Hitachi FDS10DT Handling Instructions Manual page 29

(2) Tightening power indication
Tightening power should be changed according to
the screw type and the materials to be tightened.
Guidance of the tightening power is indicated on
the outer frame of this unit with numerals "1", "2",
"3", "4" and "5". The minimum power is from "1"
position and bigger the value the stronger is the
power (see Fig. 5).
(3) How to adjusts the tightening power
Rotate the cap and set to one of the numerals.
Adjust the power by cap rotation in such a way that
when the power is too strong, set to the next
smaller numeral and set to the next larger numeral
when too weak.
CAUTION
The motor rotation may be locked to cease while
the unit is used as drill. While operating the driver
drill, take care not to lock the motor.
Too long hammering may cause the screw broken
due to excessive tightening.
Work
Wood: 15 mm
Drilling Steel: 10 mm
Aluminum: 10 mm
Machine screw: 6 mm
Driving Nut: 5 mm
Wood screw: 5.1 mm (diameter) x 35 mm (length)
5. How to select tightening power and rotational speed
Use
Machine screw
Driving
Wood screw
Wood
Drilling
Metal
CAUTION
The selection examples shown in Table 2 should
be considered as general standard. As different types
of tightening screws and different materials to be
tightened are used in actual works proper
adjustments are naturally necessary.
6. Mounting and dismounting of the bit.
(1) After inserting a driver bit, etc. into the keyless drill
chuck, firmly grasp the ring and tighten the sleeve
by turning it toward the right (in the clockwise
direction as viewed from the front). (See Fig. 8)
If the sleeve becomes loose during operation, tighten
it further. The tightening force becomes stronger
when the sleeve is tightened.
Table 1
Usable range
×
Table 2
Rotating speed selection (Position of the shift knob)
Cap Position
LOW (Low speed)
For 4 mm or smaller diameter
1 – 5
screws.
For 3.5 mm or smaller nominal
1 – 5
diameter screws.
For 10 mm or larger diameters.
For drilling with an iron
working drill.
3. Change rotation speed
Operate the shift knob to change the rotational
speed. Move the shift knob in the direction of the
arrow (see Figs. 6 and 7).
When the shift knob is set to "L", the drill rotates
at a low speed.
When set to "H", the drill rotates at a high speed.
CAUTION
When changing the rotational speed with the shift
knob, confirm that the switch is off.
Changing the speed while the motor is rotating will
damage the gears.
When setting the shift knob to "H" (high speed) and
the position of the cap is "4" or "5", it may happen
that the clutch does not engaged and that the motor
is locked. In suh a case, please set the shift knob
to "L" (low speed).
If the motor is locked, immediately turn the power
off. If the motor is locked for a while, the motor
or battery may be burnt.
4. The scope and suggestions for uses
The usable scope for various types of work based
on the mechanical structure of this unit is shown
in Table 1.
Use for drilling purpose.
Use the bit and socket matching the screw
diameter.
Use after drilling a preparatory hole.
L
(2) Dismounting the bit
Firmly grasp the ring and loosen the sleeve by
turning it toward the left (in the counter-clockwise
direction as viewed from the front). (See Fig. 8)
CAUTION:
When it is no longer possible to loosen the sleeve,
use a vise or similar instrument to secure the bit.
Set the clutch mode between 1 and 3 and then turn
the sleeve to the loose side (left side) while operating
the clutch. It should be easy now to loosen the
sleeve.
English
Suggestions
HIGH (High speed)
For 5 mm or larger diameter
screws.
For 3.8 mm or larger nominal
diameter screws.
For 10 mm or smaller
diameters.
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