Section 100-0020 Chassis - Articulation and Oscillation Pivot SM - 008 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. Fig. 2 - Determining Shim Thickness Note: It may be necessary to relieve binding between the pin and pin bores by raising or lowering pivot/rear frame assembly.
Note: Bearing assemblies (30) and spacers are a matched set, never interchange cups, cones or spacers between sets. 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). 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). 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). 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. Final Assembly 8. Remove bolts (47), washers (45) and inner seal housings (33 & 35). 1. Apply parking brake by turning the hex-head on the parking brake actuator fully clockwise. 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). 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). 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). 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). 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. 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 SM 1373 Rev 2 8-03 6