holman compair c20 tow behind

by kevin jones
(lowestoft)

engine cuts out when it gets to air pressure


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Bill says....

I believe that when this tow-behind type air compressor gets to cut out pressure level, the unloader valve interconnects with the throttle, to reduce the engine RPM's while the pressure is topped up.

If the motor is cutting right out, it could be the throttle valve needs adjusting.

That's where I would point the mechanic.

Cheers,

Bill

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holman 175 mobile compressor

by taonga chidavarume
(bindura ,zimbabwe)

what should be the pressure rating for this machine,what should be done if the machine fails to deliver the rated pressure?

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Bill says...

I have been unable to locate the specifications for the Holman Zitair 175 tow behind air compressor.

You should expect to get around 3-4 CFM of compressed air flow at 90 PSI for each HP of motor size.

In terms of what may be preventing the compressor from reaching its design discharge rate, there are many issues involved, and without specifics as to the symptoms it would be very difficult for anyone to provide guidance.

If anyone has any info on this air compressor for taonga, please post a comment here.

Cheers,

Bill

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holman 2301s portable road compressor

by rory
(northern ireland)

hi i have a holman 2301s road compressor..
it is a screw type pump, when you press the boost switch the "air/oil" tank relief valve opens and discharges oil

this valve opens at 8bar, im just wondering should this valve open or is there a pressure regulator which should open before this valve

it seems that the oil and air isnt seperating and the oil level rises... the oil level should be a few inches below the relief valve

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Jun 29, 2016
Compair Holman
by: Tommo (UK)

I am running a Compair Holman tow-able compressor of about 250cfm. My normal start procedure is followed where upon the pressure should sit at 100psi on tick over. The fault is now it will reach 100psi and not remain at tick over but fade out and stall.

I do a start procedure 3 times and it finally sits at 100psi but once you operate the deadman switch on the sandblasting hose it picks up in revs as it should but then fades and stalls. I then do the start procedure again and the same happens maybe 3 or 4 times until eventually it runs as it should though some times you can hear the revs fluctuating?

What could be the cause?

(Please start a new thread under Tow Behind Compressors. Thank you. Moderator)

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Flame shooting out when a tow behind compressor door is opened.

by Mathew Joseph
(Dallas, Texas )

What can cause flame to shoot out when the cover is opened on a 185 Ingersoll Rand Compressor. My phone number is 214-531-8633. Do you know of any compresor mechanic in Houston, Texas?
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Mathew, sounds like a gas vapor leak, which is ignited by a spark when the door safety (if it has one) is tripped by opening the door.

I certainly would not use the compressor until I had it fixed.

See the pages on Compressor Repair Shops linked from the navigation bar to see if there are any listed in the Dallas area. I am not from there, myself.

Cheers,

Bill


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