TM-5-2350-378-24-P

HYDRAULIC DIAGNOSTIC CENTER (HDC) SUPPORTING ARMORED COMBAT EARTHMOVER (ACE), M9

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

TM-5-2350-378-24-P - Page 242 of 790

TM 5--2350--378--24&P

0013 00--17

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

Continued

0013 00

MAIN PUMP FLOW TEST

NOTE

An insufficient flow of hydraulic oil is indicated if ejector requires

more than 32 seconds to fully extend or if apron requires more

than 15 seconds to fully raise.

Start engine and allow engine to idle (750--850 rpm).

With ejector fully retracted, hold EJECTOR CONTROL lever in FORWARD, and note

length of time required for ejector to fully extend.

With apron in full down position, move APRON CONTROL lever to UP, and note length

of time required for apron to fully raise. Lower apron.

Stop engine; relieve hydraulic pressure.