Exmark 920 manual See Drive Wheel Release Valves section

Page 51

 

 

 

 

Troubleshooting

 

 

 

 

 

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

Engine loses power

1.

Engine load is excessive

1.

Reduce the ground speed.

 

2.

Air cleaner is dirty.

2.

Clean or replace the air cleaner element.

 

3.

Oil level in the crankcase is low.

3.

Add oil to the crankcase.

 

4.

Cooling fins and air passages for the

4.

Remove the obstructions from the cooling

 

 

engine are plugged.

 

fins and air passages.

 

5.

Dirt in fuel filter.

5.

Replace the fuel filter.

 

6.

Dirt, water, or stale fuel is in the fuel

6.

Contact an Authorized Service Dealer.

 

 

system.

 

 

 

 

 

 

 

Mower pulls left or right (with levers fully

1.

Tire pressure in drive tires not correct.

1.

Adjust tire pressure in the drive tires.

forward)

 

 

 

 

 

 

 

 

 

Machine does not drive

1.

Drive release handle not in “operating”

1.

Position handle in “operating” position;

 

 

position.

 

see Drive Wheel Release Valves section

 

 

 

 

in Operation.

 

2.

Drive or pump belt is worn, loose or

2.

Change the belt.

 

 

broken.

 

 

 

3.

Drive or pump belt is off a pulley.

3.

Change the belt.

 

4.

Broken or missing idler spring.

4.

Replace the spring.

 

5.

Hydraulic fluid level is low or too hot.

5.

Add hydraulic fluid to reservoir or let it

 

 

 

 

cool down.

 

 

 

 

 

Uneven cutting height.

1.

Blade(s) not sharp.

1.

Sharpen the blade(s).

 

2.

Cutting blade(s) is/are bent.

2.

Install new cutting blade(s).

 

3.

Mower deck is not level.

3.

Level mower deck from side-to-side and

 

 

 

 

front-to-rear.

 

4.

Underside of mower is dirty.

4.

Clean the underside of the mower.

 

5.

Tire pressure in drive tires not correct.

5.

Adjust tire pressure in the drive tires.

 

6.

Blade spindle bent.

6.

Contact an Authorized Service Dealer.

 

7.

Tips of adjacent blades are at an uneven

7.

Replace blades, spindles and (or) check

 

 

cutting height. Blades tips should be even

 

for damage to mower deck.

 

 

within 3/16 inch which is approximately

 

 

 

 

one blade thickness.

 

 

 

 

 

 

 

Abnormal vibration

1.

Cutting blade(s) is/are bent or unbalanced.

1.

Install new cutting blade(s).

 

2.

Blade mounting bolt is loose.

2.

Tighten the blade mounting bolt.

 

3.

Engine mounting bolts are loose.

3.

Tighten the engine mounting bolts.

 

4.

Loose engine pulley, idler pulley, or blade

4.

Tighten the appropriate pulley.

 

 

pulley.

 

 

 

5.

Engine pulley is damaged.

5.

Contact an Authorized Service Dealer.

 

6.

Blade spindle is bent.

6.

Contact an Authorized Service Dealer.

 

7.

Belt is damaged.

7.

Install new belt.

 

 

 

 

 

Blades do not rotate.

1.

Drive belt is worn, loose or broken.

1.

Check the belt tension.

 

2.

Deck belt is worn, loose or broken.

2.

Install new deck belt.

 

3.

Deck belt is off pulley.

3.

Install belt on clutch and deck pulleys,

 

 

 

 

idlers, and tensioning idler per routing

 

 

 

 

decal on deck.

 

4.

Broken or missing idler spring.

4.

Replace the spring.

 

5.

Drive belt not routed correctly.

5.

Refer to belt routing decal on deck.

