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Symptom
Symptom
Possible Cause
Possible Cause
Solution
Solution
The bleed-down time seems too
long during system shutdown.
The bleed-down time varies between
systems.
If the auto-sync system is working properly and the compressor output is within spec, the bleed-down time is normal.
There is a plugged restrictor jet at the air
inlet trim valve tee.
Remove and discard the restrictor jet at the tee fitting.
The green/gray air-brake tube is
restricted.
Make sure that the green/gray tubing is not kinked or obstructed—clear any obstructions.
The shuttle valve is stuck.
Disassemble and clean the shuttle valve, then install it back into the PMC.
Note:
Because it is easy to reverse the shuttle valve connections, make sure to note how the shuttle valve is connected
during disassembly.
The air clutch is smoking.
The auto-sync system is engaged in the
wrong mode.
Engage the system in auto or unload mode.
The clutch solenoid has an air leak.
Repair the air leak or replace the solenoid.
The clutch disc is contaminated.
Clean or replace the clutch disc.
The clutch is engaged at a high engine
speed.
Only engage the clutch at a lower engine speed.
The clutch is engaging the system when
the compressor has not had adequate
bleed-down time.
Allow the air (pressure) in the compressor to bleed off before engaging the compressor.
The air supply for the clutch does not
have an isolated air line.
Plumb an air line exclusively for clutch operation.
The discharge hose is shaking
(slug flow).
The foam proportioner is on, the setting
is correct, and the tank has concentrate,
but it is not providing foam solution.
Refer to foam proportioner instructions for detailed calibration and troubleshooting instructions.
Foam concentrate is not being injected
into the foam manifold.
Make sure that the foam system is turned on.
The discharge has low water flow and
the foam concentrate is not being
injected into the foam manifold.
• Increase water flow.
• Raise the foam percentage.
• Make sure that the flow meter is the correct size.
• Make sure that the foam system has been calibrated—recalibrate the system.
Poor quality foam concentrate is being
used.
• Make sure that the foam system is calibrated correctly.
• Raise the foam percentage until slug flow stops.
The wye strainer is plugged with debris. Clean the foam tank and wye strainer, then open the foam concentrate shut-off valve.
The foam concentrate shut-off valve is
closed.
Open the shut-off valve.
The foam concentrate inject check valve
is in the bypass position.
Move the check valve to the inject position.
Содержание Eclipse
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