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 77 of 790
TM 5--2350--378--24&P
0005 00--18
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
w
20
Right Hand Suspension
Raise Shutoff Valve
Power
V15
HDC Control Box
Right Hand
Suspension Raise
Shutoff Valve
1057
18 – 32VDC per
MIL--STD--1275
x
20
Right Hand Suspension
Raise Shutoff Valve
Power Return
V15
HDC Control Box
Right Hand
Suspension Raise
Shutoff Valve
1058
18 – 32VDC per
MIL--STD--1275
Power Return
y
20
Left Hand Suspension
Raise Shutoff Valve
Power
V16
HDC Control Box
Left Hand
Suspension Raise
Shutoff Valve
1059
18 – 32VDC per
MIL--STD--1275
z
20
Left Hand Suspension
Raise Shutoff Valve
Power Return
V16
HDC Control Box
Left Hand
Suspension Raise
Shutoff Valve
1060
18 – 32VDC per
MIL--STD--1275
Power Return
AA
20
Apron Cylinder Retract
Shutoff Valve Power
V17
HDC Control Box
Apron Cylinder
Retract Shutoff
Valve
1061
18 – 32VDC per
MIL--STD--1275
BB
20
Apron Cylinder Retract
Shutoff Valve Power
Return
V17
HDC Control Box
Apron Cylinder
Retract Shutoff
Valve
1062
18 – 32VDC per
MIL--STD--1275
Power Return
CC
20
Left Suspension Port 9
to Port 2 Shutoff Valve
No. 4 Actuator Power
V18
HDC Control Box
Valve Left
Suspension Port
9toPort2
Shutoff Valve
No. 4 Actuator
1063
18 – 32VDC per
MIL--STD--1275
DD
20
Left Suspension Port 9
to Port 2 Shutoff Valve
No. 4 Actuator Power
Return
V18
HDC Control Box
Valve Left
Suspension Port
9toPort2
Shutoff Valve
No. 4 Actuator
1064
18 – 32VDC per
MIL--STD--1275
Power Return
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