Search found 3 matches

by Hank420
Fri Sep 15, 2023 7:03 pm
Forum: Early model JD crawler technical support
Topic: JD 420c Crawler Hydraulic System
Replies: 8
Views: 11431

Re: JD 420c Crawler Hydraulic System

Thanks again guys for your advice. I probably should have consulted with you folks before I started this project, however, since I’ve come this far with it, I hope to tinker with it a bit more before I give up. I’ll try posting some photos and/or video when it’s done if anyone would be interested. H...
by Hank420
Tue Sep 05, 2023 8:16 pm
Forum: Early model JD crawler technical support
Topic: JD 420c Crawler Hydraulic System
Replies: 8
Views: 11431

Re: JD 420c Crawler Hydraulic System

Thanks for your response Jim and Lavoy. The Crawler does have a blade. I would add a picture of my “Backdozer” (- or “Bullhoe”) if I knew how to. - The hydraulic pump is located just behind the rad at the front of dozer. The pressure is about 1,000 psi which is not enough to effectively use the back...
by Hank420
Mon Sep 04, 2023 4:56 pm
Forum: Early model JD crawler technical support
Topic: JD 420c Crawler Hydraulic System
Replies: 8
Views: 11431

JD 420c Crawler Hydraulic System

Hello, I am new to this forum, but I’m hopeful that someone here has some expertise that they are willing to share with me. I have a 1956 420c Crawler with a backhoe attachment. However, the hydraulic pressure is not enough to make the backhoe a very useful tool. Can the pressure be increased and is...