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Figure 36
1. BBC belt
6.
Remove the BBC belt from the front, left pulley.
7.
Loosen the adjusting bolt
8.
Remove the fixed idler pulley and the hardware
(Figure
37).
Note:
Save the idler pulley and hardware for
installation later.
Figure 37
The BBC idler pulley is removed for clarity
1. Hole in the housing
2. Right sprocket hole
9.
Remove the blade-drive belt.
10.
Align the holes in the right and left sprockets with
the holes in the housing as shown in
Note:
Hold the sprockets in place with a rod
or a screwdriver.
g208922
2. BBC belt guard
(Figure
28).
g208924
3. Fixed-idler pulley
4. Left sprocket hole
Figure
37.
11.
When you have locked the sprockets in place,
install the blade-drive belt and the fixed idler
pulley.
Note:
Ensure that the teeth are engaged in the
sprockets.
12.
Tighten the belt tension to the recommended
settings; refer to
System (page
13.
Remove the rod or screwdriver from the
sprockets.
14.
Ensure that the blades under the housing are
properly aligned; refer to
(page
26).
15.
Install the BBC belt and the BBC belt guard and
hardware.
16.
Install the belt cover using the 4 bolts that you
removed in step 3.
17.
Connect the wire to the spark plug.
18.
Check the operation of the control bar and the
blade-brake clutch.
Changing the
Blade-Brake-Clutch (BBC)
Belt
Service Interval: Every 250 hours
1.
Shut off 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 transmission belt; refer to
the Transmission Belt (page
7.
Remove the BBC belt guard
Note:
Save the mounting hardware for installing
the BBC belt guard later.
29
Servicing the Blade-Drive
25).
Inspecting the Blades
31).
(Figure
38).
Changing
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