TM 10-4610-241-24
TO 40W4-13-42
3-69 TRUNNION REPLACE- (MODELS WPES-10 AND H-9518-1) - continued.
a.
Removal.
(1)
Using two hydraulic or screw-type jacks, support trunnion (1) at both ends.
WARNING
Trunnion is heavy and difficult to move. Two people are needed to lift it to prevent
personal injury or damage to the equipment.
(2)
Remove eight backup nuts (2), retaining nuts (3), screws (4) and two plates (5), attaching trunnion to springs
(6).
b.
(3)
Lower hydraulic jacks and remove trunnion (1) with attached parts from jacks.
(4)
Loosen four hose clamps (7) and remove four grease seals (8).
(5)
Remove two screws (9), clamps (10 and 11) and two seals (12) from end of trunnion (1).
(6)
Remove trunnion supports (13).
(7)
Remove spacers (14).
(8)
Remove grease fittings (15) from ends and underside of trunnion (1).
Installation.
(1)
(2)
(3)
Position spacers (14) and trunnion supports (13) on both ends of trunnion (1).
Position two jacks under trailer and lay trunnion on top of jacks.
Raise jacks, while alining trunnion supports (13) with trunnion mounting surfaces (bottom center of spring
assemblies (6).
(4)
Position plates (5) on top of springs (6) as illustrated. Aline mounting holes.
(5)
Install four screws (4) and retaining nuts (3) on each side.
(6)
Torque retaining nuts (3) to 85-105 pounds/foot and install eight backing nuts (2) against them.
(7)
Install clamps (10 and 11) and two seals (12) securing with screws (9) on both ends.
(8)
Install two grease fittings (15) on ends and underside of trunnion.
(9)
Wrap grease seal (8) over clamp halves (10 and 11) and spacer (14) and secure with hose clamps (7).
(10)
Lubricate trunnion in accordance with LO 10-4610-241-10.
(11)
Install two hub and drum assemblies. Refer to Paragraph 2-87.
WARNING
Trunnion is heavy. Two people are needed to lift it to prevent personal injury or damage
to equipment.
Change 1 3-377
