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14
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6. Warming up (Fig. 11)
The grease lubrication system in this unit may
require warming up in cold regions.
Position the end of the bit so makes contact with
the concrete, turn on the switch and perform
the warming up operation. Make sure that a
hitting sound is produced and then use the unit.
CAUTION:
When the warming up operation is performed,
hold the side handle and the main body
securely with both hands to maintain a secure
grip and be careful not to twist your body by
the jammed drill bit.
7. How to use the drill bit (taper shank) and
the taper shank adaptor.
(1) Install drill bit with taper shank in the taper
shank adaptor. (Fig. 12)
(2) Turn the power on and drill a base hole.
(3) After cleaning out dust with a syringe, attach
the plug to the anchor tip and drive in the
anchor with a manual hammer.
(4) To remove the drill bit with taper shank, insert
a cotter into the slot of the taper shank adaptor,
place supports under the Rotary Hammer and
tap the cotter with a manual hammer. (Fig. 13)
Fig. 11
Fig. 12
Drill Bit
(Taper shank)
Taper Shank Adaptor
Taper Shank
Adaptor
Cotter
Support
Fig. 13
01Eng_DH45MR_US 4/4/06, 10:2314