Friction disk replacement 1983 Simplicity 870 - Snowblower Forum : Snow Blower Forums
 
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post #1 of 8 Old 12-15-2018, 10:05 PM Thread Starter
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Friction disk replacement 1983 Simplicity 870

I'm working on my 1983 Simplicity 870. I have to change the friction disk. I originally posted in the Simplicity section but haven't gotten any responses. I waited a good amount of time before posting here, but it is repair and maintenance issue so maybe it will be better off in this section. I'm looking for the service manual for my machine. Can anyone out their help me out. It will come in real handy for this job and I'm sure plenty for future repair and maintenance on it. The machine is 35 years old now, so having that service manual will come in handy for sure. I hope to keep this machine another 35 years, so I will certainly need the service literature.
Also if anyone else ever needs it I will be happy to help them as well as I have been spending much of my time in the Simplicity section.
I have already contacted Briggs and Simplicity and they did not have the service manual, the operator's and parts, yes, but not service. So I'm hoping I get lucky and someone here will be able to come to my aid. Thank's.
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post #2 of 8 Old 12-16-2018, 12:39 AM
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Is your transmission similar to this one ?? Not real happy with the video and he doesn't show how to take it apart but you'd need to remove the shaft the friction wheels slides on.


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post #3 of 8 Old 12-16-2018, 01:32 AM Thread Starter
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Its similar. It looks like I'm going to have to remove the bearings that hold the hex shaft in place and than pull it out right or left and may have to disconnect the chain and loosen the part in the center to release the friction disk assembly. It doesn't look too bad and I should be able to figure it out. Although it would be nice to have the procedure for it. Thanks for sharing the video. The new disk is on its way. If anyone see's this thread and happens to have the old service manual in pdf they can send me while I'm waiting for the part in the meantime, I would greatly appreciate it.
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post #4 of 8 Old 12-16-2018, 05:17 AM
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post #5 of 8 Old 12-16-2018, 06:31 AM
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good one man! i'd jump on that listing if i was the op. as finding a free one, i believe will be very slim if not impossible for a rare and obsolete machine
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post #6 of 8 Old 12-16-2018, 07:22 AM
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A machine of that age may need a new hex shaft and/or bearings because wear occurs on the ends where the bearings sit.
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post #7 of 8 Old 12-17-2018, 01:21 PM Thread Starter
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Quote:
Originally Posted by DriverRider View Post
A machine of that age may need a new hex shaft and/or bearings because wear occurs on the ends where the bearings sit.
Thanks for the reply. The machine was in overall great shape. I inspected the gearbox and checked for play. Its all good. The drive actually works really well even with the rubber disk in as bad shape as it is. First gear is the only gear that had issue's. Its going slower than it should and hesitates from slipping.
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post #8 of 8 Old 12-17-2018, 01:24 PM Thread Starter
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Update,
Great news
Briggs and Stratton has sent me a paper copy of the service manual pro bono, I just received it. I have to hand it to them, great customer support. Its the 1983 first edition. If anyone ever needs one PM me and I'll be happy to pass it along.
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