Makita EM3400L Instructions D'emploi D'origine page 11

MOUNTING OF CUTTING TOOL
Be sure to use genuine MAKITA metal blades or nylon cutting head.
– The metal blade must be well cleaned, free of cracks or breakage. If the metal blade hits against a stone during operation, stop the engine
and check the blade immediately.
– Clean or replace the metal blade every three hours of operation.
– If the nylon cutting head hits against a hard object such as stone during operation, stop the engine and check the nylon cutting head
immediately.
CAUTION: The appropriate protector must always be installed, for your own safety and in order to comply with accident-prevention regulations.
Operation of the equipment without the guard being in place is not permitted.
The outside diameter of the cutter blade must be 255 mm (10") or less. Never use any blades exceeding 255 mm (10") in outside
diameter.
CAUTION: Make sure that the cutting tool is securely attached before operation.
Turn the machine upside down, and you can replace the metal blade or nylon
cutting head easily.
– Insert the hex wrench (5) through the hole in the gear case and rotate the
receive washer (4) until it is locked with the hex wrench.
– Loosen the nut (1) (left-hand thread) with the socket wrench and remove the
nut (1), cup (2), and clamp washer (3).
Mounting of metal blade with the hex wrench (5) still in
place
– Mount the metal blade onto the shaft so that the guide of the receive washer
(4) fits in the arbor hole in the metal blade. Install the clamp washer (3), cup
(2), and secure the metal blade with the nut (1).
[Tightening torque: 13 - 23 N-m]
NOTE: Always wear gloves when handling the metal blade.
NOTE: The metal blade-fastening nut (with spring washer) is a consumable
part. If there appears any wear or deformation on the spring washer,
replace the nut.
Mounting of nylon cutting head
– The clamp washer (3), cup (2), and nut (1) are not necessary for mounting
the nylon cutting head. The nylon cutting head should go on top of the receive
washer (4).
– Insert the hex wrench (5) through the hole in the gear case and rotate the
receive washer (4) until it is locked with the hex wrench.
– Then screw the nylon cutting head onto the shaft by turning it counter-
clockwise.
– Remove the hex wrench (5).
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(2)
(4)
(5)
(5)
(4)
(5)
Rotation
(1)
(3)