There is a tensioner adjustment on the top belt there are two belts on the bolens its just under the fraim just folloe the linkage rod un do the rod and twist it
Either the belt routing is incorrect or there is a tensioner which needs adjusting. Recheck your belt installation. Oh, it could be the wrong belt, too.
Okay. What was the problem if this didn't work?
Well, it still sounds like a loose belt. The lower speeds are going to have smaller diameter drive pulleys (or whatever) and the belt is going to need more tension on it to make up for the smaller pulleys.
I'm not familiar with the details of this drive system. Do you have an internet link for the diagram you have so I could take a look?
It looks like it could be the linkage (loose/worn/maladjusted) from the shifter to variable speed pulley. I have never worked on this type drive, so I can't give you any specifics.
The link below looks like a site where you could ask a question of experts on this specific mower.
http://lawnandgarden.owneriq.net/manuals...
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I have not found the problem, however there is not a tensioner and I rechecked the belts, twice. The routing of the belts is straight forward from the motor shaft to the viriable speed pulley. I have inspected the variable speed pully and the center sheeve floats freely and has no sign of wear. Maybe I didn't describe my problem thoroughly so I'll try again. Initially upon reassembly the mower belt are tight, and pulls off successfully in one of the high speed setting 6, 7 or 8. When I depressed the clutch and select lower speed 2,3 or 4 it begins the slipping. I have use diagrams for the Bolen model 13AN683G163 and every thing is assembled correctly.
URLhttp://www.outdoordistributors.com/pdf/M...
i need a diagram of how to fit a drive belt on a gutbrod riding mower
my Husqvarna hydrostatic 48 inch riding mower slows down going uphill but speeds back up on level ground. the belt seems very loose.
shift level stuck
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