ARB locker problem

Submitted: Monday, Mar 02, 2009 at 13:27
ThreadID: 66439 Views:2183 Replies:5 FollowUps:5
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good day everyone, have a problem with my arb lockers. have installed front and rear lockers about 6 years ago, work great and highly recommend them. the issue is when i turn on the air compressor the compressor stops when small tank is full. when i engage the front locker the compressor also stops. now the problem is when i engage the rear locker the compressor never stops. after further investigation i find the only leak i have is in the black solenoid ( the theaded empty hole in the solenoid) the air seems to leak from this solenoid. is the solenoid defective? is it just a simple fix by replacing the soleniod or do i have to something else as the directions state disconnecting a valve to allow the solenoid to rotate. any help from will be greatly appreciated. cheers, robert
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Reply By: Member -Signman - Monday, Mar 02, 2009 at 13:50

Monday, Mar 02, 2009 at 13:50
Had the same problem...worked it it was an O ring in the actuating system within the diff. The parts were about $50- but it cost about $150 to have it repaired...
If you think it mat be the solenoid- switch them around (just the wiring)..and see what happens...
If it is the O ring in the diff.- you will notice air being blown out the diff breather tube when the locker is engaged..

AnswerID: 351855

Reply By: - Monday, Mar 02, 2009 at 14:22

Monday, Mar 02, 2009 at 14:22
G'day all, a different locker problem - does anyone have a wiring diagram for the compressor? with mine you can't turn on the compressor by itself, it's locked or its off, the compressor switch on it's own doesn't do anything at all, I think it may have a wire off or wired incorrectly, thanks , aussiedingo
AnswerID: 351861

Follow Up By: Member -Signman - Monday, Mar 02, 2009 at 14:40

Monday, Mar 02, 2009 at 14:40
Wot do ya wanna know ?? I'll check mine out and see if I can help..

FollowupID: 620043

Follow Up By: Member - Paul W- Esq (VIC) - Monday, Mar 02, 2009 at 17:16

Monday, Mar 02, 2009 at 17:16
Is this what you are after??Image Could Not Be Found
if you need more just yell !!!
FollowupID: 620064

Follow Up By: - Monday, Mar 02, 2009 at 19:44

Monday, Mar 02, 2009 at 19:44
YELL!! thanks paulwesqvic, that is exactly what I would like, could you please fax to 07 5444 0107 or email to I would really appreciate that, thank you, regards, Dingo
FollowupID: 620097

Reply By: Pete N Fran - Monday, Mar 02, 2009 at 16:06

Monday, Mar 02, 2009 at 16:06
I would agree that it is probably the O ring in the Diff. 6 years is a decent run out the O rings. Check the diff breather when the locker is activated as described before. Definitely worth getting the front diff done at the same time as the rear as it wont be long till the same thing happens on the front.
AnswerID: 351869

Reply By: Member - Of Mice & Men (NSW) - Monday, Mar 02, 2009 at 17:13

Monday, Mar 02, 2009 at 17:13
Hi Robert, The spare hole that you are describing on the solenoid valve is the exhaust port. If there is air coming out of it (when the locker is engaged ), then the solonoid valve is faulty. Air should only come out of the exhaust port at first when you disengage your locker. So before you spend your hard earned getting someone to replace the orings in the lockers, first fix or replace your faulty solenoid, & then see if the air compressor turns off & your system holds pressure.
Regards OM&M.
AnswerID: 351880

Follow Up By: Member - DOZER- Monday, Mar 02, 2009 at 19:28

Monday, Mar 02, 2009 at 19:28
Second this, as stated above. swap blue hoses, and lock front (now rear) and if compresser stops, it is the solenoid if it keeps ging it is the diff
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FollowupID: 620092

Reply By: Grungle - Tuesday, Mar 03, 2009 at 08:17

Tuesday, Mar 03, 2009 at 08:17
To confirm if solenoid or line / locker seal, try swapping the blue air lines over on the solenoid from one to the other. If problem persists on rear then it could be an airline or locker seal. If the fault moves to the front locker then it will be the solenoid.

AnswerID: 351964

Follow Up By: robert92152 - Wednesday, Mar 04, 2009 at 13:30

Wednesday, Mar 04, 2009 at 13:30
thanks to all that helped out with this problem. as someone advised, i inverted the airlines and the air still leaked. turned out to be a faulty solenoid. i thought only the black part with the hole was only needed, but needed to change the aluminum valve or whatever it is called attached to it. but now everything works fine. thanks again to everyone. another problem solved by Exploroz. cheers, robert
FollowupID: 620357

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