Case and Ring Gear

1. Use a press to install the bearing cones onto
both halves of the differential case.
CAUTION
Heat the ring gear before seating it onto the
differential case. Do not press a cold ring gear
onto the differential case. A cold ring gear will
damage the differential case because of the
tight fit.
2. Heat the ring gear. A maximum temperature of
340°F (170°C) can be applied at the gear web.
The temperature at the gear teeth must not
exceed 250°F (120°C). Wear safe clothing and
gloves while working with the hot ring gear.
3. Position the differential case on a workbench
with the bearing cone on top.
4. Place the ring gear over the differential case
immediately after the gear is heated.
If the ring gear does not fit easily on the
differential case: Heat the gear again.
5. Align the ring gear and differential case
capscrew holes. Rotate the ring gear as
necessary.
6. Use a feeler gauge to inspect for gaps
between the ring gear and the differential
case.
If the gap exceeds 0.001-inch (0.025 mm)
at more than three places with an arc
length greater than 1.0-inch (25.4 mm):
Inspect the differential case and ring gear
for wear or damage. Repair or replace parts
as necessary.
7. Turn the differential case over on the
workbench so that the bearing cone is on
the bottom.
8. Apply Meritor specification 2297-W-4287,
2297-U-4519 or 076328-4 lubricant to the
differential pinion shaft, thrust washers,
differential pinions and side gears. To obtain
this lubricant, refer to the Service Notes page
on the front inside cover of this manual.
Section 4
Page 17