Installing The Handle - Makita BBC231U Instruction Manual

Installing the handle

For model BBC231U (Fig. 15)
Loosen knob.
Place handle between handle clamp and handle holder.
Adjust the handle to an angle that provides a comfortable
working position and then secure by firmly hand-
tightening knob.
For model BBC300L (Fig. 16)
Fit the barrier and grip onto the shaft pipe with four
screws. Make sure that the spacer on the shaft pipe is
located between the grip/barrier assembly and the
hanger.
Position the barrier on the left side of the tool. Then
tighten four screws so that the grip/barrier assembly
cannot move or rotate on the shaft pipe.
WARNING:
• Do not remove or shrink the spacer. The spacer
keeps a certain distance between both hands. Setting
the grip/barrier assembly close to the other grip beyond
the length of the spacer may cause loss of control and
serious personal injury.
Installing the guard (Fig. 17 & 18)
WARNING:
• Never use the tool without the guard illustrated in
place. Failure to do so can cause serious personal
injury.
In use of the metal blade (Fig. 19)
Fix the guard to the clamp with two bolts as shown.
Tighten the right and left bolts evenly.
In use of the nylon cutting head
CAUTION:
• While installing the guard extension be careful not
to contact the sharp nylon cord cutter provided on
the guard extension. Contact with the cutter could
result in personal injury.
Fix the guard to the clamp with two bolts as shown.
Tighten the right and left bolts evenly. (Fig. 20)
Mount the guard extension by placing it on to the
mounting track provided on the lower edge of the guard
and sliding it into position until the guard extension clicks
and locks into place. The extension guard is designed so
that it will only mount onto the guard in one direction.
NOTE:
• Remove tape adhered to cutter, which cuts nylon cord,
on guard extension at the first use. (Fig. 21)
To remove the guard extension, use a flat-blade
screwdriver and place it into the small notch provided on
the locking nub. To unlock the guard extension press
down on the locking nub while sliding the lower guard
extension in the direction indicated in the figure. Once the
guard extension starts to slide it is unlocked and can be
removed by continuing to slide it off of the guard.
Installing the cutter blade
WARNING:
• The outside diameter of the cutter blade must be
230 mm. Never use any blade exceeding 230 mm in
outside diameter.
CAUTION:
• The cutter blade must be well polished, free of cracks
or breakage. Polish or replace the cutter blade every
three hours of operation.
• Always wear gloves when handling the cutter blade.
• Always attach the blade cover when the tool is not in
use or is being transported.
• The cutter blade-fastening nut (with spring washer) is a
consumable part. If there appears any wear or
deformation on the spring washer, replace the nut. Ask
your local authorized service center to order it.
NOTICE:
• Be sure to use genuine Makita cutter blade.
Turn the tool upside down so that you can replace the
cutter blade easily. (Fig. 22)
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. (Fig. 23)
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. (Fig. 24)
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. (Fig. 25)
Insert the hex wrench through the hole on the protector
cover and the gear case and rotate the receive washer
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 serious personal
injury.
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