HTC Z4220BF Lawn Mower User Manual


 
English-45
MAINTENANCE
Checking the Blades
In order to attain the best mowing effect, it is important
that the blades are well sharpened and not damaged.
WARNING!
Blades are sharp. Protect your
hands with gloves and/or wrap
blades with a heavy cloth when
handling.
Bent or cracked blades or blades with large nicks
should be replaced.
Damaged blades should be replaced when hitting
obstacles that result in a breakdown. Let the service
workshop decide whether the blade can be repaired/
ground or must be replaced.
Balance the blades after sharpening.
Check the blade mounts.
IMPORTANT INFORMATION
The sharpening of blades should be
carried out by an authorized service
workshop.
8011-604
Check the blades
8011-604
1. Blade
2. Center hole
3. Star
4. Cutter housing
5. Blade bolt, special
Blade attachment
1
2
3
5
4
Blade replacement
•
Remove blade bolt by turning counterclockwise.
• Install new or re-sharpened blade with stamped
“GRASS SIDE” facing towards ground/grass
(down) or “THIS SIDE UP” facing deck and cutter
housing.
• Install and tighten blade bolt securely.
• Torque blade bolt to 45-55 ft/lbs (60-75 Nm).
IMPORTANT INFORMATION
To ensure proper assembly, center hole
in blade must align with star on cutter
housing.