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Overview
An owner-filmed walkthrough of the full hydraulic/transmission fluid service on a Branson 3520R, covering drain plug location (11/16 wrench), filter swap with part number TA00025525B, and the often-skipped step of dropping the shift linkage to pull and clean the internal screen. Fluid volume is confirmed at roughly nine gallons of universal TUTH fluid. Best for 3520R owners tackling this job themselves for the first time.
Posted by the Arrow It channel, which appears to be an owner sharing a practical how-to from personal experience rather than any commercial or dealership affiliation.