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Chain Grinders Maintenance

Maintenance and Removal of Hydraulic System for the Oregon 620-120 Grinder

Learn how to remove the hydraulic system of the 620-120 electric grinder and general maintenance tips for the Oregon chainsaw sharpener.

Before you get started, you will need the following tools:

Part Number 546950 (replacement Hydraulic Assembly)
Hydraulic fluid
Long blade screw driver
Adjustable set of pliers
Rubber mallet 
Snap ring removal tools
Allen wrenches

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