Rebuild Hydro Gear Mower Transmission ✅ ● ZT3100 ZT2800 ZT3400 ● Zero Turn Lawn Tractor

How to rebuild your Hydro-Gear transmission yourself! Had an issue with my Gravely Zero-Turn mower where a small part broke off inside the Hydro-Gear Hydrostatic ZT-3100 transmission pump on the left side and the machine would not drive as a result. Had to tear down the entire Hydro-Gear, clean it out, replace the broken part, and reinstall all the gaskets, snap rings, and seals with replacements. In this video I walk you through all the activities to do this job yourself with basic hand tools on a work bench. These transmissions cost about $1,000 to replace so attempting a repair is always a good idea. Repair is nearly identical for ZT-2800 and ZT-3400.

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Supplies and Tools Used:
Gasket and seal rebuild kit (Hydro-Gear) - https://amzn.to/3o04aud
Oil filter wrench (Channel Lock) - https://amzn.to/3bRnt2w
Pick set (Channel Lock) - https://amzn.to/3lbp0oy
Hydro-Gear Oil filter (Stens) - https://amzn.to/3CMuqMA
RTV gasket sealant (Permatex) - https://amzn.to/3oYd0HT
Impact wrench (DeWalt): https://amzn.to/2TydGba
GoPro Hero Black - https://amzn.to/3ls3KJY
GoPro mounting kit - https://amzn.to/2IgQjNJ
Download the service manual - www.Hydro-Gear.com

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