Exmark NAV20KC, NAV27KC manual

Run unit at 3/4 speed for at least 5 minutes to bring hydraulic oil up to operating temperature. Stop machine and wait for all moving parts to stop. Engage park brake. Tilt seat forward to gain access to the tracking knob. Rotate the knob towards the right to steer right and rotate towards the left to steer left. Adjust in 1/8-turn increments until the machine tracks straight. Check that the machine does not creep when in neutral with the park brakes disengaged.

IMPORTANT: Do not rotate the knob too far, as this may cause the machine to creep in neutral. Refer to section 5.2.9 for control linkage adjustment.

4.1.4PTO Engagement Lever: Located immediately left of the left console.

Lever must be moved up to the “ROTATE” position to engage the PTO and blower drives. Lever is moved down to the “STOP” position to stop the drives.

4.1.5Choke Control: Located on right hand console.

Choke is used to aid in starting a cold engine. Moving the choke lever forward will put the choke in the “ON” position and moving the choke lever to the rear will put the choke in the “OFF” position. DO NOT run a warm engine with choke in the “ON” position.

4.1.6Throttle Control: Located on right hand console.

Throttle is used to control engine speed. Moving throttle lever forward will increase engine speed and moving throttle lever to the rear will decrease engine speed.

4.1.7Brake Lever: Located on left side of unit, between the seat and console. The brake lever engages a parking brake on the drive wheels.

Pull the lever up and rearward to engage the brake.

Push the lever forward and down to disengage the brake.

The unit must be tied down and brake engaged when transporting.

4.1.8Ignition Switch: Located on the right hand console.

The ignition switch is used to start and stop the engine. The switch has three positions “OFF”, “ON” and “START”. Insert key into switch and rotate clockwise to the “ON” position. Rotate clockwise to the next position to engage the starter (key must be held against spring pressure in this position).

Brake must be engaged, speed control lever in neutral and PTO lever “OFF” to start engine. (It is not necessary for the operator to be in the seat to start the engine.)

4.1.9Hour Meter: Located on the right hand console. The hour meter is connected to a pressure switch installed in the engine block and it records the number of hours that the engine has run. If the ignition switch is left on without engine running, hour meter will not run.

NOTE: This switch is not a low oil sensor and will not alert the operator if the engine oil is low.

4.1.10Engine Oil Temperature Light and Buzzer: Located on the right console. The engine oil temperature light monitors the temperature of the engine oil. An illuminated engine oil temperature light and intermittent buzzing sound signals the engine is overheating.

4.1.11Fuel Shut-Off Valve: Located in fuel line by fuel tank and fuel filter (accessible by raising the hopper). The fuel shut-off valve is used to shut off the fuel when the machine will not be used for a few days, during transport to and from the job site, and when parked inside a building.

4.1.12Drive Wheel Release Valves: Located on the top left front corner of hydrostatic pumps. Drive wheel release valves are used to release the hydrostatic drive system to allow the machine to be pushed without the engine running. Tilt seat up to gain access to pumps.

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