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stone 43 roller

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Chewie2105

Member
Joined
Jun 6, 2018
Messages
23
Location
British Columbia
Hi posted this on the roller section but as not a paving roller might have been missed. wanted to reach out again and see if anyone may have any insight, prevailing thought is possibly a hydraulic issue causing the motor to be turned into a pump and then resist not free spin.

Hey anyone familiar with older stone rollers? or have any thoughts

roller works great but keeps stripping out the coupler for the vibration on the drum. seeing as stone has gone belly up had a local company rebuild it, worked well for a while (rental yard so time is relative)

stripped out again, company warrantied the coupler, try again lasts about same time (50 ish hours) and failed again, this time they replaced the small spline coupler and motor with a keyway set up

worked well for a year but last rental it stripped out the keyway out.

pulling the coupler means pulling the drum so is getting very old

eccentric spins freely by hand, bearings all checked out, oil level is correct and clean, drained and refilled each time

popular little machine and hard to replace but consistently causing issues, also has a odd chattering in the wheel drive motor area when switching from forwards to reverse at high speeds, checked out the unit and can not find a issue
 
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Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
12,618
Location
Canada
Some pics. might help to show the coupler you're talking about. First thought is if the hyd. flow and pressure is correct for the roller. Switching direction at high speed sounds like it could certainly cause damage too.
 
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Chewie2105

Member
Joined
Jun 6, 2018
Messages
23
Location
British Columbia
the old coupler has been reworked into a keyway system, keyed shaft on the motor, going into a keyed hole.

I will get some pictures once I take it apart, and try and find some old pics of the shaft, it always stripped the splines out of the drum side not stripped the motor shaft so original thought was a hardness issue.

now suspecting likely more to do with a Hyd issue as seems to run well for a few hours each time before failing
 
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cuttin edge

Senior Member
Joined
Nov 9, 2014
Messages
2,754
Location
NB Canada
Occupation
Finish grader operator
How old is it. Looking at pictures of newer ones, they look like a Dynapac
 
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