Hydraulic Cylinders.

TM 9-2320-285-24-2

3-42.

FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)

d. Hydraulic Cylinders.

This task covers:

a. Removal

Inspection/Repair

b. Disassembly

Reassembly

c. Cleaning

Installation

INITIAL SETUP

Tools

Personnel Required

No. 1 Common Organizational Maintenance

Automotive Repairer MOS 63H

Tool Kit

Socket wrench set, 3/4 inch drive

References

Torque wrench, 3/4 inch drive,

LO 9-2320-285-12

600 pounds foot

(M878A1 Lubrication Order)

Hand hammer

Lubricating kit

Equipment Condition

Safety glasses

Paragraph

Condition Description

Brass drift

Vehicle parked on level

Materials/Parts

surface, engine off, and

Cleaning solvent

Item 1, Appendix C

parking brake applied.

Clean cloths

Item 2, Appendix C

Fifth wheel boom elevated ful-

Chassis grease

Item 3, Appendix C

ly and supported with hoist.

Medium grit

2-78b(2)

Hydraulic lines and fittings

emery cloth

Item 4, Appendix C

removed from hydraulic

Degreasing

cylinder to be removed.

solvent

Item 18, Appendix C

Hydraulic oil

Item 22, Appendix C

Stud lock

compound

Item 23, Appendix C

Seal kit

FSCM 89642 PN 272-2175

STEP

LOCATION

ITEM

ACTION

REMARKS

REMOVAL

NOTE

Before performing step 1 below, mark rod cap (3) and mating end of rod (12) using center punch and

hammer to ensure correct alignment during reassembly.

Hydraulic

Four nuts (1)

Remove

Support rod cap (3)

cylinder,

and lock

bottom

washers (2)

Rod cap (3)

Remove

Four capscrews

Remove

(4)

3-443