TM 10-3835-223-13&P
Table 4-2. Unit Troubleshooting - cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. REEL TURNS VERY SLOWLY - cont.
a. If defective, replace hose reel ( para. 4-24).
b. If defective, replace hose reel bearing blocks ( para. 4-24).
Step 4. Check operation of of hydraulic cylinder. Cylinder must press drive wheel tightly against hose
reel.
See MALFUNCTION 6, Step 2.
Step 5. Operate hose reel and check speed of hydraulic cylinder actuation and drive wheel rotation. If
both operate slowly, sequence valve is defective.
Replace sequence valve (para. 4-16).
Step 6. Check operation of hydraulic motor. Motor should turn drive wheel smoothly in both directions
and at the same speed.
If defective, replace hydraulic motor ( para. 4-27).
If malfunction cannot be corrected replace power unit ( para. 4-18).
10. REEL WILL NOT TURN (PUMP OPERATES).
Step 1. If drive wheel turns at correct speed but hose reel does not turn, check for slipping or worn drive
wheel.
a. Clean drive wheel.
b. If worn or damaged, replace drive wheel ( para. 4-27).
Step 2. If drive wheel does not turn, check for loose or disconnected electrical connectors L5 and L6 on
valve station.
Tighten electrical connectors.
Step 3. With power off and hydraulic pressure relieved, manually rotate hose reels. Reels should turn
smoothly without rubbing on frame or binding.
a. If defective, replace hose reel (para. 4-24).
b. If defective, replace hose reel bearing blocks (para. 4-24).
4-13
