Operation and maintenance manual

Section 100-0020
Chassis - Articulation and Oscillation Pivot
SM 1373 Rev 2 8-03
4
33. Install parking brake disc protective guard (if fitted)
and secure with bolts, washers and nuts. Tighten nuts
to a torque of 73 Nm (54 lbf ft).
34. Start engine, raise body, lower body safety prop
and lower body.
35. Remove wheel blocks.
ARTICULATION COMPONENTS
Numbers in parentheses refer to Fig. 1, unless
otherwise specified.
Note: The following procedures assume that only
components associated with articulation require repair.
Note: It is essential that the grease used for articulation
components is Extreme Pressure Lithium Complex No. 2
(23), as specified in Section 300-0020, LUBRICATION
SYSTEM.
Note: Tighten all fasteners without special torques
specified to torques listed in Section 300-0080,
STANDARD BOLT AND NUT TORQUE
SPECIFICATIONS.
WARNINGS
To prevent personal injury and property
damage, be sure wheel blocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
When necessary to drive out or drive on
components during disassembly/assembly, be
sure to use a soft drift to prevent property
damage and personal injury.
Disconnecting Front and Rear Frames
Note: The front and rear frames can be separated
sufficiently to permit disassembly/assembly of the
articulation components without disconnecting
hydraulic lines or electrical wiring.
1. Position the vehicle on a level work area and apply
parking brake.
2. Raise body and install body safety prop to secure
body in partially raised position.
3. Shut down engine and block all wheels securely.
4. Identify the relationship of the driveline caps to the
21. Tighten nut (19) until end play on driveshaft (14)
can just be felt. Take dial indicator reading of end play.
Tighten nut (19) until end play on driveshaft (14) is 0.05
- 0.15 mm (0.002 - 0.006 in).
Note: One flat on nut (19) turned is equivalent to
0.025 mm (0.001 in).
22. When correct end play is obtained, remove dial
indicator and secure nut (19) by bending the first
available lockwasher (50) tab into nut (19). Recheck
end play.
23. Install parking brake disc on brake yoke (18) and
secure with bolts and washers. Tighten bolts to a
torque of 73 Nm (54 lbf ft).
24. Install parking brake assembly to mounting
brackets and secure with bolts, washers and nuts.
Refer to Section 170-0010, PARKING BRAKE AND
MOUNTING.
25. Apply parking brake by turning the hex-head on the
parking brake actuator fully clockwise.
26. Apply Loctite 638 to the threads of capscrews used
to mount driveline to brake yoke (18). Align match
marks and install driveline. Tighten capscrews to a
torque of 153 Nm (113 lbf ft).
27. Apply Loctite 638 to the threads of capscrews used
to mount driveline between transmission yoke and front
yoke (17). Align match marks and install driveline.
Tighten capscrews to a torque of 153 Nm (113 lbf ft).
28. Remove bolts (7), washers (20), gasket (5) and
cover plate (6) from side of oscillation hub to gain
access to filler/level hole plug (25) on pivot assembly
(1). Remove filler/level plug (25).
29. Add SAE 80W - 90 E. P. gear oil (24) through filler/
level hole in pivot assembly (1) until the oil is level with
the bottom of filler/level hole.
30. Remove plug (25) from underside of oscillation hub
to drain the cavity between the oscillation hub and
pivot assembly (1) of any oil that entered while filling
the driveshaft bearing housing.
31. Install plug (25) into filler/level hole on pivot
assembly (1). Install gasket (5) and cover plate (6) on
side of oscillation hub, secure with bolts (7) and
washers (20).
32. Install plug (25) into cavity drain port on underside
of oscillation hub.