Thread: ARB Locker problems

Originally Posted by Buggerluggs

Had the misfortune on not being able to use the lockers up at Toolangi the other weekend. Bummer!!

Took the pumpkin out today to find that the copper air line tube had fatigued to the point of completely snapping off at the seal housing end. ARB have not heard of this so had to order a new part. The tube is silver brazed into the housing and I do not have an oxy torch available.

Oh well gave me some practice and a good look at the diff and bearings etc.

you dont need oxy what you need is a propopane or butane torch and the hell they havent heard of it, snapping the internal line from the carier side or the housing side is about the 3rd most common cause of their lockers failing to actuate. (thats not implying that they have a huge failure rate)

Yes they do....


T

Originally Posted by tony

Yes they do....


T

Actually they don't and just about everytime, its the installation that's the cause

Dave about once a week we see one failed for one reason or another...

T

Originally Posted by tony

Dave about once a week we see one failed for one reason or another...

T

Yep...Copper Airline worn through, air passing through O-rings......Installation faults

I've seen a larger Maxi to ARB failure rate

ok when I said huge failure rate I ment huge as in "every second diff lets go" kind of huge.

Ive seen 14 since i relisted to the ADF but most of them were simply the incorrect connecion to the line that runs from the housing ouside or gunk getting in there..

next most common was failure of the seal on the actual acutator be it sticking or leaking preventing good actuation of the mech

and 3rd was fatigue failure of the joints on the pipe that runs from the inside of the housing to the actuator. (in once case the pipe had gone an gotten itself flattened up and mangled into the drive gears....)

In my case the tube was intact, had not contacted anything, just fatigue cracked at the point where it goes into the seal housing. I can see this happening as a result of the design. The copper tube is quite long, held rigid at one end then clamped into a fitting at the other with an 'o' ring. This allows the tube to vibrate and copper has a tendency to fatigue. The solution is to use steel piping but this is not as flexible and installation would be a problem.

Originally Posted by rovercare

I've seen a larger Maxi to ARB failure rate

really ..do tell ...i was told maxis are virtually indestructable.