Craftsman 900.370511 - Manual (Page 13)

• Sharpening the blade twice during a mow­
ing season is usually sufficient under nor­
mal circumstances. Sand
causes the blade to dull fast. If your lawn
has sandy soil, more frequent sharpen-
ings are required.
• Replace bent or damaged blade
immediately.
To sharpen blade:
■ Make sure blade remains balanced.
• Sharpen blade at the original cutting
angle.
■ Sharpen cutting edges on both ends of
blade, removing equal amounts of mate­
rial from both ends.
• Secure blade in a vise as shown in
figure below.
• Wear safety glasses and be careful not
to cut yourself.
• Carefully file the cutting edges of the
blade with a fine tooth file or
sharpening stone.
• Check balance of blade. See
instructions for blade balancing.
• After blade is sharpened and balanced
replace blade on mower and tighten
securely.
TO BALANCE BLADE
• Check balance of blade by placing
center hole in blade over a nail or round
screwdriver shank, clamped horizontally
in a vise. If either end of the blade
rotates downward, file that end. Blade is
properly balanced when neither end
drops.
Sharpen this ■
. I _ - T
bofh ends
of blade
edge on
MAINTENANCE
CUSTOMER RESPONSIBILITIES TABLE
MAINTENANCE SCHEDULE /^ / S' /‘^/^/^/
FILL IN DATES /§ / S / ^ / s /
AS YOU COMPLETE /S /S / k / S § /
REGULAR SERVICE / ^ / ^ / i?'/^SER VICE DAI'ES
Check for Loose Fasteners X X
Clean Lawn Mower X X
Check/Sharpen/Replace Blade X
GENERAL RECOMMENDATIONS
• Always observe safety rules when
performing any maintenance.
• The warranty on this lawn mower does
not cover items that have been
subjected to operator abuse or
negligence. To receive full value from the
warranty, operator must maintain mower
as instructed in this manual.
Once a year check blade for wear.
Follow the maintenance schedule in this
manual.
Before each use check for loose
fasteners.
13