Search found 2505 matches

by Jim B
Wed Feb 25, 2026 2:00 pm
Forum: Late model JD crawler technical support
Topic: 450c leaking
Replies: 8
Views: 1254

Re: 450c leaking

good to hear you got it figured out.
by Jim B
Wed Feb 25, 2026 6:25 am
Forum: Late model JD crawler technical support
Topic: 450c leaking
Replies: 8
Views: 1254

Re: 450c leaking

I am guessing you have the TM1102 John Deere Technical Manual, I do not have a copy of that so I can direct you to an actual page. The bushing is in the bore of the housing, and I am not surprised you can't see it. From looking at my 450E manual and the TM1102 index I think you should find the info ...
by Jim B
Tue Feb 24, 2026 10:40 am
Forum: Late model JD crawler technical support
Topic: Hydraulics whining
Replies: 8
Views: 1532

Re: Hydraulics whining

Crossed lines would do it, Glad you found it. Good luck with your machine.
by Jim B
Mon Feb 23, 2026 6:14 pm
Forum: Late model JD crawler technical support
Topic: 450c leaking
Replies: 8
Views: 1254

Re: 450c leaking

You may want to consider replacing the bushing behind it. A worn bushing will shorten seal life.
by Jim B
Mon Feb 23, 2026 5:28 pm
Forum: Late model JD crawler technical support
Topic: 450c leaking
Replies: 8
Views: 1254

Re: 450c leaking

Check out item key #15 in the parts catalog page linked below to see if this is the seal you are looking for.

https://partscatalog.deere.com/jdrc/sid ... Id/1428497

AA5607R: 1/8 width, 1" ID. 1-1/4" OD
by Jim B
Thu Feb 19, 2026 2:41 pm
Forum: Late model JD crawler technical support
Topic: Hydraulics whining
Replies: 8
Views: 1532

Re: Hydraulics whining

Pressure is supposed to be about 2250 psi isn't it? When you say deadheading is that when the cylinder stops traveling or does the gauge keep climbing if you hold it in? Do you know if the relief valve was disassembled during the rebuild? Did you rebuild it or did a shop? I it is a shop you should b...
by Jim B
Wed Feb 18, 2026 6:25 pm
Forum: Late model JD crawler technical support
Topic: 1975 450B Oil Filter Housing Leak
Replies: 4
Views: 910

Re: 1975 450B Oil Filter Housing Leak

#8 the threaded nipple holds it. Remove the filter, it threads on to that nipple. The nipple has a hex below the filter threads to use a wrench on. You can ask your dealer to do a system search and see if they might locate one someone has setting on a shelf. Also the dealer might be able to find out...
by Jim B
Wed Feb 18, 2026 5:27 pm
Forum: Late model JD crawler technical support
Topic: 450c problem
Replies: 1
Views: 741

Re: 450c problem

The 450C has wet steering clutches. They are under pressure all the time other than when you pull the lever back to turn. When the lever is pulled back the pressure on the clutch is released. If pressure to the clutch is lost, the clutch releases and the track won't drive. That side could have a blo...
by Jim B
Wed Feb 18, 2026 5:20 pm
Forum: Late model JD crawler technical support
Topic: 1975 450B Oil Filter Housing Leak
Replies: 4
Views: 910

Re: 1975 450B Oil Filter Housing Leak

Welcome to the boards. When you say the housing moved with the filter it sounds like your engine has the engine oil cooler that mounts between the filter and block. It likely bent/deformed and you will need to get another. The link below should take you to the parts catalog page with the oil cooler ...
by Jim B
Wed Feb 18, 2026 5:00 pm
Forum: Late model JD crawler technical support
Topic: 350 steering link
Replies: 6
Views: 1653

Re: 350 steering link

rhbarsto wrote:
Wed Feb 18, 2026 2:46 pm
not for nothin but whats a hiem joint?
Here is a link to a Heim Joint web site.

HeimJoints.net
by Jim B
Tue Feb 17, 2026 6:13 pm
Forum: Late model JD crawler technical support
Topic: Hydraulics whining
Replies: 8
Views: 1532

Re: Hydraulics whining

I can't see it. Any ideas from the person that rebuilt it and used a part without the port? If I couldn't find another port, I would look at getting a Tee into a cylinder connection using true hydraulic fittings, not hardware store pipe.
by Jim B
Tue Feb 17, 2026 9:07 am
Forum: Late model JD crawler technical support
Topic: Hydraulics whining
Replies: 8
Views: 1532

Re: Hydraulics whining

Do the pressure checks and see what the relief is set to. To high could damage or destroy the pump.
by Jim B
Mon Feb 16, 2026 3:25 pm
Forum: Late model JD crawler technical support
Topic: 550A Cylinder Rings
Replies: 1
Views: 823

Re: 550A Cylinder Rings

What does the diesel shop say it looks like? Problems in/with the ring grooves of the pistons? Wrong end gaps? Wrong rings? Installation? I would have expected some top ring damage from starting fluid detonation. Are you having new liners, pistons, and rings installed or trying to reuse some parts.
by Jim B
Mon Feb 16, 2026 3:21 pm
Forum: Late model JD crawler technical support
Topic: Trans cooler.
Replies: 6
Views: 1266

Re: Trans cooler.

Another downside to tarps is the poly tarps will hold moisture under them, at least around here.

after checking for water as Leonard mentioned, running them, long enough to get up to operating temperature and keeping it there for an extended time helps evaporate water out.
by Jim B
Sun Feb 15, 2026 6:44 am
Forum: Late model JD crawler technical support
Topic: Trans cooler.
Replies: 6
Views: 1266

Re: Trans cooler.

Check out your manuals, but I believe the transmission oil cooler is mounted on the right side of the radiator and is air cooled, not coolant cooled, the same as my 450E and wheel tractors. If you have water in the transmission fluid, it is getting there a different way.