OMMT6743

Issue F9

Professional Utility Mower

2653A Diesel PIN (080001 - )

Introduction

Safety Signs

Controls

Operating

Operating Cutting Units

Replacement Parts

Service Machine Safely

Service Interval Chart

Service Lubrication

Service Engine

Service Transmission

Service Cutting Units

Service Electrical

Service Miscellaneous

Troubleshooting

Storing Machine

Assembly

Install Steering Wheel

Install Tires

Install Seat (Standard or Deluxe)

Remove Machine From Crating

Charge The Battery Safely

Charging The Battery

Install Front Roller and Lift Arm Assembly

Adjust Lift Arm Bumper Stops

Checking Tire Pressure

Specifications

Warranty

John Deere Service Literature

John Deere Quality Statement

Copyright© Deere & Company

Assembly

Install Steering Wheel

M99475

1. Install seal washer (A).

M99476

2. Install steering wheel (B).

M99477

3. Install nut (C) and tighten.

M99478

4. Install cap (D).

Install Tires

1. Remove tires from pallet.

2. Remove wires from motors and mower.

3. Put a jack under frame and support machine.

M60912

4. Remove bolts and nuts (A) holding shipping bracket (B) to pallet.

5. Remove lug bolts and shipping bracket. Retain hardware. Discard shipping bracket.

6. Raise machine and install front wheels. Tighten lug bolts to 40734 N·m (30025 lb-ft.).

7. Repeat on opposite side.

8. Lower machine and remove jack.

Install Seat (Standard or Deluxe)

M99466

1. Remove threaded stud protectors (A) and plastic from seat.

2. Apply MPG2 grease to the seat switch harness connectors.

3. Connect the seat switch harness (B) to the seat switch (C).

M97056

4. Place loose seat switch harness connector through the frame hole (D) before placing threaded studs into the frame holes.

5. Carefully install seat so that the four threaded studs fit into the four holes (E) of the frame.

6. Locate the main wiring harness connector (F) under the machine frame and apply MPG2 grease.

M95589

7. Connect the seat switch harness to the seat switch connector (G).

M99470

8. Install and tighten the four flange nuts to the threaded studs underneath the frame.

Remove Machine From Crating

1. Engage the free-wheeling valve. (See Using The Free-Wheeling Lever in the Operating section.)

2. Carefully push the machine off the crating pallet.

Charge The Battery Safely

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.

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

BEFORE YOU CHARGE THE 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.

Charging The Battery

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

NOTE: Make sure battery is fully charged at setup, the battery comes fully charged from the factory but some slight discharge may occur. Charge the battery to a minimum of 11.6 volts to ensure prolong battery life.

KEEP BATTERY FULLY CHARGED:

M61341

1. Remove and clean battery. (See Checking and Cleaning Battery this section).

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

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

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

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 the battery. (See Charging Rates in Service - Electrical Section).

8. Unplug charger cord. Remove charger cables.

9. Install the battery. (See Replacing Battery in Service - Electrical section).

Install Front Roller and Lift Arm Assembly

1. Remove cap plugs from ends of roller shaft.

M56206

2. Insert grease zerks (A) in both ends.

M56203

3. Install cutting unit yoke (B) using (C) 1/2 x 3 in. bolts, bushings (D), and nuts.

NOTE: There are two positions the yoke can be placed, float and fixed position (E), bolts and nuts provided. (See Cutting Shorter and Longer grass under Operating Cutting Units section).

M56202

4. Decide cutting conditions.

M87067

5. Install right and left front lift arms (F) onto mower using quick-lock pins (G).

6. Lubricate each respective lift arm fitting (H) with grease.

M87066

7. Install front hydraulic lift cylinder (I) as shown using drilled head pins (J), flanged bushings (K), and cotter pins (L).

M87068

8. Install cutting units (M) onto the respective lift arms using quick-lock pins (G).

NOTE: The yoke for the Left Front cutting unit is different and will have an "L" stamped on it to distinguish the offset to the motor side.

9. Lubricate individual cutting unit yoke fittings (N) with grease.

NOTE: The reel drive motors are installed on the inboard end of both front cutting units. For the Left Front position the cast end cap will have to be moved to the opposite end of the cutting unit before installing the drive motors.

M56208

10. Put coupler (N) on motor reel shaft and install motor.

11. Repeat steps 1 through 7 on the other cutting units.

NOTE: Use the chart below to determine which coupler (N) you have.

Machines with serial number 40001 and above will use couplers with 11 teeth.

Adjust Lift Arm Bumper Stops

NOTE: Make this adjustment to prevent unnecessary movement of lift arms and cutting units during transport.

1. Start engine.

M87063

2. Pull Lift/Mow lever (A) back to raise lift arms and attached cutting units to a maximum raised position.

3. Stop engine.

M99462

4. Locate adjustable lift arm bumper stop bolt (B) (one stop bolt for each cutting unit) mounted vertically under each side of the bumper.

5. Adjust bolts individually up or down to allow 3 mm (.12 in.) maximum lift arm movement at each stop (C).

Checking Tire Pressure

c CAUTION: Avoid injury! Explosive separation of a tire and rim parts can cause serious injury or death: · Do not attempt to mount a tire without the proper equipment and experience to perform the job. · Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure. Never weld or heat a wheel and tire assembly. The heat can cause an increase in air pressure resulting in a tire explosion. Welding can structurally weaken or deform the wheel. · When inflating tires, use a clip-on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly. · Check tires for low pressure, cuts, bubbles, damaged rims or missing lug bolts and nuts.

1. Check tires for damage.

M33418

2. Check tire pressure with an accurate gauge.

3. Adjust pressure, if necessary: