Exmark 850 manual Wheel Drive Belt Pulley Scrapers, Engine to Mower Deck Belt, Transmission Belt

Page 28

Maintenance

Height Adjustment Table and notes in the Adjusting the Cutting Height section.

9.Install unused spacers between top of spindle and spindle nut.

10.Torque bolt to 75–80 ft-lb (102–109 N-m) (see Figure 12).

Wheel Drive Belt Pulley Scrapers

1.Stop engine and wait for all moving parts to stop. Engage parking brake. Remove key or spark plug wire(s).

2.Be sure mud and grass scraper, on each side, is adjusted properly and centered in the pulley grooves. The pointed part of the scraper should be centered and as deep in the pulley groove as possible without rubbing at any point.

 

 

 

Engine to Mower Deck Belt

 

 

 

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

 

 

 

Engage parking brake. Remove key or spark plug

 

 

 

wire(s).

 

 

 

2. Check the adjustment of the lower blade drive

 

 

 

linkage located between the bellcrank on the

 

 

 

engine deck and assist arm on the mower deck.

 

 

 

Lengthen or shorten the linkage. When properly

 

 

 

adjusted, there should be 1/16 inch to 1/8 inch

 

Figure 12

 

(2–3 mm) of clearance between bell-crank and

 

 

transmission output shaft when belt is engaged.

1. Spring disc washer

2.

Blade bolt torque to

Make sure the assist arm is against the rear assist

(cone towards bolt head)

75–80 ft-lb (102–109

arm stop on the deck (see Figure 13). Push the

 

 

N-m)

lever down to the disengaged position. The assist

 

 

 

 

 

 

arm should contact the front assist arm stop on

Transmission Belt

the deck. If it does not contact, readjust so that

the bellcrank is closer to the transmission output

Adjustment

 

 

shaft.

 

 

3. Belt must be tight enough to not slip during heavy

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

loads while cutting grass. Over-tensioning will

Engage parking brake. Remove key or spark plug

reduce belt and spindle bearing life. To adjust

wire(s).

 

 

belt tension, loosen the 5/16 inch whizlock nut

2. To tighten transmission belt, loosen the 3/8 inch

on turnbuckle and rotate the turnbuckle; rotate

nyloc nut on transmission belt idler pulley. Slide

turnbuckle toward rear of mower to tighten, and

bolt inward in slot and retighten nyloc nut.

toward front of mower to loosen belt tension (see

3. When properly adjusted, the belt should have 1/2

Figure 13). Leave a minimum of 5/16 inch (.79

cm) of the eyebolt threads engaged on both ends

inch (1.3 cm) of deflection with three pounds

of the turnbuckle.

of pressure on the belt midway between the

For 48” Decks: If there is no adjustment left in

transmission and engine pulley.

the turnbuckle and the belt is still loose, the rear idler pulley can be repositioned in the front hole (See Figure 12). The belt guide located next to the pulley must also be repositioned in the front hole when the pulley is moved. The turnbuckle will need to be readjusted.

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Contents Metro California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Slope OperationMaintenance and Storage Safety and Instructional Decals 403143 98-5954 103-1623 117-2718 103-5626 Model Numbers SpecificationsSystems Dimensions Torque RequirementsProduct Overview OperationControls Operator Presence Control OPC LeversOff-Run Switch Choke ControlThrottle Control Drive LeversPre-Start Operating InstructionsDriving the Machine For ECS HandlesChanging Gears TransportingTransporting a Unit Maintenance Recommended Maintenance SchedulesCheck Mower Blades Check Engine Oil LevelReplacing the Discharge Deflector Service Air Cleaner Check Safety Interlock SystemCheck for Loose Hardware Change Engine Oil Check Tire PressuresCheck Condition Of Belts Lubricate Grease FittingsCheck Spark Plugs Change Fuel FilterThread Locking Adhesives Mobil HTS Grease Or Food-Grade Anti-seizeCopper-Based Anti-seize Dielectric GreaseAdjustments Adjusting the Cutting HeightAdjusting the Axle Position Adjusting the Number of Spacers below Caster Support Hub Adjusting the Cutting Height with Blade SpacersAdjustment Wheel Drive Belt Pulley ScrapersEngine to Mower Deck Belt Transmission BeltBlade Brake Adjustment Inch Deck Shown for Reference OnlyBelt Guide Adjustment Brake and Wheel Drive Linkage AdjustmentLeft Side Shown Shifter Lever Adjustment Right Side of Unit ShownShifter Detent Adjustment PTO Safety Switch AdjustmentHandle Height Adjustment Wheel Drive Spring Tension AdjustmentClean Engine and Exhaust System Area Remove Engine Shrouds and Clean Cooling FinsClean Debris From Machine Clean Grass Build-Up Under DeckWaste Disposal Motor Oil DisposalTroubleshooting Problem Possible Cause Corrective ActionTroubleshooting Schematics Exmark Commercial Turf Equipment Page Page Service Record Date Description of Work Done Service Done ByThis page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options
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00 & Higher, 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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