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sounds like the pressor switch has died and is stuck in the closed possition, try just unpluging one of the 2 wires on the pressor switch and see if it cuts out, if it does try a new one. If that doesn`t work try replacing the main relay as it could be what has died and is stuck in the closed possy.
Parts are no longer avalable for that model, that model compressor was heeps better then the new ones so keep it as long as you can.
Last edited by MissDrew on Fri Feb 27, 2004 6:02 pm, edited 1 time in total.
It could be running continuosly because of an air leak or a faulty pressure switch.
The first thing I would do is hook up a pressure guage and see if it getting right up to 100psi or not.
Paul.
ill second evry one sayin check the pressure switch, but id also be looking at the small air filter they normally have on them, i did know when i had mine, the filter was chokas, and took ages to pump, clean it or replace it!
I have the same compressor on my air locker system. Mine kept pumping air due to a small leak in the line at the coupling with the diff housing. Otherwise its (like everyone else has said) the pressure switch.
Pressure switch. How do I check if it is farked ? Guts says
Guts wrote:try just unpluging one of the 2 wires on the pressor switch and see if it cuts out, if it does try a new one
So if it cuts out when disconnected - its farked
Air leak ? Doesnt sound like any air escaping at the compressor end of the lines and the diff ends are nice and tight. So I am about 80% sure this is not it
Air Filter- Tonka and ozy1 - where is it ? Is it internal ?
ausyota wrote:It could be running continuosly because of an air leak or a faulty pressure switch. The first thing I would do is hook up a pressure guage and see if it getting right up to 100psi or not. Paul.
I would guess it is getting about 100psi as the lockers seem to work fine
What do I hook the gauge up to ? The diff end of the line ?
Between the tank and the motor on the cast plate is a sintered bronze filter. Screws out. Replace with a 1/4" barb . a bit of fuel line and a cheap petrol filter.
Two things keep it running.
1. An air leak (probable cause)
Check all fittings with soapy water sprayed on, look for bubbles.
2. One way valve inside airtank is leaking back to cylinder. Is just a stainless flapper valve with an "O" ring underneath.
If pressure switch was stuck open it would pump high enough to blow the tank seal.
To check pressure screw a 1/4 gas fitting into outlet and att an air guage at tank.
An internal air leak in the diff can cause the compressor to run constantly as well. There's 2 o rings inside the diff where the air enters the locker, and a 'c' seal on the piston that activates the lock. Mine was spitting oil out the solenoid dump valve coz one of the o rings was buggered. I've had to replace the pressure switch twice on mine over the past 10 years - it would cycle on and off really quickly, 2-3 second bursts
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