Operation and maintenance manual

Section 100-0020
Chassis - Articulation and Oscillation Pivot
SM 1373 Rev 2 8-03
10
pre-load from bearing cup and cone assemblies (8 & 9).
17. Remove nut (19) from rear of driveshaft (14), install
lockwasher (50) and reinstall nut (19).
18. Set up dial indicator with pointer positioned on rear
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.
19. 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) axial movement.
20. 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.
Connecting Front and Rear Frames
1. Install spacer (39) in upper bearing assembly (30) as
noted on removal.
2. Smear bearing assembly (30) and pin bores with
Extreme Pressure Lithium Complex No. 2 grease (23).
3. Attach suitable lifting equipment to pivot/rear frame
assembly. Lifting equipment must prevent pivot from
oscillating and be capable of pulling pivot/rear frame
assembly to align pivot bearing bores and front frame
pin bores. Raise lifting equipment to support pivot/rear
frame assembly.
4. Remove blocks from rear wheels and blocking from
pivot/rear frame assembly. Using lifting equipment, pull
pivot/rear frame assembly to align pivot bearing bores
and front frame pin bores. Block wheels and block
pivot/rear frame assembly to remain level and
stationary.
5. Freeze upper and lower pins (40 & 43) to ease
installation.
Note: It may be necessary to relieve binding between
the pin and pin bores by raising or lowering pivot/rear
frame assembly.
6. Smear lower pin (43) with Extreme Pressure Lithium
Complex No. 2 grease (23) and install through front
frame and bearing bores.
7. Apply Loctite 243 (49) to threads of bolt (48).
Secure lower pin (43) with bolt (48) and hardened
washer (44). Tighten bolt (48) to a torque of 73 Nm
(54 lbf ft).
8. Smear upper pin (40) with Extreme Pressure Lithium
Complex No. 2 grease (23) and install through front
frame and bearing bores.
9. Apply Loctite 243 (49) to threads of bolt (62). Secure
upper pin (40) with bolt (62), washer (61), washer (41)
and large nut (42). Tighten nut (42) to a torque of 1 425
Nm (1 050 lbf ft).
Final Assembly
1. Install parking brake assembly to mounting
brackets and secure with bolts, washers and nuts.
Refer to Section 170-0010, PARKING BRAKE AND
MOUNTING.
2. Apply parking brake by turning the hex-head on the
parking brake actuator fully clockwise.
WARNING
Tensioned spring on adjuster.
3. Remove lifting equipment from pivot/rear frame
assembly.
4. Remove stands or timbers from front frame.
5. Apply Loctite 270 to 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).
6. Align match marks and reconnect driveline to brake
yoke (18). Tighten capscrews to a torque of
153 Nm (113 lbf ft).
Note: Take extra care when handling drivelines as
chips, dents, burrs or deformity on any rotating mass
creates vibration and excessive wear during any
operation.
7. Align steering cylinder bores and mounting pin bores
on pivot. Install pins and secure with bolts and washers.
Tighten bolts to a torque of 73 Nm (54 lbf ft).
8. Connect hydraulic lines and electrical wiring as
noted on disassembly.