ARB air locker

Submitted: Sunday, Jan 06, 2008 at 14:35

ThreadID: 53170 Views:2109 Replies:2 FollowUps:1

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pop2jocem

Greetings all

I would like once again to avail myself of the vast store of knowledge that is the Forum.
I have an air locker fitted to the Cruiser. After using the original air pump to inflate a heap of tyres the abovementioned pump threw in the towel. I am in the process of fitting a much larger unit to hopefully carry out both duties without stressing too much.
Question, what is the correct air pressure to engage the diff lock without damaging the internal seals? I rang our local ARB agent and was told that 5 PSI was required. I asked if he meant 5 atmospheres/ BAR (about 75 PSI). The phone went quiet for a while and when he came back assured me that 5 PSI was correct. This seems awfully light on to me, but having been wrong once or twice before I thought it might be a good idea to ask before I blow something up. The original would inflate tyres to road pressures without any problems and I did not see any pressure regulator to reduce to 5PSI for diff operation.
HELP!!!

Cheers pop

PS Yes i know that volume and pressure are 2 different things.

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Reply By: Crackles - Sunday, Jan 06, 2008 at 15:04

Sunday, Jan 06, 2008 at 15:04

ARB lockers are designed to work at 90 PSI although they do engage at far less pressure. ARB don't like you using another brand compressor and threaten a loss of warrenty if you do as they say running at lower pressure can cause damage. When I upgraded my compressor to a different brand I got around this by useing their air switch so there can be no dispute.
Cheers Craig........

AnswerID: 280091