Hitachi DH 14DL Handling Instructions Manual page 46

English
5. When driving wood screws (Fig. 20)
(1) Selecting a suitable driver bit
Employ plus-head screws, if possible, since the driver bit
easily slips off the heads of slotted-head screws.
(2) Tightening wood screws
Prior to tightening wood screws, make pilot holes suitable
for them in the wooden board. Apply the bit to the screw
head grooves and gently drive the screws in the holes.
CAUTION
Exercise care in preparing a pilot hole suitable for
the wood screw taking the hardness of the wood
into consideration. Should the hole be excessively
small or shallow, requiring much power to drive
the screw into it, the thread of the wood screw may
sometimes be damaged.
6. Using depth gauge (Fig. 21)
(1) Loosen the knob on the side handle, and insert the
depth gauge into the mounting hole on the side handle.
(2) Adjust the depth gauge position according to the depth
of the hole and tighten the knob bolt securely.
7. How to use the drill bit (taper shank) and the taper
shank adapter
(1) Mount the taper shank adapter to the rotary hammer.
(Fig. 22)
(2) Mount the drill bit (taper shank) to the taper shank
adapter. (Fig. 22)
(3) Turn the switch ON, and drill a hole to prescribed depth.
(4) To remove the drill bit (taper shank), insert the cotter into
the slot of the taper shank adapter and strike the head of
the cotter with a hammer supporting on the rest. (Fig. 23)
8. Switching between the "SAVE" and the "POWER" modes
The hammering force of the hammer can be increased or
decreased to conform with intended usage, by operating
the shift knob as per Fig. 24.
Adjust the force to match the usage intended.
(1) "SAVE" mode ... decreased hammering force
This can prevent thin drill bits which are less than 4.3 mm
in diameter, from being bent or broken.
(2) "POWER" mode ... increased hammering force
This can be used to speedily and effi ciently drill holes
○
when the drill bits which are being used are greater than
4 mm in diameter.
This can be used to drill holes into wood or metal.
○
Socket
Drill bit
Taper shank
adapter
Cotter
46
Bit
Chuck
Front cap
adaptor
Grip
Fig. 20
Depth
Mounting hole
gauge
Side
handle
Fig. 21
Grip
Front
cap
Fig. 22
Taper shank
adapter
Rest
Fig. 23
"SAVE"
mode
Shift
"POWER"
knob
mode
Fig. 24