We have an easy to follow chart for any GAST vacuum pump/compressor or air motor. Simply click your type and find the model you use:
Air Motor Kits
Diaphragm Kits
Piston Unit Kits
Rocking Piston Pump Kits
Rotary Kits
We have an easy to follow chart for any GAST vacuum pump/compressor or air motor. Simply click your type and find the model you use:
Air Motor Kits
Diaphragm Kits
Piston Unit Kits
Rocking Piston Pump Kits
Rotary Kits
Most standard Gast pumps are dual voltage – 115V/230V. They come wired for high voltage. If you are running low voltage when the pump is wired high the pump will struggle to work. There are wiring instructions on the motor label. It is a quick fix of changing a couple of wires and you will be ready to go.
If the pump has been in operation for a while and it sounds like it is struggling you should check the exhaust filter/muffler. Remove the filter and turn the pump on briefly. If it sounds like it is working properly you have isolated the problem. Change the filters and proceed.
If the pump has been in operation for a while and it is being used as a compressor check the pressure coming out of the unit. Many Gast pumps are capable of over-pressurization. If they run above the rated pressure the motor will have a hard time keeping up with the increased demand. Warning: running above rated pressure can cause damage or failure. There are inexpensive relief valves to protect the pumps from this condition.
Reverse the wiring of two of the legs of the three phase power. Power up, test, and repeat with the other legs until the motor spins in the correct direction.
Connect power and common wires of your sensor to an appropriate power supply. Check the voltage between the output signal and 0V of the power supply using a voltmeter. Activate the sensor, the sensor should alternate between a voltage and an open circuit. 0V = NPN & 24V (or power supply voltage) = PNP
All items submitted for return must have a Return Material Authorization (RMA) number from Brenner-Fiedler's Returns Department. We will evaluate and process the return claim in a timely manner.
To initiate a return, please fill out the Return Request Form and email to CWalter@brfa.com.
Having trouble finding parts on our website? Simply send us an email tocustomerservice@brfa.com and let one of our sales representatives help you get the parts you need.
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