Makita UH4570 Instruction Manual page 9

CAUTION:
Do not use the gasoline, thinner, benzine or
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heating oil etc..
Blade maintenance
Smear the blade before and once per hour during
operation using machine oil or similars.
After operation, remove dust from both sides of the
blade with wired brush, wipe off it 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
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may cause rust or damage on the tool.
Removing or installing shear blade
CAUTION:
Before removing or installing shear blade, always
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be sure that the tool is switched off and unplugged.
When replacing the shear blade, always wear
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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.
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Failure to do so may cause damage to the tool.
For specific way of removing and installing shear
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blades refer to the reverse of a package for
accessory shear blades.
Removing the shear blades
Reverse the tool and loosen four screws.
Fig.20
NOTE:
Be careful not to get your hands dirty as grease is
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applied in the shear blade driving area.
Remove the under cover.
Fig.21
Remove the gear housing cover.
Fig.22
Set the crank at the angle as shown in the figure with a
slotted bit screwdriver.
Fig.23
Remove two screws from the shear blades and the
shear blade unit will be taken out.
Fig.24
CAUTION:
Return the gear to the original position as it is if it
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should be taken off 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.25
Overlap the oval hole in the upper blade with that in the
lower one.
Fig.26
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.27
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.28
Check the crank for smooth turn with a slotted bit
screwdriver.
Fig.29
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,
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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.30
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
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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.
attachment for its stated purpose.
9
or attachments
Only use accessory or
are