Find parts & diagrams for your John Deere equipment. Search our parts catalog, order parts online or contact your John Deere dealer.. 4020 hydraulic line identification.. Thread starter Redneck Packrat; Start date Aug 16, 2016; R. Redneck Packrat Member. Aug 16, 2016. John Deere 2040 No Hydraulic Oil Getting to Filter. LDCravey; Jan 15, 2025; John Deere; Replies 17 Views 681. Jan 16, 2025. LDCravey. L. E. 3020 loader plumbing. E POLK; Feb 22, 2025; John Deere; Replies 15
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Illustrated Factory Technical Manual for John Deere 2WD or MFWD Tractors This manual contains high quality images, circuit diagrams, instructions to help you to maintenance, troubleshooting, diagnostic, and repair your truck.. John Deere 4010, 4020 Tractors Service Technical Manual. SM2042 - John Deere 4010 Tractors Service Technical Manual.. Hopefully this schematic sheds some light onto your questions regarding the installation of your aux. hyd. control valvesthis particular schematic is for the late model 4020 but from what I understand only varies from the early model 4020 in terms of where the steering circuit return is plumbed and the addition of the hyd. operated PTO
![24 Part John Deere Tractor Hydraulic System Diagram [List]](https://tractordetails.net/wp-content/uploads/2023/01/John-Deere-Tractor-Hydraulic-System-Diagram.jpg "24 Part John Deere Tractor Hydraulic System Diagram [List]")
![[DIAGRAM] Wiring Diagram John Deere 4020 Powershift](https://s3.us-east-2.amazonaws.com/redpowerphotos/monthly_2017_05/RWP2546________UN01JAN94.gif.cf3faf7421d5b1bb29fa53692f882766.gif "[DIAGRAM] Wiring Diagram John Deere 4020 Powershift")
