Husky WL650700aj that needs a little help

by Mark Lampereur
(Green Bay, WI USA)

Husky WL650700aj

Husky WL650700aj

Husky WL650700aj
Husky WL650700aj
Husky WL650700aj end of the nylon hose

Pressure switch operation and hookup - Husky wl650700aj.


I just acquired a Husky WL650700aj that needs a little help. It is missing the upper shroud, so it has had a hard life.

While it pumps and builds pressure, there is a small nylon hose that attaches on one end to the same tank fitting that the pump outlet pipe uses. The other end of this hose is unattached, and I imagine that it is supposed to hook to the pressure switch.

Is this nylon hose the sending unit for the tank pressure switch? I didn't see a spot to attach it on the current pressure switch, and there is not any threading on the coupler - probably broken.

Or, does the pressure switch work off the vertical pipe coming out of the tank that it is attached to? If that is the case can I just block off the nylon hose and let the tank build pressure?

I think this was originally made by Campbell Hausfeld per the info on your Husky page. I went online and did not see info on this model. I request info from their customer service address.

When I look for parts I see the switch in the parts diagram, but not the nylon hose and its hookup. I am a total newbie to using a compressor, so I barely know anything about them. Your help will be appreciated.

I have attached a few pictures, but I will need to take some additional ones more specific to my questions.

Thanks,

Click here to read or post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Husky Air Compressor Issues.

Husky WL650700aj that needs a little help - pictures

by Mark Lampereur
(Green Bay, WI USA)

Unloader hose - pic 1

Unloader hose - pic 1

Unloader hose - pic 1
Unloader hose - pic 2
Pressure switch - pic 1
Pressure switch - pic 2

Through looking at the site further it does appear that the nylon hose is related to the unloader. it runs from the check valve to somewhere, but I haven't figured that out yet. I am assuming it is the pressure switch, but I also assume that whereever it hooks up is broken.

Here are some additional pictures to add to my original post that can hopefully help with diagnosis of the compressor - besides saying it is broken!! The pressure switch is definitely broken - the red lever is not hooked to anything.

Click here to read or post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Husky Air Compressor Issues.

Husky WL650700aj that needs a little help - 2

by Mark Lampereur
(Green Bay, WI USA)

Pressure switch - pic 3

Pressure switch - pic 3

Pressure switch - pic 3
Pressure switch - pic 4
Pressure switch - pic 5

Just some more pictures to add to the original post. Please let me know if you need any additional pictures to diagnose.

Assuming that I need a pressure switch, is there a spot on the switch where a part number is customarily located? Can I just close off the unloader (crimp or cap) and run without it. Is there a way that I could do that to test the pressure switch. The nylon unloader line has a crimp in it already.

Last thing - to swap out the pressure switch I will need to remove it from the nipple in the tank. I tried turning it off, and it doesn't budge. Is there a trick to it, or just use more leverage. I am not afraid to break this pressure switch, just want to know a tip for the reinstall.

Click here to read or post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Husky Air Compressor Issues.