TM-5-2350-262-20-3

ARMORED COMBAT EARTHMOVER (ACE), M9

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL; VOLUME 3 OF 3; HYDRAULIC TROUBLESHOOTING TEST PROCEDURES

TM-5-2350-262-20-3 - Page 216 of 319

TM 5-2350-262-20-3

3-181

PORT 8 CHECK VALVE FLOW TEST

NOTE

Have suitable container ready to catch oil.

•

Stop engine; relieve hydraulic pressure.

Disconnect LH 4 SPNSN UNIT-8 hose (1) from

check valve (2) at port 8 on No. 4 left actuator (3).

Plug end of LH 4 SPNSN UNIT-8 hose

(1).

•

Connect drain hose to check valve (2).

•

While holding end of drain hose in container, have assistant start engine and move

SPRUNG/UNSPRUNG lever to SPRUNG mode.

Observe for steady flow of oil from drain

hose.

Vehicle should raise.

•

Stop engine; relieve hydraulic pressure and connect line.

CHECK VALVE INSPECTION

•

Inspect check valve (2).

Ensure arrow (4) points away from actuator (3).

•

Connect LH 4 SPNSN UNIT-8

hose (1) to check valve (2) at port 8.

NO. 4 LEFT

ACTUATOR