Dolmar MS290.4U Original Instruction Manual page 12

Compatible blades
Metal blade (2-tooth)
Metal blade (3-tooth)
Metal blade (4-tooth)
Metal blade (8-tooth)
1. Install the receive washer onto the shaft.
2.
Insert the hex wrench through the hole in the gear
case to lock the shaft. Rotate the shaft until the hex
wrench is fully inserted.
3. Mount the metal blade onto the receive washer.
4. Install the clamp washer and cup, and then secure
the metal blade by turning the nut counterclockwise.
Tightening torque: 16 - 23 N•m
5.
Remove the hex wrench.
1
2
3
4
5
► 1 . Nut 2. Cup 3. Clamp washer 4. Metal blade
5. Receive washer 6. Shaft 7. Hex wrench
1
► 1 . Box wrench 2. Hex wrench
Be sure that the arrows on the blade and protector are
pointing in the same direction.
To remove the metal blade, follow the installation proce-
dures in reverse.
NOTE: The resin part of the blade fastening nut
wears out over time. Replace the nut if there appears
to be any wear or deformation.
Installing the nylon cutting head
CAUTION:
6
a stone during operation, stop the engine and
check the nylon cutting head immediately.
There are two types of nylon cutting head; the bump &
feed type and the manual feed type.
Bump and feed type
1. Install the receive washer onto the shaft.
2. Insert the hex wrench through the hole in the gear
case.
7
3. Screw the nylon cutting head onto the shaft by
turning it counterclockwise.
12 ENGLISH
If the nylon cutting head hits
2