View Full Version : Governor Pulley Size
06-05-2009, 09:50 PM
I have a Hobart G600 that was a salvage yard rescue. The pulley on the governor was bent and twisted. I took it off and tossed it in the trash without the thought of measuring it. The governor is a Pierce. Does anyone have any ideas about the pulley size. I thought it was a 6 inch pulley but want to be sure.
Is the pulley size critical? Can I slap on a 4" pulley and it won't matter?
06-06-2009, 10:47 AM
The pulley on the Pierce govenor on my flat head chrysler is 31/2' dia. but that may vary due to the dia. of the driving pulley. Pierce is still in business as far as I know and were real helpfull when my govenor went TU. years ago.
06-06-2009, 11:40 AM
The pulley size is critical to keep the governed RPM where it should be. My Jeep powered Hobart has a 3" pulley. Does your welder have AC output? Which engine does it have? Can you measure the crank pulley? AC (auxiliary) output requires 1800 RPM to keep 60hz. DC only machines are not as critical in RPM. Mine runs at 1500.
06-06-2009, 09:12 PM
No AC output.
It has a chrysler V8 (1967 industrial engine)
The crank pulley is 6.25" measured on the outside of the pulley. The belt will sit a little lower in the V groove so it might even out to 6". I don't know.
I'll email the pierce folks to see what size pulley would be the right one.