Service Manual
BBC Under Deck Components Assembly (cont'd)
Figure
96
NOTE:
If
the crankshaft
nut
is tightened with these tabs
misaligned, the boss at the bottom of the keyway on
the self-propel pulley will break and the self-propel
pulley will be free to slide up and down on the
crankshaft. This can result
in
premature
belt
wear and
belt jumping.
7.
Press the bearings into the bearing block, using
an arbor press. Press only on the outer race,
otherwise bearing damage will result (use an
appropriately sized arbor or a
28
mm (1-1/8”)
socket to press the bearing into the block).
8.
Make sure that the anti-vibration pads are
in
place on the brake drum and assemble the brake
drum bearing block and BBC screws onto the
crankshaft as shown
in
Figure
97.
Secure with
the crankshaft nut.
Crankshaft Nut Torque:
78.8
N-m
(58
ft
Ibs)
Figure
97
BBC System
NOTE: Make sure that the BBC screws are properly
aligned before tightening the crankshaft
nut.
9.
Install the BBC cover with the four flanged head
self-tapping screws.
10. Install the BBC screen, the blade spacer, the
blade and the anti-scalp disk onto the BBC
screws and secure with the
two
flanged nylon
locknuts. Torque to
3.80
kg m
(330
in.
Ibs.).
Blade Locknut Torque
37
N-m
(330
in
Ibs)
11. Complete BBC service by checking BBC and
self-propel controls, making sure that
all
are
functioning normally. Adjust
as
necessary.
BBC CABLE
BBC Cable Removal
1.
Remove the
two
flanged head self-tapping
screws securing the screen panel to the housing
and remove the screen panel as shown
in
Figure
22,
page
24.
2.
The end of the BBC cable sheath has
two
protruding ears that catch the underside of the
cable bracket. Remove the cable by squeezing
the ears together,
then
pulling the cable out
vertically. See Figure
98.
3.
BBC
CABLE
LOCATION
I
Figure
98
Bend the throttle control locking tab back slightly
and tap the throttle control from the control panel
with
a rubber mallet. See Figure 51, page
XX.
Place a piece of duct tape over the heads of the'
handle and the BBC control box. This will prevent
control box components from falling out of the
handle during disassembly.