TM 9-2330-386-14&P
5-11 TRUNNION TUBE (CONT) .
(5) Lower floor jacks until U-bolts (7) clear springs (5) on both sides of
semitrailer.
NOTE
Axles will support spring assemblies.
(6) Remove trunnion hub (4).
(7) Remove trunnion hub (6) with two U-bolts (7) from trunnion
tube (12).
(8) Remove two U-bolts (7) from trunnion hub (6).
(9) Remove bushing (8) and washer (9) from trunnion tube (12).
(10) Remove two lock nuts (10) and capscrews (11) from trunnion hanger (13)
(trunnion hangers are welded to the frame).
(11) Repeat steps (6) through (10) on other side of semitrailer.
(12) Clean trunnion tube (12). If necessary, use sandpaper to remove rust.
WARNING
Trunnion tube weighs 100 pounds. Do not lift the trunnion
tube without assistance.
(13) With a helper, remove trunnion tube (12) from trunnion hangers (13).
b. Installation.
(1) Clean new trunnion tube (12).
NOTE
M e a s u r e from end of the trunnion tube (12) to the
trunnion hanger (13) to determine if the trunnion tube is
centered.
(2) With a helper, install trunnion tube (12) in trunnion hangers (13). Be
sure trunnion tube is centered evenly.
(3) Install two washers (9) and bushings (8), one on each end of trunnion
tube (12).
NOTE
Before tightening lock nuts (10), make sure trunnion tube
(12) iS centered.
(4) Install two capscrews (11) and locknuts (10) on each trunnion hanger
(13). Torque lock nuts to 300 lb-ft.
5-18