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Installing the Blades
1. Install the first blade so that it is horizontal, along with
all mounting hardware as shown in
Note: Tighten the bolt with your fingers.
Important: Position the curved ends of the blades
to point toward the machine housing. Be sure to
nest the raised areas on each blade driver with the
recesses in the head of its corresponding spindle,
and the pins on the other side of each blade driver
with the holes in its corresponding blade.
2. Steady each blade with a board and turn the blade bolt
clockwise with a torque wrench as shown in
torque each blade bolt to 82 N-m (60 ft-lb).
Figure 38
Important: A bolt torqued to 82 N-m (60 ft-lb) is
very tight. Put your weight behind the wrench and
tighten the bolt securely. This bolt is very difficult
to overtighten.
3. Rotate the installed blade 1/4 turn until it is vertical,
and install the other blade in the same manner as the
first (refer to step 1).
Note: The blades should be perpendicular, forming
an inverted "T" as shown in
Figure
37.
Figure
38;
g016537
Figure
39.
1
1. Blade (2)
4. Tighten the second blade; refer to step 2.
5. Rotate the blades by hand a full 360° turn to ensure
that they do not touch.
Note: If the blades touch each other, they are not
mounted correctly. Repeat steps
blades no longer touch each other.
WARNING
Incorrectly installing the blades could damage
the machine or cause an injury to the operator
or to bystanders.
Changing the
Blade-Brake-Clutch (BBC)
Belt
Service Interval: Every 250 hours
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Remove the 4 bolts that hold the belt cover to the
machine housing.
Note: Save the bolts for installing the belt cover to
the machine housing.
4. Remove the belt cover.
5. Remove any debris from under the belt cover.
6. Remove the BBC belt guard
Note: Save the mounting hardware for installing the
BBC belt guard later.
22
G016536
Figure 39
1
through
3
(Figure
40).
until the
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