Exmark 920 manual Recommended Jump Starting Procedure

Page 32

Maintenance

Voltage

Percent

Maximum

Charging

Reading

Charge

Charger

Interval

 

 

Settings

 

12.0–12.2

25–50%

14.4 volts/4

2 Hours

 

 

amps

 

11.7–12.0

0–25%

14.4 volts/4

3 Hours

 

 

amps

 

11.7 or less

0%

14.4 volts/2

6 Hours or

 

 

amps

More

Important: For Kohler EFI units: Unplug the harness from the ECU before performing any welding on the equipment.

Recommended Jump

Starting Procedure

Service Interval: As required

1.Check the weak battery for terminal corrosion (white, green, or blue “snow”), it must be cleaned off prior to jump starting. Clean and tighten connections as necessary.

CAUTION

Corrosion or loose connections can cause unwanted electrical voltage spikes at anytime during the jump starting procedure.

Do Not attempt to jump start with loose or corroded battery terminals or damage to the engine or EFI may occur.

CAUTION

Connecting the jumper cables incorrectly (wrong polarity) can immediately damage the EFI system.

Be certain of battery terminal polarity and jumper cable polarity when hooking up batteries.

Note: The following instructions are adapted from the SAE J1494 Rev. Dec. 2001 – Battery Booster Cables – Surface Vehicle Recommended Practice (SAE – Society of Automotive Engineers).

WARNING

Batteries contain acid and produce explosive gases.

Shield the eyes and face from the batteries at all times.

Do Not lean over the batteries.

Note: Be sure the vent caps are tight and level. Place a damp cloth, if available, over any vent caps on both batteries. Be sure the vehicles do not touch and that both electrical systems are off and at the same rated system voltage. These instructions are for negative ground systems only.

3.Connect the positive (+) cable to the positive (+) terminal of the discharged battery that is wired to the starter or solenoid as shown in Figure 19.

DANGER

Jump starting a weak battery that is cracked, frozen, has low electrolyte level, or an open/shorted battery cell, can cause an explosion resulting in serious personal injury.

Do Not jump start a weak battery if these conditions exist.

2.Make sure the booster is a good and fully charged lead acid battery at 12.6 volts or greater. Use properly sized jumper cables (4 to 6 AWG) with short lengths to reduce voltage drop between systems. Make sure the cables are color coded or labeled for the correct polarity.

Figure 19

1.Positive (+) cable on discharged battery

2.Positive (+) cable on booster battery

3.Negative (–) cable on the booster battery

4.Negative (–) cable on the engine block

5.Booster battery

6.Discharged battery

7.Engine block

32

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Contents Lazer Z S-SERIES California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Using the Rollover Protection System Rops Slope OperationMaintenance and Storage For Kohler EFI Electronic Fuel Injection Units Safety and Instructional Decals 109-7232 109-8483 116-0752 PTO Switch Symbols Systems SpecificationsModel Numbers Seat Hydrostatic Ground Drive SystemTires & Wheels Cutting DeckDimensions Overall WidthOverall Length Overall HeightWheel Base Center of Caster Tire to Center of Drive Tire Curb WeightTread Width Center to Center of Tires, Widthwise Accessory Weight Table Worksheet Torque RequirementsProduct Overview OperationControls Motion Control LeversIgnition Switch Choke Control All Units Except Kohler EFIThrottle Control Brake LeverDrive Wheel Release Valves Fuel Shut-Off ValveFuel Gauge Pre-Start Operating Instructions Raise the Rollover Protection System RopsOpen the Fuel Shut-Off Valve Starting the EngineEngaging the PTO Disengaging the PTOStopping the Engine Driving the MachineAdjusting the Cutting Height Driving ForwardAdjusting the Anti-Scalp Rollers Loading a Unit TransportingTransporting a Unit Maintenance Recommended Maintenance SchedulesCheck Battery Charge Check Engine Oil LevelRecommended Jump Starting Procedure Do Not jump start a weak battery if these conditions existCheck Mower Blades Check Seat Belt Check Safety Interlock SystemCheck Rollover Protections Systems Roll Bar Knobs Service Air Cleaner Check for Loose HardwareChange Engine Oil Check Hydraulic Oil LevelCheck Tire Pressures Check Condition Of BeltsLubricate Grease Fittings Lubricate Caster Wheel HubsLubricate Brake Handle Pivot Lubricate Deck Lift PivotCheck Spark Plugs Change Fuel FilterWheel Hub Slotted Nut Torque Specification Change Hydraulic System Filter and FluidCheck Spark Arrester if equipped Thread Locking AdhesivesCopper-Based Anti-seize Dielectric GreaseAdjustments Deck LevelingPump Drive Belt Tension Deck Belt TensionAdjusting the Parking Brake Left Hand Brake ShownElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Motion Control Handle Adjustment Motion Control Damper AdjustmentMotion Control Neutral Lock Pivot Adjustment Caster Pivot Bearings Pre-Load Adjustment Adjusting the TiltClean Engine and Exhaust System Area Remove Engine Shrouds and Clean Cooling FinsClean Hydro Fan Cooling Fins Clean Debris From MachineBattery Disposal Troubleshooting Problem Possible Cause Corrective ActionSee Drive Wheel Release Valves section Troubleshooting Schematics Diagram All units except Kohler EFISchematics Electrical Logic Schematic All units except Kohler EFI Schematics Hydraulic Diagram General Warranty Conditions and Products Covered 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
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920 specifications

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