Steering Cylinder Assembly Repair (cont).

TM 10-3930-638-24&P

3-24. STEERING SYSTEM MAINTENANCE (cont)

d. Steering Cylinder Assembly Repair (cont).

REMARKS

ITEM

ACTION

LOCATION

STEP

INSPECTION (cont)

Repair nicks or scratches in cylinder with

Inspect

Cylinder (18)

medium grit emery cloth, polishing with

a rotary motion. Replace if cracked or

dented, if deeply grooved or scored, or

if threads damaged

REASSEMBLY

With seal lip facing piston side of gland

Install

a. New rod seal (13)

Gland (2)

Position with wiper lip away from gland,

Install

b. New wiper (12)

and press into gland until seated

Install

c. New back-up ring

(11) and O-ring

(10)

Install

Coat bore of gland with clean hydraulic

d. Gland (2)

oil and slide gland onto piston rod (3)

Piston (6)

Install

In narrow groove of piston (6)

a. New O-ring (9)

CAUTION

Make certain O-ring (9) and seal ring (8) are not rolled when seated.

Install

Over O-ring (9)

b. New seal ring (8)

In wide groove of piston

c. New wear ring (7)

Install

Position recess in piston toward piston rod

Install

d. Piston (6)

(3), and slide assembled piston onto

piston rod

Piston and

In soft jawed vise

Piston rod (3)

a. Piston rod (3)

clamp

Install

On cap screw (4)

b. Flat washer (5)

Install and

Tighten to 150-180 pounds foot torque

c. Cap screw (4) with

washer (5)

tighten

Lubricate

Coat with clean hydraulic oil

d. Piston seals and rings

(7, 8 and 9)

CAUTION

Be careful not to cut or damage O-rings and seals in the following

step.

e. Piston (6) with

Install

Remove piston rod from vise and carefully

piston rod (3)

guide piston and rod into cylinder (18)

3-188