Exmark NAV27KC, NAV20KC manual Door Closing, Hopper Door Adjustment

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j)Tighten the 4 engine mounting bolts and 4 jackshaft mounting bolts. Check alignment after tightening.

k)Re-install pump belt tension spring.

l)Swing fuel tank in and re-install tank mounting nuts.

m)Complete Pump Drive Pulley Alignment Section 5.2.13.

5.2.13Pump Drive Pulley Alignment

Pump drive pulley alignment is necessary for any of the following conditions:

The engine mounting bolts have been loosened or the engine has been moved or replaced.

The pump pulleys have been loosened, moved, or replaced.

The PTO pulley alignment (Section 5.2.11) has been performed.

a)Stop engine, wait for all moving parts to stop, and remove key.

b)Loosen set screws on the both pump pulleys.

c)Using a straight edge, align each pump pulley with the engine pulley by sliding along the pump shaft. See Figure 19.

d)Re-tighten pulley set screws and recheck alignment.

5.2.14Rear caster pivot bearings pre-load adjustment.

a)Remove dust cap from caster and tighten

nyloc nut until washers are flat. Back the nyloc off 1/4 of a turn to properly set the pre-load on the bearings.

Note: If disassembled, make sure the spring washers are reinstalled as shown in Figure 20

5.2.15 Hopper Door Adjustment:

FIGURE 20

CASTER ADJUSTMENT

Door Closing:

 

a)Loosen 6 door hinge nuts. See Figure 21.

b)Open door and place a 3/8” rubber strip or 3/8” diameter hose between the hopper and hopper door. See Figure 20.

c)Close door and push tight against hopper.

d)Tighten hinge hardware. Open hopper door and remove rubber strip.

FIGURE 21

HOPPER DOOR ADJUSTMENT

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Contents For Serial Nos 510,000 & Higher Potential Hazard Exmark Parts PLUS→ Program Operators Manual Table of Contents Training SafetyYour Safety is Involved Safety Alert SymbolCarbon monoxide can kill you Potential Hazard Operation Safe Zone for Mowing Maintenance and Storage Potential Hazard Safety Signs HOT Electrical System SpecificationsEngine Fuel SystemHydrostatic Ground Drive System Operator ControlsTires Assembly InstructionsDimensions Uncrate Mower Service BatteryInstall Drive Wheels Service EngineCheck Tire Pressure Service Hydraulic OIL Operation InstructionsControls Push the lever forward and down to disengage the brake Operating Instructions PRE-STARTPotential Hazard Transporting Disabling Hopper Auto Door OpenHopper Screen Removal Do not drive a unit on a public street or roadway Service Interval Monthly Maintenance & AdjustmentsPeriodic Maintenance Service Interval DailyService Interval Daily or more often in dry conditions Service Interval 100 hrs Service Interval Refer to chart Lubrication ChartService Interval 40 hr Service Interval 40 hrsService Interval 160 hrs Service Interval Once YearlyBushing Pivot Locations Service Interval 80 hrsService Interval After First 250 hrs Then yearly thereafter Service Interval As RequiredAdjustments Service Interval 500 hrsPTO Belt Routing Belt Guide Adjustment PTO Belt ReplacementBrake Bolt Adjustment Throttle Tension Speed Control Lever Adjustment Adjust steering leversForward Stop Bolt Adjustment Tracking AdjustmentDrive Pulley Alignment Steering Control Lever Response AdjustmentDoor Closing Hopper Door AdjustmentPTO Brake Spring Adjustment Waste DisposalMotor OIL Disposal Battery Disposal Mercury Switch DisposalEngine will not Start Trouble ShootingMower Pulls Left or Right W/LEVERS Fully Forward Mower Cuts UnevenlyProblem Engine Troubleshooting TableElectrical Diagram Hydraulic Diagram Year Limited Warranty Page See EXMARK’S Complete Line of Accessories