Exmark 850 manual Steering Control Lever, Response Adjustment

Page 34

Maintenance

across the terminals in the connector of the wiring harness.

3.Start the engine.

4.Run the unit at least 5 minutes with the speed control lever at full forward speed to bring hydraulic system oil up to operating temperature. Return speed control lever to neutral (full rear) position.

5.To obtain the neutral position, adjust the left and right pump control rod linkages that connect the steering control to the pump control arms until the wheels stop, or creep slightly in reverse.

6.Adjust the left pump linkage by rotating the tracking adjustment knob.

7.Adjust the right pump linkage by using a wrench to turn the double nuts on the assembly (see Figure 18)

Set forward stop bolt:

1.Remove seat deck (with seat attached) to obtain a clear view of the steering control shaft to complete this adjustment.

2.Push the speed control lever forward to full forward speed position.

3.If either steering control lever surface does not contact the stop bar at the full forward speed position, adjust the stop bolt until contact occurs (see Figure 19). Once contact occurs, turn the stop bolt one more full turn to prevent bottoming of the hydraulic pump internal stops.

Figure 19

1. Speed control Lever

2. Contact must be

forward stop bolt

maintained between

 

these components at full

 

forward speed condition

 

 

 

 

Steering Control Lever

 

 

Response Adjustment

 

 

1. Stop engine, wait for all moving parts to stop and

Figure 18

 

remove key. Engage parking brake.

 

2. Move the speed control lever to the full forward

1. Rotate tracking knob on 2.

Rotate double nuts on

position.

left side

right side

 

 

3. Lift the seat and locate the pump control springs.

8. Move the steering levers to the reverse

To increase responsiveness, increase spring

tension by hooking the rear spring anchor directly

position. While applying slight pressure to

to the anchor bolt. To decrease responsiveness,

the levers, allow the steering levers to return

hook the rear spring anchor to the anchor tab.

to neutral. The wheels must stop turning (or

 

slightly creep in reverse).

Note: Be sure both springs maintain the same

9. Stop engine and wait for all moving parts to

adjustment.

stop. Remove jumper wire from wire harness

 

connector and plug connector into seat switch.

 

10. Lower from jackstands.

34

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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 Model Numbers SpecificationsSystems Dimensions Product Overview Curb WeightTorque Requirements 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 SchedulesRecommended Jump Starting Procedure Check Battery ChargeCheck Engine Oil Level Check Safety Interlock System Do Not jump start a weak battery if these conditions existCheck for Loose Hardware Service Air CleanerChange Engine Oil 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 AdjustmentBrake Adjustment Adjust Safety SwitchAdjust Speed Control Lever Tension Speed Control Linkage Adjustment Response Adjustment Steering Control LeverPTO Drive Pulley Alignment Tracking AdjustmentPump Drive Pulley Alignment Hopper Door Adjustment Rear Caster Pivot Bearings Pre-Load AdjustmentPTO Brake Spring 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.
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