Exmark 4500-540 Rev. B Park Brake Lever, Off-Run Switch Manual Start Only, Fuel Shut-Off Valve

Models: 4500-540 Rev. B

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Operation

Park Brake Lever

Located on the left side of the unit above the hydraulic tank.

The brake lever engages the park 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.

When parking on a steep slope, the wheels must be chocked or blocked in addition to the brake being engaged. The unit must be tied down and brake engaged when transporting.

The park brake must be disengaged to move speed control out of neutral or engine will kill.

For manual start engines: The park brake must be disengaged before the PTO is engaged or the engine will kill.

“Off-Run” Switch (Manual Start Only)

Located on the console.

Turn key to the “Run” position to allow the engine to be started. Turn key to the “Off ” position to shut engine off.

Operator must have speed control lever in neutral and the PTO disengaged to start engine.

Ignition Switch (Electric Start Only)

Located on the control console.

The ignition switch is used to start and stop the engine. The ignition 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). Operator must have speed control lever in neutral, OPC levers depressed and PTO disengaged to start engine. When engine starts, release key.

Fuel Shut-Off Valve

Located in the fuel line midway between the tank and engine.

The fuel shut-off valve is used to shut off the flow of fuel when parking inside a building, during

transportation to and from the job sites, and when the machine will not be used for a few days.

Rotate valve 1/4 turn clockwise to shut fuel off. Rotate valve 1/4 turn counterclockwise to turn fuel on.

Drive Wheel Release Valves

Located on the left rear corner of the hydrostatic pumps.

Drive wheel release valves are used to release the hydro-static drive system to allow the machine to be moved by hand without the engine running.

With a 5/8 wrench, turn both valves one turn counterclockwise to release the drive system.

Turn clockwise to reset the drive system. Do Not overtighten.

Tracking Adjustment Knob

Located on the right-hand side of the rear of the fuel tank support.

The knob can be adjusted so that machine will “track” straight ahead with the drive levers released.

PTO Engagement

Located on the left side of the upper handle.

To engage the blades, push the lever forward, or away from the operator, until the linkage locks over-center. To disengage the blades, pull the lever to the rear, or towards the operator.

For manual start engines: The park brake must be disengaged before the PTO is engaged or the engine will kill.

Cold Start Kit (Manual Start Only)

Located below the hydro control shield.

The cold start kit is used to ease the starting of the unit in cold weather or when the unit has not been operated for a period of time. The cold start kit moves the idler pulley away from the pump belt, releasing the tension on the belt which allows the engine to turn over with less resistance (see Starting the Engine (Manual Start) section in Operation).

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Exmark 4500-540 Rev. B manual Park Brake Lever, Off-Run Switch Manual Start Only, Ignition Switch Electric Start Only