CNH REAR RIPPER Installation Instructions (90386692)

Out in the dirt, this rear ripper’s living on the back of a tractor or loader, breaking hardpan, roots, and packed gravel in all kinds of weather. This manual walks you through how to install, align, and secure that CNH rear ripper so it doesn’t fight you or the machine. Say you’ve just bought a used unit with a loose-looking frame and mystery hoses—this guide helps you trace the mounts, route the hydraulics, and verify everything’s actually compatible before you drop it in the ground.

Applications & Use Cases

• Trace and identify all mounting points so you can line up the brackets and pins instead of guessing and chewing up hardware.
• Check and verify which hydraulic ports to use, then route hoses cleanly so they don’t rub, pinch, or get ripped off in the first hour.
• Isolate alignment issues by following the sequence for tightening bolts and pins, so the ripper sits square and tracks straight.
• Inspect and test the ripper movement after install, making sure it raises, lowers, and locks the way it should before real work.
• Use it as a step‑by‑step reference when you remove or re‑install the kit on another machine, so you don’t forget small parts or shims.

FAQ

Q: Is this a PDF I can search on my laptop or phone?

A: It’s typically a PDF, so you can search by keyword, zoom in on diagrams, and keep it open while you’re at the machine.

Q: Can I print just the pages I need for the jobsite?

A: Yes, most folks print the install steps and hydraulic diagrams, stick them in a sleeve, and don’t worry about getting the whole manual dirty.

Safety Note

Always support the ripper and any raised machine components with approved stands before you get underneath to inspect or tighten anything.

CNH REAR RIPPER Index:

1 SAFETY INFORMATION
Basic instructions – Important notice regarding equipment servicing. . . . . . . . . . . . . . . . . . . . . . . 1-1
2 KIT CONTENT
Kit overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
3 PRE-ASSEMBLY
PREPARING FOR ASSEMBLY
Machine preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4 ASSEMBLY
Moldboard control
Ripper assembly – Assemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Ripper assembly – Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

CNH

90386691 – REAR RIPPER
CASE CONSTRUCTION
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Unit [FNH836DANZHF01780 – ]
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