Question about Campbell Hausfeld 04 Gallon Twin Stack Compressor HL5502

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C.Hausfeld HLseries compressor pressure cut in setting

HiI have a Cambell Hausfeld HLseries compressor.....I want to set the cut in pressure (auto cut in) lower than the preset setting. This is to run it off my generator... the generator will power it, but struggles at first due to the start up pressure in the tank.....I opened the electrical housing and it looks like there are 2 screws that may do what i want....they are covered in a clear glue...i guess from the factory to keep the setting.....will these do it??

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Hello. The answer is yes. Let me warn you to make only small adjustments at a time and be sure to relock the two screws using some one minute clear epoxy.

Posted on Jul 24, 2009


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This could be caused by one of two things:
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Name: Campbell Hausfeld S/N: 0519588 Year: 1996 3.5 HP 11 Gallon Do you carry parts for the compressor described above ? In particular a Conrad Kit


This is not a business

It is a social web site,
we are at home

Use the Cambell Web site
You can buy directly from them

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Compressor will only build pressure to 75 lbs. and won't shut off.

hi! there, the setting of your pressure switch has the ability to control the cut in and cut out of your compressor.unplug the compressor check the pressure switch by opening the cover loosening the bolt nut at the top cover you can see the four set of contactor inside crack the contactor if disengaging to the other side there should be a disengaging of contactor to cut the power supply if defective replace,if it is functioning normally.if it is not defective set this to what you want operating pressure and observe the cut out pressure several times is needed follow the pressure switch adjustment procedure.have a nice day and fix my rate,thanks a lot.

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Air compressor's safety release valve pops open.

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How do i set the cut in pressure on my CH HLseries compressor?

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High/low pressure spring settings

Generally, the pressure switch is not adjusted more than once or twice in the life of the compressor since the discharge pressure can be adjusted with pressure regulator. However the life of the compressor can be increased if lower pressure settings are maintained. Your pressure switch was set at the factory to a setting of about 120 - 150. If your cutout pressure is higher than 150 surely lower.
STEP 1: Turn Main Calibration Screw ( center screw with large spring) clockwise to increase pressure and turn counter-clockwise to decrease pressure.

STEP 2: Turn Differential Pressure Screw (small spring) clockwise to decrease cut-in pressure and
turn counter-clockwise to increase cut-in pressure.

Differential Pressure is defined as the difference between cut-out and cut-in pressure. There should be about 7 to 12 psi difference between cut-out and cut-in.
In our shop we rarely adjust more than a couple of turns because these switches are sensitive.
Good Luck and please post again if you have other concerns about your compressor.

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