TM 5-2350-378-23&P
0015
HYDRAULIC OIL OVERHEATS - Continued
CONDITION/INDICATION
Can ejector relief valve observed transducer T-2 hydraulic pressure be adjusted to 2,950-3,050 psi
(20,340-21,030 kPa)?
DECISION
YES - Verify problem is solved.
NO - Replace DCV bank (TM 5-2350-262-20).
STEP
20.
Perform ejector cylinder internal leakage test using HDC.
a.
Reset all HDC solenoid valves by selecting RESET VALVES button (Figure 26, Item 5) on HDC control
box.
b.
Using LINE UP or LINE DOWN button (Figure 26, Item 3), select V1 on HDC display
(Figure 26, Item 2).
c.
Close V1 on HDC display (Figure 26, Item 2) by selecting CHANGE POSITION button
(Figure 26, Item 4) on HDC control box.
d.
Start engine and have assistant hold EJECTOR CONTROL lever in BACK position for one minute.
e.
Mark position of ejector at side of hull and continue to hold valve lever in BACK position for one more
minute.
f.
Check position of ejector while still holding valve lever in BACK position.
g.
If ejector has moved forward more than 1/2 in. (12 mm), the ejector cylinder is leaking excessively.
h.
If ejector has moved aft more than 1/2 in. (12 mm), solenoid valve V1 on HDC primary manifold is leaking.
i.
Reset all HDC solenoid valves by selecting RESET VALVES button (Figure 26, Item 5) on HDC control
box.
2
1
3
4
5
T01341HDC
Figure 26. Hydraulic Diagnostic Center (HDC) Control Box.
03/15/2011Rel(1.8)root(tswp)wpno(T00013)
