MAINTENANCE
CHECK DAILY
Operator Presence Interlock System - Start Operation
For the engine to crank, the parking brake must be on, the PTO (blades) off and traction levers in the neutral lock position. Sit in the seat and check, one by one, if the engine will crank with the parking brake off, the blades on, and either traction lever out of neutral lock.
Operator Presence Interlock System - Run Operation
The operator must be in the seat for the engine to run with the parking brake off, the traction levers moved out of the neutral lock position, or the blades on. To check:
1.Start the engine and run at 1/2 throttle with the operator on the machine but raised off the seat.
2.One by one: move the parking brake to the OFF position, traction levers out of the neutral lock position (check each independently), and turn the blades on. Each check should kill the engine after 1/2 second. (A 1/2 second delay is built into the system to prevent engine cutout when traversing rough terrain.)
Repair machine before using if the Operator Presence Interlock System does not operate correctly in start or run.
Hardware
Tighten any nuts and bolts found loose. Replace any broken or missing cotter pins. Repair any other prob- lems before operating.
Tire pressure
Tires should be kept inflated to 14 lbs/in2 (1.0 kg/cm2). Improper tire inflation can cause rapid tire wear and poor traction. Uneven inflation can cause uneven cutting. Overinflation of caster tires can cause casters to "wobble" on hard surfaces.
BATTERY
Battery acid is caustic and fumes are explosive and can cause serious injury or death.
Use insulated tools, wear protective glasses or goggles and protective clothing when working with batteries. Read and obey the battery manufacturer’s instructions.
Be certain the ignition switch is OFF and the key has been removed before servicing the battery.
1.Verify battery polarity before connecting or dis- connecting the battery cables.
2.When installing the battery, always assemble the RED, positive ( + ) battery cable first and the
BLACK ground, negative ( - ) cable last.
3.When removing the battery, always remove the
BLACK ground, negative ( - ) cable first and the red, positive ( + ) cable last.
4.Check the electrolyte level every 100 hours of operation or yearly, whichever comes first. Top off with distilled water if necessary.
NOTE: Sealed batteries cannot be checked or topped off.
5.Clean the cable ends and battery posts with steel wool. Use a solution of baking soda and water to clean the battery. Do not allow the solution to enter into the battery cells.
6.Tighten cables securely to battery terminals and apply a light coat of silicone dielectric grease to terminals and cable ends to prevent corrosion.
Keep terminal covers in place.
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