Search found 366 matches

by DrLoch
Tue Mar 23, 2021 7:12 am
Forum: Late model JD crawler technical support
Topic: 450C track loader hose replacement question
Replies: 10
Views: 365

Re: 450C track loader hose replacement question

When I did mine, like the others I had the boom of the ground and pulled the rear pins to get the rear hoses. I bought all kinds of wrenches, bent some of said wrenches and really improved my language skills.
by DrLoch
Sat Mar 13, 2021 6:35 am
Forum: Late model JD crawler technical support
Topic: 350 B Injector Pump Roosa
Replies: 5
Views: 613

Re: 350 B Injector Pump Roosa

I agree with Jim, talk with the people that rebuilt it. Does the shop have a test stand to run the pump after a rebuild?
by DrLoch
Tue Jan 12, 2021 7:55 am
Forum: Late model JD crawler technical support
Topic: Seeking advice on replacing high pressure hydraulic line in a 450B
Replies: 13
Views: 1656

Re: Seeking advice on replacing high pressure hydraulic line in a 450B

[/quote]

Thanks Jim, I had read somewhere else to avoid 303 and use J20C and so I'm using Shell Rotella HD which was the best stuff I could find in a hurry.
[/quote]

I'm somewhat confused, which happens often nowadays, are you saying you used Rotella HD in the transmission?
by DrLoch
Wed Nov 18, 2020 7:54 am
Forum: Late model JD crawler technical support
Topic: H-flow pump puttin, total new lines havin- 1st time doin
Replies: 7
Views: 1329

Re: H-flow pump puttin, total new lines havin- 1st time doin

I'm sure the limiting factor is based on the size of the inlet line, 1-1/4". At those speeds the suction line velocity is already higher than what we generally consider best practices in the industrial world. Then you have to factor in the temperature, cold oil moves slower than warm oil, add in the...
by DrLoch
Thu Oct 29, 2020 7:13 am
Forum: Late model JD crawler technical support
Topic: search program stinks
Replies: 7
Views: 1090

Re: search program stinks

That reply certainly provides what you need to do.
by DrLoch
Thu Oct 08, 2020 2:39 pm
Forum: Late model JD crawler technical support
Topic: Basic loader control valve flow-direction question...
Replies: 6
Views: 833

Re: Basic loader control valve flow-direction question...

More isn't always better in some cases which is what I believe Lavoy is implying. Hope you know, more flow requires more horsepower you don't get anything for free unless it's our government, which is another subject all together. You'll no doubt figure that out, you need to taylor the pump flow cur...
by DrLoch
Sat Sep 19, 2020 6:00 am
Forum: Late model JD crawler technical support
Topic: 450C HLR Pressure
Replies: 3
Views: 644

Re: 450C HLR Pressure

Does the pressure drop when checked in all of the 3 ranges, Hi-Lo-Rev? If it does then it is something common to all. There are some line hard lines under the cover. Did you do a complete clutch adjust as per the manual? There are clutch packs inside the transmission the engage and disengage the var...
by DrLoch
Fri Sep 18, 2020 7:18 am
Forum: Late model JD crawler technical support
Topic: 450C HLR Pressure
Replies: 3
Views: 644

Re: 450C HLR Pressure

Pressure should be the same in 3 ranges. A good pressure is 180 PSI. If it
by DrLoch
Wed Sep 16, 2020 6:55 am
Forum: Late model JD crawler technical support
Topic: 450B shifting speed
Replies: 11
Views: 1620

Re: 450B shifting speed

As others have suggested, you need to go through all the preliminary checks and adjustments prior to adjusting the needle valve that controls shifting speed. Optimum pressure for the HLR is about 180 PSI.
by DrLoch
Tue Aug 25, 2020 6:30 am
Forum: Late model JD crawler technical support
Topic: 550B tracks stop...after some run time
Replies: 6
Views: 1315

Re: 550B tracks stop...after some run time

Given you just had transmission service, did it do this before the service work? If not, next question would be what fluid did they use? Appears to be more to the issue.
by DrLoch
Fri Jul 31, 2020 7:50 am
Forum: Late model JD crawler technical support
Topic: 450B problem
Replies: 40
Views: 8885

Re: 450B problem

Pump will only go in/on one of two ways, correct or 180 degrees off since it's the tang on the end of the driveshaft that goes into the distributor rotor assembly. Lining up the pin in the flywheel and the mark in the window is to insure you aren't 180 degrees off on your injector timing. If you loo...
by DrLoch
Tue Jul 21, 2020 6:59 am
Forum: Late model JD crawler technical support
Topic: Dumped my hydraulic fluid, am I damaging my pump?
Replies: 16
Views: 4467

Re: Dumped my hydraulic fluid, am I damaging my pump?

If you are looking for a line that is Flexible, take a look at this https://ph.parker.com/us/en/multipurpos ... -z-form-mp

E-Z Form MP Oil Resistant Flexible Suction Hose, Multipurpose, Series 7219

Have had good results with it in tight areas.
by DrLoch
Tue Jun 30, 2020 6:52 am
Forum: Late model JD crawler technical support
Topic: Dumped my hydraulic fluid, am I damaging my pump?
Replies: 16
Views: 4467

Re: Dumped my hydraulic fluid, am I damaging my pump?

Jim has provided the best answer. If it's a loader, my guess is that it's the pressure line since the only lines running tot the front through the belly pan are the pressure and suction lines for the pump. If you wrap the line as suggested, don't move the bucket handle. You may be able to get it out...
by DrLoch
Tue May 26, 2020 6:46 am
Forum: Late model JD crawler technical support
Topic: JD 350B Steering Issue
Replies: 11
Views: 2583

Re: JD 350B Steering Issue

That information would be covered in manual.