48-in. (122-cm) 7Iron PRO Mower Deck

54-in. (137-cm) 7Iron PRO Mower Deck

60-in. (152-cm) 7Iron PRO Mower Deck

Overview

M and R Series QuikTrak™ Mowers have 7Iron PRO Mower Decks that are built to last, while delivering a high-quality cut in diverse conditions.

Mower deck	Q820M	Q850M	Q850R	Q865R EFI
48-in. (122-cm) 7Iron PRO	x
54-in. (137-cm) 7Iron PRO	x	x	x
60-in. (152-cm) 7Iron PRO	x	x	x	x

Built to last

Rectangular leading-edge reinforcement

Trim-edge bumper

The mower deck shell is forged from a single sheet of 7-gauge, 0.179-in. (4.6-mm) steel. There are fewer welds to wear or break than shells built from multiple fabrications.

Rectangular leading-edge reinforcement and rounded corners help distribute impact stress to reduce potential for damage when the mower contacts trees, rocks, curbs, and other fixed obstacles.

The trim edge of the deck is equipped with a bumper that provides extra abrasion resistance to protect the machine and the property.

Three 1-in. (2.5-cm) cold-forged spindle shafts are heat-treated for strength and supported by ball bearings. Deep spindle pockets keep the blades aligned, even after years of tough operation. The ribbed spindle housings are made of aluminum and have an 8-in. (20-cm) base for added strength and heat dissipation.

Exceptional mowing results

Underside of 48-in. (122-cm) 7Iron PRO Mower Deck

Underside of 48-in. (122-cm) 7Iron PRO Mower Deck

Minimal welds provide a smoother underside with fewer sharp corners for reduced material buildup.

Higher blade-tip speed than many competitors - approximately 18,000 fpm (5,486 m/min) for more blade cuts per inch mowed.

A deep-deck design of 5.5 in. (14 cm) delivers excellent airflow so material can be processed quickly and efficiently.

The front edge is raised above the blade plane to allow even cutting of tall grass.

The wider and higher discharge opening provides even clipping dispersal for an excellent finished appearance in all conditions.

Blade overlap is 1.6 in. (40.6 mm) to reduce striping between blades.

Dual-captured front-corner, front-center, and rear-center anti-scalp wheels provide deck flotation over even the toughest terrain.

Simple to maintain and clean

Q820M with engine guard folded open

Spindle covers that allow for cleaning while installed

Spindle covers that allow for cleaning while installed

Deck level adjustment

A folding engine guard provides access to the mower deck drives for cleaning and maintenance.

Spindle covers allow for cleaning while installed and can be removed without tools for maintenance. Spindle grease fittings are accessible through the top of the spindle cover.

Adjustment screws at each lift point are used to level the mower deck side-to-side and set the rake angle. The mower deck is fully supported throughout the leveling process, enabling predictable adjustments and precise height measurements.

Q865R EFI QuikTrak™ Stand-On Mower