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WHEN SHARPENING THE CUTTING BLADE
1. Make sure that the blade remains balanced.
2. Sharpen the cutting blade at the original cutting angle.
3. Sharpen the cutting edges on both ends of the blade, removing
an equal amount of material from each end.
SHARPENING BLADE IN A VISE
1. Remove the blade from the mower (please see section
"REPLACING THE CUTTING BLADE" in this manual).
2. Secure the blade in a vise (Fig. 41).
3. Wear proper eye protection and gloves and be careful not to
cut yourself.
4. Carefully file the cutting edges of the blade with a fine tooth
file or sharpening stone, maintaining the original cutting edge
angle.
5. To check the blade balance: clamp a nail or a screw driver with
a round shank in the horizontal position. Position the blade so
that the nail or round shank of the screwdriver supports the
blade through its center hole. Balance the blade horizontally. If
either end of the blade rotates downward, remove some metal
from the heavy (or lower) end until the blade is balanced. It is
balanced when neither end drops (Fig. 42).
6. Replace the blade and mount it onto the mower securely
(please see section "REPLACING THE CUTTING BLADE" in
this manual).
WARNING: An unbalanced blade will cause excessive vibration
when rotating at high speeds. It may cause damage to the mower
and could break, causing personal injury.
CHECKING THE TIRE PRESSURE
Check the air pressure in all tires before use. Improper air pressure will affect handling, steering response, traction, tire
life, level cutting, and operator comfort. Be sure tires are inflated to the pressure shown below.
It is important for level mowing that all tires have the correct amount of air pressure. If the mower is not tracking
straight, please check the air pressure of the wheels first.
NOTICE: Tire pressure should only be measured or adjusted when tires are cold.
Recommended Pressure
WARNING: Check the tire pressure carefully while inflating. Too much air in the tire could cause the tire to burst,
causing serious personal injury.
41
42
Front Wheel
32 PSI (222.1 kPa)
56-VOLT LITHIUM-ION ELECTRIC ZERO TURN MOWER — ZT4200L/ZT4200L-FC
Rear Wheel
7 PSI (48.3 kPa)
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