TM-5-2350-378-23-P
ARMORED COMBAT EARTHMOVER (ACE), M9; HYDRAULIC DIAGNOSTIC CENTER
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JUNE 2012
TM-5-2350-378-23-P - Page 80 of 644
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
STEP
7.
Check transducer T-4 hydraulic pressure at port 13L.
a.
Stop engine and relieve hydraulic pressure.
b.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 10, Item 5) on the HDC
control box.
c.
Using LINE UP or LINE DOWN button (Figure 10, Item 3), select V1 on the HDC display
(Figure 10, Item 2). Close V1 on the HDC display (Figure 10, Item 2) by selecting the CHANGE POSITION
button (Figure 10, Item 4) on the HDC control box.
d.
Have assistant start engine, move the SPRUNG/UNSPRUNG lever to SPRUNG, and hold EJECTOR
CONTROL lever to BACK.
e.
Read transducer T-4 hydraulic pressure on the HDC display (Figure 10, Item 1).
f.
If hydraulic pressure is not within limits, continue with following steps.
g.
While still holding EJECTOR CONTROL lever in BACK, have assistant move left-hand SUSPENSION
CONTROL lever to RAISE.
h.
Read transducer T-4 hydraulic pressure on the HDC display (Figure 10, Item 1).
T00415HDC
5
4
3
2
1
Figure 10.
Hydraulic Diagnostic Center (HDC) Control Box.
TM 5-2350-378-23&P
0006
0006-10
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