Checking The Tire Pressure; Servicing The Cutting Blades - Toro 74702 Operator's Manual

Figure 30
Top View

Checking the 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 after every
50 operating hours or monthly, whichever occurs first
(Fig. 31). Check the tires when they are cold to get the most
accurate pressure reading.
Rear Tires: 13 psi (90 kPa)
Front Tires (castor wheels): 35 psi (139 kPa)
Figure 31
1. Valve stem

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.
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.
m–5157
Replace a worn or damaged blade.
Before Inspecting or Servicing the Blades
Park the machine on a level surface, disengage the PTO,
and set the parking brake. Stop the engine, remove the key,
and disconnect the spark plug wire(s) from the spark
plug(s).
Inspecting the Blades
1. Inspect the cutting edges (Fig. 32). If the edges are not
sharp or have nicks, remove and sharpen the blades;
refer to Sharpening the Blades, page 29.
2. Inspect the blades, especially the curved area (Fig. 32).
If you notice any damage, wear, or a slot forming in this
area (item 3 in Fig. 32), immediately install a new
blade.
1
m–1872
1. Cutting edge
2. Curved area
Checking for Bent Blades
1. Disengage the PTO and move the control levers to the
neutral locked position and apply the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
28
Danger
2
1
3
Figure 32
3. Wear/slot forming
m–151