Operation; Maintenance - Makita DFT022F Instruction Manual

6. Align the yellow line with your desired number on
the fastening torque scale.
7. Insert the battery cartridge and be sure that a fas-
tening torque has been set up by using a fastening
torque tester.
8. Rotate the ring in front of the tool and then tighten
the screw to secure the ring.
NOTE:
• Numbers on the fastening torque scale is a
guideline to set up your desired fastening
torque.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before carrying
out any work on the tool.
Installing or removing driver bit or
socket bit
► Fig.9
Use only bit or socket bit that has inserting portion
shown in the figure.
For tool with shallow bit hole: A=12mm, B=9mm
For tool with deep bit hole: A=17mm, B=14mm
Do not use any other driver bit or socket bit.
To install the bit, pull the sleeve in the direction of the
arrow and insert the bit into the sleeve as far as it will
go. Then release the sleeve to secure the bit.
► Fig.10: 1. Bit 2. Sleeve
To remove the bit, pull the sleeve in the direction of the
arrow and pull the bit out firmly.
NOTE:
• If the bit is not inserted deep enough into the
sleeve, the sleeve will not return to its original
position and the bit will not be secured. In this
case, try re-inserting the bit according to the
instructions above.

OPERATION

Screwdriving operation
► Fig.11
Place the point of the driver bit in the screw head and
apply pressure to the tool. Then switch the tool on.
When the clutch cuts in, the motor will stop automati-
cally. Then release the switch trigger.
NOTE:
• Make sure that the driver bit is inserted straight
in the screw head, or the screw and/or bit may
be damaged.
Limits of fastening capacity
Use the tool within the range of the revolution angle up
to 360°. If you use the tool beyond the upper limit of this
range, the clutch does not work. And the tool cannot
deliver enough fastening torque (LED indicator flickers
in red and green alternatively).
NOTE:
• The revolution angle means the angle which
a screw/bolt revolves when the tool attains to
100% from 50% of desired torque.
• Use of a low temperature conditioned battery
cartridge may sometimes give warning for
battery cartridge capacity by warning lamp and
beeper which makes the tool stop immediately.
In this case, the fastening capacity may be
inferior to the specification on this manual even
if a charged battery cartridge is used.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before attempt-
ing to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
Replacing carbon brushes
► Fig.12: 1. Limit mark
Remove and check the carbon brushes regularly.
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.
► Fig.13: 1. Brush holder cap 2. Screwdriver
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
8 ENGLISH