Need advise on running in a new JD tractor

Bob in Australia · Mar 15, 2013

I need advise on running in a new JD6330. It is my first new tractor, so previous owners have run in all my previous tractors. I traded a JD3350 with a lot of hours on this new tractor.

This is a utility tractor and we run a no till operation so opportunities for fully loading it are a bit limited. I can probably borrow a heavy implement from a neighbour to give it a good work out

Whichester1 · Mar 15, 2013

The operators manual should provide instructions. Standard procedure with diesel engines is to run them in under power.

Bob in Australia · Mar 16, 2013

The handbook has lots of other detail, but not much about running the engine in. The detail is on checking bolt toque and not changing the run in oil until at least 100 hours

I have successfully run in diesel engines in Toyota pickups. Did this by varying the revs and not working really hard early on, and not doing high speeds for first few thousand miles. Nephew who trained as a loco mechanic says that is also how they run in diesel locos

Fred Gross · Mar 16, 2013

I would not run it only at WOT and heavy load for break in but vary the load and RPM"s a bit....and no long periods of idling and light loads. You want to keep the engine working and warm so you don"t get varnish build up on the cylinders. If you have the flexiblity and implements you might consider 1-2 hours at medium load and 90% of rated RPM"s, another 1-2 hours with same load and 100% RPM"s, then step up to something that really works the tractor and run it like that for an hour or less. Cool downs and warm ups in between are good too.

I can also share I just toured the waterloo engine plant where they build 9L and 13.5L engines...every one goes on the dyno and runs for 20 minutes at light load and another 20 minutes at full load. Can"t say they do this at the 4.5L engine plant but I would expect they do something similar, so your engine has likely already had a little bit of "WOT" running.....

tanman_2006 · Mar 16, 2013

On pickups I vary my speed ~10 mph and occassionally might down shift and rev it for a mile in between.

Say I start at 45mph, run for 5 miles, give it moderate accel to 55 for a few miles, cruise there for around 5 mile, back off to 50 for a few miles then give it heck to 60mph and cruise for ahwile.

I repeat this a few times with dropping it out of high gear/OD a few times.

Our local mechanic said to hook on to something like a disk, start pulling it 2-3" deep at low speeds/ ~75% rpm, pick up speed w/ rpm until its maxed over a pass, go up a gear and repeat until your disking at 8-9mph. Take a bump stop out and repeat until you feel the tractor really getting loaded.

If you have a big drill load it 1/2 full of seed or fertilizer and pull it, essentially a varying load and you can vary speed. Then load it full and vary speed.

Cliff Nelson · Mar 17, 2013

Avoid excessive idling and don't lug the engine hard. Vary the load and speed but don't be afraid to work it. This can be done with the same tillage implement using different gears.

Need advise on running in a new JD tractor

Bob in Australia

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Whichester1

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Bob in Australia

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Fred Gross

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tanman_2006

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Cliff Nelson

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