Exmark FMD604 manual Pre-Start, Operating Instructions

4.1.11Drive 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 counter-clockwise to release the drive system.

Turn clockwise to reset the drive system. Do Not over tighten.

4.1.12Tracking 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.

4.1.13Park 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,

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

4.2PRE-START

4.2.1Fill fuel tank. For best results use only clean fresh regular grade unleaded gasoline with an octane rating of 87 or higher. Regular grade leaded gasoline may also be used; however, combustion chamber and cylinder head will require more frequent service. See Engine Owner's Manual. Do not add oil to gasoline.

Do Not overfill fuel tank. Never fill the fuel tank so that the fuel level rises above a level that is 1/2” below the bottom of the filler neck to allow for fuel expansion and prevent fuel spillage.

4.2.2Refer to Maintenance and Adjustment Section 5 and perform all of the necessary inspection and maintenance steps.

4.2.3Make sure you understand the controls, their locations, their functions, and their safety requirements.

4.3 OPERATING INSTRUCTIONS

4.3.1Starting Engine: Open fuel valve.

Operator must have Operator Presence Control (OPC) levers depressed, the PTO disengaged and speed control lever in neutral.

On a cold engine, place the throttle midway between the “Slow” and “Fast” positions and place the choke in the “On” position. On a warm engine, place the throttle lever midway between “Slow” and “Fast” positions and leave the choke in the “Off” position.

Turn ignition switch to “Start” position. Release the switch as soon as the engine starts.

On a cold engine, gradually return choke to the “Off” position after engine starts and warms up.

IMPORTANT: Do not crank the engine continuously for more than ten (10) seconds at a time. If the engine does not start, allow a 60 second starter cool-down period between starting attempts. Failure to follow these guidelines can burn out the starter motor.

NOTE: It is helpful to have the left and right neutral lock latches locked in neutral when starting the engine, See Controls Section 4.1.3.

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