John Deere 390 Offset Flail Mower
Flail Shredders
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Features
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Cutting Width: 7 ft. 6 in. (2.3 m)
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Hitch Category: Cat. 1 & Cat. 2
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PTO HP: 40 – 75 hp (30 – 56 kW)
Specifications
3-Point Hitch - Quick-coupler compatible: |
Yes (Category 1 and 2) |
Blades - Number: |
168 (84 pairs) |
Blades - Type: |
Heat-treated Reversible Side-slice (Optional Smooth-cut Cupped Knives) |
Dimensions - Overall height: |
0.99 m 39 in. |
Dimensions - Overall length: |
1 m 40 in. |
Dimensions - Overall width: |
2.5 m 99 in. |
Drives - Belts: |
2-section 5VX-2 notched |
Drives - Gauge roller: |
140 mm 5.5 in. |
Drives - PTO: |
540 rpm |
Machine - Cutting height: |
13 to 127 mm 0.5 to 5 in. |
Machine - Cutting width: |
Centered Centered Offset Offset 0.3 or 0.7 m 12 or 26 in. 2.3 m 90.5 in. |
Machine - Hood thickness: |
4.8 mm 0.19 in. |
Rotor - Diameter: |
114 mm 4.5 in. |
Rotor - Speed: |
1,850 rpm |
Tractor HP Required - Maximum: |
56 kW 75 hp |
Tractor HP Required - Minimum: |
22 kW 30 hp |
Weight - Approximate: |
495 kg 1,093 lb |
Tractor hookup
3-point hitch on 360 Flail Mower
3-point hitch on 370 and 390 Flail Mowers
All machines have a Category 2/1 3-point hitch. Bushings or reversible pins are included for Category 2/1 compatibility.
The 360, 370, and 390 Mowers with centrally mounted hitches are suited for normal cutting conditions:
- 360 Mower is compatible with quick-coupler Category 1 only.
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370 and 390 Mowers are compatible with quick-coupler Category 1 and 2.
The 390 Mower with a 30.5-cm or 66-cm (12-in. or 26-in.) hitch offset to the right is ideal for trimming along walls, buildings, trees with low-lying branches, fences, or orchards.
Heavy-duty hood and end plates
Heavy-duty hood and end plates
The hood and end plates are designed for heavy-duty applications:
- Hood is made of 0.48-cm (0.188-in.) thick steel to resist denting and wear.
- End plates are made of 0.64-cm (0.250-in.) thick steel to provide structural support and resistance to side thrusts.
- Full-length torque tube helps prevent twisting when operating on uneven ground.
Base equipment side-slicer knives or optional smooth-cut knives available
Side-slicer knives
Base equipment side-slicer knives are good all-purpose knives. They provide aggressive cutting action in tough conditions.
The side-slicer knife characteristics are as follows:
- Knives are made of heat-treated alloy steel for durability.
- Individual knife weight, along with the centrifugal force created, provides an aggressive cutting action.
- Edges are ground to provide a sharp cutting surface and reduced horsepower requirements.
Rotor
Smooth-cut knives can be ordered as an option:
- Smooth-cut knives utilize the same mountings as the side-slicer knives.
- These optional knives are good for grassy, weedy conditions and are self-cleaning.
- Knives can also be resharpened for added wear life.
Heavy-duty gearbox and drive shaft
Heavy-duty gearbox
PTO drive shaft
All John Deere flail mowers feature this rugged, heavy-duty gearbox with a continuous 65-hp rating and an intermittent 90-hp rating. Another feature included is a five-year, unlimited-hour warranty.