Sprayer Solution Pump Rebuild After Warranty Denial | Pump & Motor Re-Seal

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Not every repair is a full teardown — but sometimes the real challenge starts after someone else takes it apart. In this video, we rebuild a leaking agricultural sprayer pump that was sent in for warranty… only to come back as a box of loose parts. No marks, no orientation notes, no reassembly — just a mess that still needs to work.

This pump was originally leaking, not failed. After the warranty department completely disassembled it and denied coverage, the customer was left with an unusable hydraulic sprayer pump. Instead of scrapping it, we walk through cleaning, resealing, and rebuilding the hydraulic motor section so it can go back into service.

You’ll see the full reassembly process, including seal installation tricks, thrust bearing orientation, snap ring issues, G-rotor alignment, and how to deal with universal pump housings when all the index marks are gone. This is real-world farm repair — fixing problems that shouldn’t exist in the first place.

What’s covered in this video:
• Diagnosing a leaking agricultural sprayer pump
• Cleaning and inspecting a pump returned from warranty teardown
• Installing lip seals, ceramic seals, O-rings, thrust bearings, and needle bearings
• G-rotor and hydraulic motor reassembly
• Proper seal orientation and installation techniques
• Pressing bearings without specialty tools
• Torque specs and assembly tips
• Dealing with incorrect seal kit parts
• Common warranty repair frustrations in ag equipment

This video is perfect for farmers, mechanics, and DIYers who want to understand how hydraulic sprayer pumps work — and how to put one back together when someone else leaves you with a box of parts.

At RCDiesel, we focus on real agricultural, diesel, and heavy-equipment repairs — no shortcuts, no fluff, just hands-on fixes that keep machines working in the field.

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