John Deere rear-discharge mower deck

October 2020

The Fastback™ PRO rear-discharge mower deck from John Deere, Moline, Ill., is available in 60- or 72-in. cutting widths, providing a rear-discharge solution for the Z900 ZTrak™ gas and diesel zero-turn mower line. The deck option features a heavy-duty commercial-grade design.

As a result of the rear-discharge design, the chance of damage from objects being thrown from the mower deck is decreased. The design also helps minimize the amount of debris blown onto the operator, resulting in a cleaner mowing experience. The deck allows operators to mow closely around fixed objects with either side of the deck. A baffling system is designed to reduce clumping and windrowing. The baffles surrounding each blade control and direct material as it moves to the rear.

The baffles are lowered at the rear so that collected material can be quickly discharged to minimize the likelihood that clippings will be expelled to unwanted areas. Materials are directed to the rear, kept low and guided into the turf by the flexible rear shield. The rear-discharge deck is suspended from and supported by the mower to provide a level cut.

The mower blade drive system is powered by a universal joint shaft drive from the vehicle transmission and includes a heavy-duty right-angle, cast-iron gearbox and a dependable v-belt drive system. Quick-release belt covers provide easy access to the spindle pockets by lifting one corner of the cover and rotating to remove. No tools and no ring clip are required.

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