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 131 of 319

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TM 5-2350-262-20-3

To block 25

YES

from block 8

To block 13

NO

YES

YES

NO

11

Perform suspension pressure test.

Is hydraulic pressure at least 3,900 psi (26,891 kPa)?

FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE

(CONTINUED)

7

YES

9

Stop engine; relieve hydraulic pressure.

Remove all test equipment and connect hoses.

10

Perform main pump flow test.

Does ejector fully extend in less than 32 seconds and

apron raise fully in less than 15 seconds?

12

Replace direction control valve bank.