Operation and maintenance manual

Section 100-0020
SM 1373 Rev 2 8-03
3
5. Remove nut (19), thrust washer (16) and brake yoke
(18) from driveshaft (14). The distance from the end of
the bearing cone (8) to the end of the spline should be
approximately 57 mm.
6. Install driveshaft (14) through the housing.
7. Using a suitable driver, install front bearing
assembly cone (9) on driveshaft (14).
8. Using a suitable driver, install seals (15) into ends of
housing, ensuring that they butt hard against abutment
shoulders.
9. Install brake yoke (18) on rear of driveshaft (14) until
it butts against bearing assembly cone (9).
10. Install front yoke (17) on driveshaft (14) until it
butts against bearing assembly cone (9).
11. Install 'O' rings (29 & 51) to thrust washer (16) and
install assembly on front of driveshaft (14).
12. Install front nut (19) temporarily on front of
driveshaft (14).
13. Install 'O' rings (29 & 51) to thrust washer (16) and
install assembly on rear of driveshaft (14).
14. Install nut (19) and lockwasher (50) to rear threads
of driveshaft (14). Prevent driveshaft (14) from turning
by restraining brake yoke (18).
15. Tighten nut (19) and bend at least one lockwasher
(50) tab into nut (19). If required back off nut (19) until
the first available tab lines up with a slot in the nut (19).
16. Tighten nut (19) at front of driveshaft (14) to a
torque of 250 Nm (180 lbf ft) to seat bearing cup and
cone assemblies (9 & 8).
17. Chap driveshaft (14) at both ends with a hide-faced
hammer. Re-torque nut (19) to 250 Nm (180 lbf ft).
18. Back off nut (19) four flats, and chap rear end of
driveshaft (14) with a hide-faced hammer to remove
pre-load from bearing cup and cone assemblies (9 & 8).
19. Remove nut (19) from front of driveshaft (14),
install lockwasher (50) and reinstall nut (19).
20. Set up dial indicator with pointer positioned on end
face of driveshaft (14). Push and pull on parking brake
disc to move driveshaft (14) backwards and forwards,
remembering to rotate shaft at the same time to obtain
an accurate reading. Note dial indicator reading.
22. Remove and discard seal (15) from driveshaft (14).
23. If bearing replacement is required, use a suitable
puller or drift to remove rear bearing assembly cone
(9) from driveshaft (14).
24. Reinstall nuts (19) on driveshaft (14) to protect
the threads.
Inspection
1. Clean all parts with a suitable solvent and let dry.
DO NOT spin bearings with compressed air. Place
bearings on a clean surface, cover with a lint free
cloth and allow to dry.
2. Check bearing assemblies cups and cones (8 & 9)
for wear or damage. Renew as necessary.
Note: If either bearing assembly cup or cone (8 or 9)
need replacing, they must be replaced as a set.
3. Inspect splines of driveshaft (14) and yokes
(17 & 18) for nicks, burrs or excessive wear. Replace
if wear is excessive or splines are nicked. Burrs may
be removed with a fine file or medium India stone.
4. Check yokes (17 & 18) for damage in region
polished by oil seal lip; even slight damage in this
area can cause leakage. Very slight marks may be
polished out with fine emery cloth but it is essential
that polishing marks are parallel to the seal lip.
5. Replace all seals and 'O' rings with new parts.
Assembly and Installation
1. If removed, use a suitable driver and install
retaining rings (31) into housing, ensuring that they
butt hard against abutment shoulders.
2. Using a suitable driver, install front and rear
bearing assembly cups (8) into housing, ensuring that
they butt hard against abutment shoulders.
3. Lightly oil both bearing assembly cones (9) with SAE
80W - 90 E. P. gear oil (24).
4. Using a suitable driver, install rear bearing assembly
cone (9) on rear end of driveshaft (14). Temporarily install
brake yoke (18), thrust washer (16) and nut (19) to
driveshaft (14). Tighten nut (19) until the yoke (18)
bottoms out on the driveshaft (14).
Chassis - Articulation and Oscillation Pivot