Exmark 920 manual Electric Clutch Adjustment, Removing the Shim

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Maintenance

Figure 32

1.

Bolt

3.

Nut

2.

Spring

4.

Additional mounting

 

 

 

holes

Up to five springs can be secured to the seat box with a nut and bolt, see Figure 32.

Refer to the Parts Manual for spring and hardware part numbers.

Electric Clutch Adjustment

Figure 33

1.

Armature

5.

Brake spacer

2.

Field shell

6.

Re-gap shim

3.

Rotor

7.

Brake pole

4.Brake mounting bolt

Removing the Shim:

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Allow the machine to cool completely before starting these instructions.

2.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

3.Check the condition of the wire harness leads, connectors, and terminals. Clean or repair as necessary.

4.Verify that 12V is present at the clutch connector when the PTO switch is engaged.

5.Measure the gap between the rotor and armature. If the gap is greater than .04 inch (1 mm), proceed with the following steps:

A.Loosen both brake mounting bolts one-half to one full turn (see Figure 34).

Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.

Figure 34

1. Brake mounting bolt

2. Shim

B.Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed).

C.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

D.Re-torque each bolt (M6 x 1) to 10 ft-lb (13 N-m) +/-0.5 ft-lb (0.7 N-m).

E.Using a 0.010 inch thick feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown. (Due to the way the rotor and armature faces wear (peaks and valleys) it is sometimes difficult to measure the true gap.)

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Contents Pioneer S-SERIES California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Slope OperationUsing the Rollover Protection System Rops Maintenance and StorageSafety Safety Safety and Instructional Decals 109-6014 116-1119 107-2102 116-1121 116-3303 116-4465 116-4430 Model Numbers SpecificationsSystems Dimensions Hydrostatic Ground Drive SystemTires & Wheels Cutting DeckTorque Requirements Product Overview OperationControls Motion Control LeversIgnition Switch Fuel Shut-Off Valve Throttle ControlBrake Lever Hour MeterPTO Engagement Switch Drive Wheel Release ValvesPre-Start Operating InstructionsDeck Lift Pedal Transport LockStarting the Engine Open the Fuel Shut-Off ValveEngaging the PTO Stopping the Engine Disengaging the PTODriving the Machine Adjusting the Cutting Height Adjusting the Anti-Scalp RollersTransporting a Unit TransportingLoading a Unit Operation Maintenance Recommended Maintenance SchedulesRecommended Jump Starting Procedure Check Battery ChargeCheck Engine Oil Level Do Not jump start a weak battery if these conditions exist Check Mower BladesCheck Safety Interlock System Service DealerService Air Cleaner Check Rollover Protections Systems Roll Bar KnobsCheck Seat Belt Check for Loose HardwareCheck Hydraulic Oil Level Lubricate Grease FittingsCheck Tire Pressures Lubricate Caster Wheel HubsChange Fuel Filter Check Spark PlugsChange Hydraulic System Filter and Fluid Check Spark Arrester if equipped Thread Locking Adhesives Copper-Based Anti-seizeDielectric Grease Deck LevelingAdjusting the Blade Slope Inch DeckPump Drive Belt Tension Adjusting the Parking BrakeDeck Belt Tension Full Forward Tracking Adjustment Motion Control Handle AdjustmentMotion Control Linkage Adjustment Adjusting the Seat Ride Suspension Electric Clutch Adjustment Removing the ShimRemove Engine Shrouds and Clean Cooling Fins Clean Engine and Exhaust System AreaClean Hydro Fan Cooling Fins Clean Debris From Machine Clean Grass Build-Up Under DeckBattery Disposal Waste DisposalTroubleshooting Problem Possible Cause Corrective ActionSee Drive Wheel Release Valves section Schematics Electrical DiagramElectrical Logic Schematic Pioneer S-Series 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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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.

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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.
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