Rough Mowers | 9009a TerrainCut™

Features

Stamped rotary decks and rigid frame construction to maximize deck durability

9009A TerrainCut™ Rough Mower

7400A TerrainCut Trim and Surrounds Mower

The 9009A TerrainCut Rough Mower is equipped with five and the 7400A TerrainCut Trim and Surrounds mower is equipped with three 68.6-cm (27-in.) stamped rotary decks for superior productivity and strength. The rotary decks perform exceptionally well across a wide range of grass types, including warm- and cool-season grasses.

Stamped deck shell

A strong stamped, 10-gauge shell construction is an integral part of this durable deck. The stamped design uses a single piece of steel to form the shell that provides consistent strength throughout all areas of the deck. This is the starting point of the strength and durability of the deck construction.

Frame support and protection

Surrounding the deck is a tough, steel frame designed to protect the deck shell. It all starts with the frame on top of the deck which is then bolted to the shell providing extra protection. The front and rear roller brackets are attached to the framework, so as the front and rear rollers encounter obstacles, the force is transferred through the frame rather than through the deck shell. This design also decreases the distance from the blade tip to outside edge of the deck for closer trimming around objects like trees and fences.

Angled skid plate

An angled skid plate between the front roller and deck shell helps protect the front lip of the deck from tough terrain such as tree roots or other objects. The skid plate helps move the deck over the object to prevent the front edge from contacting and damaging the deck shell. The side of the deck also has additional protection to increase durability with a 38-mm (1.5-in.) tall and 12.7-mm (0.5-in.) thick steel stock welded to the decks edge.

Roller brackets are cast steel with extended housings to effectively protect the roller bearings from a wide range of debris types. The large front rollers are greaseable to help purge water and debris and use snap rings to ensure bearings stay in place, increasing durability and longevity of the front rollers.

Rear-discharge design provides premium cut quality and dispersal for less clumping and blowing for cleanup

68.6-cm (27-in.) deck and frame

Asymmetric rear discharge

The 9009A and 7400A TerrainCut™ Mowers 68.6-cm (27-in.) deck features a deck design with an asymmetric rear discharge cutout and molded chute to promote better airflow, leading to improved clipping dispersal and cut quality.

The unique shape of the deck shell cutout includes a heavily rounded opening on one side that gradually transitions to a larger opening on the other side of the cutout, allowing the grass to exit the deck evenly while significantly reducing the possibility of the deck congestion. This design incorporates deck structure along the bottom of the discharge area that reduces sound power, does not affect cut quality negatively, and acts as a foot guard eliminating the need for an external guard that can lead to external grass build up which can be dropped in the mowing pass over time.

When the asymmetric deck shell discharge shape is used in combination with the asymmetric discharge chute, this deck outperforms the competition in cut quality by minimizing clumping with smooth transitions and guiding the discharge material in a more dispersed pattern.

The improved dispersal will lead to less clean up and blowing, allowing machines to mow earlier in the day while saving time and reducing labor.

The proper blade selection for heights of grass, grass type, and sharp blades are keys to improved cut quality and dispersal. The removal of no more than one third of the grass blade is recommended. During heavy growth times it may require changing blades, mowing more often or raising the height of cut to improve clipping dispersal.

eHydro™ hydrostatic pump and large-capacity wheel motors for serious hill-climbing capabilities and lower maintenance

Large wheel motors

eHydro traction pump

The 9009A TerrainCut and the 8900A PrecisionCut utilizes the same eHydro traction pump and wheel motors in the A-model take performance, traction, and operation to the next level. This is combined with the standard GRIP system that reduces wheel slip by sending flow from the front wheel to the opposite rear wheel.

The system is designed to take on the most challenging course conditions ideal for undulating terrain, providing superior performance and traction out on the course.

The traction system in the A-models is driven by a servo-controlled hydrostatic pump. The control of the pump is no longer mechanical linkages, but instead it is electronic. The design reduced the complexity of the drive system meaning no more linkages to adjust or repair decreased routine maintenance and providing reliable day-in/day-out operation.

The end result is more options for mowing different terrain then just straight up and down. The standard GRIP system ensures that when mowing slopes on an angle the high side tire maintains tractions unlike like mechanical systems used on other rough mowers. This increases productivity in tight areas and reduces damage to turf from wheel slippage.

Forward/reverse pedals

The operator will benefit from eHydro, too. The pedal effort has been reduced, reducing the foot fatigue during many hours of mowing.

