Quantcast FOAM SYSTEM DOES NOT OPERATE.

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TM 9-2320-279-10-3
Troubleshooting Index (Cont)
Table 3-5.
Troubleshooting
Malfunction
Test or Inspection
Corrective Action
9. EXTENDABLE FLOOD LIGHTS DO NOT OPERATE (CONT).
Step 4. If passenger side extendable flood light does not operate:
Check if PASS FLOOD switch in cab is in the ON position.
If PASS FLOOD switch is not in the ON position, place
switch to the ON position.
Step 5. Check if switch on non-operating extendable flood light
assembly is in the ON position.
If extendable flood light assembly switch is not in the
ON position, place switch to the ON position.
Step 6.
If problem still exists, notify Supervisor.
10. FOAM SYSTEM DOES NOT OPERATE.
Step 1. Check foam concentrate level in selected foam tank.
If foam concentrate level is low, fill tank.
Step 2. If pumping from hydrant using the main or auxiliary inlet:
Check if inlet pressure is less than 5 psi (34 kPa).
If inlet pressure is greater than 5 psi (34 kPa), throttle
pressure to 5 psi (34 kPa), or use the direct tank fill
inlet.
Step 3. If operating foam system from the cab: Check if pump output
pressure is above 175 psi (1,207 kPa).
If pump output pressure is not above 175 psi (1,207
kPa), notify Supervisor.
Step 4. If operating foam system from the pump operators panel:
Check if pump output pressure is above 125 psi (862 kPa).
If pump output pressure is not above 125 psi (862 kPa),
notify Supervisor.
Step 5. If problem still exists, notify Supervisor.



 


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