MAINTENANCE
~~
BLADE
SERVICING
Inspect blades for condition and proper installa
-
tion each time before operation. Replace any
blade that is bent, excessively nicked, worn or
has any other damage. Small.nicks can be
giound out when sharpening.
Blade Removal
For
right and left spindles, install spindle lock
wrench
(5)
through belt shield and into holes in
spindle pulley as shown. Remove bolt which has
RIGHT HAND THREADS. Remove cup washers,
washer and blade.
On the center spindle use blade wrench handle.
The
handle
will
rotate against gearbox stand
.when blade bolt is removed.
Shoulder washer
will
not normally come
off
unless
intentionally removed.
Blade Installation
1.
Install spindle lock wrench through belt shield
and into holes in spindle pulley
as
shown.
2.
Install shoulder washer (if removed) small end
,
.
to lead in clockwise rotation, as viewed from
up. Make sure blade cutting edge is positioned
top
of
mower.
3.
Excessive blade slipping can cause cup
washers to burn and lose their clamping force,
Inspect cup washers to determine
if
they are
burned
or
have lost their clamping force.
Replace as necessary.
Use a new Nylok blade bolt
when you replace the blade. Do not substi
-
tute any other bolt for the special blade bolt.
It
is self
-
locking, meeting the non
-
loosening
requirements for this application.
4.
Install
two
cup washers on bolt. Install washer
and blade on bolt. Remember bolt has right
hand threads; install bolt and blade assembly
into spindle. Torque bolt to
23.5
kg/m
(170
ft,/
Ibs). Remove spindle lock wrench from pulley
and shield.
1.
Blade
2.
Shoulder washer
3.
Left belt shield
4.
Spindle lock wrench
5.
Spindle lock wrench handle
6.
5/8" Standard flat washer
7.
Cup washers
8.
Blade bolt, special Nylok (right hand threads)
Blade
Assembly
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