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John Deere
R990M
Mower Conditioners

John Deere R990M

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Easy Attachment

Attaching to a tractor is simple with its A-frame adapter, which locks into the tractor’s front hitch. This design allows for quick detachment and reattachment, streamlining setup and transportation. Drive the tractor slowly to the mower, align, lift, and engage the hitch to the mounts.

Studio side right view of the nose of an 8R tractor with front hitch attached to an F300R front-mounted mower
Productivity and Versatility

The mower is optimized for large-scale mowing with 7R or 8R Tractors, supporting cutting widths up to 32.5 ft (9.9 m) in one pass.

Front studio view of an 8R Tractor with F310R Front Mount and 900-Series Rear-Mount Mower-Conditioners attached
Engineered for Superior Cutting and Reliability

A high-speed rotary disc cutterbar delivers fast, high-quality mowing in tough conditions, with a 3.5 m width, oil-immersed gear-driven bed, and up to eight discs. Quick-change knives, shear-protected discs, and maintenance-free lubrication ensure easy service, durability, and efficient operation.

Mechanic's arms demonstrating quick-change knives technology with two tools on a R990R Rear Mount Mower-Conditioner's cutterbar
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Power Requirements
PTO Power Requirements

105 kW

PTO Power Requirements

141 hp

PTO Drive

Clockwise

Tractor Equipment
Tractor Connection

2 Double Acting SCV's + electrical 7 pin connector + 3 pin convenience outlet

Standard Hitch

Category 3, 3-point hitch (3 and 4N Quick Hitch compatible)

Hydraulic Connections

1 SCV

Cutterbar
Type

Rear reach

Cutting Width

9.5-9.9 m

Cutting Width

31.2-32 ft

Cutting Height

35-85 cm

Cutting Height

1.37-3.35 in.

Front/Rear Cutting Overlap

0.3-0.5 m

Front/Rear Cutting Overlap

1-1.6 ft

Number Of Disks

16

Number Of Knives

32

Disk Speed

2986 rpm

Suspension System

Adjustable hydro-pneumatic

Dimensions
Transport Width

3.5 m

Transport Width

11.4 ft

Transport Weight

2350 kg

Transport Weight

5181 lb.