TM 9-2320-361-34 13-4. FIFTH WHEEL MAINTENANCE (Contd) c. Assembly 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 13-18 Install pinion gear (16) on fifih wheel housing (18) with screw (20), spacer (4), washer (5), and new locknut (6). Install jamnut (29) and handle (28) on yoke (30). Install yoke (30) on pinion gear (16) with screw (27), washer (1), and new locknut (2). Aline hole in compression arm (33) with hole in fifth wheel housing (18). Install compression arm (33) and two coupler jaws (31) in fifth wheel housing (18) with two bushings (38). Install bushing (21) and cam (22) on fifth wheel housing (18) with new lockwasher (24) and screw (25). Place spring (3) on plunger rack (7). Install screw (19), spacer (15), and plunger rack (7) on fifth wheel housing (18). NOTE Add washers as needed to obtain proper height on plunger rack latch. Latch must set level with latch on plunger rack. Install plunger rack latch (14), bracket (11), three washers (10), two new locknuts (9), and new safety wire (8) on screw (19) and stud (17). Install new cotter pin (13) in fifth wheel housing (18) with eye of cotter pin (13) facing back of fifth wheel housing (18). WARNING Eye protection must be worn when removing or installing springs under tension. Failure to do so may result in injury to personnel. Install spring (12) on plunger rack latch (14) and cotter pin (13). Install spring (32) on two coupler jaws (31). Install two washers (37), new lockwashers (36), screws (35), and lubrication fittings (34) on two bushings (38). Tighten screws (35) 150-200 lb-ft (203-271 N.m). Install new cotter pin (23) in fifth wheel housing (18). Install spring (26) on handle (28) and cotter pin (23).
