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 65 of 790
TM 5--2350--378--24&P
0005 00--6
USING THE HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM TO TROUBLESHOOT
THE M9 HYDRAULIC SYSTEM -- Continued
0005 00
m. If the solenoid valves portion of the HDC Control Box start--up LCD display does not appear as shown in
Table 1, refer to Troubleshooting (WP 0022 00), for troubleshooting procedures to aid in isolating a fault
or problem in the HDC System.
The HDC Control Box default solenoid valve display (all solenoid valves in the OFF position) should be as shown
in Table 1.
Table 1. Default Solenoid Valve LCD Display
VALVE NO.
PWR
/
POSITION
V1
OFF
/
OPEN
V2
OFF
/
OPEN
V3
OFF
/
OPEN
V4
OFF
/
OPEN
V5
OFF
/
OPEN
V6
OFF
/
OPEN
V7
OFF
/
OPEN
V8
OFF
/
OPEN
V9
OFF
/
OPEN
V10
OFF
/
OPEN
V11
OFF
/
OPEN
V12
OFF
/
OPEN
V13
OFF
/
OPEN
V14
OFF
/
OPEN
V15
OFF
/
OPEN
V16
OFF
/
OPEN
V17
OFF
/
OPEN
V18
OFF
/
CLOSED
V19
OFF
/
CLOSED
V20
OFF
/
CLOSED
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