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TM5-4210-229-14&P
Section V. ORGANIZATIONAL TROUBLESHOOTING PROCEDURES
Para.
Para.
General ....................................................................... 4-10
Symptom Index............................................4-11
4-10. GENERAL.
a.
The table in this section lists the common malfunctions which may occur during the operation or maintenance of
the Twin Agent Firefighting Truck or components. The troubleshooting should be performed in the order given in
each malfunction.
b.
This manual cannot list all malfunctions that may occur nor all tests, inspections or corrective actions. If a mal-
function is not listed or it is not corrected by the listed corrective actions, notify your supervisor.
4-11. SYMPTOM INDEX.
Symptom
Page
AUXILIARY FIREFIGHTING EQUIPMENT
Hydraulic Rescue Tool Operates Eratically ...........................................................................................
4-19
Hydraulic Rescue Tool Has Loss of Power ............................................................................................
4-19
Hydraulic Rescue Tool Fails to Operate ................................................................................................
4-19
Hydraulic Rescue Tool Operates in Reverse .........................................................................................
4-19
Power Unit Will Not Start ......................................................................................................................
4-19
Power Unit Misses Under Load .............................................................................................................
4-19
Power Unit Lacks Power .......................................................................................................................
4-19
Power Unit Does Not Run Tool ..............................................................................................................
4-19
TWIN AGENT FIREFIGHTING SYSTEM
High Pressure Gauge Indicates Loss of Pressure ..................................................................................
4-19
Handline Valves Do Not Operate Freely ................................................................................................
4-20
Dry Chemical Handline Valve Does Not Close Properly ........................................................................
4-20
Marked Decrease in Flow From Discharge Nozzles ...............................................................................
4-20
HOSE REEL ASSEMBLY
Hose Nozzle Leaks ...............................................................................................................................
4-20
Hose Reel Rewind Inoperative ..............................................................................................................
4-20
FIRE BODY ASSEMBLY
Back-Up Lights Inoperative ....................................................................................................................
4-20
Stop Lights Inoperative .........................................................................................................................
4-20
ENGINE COOLING SYSTEM
Engine Coolant Overheating .................................................................................................................
4-21
Engine Coolant Loss .............................................................................................................................
4-21
ENGINE EXHAUST SYSTEM
Vibrating Or Rattling From Exhaust System ..........................................................................................
4-21
Restricted Exhaust System ...................................................................................................................
4-21
Exhaust Leakage And/Or Noise .............................................................................................................
4-21
4-16
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