 

 

 

 

 

51

Image 51
Contents Lazer Z S-SERIES California Introduction Contents Training SafetySafety Alert Symbol Safe Operating PracticesSafety Operation Slope Operation Using the Rollover Protection System RopsMaintenance and Storage For Kohler EFI Electronic Fuel Injection Units Safety and Instructional Decals 109-7232 109-8483 116-0752 PTO Switch Symbols Specifications Model NumbersSystems Cutting Deck SeatHydrostatic Ground Drive System Tires & WheelsOverall Height DimensionsOverall Width Overall LengthCurb Weight Tread Width Center to Center of Tires, WidthwiseWheel Base Center of Caster Tire to Center of Drive Tire Torque Requirements Accessory Weight Table WorksheetMotion Control Levers Product OverviewOperation ControlsBrake Lever Ignition SwitchChoke Control All Units Except Kohler EFI Throttle ControlFuel Shut-Off Valve Fuel GaugeDrive Wheel Release Valves Pre-Start Starting the Engine Operating InstructionsRaise the Rollover Protection System Rops Open the Fuel Shut-Off ValveDriving the Machine Engaging the PTODisengaging the PTO Stopping the EngineDriving Forward Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Transporting Transporting a UnitLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeDo Not jump start a weak battery if these conditions exist Recommended Jump Starting ProcedureCheck Mower Blades Check Safety Interlock System Check Rollover Protections Systems Roll Bar KnobsCheck Seat Belt Check Hydraulic Oil Level Service Air CleanerCheck for Loose Hardware Change Engine OilLubricate Caster Wheel Hubs Check Tire PressuresCheck Condition Of Belts Lubricate Grease FittingsChange Fuel Filter Lubricate Brake Handle PivotLubricate Deck Lift Pivot Check Spark PlugsChange Hydraulic System Filter and Fluid Wheel Hub Slotted Nut Torque SpecificationDielectric Grease Check Spark Arrester if equippedThread Locking Adhesives Copper-Based Anti-seizeDeck Leveling AdjustmentsDeck Belt Tension Pump Drive Belt TensionLeft Hand Brake Shown Adjusting the Parking BrakeElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Motion Control Damper Adjustment Motion Control Neutral Lock Pivot AdjustmentMotion Control Handle Adjustment Adjusting the Tilt Caster Pivot Bearings Pre-Load AdjustmentClean Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Clean Hydro Fan Cooling FinsBattery Disposal Problem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Diagram All units except Kohler EFI SchematicsSchematics Electrical Logic Schematic All units except Kohler EFI Schematics Hydraulic Diagram General Warranty Conditions and Products Covered 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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920 specifications

The Exmark 920 is an exceptional piece of equipment tailored for professionals and enthusiasts alike. Designed with an emphasis on performance and reliability, this mower embodies the pinnacle of lawn care technology. Known for its robust construction, the Exmark 920 is equipped with a powerful engine, ensuring efficient and effective mowing even in demanding conditions.

One of the standout features of the Exmark 920 is its cutting deck. With a 52-inch or 60-inch mower deck option, it allows users to cover a large mowing area quickly. The deck is crafted from high-strength steel, providing durability and longevity while maintaining a lightweight design that enhances maneuverability. Innovative blade design promotes superior airflow for an even cut, preventing clumping and ensuring a polished finish across various grass types.

The Exmark 920 utilizes advanced technology, including the innovative RED Technology, which enhances engine performance by optimizing power consumption. This results in reduced fuel consumption while maintaining the required power output for demanding tasks. Additionally, the mower’s intuitive controls include a user-friendly interface, allowing for easy adjustments and settings, catering to the varying needs of different lawn types and conditions.

Another notable feature of the Exmark 920 is its all-day comfort design. With an ergonomic seat and advanced suspension system, operators can tackle long mowing sessions without discomfort. The padded seat is adjustable, providing maximum support to minimize fatigue, while the suspension system absorbs bumps and uneven terrain for a smoother ride.

Furthermore, the Exmark 920 prioritizes serviceability. Easy access points for maintenance and a well-designed layout ensure that routine tasks, such as oil changes and blade replacements, can be completed efficiently. The model also comes equipped with LED headlights for improved visibility during early morning or late evening mowing.

In summary, the Exmark 920 is a sophisticated mower combining power, advanced technology, and design for comfort and utility. Its high-performance engine, durable cutting deck, user-friendly controls, and serviceable layout make it an ideal choice for anyone seeking to achieve a well-manicured lawn with professional results. Whether for commercial or residential use, the Exmark 920 stands out as a leading option in the market, enabling users to tackle any mowing challenge with confidence and ease.