Search found 94 matches

by oljoe
Thu Mar 29, 2018 2:21 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 94
Views: 14782

reverser oil flow question

I have a straight 450 that has had a problem for some time that I can’t get figured out. The transmission pump pressure will come up when first started to 130-150 psi. I can shift the reverser from forward to reverse a couple of times and the tractor will move both directions. The pressure starts dr...
by oljoe
Sat Nov 26, 2016 3:49 pm
Forum: Late model JD crawler technical support
Topic: 450 straight HLR problems (long)
Replies: 2
Views: 1579

I removed the accumulator housing to check it and the shift valve. I disassembled to check for scoring or binding in the valves. Everything was smooth and free. There is a small screen that fits in the housing that was damaged with one end of it partially plugging one of the passages. I bought a new...
by oljoe
Mon Nov 14, 2016 12:28 pm
Forum: Late model JD crawler technical support
Topic: 450 straight HLR problems (long)
Replies: 2
Views: 1579

I’m back to square one with a new pump installed. I talked with a mechanic that works on most all brands of older track machines. He didn’t think that the pump was the problem, but I crossed my fingers, forked out $600 and replaced it anyway. It turned out to be a $600 mistake although I have ruled ...
by oljoe
Thu Oct 27, 2016 9:56 am
Forum: Late model JD crawler technical support
Topic: 350B
Replies: 8
Views: 2329

There is a needle valve on the side of the accumulator housing that regulates the shift speed. Chances are that the valve needs to be adjusted. The only experience that I have is with a 450 and it has a plug on the side of the transmission case to access the valve. The valve has a slot for a screwdr...
by oljoe
Thu Oct 13, 2016 2:00 pm
Forum: Late model JD crawler technical support
Topic: 450 straight HLR problems (long)
Replies: 2
Views: 1579

450 straight HLR problems (long)

I have had the motor, clutch housing and front cover out three times since my last post and the top cover off at this time. The first time I removed everything I found a piece of gasket material under the oil cooler bypass valve. I put it back together and it wouldn’t move and the clutch didn’t feel...
by oljoe
Wed Mar 02, 2016 8:40 am
Forum: Late model JD crawler technical support
Topic: JD 450 troubleshooting and general ?
Replies: 5
Views: 2245

It sounds more like you have some worn out parts on the gear selector and or linkage. There is a procedure for adjusting the steering clutches and brakes. It’s on here somewhere. I adjusted mine according to the procedure and then tweaked it a little to fit me better. Check all of the linkage and th...
by oljoe
Fri May 16, 2014 8:01 am
Forum: Late model JD crawler technical support
Topic: Straight 450 reverser problem?
Replies: 2
Views: 1763

Thanks for the reply Tigerhaze. Here is a thread that I started when I had a transmission oil leak. The last page is where I am now but it’s still not working properly. I bought a new transmission line and replaced the cracked and brazed one. That didn’t help. I still have the buzzing noise and I’m ...
by oljoe
Mon May 12, 2014 3:29 pm
Forum: Late model JD crawler technical support
Topic: Straight 450 reverser problem?
Replies: 2
Views: 1763

Straight 450 reverser problem?

I have a straight 450 loader with a problem. At first startup I drove it about 200 yards in forward and stopped to select a lower gear. When I shifted the reverser back into forward it wouldn’t move. I tried reverse with no luck. I shut it down, checked the oil level “GOOD” and walked back to the sh...
by oljoe
Wed Mar 05, 2014 4:11 pm
Forum: Late model JD crawler technical support
Topic: Drain plug on 450 clutch bellhousing
Replies: 3
Views: 1518

I know this is kinda old but there is a weep hole in the clutch housing that should have a cotter pin in it. The cotter pin dosn't do anything but keep the hole open. If it plugs again just twist the cotter pin around and it will clear the hole.
Joe
by oljoe
Mon Nov 04, 2013 3:34 pm
Forum: Late model JD crawler technical support
Topic: dry clutch 450 loader
Replies: 3
Views: 1635

ITi That problem happens quite often with the dry clutches if they are not used. If you can get it against an immovable object just pull back on the lever and let dig. Sometimes that will break the clutches loose from the plates. Take tjrichard’s advice and don’t use any kind of oil on the clutches....
by oljoe
Mon Sep 30, 2013 12:08 pm
Forum: Late model JD crawler technical support
Topic: 450 b tranny leak
Replies: 4
Views: 1891

Sometimes it is hard to find out where the oil is leaking.
You can look through this thread to see what I went through to find a transmission leak.
http://www.jdcrawlers.com/messageboard/ ... php?t=7602
by oljoe
Sat Sep 28, 2013 2:28 pm
Forum: Late model JD crawler technical support
Topic: there seems to be click
Replies: 20
Views: 7344

Leonard, I’m glad to see you haven’t left entirely. Dealing with people can be aggravating sometimes. I’m reminded of a quote “You can’t fix stupid” from Ron (tater salad) White. While most people don’t fall in that category some just do. I have a friend that is in the armed service that could not c...
by oljoe
Fri Sep 27, 2013 2:53 pm
Forum: Late model JD crawler technical support
Topic: 450 b tranny leak
Replies: 4
Views: 1891

You should be able to pull the seat cushion and see the top of the transmission. Clean all of the oil and grease off of the transmission with a pressure washer. Start it and look for the leak. There aren’t any pressure ports that go into the transmission top cover on a 450B but the rotating componen...
by oljoe
Mon Aug 26, 2013 6:14 pm
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 20653

Thanks to everyone for all of the help with this loader. I got the loader reassembled over the weekend. When I mounted the clutch housing I let the clutch adjustment bolt fall and it bound up against the transmission pump. I had to pull it back off to get the bolt where it needed to be then set it b...
by oljoe
Thu Aug 22, 2013 3:53 pm
Forum: Late model JD crawler technical support
Topic: Straight 450 main clutch, 11 or 12?
Replies: 12
Views: 4481

The John Deere parts site http://jdpc.deere.com/jdpc/servlet/com. ... ervlet_Alt
lists 2 different engine clutches. One doesn’t specify the size. The other is 279MM (11in).
If you need parts Lavoy, the owner of this site, can help.
Joe