REASSEMBLY - TM-10-3930-638-24-P0690

TM 10-3930-638-24&P

3-24. STEERING SYSTEM MAINTENANCE (cont)

c. Hydraulic Pump Repair (cont).

REMARKS

ACTION

ITEM

LOCATION

STEP

INSPECTION (cont)

Back plate (4)

Inspect

Replace if machined face scored, pitted

or eroded, or if threads damaged

Inspect

Body (5)

Replace if machined faces scored, pitted

or eroded, or if inside diameter of gear

pocket scored, pitted, or worn to less

than 2.107 inches

REASSEMBLY

Front

a. New O-ring (8)

Install

In groove of front plate

plate (3)

Position and

b. New seal (15)

With open part of "V" section down, tuck

install

seal (15) into grooves in front plate

c. New gaskets (14

Install

Press into seal (15)

and 13)

Position

d. Two new balls

In bores of front plate

(12) and springs

(11)

CAUTION

In the following step, be sure that diaphragm (10) fits inside rim

of seal (15). Also make sure that coils of springs (11) are not

wedged between diaphragm (10) and front plate (3).

e. Diaphragm (10)

Position and

Position bronze face up, and press into

install

raised rim of seal (15) and against back-up

gasket (13)

Shafts

a. Key (1)

Position

in keyway on shaft (6)

(6 and 7)

b. Gears (18 and 20)

Lubricate and

Dip gears in clean hydraulic oil and position

position

on shafts (6 and 7)

c. Retaining rings

Install

Use snap ring pliers

(17 and 19)

d. Shafts (6 and 7)

Lubricate and

Dip bushing area of shafts in clean hydrau-

install

lic oil and position in bushings (25) of

front plate (3)

Body (5)

a. Two dowel pins

Install

(21)

b. Body (5)

Lubricate and

Apply thin coat of heavy grease to both

install

machined faces of body (5). Position

body with small drilled hole in one of the

cavities toward pressure side of pump, and

with half moon port cavities facing away

from front plate (3). Slip body over gears

(18 and 20) and onto front plate (3)

3-182B CHANGE 2