7.
Tighten the cable-clamp screw to lock the adjustment
in place.
8.
Install the belt cover with the 4 bolts that you removed
in step 3.
9.
Connect the wire to the spark plug.
10.
Check the operation of the blade-brake clutch; refer to
Checking the Blade-stop System Operation (page 12).
Changing the Blade-drive Belt
Change the blade-drive belt as needed.
1.
Stop the engine and wait for all moving parts to stop.
2.
Disconnect the wire from the spark plug.
3.
Remove the belt cover (Figure 7) by removing the 4
bolts that hold it to the machine housing.
Note:
Save the bolts for installing the belt cover to
the machine housing.
4.
Remove any debris from under the belt cover.
5.
Remove the BBC belt guard and the mounting
hardware.
Note:
Save the BBC belt guard and hardware for
installation later.
G019899
1
2
Figure 42
1.
BBC belt
2.
BBC belt guard
6.
Remove the BBC belt from the front left-hand pulley.
7.
Loosen the adjusting bolt (Figure 30).
8.
Remove the fixed idler pulley and the hardware (Figure
43).
Note:
Save the idler pulley and hardware for
installation later.
G019922
Figure 43
The BBC idler pulley is removed for clarity
1.
Hole in the housing
3.
Fixed-idler pulley
2.
Right-hand sprocket hole
4.
Left-hand sprocket hole
9.
Remove the blade-drive belt.
10.
Align the holes in the right-hand and left-hand
sprockets with the holes in the housing as shown in
Figure 43.
Note:
Hold the sprockets in place with a rod or a
screwdriver.
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 Servicing the Blade-drive System (page 19).
13.
Remove the rod or screwdriver from the sprockets.
14.
Ensure that the blades under the housing are properly
aligned; refer to Servicing the Cutting Blades (page 20).
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.
Cleaning under the Machine
Housing
For optimal cutting performance, keep the underside of the
machine housing clean. You may either wash or scape the
clippings away from under the machine housing.
24
