Mower Maintenance; Drive System Maintenance; Checking The Tire Pressure; Servicing The Cutting Blades - Toro TimeCutter Z4200 Operator's Manual

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 vane stem (Figure 32). Check
the fires when they are cold to get the most accurate
pressure reading.
Rear Tires: 13 psi (90 kPa)
Front Tires (caster wheels): 35 psi (241 kPa)
Figure 32
1. Valve stem
Mower Maintenance
Servicing the Cutting Blades
Maintain sharp blades throughout the cutting season
because sharp blades cut cleanly vdthout 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 aW
wear or damage. File down aW nicks and sharpen the
blades as necessar> If a blade is damaged or worn,
replace it immediately vdth a genuine Toro replacement
blade. For convenient sharpening and replacement, you
may want to keep extra blades on hand.
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, remove
the ke5 and disconnect the spark plug vdre(s) from the
spark plug(s).
Inspecting the Blades
Service Interval: Before each use or dail}_Check the
cutting blades.
,
,
Inspect the cutting edges (Figure 33). If the edges
are not sharp or have nicks, remove and sharpen the
blades; refer to Sharpening the Blades.
Inspect the blades, especially the curved area
(Figure 33). If you notice aW damage, wear, or
a slot forming in this area (item 3 in Figure 33),
immediately install a new blade.
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