John deere 4400 4x4

Danney970 · Jan 4, 2017

Anyone on here know anything about a add on mud hogg for the 4400. I just bought on with it on and was wondering

JD Seller · Jan 4, 2017

Lots of switches and such to make it work. They will make a little machine go in the mud but your still limited because of power. Also the tractor drive belts will limit you too, with all JD 4400 being gear drive. You have to keep things adjusted right or the unit will fight the mechanical drive.

1206SWMO · Jan 5, 2017

A neighbor had a 1977 4400 JD...In 1981 it rained and rained at the
start of the wheat harvest....He had 1000 acres of wheat to mud
out so got a Mud Hog and terra rice tires..It was short of power so my brother
and I put a turbo on for him in my yard..It was a mud eating machine
but it still got stuck a few times...That fall it rained and rained so most of the 1000 acres
of double crop beans had to be mudded out...I had him and his bother whom had
a 7700 RWA JD cut 100 acres of beans for me that Fall and each got stuck several times.
Over the years I have seen 5-6 4400's with Mud hogs or Gilcrest Pushers..

4520BW · Jan 5, 2017

I have never seen a gear drive machine with 4x4. So how do they power the wheels and keep the speed the same? There was a lot of 66 and 7700 hydros with mud hogs added around here. Guess anything is possible after seeing TimS 60! Somewhere I have a mechanical 4x4 set up that fits a 4840.

MikeinKy · Jan 5, 2017

I don't know how they work, but I was told at one time that the JD 4400 was the only gear drive combine that you could put a mud hog on.

AJB-830 · Jan 5, 2017

They could also be put on a JD 4420. I met a guy at our local elevator who said he had one on his 4420 several years ago. From what he said they run off of a separate hydraulic system like a hydro that just powers the rear drive wheels. I should have asked him how they sync the rear drive speed to the speed of main drive wheels. I won't see this guy until next summer otherwise I would ask him. It was at the time I got my 4420 and I was surprised that you could put a mud-hog 4 wheel drive unit on the 4420 gear drive. Al

JD Seller · Jan 5, 2017

They have a separate hydraulic system that applies so much pressure/flow to the rear drive wheels. There are switches that get hooked to the clutch pedal and gear shifter that engage the hydraulic units in the correct direction. I have drive one or two of them. When you let the clutch out the rear wheel drive will kick in first and you can fell it pushing a little. When you shift to revers it does the same thing. You could not drive it engaged in road gear. IRC they are limited to 8 MPH.

Danney970 · Jan 5, 2017

There is a high pressure pump mounted on the left side that drives the rear axle. I guess there are switches mounted on the transmission that controls the pump out put according to what gear you are in. The rear axle appears to de very similar as to the one under my gleaner f2 witch is also a 4x4 but a hydro.

John deere 4400 4x4

Danney970

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JD Seller

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1206SWMO

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4520BW

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MikeinKy

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AJB-830

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JD Seller

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Danney970

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