Makita DUH521Z, Instruction Manual

Page: 11 / 76

11
Removing or installing shear blade
CAUTION:
• Before removing or installing shear blade, always be
sure that the tool is switched off and the battery
cartridge is removed.
• When replacing the shear blade, always wear gloves
without removing blade cover so that hands and face
does not directly contact the blade. Failure to do so
may cause personal injury.
NOTE:
• Do not wipe off grease from the gear and crank. Failure
to do so may cause damage to the tool.
Removing the shear blades (Fig. 16)
Reverse the tool and loosen four screws and remove the
under cover.
NOTE:
• Be careful not to get your hands dirty as grease is
applied in the shear blade driving area. (Fig. 17)
Loosen four screws and remove the blades. Remove the
washer and sponge from the shear blades and put them
aside. They are required for the later installation.
(Fig. 18)
If the sleeves are still left in the holes of the gear, remove
the gear and push the sleeves out of it with a screwdriver
or the like.
NOTE:
The washer underneath the gear may come off by
mistake when removing the gear. In this case, return it to
the original position as it was installed.
Installing the shear blade (Fig. 19)
Remove the blade cover from the old shear blades and fit
it onto the new ones to avoid contact with blades.
(Fig. 20)
Adjust the hole positions by turning the gear as illustrated.
(Fig. 21 & 22)
Apply some grease provided with the new shear blades
as illustrated.
(Fig. 23)
Put the removed sponge in the same position as the old
one. Make sure that the sleeves provided with the new
shear blades are put on the pins of the blade. Place the
new shear blades on the tool so that the pins fit in the
holes of the gear. If the sleeves on the pins come off
mistakenly, put them into the holes of the gear
beforehand.
(Fig. 24)
Install the blade and tighten the four screws and put the
removed washer in the same position as the old one.
(Fig. 25)
Install the under cover on the tool and tighten the four
screws firmly.
Storage
The hook hole in the tool bottom is convenient for hanging
the tool from a nail or screw on the wall.
(Fig. 26)
Remove the battery cartridge and put the blade cover on
the shear blades so that the blades are not exposed.
Store the tool out of the reach of children carefully.
Store the tool in the place not exposed to water and rain.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are recommended
for use with your Makita tool specified in this manual.
The use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Blade cover
• Shear blade assembly
• Makita genuine battery and charger
• Chip receiver
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ from
country to country.
Noise
ENG905-1
The typical A-weighted noise level determined according
to EN60745-2-15:
Model DUH481, DUH483, DUH521
Sound pressure level (L
pA
): 75 dB (A)
Uncertainty (K): 2.5 dB (A)
The noise level under working may exceed 80 dB (A).
Model DUH523
Sound pressure level (L
pA
): 77 dB (A)
Uncertainty (K): 2.5 dB (A)
The noise level under working may exceed 80 dB (A).
ENG907-1
• The declared noise emission value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
• The declared noise emission value(s) may also be
used in a preliminary assessment of exposure.
WARNING:
• Wear ear protection.
• The noise emission during actual use of the power
tool can differ from the declared value(s)
depending on the ways in which the tool is used
especially what kind of workpiece is processed.
• Be sure to identify safety measures to protect the
operator that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it
is running idle in addition to the trigger time).
Vibration
ENG900-1
The vibration total value (tri-axial vector sum) determined
according to EN60745-2-15:
Vibration emission (a
h
): 2.5 m/s
2
or less
Uncertainty (K): 1.5 m/s
2
ENG901-2
• The declared vibration total value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
• The declared vibration total value(s) may also be used
in a preliminary assessment of exposure.