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John Deere
GM4072E
Grooming Mowers

John Deere GM4072E

Starting at

High blade-tip speed

High blade-tip speed and precise blade overlap work together to ensure exceptional strength, performance, and a quality cut.

Bottom schematic view of a mower deck illustrating three blade housings, belt paths, and support wheels
Caster wheels follow ground contours and prevent scalping

By having four caster wheels, the GM40E Series Grooming Mower follows ground contours and prevents scalping. Heavy tubular caster wheel arms are bolted to rail supports for long life.

Close‑up of the front caster wheels on a green grooming mower deck with adjustable height brackets
Floating hitch for level cutting

The floating top link on the GM40E Series keeps the deck tracking over ground contours for a level and smooth cut.

Close‑up of a green grooming mower showing a PTO driveline, gearbox, and metal linkage components
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Dimensions
Overall Machine Width

73.1 in.

Overall Machine Width

185.7 cm

Cutting Width

72 in.

Cutting Width

182.9 cm

Weight
Operational

538 lb.

Operational

244 kg

Shipping

615 lb.

Shipping

279 kg

Tractor Requirements
PTO Horsepower

25-35 hp

PTO Horsepower

18.8-26.1 kW

PTO rpm

540 rpm

Hitch
Hitch Category

Category 1

Deck
Deck Thickness

0.1345 in.

Deck Thickness

3.416 mm

Deck Thickness

10 gauge

Deck Discharge

Rear

Gearbox
Mower Deck Horsepower

35 hp

Mower Deck Horsepower

26.1 kW

Ratio

1:1.9

Blade
Blade Quantity

3

Average Tip Speed

18000 fpm

Average Tip Speed

5486.4 m/min

Spindles - Quantity

3

Spindles - Composition

Cast iron

Spindles - Bearing

Ball bearing

Overlap

1.25 in.

Overlap

3.18 cm

Dimensions

0.25x2.5 in.

Dimensions

0.6x6.4 cm

Composition

Heat treated alloy steel

Caster Wheels
Quantity

4

Solid Caster Wheels

Yes

Solid Caster Wheels - Size

8x3.5 in.

Solid Caster Wheels - Size

20.3x8.9 cm

Belts
Quantity

1

Adjustment

Spring loaded idler

Setup Time
Labor Hours

0.5 hr

Warranty
Machine

1 year

Gearbox

3 year