TM 5-2350-378-23&P
0006
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
STEP
5.
Check transducer T-3 hydraulic pressure at port 13R.
a.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 5, Item 5) on the HDC
control box.
b.
Using LINE UP or LINE DOWN button (Figure 5, Item 3), select V1 on the HDC display
(Figure 5, Item 2). Close V1 on the HDC display (Figure 5, Item 2) by selecting the CHANGE POSITION
button (Figure 5, Item 4) on the HDC control box.
c.
Have assistant start engine, move SPRUNG/UNSPRUNG lever to SPRUNG, and hold EJECTOR
CONTROL lever in BACK. Read transducer T-3 pressure on the HDC display (Figure 5, Item 1). If
hydraulic pressure is not within limits, continue with the following step.
d.
While assistant is still holding EJECTOR CONTROL lever in BACK, have assistant move right-hand
SUSPENSION CONTROL lever to RAISE. Read transducer T-3 pressure on HDC display
(Figure 5, Item 1). If hydraulic pressure is not within limits, main relief valve 13R requires adjustment.
e.
Release EJECTOR CONTROL and right-hand SUSPENSION CONTROL levers.
f.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 5, Item 5) on the HDC
control box.
1
2
3
4
5
T00409HDC
Figure 5. Hydraulic Diagnostic Center (HDC) Control Box.
CONDITION/INDICATION
Is pressure 3,950-4,050 psi (27,235-27,925 kPa)?
