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 162 of 319

3-127

TM 5-2320-262-20-3

NO. 1 RIGHT

ACTUATOR SHOWN

3

1

4

2

FRONT ACTUATOR PORT 9 PRESSURE TEST

NOTE

Have suitable container ready to catch oil.

•

Stop engine; relieve hydraulic pressure.

•

Disconnect NO 1 SPNSN UNIT-9 hose (1) from elbow (2).

•

Connect tee (3) and pressure measuring device (4) between NO 1 SPNSN UNIT-9 hose

(1) and elbow (2) at port 9 on No. 1 actuator (5).

•

Have assistant start engine and move SPRUNG/UNSPRUNG lever to SPRUNG mode.

Read pressure measuring device (4).

•

Stop engine; relieve hydraulic pressure.

Remove tee (3) and pressure measuring device

(4) and connect NO 1 SPNSN UNIT-9 hose (1) to elbow (2) on port 9.

FRONT ACTUATOR PORT 3 PRESSURE TEST

NOTE

Have suitable container ready to catch oil.

•

Disconnect NO 1. SPNSN UNIT-3 hose (1) from port 3 on NO. 1 actuator (2).

•

Connect tee (3) and pressure measuring device (4) between NO 1 SPNSN UNIT-3 hose

(1) and port 3 on No. 1 actuator (2).

•

Start engine.

Have assistant move SUSPENSION CONTROL lever to RAISE.

Read

pressure measuring device (4).

Notify Direct Support maintenance.

3

2

1

4

5

NO. 1 RIGHT

•

Stop engine; relieve hydraulic pressure. Remove test equipment and connect lines.