Craftsman 12AVP2R3391 Manual Del Operador página 23

WARNING
An unbalanced blade will cause excessive vibration
when rotating at high speeds. It may cause damage
to engine and blade could break causing personal
injury.
7. Lubricate the engine crankshaft and the inner surface
of the blade adapter with light oil (Figure 36 inset).
a. Slide the blade adapter (d) onto the engine
crankshaft.
b. Place the blade on the adapter such that the side
of the blade marked "Grass Side" (or with part
number) faces the ground when the mower is in the
operating position.
c. Make sure that the blade is aligned and seated on
the blade adapter flanges.
8. Place blade bell support (b) on the blade (c). Align
notches on the blade bell support with small holes in
blade.
9. Replace hex bolt (a) and tighten hex bolt to torque:
Min. 37.5 ft-lbs (50.8 N-m), Max. 50.0 ft-lbs (67.8 N-m).
NOTE: To ensure safe operation of your mower,
periodically check the blade bolt for correct torque.
Figure 36
SERVICE AND MAINTENANCE
d
c
b
a
Belt Care
A damaged or worn belt may prevent the mower from
self-propelling. Periodically inspect the belt and pulley
system for damage or wear. If necessary contact an
authorized Service Center to have belt replaced.
NOTE: Several components must be removed in order to
change the mower's drive belt. See an authorized Service
Center to have belt replaced.
Drive Control Adjustment
SINGLE LEVER AND DUAL LEVER DRIVE CONTROLS
(IF EQUIPPED)
If equipped, there is an adjustment wheel located in the
drive control handle housing that is used to tighten or
loosen the drive belt. You will need to adjust the drive
control if the mower does not propel itself with the drive
control engaged or if the mower's wheels hesitate with
the drive control engaged. If either of these conditions
occur, rotate adjustment wheel clockwise to tighten cable
or counterclockwise to loosen the cable. See Figure 37 for
location on Single Lever Drive Control and Figure 38 for
Dual Lever Drive Control.
Loosen
Tighten
23
Tighten
Loosen
Figure 37
Figure 38