DISASSEMBLY (cont) - TM-9-2320-285-24-20424

TM 9-2320-285-24-2

3-42.

FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)

a. Hydraulic Pump (cont).

STEP

LOCATION

ITEM

ACTION

REMARKS

DISASSEMBLY (cont)

Remove

Turn pump body (6) upside

(cont)

(15)

down, then tap against

block of wood to loosen

bearings

NOTE

If bearings (15) are extremely tight and difficult to remove, it indicates operation with dirty hydraulic oil.

Remove

Turn cover (14) upside down,

(16)

then tap against block of

wood to loosen bearings

Retaining ring

Remove and

Use retaining ring pliers

(17) discard

NOTE

Exercise care not to damage seal recess in following step.

m. Seal (18)

Remove

Use bearing puller

CLEANING

WARNING

Dry cleaning solvent (P-D-680), used to clean parts is toxic and flammable. Wear protective goggles and

gloves and use only in a well ventilated area. Avoid contact with skin, eyes, and clothes and don't breathe

vapors. Do not use near open flame or excessive heat and don't smoke when using it. Failure to do so

could cause serious injury. If you become dizzy while using cleaning solvent, get fresh air and medical

attention immediately. If contact with skin or clothes is made, flush with large amounts of water. If contact

with eyes is made, wash eyes with water and obtain medical aid immediately.

3-418