OMMT4664

Issue H7

1800 Utility Vehicle

Serial No. (020161 - )

Introduction

Safety

Controls

Operating

Replacement Parts

Service Machine Safely

Service Intervals

Service Engine

Service Transmission

Service Steering & Brakes

Service Electrical

Cleaning Or Replacing Battery

Checking Battery Electrolyte Level

Charging The Battery

Charging Rates

Using Booster Battery

Changing Fuses

Changing Indicator Bulb

Cleaning And Gapping Spark Plugs

Service Miscellaneous

Troubleshooting

Storage

Assembly

Warranty

Specifications

John Deere Quality Statement

Copyright© Deere & Company

Service Electrical

Cleaning Or Replacing Battery

c CAUTION: Avoid injury! Battery gas can explode: · Keep sparks and flames away from batteries. Use a flashlight to check battery electrolyte level. · Never check battery charge by placing a metal object across the posts. Use a voltmeter or hydrometer. · Always remove grounded (-) battery clamp first and replace it last.

1. STOP engine.

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2. Disconnect black negative (-) cable (A) from battery first.

3. Pull back positive terminal cover (B) and disconnect red
positive (+) cable (C).

4. Clean battery with a damp cloth or rag. Keep dirt out of battery cells.

5. Remove corrosion from terminals and cable clamps with a wire brush.

6. If necessary, remove battery to thoroughly clean it:

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· Remove hold-down strap (D).

· Remove battery.

7. Clean battery, battery terminals, cable ends, battery box, and other parts with a solution of 1 part baking soda to 4 parts water. KEEP solution out of battery cells.

8. Rinse all parts with clean water and let dry.

NOTE: If you need a new battery, install a John Deere battery or a battery of equal specification. (See your John Deere distributor.)

9. Install battery and battery hold-down strap.

10. Connect red positive (+) cable to battery. Make sure connection is tight.

11. Apply petroleum jelly or silicone spray to terminal to prevent corrosion.

12. Push red positive cover over positive terminal.

13. Connect black negative (-) cable to battery. Make sure connection is tight.

14. Apply petroleum jelly or silicone spray to terminal to prevent corrosion.

Checking Battery Electrolyte Level

c CAUTION: Avoid injury! Sulfuric acid in battery electrolyte is poisonous. It is strong enough to burn skin, eat holes in clothing, and cause blindness if splashed into eyes. · Wear eye protection and avoid spilling or dripping electrolyte.

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1. Remove battery manifold caps (A).

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2. Electrolyte (B) should be 6 mm (1/4 in.) above plates (D).

3. Add distilled water if necessary.

4. Install manifold cap.

Charging The Battery

Follow instructions on the battery charger or in the charger operator's manual, or use the instructions below as a guide.

c CAUTION: Avoid injury! BE VERY CAREFUL: Battery fluid (electrolyte), is a solution of c water and sulfuric acid. It is very harmful to eyes, skin, or clothing. · Wear goggles or an eye shield when you work with a battery. · If the acid contacts your eyes, skin, or clothing, flush the area immediately with water. Get medical help, if necessary. A battery gives off gas which can explode. An exploding battery will spray sulfuric acid in all directions. · Keep cigarettes, sparks, and flames away from the battery. · Charge the battery in an area with good ventilation.

Before you charge a battery:

· Wait until the battery has warmed to room temperature. Do not charge a frozen battery.

· Check the electrolyte level of each cell. (See Checking Battery Electrolyte Level in this section.)

· Install the battery cap(s) on the battery.

Turn OFF and unplug the charger before you connect cables to the battery or disconnect cables from the battery.

If the battery becomes warm to touch during charging:

· Reduce the charging rate OR

· Stop charging the battery until it cools.

Keep battery fully charged.

c CAUTION: Avoid injury! DO NOT charge a frozen battery. Battery gases can explode. Keep cigarettes, sparks, and flames away from battery.

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1. Remove and clean battery. (See Cleaning Or Replacing Battery in this section.)

2. Check electrolyte level. (See Checking Battery Electrolyte Level in this section.)

3. Leave cell caps on battery while you charge it.

c CAUTION: Avoid injury! To avoid injury, before you connect or disconnect charger cables to battery, unplug charger cord.

4. Connect positive (+) charger cable to positive (+) battery terminal.

5. Connect negative (-) charger cable to negative (-) battery terminal.

6. Plug in charger cord.

7. Charge battery. See CHARGING RATES on the next page.

8. Unplug charger cord. Remove charger cables.

9. Install battery.

Charging Rates

See your battery charger or charger operator's manual for information on charging. Or read the information below to FULLY CHARGE your battery.

For a charger with a CURRENT ADJUSTMENT CONTROL:

· Adjust the control to 10 amps.

· Charge the battery for 6-8 hours.

For a charger with a switch for MAINTENANCE FREE, DEEP CYCLE, or NORMAL (CONVENTIONAL) setting:

· Use the MAINTENANCE FREE or DEEP CYCLE setting.

For a charger with SLOW CHARGE, FAST CHARGE, or BOOST CHARGE setting:

· DO NOT use the BOOST CHARGE setting.

· Use the SLOW CHARGE setting:

· - For a charger rated at less than 10 amps.

· - For 3-16 hours.

· Use the FAST CHARGE setting:

· - For a charger rated at 10 amps.

· - For 5-8 hours.

NOTE: NOTE: Your charger may have an AUTOMATIC STOP to prevent charging the battery:

· When the battery is fully charged OR

· When the battery is not in condition to take a charge.

Using Booster Battery

c CAUTION: Avoid injury! Battery gas is explosive: · DO NOT smoke while you charge battery. · Keep all flames and sparks away. · DO NOT charge frozen battery. · DO NOT connect booster battery negative () cable to starting vehicle negative () terminal.

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Connect positive (+) booster cable to booster battery positive (+) post (D).

Connect the other end of positive (+) booster cable to vehicle battery positive (+) post (A).

Connect negative (-) booster cable to booster battery negative (-) post (C).

Connect the other end of negative (-) booster cable to engine ground (B) away from battery.

Changing Fuses

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1. Raise seat.

2. Pull fuse (A) and (B) out of socket.

3. Check metal clip (C) in fuse window. Discard fuse if clip is broken.

NOTE: Make sure to replace with a fuse of proper amperage.

Push new fuse into proper socket.

Changing Indicator Bulb

NOTE: Bulb socket is removed from under panel before bulb is replaced. It may be necessary to remove front panel (A) for access to bulb sockets.

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1. Reach up under dash behind indicator to remove bulb socket.

2. Remove bulb socket by turning it counterclockwise 1/4 turn.

3. Pull bulb out of socket.

4. Push new bulb into socket.

5. Install socket.

Cleaning And Gapping Spark Plugs

c CAUTION: Avoid injury! To avoid injury, before you remove spark plugs: STOP engine. Wait until engine is cooled.

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1. Raise seat.

2. Disconnect spark plug wires (A) from spark plugs on both sides of engine block.

3. Remove spark plugs from engine.

4. Clean spark plugs carefully with a wire brush.

5. Inspect spark plugs for:

· Cracked porcelain.

· Pitted or damaged electrodes.

· Other wear or damage.

NOTE: In Canada, replace spark plugs with resistor-type plugs only.

6. Replace spark plugs as necessary.

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7. Check plug gap with a wire feeler gauge.

8. Gap must be 0.76 mm (0.030 in.).

9. To change gap, move outer electrode.

10. Install and tighten spark plugs to 20 Nm (15 lb-ft).

11. Connect spark plug wires.

12. Lower seat.