Makita BBC231U Instruction Manual page 13

To dismount the cutter blade, insert the hex wrench
through the hole on the protector cover and gear case.
Rotate the receive washer until it is locked with the hex
wrench. Loosen the hex nut (left-hand thread) with the
socket wrench and remove the nut, cup, clamp washer
and hex wrench.
1
010757
Mount the cutter blade onto the shaft so that the guide of
the receive washer fits in the arbor hole in the cutter
blade. Install the clamp washer, cup, and secure the
cutter blade with the hex nut with 13 to 23 Nm of
tightening torque during holding the receive washer with
hex wrench.
010758
Make sure that the blade is the left way up.
Installing nylon cutting head
CAUTION:
Only use the nylon cutting head with the guard
•
and guard extension in place. Failure to do so
can cause serious personal injury.
NOTICE:
Be sure to use genuine Makita nylon cutting head.
•
Turn the tool upside down so that you can replace the
nylon cutting head easily.
3
1
2
010769
Insert the hex wrench through the hole on the protector
cover and the gear case and rotate the receive washer
1. Hex wrench
1. Threaded
spindle
2. Hex wrench
3. Receive washer
13
until it is locked with the hex wrench. Mount the nylon
cutting head onto the threaded spindle directly and
tighten it by turning it counterclockwise. Remove the hex
wrench.
To remove the nylon cutting head, turn the nylon cutting
head clockwise while holding the receive washer with the
hex wrench.
CAUTION:
If during operation the nylon cutting head
•
accidentally impacts a rock or hard object the
trimmer should be stopped and inspected for
any damage. If the nylon cutting head is
damaged it should be replaced immediately.
Use of a damaged nylon cutting head could result
in serous personal injury.
OPERATION
Correct handling of tool (BBC231U,BC231UD)
Correct posture
WARNING:
Always position the tool on your right-hand
•
side so that the shaft of the left handle is
always in front of your body. Correct positioning
of the tool allows for maximum control and will
reduce the risk of serious personal injury caused
by kickback.
010753
As shown in the figure fit the shoulder harness and hang
the tool firmly on your right side so that the shaft of the
left handle is always ahead of you.