OMMT6354

Issue A9

2500 Professional Greensmower

Gas PIN (010001-)

Diesel PIN (010001-)

Introduction

Safety Signs

Controls

Operating Machine

Operating Cutting Units

Replacement Parts

Service Machine Safely

Service Interval Chart

Service Lubrication

Service Engine Gas Units

Service Engine Diesel Units

Service Hydraulics & Transmission

Service Cutting Units

Service Electrical

Cleaning and Replacing Battery

Checking Battery Electrolyte Level

Charging the Battery

Charging Rates

Using Booster Battery

Check Electrical Control Box

Checking and Replacing Fuse

Replacing Engine Indicator Light Bulb

Service Miscellaneous

Troubleshooting

Storing Machine

Assembly

Specifications

Warranty

John Deere Service Literature

John Deere Quality Statement

Copyright© Deere & Company

Service Electrical

Cleaning and Replacing Battery

c CAUTION: Avoid injury! Avoid personal 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.

1. Raise and secure operator seat in the raised position.

2. Remove service access panel (A) below operator seat platform.

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3. Loosen wing nuts (B) to remove battery hold-down (C).

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4. Remove negative (black) cable (D) from battery first.

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

6. If battery is very dirty, remove battery through access panel opening.

7. 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.

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

9. Install battery.

10. Check cell caps to be sure vent holes are open.

11. Connect positive (red) cable to battery first, then negative (black) cable.

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

13. Install battery hold-down. Tighten wing nuts.

14. Install service access panel.

15. Lower operator seat.

Checking Battery Electrolyte Level

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NOTE: Under normal operating conditions the battery should require no maintenance.

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 operator seat in the raised position.

2. Remove service access panel (A) below operator seat platform.

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3. Remove battery manifold caps (B).

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

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5. Add distilled water if necessary.

6. Install manifold caps.

7. Install service access panel.

8. Lower operator seat.

Charging the Battery

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

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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. · f 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 CHARGING 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.

KEEPING 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.

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.

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

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

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:

· 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: 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

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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.

Check Electrical Control Box

The electrical control box is a diagnostic tool to help the operator verify correct electrical functions of the greensmower. For the control box to control the greensmower as desired, each of the input switches, output solenoids and relays must be connected and functioning properly.

· Raise and secure operator seat in the raised position.

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· Locate electrical control box (A).

· The control box is equipped with a diagnostic light which indicates if the control box is functioning correctly. When the control box is functioning correctly, the diagnostic "HEARTBEAT" light (B) will be illuminated and blinking whenever the key switch is turned to the RUN position.

NOTE: DO NOT remove control box from position under operator seat platform if "HEARTBEAT" light fails to operate.

· If the "HEARTBEAT" light is not illuminated and blinking when the key switch is turned to the RUN position, this may indicate that the control box is without power or not functioning correctly.

Check:

· Check to see if battery is charged. Charge as needed. (See Charging the Battery in this section.)

· Battery connections (C). (See Cleaning and Replacing Battery in this section.)

· Blown 15 amp key switch fuse (D). (See Checking and Replacing Fuse in this section.)

· Electrical connections.

· Control box display lights (E) will light as each function switch is actuated. If a function is performed and no display light appears, diagnose the problem.

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· If further diagnostic assistance is needed, refer to the Technical Manual or consult your local John Deere dealer.

Checking and Replacing Fuse

1. Park greensmower on a hard, level surface.

2. Stop engine and engage park brake.

3. Raise and secure operator seat in the raised position.

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4. Locate fuse holder (A) under operator seat platform.

5. Fuse identification:

6. Open fuse holder.

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· Check fuse (B) visually for a broken filament.

7. Replace defective fuse.

· Pull out defective fuse.

· Push in new 15 amp fuse.

8. Close fuse holder.

9. Lower operator seat.

Replacing Engine Indicator Light Bulb

1. Park greensmower on a hard, level surface.

2. Stop engine and engage park brake.

3. Remove two screws (A) from left side of console control armrest.

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4. Raise and secure operator seat in the raised position.

5. Loosen and remove cap screws and flat washers from locations (B) in bottom of console control armrest.

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6. Carefully separate upper and lower console control armrest halves.

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7. Locate engine indicator light assembly (C).

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8. Replace defective bulb.

NOTE: It may be necessary to remove hex nut (D), lock washer (E) and retainer bracket (F) to access all engine indicator light bulb sockets.

· Turn light socket (G) counterclockwise to remove from assembly.

· Remove bulb (H) from socket.

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· Push new bulb into socket.

· Install socket and turn clockwise to secure in position.

9. Carefully assemble upper and lower console control armrest halves.

· Install cap screws and flat washers into bottom of console control armrest locations (B). Do Not tighten.

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· Install two screws (A) into left side of console control armrest.

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· Tighten all hardware.

10. Lower operator seat.