check out the new remote control Jockey Wheel SmartBar Canegrowers rearview170 Cobb Grill Skid Row Recovery Gear
Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Help needed to rewire a 12v portable compressor


Senior Member

Status: Offline
Posts: 148
Date:
Help needed to rewire a 12v portable compressor


My single pot compressor stopped working a little while ago whilst on holidays.  Would go, stop, go and then it permanently stopped.  Brand name is Titan but they are all the same as far as I can tell...just a different colours.  

Since getting back I've been mucking around trying to resurrect it (to give to one of the kids) without much luck.

Being a 12v numpty my first thought was the relay's buggered so bought a cheapy on eBay (didn't know how to test old one  :-[).  But that wasn't the issue since it still didn't work with the new relay.

It also had some sort of thermal cutout switch which could have been the problem but I figure I never use it for extended periods so that bit is not really needed.

I then tried ignoring the relay and just wire it directly.  It goes but has no grunt and really slow...I can put my finger over the hose end and it stops pumping.

There are 2 thick wires going into it and 1 thin one coming back out.

Is a relay absolutely necessary for these things to work?  And if so why (educate me in simple terms)?

In my mind it's an electrical issue given it does now sort of work whereas it didn't before my butchered wiring attempt.  As a 12v dummy I'd say it isn't getting sufficient volts.  Had it hooked up to a car battery with motor running so that part isn't the issue. 

So how should I wire it (simpler the better) so that the thing works again as a compressor.

Thanks in advance for any help.



__________________


Guru

Status: Offline
Posts: 1485
Date:

Hi Moose 2,

I took the alligator clamps off my compressor and fitted an Andersen plug so that I can plug it in to the power outlet at the rear of the car which is for the van fridge wiring.

My compressor to my knowledge does not have a relay but it does have an overload switch.
I have never seen it go into overload when inflating tyres but I guess it could if it ran for long periods.

I think the brand of mine is Ridge Ryder but as you say, they all look the same.

Regards

Rob

__________________

Regards

Rob

Chairman of the Bored



Guru

Status: Offline
Posts: 7314
Date:

The cylinder head's remaining gaps fills with water from compressing air. Then left it corrodes & eventually no pressure.



__________________

Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.



Guru

Status: Offline
Posts: 1927
Date:

Hi moose smile

My compressor that I have had for 10 years, had problems at one time. It has a blade fuse in the wires and the fuse holder plastic had partly melted and the fuse was not making good contact. I forget what i did exactly but it would be to make the contacts good with positive clean metal to metal contact and supported so it all holds together as it should. It has been working for years since. 

It has no relay, but has a switch on the end cover. Not sure why you need a relay ??

Jaahn 



-- Edited by Jaahn on Friday 20th of December 2019 01:38:21 PM

__________________


Guru

Status: Offline
Posts: 4375
Date:

It could also be a broken motor winding wire that touches but does not make good contact.
Check the winding resistances.
To have any chance of fixing that you will bed to disassemble the motor and find the break. Even if you do that, the chances of doing a decent repair is slim.
Cheers,
Peter

__________________

OKA196, 4x4 'C' Class, DIY, self contained motorhome. 960W of solar, 400Ah of AGMs, 310L water, 280L fuel. https://www.oka4wd.com/forum/members-vehicles-public/569-oka196-xt-motorhome
 

 



Veteran Member

Status: Offline
Posts: 41
Date:

Hi, any pictures of where the wires go in as 2 thick wires and one thin. Seems unusual on that type of motor which are normally permanent magnet fields and the two heavy wires go to the brushes to power armature.

__________________
Roger


Senior Member

Status: Offline
Posts: 148
Date:

Roger Roger wrote:

Hi, any pictures of where the wires go in as 2 thick wires and one thin. Seems unusual on that type of motor which are normally permanent magnet fields and the two heavy wires go to the brushes to power armature.


 Unable to get pic at present.  Pic wouldn't be helpful as the wires pass through a plastic cover so can't see where they end up.    But it's twin core going in and one thin black wire coming out.  Can't remember what it was connected to....maybe the on/off switch.  Will just have to completely dismantle it one day...if I stuff it up will not matter as not really working now.  Will be good experience to see what's inside.



__________________


Veteran Member

Status: Offline
Posts: 79
Date:

sounds like rusty cylinder wall and "0" ring is damaged,,causing slow running and no pressure ,,or as Peter said ,internal wiring..

__________________
rs wiseman
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
Purchase Grey Nomad bumper stickers Read our daily column, the Nomad News The Grey Nomad's Guidebook