John Deere

OMM139734

Issue L8

ZTRAK Front Mower

F620 PIN (010001-)

Introduction

Safety

Controls

Operating

Replacement Parts

Service Machine Safely

Service Interval Chart

Service Engine

Service Transmission

Service Steering and Brakes

Service Electrical

Cleaning or Replacing Battery

Checking Battery Electrolyte Level

Charging the Battery

Charging Rates

Using Booster Battery

Replacing Fuses

Replacing Indicator Light Bulb

Service Miscellaneous

Troubleshooting

Storage

Assembly

Specifications

Warranty

John Deere Service Literature

John Deere Quality Statement

CopyrightŠ Deere & Company

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Service Electrical


Cleaning or Replacing Battery


MIF

c CAUTION: Avoid injury! Battery gas can explode, to avoid injury:

- 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.

IMPORTANT: Avoid damage! Be sure battery drain tube is free of obstruction.


1. Raise and secure cowling in the open position.

2. Disconnect rubber hold-down strap (A).


M93956

3. Remove plastic battery cover (B).

4. Remove negative (black) cable (C) from the battery first.


M93146

5. Remove positive (red) cable (D).

6. If battery is very dirty, remove battery.

7. Clean battery, battery terminals, cable ends, hold-down, and battery tray with a solution of 1 part baking soda to 4 parts water. Keep solution out of battery cells.

NOTE: If a new battery is required, install a replacement John Deere battery or an equivalent. (See your John Deere dealer.

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

9. Install battery. Make sure battery drain tube is routed properly through tie strap.

10. Connect positive (red) cable (D) to battery first, then the negative (black) cable (C).

11. Apply petroleum jelly on battery terminals to help prevent corrosion.

12. Install plastic battery cover.

13. Install rubber hold-down strap.

14. Lower cowling.

Checking Battery Electrolyte Level


MIF

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.

1. Raise and secure cowling in the open position.

2. Disconnect rubber hold-down strap (A).


M93956

3. Remove plastic battery cover (B).

4. Remove manifold cap (C).


M93146

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


5. Electrolyte (D) should be 6 mm (1/4 in.) above plates (E).


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6. Add distilled water if necessary.

7. Install manifold cap.

8. Install plastic battery cover.

9. Install rubber hold-down strap.

10. Lower cowling.

Charging the Battery

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


MIF


MIF

c CAUTION: Avoid injury! BE VERY CAREFUL: Battery fluid (electrolyte), is a solution of 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.

- DO NOT charge a frozen battery.

Before you charge a battery:

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

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

ˇ 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:

ˇ Reduce the charging rate OR

ˇ Stop charging the battery until it cools.

Keep battery fully charged.

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 cap 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.


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

6. Plug in charger cord.

7. Charge battery. (See Charging Rates in this section.)

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:

ˇ Adjust control to 10 amps.

ˇ Charge the battery for 6-8 hours.

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

ˇ Use the MAINTENANCE FREE or DEEP CYCLE setting.

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

ˇ DO NOT use the BOOST CHARGE setting.

ˇ Use the SLOW CHARGE setting:

ˇ For a charger rated at less than 10 amps.

ˇ For 3 to 16 hours.

ˇ Use the FAST CHARGE setting:

ˇ For a charger rated at 10 amps.

ˇ For 5 to 8 hours.

NOTE: Your charger may have an AUTOMATIC STOP to prevent charging the battery when the battery is fully charged OR is not in condition to take a charge.

Using Booster Battery


MIF

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.

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


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

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

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

Replacing Fuses

IMPORTANT: Avoid damage! Help prevent front mower circuit damage. Make sure replacement fuse is the correct 20 amp size.


1. Lift and secure cowling in the open position.


M93143, M93144

2. Fuse identification:

ˇ 20 amp fuse (A) - Starter

ˇ 20 amp fuse (B) - Accessories

3. Open fuse holder.

4. Replace defective fuse (C).


M93142

ˇ Pull out defective fuse.

ˇ Push in a new 20 amp fuse.

5. Close fuse holder.

6. Lower cowling.

Replacing Indicator Light Bulb

If an indicator light does not illuminate, bulb replacement may be necessary. If bulb replacement does not solve the problem or if indicator lights are not functional, see a John Deere dealer.

1. Indicator light identification:


M93937

ˇ Low oil indicator (A).

ˇ Battery indicator (B).

2. Lift and secure cowling in the open position.

NOTE: Make sure individual bulb sockets are installed in the correct position if removal is required.

3. Turn bulb socket (C) left to remove.


M93145, M93144

4. Pull defective bulb from socket.

5. Push new bulb into socket. Install socket.

6. Lower cowling.