Maintenance; Grease Lubrication - Makita DUH506 Instruction Manual

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.22: (1) Cutting height (2) 10 cm
NOTICE:
Do not cut down dead trees or similar
hard objects. Doing so may damage the tool.
NOTICE:
Do not trim the grass or weeds while
using the shear blades. The shear blades may
become tangled in the grass or weeds.
Hold the tool with both hands, hold the front handle
while pressing the switch lever and pull the switch trig-
ger, and then move the tool forward.
► Fig.23
For basic operation, tilt the shear blades toward the
trimming direction and move it calmly and slowly at the
speed rate of 3 to 4 seconds per meter.
► Fig.24
To cut a hedge top evenly, tie a string at the desired
height and trim along it.
► Fig.25
If the chip receiver is attached to the shear blades, it gathers
discarded leaves and makes clean-up afterward much easier.
► Fig.26
To cut a hedge side evenly, cut from the bottom to top.
► Fig.27
When trimming to make a round shape (trimming box-
wood or rhododendron, etc.), trim from the root to the
top for a beautiful finish.
► Fig.28

MAINTENANCE

CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
Cleaning the tool
Clean the tool by wiping off dust with a dry cloth or one
dipped in soapy water and wrung out.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
Shear blade maintenance
Before the operation or once per hour during operation,
apply low-viscosity oil (machine oil, or spray-type lubri-
cating oil) to the shear blades.
► Fig.29
After operation, remove dust from both sides of the
shear blades with a wired brush, wipe it off with a cloth
and then apply low-viscosity oil (machine oil, or spray-
type lubricating oil) to the shear blades.
► Fig.30
NOTICE:
Do not wash the shear blades in water.
Doing so may cause rust or damage to the tool.
NOTICE:
Dirt and corrosion cause excessive
blade friction and shorten the operating time per
battery charge.
Storage
The hook hole in the tool bottom is convenient for hang-
ing the tool from a nail or screw on the wall.
Attach the blade cover to the shear blades so that the blades
are not exposed. Store the tool out of the reach of children.
Store the tool in a place not exposed to moisture or rain.
► Fig.31: 1. Hole
Grinding the shear blades
NOTICE:
If the shear blades have considerably
deformed by grinding, replace the shear blades
with new ones.
1. Install the battery cartridge to the tool.
2. Turn on and start the tool so that the upper blade
and lower blade are positioned alternately.
► Fig.32
3.
Turn off the tool and remove the battery cartridge from the tool.
4. Set the angle of a file to 35°, and grind the upper
blade from 2 directions with the file.
► Fig.33: (1) File (2) 35°
CAUTION:
Before grinding the shear blades,
make sure that the tool is switched off and the
battery cartridge is removed from the tool.
5.
Place the tool upside down, and then remove the
burrs from the shear blades with the dressing stone.
► Fig.34: 1. Dressing stone
6. Set the angle of the file to 35°, and grind the lower
blade from 2 directions with the file.
7. Return the tool to normal position, and then remove
the burrs from the shear blades with the dressing stone.

Grease lubrication

Interval of lubrication: Every 50 operating hours
1. Remove the bolt from the hole for lubrication.
► Fig.35: 1. Bolt
2. Remove the cap from the grease vessel. Align the
outlet of the grease vessel with the hole on the cover,
and then turn the grease vessel to attach the outlet of
the grease vessel into the hole.
► Fig.36: 1. Grease vessel 2. Hole
3. Apply the grease to the tool (Approximately 3 g as a guide).
4. Remove the grease vessel.
5. Tighten the bolt.
15 ENGLISH