2400 PrecisionCut™ Triplex Mower

To maximize fuel economy and lower operating cost, the 2400 PrecisionCut™ Triplex Mower features a fuel-injected, air-cooled gasoline engine.

• Engines featuring EFI technology operate more efficiently than carbureted engines, saving fuel while in both mow and transport mode.
• This V-twin engine offers 14.2-kW (19-hp) gross power (per SAE J1995 at 3600 rpm) for plenty of power while operating in a wide range of conditions, including verticutting.

For the operator, the EFI engine offers an easy-to-use starting system that operates just like a car and does not require a choke. Simply turn the key, the engine will start, and the operator is ready to go.

The fuel tank is a twin-sheet design to and meets fuel tank regulatory requirements and still has the capacity to get through a normal day without refueling. Easy access to the fuel cap and clear view of the fuel gauge keeps the operator productive all day.

The innovative offset design staggers wheel tracks in the cleanup cut by simply changing direction of travel each day. This allows the turf an additional day to recover before being driven over again and serves to minimize triplex ring and compaction.

The cutting units offset to the left-hand side of the machine. This provides good visibility to the center cutting unit. The traction unit frame is designed to maximize visibility down the left-hand side of the machine from the operator’s point of view.

The cutting-unit suspension and lift arms are designed with down stops for the lift arms to rest on when the cutting units are lowered to mow. This transfers the weight of the lift arms onto the traction unit frame rather than adding weight to the cutting unit.

The cutting-unit mounting system has a ball-joint swivel designed to allow the cutting unit to float independently of the lift arm. This design minimizes scalping and promotes a consistent height of cut by allowing the cutting unit to easily follow ground contours and steer in turns.

The cutting units can be easily and quickly removed from the lift arms by pulling the quick pin located behind the ball swivel joint and disconnecting the cutting unit support chain from the lift arm. This disengages the cutting unit assembly from the lift arm for service.

The cutting-unit drive motor also has a Quik-Tatch system that allows the technician to quickly remove the motor from the cutting unit for service. Simply loosen the mounting bolt that secure the motor to the bearing housing and twist the motor a quarter turn to remove.

The 2550 PrecisionCut™ and 2550 E-Cut™ Hybrid Riding Greens Mowers use a 14.6 kW (19.6 hp)* gross (per SAE J1995 at 3000 rpm) liquid-cooled diesel engine for smooth, efficient, and quiet operation.

With the 3-cylinder diesel engine and a large 29.9-L (7.9-U.S. gal.) fuel tank, the 2550 models give the operator power and fuel for a productive day of mowing.

*Engine horsepower and torque information are provided by the engine manufacturer to be used for comparison purposes only. Actual operating horsepower and torque will be less. Refer to the engine manufacturer’s website for additional information.

Several serviceability features were incorporated into the design of the 2400 and 2550 PrecisionCut™ Triplex Mowers to make routine checks and adjustments as easy as possible.

Features include:

• Good visibility to components, with a tilt-back hood and tilt-up seat platform. With the hood and seat platform in the raised position, access and visibility to the components underneath is very good.
• All daily service checks — engine oil level, air restriction indicator, engine coolant level, and hydraulic oil level (2550 only) — are made from the left side of the machine.
• Quick-attach cutting units — one pin located at the front of the lift arms removes the cutting units from the traction unit with no tools.
• Quick-attach cutting unit motors — just loosen the two hold-down nuts, twist the motor, and pull it out away from the cutting unit.
• Remote grease fittings for the front lift arms are located on the front hydraulic fitting bulkhead. These remotely mounted fittings allow ease of lubrication for the front lift arm pivot pins.
• Electronic controller that provides service diagnostics by means of lighted circuits.
• There is also an access panel on the operator platform that can be easily removed to provide access to the backlap valve and battery.

Low weight and compaction of a riding greens mower with the mowing system of a fairway mower equals great quality of cut in fairways and surrounds.

Many golf courses want to mow their fairways and other areas with riding greens mowers as a way to decrease compaction of the turf. However, the front-attaching-point yoke system used for greens is not the ideal solution for other areas due to the mowing speed, and the terrain is not as smooth as a green.

The 55.9-cm (22-in.) cutting unit rear-attaching-point yoke kit attaches to the rear cutting unit to help keep the rear roller on the ground consistently in undulating terrain. This also substantially improves cut quality by maintaining a consistent height of cut in virtually any condition. Rather than pushing the cutting unit through the turf, the yoke system pulls the cutting unit through the turf keeping the back end of the cutting unit engaged with the turf.

Using the 14-blade reel on greens mowers will lower the frequency of clip and also provide a clean, smooth cut. It can increase the playability of the putting surface and greens speed.

Frequency of clip (FOC) is defined as the distance traveled between consecutive cuts. In other words, it is how far the machine moves from the time one blade passes across the bedknife until the next blade passes. The lower the frequency of clip, the less distance that is traveled until the next blade passes.

There is a point of diminishing returns when it comes to frequency of clip. The less distance the mower travels between consecutive cuts, the more times the same grass blade is going to be impacted by the reel. Too low a frequency of clip can cause bruising of the turf – especially in the overlap from pass to pass.

Frequency of clip is often used as a measurement of cut quality, however there are other key factors that attribute to gaining good quality of cut. The factors that lead to good cut quality are:

• Geometry of the cutting unit
• Sharpness of reels and bedknife
• Proper cutting-unit setup (parallel and bedknife-to-reel clearance)
• Height of cut (HOC) (effective versus bench HOC)
• Bedknife selection
• Roller selection for the turf conditions
• Turf conditions

The geometry of John Deere cutting units makes the optimum range for frequency of clip between 0.160 in. (4.064 mm) and 0.190 in. (4.824 mm) for walk greens mowers. This is where the technology of the PrecisionCut™ walk greens mowers excels and provides a superior cut and after-cut appearance.

The grooved disc roller can be used with 55.9-cm (22-in.) QA5 cutting units, in combination with the Greens Tender Conditioner and FTC, to provide additional roller options for fairway, tees, and approach areas.

The increased diameter improves the durability over smaller rollers, and it features hardened discs for improved wear which retains spring tension for reduced maintenance, making it an ideal roller for fairway, tee, and approach mowing.