Exmark 850 manual Specifications, Model Numbers, Systems

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Specifications

Specifications

Model Numbers

Serial Nos: 850,000 and Higher

NAV20KC; NAV27KC

Systems

If the PTO is engaged while the hopper is tilted up.

Engine

Engine Specifications: See your Engine Owner’s Manual

RPM: Full Speed: 3600 ±50 RPM (No Load)

Idle: 1500 RPM

Fuel System

Capacity: 7.5 gal. (28 L)

Type of Fuel: Regular unleaded gasoline, 87 octane or higher; containing no more than 10% methanol or ethanol.

Fuel Filter: In-line 30 Micron Kohler P/N 2405010.

Fuel Shut-Off Valve: 1/4 turn increments in-line valve by fuel filter.

Electrical System

Charging System: Flywheel Alternator

Charging Capacity: 15 amps

Battery Type: BCI Group U1

Battery Voltage: 12 Volt

Polarity: Negative Ground

Fuses: Two 20 amp and one 30 amp blade type

Safety Interlock System:

PTO must be disengaged, brake engaged, and speed control lever in neutral position to start engine. (It is not necessary for the operator to be in the seat to start the engine.)

Operator must be in seat when PTO is engaged, brake is disengaged, or speed control lever is moved out of neutral or engine will stop.

Engine will stop in the following conditions:

If the speed control lever is moved from neutral position while brake is engaged.

Operator Controls

Steering and Motion Control:

Speed Control lever, located on RH console, sets maximum forward speed.

Steering levers, centered in front of the seat, control the speed and direction of travel of the respective drive wheels.

Moving speed control lever rearward to the neutral position places the drive system in neutral.

Note: The unit may be moved in reverse while the speed control is in the neutral position by pulling back on the steering levers.

PTO Engagement Lever: Engages drive to PTO (mower deck) and blower.

Parking Brake Lever: Pull back to engage parking brake.

Seat

Type: Standard seat with high back, foam padded (internal suspension).

Mounting: Seat is hinged to tilt up for access to hydraulic pumps and other components. The seat is held in the tilted position with a link.

Armrests: None.

Seat Safety Switch: Internal to the bottom seat cushion, non serviceable. Time delay module incorporated into the Safety Interlock System eliminates rough ground cut-outs.

Hydrostatic Ground Drive System

Hydrostatic Pumps: Two Hydro Gear variable displacement piston pumps.

Wheel Motors: Hydro Gear planetary reduction motors.

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Contents Navigator California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingSafety Operation Slope Operation Maintenance and Storage Safety Safety and Instructional Decals 103-9034 103-9724 109-4273 109-4638 109-7318 116-0404 Safety Systems SpecificationsModel Numbers Dimensions Torque Requirements Curb WeightProduct Overview Operation ControlsPre-Start Operating InstructionsStopping the Engine Engaging the PTODisengaging the PTO Driving the MachineClearing Hopper Screen TransportingEmptying Hopper Transporting a UnitLoading a Unit Maintenance Recommended Maintenance SchedulesCheck Engine Oil Level Check Battery ChargeRecommended Jump Starting Procedure Check Safety Interlock System Do Not jump start a weak battery if these conditions existChange Engine Oil Service Air CleanerCheck for Loose Hardware Check Condition Of Belts Check Hydraulic Oil LevelCheck Tire Pressures Lubricate Grease FittingsService Interval Yearly Lubricate Rear Caster Wheel HubsLubricate Steering Linkage Rod Ends Lubricate Brake Handle PivotLubricate Brake Rod Bushings Lubricate Hopper ActuatorCheck Wheel Hub Locknuts Fuel Tank Mounting Hardware SpecificationsChange Hydraulic System Filter Check Wheel Lug NutsPTO Drive Belt Tension PTO Belt ReplacementDielectric Grease Pump Drive Belt TensionPump Drive Belt Replacement Belt Guide AdjustmentAdjust Speed Control Lever Tension Adjust Safety SwitchBrake Adjustment Speed Control Linkage Adjustment Response Adjustment Steering Control LeverPump Drive Pulley Alignment Tracking AdjustmentPTO Drive Pulley Alignment PTO Brake Spring Adjustment Rear Caster Pivot Bearings Pre-Load AdjustmentHopper Door Adjustment Clean Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Waste DisposalTroubleshooting Problem Possible Cause Corrective ActionTroubleshooting Schematics Electrical DiagramElectrical Logic Schematic StartHydraulic Diagram Exmark Commercial Turf Equipment Page Service Record Date Description of Work Done Service Done ByPage This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options
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0, 850 specifications

The Exmark 850 is a top-of-the-line commercial mower, known for its durability, efficiency, and advanced features, making it a favorite among landscaping professionals. With a powerful engine and innovative technology, the Exmark 850 is designed to tackle tough mowing tasks while ensuring a high-quality cut.

One of the standout characteristics of the Exmark 850 is its robust engine performance. Powered by a reliable Kohler or Kawasaki engine, it delivers exceptional horsepower, enabling it to handle various terrains and grass types with ease. The engine is designed for fuel efficiency, allowing operators to work longer hours without frequent refueling, ultimately boosting productivity on the job.

The cutting deck of the Exmark 850 is engineered with precision, utilizing Exmark's proprietary UltraCut technology. This technology ensures that grass is cut evenly and efficiently, resulting in a clean, manicured appearance. The deck height is easily adjustable, allowing users to quickly change settings to accommodate different lawn conditions and preferences.

Another key feature is the innovative suspension system that enhances ride quality. The Exmark 850 is equipped with a heavy-duty front axle and high-performance suspension that absorbs bumps and uneven ground, allowing for a smoother mowing experience. This is especially beneficial for operators who spend long hours on the mower, reducing fatigue and improving comfort.

Ergonomics play a crucial role in the design of the Exmark 850. The operator station is thoughtfully crafted with optimal controls and comfortable seating, allowing for easy maneuverability and long-term use. The ergonomic handles and intuitive control layout make it easy for operators to navigate tricky landscapes, enhancing overall efficiency.

In terms of durability, the Exmark 850 is built to withstand the rigors of commercial use. The high-quality materials and construction ensure that this mower can handle challenging conditions, extending its lifespan and reducing maintenance needs. Additionally, Exmark offers an extensive warranty program, providing peace of mind for operators.

Safety features are also prioritized in the Exmark 850, with guards and shields designed to protect the operator while mowers are in use. These features also include emergency shut-off systems and blade brake systems, ensuring compliance with safety standards.

Overall, the Exmark 850 stands out as a high-performing, reliable, and efficient mower suitable for a variety of commercial landscaping tasks. With its powerful engine, advanced cutting technology, ergonomic design, and emphasis on durability and safety, it continues to be a top choice for professionals seeking high-quality lawn care equipment.