TM 5-2350-378-23&P
0025
Table 4.
Possible Symptoms Of Failed HDC System Components - Continued.
HDC SYSTEM
POSSIBLE CONSEQUENCES
Solenoid Valve V20 - Shutoff valve - Ejector cylinder
STUCK OPEN:
extend to main accumulator (normally closed)
Undesired compensating pressure on ejector
cylinder extend.
Ejector will slowly extend due to leakage.
UNSPRUNG MODE:
Maximum suspension pressure 2000 psi
(13789.51 kPa).
Vehicle cannot be fully raised.
Solenoid Valve V21 - Shutoff valve - (manual)
No hydraulic fluid supply to 5/15 micron filters,
suspension, apron, winch, mainejectorfrom
one side of main pump.
Main pump output is cut off on one side, no flow.
No hydraulic fluid supply to main pump filters,
Solenoid Valve V22 - Shutoff valve - (manual)
suspension, winch, main ejector,apronfrom
one side of main pump.
Main pump output is cut off on one side, no flow.
Solenoid Valve V23 - Shutoff valve - (manual)
Cannot extend ejector cylinder or cannot retract
ejector cylinder.
Cannot dump load or cannot retract ejector to fill
load.
Cannot fold dozer blade.
END OF TASK
END OF WORK PACKAGE
0025-32
03/15/2011Rel(1.8)root(maintwp)wpno(M10001)