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2. Steady each blade with a board and turn the blade bolt
clockwise with a torque wrench as shown in Figure 36;
torque each blade bolt to 60 ft-lb (82 N-m).
Figure 36
Important: A bolt torqued to 60 ft-lb (82 N-m) 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.
1
Figure 37
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 1 through 3 until the
blades no longer touch each other.
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
4. Remove the belt cover.
5. Remove any debris from under the belt cover.
g016537
6. Remove the BBC belt guard (Figure 38).
G016536
1. BBC belt
7. Remove the BBC belt from the brake-drum pulley.
8. Move the tab forward (Figure 39).
22
WARNING
Incorrectly installing the blades could damage
the machine or cause an injury to the operator
or to bystanders.
machine housing.
Note: Save the bolts for installing the belt cover to
the machine housing.
Note: Save the mounting hardware for installing the
BBC belt guard later.
Figure 38
Note: The tab prevents the transmission from tipping
to the point where the transmission belt comes off.
1
2
G019899
2. BBC belt guard
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