Need help, removing axle pin st824 - Snowblower Forum : Snow Blower Forums
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post #1 of 23 Old 01-29-2015, 12:40 PM Thread Starter
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Need help, removing axle pin st824

Hello,

So I bought a new bearing for the left side of an ariens st824, the side with the differential. I tried removing the pin with a hammer and punch out. But I think, not sure, if the pin pin is grooved or tapered, and I think I knocked it the wrong way. Now I cannot get the pin to go out the other way, and the end looks mashed like I expanded the end of the pin and now it will not move. This is for the pin that goes through the black differential hub.

Are these pins tapered or grooved? How can I fix this (angle grinder)?
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post #2 of 23 Old 01-29-2015, 01:27 PM
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I would try drilling it out, increasing in bit size a little at a time until you reach the diameter of the pin.

Ray
1962 Ariens 10ML60
1979 Toro 524
1975 MTD Snowflite 4/22
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post #3 of 23 Old 01-29-2015, 02:02 PM
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jenks, I've fumbled through getting a few of these out and I've never seen a tapered pin. They are correctly supposed to be roll pins that have a slight seam. Problem can be if PO installed it with great authority and marred one end. Then you want to knock it the opposite way. Some were actually bolts that the head and nut fell off and there's a true solid piece stuck in there. If it's a true roll pin in there, it will have a slight hollow in the middle (if not mangled by the previous owner). I've had good luck trying PB Blaster every couple hours to degrade the grease and debris that may have set up inside the hollow. Once I could get a wire through it they usually will knock out because now the pin can compress a bit with the slit. As Ray said, drilling may be required. If it's a real friction/roll pin, be advised they are hardened steel. Drill with a bit of oil and slow with clearing shavings. They can be a bugger to get to with a full size drill. I sometimes use a little 1/4" hex b&d screwdriver with small bits.
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post #4 of 23 Old 01-29-2015, 02:32 PM Thread Starter
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So should I try to keep going in the direction that got the pin out a little? Is the hole that holds the pin not tapered? Basically, can you knock these pins out by hitting them on either side?

Or should I just jump right to drilling it?
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post #5 of 23 Old 01-29-2015, 02:50 PM
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It's not a tapered hole so you should be able to knock it out in either direction unless it's so mashed on one side it not going to come out that way as jt mentioned. I would try to knock it out a little more like jt said. If no go, drill it.

Ray
1962 Ariens 10ML60
1979 Toro 524
1975 MTD Snowflite 4/22

Last edited by Ray 1962 10ML60; 01-29-2015 at 04:17 PM.
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post #6 of 23 Old 01-29-2015, 03:14 PM Thread Starter
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Quote:
Originally Posted by Ray 1962 10ML60 View Post
It's not a tapered hole so you should be able to knock it out in either direction unless it's so mashed on one side it not going to come out that way as jt mentioned. I wild try to knock it out a little more like jt said. If no go, drill it.
Thank you, do I need to pull the knob out for the differential first? Not pull it off put in the out position? Or does this matter when taking out that pin?
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post #7 of 23 Old 01-29-2015, 03:27 PM
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STOP! It is a tapered pin. I just changed the bearings on my ST824.

From the service manual: Remove groove pin that secures lockout assembly from left hand axle and lockout assembly from shaft. (Pin is tapered and must be driven from the small end.)

The roll pins are not tapered but this pin is.
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post #8 of 23 Old 01-29-2015, 03:39 PM Thread Starter
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Quote:
Originally Posted by AandPDan View Post
STOP! It is a tapered pin. I just changed the bearings on my ST824.

From the service manual: Remove groove pin that secures lockout assembly from left hand axle and lockout assembly from shaft. (Pin is tapered and must be driven from the small end.)

The roll pins are not tapered but this pin is.
Got it, so I am either going to use an angle grinder to smooth out the mashed end and then hit it out, or just drill out the hole pin, one bit size at a time.

Is it just me or was it hard to tell which side is the smaller tapered hole side?
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post #9 of 23 Old 01-29-2015, 03:46 PM
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Originally Posted by jenkinsm2 View Post
Is it just me or was it hard to tell which side is the smaller tapered hole side?
It was hard for me to tell too. If I hadn't read the manual before I doubt I would have noticed.
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post #10 of 23 Old 01-29-2015, 05:05 PM
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I got lucky with mine. You can't tell it is tapered until after you get it out. Once you break it free it will come right out.

Once you get it out you will find the small hub has 2 bronze bushings in it where it slides over the long axle. Those might be worn as well.

Please direct all snow blower questions to the forums and not to me with PMs.
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