Hitachi DH 50MB Power Hammer User Manual


 
14
English
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.
(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)
USING DRILL CHUCK, CHUCK ADAPTOR
Note that this machine can be used at rotation only if separately sold parts such
as drill chuck and chuck adaptor are attached. Use it with the selector lever positioned
at rotation + hammering.
WARNING:
During operation, be sure to grip the handle and the side handle firmly to prevent
your body from swaying.
Fig. 12
Fig. 11
Taper Shank
Adaptor
Cotter
Support
Fig. 13
Drill Bit
(Taper shank)
Taper Shank Adaptor