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TM10-3930-660-34
Table-2-1. Direct Support and General Support Troubleshooting Table (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
25. VERY RAPID CYCLING OF BRAKE VALVE
Step 1. Check pilot valve for wear in brake valve.
Repair brake valve, para. 10-4.
HYDRAULIC SYSTEM
26. MLRS ATTACIIMENT OR MAIN CONTROL RELIEF VALVES NOT SEATING
Step 1. Inspect relief valve(s) for contamination.
Remove and disassemble relief valve(s) (para. 16-5).
27. LEAKAGE FOUND BETWEEN SECTIONS OF MLRS ATTACEIMKNT OR E&IN CONTROL VALVES
Step 1. Inspect seals.
Disassemble valve(s) and replace seals, para. 16-4 and 16-5.
Step 2. Check torque of tie rods on MLRS and main control valves.
Torque tie rods, para. 16-4 and 16-5.
28. SPOOLS BINDING IN MLRS ATTACHMENT OR MAIN CONTROL VALVES
Check movement of spools.
Repair valve(s), para. 16-4 or 16-5.
29. EXCESSIVE PRESSURE IN MLRS ATTACHMENT OR MAIN CONTROL VALVES DURING NEUTRAL POSITION
Check to see that spools are centered.
Repair valve(s), para. 16-4 or 16-5.
30. STICKING PLINERS OF MLRS ATTACHMENT OR MAIN CONTROL VALVES
Step 1. Check valve for warpage from mounting.
Repair valve(s), para. 16-4 or 16-5.
Step 2. Check plunger for bends.
Repair valve(s), para. 16-4 or 16-5.
2-13
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