Operation and maintenance manual

Section 100-0020
Chassis - Articulation and Oscillation Pivot
SM 1373 Rev 2 8-03
6
Note: Bearing assemblies (30) and spacers are a
matched set, never interchange cups, cones or
spacers between sets.
5. Using Extreme Pressure Lithium Complex No. 2
grease (23), pack bearing assemblies (30), including
end faces, and install bearings.
6. Place inner seal housings (33 & 35) temporarily in
position and secure with bolts (47) and washers (45).
Tighten bolts (47) to a torque of 16 Nm (12 lbf ft).
7. Using feeler gauges, as shown in Fig. 2, measure
the dimension between the inner pivot faces and seal
housings (33 & 35). Measure at 3 positions equally
spaced around seal housings and determine average
dimension, this is the size of shims (38) required.
8. Remove bolts (47), washers (45) and inner seal
housings (33 & 35).
9. Install shims (38) as calculated at Step 7, reinstall
inner seal housings (33 & 35) and secure with bolts
(47) and washers (45). Tighten bolts (47) to a torque
of 94 Nm (68 lbf ft).
Connecting Front and Rear Frames
1. Install spacer (39) in upper outer seal housing (32),
as noted on removal.
2. Smear bearing 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.
6. Smear lower pin (43) with Extreme Pressure Lithium
Complex No. 2 grease (23) and install through front
frame and bearing bores.
Note: It may be necessary to relieve binding between
the pin and pin bores by raising or lowering pivot/rear
frame assembly.
7. Apply Loctite 243 (49) to threads of bolt (48) and
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), large nut (42)
and washer (41). Tighten nut (42) to a torque of 1 425
Nm (1 050 lbf ft).
Final Assembly
1. Apply parking brake by turning the hex-head on the
parking brake actuator fully clockwise.
2. Remove lifting equipment from pivot/rear frame
assembly.
3. Remove stands or timbers from front frame.
4. Apply Loctite 270 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).
5. 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).
6. Remove plugs (28) from articulation bearing grease
ports and replace with lube fittings (27).
Note: Lube fittings (27) are stored on pad on side of
Fig. 2 - Determining Shim Thickness
SM - 008