Exmark 4500-370 manual Maintenance, Check Mower Blades

Maintenance

Maintenance

Note: Determine the left and right sides of the machine from the normal operating position.

WARNING

While maintenance or adjustments are being made, someone could start the engine. Accidental starting of the engine could seriously injure you or other bystanders.

Remove the key from the ignition switch, engage parking brake, and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).

Recommended Maintenance Schedule(s)

Maintenance Service	Maintenance Procedure
Interval
After the first 50 hours	•	Change oil in all three gearbox housings. Add oil as needed until level with oil drain plug.
	•	Check the mower blades.
	•	Check for loose hardware.
Before each use or daily	•	Grease the front caster wheel hub.
	• Clean the grass and debris build-up from the cutting deck.
	• Clean the grass build-up from under the deck.
Every 40 hours	• Check the condition of the belts.
	• Grease the drive shaft.
	• Change oil in all three gearbox housings. Add oil as needed until level with oil drain plug.
Every 100 hours		thereafter
	• Grease the deck flip-up.
	• Grease the pivot arm tubes.
Yearly	• Grease the front caster pivots.
	• Lubricate the caster wheel hubs.

Periodic Maintenance

Check Mower Blades

Service Interval: Before each use or daily

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Lift deck and secure in raised position as stated in section Raising the Mower Deck to the Service Position.

3.Inspect blades and sharpen or replace as required.

4.To remove blade, use a block of wood or locking pliers to hold blade in place and remove the 1/2-20 x 2 1/4 inch blade bolt that secures the blade and blade driver.

5.Re-install the blade driver (with new blades) by using a block of wood or locking pliers to hold the blade in place and torque the blade bolts to 85-110 ft-lb (115-149 N-m).

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