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 75 of 790
TM 5--2350--378--24&P
0005 00--16
USING THE HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM TO TROUBLESHOOT THE M9 HYDRAULIC SYSTEM --
Continued
0005 00
Table 4. HDC Control Box Connectors – Pin Designation Signal Names/Identification -- Continued
Connector J2: Mates with Umbilical Cable Connector W4P2
Pin Number
AWG
Signal Name
Description
Reference
Designator
Signal Source
Signal
Designation
Signal
Circuit No.
Signal Description
d
20
Left Suspension Port 2
Shutoff Valve No. 3
Actuator Power Return
V7
HDC Control Box
Left Suspension
Port 2 Shutoff
Valve No. 3
Actuator
1042
18 – 32VDC per
MIL--STD--1275
Power Return
e
20
Left Suspension Port 11
Shutoff Valve No. 4
Actuator Power
V8
HDC Control Box
Left Suspension
Port 11 Shutoff
Valve No. 4
Actuator
1043
18 – 32VDC per
MIL--STD--1275
f
20
Left Suspension Port 11
Shutoff Valve No. 4
Actuator Power Return
V8
HDC Control Box
Left Suspension
Port 11 Shutoff
Valve No. 4
Actuator
1044
18 – 32VDC per
MIL--STD--1275
Power Return
g
20
Left Bump Stop
Cylinder Extend
Shutoff Valve Power
V9
HDC Control Box
Left Bump Stop
Cylinder Extend
Shutoff Valve
1045
18 – 32VDC per
MIL--STD--1275
h
20
Left Bump Stop
Cylinder Extend
Shutoff Valve Power
Return
V9
HDC Control Box
Left Bump Stop
Cylinder Extend
Shutoff Valve
1046
18 – 32VDC per
MIL--STD--1275
Power Return
k
20
Right Bump Stop
Cylinder Extend
Shutoff Valve Power
V10
HDC Control Box
Right Bump Stop
Cylinder Extend
Shutoff Valve
1047
18 – 32VDC per
MIL--STD--1275
m
20
Right Bump Stop
Cylinder Extend
Shutoff Valve Power
Return
V10
HDC Control Box
Right Bump Stop
Cylinder Extend
Shutoff Valve
1048
18 – 32VDC per
MIL--STD--1275
Power Return
n
20
Left Hand Suspension
Lower Shutoff Valve
Power
V11
HDC Control Box
Left Hand
Suspension
Lower Shutoff
Valve
1049
18 – 32VDC per
MIL--STD--1275
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