Operation; Maintenance - Makita DUH551 Instruction Manual

OPERATION

CAUTION:
• Be careful not to accidentally contact a metal
fence or other hard objects while trimming. The
blade will break and may cause serious injury.
• Overreaching with a hedge trimmer, particularly
from a ladder, is extremely dangerous. Do not
work from anything wobbly or infirm.
NOTICE:
Do not attempt to cut branches thicker
than 10 mm in diameter with the tool. Cut branches
to 10 cm lower than the cutting height using branch
cutters before using the tool.
► Fig.7: (1) Cutting height (2) 10 cm
CAUTION:
• Do not cut off dead trees or similar hard objects.
Failure to do so may damage the tool.
► Fig.8
Hold the trimmer with both hands and pull the switch
trigger A or B and then move it in front of your body.
► Fig.9: 1. Trimming direction 2. Hedge surface to be
trimmed 3. Tilt the blades.
As a basic operation, tilt the blades towards the trim-
ming direction and move it calmly and slowly at the
speed rate of 3 - 4 seconds per meter.
► Fig.10
To cut a hedge top evenly, it helps to tie a string at the desired
hedge height and to trim along it, using it as a reference line.
► Fig.11
Attaching the chip receiver (optional accessory) on the
tool when trimming the hedge straight can avoid cut off
leaves' being thrown away.
► Fig.12
Rotate the handle for your easy handling before operation.
Refer to the section titled "Handle mounting position".
To cut a hedge side evenly, it helps to cut from the bottom upwards.
► Fig.13
Trim boxwood or rhododendron from the base toward
the top for a nice appearance and good job.
Installing or removing chip receiver
(optional accessory)
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before installing
or removing chip receiver.
NOTE:
• When replacing the chip receiver, always wear gloves
so that hands and face does not directly contact the
blade. Failure to do so may cause personal injury.
• Always be sure to remove the blade cover
before installing the chip receiver.
• The chip receiver receives cut-off leaves and
alleviates collecting thrown-away leaves. This
can be installed on either side of the tool.
► Fig.14: 1. Press 2. Chip receiver 3. Nut 4. Shear blade
Press the chip receiver on the shear blades so that its
slits overlap with the nuts on the shear blades. At this
time, make sure that the chip receiver does not contact
branch catcher at the top of the shear blades.
► Fig.15: 1. Nut 2. Branch catcher
At this time, the chip receiver needs to be installed so
that its hooks fit into grooves in the shear blade unit.
► Fig.16: 1. Hooks 2. Fit the hooks into groove 3. Grooves
To remove the chip receiver, press its lever on both
sides so that the hooks are unlocked.
► Fig.17: 1. Press the levers on both sides 2. Unlock the hooks
CAUTION:
• The blade cover cannot be installed on the tool
with the chip receiver being installed. Before
carrying or storing, uninstall the chip receiver
and then install the blade cover to avoid blade
exposure.
NOTE:
• Check the chip receiver for secure installment
before use.
• Never try to uninstall the chip receiver by an
excessive force with its hooks locked in the
blade unit grooves. Using the excessive force
may damage it.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before attempt-
ing to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
Cleaning the tool
Clean out the tool by wiping off dust with a dry or soap-dipped rag.
Blade maintenance
Smear the blade before and once per hour during oper-
ation using machine oil or similars.
NOTE:
• Before smearing the blade, remove the chip receiver.
After operation, remove dust from both sides of the
blade with wired brush, wipe it off with a rag and then
apply enough low-viscosity oil, such as machine oil etc.
and spray-type lubricating oil.
CAUTION:
• Do not wash the blades in water. Failure to do
so may cause rust or damage on the tool.
NOTICE:
If the parts other than the shear blades
such as the crank are worn out, ask Makita
Authorized Service Centers for parts replacement
or repairs.
12 ENGLISH