Exmark NAV20KC, NAV27KC manual Install Drive Wheels, Check Tire Pressure, Service Engine

Page 18

3.2.1Check the voltage of the battery with a digital voltmeter. Locate the voltage reading of the battery in the table below and charge the battery for the recommended time interval to bring the charge up to a full charge of 12.6 volts or greater.

IMPORTANT: Make sure the negative battery cables are disconnected and the battery charger used for charging the battery has an output of 16 volts and 7 amps or less to avoid damaging the battery (see the following chart for recommended charger settings).

Voltage

Percent

Maximum

 

Charging Interval

Reading

Charge

Charger Settings

 

 

 

12.6 or greater

100%

16 volts/7 amps

No Charging Required

12.4 – 12.6

75

– 100%

16 volts/7 amps

30 Minutes

12.2 – 12.4

50

– 75%

16 volts/7 amps

1

Hour

12.0 – 12.2

25

– 50%

14.4 volts/4 amps

2

Hours

11.7 – 12.0

0 – 25%

14.4 volts/4 amps

3

Hours

11.7 or less

0%

14.4 volts/2 amps

6

Hours or More

CAUTION

POTENTIAL HAZARD

If the ignition is in the “ON” position there is potential for sparks and engagement of components.

WHAT CAN HAPPEN

Sparks could cause an explosion or moving parts could accidentally engage causing personal injury.

HOW TO AVOID THE HAZARD

Be sure ignition switch is in the “OFF” position before charging the battery.

3.2.4Connect the negative battery cables.

NOTE: If the positive cable is also disconnected, connect the positive (red) cable and the red wire to the positive terminal on the battery first, then connect the negative (black) cable and black wire to the negative terminal on the battery. Slip insulator boot over the positive terminal.

NOTE: If time does not permit charging the battery, or if charging equipment is not available, connect the negative battery cables and run the vehicle continuously for 20 to 30 minutes to sufficiently charge the battery.

3.3INSTALL DRIVE WHEELS.

3.3.1Mount drive wheels with the valve stem to the outside of the unit. Secure using four (4) ½-20 wheel nuts installed on studs in hubs for each wheel. Torque to 95 ft-lbs (128 N-m).

3.4CHECK TIRE PRESSURE.

3.4.1Check tire pressure in drive tires. Proper inflation pressure for tires is 15 psi (103 kPa). Adjust if necessary.

Mower deck casters and rear caster tires are semi-pneumatic and do not need to be inflated.

3.5SERVICE ENGINE.

Engine is shipped with oil; check oil level and if necessary and fill to the appropriate level with oil as specified in Engine Owner’s Manual.

- 13 -

Image 18
Contents For Serial Nos 510,000 & Higher Potential Hazard Exmark Parts PLUS→ Program Operators Manual Table of Contents Safety Alert Symbol SafetyYour Safety is Involved TrainingCarbon monoxide can kill you Potential Hazard Operation Safe Zone for Mowing Maintenance and Storage Potential Hazard Safety Signs HOT Fuel System SpecificationsEngine Electrical SystemOperator Controls Hydrostatic Ground Drive SystemUncrate Mower Service Battery Assembly InstructionsDimensions TiresInstall Drive Wheels Service EngineCheck Tire Pressure Service Hydraulic OIL Operation InstructionsControls Push the lever forward and down to disengage the brake PRE-START Operating InstructionsPotential Hazard Transporting Disabling Hopper Auto Door OpenHopper Screen Removal Do not drive a unit on a public street or roadway Service Interval Daily Maintenance & AdjustmentsPeriodic Maintenance Service Interval MonthlyService Interval Daily or more often in dry conditions Service Interval 100 hrs Service Interval 40 hrs Lubrication ChartService Interval 40 hr Service Interval Refer to chartService Interval Once Yearly Service Interval 160 hrsService Interval 80 hrs Bushing Pivot LocationsService Interval As Required Service Interval After First 250 hrs Then yearly thereafterAdjustments Service Interval 500 hrsPTO Belt Routing PTO Belt Replacement Belt Guide AdjustmentBrake Bolt Adjustment Throttle Tension Adjust steering levers Speed Control Lever AdjustmentTracking Adjustment Forward Stop Bolt AdjustmentSteering Control Lever Response Adjustment Drive Pulley AlignmentHopper Door Adjustment Door ClosingPTO Brake Spring Adjustment Waste DisposalMotor OIL Disposal Mercury Switch Disposal Battery DisposalMower Cuts Unevenly Trouble ShootingMower Pulls Left or Right W/LEVERS Fully Forward Engine will not StartEngine Troubleshooting Table ProblemElectrical Diagram Hydraulic Diagram Year Limited Warranty Page See EXMARK’S Complete Line of Accessories