CLEANING - TM-9-2320-285-24-20453

TM 9-2320-285-24-2

1342. FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)

d. Hydraulic Cylinders (cont).

STEP

LOCATION

ITEM

ACTION

REMARKS

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.

Compressed air must not exceed 30 psi. Wear safety glasses when drying parts with compressed air. Failure to do

so could cause serious injury to eyes and possible blindness. If you hurt your eyes or if a foreign object is blown into

your eyes, seek medical attention immediately.

All parts

Clean

Use cleaning solvent P-D-680;

dry with compressed air

INSPECTION/REPAIR

Rod (12)

Inspect

Replace if bent, deeply

grooved, or scored. Remove

nicks or scratches with

medium grit emery cloth

polishing with a rotary

motion

Cylinder (8)

Inspect

Replace if deeply grooved,

scored, or damaged. Remove

nicks or scratches ins ide

cylinder with medium grit

emery cloth polishing with

a rotary motion

Bearing (9)

Inspect

Replace if worn, cracked, or

split

All other parts

Inspect

Replace if cracked, split,

grooved, or otherwise

damaged

3-447