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Gardner Denver Air Comp.

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Jerry

07-17-2003 05:28:13




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I have a model WH 210 DD it is a compressor six cyl. 5 1/2 low side 4 1/2 high side with Cat 318 power, would like to change the air setting up to 150 lb. any one know how?




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Jerry

07-18-2003 09:04:23




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 Re: Gardner Denver Air Comp. in reply to Jerry, 07-17-2003 05:28:13  
Any one know were to get part for this old compressor its about a 1950



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Roger

07-19-2003 18:07:41




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 Re: Re: Gardner Denver Air Comp. in reply to Jerry, 07-18-2003 09:04:23  
Contact your local GD dealer. If you have no luck, see if another compressor shop can get parts through Independent Components Corp out of New York. They will sell only to resale accounts, so you will have to get a compressor shop to order them.



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Wayne

07-19-2003 18:22:05




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 Re: Re: Re: Gardner Denver Air Comp. in reply to Roger, 07-19-2003 18:07:41  
Hey Rodger, thanks for the link. I've got a customer into drilling and blasting that has alot of the old IR Gyroflow compressors, and some Sullairs, not to mention a couple of the newer Compair compressors. Last summer he kept me hopping trying to keep everything running, so this summer I need to be prepared, and having another source for parts like these guys will nice.



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Roger

07-19-2003 21:45:31




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 Re: Re: Re: Re: Gardner Denver Air Comp. in reply to Wayne, 07-19-2003 18:22:05  
This is another good company.



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Wayne

07-17-2003 20:22:46




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 Re: Gardner Denver Air Comp. in reply to Jerry, 07-17-2003 05:28:13  
I've done alot of work over the past few years on engine driven compressors, and before you change anything you need to consider a couple of things. One of the first things to think about before you change the pressure settings is does the engine have enough HP handle the higher output. As long as the engine/compressor RPM remains the same the CFM output will remain the same. So as the pressure builds it will attempt retain the same output, but will be trying to do it at the higher pressure, and this can lug the engine and/or just overwork it to the point of killing it prematurely. Secondly will the components in the control system handle the higher pressure. Many compressors that have a higher output CFM are only rated around 90-120psi, since that's the range most tools are designed for. Consequently the control systems are designed to handle those pressures, and diaphrams, seals, etc can rupture under the higher pressures. Beyond this, I agree with Rodger, most all of the engine driven compressors have an adjustable control valve of some sort that will allow you to raise or lower the output pressure. Also in refference to what I said above, many times when changing the air output parameters you may also have to readjust the fuel settings to allow the engine to handle the larger load. Good luck.

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Roger

07-17-2003 09:48:23




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 Re: Gardner Denver Air Comp. in reply to Jerry, 07-17-2003 05:28:13  
There is probably a brass unloader valve with set nuts to change the unloading pressure. Usually it can be adjusted by unlocking a jam nut and adjusting the brass nut inward. Look back from the air lines going to the heads. They will probably come to one brass control valve that takes it's signal from the air line or reservoir. There should be a method to adjust the pressure settings here. There are probably two nuts, one for range, another for pressure. They can be a real hair puller to adjust correctly. If it is a Control Devices unloader with one small nut inside a larger nut, adjust the larger nut all the way to the bottom and back of about 1/8 or a turn. Lock the adjuster nut with the jam nut. Your range should now be set. Now, do the same to the smaller inner nut until you get the desired pressure. While adjusting the inner nut, your range may change, and need readjustment. While I was sure I had this down pat long ago, tuning these valves is something of a black art. Just do one at a time. Here's a guide. Your control valve may be a different make, but I bet the pronciple will be much the same.

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