TM 5-4220-233-14
Table 4-2. UNIT TROUBLESHOOTING (Continued).
MALFUNCTION/SYMPTOM
PROBABLE CAUSE
TEST OR INSPECTION/CORRECTIVE ACTION
SUSPENSION SYSTEM
8.
SERVICING UNIT HANDLES POORLY IN TOWING MODE.
Shock absorbers worn or leaking.
Check for wear/leaks and replace as necessary.
Leaf springs worn or broken.
Check for wear and breakage, replace as necessary.
COMPRESSED GAS SYSTEM
9.
EXCESSIVE TIME REQUIRED TO RECHARGE STORAGE CYLINDERS.
Leak in high pressure side of Compressed Gas System.
Perform soap-solution check from recharge port to manifold valve (MV117) and repair leak as
required.
Relief valve (RV100) leaking.
Check for air venting from valve and replace if necessary.
Particulate filter (F100) clogged.
Check filter element and clean or replace as required.
10. PRESSURE GAUGE FOR ONE OR MORE (BUT NOT ALL) STORAGE CYLINDERS READS LOWER
THAN RECHARGE PRESSURE.
Pressure gauge bad.
Replace gauge(s) as required.
11. PRESSURE ON SCUBA CYLINDERS CREEPS UP AFTER FILLING IS COMPLETED.
Pressure regulator has internal leakage.
Repair/Replace pressure regulator.
4-11
