- Joined
- Mar 25, 2015
- Messages
- 95
I didn't get any shims with it, it adjusts by moving the metal angle plate it's mounted to either up or down. I guess shims could be used to move it out but that appears to be a good fit.
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PM 932 mill power feed problem
- Thread starter rherrell
- Start date
- Joined
- Mar 25, 2015
- Messages
- 95
That's easy for YOU to say Mark!
My electronics skills are next to none so we'll save that as a last resort.
- Joined
- Mar 22, 2013
- Messages
- 497
Check the motor brushes. We have spares if you need them, thats what it sounds like.
Usually when it happens its gradual, so people think that its going full speed in rapid, but its actually a lot slower than it was at the beginning. Just a guess, the others could be right with the speed pot, but the brushes are something to check
Usually when it happens its gradual, so people think that its going full speed in rapid, but its actually a lot slower than it was at the beginning. Just a guess, the others could be right with the speed pot, but the brushes are something to check
- Joined
- Jun 12, 2014
- Messages
- 4,810
Rick,
After you check the brushes, if you still have a problem, I would suggest the following:
In the picture below, there is the speed pot on the left with 3 wires connected to it, yellow, white and blue. These wires are connected to the control board with a 3 pin female socket which you should be able to carefully slip off the pins on the control board (Power disconnected). Once the socket is disconnected, use some thin bare wire or pins and stick them in the 3 socket holes to make connections. You can measure the total pot resistance using an ohmmeter between the wires/pins connected to the yellow and blue wires, white wire is attached to the wiper which adjusts the resistance. So use an ohmmeter attached to the yellow and white first and sweep the pot, the resistance should evenly change with no jumps or sudden changes. Repeat this between the white and blue leads. If the pot does need to be replaced, you need to measure the total resistance of the pot, and its basic dimensions. They tend to be fairly standard in size. Remove the old pot unsolder its wires and resolder to the new pot noting the same wire connections. If the pot checks out fine and the brushes look good, then it is probably a problem on the control board.
After you check the brushes, if you still have a problem, I would suggest the following:
In the picture below, there is the speed pot on the left with 3 wires connected to it, yellow, white and blue. These wires are connected to the control board with a 3 pin female socket which you should be able to carefully slip off the pins on the control board (Power disconnected). Once the socket is disconnected, use some thin bare wire or pins and stick them in the 3 socket holes to make connections. You can measure the total pot resistance using an ohmmeter between the wires/pins connected to the yellow and blue wires, white wire is attached to the wiper which adjusts the resistance. So use an ohmmeter attached to the yellow and white first and sweep the pot, the resistance should evenly change with no jumps or sudden changes. Repeat this between the white and blue leads. If the pot does need to be replaced, you need to measure the total resistance of the pot, and its basic dimensions. They tend to be fairly standard in size. Remove the old pot unsolder its wires and resolder to the new pot noting the same wire connections. If the pot checks out fine and the brushes look good, then it is probably a problem on the control board.
- Joined
- Mar 25, 2015
- Messages
- 95
I just ran it with the case open and it will barely do anything. It runs fine in rapid traverse but almost nothing in regular mode. It almost feels like the switch in the handle is bad, if I play with the handle it seems like it wants to start but then it quits. I can't get it to run in regular mode for more than a second or two.
The brushes look fine to me...
The brushes look fine to me...