Maintenance - Makita BUH481 Instruction Manual

CAUTION:
The blade cover (standard equipment) 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 attempting to
perform inspection or maintenance.
Cleaning the tool
Clean out the tool by wiping off dust with a dry or
soap-dipped rag.
CAUTION:
Never use gasoline, benzine, thinner, alcohol or
•
the like. Discoloration, deformation or cracks may
result.
Blade maintenance
Smear the blade before and once per hour during
operation using machine oil or the like.
NOTE:
Before smearing the blade, remove the chip
•
receiver.
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
•
may cause rust or damage on the tool.
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.15
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.16
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.17
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.18
Remove the blade cover from the old shear blades and
fit it onto the new ones to avoid contact with blades.
Fig.19
Adjust the hole positions by turning the gear as illustrated.
Fig.20
Fig.21
Apply some grease provided with the new shear blades
as illustrated.
Fig.22
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.23
Install the blade and tighten the four screws and put the
removed washer in the same position as the old one.
Fig.24
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.
9