14
TROUBLE SHOOTING INFORMATION
If your Ambient Air pump is not working satisfactorily, please follow the trouble shooting steps below:
SYMPTOM: Pump Fails to Start or Hums
Turn pump switch off and disconnect from the power source.
Check for correct electrical current as shown on the motor plate and in the Specification Chart on page 3 of
this manual.
The pump is equipped with a thermal overload protector that turns the current off when subjected to
electrical overloads. Check to be sure that the circuit is not overloaded by the pump and other electrical
equipment.
Wait 15 minutes and restart
SYMPTOM: Outlet Pressure Too Low
Be sure you know the proper pressure range for the respirator - see the respirator’s instruction manual.
Be sure the respirator and air supply hose are connected when the gauge reading is taken.
Check to see that the gauge is functioning properly. Replace the gauge if broken or malfunctioning.
Check to see that the outlet filter can is seated firmly into the filter housing’s gasket so that no air can escape.
Replace can and/or gasket if damaged or worn.
Check to see that no air is escaping from the pressure relief valve. Re-adjust the pressure relief valve if
necessary.
Check that both the inlet muffler (P/N 80515) and the outlet filter (P/N 80496) are clean and replace if
necessary. Dirty filters restrict air flow.
Flush the pump with Loctite ODC - Free Cleaner & Degreaser (P/N 22355) to remove excessive dirt,
sand, particles, moisture or oil in the rotor assembly. See the Maintenance Section on Page 11 of this
manual for the procedure on flushing the pump.
When the parts are reassembled, attach the respirator and turn on the pump, monitoring the outlet pressure.
SYMPTOM: Outlet Pressure Too High
The pressure adjustment valve is set too high - reset to a lower pressure. Be sure the outlet pressure remains
in the proper range for the respirator as specified by the respirator manufacturer - see the respirator’s
instruction manual.
Check the respirator’s air supply hose for kinks.