Issues with Coleman Black Max 6hp/60 gal

6 years 3 months ago #2473 by swoo2247
I've had this compressor since March of 2000 and it has just started to pump, slow down, pump and then stop.
The motor continues to run but the compressor itself is tightening up/stopping.

The model number is eligible but I do have the serial number.

So far I have been unable to locate any parts without the model number and really don't know where to turn.

Worst case is replacing the compressor pump but I'm not to sure which one would fit.

Any help would be greatly appreciated.

Steve
Corpus Christi, Tx

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6 years 3 months ago - 6 years 3 months ago #2547 by MTR-Admin
Replied by MTR-Admin on topic Issues with Coleman Black Max 6hp/60 gal
Thanks for the post swoo2247,

Does your air compressor look like the one on the below page?

mastertoolrepair.com/stationary-singlest...fn5376rqssi8hesqamg1

Typically this happens for a couple different reasons:

1) Belt is too tight or too loose. There should be only 1/2" deflection when you press down on the belt at the center point.

2) Pump is locked up/damaged. Remove the Belt and turn the pump flywheel by hand. Does it spin freely? There should be some resistance as it creates compression when the flywheel is turned, but it shouldn't be difficult to turn by hand.

3) Check Valve is clogged. I would remove the in-tank Check Valve, which is the one-way brass valve that's threaded in the tank inlet, where your main Supply Tube connects to from the pump head. Many times it becomes clogged due to debris getting inside via the pump head, so it will obstruct airflow and put back pressure on the pump. NOTE! Be sure to drain the tank of air first!!

This should give you a good starting point.

- MTR

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6 years 3 months ago #2560 by swoo2247
Replied by swoo2247 on topic Issues with Coleman Black Max 6hp/60 gal
Yes that's the one I have.

I'll go through and do what you recommend when I return from vacation

Thanks for the reply

Steve

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6 years 1 month ago #2631 by MTR-Admin
Replied by MTR-Admin on topic Issues with Coleman Black Max 6hp/60 gal
Sounds good. Hope it worked for you.

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