TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 978 of 1176
TM 9-2320-361-24-1 0153 00 0153 00-4 FRONT SPRING REPLACEMENT (Contd) INSTALLATION NOTE Assistant will help with steps 1 through 5. 1. Ensure spring seat (12) is properly positioned on centering peg (20) and front axle (11). Place spring (2) on spring seat (12) so nut on bottom of center bolt (24) is in spring seat (12). 2. Using hydraulic jack, raise or lower axle (11) to align holes in spring (2) with holes in shackle (1) and hanger (7). 3. Install spring (2) on shackle (1) and hanger (7) with two pins (5). 4. Turn pins (5) to align pin retaining screw slots with holes in shackle (1) and hanger (7). 5. Install four screws (6) and new locknuts (3) on hanger (7) and shackle (1). 6. Install two lubrication fittings (4) on two pins (5). 7. Ensure center bolt (24) of spring (2) is still seated in spring seat (12). If not seated, realign spring (2) and spring seat (12). 8. Apply sealant around top mating surface of metal base of rubber bumper (10) and saddle (9), and seat bumper (10) base in saddle (9). 9. Install saddle (9) over spring (2) so center bolt (24) is in recess of rubber bumper (10) base. 10. Install two U-bolts (8) over saddle (9) and spring (2). 11. Position plate (13) on U-bolts (8) under axle housing (11) and install four new lockwashers (14) and nuts (15). Plate (13) must have shock absorber hole on wheel side of spring (2) facing rear of front axle housing (11) and angled down. Tighten nuts (15) 190–230 lb-ft (258–312 N•m). 12. Install retainer (22) and rubber bushing (21) on shock absorber piston rod (23) and extend through hole in plate (13). Ensure projecting lip of bushing (21) is seated in plate (13). 13. Install rubber bushing (19), retainer (18), and nut (17) on shock absorber piston rod (23). Tighten nut (17) until bushings (19) and (21) start to bulge. 14. Install jamnut (16) and tighten against nut (17). 15. Raise vehicle, remove two jack stands from frame (25), and place jack stands under front axle (11) to allow front wheel installation. 16. Lubricate shackle and hanger fittings (WP 0020 00). 17. Install right front wheel (WP 0186 00). 18. Connect battery ground cable (WP 0126 00). 19. Release parking brake and remove wheel chocks (TM 9-2320-361-10).