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John Deere GM4060
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GM4060
Grooming Mowers
Overview:
The Frontier™ GM4060 Rear Discharge Grooming Mower offers exceptional durability and performance with its high blade-tip speed, rugged gearbox, and innovative design that ensures a smooth, level cut quality across diverse terrains.
- Caster Wheels Follow Ground Contours and Prevent Scalping
- Floating Hitch for Level Cutting
- High Blade-Tip Speed
- Rugged Gearbox With Cooling Fins
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Features
Adjustable Caster Wheels

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.
High Blade-Tip Speed for Better Mowing Quality

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.
Floating Top and Lower Hitch for Level Cutting

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.
Specifications
Blade
| Blade Quantity | 3 |
| Average Tip Speed | 18000 fpm |
| Average Tip Speed | 5486.4 m/min |
| Spindles - Quantity | 3 |
| Spindles - Composition | Ductile iron |
| Spindles - Bearing | Triple ball bearings |
Belts
| Type | B-section Aramid |
| Quantity | 1 |
| Adjustment | Spring-loaded w/ bearing pivot |
Gearbox
| Recommended Maximum Tractor PTO Power | 50 hp |
| Recommended Maximum Tractor PTO Power | 37.3 kW |
Dimensions
| Overall Machine Width | 61 in. |
| Overall Machine Width | 155.2 cm |
| Cutting Width | 60 in. |
| Cutting Width | 152.4 cm |
Caster Wheels
| Quantity | 4 |
| Solid Caster Wheels | Yes |
| Solid Caster Wheels - Size | 4.0x10.0 in. |
| Solid Caster Wheels - Size | 10.1x25.4 cm |
Warranty
| Machine | 1 year |
| Gearbox | 6 year |
| Spindle | 3 year |
Hitch
| Hitch Category | Category 1 and Limited Category 1 |
Weight
| Operational | 617 lb. |
| Operational | 280 kg |
| Shipping | 710 lb. |
| Shipping | 322 kg |
Setup Time
| Labor Hours | 0.5 hr |
Tractor Requirements
| PTO Horsepower | 15-50 hp |
| PTO Horsepower | 11.2-37.2 kW |
| PTO rpm | 540 rpm |
Deck
| Deck Thickness | 7 gauge |
| Deck Discharge | Rear |
Contact Us
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325 Walt Messick Road
Harrington, Delaware 19952
Phone: (302) 398-3729
Toll Free: (800) 237-1272