TM-5-2350-377-14-P
ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) SUPPORTING THE HYDRAULIC BLADE FOLDER-TRACK TENSIONER (HBF-TT)
TM-5-2350-377-14-P - Page 88 of 335
TM 5-2350-377-14&P
OIL FLOW TEST
NOTE
Have suitable container ready to catch oil.
•
Disconnect HYDR-MAN-IN-9 hose (4) from elbow (3) at port P on track and blade manifold (5).
Cap elbow (3).
•
While holding open end of hose (4) in suitable container, have assistant start engine.
Check
for free flow of hydraulic oil from hose (4).
•
Stop engine; relieve hydraulic pressure.
Connect hose (4) to elbow (3).
Perform M9 ACE HBF-TT
electrical troubleshooting, refer to WP 0008 00-18.
SPOOL AND POPPET VALVE CHECKS
NOTE
To test spool valve, extend and retract track adjusting
cylinders. Track adjusting cylinders can be extended
individually but cannot be retracted individually. However,
they can be retracted simultaneously.
•
To test spool valve, retract and extend track adjusting cylinders.
•
Have assistant start engine.
•
To retract left cylinder, lift manual override spool valve Z2 (2).
•
To retract right cylinder, lift manual override spool valve Z1 (1).
•
To extend both cylinders, depress manual override spool valves
Z1 (1) and Z2 (2)
simultaneously.
•
Stop engine; relieve hydraulic pressure.
0008 00
0008 00-47
1
2
3
4
5
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