TM 10-3835-223-13&P
Table 4-2. Unit Troubleshooting - cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. REEL (POWER PACK) WILL NOT OPERATE WHEN RUN SWITCH IS DEPRESSED - cont.
b. If continuity does not exist, replace power unit (para. 4-18).
2. DRIVE WHEEL (CYLINDER) MOVES TO LEFT REEL WHEN RIGHT REEL IS SELECTED.
Step 1. Check for reversed hydraulic hose connections at power pack.
Connect hoses to correct couplings.
Step 2. Check for reversed hose connections at hydraulic cylinder.
Reconnect hoses to hydraulic cylinder.
Step 3. Check for crossed hydraulic hoses at valve station manifold.
Reconnect hydraulic hoses to valve station manifold.
Step 4. Check for defective control cable.
a. Remove control cable from power pack (para. 413).
b. Depress and hold RUN switch (S1).
c. Set switch S4 to LEFT. Using multimeter, check for continuity between pins F and J of
control cable plug. If continuity does not exist, replace control cable (para. 4-13).
d. Set switch S4 to RIGHT. Using multimeter, check for continuity between pins C and J of
control cable plug.
If continuity does not exist, replace control cable (para. 4-13).
Step 5. Check for cross connection of valve station electrical connectors L1 and L2.
Reconnect electrical connectors L1 and L2.
If malfunction cannot be corrected replace valve station (para. 4-17).
3. DRIVE WHEEL (CYLINDER) MOVES TO RIGHT WHEN LEFT REEL IS SELECTED.
See MALFUNCTION 2.
4-9
