Spicer Tandem Drive Axles Service Manual D__R440, 460, 480, D_R461, 462, 463, 521, 581, 601, 651, 652, 653 - Manual (Page 91)

87
Wheel Differential Lock
Wheel Differential Lock
Air Shift Unit Overhaul
Disassemble Unit
1. Remove capscrews, lock washers, cover and gasket
from housing. Drain lubricant.
2. Remove bolts, lock nuts, cover at piston end of hous-
ing. Remove o-ring.
During the following procedure, the piston will pop out of
housing under spring pressure. Exercise caution to prevent
possible injury.
3. Remove lock nut, flat washer, and piston from push
rod. Remove o-ring and felt oilers from piston.
4. Remove compression spring and piston stop from
bore of shift unit housing.
5. Remove clevis pin, then remove push rod from shift
unit housing. Remove o-ring from push rod.
6. Remove actuating lever and pin from shift unit hous-
ing. Do not disassemble actuating lever.
1 - O-ring
2 - Actuating lever assembly
3 - Piston
4 - Felt oilers
5 - Compression spring
6 - Shift unit housing
7 - Piston rod
8 - Clevis pin
CAUTION
1
3
4
5
6
7
8
2
1 - Compression spring
2 - Piston
3 - O-ring
1- Actuating lever
2 - Shift fork swivel pin
3 - O-ring
4 - Actuating lever pin
5 - Bearing
3
2
1
2
3
4
5
1