Exmark MPKA21 manual Lubricate the Gear Case Self-Propelled Units Only, Check Spark Plugs

Maintenance

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

2.Lubricate fittings with one to two pumps of NGLI grade #2 multi-purpose gun grease.

Refer to the following chart for fitting locations and lubrication schedule.

Lubrication Chart

Fitting	Initial	Number of	Service
Locations	Pumps	Places	Interval
1. Pivot	2	2	50 Hours
Arms
2. Gear	1	1	100 Hours
Case

Lubricate the Gear Case (Self-Propelled Units Only)

Service Interval: Yearly

1.Stop engine, wait for all moving parts to stop.

2.Remove the grass bag.

3.Install a grease gun onto the fitting through the belt cover opening

Figure 28

1. Grease fitting 2. Belt cover

4.Gently apply one to two pumps of #2 multi-purpose lithium-base grease.

5.Install the grass bag.

Check Spark Plugs

Service Interval: Every 100 hours

1.Stop the engine and wait for all moving parts to stop.

2.Disconnect the wire from the spark plug (Figure 9 and Figure 10).

3.Clean around the spark plug.

4.Remove the spark plug from the cylinder head.

Note: Replace a cracked, fouled, or dirty spark plug. Do Not clean the electrodes because grit entering the cylinder can damage the engine.

5.Set the gap on the plug to 0.030 inch (0.76 mm) (Figure 29).

	Figure 29
1. Side electrode	3. Air gap—0.030 inch
	(0.76 mm)

2.Center electrode insulator

6.Install the spark plug and the gasket seal.

7.Torque the plug to 17 ft-lb (23 N-m).

8.Connect the wire to the spark plug.

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