TM 10-3835-223-13&P
Table 4-2. Unit Troubleshooting - cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. REEL TURNS CLOCKWISE WHEN CCW IS SELECTED.
Step 1. Check for reversed hose connections on hydraulic motor.
Reconnect hydraulic hoses.
Step 2. Check for reversed hydraulic motor hose connections on valve station.
Reconnect hydraulic hoses.
Step 3. Check for reversed valve station electrical connectors L5 and L6.
Reconnect electrical connectors.
Step 4. 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 ofcontrol
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).
8. REEL TURNS COUNTERCLOCKWISE WHEN CW IS SELECTED.
See MALFUNCTION 7.
9. REEL TURNS VERY SLOWLY.
Step 1. Observe drive wheel during operation. If drive wheel slips on hose reel, inspect for grease, dirt,
or fuel on drive wheel.
Clean drive wheel.
Step 2. Inspect for worn or damaged drive wheel.
Replace drive wheel (para. 4-27).
Step 3. With power off and hydraulic pressure relieved, manually rotate hose reels. Reels should turn
smoothly without rubbing on frame or binding.
4-12
