Exmark 920 manual Electric Clutch Adjustment, Brake Adjustment

Page 42

Maintenance

Electric Clutch Adjustment

No adjustment necessary. However when the clutch brake has worn to the point where the clutch no longer engages consistently, the shim can be removed to extend the clutch life.

Figure 21

1.

Lever down

6.

Remove pin to adjust

 

(disengaged)

 

rod length for additional

 

 

 

brake adjustment

2.

Lever up (engaged)

7.

Trunnion roller

3.

Nyloc nut below trunnion

8.

Spring retainer bracket

 

roller

 

 

4.

Nyloc nut below spring

9.

2 13/16 inches (7.1 cm)

5.

1/8 to 3/16 inch (3.2 to

10.

Jam nut above trunnion

 

4.8 mm)

 

roller

 

 

 

 

Brake Adjustment

1.Check for brake link 2 13/16 inches (7.1 cm) measurement as described in the Brake Link Adjustment section.

2.Engage the brake lever (lever up). The space between the brake spring bracket and the nyloc nut under the spring should measure 1/8 inch to 3/16 inch (3.2–4.8 mm).

3.If adjustment is necessary, loosen jam nut above the trunnion roller. Adjust the nyloc nut under the trunnion roller until distance listed above exists between the spring retainer bracket and the adjacent nyloc nut. Tighten the jam nut above the trunnion roller.

4.If the correct gap can no longer be achieved because there is no clearance between the nyloc nut below the spring and the jam nut above the trunnion or there are no threads left on the bottom nyloc nut, the length of the brake rod can be adjusted. Remove a pin from a yoke at either end of the brake rod and lengthen (or shorten) the brake rod until the correct gap can be achieved by following steps 2 and 3.

Figure 22

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 23).

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.

42

Image 42
Contents Lazer Z D-SERIES California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingOperation Slope Operation Using the Rollover Protection System Rops Maintenance and StorageSafety Safety Safety and Instructional Decals 103-0223 103-0261 103-1798 103-2076 103-7218 107-2102 109-0872 109-1214 109-1215 109-1399 109-2219 109-2263 109-2264 109-2478 109-2951 109-3148 117-2718 19426-87881 19426-87903 107-9866 Specifications Model NumbersSystems Tires & Wheels SeatHydrostatic Ground Drive System Cutting DeckDimensions Torque RequirementsControls Product OverviewOperation Motion Control LeversBrake Lever Ignition SwitchTracking Adjustment Knob Hour MeterPre-Start Raise the Rollover Protection System Rops Operating InstructionsBiodiesel Ready Open the Fuel Shut-Off ValveEngaging the PTO Disengaging the PTOStopping the Engine Adjusting the Cutting Height Driving the MachineAdjusting the Anti-Scalp Rollers Transporting Transporting a UnitLoading a Unit Maintenance Recommended Maintenance SchedulesCheck Battery Charge Check Engine Oil LevelRecommended Jump Starting Procedure Service Interval As requiredCheck Mower Blades Engine Block of the StalledService Air Cleaner Check Safety Interlock SystemCheck Rollover Protections Systems Roll Bar Pins Check Seat BeltChange Engine Oil Check Hydraulic Oil LevelCheck Tire Pressures Check Condition Of Belts Lubricate Grease FittingsLubricate Brake Handle Pivot Wheel Hub Slotted Nut Torque SpecificationLubricate Caster Wheel Hubs Lubricate Brake Rod BushingsDrain Fuel Filter/Water Separator Lubricate Motion Control Bronze BushingsCheck Spark Plugs Change Fuel Filter/Water SeparatorCheck Engine Coolant Level Change Engine CoolantCheck Spark Arrester if equipped Thread Locking AdhesivesDielectric Grease Mobil HTS Grease Or Food-Grade Anti-seizeCopper-Based Anti-seize Deck LevelingMule Drive Belt Tension Adjustment Pump Drive Belt TensionDeck Belt Tension Belt Guide Adjustment Brake Link AdjustmentAlternator Belt Tension Electric Clutch Adjustment Brake AdjustmentReverse Indicator Adjustment Motion Control Linkage Adjustment Motion Control Damper Adjustment Caster Pivot Bearings Pre-Load AdjustmentClean Engine Cooling System Clean Engine and Exhaust System AreaClean the Radiator Clean Debris From MachineClean Grass Build-Up Under Deck Waste DisposalBattery Disposal Troubleshooting Problem Possible Cause Corrective ActionTroubleshooting Troubleshooting Schematics Electrical DiagramElectrical Schematic Exmark Commercial Turf Equipment Page 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
Related manuals
Manual 60 pages 29.4 Kb Manual 48 pages 5.05 Kb Manual 52 pages 61.7 Kb Manual 60 pages 62.85 Kb Manual 52 pages 50.76 Kb Manual 60 pages 57.72 Kb Manual 64 pages 1.01 Kb Manual 52 pages 57.34 Kb Manual 60 pages 42.39 Kb Manual 64 pages 37.72 Kb Manual 52 pages 8.82 Kb

0, 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.