TM 10-3835-223-13&P
Table 4-2. Unit Troubleshooting - cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. REEL WILL NOT TURN (PUMP OPERATES) - cont.
Step 4. Check operation of hydraulic cylinder. Cylinder must press drive wheel tightly against hose
reel hub.
See MALFUNCTION 6 , Step 2.
Step 5. Check for defective control cable.
a. Remove control cable from power pack (para. 4-13).
b. Set switch S3 to MED. Using multimeter, check for continuity between pins G and J of
control cable plug. If continuity does not exist, replace control cable (para. 4-13).
c. Set switch S3 to LOW. Using multimeter, check for continuity between pins B and J of
control cable plug. Ifcontinuity does not exist, replace control cable (para. 4-13).
Step 6. Tag and disconnect hydraulic hoses from hydraulic motor. Manually rotate drive wheel and
check for jammed hydraulic motor and/or drive wheel.
Replace defective hydraulic motor/drive wheel components (para. 4-27).
If malfunction cannot be corrected replace valve station (para. 4-17).
11. REEL TURNS ONE DIRECTION ONLY.
Step 1. Check for loose electrical connectors L5 and L6 on valve station.
Tighten electrical connectors.
Step 2 Check for defective control cable.
a. Remove control cable from power pack (para. 4-13).
b. Depress and hold RUN switch (S1).
c. Set switch S2 to CW. Using multimeter, check for continuity between pins e and J of control
cable plug. If continuity does not exist, replace control cable (para. 4-13).
d. Set switch S2 to CCW. Using multimeter, check for continuity between pins H and J of
control cable plug.
If continuity does not exist, replace control cable (para. 4-13).
4-14
