Maintenance
WARNING
Incorrect installation of the blade or components used to retain the blade can be dangerous. Failure to use all original components and assembled as shown could allow a blade or blade component to be thrown out from under the deck resulting in serious personal injury or death.
Always install the original Exmark blades, blade bushings, and blade bolts as shown.
Check Safety Interlock System
Service Interval: Before each use or daily
CAUTION
If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury.
•Do not tamper with the interlock switches.
•Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.
Understanding the Safety Interlock System
The safety interlock system is designed to prevent the mower blades from rotating unless:
•The right side motion control lever is moved to the center, operating position.
•The blade control switch (PTO) is pulled on.
The safety interlock system is designed to stop the mower blades if you move or release the right side motion control lever into the PTO disengage position.
•The right side motion control lever is moved to the center, operating position, the parking brake is engaged, and the blade control switch (PTO) is pulled on.
Checking the Safety Interlock System
1.Start the engine.
2.Set the parking brake.
3.Move the motion control levers forward.
The engine should initiate shutdown after momentary pause.
4.Start the engine and release the parking brake.
5.Move the right side motion control lever to the center, operating position.
6.Continue holding the right side motion control lever in the center, operating position and pull up on the blade control switch (PTO) and release. The clutch should engage and the mower blades begin rotating.
7.Move or release the right side motion control lever into the neutral position. The blades should stop rotating and the engine should continue running.
8.Push the blade control switch down and move the right side motion control lever to the center, operating position.
9.Continue holding the right side motion control lever in the center, operating position and pull up on the blade control switch (PTO) and release. The clutch should engage and the mower blades begin rotating.
10.Push the blade control switch (PTO) down to the off position. The blades should stop rotating.
11.With the engine running, pull up the blade control switch (PTO) and release without holding right side motion control lever to the center, operating position. The blades should not rotate.
Check for Loose Hardware
Service Interval: Before each use or daily
1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.
2.Visually inspect machine for any loose hardware or any other possible problem. Tighten hardware or correct the problem before operating.
Service Air Cleaner
Service Interval: Every 250
Every 500 hours— Replace the secondary air cleaner element. (May
28