Dolmar MS-4300.4R, Original Instruction, Page: 13 / 228

13
Be sure to use genuine DOLMAR 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. Cutter
blades with outside diameter of 305 mm or 12 inches can be used only for
those with 2-tooth blade.
Turn the straight shaft 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
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).
Rotation
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 (5) 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 counterclockwise.
●
Remove the hex wrench.
(5)
(4)
(3)
(2)
(1)
(5)
(4)
(5)
Loosen Tighten