Check The Blade Brake Clutch - Exmark COMMERCIAL 30 Operator's Manual

Maintenance
• 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 22. The sail
of the blade must point toward the top
of the lawn mower housing for proper
installation.
Figure 22
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.
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3. Blade driver
4. Blade-horizontal position
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 23.
1. Blades form sideways "T"
E. Rotate the blades by hand a full 360 degree
turn to ensure they Do Not touch.
WARNING
Incorrect installation of the blade or
components used to retain the blade
can be dangerous. Failure to use all
original components and assembled
as shown could allow a blade or blade
component to be thrown out from
under the deck resulting in serious
personal injury or death.
Always install the original Exmark
blades, blade drivers, and blade bolts
as shown.
F. If they touch, the blades are not mounted
correctly. Repeat steps A through E. If the
blades still touch after repeating the steps,
contact an Authorized Service Dealer.
6. Return the lawn mower to its upright position.
7. Connect the wire to the spark plug.
Check the Blade Brake
Clutch
Service Interval: Before each use or daily
Refer to Checking the Blade Brake Clutch in
Operation.
24
Figure 23
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