Tooled notch adjustment system makes height-of-cut (HOC) changes a breeze

Deck HOC System Overall

HOC System Closeup

One common element among John Deere golf mowing products, reel or rotary, is that adjustments are quick and easy. The 74000A, 8800A, and 9009A TerrainCut™ Rough, Trim, and Surrounds Mowers are no different. All HOC adjustments can be performed with simple tools utilizing an innovative notch system.

Height of cut changes on rotary decks are infrequent adjustments, and customer feedback has been that they prefer a system that utilizes tools with more positive clamp load to stay engaged and keep height of cut consistent in tough conditions. With the tooled design, there are no hand-engaged latches that may loosen over time. Instead, a bolt and nut are used to more positively clamp the adjustment in place. The deck still utilizes the notch system with a pointer and numbered indicators for the height of cut.

To adjust the deck, (2) 15 mm wrenches or sockets will be required, one to loosen the nut on the inside of the adjuster and the second to hold the bolt head. The system only needs to be loosened enough to disengage the teeth from the notches, but does not need to be completely removed to perform the adjustments. This allows the rollers to rotate upward and downward freely and easily.

Locate the HOC indicator on the inside of the adjuster arm and line up the tabs or use the top edge of the adjuster arm to line up the height on the gauge located on the outside. Re-engage the notches and re-tighten.

The adjustments must be performed on both the front and rear roller, and both rollers have the same adjustment process. A HOC label is also located on the rear of the deck to serve as a guide for setting the height of cut.

The HOC is adjustable 1.9 cm (3/4 in.) to 10.2 cm (4 in.), in 0.64-cm (1/4-in.) increments.

Screwdriver groove

If it has been a long time between height of cut adjustments and debris makes this difficult to disengage, a groove in the casting provides an area where a flat headed screwdriver can be inserted to help free the toothed casting from the notches. Or technicians can tap the end of the threaded end of the bolt to aid in dis-engaging as well.

Standard GRIP all-wheel drive traction system provides superior traction by reducing wheel slip

GRIP all-wheel drive traction valve and rear motors

For superior traction with a true hydraulic four-wheel drive (4WD), the GRIP all-wheel drive traction system is standard equipment on the 8800A and 9009A TerrainCut™ Rough Mowers. This system reduces wheel slip by sending flow from the front wheel to the opposite rear wheel.

For example, if the front-right wheel starts to slip, hydraulic flow is diverted to the left-rear wheel to maintain positive traction. By allowing the flow to cross over to the opposite rear wheel, the system maintains traction not only while climbing straight up hills, but also on side-hills.

The GRIP all-wheel drive traction system is always engaged when driving forward with the 8800A and 9009A TerrainCut Rough Mowers. There are no electronics to engage the 4WD system, simplifying the electrical system and the design of the valve at the rear of the machine.

In reverse, a standard switch is provided that disengages 4WD. The switch senses the reverse pedal has been depressed and shuts off flow to the rear drive wheels. This ensures the front drive tires are doing the work in reverse rather than the rear tires, minimizing wheel slip and scuffing of turf when backing up an incline.

The end result is more options for mowing different terrain than just straight up and down. The GRIP system ensures that when mowing slopes on an angle, the high side tire maintains tractions unlike like mechanical systems used on other rough mowers. This increases productivity in tight areas and reduces damage to turf from wheel slippage.

LoadMatch™ electronic setting compensates speed of machine to keep power to the cutting units to maintain cut quality

LoadMatch setting

LoadMatch is an electronic setting through the TechControl display that allows managers more control of the machine and how it is operated when out on the course.

Most operators will mow as fast as the mow setting will allow, keeping their traction pedal all the way down. However, in some conditions this can lead to poor cut quality.

One example is getting behind in mowing due to weather conditions. The grass is long and lush and to properly cut that amount of grass at one time, the operator should slow the traction speed. This allows the cutting units to maintain proper turning speed, process the grass, and properly cut in one pass. Not slowing down causes missed grass and an uneven appearance. This affects the after-cut appearance and also reduces productivity by having to mow a second time to properly cut the lush grass.

The LoadMatch feature compensates the traction speed of machine to keep power to the cutting units. In the long, lush conditions described above with LoadMatch engaged, the operator would still have the traction pedal all the way down, but the machine would sense the load and slow the traction speed to properly cut the mowing pass. Once the load is reduced, the machine will return to the normal mow speed.

