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blower no go


littlewing's Avatar
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Join Date: Jan 2009
Posts: 2

01-21-09, 07:17 PM   #1  
blower no go

Have a MTD 318-850 snowblower. Runs great. Wheels just stopped turning. Appears the drive gear on the axle is loose. Probably needs new planetary gears. How does the axle come apart to access and tighten this gear? Downloaded parts manual. Procedure not clear.
Is there any way to tighten the chain?

 
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indypower's Avatar
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Join Date: Jul 2006
Posts: 754
NH

01-22-09, 06:20 AM   #2  
First of all, you have no planetary gears. Just gears for the drive chain. You stated the axle is loose. You need to replace the 2 axle bushings # 941-0490. The machine is a 1988 and has seen 20 years of use. The bushings are plastic and wear out fairly quickly. Remove the wheel. (this could be your biggest chore with 20 years of rust on the axle shaft). Then pry out the old bushing with a flat screwdriver.

 
littlewing's Avatar
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Join Date: Jan 2009
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01-23-09, 10:08 AM   #3  
no-go

Thanks for the quick response, Indypower. Actually it would appear this model is closer to 1978 and the manual I downloaded looks very faithful to the real thing. It is the only manual of the three which match the model number which illustrates the differential - therefore planetary gears. Axle is not loose. The differential unit is loose on the axle.

 
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