Search found 91 matches

by oljoe
Fri Aug 10, 2018 9:12 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

Well there's definitely air entering somwhere, where is the pump mounted on your machine? Jds, The pump mounts on the front transmission cover and oil is supplied from a cast passage in the cover. There is a 1” hole in the lower front part of the case that supplies oil to the front cover. Inside of...
by oljoe
Fri Aug 10, 2018 6:56 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

From the sounds, does the valve buzzing noise start approximately the same time the frothy oil shows up? The buzzing starts as soon as the pump pressure reaches 130-150 psi and is just a few seconds after starting. The buzzing seems to correspond more with the bubbles than the foaming. I got a new ...
by oljoe
Thu Aug 09, 2018 2:37 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

Attached is a video with a clear hose attached to the cooler line
Lots of air bubbles then it gets foamy at the end.
One of the rubber fuel injector return lines broke so I had to shut it down...more testing tonight.
https://www.youtube.com/watch?v=5Vg2BUpRmpE
by oljoe
Wed Aug 08, 2018 1:03 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

Great idea Paul I'll give that a try when I have a chance to get back to it. I've got the hay thing going on again right now and it's taking all my time.

Jds, Thanks for the reply. I've racking my little pea brain trying to figure how to check for air in the system and Paul came up with a way.

Joe
by oljoe
Mon Aug 06, 2018 8:47 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

Just saying thanks Paul.
by oljoe
Sat Jul 28, 2018 1:39 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

I tried bypassing the cooler and transmission filter and got the same result. The buzzing started when the pressure rose to about 150 and started to fluctuate. When I disengaged the engine clutch the pressure dropped to 0 and the buzzing stopped. When I engaged the clutch It took about a minute for ...
by oljoe
Fri Jul 27, 2018 2:03 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

not to question your checking, but you mention the hose interior deteriorated, is possible piece broke off and lodged in critical location??? That is a very distinct possibility. It would have to be in the cooler or the filter. I’ve had everything else off and cleaned. If I bypass those and it stil...
by oljoe
Fri Jul 27, 2018 1:50 pm
Forum: Late model JD crawler technical support
Topic: Low track power
Replies: 17
Views: 1372

Re: Low track power

After watching the video a couple of times, I really couldn’t see a problem with the HLR pressure. The only time I saw the pressure drop to 0 was when you disengaged the engine clutch by pressing the pedal all the way down. The pressure rises to 200 psi when you first start to depress the clutch, th...
by oljoe
Fri Jul 27, 2018 8:41 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

Have you checked the oil level when it's making the buzzing noise? Is it different than when its not making the noise? I have not checked the oil level with the engine running but I did check it when I shut down. It was full. I’ll check it running. The other thing I want to try is bypassing the coo...
by oljoe
Thu Jul 26, 2018 8:14 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

I had very high hopes only to have them dashed against the cold yellow steel that is the 450. :cry: When I got ready to put the rubber sections of cooler lines back on I blew compressed air through all the hoses and looked through them for resections. One of the lines had a piece of rubber where the...
by oljoe
Mon Jun 25, 2018 12:29 pm
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

I got the clutch assembly back in and covered everything up. I haven’t been able to get back on it because hay season got here, and I just finished with that last week. Also, my wife and I are having a 40-year anniversary, party and vowel renewal, coming up the first part of June. We’re having the g...
by oljoe
Mon Jun 11, 2018 6:16 am
Forum: Late model JD crawler technical support
Topic: 450B transmission
Replies: 18
Views: 1241

Re: 450B transmission

The 450 manual SM2064 has the disassembly and adjustment procedures.
by oljoe
Fri Jun 01, 2018 8:35 am
Forum: Late model JD crawler technical support
Topic: 450C HLR diag question
Replies: 5
Views: 724

Re: 450C HLR diag question

In my manual it says on page 130-5-10: "NEUTRAL The neutral cycle is the same as “Step 1” on page 130-5-6. Oil flow is shown in Fig. 130-5-6. The piolot valve dumps oul, allowing the bypass valve to close. This seals off the full flow passage to the clutches. At the same time, the shift valve dumps ...
by oljoe
Thu May 31, 2018 9:46 am
Forum: Late model JD crawler technical support
Topic: 450C HLR diag question
Replies: 5
Views: 724

Re: 450C HLR diag question

Hi Paul, Thanks for all your help with my problem. It sounds like there is something floating around in the low clutch circuit. Maybe it has an acorn in there. :shock: When it’s in neutral there is no back flow of oil from the clutch pistons returning. When the hi or reverse clutch is applied the cl...
by oljoe
Mon May 28, 2018 6:41 am
Forum: Late model JD crawler technical support
Topic: reverser oil flow question
Replies: 92
Views: 6181

Re: reverser oil flow question

The clutch pack is out and laying on the bench. When I pulled the clutch valve housing off the main valve housing the check ball was on its seat. When I turned it over the ball fell out on the bench. It was clean. I pulled the spring and stop out and found a small chunk of blue silicone in the passa...