Drive chain problem - Snowblower Forum : Snow Blower Forums
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post #1 of 30 Old 01-06-2014, 08:29 PM Thread Starter
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Drive chain problem

C950 the chain that drives the wheels jumped off the sprocket, I got it put back on attempted to load it on my truck using ramps started to climb up the wheels locked up, I backed down tried again and locked up solid the chain came off again, when I'm on flat ground it's fine please help!
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post #2 of 30 Old 01-06-2014, 09:16 PM
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You need an intermediate/jack shaft. The chain is from the sprocket on the axle for the wheels and goes to another shaft with two sprockets on it. One small, about 1 inch and one bigger, about 4 inches.

I will bet that the teeth on the small sprocket are rounded over when compared to the bigger one.

Take a look and see. Then hopefully its still available. We need your whole model number.
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post #3 of 30 Old 01-07-2014, 07:36 AM
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Could just be your chain is old and stretched too. You might have to adjust the sprockets, remove a link from the chain or just replace the whole chain.
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post #4 of 30 Old 01-07-2014, 08:57 AM Thread Starter
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C950-52730-7
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post #5 of 30 Old 01-07-2014, 08:59 AM Thread Starter
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Also if I could find a users manual
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post #6 of 30 Old 01-07-2014, 11:53 AM
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The canadian model numbers for craftsman blowers are difficult to find diagrams for.

Pure dumb luck googling your model number I came up with a cross reference to the change it to a murray number combined with your craftsman number, go here:

Parts and Diagrams for Murray 1695383 - C950-52730-0, Craftsman Dual Stage Snow Thrower (2007)

You need to check the machine out first but I believe you are having a problem with number 236 on the drive system diagram. murray part number 1501237MA
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post #7 of 30 Old 01-08-2014, 04:05 PM Thread Starter
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After removing part 236 I noticed there is another sprocket (bigger) on a short shaft, the shaft is about 4-6 inches long and has 2 sprockets the bigger of the 2 sprockets looks bent I put a bar in on the short shaft and there is play in the bar
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post #8 of 30 Old 01-08-2014, 09:44 PM
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I though the short shaft with 2 sprockets was part number 236.

usually the smaller sprocket --10 or so teeth is damaged/worn.

Could you take a picture?
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post #9 of 30 Old 01-08-2014, 10:34 PM Thread Starter
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It's different then the diagrams there are 3 shafts, hex shaft with the friction wheel and small sprocket, another shaft with a large sprocket that the wheels are on then behind that a short shaft with a large and small sprocket, I will try to get a picture tomorrow thanks for helping
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post #10 of 30 Old 01-08-2014, 10:54 PM
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The diagram isnt the best but number 236 is the short one with 2 sprockets, 1 large and one small. The sprocket directly below 236 in the diagram is the one on the axle with the wheels, it is numbered in a different diagram.

On the short shaft with 2 sprockets on it. check the teeth on the small sprocket for wear/damage or being rounded over. I have done three of them just this year.
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