LoadMatch puts the manager in control of cut quality instead of the operator.

AutoPedal™ feature lowers sound levels and fuel consumption during transport

AutoPedal

The AutoPedal feature controls engine rpm and transport speed of the machine through the eHydro™ foot pedal controls. AutoPedal is similar to an automobile gas pedal operation; the more the forward pedal is pressed, the faster the machine moves and the higher the engine rpm; pressing the pedal less, the slower the machine moves and the lower the engine rpm.

On conventional machines, the engine rpm is controlled by the operator by means of a manual or electric/manual throttle. Operators are trained to always operate the engine at wide-open throttle. Running at wide open throttle means running the engine at its fastest speed, which increases the sound levels and fuel usage.

The AutoPedal system allows the engine to only run as fast as needed, meaning that as operators transport around the course, the engine speed is only as fast as needed for the transport speed. If the operator approaches play and stops, the engine rpm goes to idle. This makes transporting quieter and since the engine does not run full speed all the time, it reduces fuel consumption.

Once the operator reaches the mowing site, engages the mow switch on the CommandARM™ controls, the engine rpm automatically increases to full throttle for mowing.

Double-acting, single-rod hydraulic steering cylinder for lines in roughs as straight as fairways and greens

Steering cylinder and linkage system

The 8800A and 9009A TerrainCut™ Rough Mower puts stripes on the roughs as straight as they are on the greens. Utilizing the same style steering cylinder as found on the 2500B PrecisionCut™ Mower, 2500E E-Cut™ Hybrid Riding Greens Mowers, PrecisionCut and E-Cut™Hybrid Fairway Mowers, the 8800A and 9009A TerrainCut Rough Mowers can mow the straightest lines of any rough mower in the industry today.

Traditional hydraulic cylinders have a rod on only one side of the cylinder. The cylinder on the 8800A and 9009A TerrainCut Rough Mower has one rod that goes through both sides of the cylinder. This equalizes volume and pressure on both sides of the cylinder packing, helping the operator make perfectly straight lines with little effort.

This system also equalizes the steering effort, meaning easy turns whether turning to the right or to the left.

The steering system is all about proven technology, not only with the cylinder itself, but also with the linkage system connecting the cylinder to the steering tires. The linkage system on the 8800A and 9009A TerrainCut Rough Mower has been used in John Deere Golf since 2008 and is common with the popular 5000 Series John Deere Utility Tractors, which already had proven reliability and durability with operators worldwide.

Low machine weight and tires sized for proper weight distribution, traction, and low ground pressure

Front tires

Strong lightweight frame design

The 9009A TerrainCut™ Rough Mower is the lowest weight at 27 in five-gang rough mower on the market. The lower weight helps reduce the overall foot print in fine turf conditions reducing compaction and turf stress. Along with the lower weight, the 9009A features 26.5 x12-12 turf tires for low footprint and maximum traction in the toughest conditions. This combination provides a strong traction package with low levels of ground compaction.

Optimize traction and contour following with on-board Weight Transfer Control

TechControl™ Display

The factory standard Weight Transfer Control system enhances mower traction or contour following capability by creating a hydraulic restriction in the lift system that allows a small amount of weight to be transferred from the decks to the traction wheels. There are five levels of weight transfer that can be adjusted directly through the TechControl™.

0 – Off
1 – Low
2 – Medium (Factory setting)
3 – High
4 – Max

A lower setting will transfer more weight to the mowing decks allowing them to follow ground undulations more effectively. On the flip side, a higher weight transfer setting will put more weight on the traction wheels which improves hill climbing capability. If the manager enables access to the feature, operators can maximize performance based on current mowing conditions by selecting the optimal level, without having to enter a passcode.

*High weight transfer settings slow the deck drop rate in the mow condition, causing a delay when mowing over the crest of hills.

Show More Show Less

Specs & Compare

Select up to 4 models to compare specifications

John Deere

9009A TerrainCut™

Rough Mower

Maximum rated horsepower

At 2800 rpm ISOC: 41.1 kW
At 2800 rpm ISOC: 55.1 hp

Drive pump

Tandem gear pump

Ground pressure

82.7 - 124 kPa
12 - 18 psi

Throttle

No throttle lever; Automatic controls with AutoPedal foot controls; manual control through TechControl display

Operator display

TechControl Display: Located on Command Arm; displays machine warnings, on-board electrical diagnostics; service timers on large easy to read screen; quick on the go settings for mow and transport speed; Turn Speed; LoadMatch™ and ON/OFF Weight Transfer and Cruise Control Use selection:; Cutting unit drop rate adjustment; ALL settings are pass code protected

Mowing speed

0 - 12.8 km/h
0 - 8 mph

Cutting unit size

68.58 cm
27 in.

