Exmark 4500-450 manual Tracking Adjustment, Washing the Underside of the Mower

Maintenance

Adjustments Cleaning

Tracking Adjustment

If the machine turns right or left when handles are pushed forward together, adjust the tracking plate on the side opposite the direction of turn (see Figure 47). Loosen the hardware that holds the tracking plate. Move the plate back until the unit drives straight. Tighten the hardware to lock the tracking plate in place. Readjust handles if necessary.

Washing the Underside of the Mower

Service Interval: Before each use or daily

After each use, wash the underside of the mower to prevent grass buildup for improved mulch action and clipping dispersal.

1.Park the machine on a level surface and disengage the blade control switch.

2.Move the motion control levers outward to the neutral position, engage parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3.Attach the hose coupling to the end of the mower washout fitting, and turn the water on high (Figure 48).

Note: Spread petroleum jelly on the washout fitting O-ring to make the coupling slide on easier and protect the O-ring.

Figure 47

1.	Control arm shaft	3. Tracking plate
2.	Tracking plate nut

Figure 48

4. Lower the mower to the lowest height-of-cut.

5. Sit on the seat and start the engine. Engage the blade control switch and let the mower run for one to three minutes.

6. Disengage the blade control switch, stop the engine, and remove the ignition key. Wait for all moving parts to stop.

7. Turn the water off and remove the coupling from the washout fitting.

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