Replacing Carbon Brushes - Makita BFS440 Manual De Instrucciones

OPERATION
Screwdriving operation
008885
Fit the screw on the point of the bit and place the point of
the screw on the surface of the workpiece to be fastened.
Apply pressure to the tool and start it. Withdraw the tool
as soon as the clutch cuts in. Then release the switch
trigger.
CAUTION:
When fitting the screw onto the point of the bit, be
•
careful not to push in on the screw. If the screw is
pushed in, the clutch will engage and the screw will
rotate suddenly. This could damage a workpiece or
cause an injury.
Make sure that the bit is inserted straight in the
•
screw head, or the screw and/or bit may be
damaged.
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
time. Use only identical carbon brushes.
1. Limit mark
7
Use a screwdriver to remove two screws then remove
the front cover.
1
2
008886
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.
3
008887
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.
008888
Make sure that the carbon brush caps have fit into the
holes in brush holders securely.
1
2
006304
Reinstall the front cover and tighten two screws securely.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always
1. Front cover
2. Screws
1. Spring
1
2. Arm
3. Recessed part
2
1. Carbon brush
cap
1
1. Hole
2. Carbon brush
cap