TM 5-2350-378-23&P
0019
WINCH AND RIGHT-HAND WHEEL CONTROL INOPERATIVE - Continued
DECISION
YES - Verify problem is solved.
NO - Go to Step (3).
STEP
3.
Perform main hydraulic pump pressure test using HDC.
WARNING
Before performing any troubleshooting in bowl, move ejector forward and engage
ejector lock. Failure to comply may result in severe injury or death to personnel.
Ensure left main hydraulic pressure inhibit valve V22 is fully opened prior to starting
vehicle. A fully or partially closed valve will cause immediate high pressure. Failure
to comply may result in damage to equipment and injury to personnel.
a.
Stop engine; relieve hydraulic pressure.
b.
Reset all HDC solenoid valves by selecting RESET VALVES button (Figure 6, Item 5) on HDC control
box.
c.
Disable ejector by manually closing the ejector inhibit ball valve V23 (Figure 7, Item 2) on DCV bank.
d.
Using LINE UP or LINE DOWN button (Figure 6, Item 3), select V1 on HDC display (Figure 6, Item 2).
e.
Close V1 on HDC display (Figure 6, Item 2) by selecting CHANGE POSITION button (Figure 6, Item 4)
on HDC control box.
f.
Ensure left main hydraulic pressure inhibit valve V22 (Figure 7, Item 1) is fully opened.
g.
Have assistant start engine and allow engine to idle (750-800 rpm).
h.
Slowly close left main hydraulic pressure inhibit valve V22 (Figure 7, Item 1), until transducer T-4 on HDC
display (Figure 6, Item 1) reaches 3,950-4,050 psi (27,235-27,925 kPa).
i.
Open left main hydraulic pressure inhibit valve V22 (Figure 7, Item 1) fully.
j.
Using LINE UP or LINE DOWN button (Figure 6, Item 3), select V1 on HDC display (Figure 6, Item 2).
k.
Open V1 (Figure 6, Item 2) on HDC display by selecting CHANGE POSITION button (Figure 6, Item 4)
on HDC control box.
0019-6
03/15/2011Rel(1.8)root(tswp)wpno(T00017)