Total width of cut

2.74 m; 17.15 cm overlap between front and rear decks
9 Feet; 108 in.; 6.75 in. overlap between front and rear decks

Reel diameter

Frequency of clip (FOC Reels) OR Blade tip speed (decks)

409 m
16,097 fpm

Type

Direct Inject Turbocharged Diesel B20 compliant

Compliant emission regulation

United States/Canada Final Tier 4

Horsepower

Maximum rated horsepower
At 2800 rpm ISOC: 41.1 kW
At 2800 rpm ISOC: 55.1 hp

Cylinders

Four

Displacement

2.091 L
127.6 cu in.

Air cleaner

2-stage dry element

Fuel

Diesel up to B20 compliant

Cooling system

Liquid centrifugal pump; forward machine location for optimum cooling

Traction drive

eHydro™ servo controlled hydraulic traction pump provides flow to All-wheel-drive GRIP system; GRIP traction provides hydraulic flow between front and opposite rear wheel for increased traction to reduce 'high side tire slippage

Drive pump

Tandem gear pump

Cutting units drive

Direct-coupled hydraulic gear motor

Hydraulic system capacity

45.4 L
12 U.S. gal.

Fuel tank capacity

60.6 L
16 U.S. gal.

Steering

Hydraulic power with dual rod, double acting steering cylinder

Front drive tires

26.5x14-12 6PR Ultra Trac

Steering tires

20x12-10 4PR Turf

Ground pressure

82.7 - 124 kPa
12 - 18 psi

Brakes

Internal hydraulic wet disc brakes with dynamic braking through closed loop hydrostatic system

ROPS

Standard, meets ISO 21299 standards

Cutting units lowered	1814.37 kg with decks up 4000 lb. with decks up

Throttle

No throttle lever; Automatic controls with AutoPedal foot controls; manual control through TechControl display

Forward/reverse

2-pedal

Mower lift

One-touch single handle

Parking brake

Electric Switch on Command Arm for Internal Wet Disk Brakes

Seat

Air Ride Suspension seat with seat belts and arm rest; fore/aft adjustment; weight and lumbar adjustment

PTO

Electric Switch on Command Arm for quick and easy transition from mow to transport

Ignition

Key Switch on Command Arm

Work lights

3 standard work lights in front

Tilt steering

Left Foot operated for easy adjustment

Operator display

Storage

Operator storage located on left side for easy access from operator seat

Height with ROPS

2220 mm
87.4 in.

Length

3393 mm
134 in.

Transport width

2287 mm @ 101.60 mm height of cut
90 in @ 4 in height of cut

Mowing position width

2.74 m; 17.15 cm overlap between front and rear decks
9 Feet; 108 in; 6.75 in. overlap between front and rear decks

Wheelbase

1750 mm
68.9 in.

Ground speed

Mowing
0 - 12.8 km/h
0 - 8 mph
Transport
0 - 20.12 km/h
0 - 12.5 mph
Reverse
0 - 6.4 km/h
0 - 5 mph

Number

Size

68.58 cm
27 in.

Total width of cut

2.74 m; 17.15 cm overlap between front and rear decks
9 Feet; 108 in.; 6.75 in. overlap between front and rear decks

Height of cut

Construction
single sheet 10-gauge steel stamped deck with front skid plate 1.5 inch (38mm) tall and ½ inch (12.7mm) thick steel stock welded to the decks edge
1.91 to 10.2 cm; no tool adjustment
.75 - 4 in; no tool adjustment

Frequency of clip (FOC Reels) OR Blade tip speed (decks)

Rollers
Rear: 7.62 cm
Rear: 3 in.
Front: 12.70 cm
Front: 5 in.
409 m
16,097 fpm

Reel diameter

Bedknife adjustment

Backlapping

Operator ear full engine

90 dBA

Operator ear reduced engine rpm (2300 rpm)

Measuring standard

ISO 11201

Attachments installed

Offers and Discounts