Ground drive not working on a ST1032 - Snowblower Forum : Snow Blower Forums
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post #1 of 32 Old 11-18-2019, 03:30 PM Thread Starter
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Belts are in good shape, drive clutch engages well, friction disk in good shape, good traction on disk. All chains and gears spinning. But no drive at all to wheels. Not clicking from diff when free wheeling around. Is my diff. blown?
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Last edited by Shortlid; 12-01-2019 at 11:17 PM.
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post #2 of 32 Old 11-18-2019, 04:34 PM
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The Drive Plates on those Sometimes Stick. Put the Machine in the Service Position, and remove the bottom pan. Squeeze the Clutch lever, and observe if the Drive plate is making Contact with the Friction wheel. If not, Spray PB blaster or equivelent on the shaft behind the drive plate. With Prybar, pry the drive plate towards the friction wheel, and then pry it back. Rinse and Repeat Until it Moves by using the Clutch Lever.
IF everything spins, but not under a load, the belt may be slipping. Or there is a Sheared or Missing key on the gear on the friction wheel shaft.

Last edited by Jackmels; 11-18-2019 at 04:42 PM.
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post #3 of 32 Old 11-19-2019, 01:41 PM Thread Starter
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The Drive Plates on those Sometimes Stick. Put the Machine in the Service Position, and remove the bottom pan. Squeeze the Clutch lever, and observe if the Drive plate is making Contact with the Friction wheel. If not, Spray PB blaster or equivelent on the shaft behind the drive plate. With Prybar, pry the drive plate towards the friction wheel, and then pry it back. Rinse and Repeat Until it Moves by using the Clutch Lever.
IF everything spins, but not under a load, the belt may be slipping. Or there is a Sheared or Missing key on the gear on the friction wheel shaft.
Everything but the wheels and the axle spins under engine power.
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post #4 of 32 Old 11-19-2019, 03:34 PM
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Like Jack said, the drive plate that meets the rubber drive has to move up and down....sometimes they stick, and you don't move....
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post #5 of 32 Old 11-19-2019, 04:17 PM
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Everything but the wheels and the axle spins under engine power.

There is a small Key on the Hex Shaft that Locks the small sprocket in place. With the machine in service position and the Differential Locked, Spin the friction wheel. Hold the Tire from Moving, and see whats happening with the Chain Drive.
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post #6 of 32 Old 11-19-2019, 10:49 PM Thread Starter
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Everything but the wheels and the axle spins under engine power.

There is a small Key on the Hex Shaft that Locks the small sprocket in place. With the machine in service position and the Differential Locked, Spin the friction
wheel. Hold the Tire from Moving, and see whats happening with the Chain Drive.
There is no manual differential locker on this snow blower.
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post #7 of 32 Old 11-20-2019, 10:32 AM
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Unless someone somehow retrofitted one or the model number sticker is wrong, that machine should not have an auto-turn differential. I have the same model and as far as I know it was made from the early to the mid-late 1990s, and auto-turn was introduced in 2013.

Anyhow here's another idea: put the machine in service position, and rotate the rubber friction wheel by hand while taking a video of the mechanism so we can see what's moving and what's not. That might help us figure out what's going on.

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post #8 of 32 Old 11-20-2019, 01:47 PM
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According to My Info, it HAS a Locking Diff
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post #9 of 32 Old 11-21-2019, 09:02 AM
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I have the same machine, serial numbered 100 lower than OP's machine. It Definitely has Locking Diff.

GLuck. Jay
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post #10 of 32 Old 11-26-2019, 12:48 PM Thread Starter
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If it has a manual locking diff. It is missing all components on wheel hub to lock it? The big gear #43 in diagram is just spinning on shaft.

Last edited by Shortlid; 12-02-2019 at 12:27 AM.
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