Blade; Replacing The Blades - Jonsered LM 2253 CMDA 4X4 Manual De Usuario

Blade

WARNING! Always wear heavy-duty
!
gloves when servicing and maintaining
the blade. The blade is very sharp and
cuts can occur very easily.
Always stop the engine before doing any
work on the blade. This continues to
rotate even after the throttle has been
released. Ensure that the blade has
stopped completely and disconnect the
spark plug cap before you start to work
on it.
• Check the blade for cracks or any other damage. A
damaged blade must always be replaced.
• Always ensure the blade is well ground and balanced
correctly. To check blade balance, you will need a 5/8"
diameter steel bolt, pin, or a cone balancer. When
using a cone balancer, follow the instructions supplied
with balancer.
• Do not use a nail for balancing blade. The lobes of the center hole may appear to be centered, but are not.
• Slide blade on to an unthreaded portion of the steel
bolt or pin and hold the bolt or pin parallel with the
ground. If blade is balanced, it should remain in a
horizontal position. If either end of the blade moves
downward, sharpen the heavy end until the blade is
balanced.
IMPORTANT! The blades should be balanced after
sharpening. We do not recommend sharpening blade.
Sharpening and balancing the blade should be
conducted by an authorized service workshop.
Damaged blades should be replaced immediately.
NEVER use a mower with a damaged blade.
MAINTENANCE

Replacing the blades

1 Always disconnect the spark plug before performing
maintenance or service.
2 Always empty the fuel tank before you place the lawn
mower on its side. Empty the fuel tank by running the
machine until the tank is empty.
3 Turn lawn mower on its side. When the machine is
tilted, make sure the air filter always is placed in the
highest position.
4 Use a wood block between blade and mower housing
to prevent blade from turning when removing blade
bolt.
5 Remove the blade bolt by turning the bolt counter-
clockwise.
6 Remove the old blade. Make sure the blade adapter is
free of damage. Also check that the blade bolt is
undamaged and that the engine shaft is not bent.
IMPORTANT! Use only a replacement blade approved
by the manufacturer of your mower. Using a blade not
approved by the manufacturer of your mower is
hazardous, could damage your mower and void your
warranty.
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