Auger Brake Arm Coming Loose - Snowblower Forum : Snow Blower Forums
 
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post #1 of 6 Old 12-30-2018, 01:04 PM Thread Starter
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Auger Brake Arm Coming Loose

Hi all,

I'm new to the site and hoping you can help. I recently took on a well used 28" Craftsman snowblower (536.886811, circa 1993). The engine runs great, but the one issue that I have is that the auger won't disengage. I dug into it today and found that the old auger brake pad was broken off and rattling around inside. I have a new brake pad to install, but the reason it broke is the bigger issue. This model has curvy brake arm rod that the pad attaches to and pushes down on the belt. The rod is attached to a long nut, but there doesn't seem to be anything to keep it firmly placed correctly in the nut, it slides out.

I attached pics. In the first one you can see that the pin that holds the brake pad is centered on the pulley. In the second, it's off center because the arm is sliding out of the long nut.

Does anyone happen to know how the rod is supposed stay held correctly by the nut without sliding out? What am I missing?

Any ideas are very appreciated.
MattC
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post #2 of 6 Old 12-30-2018, 02:06 PM
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Hey Matt,

I believe that once you install the brake wedge and adjust it, the wedge itself will keep it centered. That arm doesn't need to lift very high to release the brake, so it really can't slide out too much once it's all together.

GLuck, Jay
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post #3 of 6 Old 12-30-2018, 04:29 PM Thread Starter
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Thanks, Jay. I'm putting it back together now and will test out your theory and let you know. I see you're from Walpole. I'm in rural NJ now, but grew up in Wellesley and went to Xaverian (not too far from you). I like where I live now, but really miss MA.
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post #4 of 6 Old 12-30-2018, 05:03 PM Thread Starter
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Back to the drawing board

It didn't work the way I had hoped. Ir was working at first. The auger engaged well, but once I let the auger handle go it looks like the arm slid out of the nut and the pad melted like butter against the pulley. See pics. (not sure why all of my pics are sideways).

I'm tempted to solder the auger arm inside the long nut and leave the nut a little loose so it would have the range of motion in needs to move with engaging/disengaging the arm.

Any other thoughts?
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post #5 of 6 Old 12-30-2018, 09:10 PM
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OUCH!!!!!!....... That Brake wedge goes INSIDE the pulley 'V'.... And the Belt goes around/over that arm..... A spring should pull that arm down, engaging the brake, and activating the augers SHOULD lift that arm up, disengaging the brake. Do you have more of those brake wedges?? Any damage to the belt?? looks like the brake wedge took the hit.... It's a pretty simple design and worx well when it's assembled properly. Do you have the model & serial number?? I'll see if I have one of those machines or a parts/service manual for it.

GLuck, Jay
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post #6 of 6 Old 12-31-2018, 01:23 AM
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Quote:
Originally Posted by MattC View Post
See pics. (not sure why all of my pics are sideways).
Try setting your phone or camera to take SQUARED pictures, should cure your issue.

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