TM 5-3990-263-13&P
0031
MALFUNCTION
WINCH IN Directional Control Valve is Faulty.
CORRECTIVE ACTION
CAUTION
Electrical power must be shut OFF from circuit before continuity can be checked.
Failure to comply with this caution may result in damage to test equipment or
electrical system.
NOTE
Digital controller and cab control box are not repairable, therefore, it is necessary
to test digital controller and cab interface wiring harnesses, switches, solenoids,
and other components to identify possible faults other than digital controller and
digital cab controller.
1.
Set multimeter to ohms position.
2.
Place negative (-) probe of multimeter on position 1 of WINCH IN solenoid (Figure 9).
FLATWASHER
SCREW
J3
POSITION 1
J4
POSITION 1
POSITION 2
POSITION 2
WINCH IN
WINCH OUT VALVE AND
VALVE AND SOLENOID
SOLENOID
Figure 9. WINCH IN Valve and Solenoid.
3.
Place positive (+) probe of multimeter on position 2 of WINCH IN solenoid (Figure 9). Check
multimeter for continuity.
a.
If continuity is not present, replace WINCH IN directional control valve.
(TM 9-2320-435-10 or TM 9-2320-425-10)
b.
If continuity is present, proceed to next Malfunction.