Drive System
Maintenance
Checking the Tire Pressure
Service Interval:
Every 25 hours—Check tire pressure.
Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem (Figure 39). Check
the tires when they are cold to get the most accurate
pressure reading.
Tire Pressures
Model
Rear Tire
Front Tire (caster
wheels)
74381
13 psi (90 kPa)
50 psi (344 kPa)
Figure 39
1.
Valve stem
Mower Maintenance
Servicing the Cutting Blades
Maintain sharp blades throughout the cutting season
because sharp blades cut cleanly without tearing or
shredding the grass blades. Tearing and shredding turns
grass brown at the edges, which slows growth and
increases the chance of disease.
Check the cutter blades daily for sharpness, and for any
wear or damage. File down any nicks and sharpen the
blades as necessary. If a blade is damaged or worn,
replace it immediately with a genuine Toro replacement
blade. For convenient sharpening and replacement, you
may want to keep extra blades on hand.
WARNING
A worn or damaged blade can break, and a piece
of the blade could be thrown into the operator’s
or bystander’s area, resulting in serious personal
injury or death.
•
Inspect the blade periodically for wear or
damage.
•
Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
Park the machine on a level surface, disengage the blade
control switch, and move the motion control levers
outward to the park position. Stop the engine and
remove the key.
Inspecting the Blades
Service Interval:
Before each use or daily—Check the
cutting blades.
1. Inspect the cutting edges (Figure 40). If the edges
are not sharp or have nicks, remove and sharpen the
blades; refer to Sharpening the Blades.
2. Inspect the blades, especially the curved area
(Figure 40). If you notice any damage, wear, or
a slot forming in this area (item 3 in Figure 40),
immediately install a new blade.
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