Section VII. RETURN LINE OIL FILTER AND THROTTLE VALVE

TM 5-3820-239-15

MEC 3820-239-15/6-16

Lubrication fitting, 1/8 in.

Body

O-ring

Screw, cap, hex-hd, 5/l6-18 x 7/8 in.

Lever

Spindle

Spring stop pin

Disc

Washer, flat, 21/32 ID x 2 OD x 1/8 in. thk

Disc spring

Lever spring

Cap

Screw, cap, hex-hd, 1/2-13 x 1 l/2 in. (4)

Figure 6-16. Propelling control

valve, exploded view.

Section VII. RETURN LINE OIL FILTER AND THROTTLE VALVE

b. Throttle Valve. To remove throttle valve,

6-43. General

disconnect fittings (fig. 1-5) and remove the

This section contains repair instructions for

throttle valve from the nipple on hydraulic

the return line oil filter and throttle valve. The

valve mounting bracket.

return line oil filter filters the hydraulic fluid

before it returns to the hydraulic reservoir

6-45. Disassembly

(fig. 1-5). The throttle valve is the on-off con-

trol for the hydraulic pump assembly, which

a. Return Line Oil Filter. Disassemble re-

furnishes the hydraulic power to position the

turn line oil filter in the numerical sequence

booms and drill guide (fig. 1-5).

as illustrated on figure 6-17. Discard filter ele-

ment (5, fig. 6-17) and gasket (6).

6-44. Removal

a. Return Line Oil Filter. To remove return

b. Throttle Valve. Disassemble throttle

valve in the numerical sequence as illustrated

line oil filter disconnect fittings (fig. l-5)

from boom base area.