TM 5-4220-233-14Table 4-2. UNIT TROUBLESHOOTING (Continued).MALFUNCTION/SYMPTOMPROBABLE CAUSETEST OR INSPECTION/CORRECTIVE ACTIONSUSPENSION SYSTEM8.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 SYSTEM9.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 asrequired.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 LOWERTHAN 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
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