Fuses, Relays and Diodes

Important: Blown fuses indicate electrical system malfunctions. Determine what caused the fuse to blow and repair the problem before replacing the fuse.

The fuse, relay and diode boxes are located in the engine compartment, just behind the cab, on the right side of the machine.

AHigh-speed

CMedium-speed

ELow-speed

Fuse Rated Current (A)

CircuitFuse Rated Current (A) Circuit

F20AControl KeypadG20AWindshield wiper, Door

H20ACab blower fan I20A Electronic Control Unit (ECU) Note: if required

J5ADome light, RadioK10AHorn, Alarm

L20A Exhaust Gas Recirculation (EGR) M20A Operator’s seat switch/ optional air suspension

N3AElectronic display LCDO5AHand control buttons

Diode Circuit Diode Circuit

PIgnition QEGR Valve (Tier 4)

Fuse Rated Current (A) CircuitFuse Rated Current (A) Circuit

R50ACab heat, WiperS80AGlow Plugs

T60AStarter

V50A Micro Controller Unit (MCU)

U20A Ignition, Accessories, Track Tension

W30ARoad lights

Before servicing the battery or electrical system, be sure the battery disconnect switch (if equipped) is in the OFF position. If not equipped with a disconnect switch, disconnect the ground (-) terminal from battery.

The battery is a 12-volt, wet-cell battery. To access the battery, remove front floor panel. The battery top must be kept clean. Clean it with an alkaline solution (ammonia or baking soda and water). After foaming has stopped, flush the battery top with clean water. If the terminals and cable connection clamps are corroded or have a build-up, disconnect the cables and clean the terminals and clamps with the same alkaline solution.

Explosive gas is produced while a battery is in use or being charged. Keep flames or sparks away from the battery area. ALWAYS charge the battery in a well-ventilated area.

Never lay a metal object on top of a battery, because a short circuit can result.

Whenever the battery is removed, be sure to disconnect the negative (-) battery terminal connection first.

Battery acid is harmful on contact with skin or fabrics. If acid spills, follow these first-aid tips:

1.Immediately remove any clothing on which acid spills.

2.If acid contacts the skin, rinse the affected area with running water for 10 to 15 minutes.

3.If acid contacts the eyes, flood the eyes with running water for 10 to 15 minutes. See a doctor at once. Never use any medication or eye drops unless prescribed by the doctor.

4.To neutralize acid spilled on the floor, use one of the following mixtures: a.0.5 kg (1 lb.) of baking soda in 4 L (1 gal.) of water. b.0.5 L (1 pt.) of household ammonia in 4 L (1 gal.) of water.

Windshield Washer Reservoir

The windshield washer reservoir (E, Figure 114) is located inside the engine compartment. Check the windshield washer reservoir level daily before starting the machine and fill if necessary.

Important: Fill the windshield washer fluid reservoir with clean tap water or windshield washer fluid only. If using tap water, add a cleaning agent if required and/or antifreeze in cold weather.

Long-Term Storage

If storing the machine for a long period (longer than 2 months), perform the procedures in this section.

Before Storage

1.Wash the entire machine. Treat vinyl surfaces in the operator’s compartment with a vinyl protectant.

2.Perform all steps for long-term engine storage according to the engine operation manual.

3.Check drive sprocket wear. See “Sprocket Tooth Wear and Track Life” on page95.

4.Lubricate all grease fittings. See “General Lubrication” on page132.

5.Check all fluid levels and top-off as necessary.

6.Add a fuel stabilizer to the fuel system according to the fuel supplier’s recommendations.

7.If the machine is so equipped, turn the battery disconnect switch to the off position. See “Battery Disconnect Switch” on page76.

8.Remove and fully charge the battery. Store the battery in a cool, dry location.

9.If the machine will not be operated for a month or longer, apply grease to all exposed hydraulic cylinder rod areas or retract all cylinders so rod exposure is minimized. Apply grease to any remaining rod areas.

10.Protect against extreme weather conditions such as moisture, sunlight and temperature. Fill the engine coolant system with the proper mix of antifreeze and water as required for expected temperatures according to “Coolant Compound Mixtures” on page193.

Important: Contact your dealer for additional storage preparation information if the machine will be stored in an environment where temperatures could range below -42°C (44°F), and/or above 49°C (120°F).