Exmark 30" Operator's Manual page 22

Maintenance
DANGER
A worn or damaged blade can break. 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.
• Removing Mower Blades:
A. To remove the blade, use a block of wood
to hold the blade steady. Make sure to
grasp the end of the blade using a rag or
thickly padded glove.
B. Remove the blade bolt, blade driver, and
blade.
C. Inspect blades and sharpen or replace as
required.
D. Inspect the pins on the blade driver for
wear and damage or replace as required.
• Installing Mower Blades:
A. Install the blade driver by inserting the
raised area into the recess on the cutter
housing.
B. Make sure to grasp the end of the blade
using a rag or a thickly padded glove.
Align the two holes on the blade with
the two holes on the blade driver and
install a sharp, balanced Exmark blade and
blade bolt as shown in Figure 19. The sail
of the blade must point toward the top
of the lawn mower housing for proper
installation.
1. Blade bolt
2. Blade-vertical position
C. Torque the blade bolt to 60 ft-lb (82 N-m).
D. Make sure the installed blade is vertical
before installing the second blade.
The second blade must be installed
perpendicular to the first using steps A
through C. The two blades will form a
sideways "T" as shown in Figure 20.
1
1. Blades form sideways "T"
E. Rotate the blades by hand a full 360 degree
turn to ensure they Do Not touch.
22
Figure 19
3. Blade driver
4. Blade-horizontal position
G016536
Figure 20