Good Day To ALL! Well today I replaced the belt on this little bobcat I bought. The new belt is about the same size lengthwise, maybe a tad shorter. but it is about a quarter inch wider. My problem is I disassembled the sheave on the engine as the book says. Then split the jackshafts like the book says, put the new belt on and reassembled the jackshaft part. No problems there, but when I went to put the sheave half back on the engine drive, no way can I get it in far enough to get the washer / cap back on to put the snap ring on to hold the sheaves on. The book is no help, it just says reassemble he unit. So my question is how in the world do I get the outer sheave pushed in far enough to reassemble the outside part? Thanks for all the help I've gotten in the past and Thanks in advance for your help on this one! Steve
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6brnorma
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- Jul 13, 2011
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Use a pry bar to pry open the jackshaft sheave…….drop a 5/8 socket down inside to hold it open……that will give you enough slack to complete the re-assembly. Do not forget to remove the socket when you are done. Do not stick your fingers inside the jackshaft sheave when removing the socket. Do not pull the pry bar towards your face when attempting to place the socket in the sheave.
Thanks 6brnorma! I'll give that a try right after lunch.
I just hook a Coffing hoist to the rear frame and to the belt and pull it into the front pully I use a 15/16 socket to hold it open .
Well it took me about 2 hours just to get the half of the rear sheave put back onto that darn thing!! To be honest, once I got the right combination of bars and sockets It only took about 10 minutes once I got the front pulleys spread. If I ever have to do this again I might try that hoist trick. Now I'll just keep working on all the dumb things the guy before me did to this machine. I understand fully about half a$$ing something to get by to the end of the day or week, or even till the season is done. Then fix it right. This poor thing looks like it was just patched up to get by for the last 30 years! I'll probably only put 100 hours a year on this little machine. How long does one of these belts last?
6brnorma
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- Jul 13, 2011
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Belt will last for many thousands of hours if everything is correct on the machine. The things that will chew up a new belt are three things mainly. Sheave face imperfections, belt mis-alignment and (the worst one) worn bushings in the jackshaft sheave. Worn bushings will destroy a new belt in the matter of an hour or so.
Well Thanks Again! If it lasts that long, I'm probably good for the rest of my life! As long as I did everything right. I will just have to keep the bushings lubed.
