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Greg Haugen
05-13-2009, 12:43 PM
Hello everyone,

My question is how difficult is it to rewire a Gast 1/4 horse pump to 110V and not 220V??
David Christopher
05-13-2009, 12:49 PM
Greg, if it is a dual voltage motor the diagram should be onthe inside of the motor plate where the wires go into the motor
Greg Haugen
05-13-2009, 12:50 PM
Dave,
Hhmmm. That's a good question. I was looking at a "surplus Center" motor and I'm not sure if they say if it's dual or not?
Jason Clark2
05-13-2009, 1:23 PM
The Surplus Center (4-1669) pump is NOT dual voltage. 220v only.

Jason
Greg Haugen
05-13-2009, 1:48 PM
Dang it!! thanks for the info though. I was hoping that would work out since it's a nice price for a nice pump.
Scott Mark
05-13-2009, 2:05 PM
Holy cow! That deal rocks! The catalog says these used. Does anyone know how well these last? Even if you just have an opinion I'd appreciate it. Thanks!
Jason Clark2
05-13-2009, 3:18 PM
I've only had mine for about 2 1/2 months so I can't speak to longevity but mine arrived in much better shape than I anticipated. It's cleaner and has significantly less paint wear than the one shown in their photo. If you have easy access to 220 power it's a fantastic pump for the money. They list the maximum vacuum at 20" but mine pulls 25" with no problems.

Jason
Mike Peace
05-13-2009, 4:45 PM
I was able to buy a late model GAST 523 110V with internal filters off eBay for less than a $100 including shipping. This is an oiless rotory vane pump identical to the one sold by CSUSA and Packard for vacuum chucking. Model 522 is an older model of the 523 and pulls 4.0 CFM whereas the 523 model pulls 4.5 CFM. I know nothing about vacuum pumps other than these two pumps work and are popular for vacuum chucks. Most older models require external filters which is an additional expense. The 110V Gast saved me the inconvenience and expense of having to run another 220 line or buying and wiring a 220 duplex receptacle to the circuit my lathe is connected to as well as the 220 V pigtail. Consider these extra costs when comparing a 220V GAST 522 from Surplus Center or a 220V Gast 523 as reasonably priced 110 V Gast pumps come up on eBay quite often.