12
Be sure to use genuine MAKITA metal blades or nylon
cutting head.
The metal blade must be well polished, free of cracks or breakage. If the
–
metal blade hits against a stone during operation, stop the engine and check
the blade immediately.
Polish or replace the metal blade every three hours of operation.
–
If the nylon cutting head hits against a 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 300 mm (12”)
or less. Never use any blades exceeding 300 mm (12”) in outside
diameter.
Turn the machine upside down, and you can replace the metal blade or
nylon
cutting head
easily.
Insert the hex wrench through the hole in the gear case and rotate the
–
receiver 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).
(4)
(3)
(2)
(1)
(4)
(3
)
(2
)
(1
)
Rotation
Hex wrench
MOUNTING OF METAL BLADE OR NYLON CUTTING HEAD
Mounting of metal blade with the hex wrench still in place
Mount the metal blade onto the shaft so that the guide of the receiver 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: 20 - 30 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
receiver washer (4).
Insert the hex wrench through the hole in the gear case and rotate the
–
receiver 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.
–
Hex wrench
Loosen
Tighten
Hex wrench
