Exmark 920 manual Motion Control Damper Adjustment, Caster Pivot Bearings Pre-Load Adjustment

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Maintenance

because of the jumper wire being used. Run

engine at full throttle and release brake.

7.The reverse indicator spring must be correct before the following adjustments can be made. See the Reverse Indicator Adjustment section.

Note: The motion control lever needs to be in neutral while making any necessary adjustments.

The left rod assembly controls the left wheel and the right rod assembly controls the right wheel.

8.Bring the motion control lever into the neutral position. Adjust RH pump control rod length by rotating the double nuts on the rod in the appropriate direction until the wheels slightly creep in reverse (Figure 27). Move the motion control lever to the reverse position and while applying slight pressure to the lever allow the reverse indicator spring to bring the levers back to neutral. The wheel must stop turning or slightly creep in reverse. When adjustment is complete, tighten lock nuts onto ball joints.

9.Bring the LH motion control lever into the neutral position. Adjust the LH pump control rod length by rotating the tracking adjustment knob in the appropriate direction until the wheels slightly creep in reverse. Move the motion control lever to the reverse position and while applying slight pressure to the lever allow the reverse indicator spring to bring the levers back to neutral. The wheel must stop turning or slightly creep in reverse (Figure 28).

Motion Control Damper Adjustment

The top damper mounting bolt can be adjusted to obtain a more desired motion control lever resistance. See Figure 29 for mounting options.

Figure 29

1.Motion control bracket

2.Least resistance (softest feel)

3.Medium resistance (medium feel)

4.Most resistance (firmest feel)

5.Torque nyloc nut to 200 in-lb (16.7 ft-lb). Bolt must protrude past end of nyloc nut after torque.

6.Damper

7.Damper must move freely on bolt.

Caster Pivot Bearings Pre-Load Adjustment

Remove dust cap from caster and tighten nyloc nut until washers are flat and back off 1/4 of a turn to properly set the pre-load on the bearings. If disassembled, make sure the spring disc washers are reinstalled as shown in Figure 30.

Figure 28

Left-Hand Side of Unit

1.Turn LH tracking adjustment knob. (Do Not loosen any nuts on LH side)

10.Shut off unit. Remove jumper wire from wire harness connector and plug connector into seat switch.

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Contents Lazer Z D-SERIES California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingOperation Slope Operation Maintenance and Storage Using the Rollover Protection System RopsSafety 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 Hydrostatic Ground Drive System SeatTires & Wheels Cutting DeckTorque Requirements DimensionsOperation Product OverviewControls Motion Control LeversTracking Adjustment Knob Ignition SwitchBrake Lever Hour MeterPre-Start Biodiesel Ready Operating InstructionsRaise the Rollover Protection System Rops Open the Fuel Shut-Off ValveEngaging the PTO Disengaging the PTOStopping the Engine Driving the Machine Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Transporting Transporting a UnitLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeService Interval As required Recommended Jump Starting ProcedureEngine Block of the Stalled Check Mower BladesCheck Rollover Protections Systems Roll Bar Pins Check Safety Interlock SystemService Air Cleaner Check Seat BeltChange Engine Oil Check Hydraulic Oil LevelCheck Tire Pressures Lubricate Grease Fittings Check Condition Of BeltsLubricate Caster Wheel Hubs Wheel Hub Slotted Nut Torque SpecificationLubricate Brake Handle Pivot Lubricate Brake Rod BushingsCheck Spark Plugs Lubricate Motion Control Bronze BushingsDrain Fuel Filter/Water Separator Change Fuel Filter/Water SeparatorChange Engine Coolant Check Engine Coolant LevelThread Locking Adhesives Check Spark Arrester if equippedCopper-Based Anti-seize Mobil HTS Grease Or Food-Grade Anti-seizeDielectric Grease Deck LevelingMule Drive Belt Tension Adjustment Pump Drive Belt TensionDeck Belt Tension Belt Guide Adjustment Brake Link AdjustmentAlternator Belt Tension Brake Adjustment Electric Clutch AdjustmentReverse Indicator Adjustment Motion Control Linkage Adjustment Caster Pivot Bearings Pre-Load Adjustment Motion Control Damper AdjustmentClean Engine and Exhaust System Area Clean Engine Cooling SystemClean Grass Build-Up Under Deck Clean Debris From MachineClean the Radiator Waste DisposalBattery Disposal Problem Possible Cause Corrective Action TroubleshootingTroubleshooting Troubleshooting Electrical Diagram SchematicsElectrical Schematic Exmark Commercial Turf Equipment 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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0, 920 specifications

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