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How to work a model R

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Max

07-30-2001 20:16:51

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Can someone tell me how to work a model R? Like how to start the pony motor and how to use that to start the big engine. Also what the 2 levers are on the left side next to the shifter. Thanks

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Joel Williams

08-01-2001 17:01:13

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Re: How to work a model R in reply to Max, 07-30-2001 20:16:51

The correct way to start the big engine, per the JD R manual, is to set the throttle all the way to the rear with the stop pin pulled out. This means that it will be cranking, once you engage the pony, but little to no fuel will be injected. Once the big motor is spinning and you release the compression lever (right lever), you then work the throttle forward a little till the big engine fires and then immediately let off the cranking lever (left lever). I always let the pony run for a few minutes to warm it up but the newer ones go full throttle as soon as they fire up so I guess it doesn't matter. I always let it run a minute to cool down too. Do yourself a big favor and order the operators manual from John Deere. I bought the operators manual, the service manual, and the parts manual for mine and they are not that expensive. I can give you the JD part numbers if you care to get the books. They are really well done. You can see mine by doing a search under Joel Williams in the tractor photo section. These are really great tractors for sure.

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Brendon

08-01-2001 15:21:45

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Re: How to work a model R in reply to Max, 07-30-2001 20:16:51

Hey Max,

I've got a 51 R, and Dave is correct in his procedure on starting the R. Only thing I can add, is if your R is newer than 50, it won't have the pony motor throttle control. Instead you will have a fuel shutoff valve/mixture control, starter knob, choke control knob and possibly a hand crank ball. The speed is controlled by the engine governor and will run up to max RPM as soon as the engine starts running smoothly.

If the weather is warm outside, usually all I do is fire the pony motor up, check tranny for neutral, push the diesel throttle off idle, and pull the starting lever (most left hand lever in platform) to start the diesel. Mine will fire on the first power stroke every time unless its 20 deg outside.

Hope this helps

Brendon

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George

07-31-2001 19:39:04

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Re: How to work a model R in reply to Max, 07-30-2001 20:16:51

The first thing is make sure the main thottle on the streering column is not in the off position; push it forward until the idle pin clicks, then pull it back against the pin. Second thing is start the pony engine. You pull the knob marked "Start" on the left side of the dash to engage the electric start motor in the pony. The pony motor throttle is a pull button next to it. Once the pony starts, rev it up fully. Then, pull the right lever you referred to all the way back and hold it; it is the decompression lever on the diesel. Then, ease the left lever you referred to back and hold it, to engage the clutch between the pony and the main engine. The main will start cranking. Once it has cranked over several time, let the decompression lever (right lever) go forward, and the engine should start shortly. Then, let the clutch lever (left lever) go, reduce the pony engine speed, then push the pony throttle all the way in to stop the pony engine. By the way, make sure the main transmission is in neutral! The main clutch is the long lever on the right side of tractor; back to disengage, forward to engage. Good luck!

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dave

07-31-2001 20:00:03

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Re: Re: How to work a model R in reply to George, 07-31-2001 19:39:04

just one note, if starting in cold weather it is a good idea to let the pony warm up for 3-5 minutes, and crank the big engine over a few times with the compression released and the fuel shut off. This produces more heat in the combustion chamber, and will help it start better. Have fun with it!

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