Maintenance - Makita BFR440X Instruction Manual

Always keep the tool firmly against the driving
•
surface until the driving is over. Failure to do so
may cause insufficient fastening of screws.
Be careful not to drive a screw onto another screw
•
already fastened.
Do not operate the tool without screws. It will
•
damage the driving surface.
If the feeder box does not work smoothly when
•
driving screws, spray car wax (spray type) on the
sliding surfaces. Never lubricate it.
Driving in corner
1
15mm
006812
This tool can be used to drive at a position 15 mm away
from the wall as shown in the figure.
CAUTION:
Driving at a position closer than 15 mm to the wall
•
or driving with the stopper base in contact with the
wall may damage the screw heads and cause wear
on the bit. This may also lead to poor fastening of
screws and malfunction of the tool.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before attempting to
perform inspection or maintenance.
Never use gasoline, benzine, thinner, alcohol or the
•
like. Discoloration, deformation or cracks may
result.
Replacing carbon brushes
1
006258
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
1. Wall
2. Stopper base
2
1. Limit mark
time. Use only identical carbon brushes.
Loosen the thumb screws which secure the casing. Pull
out the casing in the direction of the arrow.
1
2
006813
Use a screwdriver to remove two screws then remove
the front cover.
006815
Raise the arm part of the spring and then place it in the
recessed part of the housing with a slotted bit
screwdriver of slender shaft or the like.
006816
Use pliers to remove the carbon brush caps of the carbon
brushes. Take out the worn carbon brushes, insert the
new ones and replace the carbon brush caps in reverse.
006817
Make sure that the carbon brush caps have fit into the
holes in brush holders securely.
7
1. Casing
2. Thumb screws
1. Front cover
1
2. Screws
2
1
1. Spring
2. Arm
3. Recessed part
2 3
1. Carbon brush
cap
1