Makita UH4570 Instruction Manual page 10

Removing or installing shear blade
CAUTION:
• Before removing or installing shear blade, always be
sure that the tool is switched off and unplugged.
• 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.
• For specific way of removing and installing shear
blades refer to the reverse of a package for accessory
shear blades.
Removing the shear blades
Reverse the tool and loosen four screws. (Fig. 21)
NOTE:
• Be careful not to get your hands dirty as grease is
applied in the shear blade driving area.
Remove the under cover. (Fig. 22)
Remove the gear housing cover. (Fig. 23)
Set the crank at the angle as shown in the figure with a
slotted bit screwdriver. (Fig. 24)
Remove two screws from the shear blades and the shear
blade unit will be taken out. (Fig. 25)
CAUTION:
• Return the gear to the original position in such a
manner as it was installed if it should be taken away by
mistake.
Installing the shear blade
Prepare 4 removed screws (For under cover), 2 screws
(For shear blade), gear housing cover, under cover, and
new shear blades.
Adjust the crank position as shown in the figure. At this
time, apply some grease provided with new shear blades
to the periphery of the crank. (Fig. 26)
Overlap the oval hole in the upper blade with that in the
lower one. (Fig. 27)
Take out the blade cover from the old shear blades and fit
it onto the new ones for easy handling during the
replacement of blades. (Fig. 28)
Place the new shear blades on the tool so that the oval
holes in the shear blades fit onto the crank. Overlap the
holes in the shear blades with the screw holes in the tool
and then secure them with two screws. (Fig. 29)
Check the crank for smooth turn with a slotted bit
screwdriver. (Fig. 30)
Install the gear housing, under cover on the tool. Tighten
the screw firmly.
Remove the blade cover and then turn on the tool to
check it for proper movement.
NOTE:
• When the shear blades does not operate properly,
there is a poor fit between the blades and crank. Redo
from the beginning.
Storage
The hook hole in the bottom of the blade cover is
convenient for hanging the tool from a nail or screw on the
wall. (Fig. 31)
10
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,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized Service Centers, always using Makita
replacement parts.
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
• Hook complete
• Shear blade assembly
• Waist cord hook
• Arm cord hook
Noise
The typical A-weighted noise level determined according
to EN60745:
Sound pressure level (L
Sound power level (L
Uncertainty (K): 1.5 dB (A)
Wear ear protection.
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Work mode: hedge trimming
Vibration emission (a
Uncertainty (K): 1.5 m/s
• The declared vibration emission value has been
measured in accordance with the standard test method
and may be used for comparing one tool with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the power
tool can differ from the declared emission value
depending on the ways in which the tool is used.
• 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).
ENG102-3
): 89.9 dB (A)
pA
): 97.9 dB (A)
WA
ENG231-1
2
): 6.7 m/s
h
2
ENG901-1