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John Deere GM40 Series Grooming Mowers

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Features

Key features – GM40 Series

The GM40 series grooming mower offer a deep high-grade steel deck, premium caster wheels, and heavy-duty construction for a longer durability. The floating lower hitch, high-lift blades, and parallel side frames create an extremely even cut and an even distribution of cut material, when mowing at higher speeds. For ease of attachment, it´s iMatch™ quick-hitch ready from the factory, without additional hardware.

Combine with a 6-year gearbox warranty and a 3-year spindle warranty, operator will have a rugged, high performing, and easy to use grooming mowers.

Caster wheels

Four caster wheels follow ground contours Four caster wheels follow ground contours

By having four height adjustable caster wheels, the GM40 Series Grooming Mower follows ground contours and prevents scalping for even cut quality. Heavy tubular caster wheel arms are bolted to rail supports for long life.

Floating top and lower hitch for level cutting

Smooth, level finish Smooth, level finish

The floating top link on the GM40 Series keeps the deck tracking over ground contours for a level and smooth cut. For increased cut quality, connect your tractor’s 3-point hitch to the mower without an iMatch™ hitch system, taking advantage of the side-to-side floating clevis brackets.

High blade-tip speed

High speed blade to provide a quality cut High speed blade to provide a quality cut

High blade tip speeds allow for better mowing quality at higher operating speeds and precise blade overlap work together to ensure performance and a quality cut.

Rugged component

Gearbox is rated for up to 50 PTO hp for longer life Gearbox is rated for up to 50 PTO hp for longer life

The GM40 Series Grooming Mower rugged gearbox comes with a 6-year guarantee.

Ductile iron blade spindles with triple ball bearings Ductile iron blade spindles with triple ball bearings

The spindles have a three-year warranty.

Easy maintenance

Easy shield removal Easy shield removal
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The shield protecting the drive belt are easy to remove without the need of a tool. This provides easy access to the belt sheaves, belt, and spring-loaded idler.

Choose from various cutting blades

Three blades per deck Three blades per deck
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To meet specific mowing needs, choose from two blade types:

  • Low lift
  • High lift (standard)

Deck design increases overall productivity

Deck design increases overall productivity Deck design increases overall productivity

The deep deck design allows greater cutting volume and a cleaner cut. Offset gauge wheels reduce grass tracks.

Anti-scalping front roller kit

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An anti-scalping front roller kit can be ordered as attachment for field conversion for GM40 Series Grooming Mowers. The roller is attached to the front of the cutting deck to help reduce scalping in uneven terrain.

Each kit contains one roller.

Rear chain shield conversion kit

Prevents debris from flying out from under deck Prevents debris from flying out from under deck

A rear chain shield kit is available as an attachment for field conversion. It assists in preventing debris from flying out from underneath the deck of the rear-discharge grooming mowers.

Key Specs

Overall machine width GM40: 155.2 cm
61 in.
GM4060: 185.7 cm
73 in.
GM4072: 216 cm
85 in.
Cutting width GM40: 152.4 cm
60 in.
GM4060: 182.9 cm
72 in.
GM4072: 213.3 cm
84 in.
Cutting height GM40: 3.8-12.7 cm
1.5-5.0 in.
Hitch - Category GM40: Category 1 and limited category 1
GM4060: Category 1
GM4072: Category 1
PTO horsepower GM40: 11.2-37.2 kW
15-50 hp
GM4060: 14.9-37.2 kW
20-50 hp
GM4072: 18.6-37.2 kW
25-50 hp
PTO rpm GM40: 540 rpm
Blade - Quantity
Caster wheels - Solid
Deck - Discharge
Deck - Thickness

Dimensions

Overall machine width GM40: 155.2 cm
61 in.
GM4060: 185.7 cm
73 in.
GM4072: 216 cm
85 in.
Cutting width GM40: 152.4 cm
60 in.
GM4060: 182.9 cm
72 in.
GM4072: 213.3 cm
84 in.
Cutting height GM40: 3.8-12.7 cm
1.5-5.0 in.

Weight

Operational GM40: 280 kg
617 lb
GM4060: 311 kg
686 lb
GM4072: 358 kg
790 lb
Shipping GM40: 322 kg
710 lb
GM4060: 353 kg
779 lb
GM4072: 407 kg
898 lb

Tractor requirements

PTO horsepower GM40: 11.2-37.2 kW
15-50 hp
GM4060: 14.9-37.2 kW
20-50 hp
GM4072: 18.6-37.2 kW
25-50 hp
PTO rpm GM40: 540 rpm

Hitch

Category All GM40: Category 1 and limited category 1
GM4060: Category 1
GM4072: Category 1
iMatch™ compatible

Deck

Thickness GM40: 7 gauge
Discharge All GM40E: Rear

Gearbox

Mower deck horsepower
Ratio

Blade

Quantity GM40: Three
Tip speed, average fpm GM40: 5,486.4 m/min
18,000 fpm
GM4060: 5,486.4 m/min
18,100 fpm
GM4072: 5,516 m/min
Spindles Quantity
All GM40E: Three
Composition
GM40: Ductile iron
GM4060: Ductile iron
GM4072: Ductile iron
Bearing
All GM40: Triple ball bearings
GM40: Three
Composition
Dimensions
Overlap

Caster wheels

Quantity All GM40: Four
Solid Size
All GM40: 10.1 x 25.4 cm
4.0 x 10.0 in.
All GM40: Yes
Bearings
Pneumatic

Belts

Type GM40: B-section Aramid
Quantity All GM40: One
Adjustment All GM40: Spring-loaded w/ bearing pivot
GM4060: Spring-loaded w/ bearing pivot
GM4072: Spring-loaded w/ bearing pivot

Set-up time

Labor hours All GM40E: 0.5

Warranty

Machine All GM40E: 1 year
Gearbox All GM40: 6 year
Spindle All GM40: 3 year

Additional information

Date collected