Search found 111 matches

by Bret4207
Thu Dec 20, 2018 8:25 am
Forum: Early model JD crawler technical support
Topic: About those 420 hydraulic cylinders...
Replies: 5
Views: 512

Re: About those 420 hydraulic cylinders...

Yup, I gotta talk to Lavoy.
by Bret4207
Wed Dec 19, 2018 1:59 pm
Forum: Early model JD crawler technical support
Topic: About those 420 hydraulic cylinders...
Replies: 5
Views: 512

Re: About those 420 hydraulic cylinders...

Thanks Jim! My JD Ag dealer got me to my local JD industrial dealer and they can get the seal/gasket/cup kit for $116 and change each side. Seems a little steep, but it IS available. Had to track down the right catalog (62 blade) to find the hyd cyl diagram.
by Bret4207
Wed Dec 19, 2018 12:25 pm
Forum: Early model JD crawler technical support
Topic: About those 420 hydraulic cylinders...
Replies: 5
Views: 512

About those 420 hydraulic cylinders...

So I got out and picked up my cylinders from the big time industrial hydraulic place. Nice guys, no charge for tearing them apart and evaluating the cylinders. Took a look at them this AM. The guy said they were badly pitted and scored, not worth messing with. I have no clue what he's talking about!...
by Bret4207
Tue Dec 11, 2018 7:22 am
Forum: Early model JD crawler technical support
Topic: Icy Hydraulics
Replies: 5
Views: 576

Re: Icy Hydraulics

I've gone through this on my 40 and 420. I think it's condensation mostly. I ended up pulling the tanks on mine in both cases and draining them and then rinsing with diesel. That won't get all the milky oil out but it gets most of it. My machines don't have sheds most of the time. Good idea to let i...
by Bret4207
Tue Dec 11, 2018 7:18 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

Thanks Jim, I'll talk to them. Theres another place I can go that's slower than death but they are more of a farmer-type repair place. They may be able to help.
by Bret4207
Mon Dec 10, 2018 7:21 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

The barrels are just steel tubing, right? I took it to a regular industrial hydraulic repair service near our local big city/army base (Watertown/Adams NY). They me be the kind of place that isn't much into redneck/make it do repairs. That might have been a mistake?
by Bret4207
Sun Dec 09, 2018 8:45 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

Thanks for the ideas and help guys. I'll pick then up this week, hopefully, and see how bad they are.
by Bret4207
Sat Dec 08, 2018 9:47 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

Inside arms, 2 cylinders, manual swing to right and left. Cylinders are tie rod type.

Pics in this post- viewtopic.php?f=1&t=9932&p=54104#p54104
by Bret4207
Fri Dec 07, 2018 7:49 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

Lavoy, my bad, I forgot it does angle side to side but not horizontally. I'm sure it's a JD blade.
by Bret4207
Thu Dec 06, 2018 8:14 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Re: Aw nuts! Blade cylinders

Not sure on blade model Lavoy. 2 cylinders, straight blade, inside mount. What is so special about the JD cylinders? Stroke?
by Bret4207
Wed Dec 05, 2018 9:25 am
Forum: Early model JD crawler technical support
Topic: Aw nuts! Blade cylinders
Replies: 21
Views: 1417

Aw nuts! Blade cylinders

Finally got the 420 blade cylinders out to the hydraulic shop (70 miles one way). Long story short, they're trashed. Shop says it looks like there was a lot of water in them for many years. Scored and pitted bad. Initial estimate for a "cheap" honing and rebuild with ZERO assurance they won't leak a...
by Bret4207
Tue Jun 05, 2018 11:55 am
Forum: Early model JD crawler technical support
Topic: 40C vs 420C hyd pump
Replies: 34
Views: 3197

Re: 40C vs 420C hyd pump

Thanks!
by Bret4207
Mon Jun 04, 2018 6:47 am
Forum: Early model JD crawler technical support
Topic: 40C vs 420C hyd pump
Replies: 34
Views: 3197

Re: 40C vs 420C hyd pump

Is there a rebuild kit available for the cylinders from Deere or elsewhere? I'm not finding anything in a quick search.
by Bret4207
Fri Jun 01, 2018 5:59 am
Forum: Early model JD crawler technical support
Topic: 40C vs 420C hyd pump
Replies: 34
Views: 3197

Re: 40C vs 420C hyd pump

Thanks Lavoy, I know the cylinders weep oil from the front seals so they probably need an R+R anyway.

Any thoughts on adding a hyd filter?
by Bret4207
Thu May 31, 2018 6:24 am
Forum: Early model JD crawler technical support
Topic: 40C vs 420C hyd pump
Replies: 34
Views: 3197

Re: 40C vs 420C hyd pump

Thanks guys. The new pump was nice and clean inside. It went in fine. Added new 303 and still have the slow acting when raising blade and it starts dropping as soon as I let off on the control lever. I'm assuming the seals in the control valve are shot. Have the manuals but am going to have to start...