Search found 595 matches
- Tue Jul 07, 2020 9:28 am
- Forum: Late model JD crawler technical support
- Topic: 450C drive lagging then nothing
- Replies: 5
- Views: 4998
Re: 450C drive lagging then nothing
A C is more difficult to diagnosis vs a B as the steering clutches are operated by the same pump as the transmission. We start by checking the transmission operating pressures and adjust first. If pressures are poor can be many causes but we check the steering clutches for leaks first. From there we...
- Sun Jun 28, 2020 9:44 am
- Forum: Late model JD crawler technical support
- Topic: 350B shifting problem
- Replies: 4
- Views: 3956
Re: 350B shifting problem
Try engaging your reverser then stepping on the clutch. At times the Tranny gears are not lined up to shift.
- Thu May 14, 2020 10:46 pm
- Forum: Late model JD crawler technical support
- Topic: 450C Crawler w/Backhoe blowing hydraulics
- Replies: 9
- Views: 6575
Re: 450C Crawler w/Backhoe blowing hydraulics
Here is my understanding of how a hoe hydraulic system should be plumbed Pressure oil to loader valve Return line from loader valve to tank Power beyond fitting installed in loader valve Hoe supply line installed into power beyond Hoe return line tied into return side of tank, tee with loader return...
- Mon Apr 27, 2020 6:23 am
- Forum: Late model JD crawler technical support
- Topic: 3325 winch
- Replies: 3
- Views: 2943
Re: 3325 winch
This would indicate the clutch portion is not releasing. You need the pull the cover and remove the clutch cover (left hand side when standing at back of your crawler) The clutch piston or discs will need servicing.
- Mon Apr 06, 2020 9:10 pm
- Forum: Off-topic discussions
- Topic: trailer connector problem
- Replies: 21
- Views: 17769
Re: trailer connector problem
Try checking the fuse for the brake controller, should be under the hood on a GM, is on my 2010. I use a plug in socket tester from princess auto (Canada) which looks like a 7 blade RV connector that plugs into the truck end and has indicator lights to show what is working or not. Your truck you get...
- Mon Apr 06, 2020 9:02 pm
- Forum: Late model JD crawler technical support
- Topic: 450C Crawler w/Backhoe blowing hydraulics
- Replies: 9
- Views: 6575
Re: 450C Crawler w/Backhoe blowing hydraulics
Is this a loader or dozer? A loader normally uses a power beyond fitting in the loader valve that sends high pressure oil to the backhoe valve, which then gets returned to the tank. A dozer machine often uses a diverter valve so you can either use the dozer or hoe. We have rigged up dozers with flow...
- Mon Mar 30, 2020 6:50 pm
- Forum: Late model JD crawler technical support
- Topic: HLR pulling in neutral
- Replies: 2
- Views: 2243
Re: HLR pulling in neutral
Unfortunately the normal cause of moving as described is problems with the HLR manifold caused by bad bearings. Do you have any transmission fluid leakage between the engine and transmission?
- Fri Jan 17, 2020 7:26 pm
- Forum: Late model JD crawler technical support
- Topic: Winter starting a 450C. Block heater? Tank heater? My options??
- Replies: 21
- Views: 15909
Re: Winter starting a 450C. Block heater? Tank heater? My options??
Drag on a 450 is not much of an issue if your clutch is working properly and stepping it down all the way. The clutch pedal cuts off oil to the transmission for the first portion of travel, then activates the dry clutch behind the engine. So only spinning the engine and hydraulic pump. Our 450C load...
- Mon Jan 13, 2020 7:43 pm
- Forum: Early model JD crawler technical support
- Topic: Transmissions 256 & 396
- Replies: 2
- Views: 2638
Re: Transmissions 256 & 396
We have run into the same problem and had to change the frame rails. We were intentionally salvaging the complete rear end and final drives from a late model diesel and installing early model 4 speed and final drives.
- Sat Jan 11, 2020 7:31 pm
- Forum: Show & Tell
- Topic: Any other 555 "Triple Nickel" owners out there?
- Replies: 5
- Views: 20720
Re: Any other 555 "Triple Nickel" owners out there?
Deere is about the only older skidder worth having for the safety conscious. The older 440 and 540’s had a hand activated parking brake, large wet disc enclosed on the rear of the transmission. For Clark and others brakes were an after thought and probably didn’t last past the first year. I’m curren...
- Fri Dec 06, 2019 9:23 pm
- Forum: Late model JD crawler technical support
- Topic: JD350C question
- Replies: 9
- Views: 7517
Re: JD350C question
With the amount of labour involved to replace why not go new. We have went as far as welding 2 new couplers together and then cutting to maximum length to avoid future rebuilds. We ran Widepads with hoes and turned up to 3-179 engines so we took ever step to improve longevity and reliability. You co...
- Thu Nov 21, 2019 6:37 pm
- Forum: Late model JD crawler technical support
- Topic: 350 B Backhoe Options
- Replies: 4
- Views: 3390
Re: 350 B Backhoe Options
We’ve done a number of conversions with both various models of case and ditch witch hoes. The big case hoe is about the best you can get although I have a Vermeer hoe loose that is just slightly bigger. We did try the smaller and older ditch witch and case hoes, they worked but we ended cracking the...
- Mon Nov 11, 2019 10:49 am
- Forum: Late model JD crawler technical support
- Topic: 555G what plugs to pull and location to drain transmission hydraulic oil
- Replies: 8
- Views: 7548
Re: 555G what plugs to pull and location to drain transmission hydraulic oil
On the G series machine the transmission is a large tub that holds the transmission and steering clutches. One big common open cavity. Holds a lot of oil.
- Fri Nov 01, 2019 6:07 pm
- Forum: Late model JD crawler technical support
- Topic: JD450C third head gasket This is getting old
- Replies: 168
- Views: 170040
Re: JD450C third head gasket This is getting old
I would recommend going the 4239 route. They have more torque at low RPM’s. We transplanted a natural 4239 into our yard 450C and works real nice. They seem to start easier as well. We just salvaged 2 of them from 450’s we got in and installed 4219’s. Both machines had main engine clutch issues so t...
- Wed Oct 16, 2019 8:18 pm
- Forum: Late model JD crawler technical support
- Topic: 9300 backhoe
- Replies: 1
- Views: 2297
Re: 9300 backhoe
I’m not sure if I’ve seen a loader with a diverter valve, normally a power beyond valve (screws into loader valve) would be used to allow simultaneous flow to both loader and hoe. The loader power beyond valve doesn’t fit a Dozer valve. We’ve installed hoes on both 350 and 450 dozers both with and w...