Hitachi Koki DH 24PH, Handling Instructions Manual

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4
English
STANDARD ACCESSORIES
In addition to the main unit (1), the package contains
the accessories listed in the below.
○ Plastic case ................................................................ 1
○ Side handle ................................................................. 1
○ Depth gauge .............................................................. 1
○ Drill chuck holder (DH28PMY only) ............................ 1
Standard accessories are subject to change without notice.
APPLICATIONS
Rotation and hammering function
○ Drilling anchor holes
○ Drilling holes in concrete
○ Drilling holes in tile
Rotation only function
○ Drilling in steel or wood
(with optional accessories)
○ Tightening machine screws, wood screws
(with optional accessories)
Hammering only function
(DH24PH, DH26PC, DH28PCY, DH28PMY)
○ Light-duty chiselling of concrete, groove digging and
edging.
SPECIFICATIONS
The speci fi cations of this machine are listed in the Table on
page 99.
NOTE
Due to HITACHI’s continuing program of research and
development, the speci fi cations herein are subject to
change without prior notice.
MOUNTING AND OPERATION
Action Figure Page
Inserting SDS-plus drilling tools 1 100
Removing SDS-plus drilling tools 2 100
Selecting rotation direction 3 100
Selecting the operating mode 4 100
Adjusting the drilling depth 5 100
Changing the chisel position 6 100
Inserting the quick release chuck
(DH28PMY)
7 101
Removing the quick release chuck
(DH28PMY)*
1
8 101
Inserting round shank applications
tools (DH28PMY)
9 101
Switching on and o ff and setting
the speed
10 101
Locking-on the On / O ff switch 11 101
Releasing the On / O ff switch 12 101
Selecting accessories*
2
– 102,103
*1 If it is hard to pull out the drill chuck holder or the drill bit
holder, align the change lever with the mark and turn
the lock grip.
*2 For detailed information regarding each tool, contact a
Hitachi authorized service center.
LUBRICATION
Low viscosity grease is applied to this rotary hammer so that
it can be used for a long period without replacing the grease.
Replace the grease whenever you change the carbon brush
to maintain the service life.
Further use of the rotary hammer with lock o ff grease will
cause the machine to seize up reduce the service life.
CAUTION
A special grease is used with this machine, therefore,
the normal performance of the machine may be badly
a ff ected by use of other grease. Please be sure to let
one of our service agents undertake replacement of the
grease.
MAINTENANCE AND INSPECTION
1. Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning
and degraded e ffi ciency, replace the drill bit with new
ones or resharpen them without delay when abrasion is
noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the power
tool.
Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes
For your continued safety and electrical shock protection,
carbon brush inspection and replacement on this tool
should ONLY be performed by a Hitachi Authorized
Service Center.
5. Replacing supply cord
If the replacement of the supply cord is necessary, this
has to be done by the manufacturer of this agent in order
to avoid a safety hazard.
CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
GUARANTEE
We guarantee Hitachi Power Tools in accordance with
statutory/country speci fi c regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or
normal wear and tear. In case of complaint, please send
the Power Tool, undismantled, with the GUARANTEE
CERTIFICATE found at the end of this Handling instruction,
to a Hitachi Authorized Service Center.
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