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Ma R {er aneeiRepairs
BLADESHARPENING AND BALANCING(All Models)
IMPORTANT
: Professional
sharpening
services
or your
local dealer are equipped
to
sharpen mower
blades safely.
We recommend
that the blade
be professionally
sharpened.
Replace
a cracked
or severely
worn blade with a new one.
A. Remove blade from mower as
described
in "Blade Maintenance."
Check for blade wear or damage.
B. Clamp the blade in a vise. Use
a metal file or grinder to sharpen
the blade while maintaining
origi-
nal cutting angles.
C. To retain blade balance, re-
move the same amount of material
from both ends of the blade.
D. To make sure that the blade is
properly
balanced,
place blade on
a rounded
pencil or pen (or other
pivot) under center hole. Hold
blade parallel
to ground.
See
Figure 5-18. If blade is unbal-
anced, the heavier
side will lean
downward.
1
E. With a file, carefully
remove
material
from heavier
side of
blade.
E Re-install
blade by following
the instructions
in "Blade
Maintenance."
Figure 5-18: Balance blade (all models).
CLEANINGUNDERDECKAND UNDERMOWER COVER(All Models)
Correct procedures
should be
followed
when clearing grass
build-up
to ensure proper func-
tioning of the wheel drive system
on self-propelled
models.
WARNING
•
Before performing
any
maintenance
procedures,
stop the engine, wait for all
moving parts to stop, and
allow the engine to cool.
Disconnect the spark plug
wire and move it away from
the spark plug.
Remove ig-
nition key on electric start
models.
• When working near the
blade, wear heavy leather
gloves to protect yourself
from the sharp edges on the
blade.
NOTE:
• Loss or slipping
of wheel
drive
can occur after washing
underside
or under
cover
of mower.
Let
parts
dry thoroughly
after
using
water
spray to clear grass
build-
up.
Cleaning Underside of Mower
Deck:
A. Check the mower regularly
for
grass build-up.
B. Cleaning
under mower deck
should be done after (rather than
before) operating
the mower.
C. Scrape off excess grass.
If
using a hose to remove grass
build-up,
let the mower dry thor-
oughly before operation.
IMPORTANT:
Loss or slipping
of the mower's
wheel drive can
occur if the rubber friction
disk
is wet.
° If tipping mower during a main-
tenance
procedure,
tip mower
rearward
rather than forward
or to
either side.
Cleaning Under Mower Cover:
A. Check underside
of mower
cover for grass build-up
at the be-
ginning
and in the middle
of each
mowing
season.
B. Remove
the front cover of the
mower by removing
the two
phillips head screws which secure
the cover.
Pull the cover up and
then forward.
C. Temporarily
install one of the
cover screws into the spring
retaining
bracket
(H, Figure 5-6).
D. Scrape out any grass build-up.
(If water is used to clean this area
of the mower, the mower should
be allowed
to dry thoroughly
be-
fore operation.)
IMPORTANT:
Loss or slipping
of the mower's
wheel drive can
occur if the rubber friction
disk
is wet.
E. Check that the three (3) drain
holes in the mower deck are un-
clogged.
F. Remove
the Phillips
screw
from the spring retaining
bracket
and reinstall the front deck cover
using the two screws.
39
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