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4010W Rear Diff Lock Engagement
Topic Started: Oct 10 2017, 10:39 PM (65 Views)
McTrout
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My Gen2 4010W came without the diff lock cable attached and when I've gone to fit it, it's become apparent that it's too short. It looks like the chassis has been extended at some point and that the cable was never replaced. I've been under the vehicle and tried to engage the diff manually by pulling the lever (just to test it), but the lever only seems to move around 15mm before stopping.

Does this seem right? The lever in the cab seems to have a lot more travel than that. Does the diff need a little movement to lock in? I don't want to just go and fork out on a new cable (100+) if the diff itself is screwed! (Experience tells me to assume the worst and work backwards from there!)
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marcustuck
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Chock the front wheels, put it in neutral and jack one of the rear wheels clear of the ground. Now if you turn the raised wheel it will turn and the prop-shaft will rotate. If the rear lock is engaged the raised will not be able to be turned (other than the slack in the diff gears). You may need a little movement of the raised wheel to get the lock to engage. Obviously be careful going under the jacked up vehicle to engage the lock, can you tie a length of string to it so it can be pulled when you are clear?
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McTrout
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Thank you. I'll try that. I can attach the old short cable to it and pull on that from the side :-)
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graysworld
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The diff lock engauges fully when the axle turns. There should be an on and off spring. The mechanism is prone to seizing if it is not used. To cure remove hold in a vice and work the lever with penetrating oil. Take it apart. Make sure everything is clean and greased. Keep it periodically oiled and engauge it once in a while. Marcus's test will work.

Graeme
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