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Discussion Starter · #1 ·
Hi Guys and Gals,
I am using a model 8253 Lawnboy mower 1976 vintage and it is
self propelled with drive rollers that contact the rear wheels.
I got this mower at a Garage Sale it runs well but only one drive
roller contacts the rear wheel when the handle is engaged in self-
propelled mode. I can not figure out if I have a part missing or if
a spring is installed wrong on the side that does not contact its
drive roller. Anyone have any knowledge of this type of self
propelled mechanism? When the top handle is moved forward it
brings the rear wheel forward to contact the drive roller, only
the right side does this the left side wheel does not move forward
to contact the drive roller whats broken? Thanks in advance for the
info. :thanku:
 

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There is a stiff spring on the left side that helps to ''even out '' the wheel bracket.
Sometimes those break.
But you said it is there, I don't think you can install it wrong.
On partstree it is item #75 in the diagrams.
Is the white bearing by the drive rollers still good ?
Just throwing out ideas here.
 

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Discussion Starter · #3 · (Edited)
Thanks Ron for the reply!
Yes the bearing is stiil good That stiff spring you
mentioned, there are a couple of holes on that
side that spring could be attached to but I am not
sure what holes it is to be properly installed in. I looked
at the parts diaghram and it does not show where and exactly how
that spring attaches. I had moved it and had the wheel contacting
the drive roller but it would just stay there and not release when put
in neutral with the handle. ????? Man I could use a picture of one of these
with the spring in the proper place to see if any thing here is missing or
out of whack!:banghead3 PS Love your Lawn Boy Restoration that is a very fine
piece of work and how at the end of the pictues you got it to look like
a Ford Mustang!!!!!!!! Now thats some real magic! :trink40: Nice Mustang ny the way!
 

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Discussion Starter · #4 ·
Anybody else here have any suggestions or have a picture or diaghram that shows where that spring on the left side goes, I would greatly
appreciate it .:)
 

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I can't help with a pic, have 3 clunkers in the lean too, none have springs on em.
I was thinking the spring fit on a tab at the axle, then went in a slot on the height adjust bracket,
Handbook says to adjust the wheel and roller 3/16'' apart.
Afraid that's all I can tell you.
Yes, it was amazing to transform the Lawn Boy into a Mustang,, LOL
 

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Lifetime Lawn Guy
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I have an 8234, same 1976 model year. I'll take a couple pics of the under side bracket. I was just out rearranging the 'boys in the shed to try and make the most of my space! 11 lawn boys that are all complete with handles take up a lot of ROOM! Will post back in a while.
 

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Discussion Starter · #7 ·
Thanks a bunch KS!:thanku:
 

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Lifetime Lawn Guy
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Alright, it's a lot later than I thought I was going to be back, and I really don't know what these pics are going to show you, but here ya go...



 

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Discussion Starter · #9 ·
Thanks Again Lawnboy KS this helped a lot The spring was on wrong and I
also see that my safety cable and switch up top is missing, the bracket is
still there where it all mounts but someone must have removed this a
long time ago. Pictures are worth a thousand words Thanks! :thThumbsU
 

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Lifetime Lawn Guy
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No problem, glad that helped.

The saftey cable deal may be unhooked for a reason. I've read on here that that interlock usually would fail and would just get disconnected. What it does is move a lever next to the starter that disinguages the recoil mechanism. That way you can't start it when the self propel lever is "on". Mine I took the pics of is actually connected and still works. Mine is also (was) electric start and there's a switch there as well that wouldn't allow the starter to turn as well.

I noticed on mine that the bottom where the spring attaches is almost worn off which will set that spring free, lol.
 
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