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Discussion Forum

AC G transmission problem

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Alan S.

12-17-2002 06:44:36

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My G will not shift. The engine will start, but I am unable to shift into any gear. It just will not move! I have replaced the entire clutch,installed new brakeshoes and replaced a broken right axle.What is wrong? and how can I fix it?

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Plant Doctor

12-21-2002 16:04:46

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 Re: AC G transmission problem in reply to Alan S., 12-17-2002 06:44:36  
Alan: Did you figure out what the problem was? I am curious. Happy Holidays!!!
Plant Doctor

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Plant Doctor

12-18-2002 15:46:44

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 Re: AC G transmission problem in reply to Alan S., 12-17-2002 06:44:36  
Alan: We need more information to diagnose the problem. Is your "G" equiped with a hydraulic lift and if so does it work? If it works that tells me the trans input shaft is turning. Can you shift the transmission into each gear? The way I am understanding you is, you can put the trans in gear, but the tractor just will not move. Is this correct? This is just a wild guess, but I would check the ring and pinion. I've repaired three "G's" where the rivets holding the ring gear to the carrier sheared off. It is difficult to tell if this is the problem without doing some disassembling. But if you replaced the clutch and feel it is adjusted correctly and replaced a broken axle my guess is there is a problem in the ring and pinion. Those little transmissions are darn near bullet proof. They use the same gears as some higher Hp tractors with few problems. Let us know what you find.

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12-17-2002 09:40:16

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 Re: AC G transmission problem in reply to Alan S., 12-17-2002 06:44:36  
I'm no expert on G's, but can you get it into gear with the engine not running? If so, I'd guess you have an adjustment yet to do on the clutch. Without the clutch fully disengaging, you won't be able to get it into gear. If it does, try starting it in gear and the clutch depressed. My guess is that you will move in which ever direction gear you have chosen, so don't run through the shop wall. Others may be of more help.

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12-18-2002 02:48:25

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 Re: Re: AC G transmission problem in reply to Scott, 12-17-2002 09:40:16  
The tranny is virtually the same as an AC "B" so someone with experience in them may be able to help you. Personally, I've never had transmission problems with my G, but it sounds like yours may have some serious internal damage. It takes some force to break and axle.

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