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How do I replace the roll pins that connect the impella to the shaft on a snowblower

I have a 9hp craftsman snowblower (model 536.887990). The pins that connect the impella to the shaft broke. I have the replacement pins and can see where they need to go but I can;t get enough leverage to push the broken pin out. I assume I need to disassemble something, can someone explain how to replace the pins.

Craftsman , Electric Snowblowers , Snow Removal Equipment
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3 Answers from these members:
Manage My Life
When pins or bolts break inside it can be a bear to get them out. I found a previous post that tells you what tool to use to get this out. I attached the link below. Hope this helps!
by Manage My Life
January 15th, 2011
Answered in 7 minutes
0 votes
prandall prandall
Thanks for the reply. Can someone explain how to remove the auger assembly and impeller. I removed the 3 bolts from each end of the auger housing but the assembly wouldn't come out. The assembly is free but the shaft seems to be held in by something. Is there something else I need to remove or should it just pull out (I ididn't pull very hard as I didn't want to break anything).
by prandall prandall Earned 22 community points in Craftsman
January 15th, 2011
Answered in 26 minutes
-1 votes
Mark T
Thank you for your question.

Usually it is difficult to replace the pins with the snow blower assembled. You will have to remove the auger assembly from the housing. To remove the auger assembly, please follow the steps below.

Remove the spark plug wire and belt cover.

Disconnect the chute control rod.

Remove the belt and the auger control cable if it is attached to the blower head.

Locate and remove the bolts that attach the blower head to the drive assembly.

Once the blower head is removed tip it onto the nose so the pulley is up.

Remove the pulley from the shaft. It should have a set screw on the backside, maybe two. I recommend spraying the shaft and pulley with a penetrating oil to help with removal. I have seen in some cases a puller is needed to remove the pulley because of rust.

Once the pulley is removed you can remove the bolts securing the bearing. Then slide the bearing off the shaft. This can be difficult to do if the shaft is rusted. I recommend cleaning the shaft with emery cloth before trying to move the bearing. You might also need to use a puller here also.

Remove the bolts securing the bearing for the left and right auger shaft. Then slide the whole assembly out of the blower housing.

Then use a drift punch to remove the broken pins.

Tap the new pins in with a hammer.

Just reverse the above steps to reassemble the snow blower.

I have found a video that should give you a little more confidence in doing the repair.


I hope this is helpful.

Here is a link to order any parts you need.

Sears Parts Direct


If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services


Thank you for using Manage my life.

Mark T.
by Mark T Earned 58,303 community points in Craftsman
January 16th, 2011
1 votes
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