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puck1263


Joined: Jan 12, 2009
Points: 9

Craftsman 2 stage - half auger won't turn
Original Message   Jan 12, 2009 7:32 pm
Would appreciate suggestion.  Newbie to snow blowing.

My craftsman has started and ran great for the last year.  Today, only half of the auger ("passenger" side) turns  when engaged.  The impeller is still working.  With the engine off, the "passenger" side will rotate nearly one revolution freely, until hitting a stop, which I assume is the engine.  The "drivers" side freewheels.  How do I fix this?  We've got quite a load outside.  Many thanks.  I'll reply with the model # if I can find it.
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hirschallan


If it aint broke don't fix it !!


Location: Northern Hills of NY
Joined: Aug 25, 2005
Points: 327

Re: Craftsman 2 stage - half auger won't turn
Reply #9   Jan 14, 2009 1:48 am
It sounds very much like a gear case problem where the impeller shaft and augers meet.
This message was modified Jan 14, 2009 by hirschallan


nibbler


Joined: Mar 5, 2004
Points: 751

Re: Craftsman 2 stage - half auger won't turn
Reply #10   Jan 14, 2009 9:59 am
Part of the problem description said the augers were turning ... slowly. This may be a problem in expectations. Relative to the impeller the augers are supposed to turn relatively slowly since they are much larger.

I would think that if there is a problem with the worm gear then more than a shear bolt would be damaged and neither auger would be turning. The only other thing I cna think of is that I've seen some augers that have 4 sections, two on each side, they require a total of 4 shear bolts.
puck1263


Joined: Jan 12, 2009
Points: 9

Re: Craftsman 2 stage - half auger won't turn
Reply #11   Jan 14, 2009 8:27 pm
looks like the impeller and shaft to the gear box are spinning...but the auger doesn't move.....so either this model (536.886190) has more than two shear bolts, or gear box broken I guess.
hirschallan


If it aint broke don't fix it !!


Location: Northern Hills of NY
Joined: Aug 25, 2005
Points: 327

Re: Craftsman 2 stage - half auger won't turn
Reply #12   Jan 15, 2009 12:42 am
More than likely a gear box problem if your positively sure that the shaft to the gear box is turning. I took a look at a parts breakdown as per your model number stated and looks like your auger assembly is only a two part system not as Nibbler mentioned possibly a four part auger system.
This message was modified Jan 15, 2009 by hirschallan


Clay


Location: Wis
Joined: Dec 3, 2008
Points: 111

Re: Craftsman 2 stage - half auger won't turn
Reply #13   Jan 15, 2009 10:41 am
Puck, in your original post you said that half of the augers turned, are you saying now that neither of them are turning or is it still just half of the augers?
hirschallan


If it aint broke don't fix it !!


Location: Northern Hills of NY
Joined: Aug 25, 2005
Points: 327

Re: Craftsman 2 stage - half auger won't turn
Reply #14   Jan 15, 2009 3:10 pm
Puck

If you depress the auger lever with the motor off ,spark plug wire disconected and tie something around the lever to keep it engaged (depressed) you then should not be able to rotate the augers by hand. .So if when you have it depressed and the impeller does not move and the augers still spin freely, both sides ,then you have  a gear box issue assuming you have shear bolts in place. If while depressed the impeller moves too then your problem lies in the area of belt and pulley .

This message was modified Jan 15, 2009 by hirschallan


puck1263


Joined: Jan 12, 2009
Points: 9

Re: Craftsman 2 stage - half auger won't turn
Reply #15   Jan 15, 2009 9:39 pm
clay,
Originally, the one side moved some, slowly.  Now, with the shear bolt replaced neither move.

If I engage the auger with the engine off, I can turn both augers , but the impeller does not turn, so I guess gear box.  I have both shear bolts in.
borat


Joined: Nov 10, 2007
Points: 2692

Re: Craftsman 2 stage - half auger won't turn
Reply #16   Jan 15, 2009 10:08 pm
If you're lucky, there might be a locking pin that secures the drive gear to the drive shaft.  If it has sheared, you might just need to replace that.  So, pull it apart and tell us what you find.  Pay close attention to how it comes apart.  Watch for bushings, seals and washers.  Take some digital pics to aid in re-assembly.
hirschallan


If it aint broke don't fix it !!


Location: Northern Hills of NY
Joined: Aug 25, 2005
Points: 327

Re: Craftsman 2 stage - half auger won't turn
Reply #17   Jan 16, 2009 12:37 am
puck1263 wrote:
clay, <BR>Originally, the one side moved some, slowly.  Now, with the shear bolt replaced neither move.<BR><BR>If I engage the auger with the engine off, I can turn both augers , but the impeller does not turn, so I guess gear box.  I have both shear bolts in.

Puck
Lets see some good pics of your problem before the fix.Best of luck,Allan.

puck1263


Joined: Jan 12, 2009
Points: 9

Re: Craftsman 2 stage - half auger won't turn
Reply #18   Jan 17, 2009 4:24 pm
Guys,
Not sure how to take a picture.  Any picture I take will look like a normal unit.  I think I found the cause of the damage, however.  It appears the previous owner used a regular bolt, not a shear bolt in the other half.

I took all the bolts out of the gear housing, thinking it would split in half so I can get to the gears, but it hasn't.  Any good ideas how to take it apart?
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