Exmark 850 Check Spark Arrester if equipped, Thread Locking Adhesives, Copper-Based Anti-seize

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Maintenance

4.If more than two threads (0.1 inch) are showing remove nut and install washer (P/N 1-523157) between hub and nut.

5.Torque the slotted nut to 200 ft-lb (271 N-m).

6.Then tighten nut until the next set of slots line up with the cross hole in shaft. Do Not loosen nut to align the slot. If required, tighten to the next set of slots.

7.Install new cotter pin (P/N 1-806800).

Note: Do Not use anti-seize on wheel hub.

Check Spark Arrester (if equipped)

Service Interval: Every 50 hours

WARNING

Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.

Do Not refuel or run engine unless spark arrester is installed.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Wait for muffler to cool.

3.If any breaks in the screen or welds are observed, replace arrester.

4.If plugging of the screen is observed, remove arrester and shake loose particles out of the arrester and clean screen with a wire brush (soak in solvent if necessary). Reinstall arrester on exhaust outlet.

Thread Locking Adhesives

Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners:

•ROPS spring pin housing.

•Hydro pump control arm, linkage bolt, and attachment bolt.

•Hydro park brake cable anchor mounting bolt

•Sheave and clutch retaining bolt in the end of engine crankshaft.

Thread locking adhesives are required for some hardware on engines — see the Engine manual.

Copper-Based Anti-seize

Copper-based anti-seize is used in the following location:

On threads of Blade Bolts. See Check Mower Blades section.

Dielectric Grease

Dielectric grease is used on all blade type electrical connections to prevent corrosion and loss of contact.

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Contents Lazer Z Advantage Series Models California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety Slope Operation OperationUsing the Rollover Protection System Rops Maintenance and Storage Safety Safety and Instructional Decals 109-3148 109-7232 109-8483 Message Display Model Numbers SpecificationsSystems Hydrostatic Ground Drive System SeatTires & Wheels Cutting DeckTorque Requirements DimensionsProduct Overview Controls OperationHour Meter Ignition SwitchFuel Shut-Off Valve Fuel GaugeLow Voltage Indicator PTO Engagement SwitchDrive Wheel Release Valves Deck Lift PedalOperating Instructions Pre-StartRaise the Rollover Protection System Rops Starting the Engine Open the Fuel Shut-Off ValveEngaging the PTO Disengaging the PTODriving the Machine Stopping the EngineDriving Forward Adjusting the Deck Lift Foot Pedal Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Driving in ReverseTransporting a Unit TransportingDo Not drive a unit on a public street or roadway Loading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeProposition 65 Warning Do Not jump start a weak battery if these conditions exist Recommended Jump Starting ProcedureCheck Mower Blades Check Safety Interlock SystemCheck Rollover Protections Systems Roll Bar Knobs Service Air CleanerCheck Seat Belt Check for Loose HardwareChange Engine Oil Check Hydraulic Oil LevelCheck Tire Pressures Lubricate Grease Fittings Check Condition Of BeltsLubricate Caster Wheel Hubs Lubricate Deck Lift Pivot Lubricate Brake Handle PivotCheck Spark Plugs Change Fuel FilterStyle a black finish Wheel Hub Slotted Nut Torque SpecificationStyle B yellow zinc Thread Locking Adhesives Check Spark Arrester if equippedCopper-Based Anti-seize Dielectric GreaseDeck Leveling AdjustmentsPump Drive Belt Tension Adjusting the Parking BrakeDeck Belt Tension Left Hand Brake Shown Removing the Shim Electric Clutch AdjustmentShim Motion Control Linkage Adjustment Motion Control Handle Adjustment Motion Control Damper AdjustmentMotion Control Neutral Lock Pivot Adjustment Adjusting the heightCaster Pivot Bearings Pre-Load Adjustment Motion Control Full Forward Tracking AdjustmentClean Debris From Machine Clean Engine and Exhaust System AreaClean Grass Build-Up Under Deck Remove Engine Shrouds and Clean Cooling FinsBattery Disposal Problem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Electrical Diagram SchematicsElectrical SchematicHydraulic Diagram Lazer Z Advantage Series Turf Equipment Page Page Date Description of Work Done Service Done By Service RecordPage 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.
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