Section VI: MAINTENANCE OF HYDRAULIC LINES AND FITTINGS

9-2350-238-20-2

MAINTENANCE OF HYDRAULIC LINES AND FITTINGS

Section VI.

2-19.

GENERAL.

This

section

contains

instructions

repair

hydraulic

lines

and

fittings.

Repair

hydraulic lines and fittings consists of replacement of preformed packings, tube fitting locknuts,

Iockwashers, and defective sleeve spacers and washers. Pages 2-73 and 2-74 show exploded

views of typical hydraulic lines and fittings used on the vehicle, and give procedures for disas-

sembly and reassembly of fittings. For complete inspection procedures, refer to b. below. Refer

to TM 9-2350-238-24P-2 for ordering of authorized parts. Ensure hydraulic pressure is relieved

before

performing

any

disassembly

hydraulic

lines

and

fittings.

Inspect

all

unions,

nipples,

tees,

reducers,

plugs,

elbows,

and

parts

which

end

fittings

are used for thread damage, fractures, corrosion,

distortion, slivers, restrictions, sealing surface

scratches, or mutilation. Hex corners shall not be

rounded. Repair is by replacement of author-

ized parts (TM 9-2350-238-24P-2) which do not meet above criteria.

2-20. TUBE ELBOW TO TUBE FITTING.

DISASSEMBLY

Remove

tube

fitting

locknut

(1),

sleeve

spacer

(2), tube elbow (3), tube fitting locknut (4),

flat washer (5), and preformed packing (6).

REASSEMBLY

Install new preformed packing (6), flat washer

(5), new tube fitting locknut (4), tube elbow

(3), sleeve spacer (2), and new tube fitting

locknut (1).

2-21. TUBE TEE TO TUBE FITTING.

DISASSEMBLY

Remove tube fitting locknut (1), flat washer

(2), and preformed packing (3) before discon-

necting tube assemblies (4) from tube tee (5).

Remove tube tee (5).

REASSEMBLY

Install tube tee (5) in tube assembly (4)

before installing new preformed packing (3),

flat washer (2), and new tube fitting locknut

(1).

2-73