Extension Cords; Maintenance And Care - Nakayama EM4250 Manual

EN
have to cut the lawn in two passes, lowering the blade another 1/3 of the length for the second cut and perhaps cutting in
a different pattern than was used the first time. Overlapping the cut a little on each pass will also help to clean up any stray
clippings left on the lawn.
The mower should always be operated at full throttle to get the best cut and allow it to do the most effective job of mowing.
Clean underside of deck. Be certain to clean the underside of the cutting deck after each use to avoid a build-up of grass,
which would prevent proper mulching.
Mowing leaves. The mowing of leaves can also be beneficial to your lawn. When mowing leaves make sure they are dry and
are not laying too thick on the lawn. Do not wait for all the leaves to be off the trees before you mow.
WARNING: if you strike a foreign object, stop the motor. Pull out the mains plug, thoroughly inspect the mower for
any damage and repair the damage before restarting and operating the mower. Extensive vibration of the mower
during operation is an indication of damage. The unit should be promptly inspected and repaired.
9. Blade
The blade is made of pressed steel. It will be necessary to reshape it frequently (with a grind wheel).
Ensure that it is always balanced (an unbalanced blade will cause dangerous vibrations). To check for balance, insert a round
rod through the central hole and support the blade horizontally. A balance blade will remain horizontal. If the blade is not
balanced the heavy end will rotate downwards. Reshape the heavy end until the blade is currently balanced. To remove the
blade (1), unscrew the blade screw (2) and replace any parts, which are damaged.
When reassembling, make sure that the cutting edges face in the direction of the motor rotation. The blade screw (2) must be
torque to 20N.m.
WARNING: For service, replace the blade with QY blade: 7075-304501
Fig.7
WARNING: Disconnect the electric cord from the power supply.
WARNING: Protect hands by using heavy gloves or a rag to grasp the cutting blades when replace the blade.

10. Extension Cords

You should only use extension cords for outdoor use, PVC ordinary duty with a cross sectional area not less than 1.0mm²(not
lighter than H05VV-F 2x1.0mm2)
Before using, check the supply and extension cords for signs of damaged during use, disconnect the cord for signs of damage
or aging. If the cord becomes damaged during use, disconnect the cord from the supply immediately. DO NOT TOUCH THE
CORD BEFORE DISCONNECTING THE SUPPLY. Do not use the appliance if the cord is damaged or worn. Keep extension cord
away from cutting elements.
Warning: Always ensure that the ventilation openings are kept clear of debris.

11. Maintenance And Care

Warning: Before performing any Maintenance or cleaning work, Always pull out the mains plug!
Do not spray the unit with water. Ingress of water may destroy the Switch-plug combination unit and the electric motor. Clean
the unit with a cloth, hand brush, etc.
Expert inspection is required, do not make any adjustment by yourself, must contact to customer Service centre:
a) if the lawn mower strikes an object.
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