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Craftsman Weed Trimmer Repair

I have a 5.5 H.P. Craftsman weed trimmer, model # 536 77360000. I ordered a new part number 740299MA(a "height guide"). The part that was shipped has a bolt that is slighter larger than the diameter of the bolt from the original part. Sears tells me that the original part with the smaller diameter bolt is no longer available. It seems my only alternative is to modify the new part using the original bolt so it can be attached to the trimmer.


The bolt on the new part is spot welded to the "donut", which spins underneath the weed trimmer and comes in contact with the ground. Do I need to remove the spot welds that attach the new bolt to the donut and weld the old bolt in its place (and run the risk that the weld may be imperfect and not perpendicular to the donut)? Alternatively, can I just drill the old bolt out and replace it with the new bolt without welding it to the donut. If the latter alternative works, is there some combination of washers I should use so that the donut will spin properly? Can you think of any other way to fix the trimmer?


Thanks so much


STEVE

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Craftsman , Washers , Lawn Mowers
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2 Answers from these members:
Manage My Life
I'm sorry about the difficulties your having with your CraftsmanWeed trimmer repair. I did some research for you at Managemylife.com and found an expert answer to a similar question that I hope will help until your expert can answer your specific question. I attached the link below.
by Manage My Life
July 30th, 2011
Answered in 11 hours
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Sam A
Thank you for your question on the trimmer.

I noticed in the parts pricing that if you ordered the cone and you also order the shaft. Maybe that will be the answer to the problem you are having because the bolt being welded to the cone should not present a problem but if the threaded end of the drive is different then you will need to have the shaft also.

740299MA HEIGHT GUIDE 1 18.62 18.62 RPDC

- HEIGHT GUIDE ASSY-M.....ALSO ORDER #740300MA SHAFT

- FACT BIN = RPDC, QTY = 1



I hope this will be the answer for the problem you are having with the new part.

Thank you for using Manage My Life.

Sam A.
by Sam A Earned 749 community points in Craftsman
August 1st, 2011
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