Service Electrical

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.

MIF

M77044

1. Lift rear hood.

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2. Loosen nuts (A) to remove hold-down clamp.

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3. Remove negative (black) cable (B) from battery first.

4. Remove positive (red) cable (C).

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5. Clean battery with brush or cloth. Keep dirt out of battery cells.

6. Remove corrosion from battery terminals and cable ends with a wire brush.

7. If battery is very dirty, remove battery.

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

9. Rinse all parts with clean water. Let dry.

10. Install battery.

11. Check cell cap to be sure vent holes are open.

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12. Connect positive (red) cable (C) to battery first, then negative (black) cable (B).

13. Apply petroleum jelly on battery terminals.

NOTE: Do not overtighten nuts. It may crack plastic.

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14. Install battery hold-down. Tighten nuts (A).

15. Lower rear hood.

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.

· Flush eyes with water for 15-30 minutes if acid is splashed into eyes.

· If acid is swallowed, get medical attention immediately.

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1. Remove battery manifold caps (A).


IMPORTANT: Avoid damage! DO NOT fill cells to the bottom of the filler neck (B). Electrolyte can overflow when a battery is charged and cause damage.

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

3. Add distilled water if necessary.

4. Install manifold caps.

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.

Charging The Battery (Continued)

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.

M61341

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.

· Specific gravity should be 1.250

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

· Use the MAINTENANCE FREE or DEEP CYCLE setting.

Charging Rates (Continued)

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.

· - Specific gravity should be 1.250.

· Use the FAST CHARGE setting:

· - For a charger rated at 10 amps.

· - For 5-8 hours.

· - Specific gravity should be 1.250.

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.

M71044

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.

Replacing Fuses

Two 20 Amp fuses (A) are used with two spares provided between the two active fuses.

M72512

Testing Neutral Start System

c CAUTION: Avoid injury! Help prevent possible injury from operating unsafe machine. If machine does not pass test, DO NOT operate (See your John Deere Distributor.)

1. Sit on the seat.

2. Engage the parking brake lock.

3. Move transmission shift pedals to forward or reverse position.

4. Turn key to the START position. Engine must not crank.

Replacing Headlights (Optional)

M77056

1. Turn Headlight switch to OFF position.

2. Remove screws (A).

3. Pull lens assembly from housing.

4. Disconnect wires from bulb.

5. Replace front light.

6. Connect wires to bulb.

7. Install lens assembly in housing.

8. Install screws.

Checking Spark Plug

c CAUTION: Avoid injury! To help prevent bodily injury from burns, stop engine and allow to cool before removing spark plug.

M77053

1. Raise rear hood.

2. Disconnect spark plug wire (A).

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3. Remove spark plug.

4. Clean plug carefully with a wire brush.

5. Inspect plug for cracked porcelain, pitted or damaged electrodes and other wear or damage.

NOTE: In Canada, replace with resister spark plugs only.

6. Replace spark plug if necessary.

7. Check plug gap with a wire feeler gauge.

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8. Gap must be between 64 mm (0.025-in).

9. To change gap, move the outer electrode.

10. Install and tighten spark plug to 20 N·m (15 lb-ft.).

11. Connect spark plug wire and lower rear hood.

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