Questions about triggered differential lock - Snowblower Forum : Snow Blower Forums
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post #1 of 2 Old 02-12-2020, 09:04 PM Thread Starter
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Questions about triggered differential lock

Evening folks,

I've seen a couple of used Pro machines online that must be mid or late 2000s ?? that have a trigger to lock the diff. At least this is what I assume it does. My early 2000s 1128 Pro has an open diff, and a knob that you pull on one of the wheels to lock it. I've honestly never used it because it seemed like a giant hassle, and maybe a few times felt I needed it, but instead just applied body English and got it moving.

Questions: 1) Is the diff normally open, and you squeeze the trigger to lock it? 2) How reliable is this system, i.e. if I never squeeze it and I'm happy with the open diff, or only use it once in a while, can I count on it to not fail? 3) If I'm guessing right so far, what mode would it be in if it fails?

Last edited by WintersBone; 02-12-2020 at 09:07 PM.
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post #2 of 2 Old 02-13-2020, 07:41 AM
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Some have auto locking diffs, some have 2 locking hubs one on each wheel with triggers to unlock one side at a time (power steering) and some have one trigger (handle) that unlocks one main diff for easier manual turning

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