4
English
Selecting accessories*
2
― 89
*1 By utilizing the empty weight of the machine and
by fi rmly holding the hammer with both hands, one
can eff ectively control the subsequent recoil motion.
Proceed at a moderate work-rate, the use of too much
force will impair effi ciency.
*2 For detailed information regarding each tool, contact a
HiKOKI authorized service center.
GREASE REPLACEMENT
This machine is of full air-tight construction to protect against
dust and to prevent lubricant leakage. This machine can be
used without grease supplement for an extended period of
time. However, perform the grease replacement to maintain
the service life. Replace the grease as described below.
1. Grease Replacement Period
You should look at the grease when you change the
carbon brush. (See item 4 in the section MAINTENANCE
AND INSPECTION.) Ask for grease replacement at the
nearest authorized HiKOKI Service Center.
In the case that you are forced to change the grease by
yourself, please follow the following points.
2. How to replace grease
CAUTION
Before replacing the grease, turn the power off and pull
out the plug from the receptacle.
(1) Remove the crank case cover and wipe off the old
grease inside. (Fig. 7)
(2) Supply 25g (the standard volume to cover the connecting
rod) of HiKOKI Electric Hammer Grease A to the crank
case.
(3) After replacing the grease, install the crank case cover
securely. At this time, do not damage or lose the oil seal.
NOTE
The HiKOKI Electric Hammer Grease A is of the low
viscosity type. When the grease is consumed, purchase
from an authorized HiKOKI Service Center.
MAINTENANCE AND INSPECTION
CAUTION
Be sure to switch OFF and disconnect the attachment
plug from the receptacle to avoid a serious accident.
1. Inspecting accessories
Since use of a dull accessory, such as a bull point, a
cutter, etc. will degrade effi ciency and cause possible
motor malfunction, sharpen or replace with a new one as
soon as 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 (Fig. 6)
The Motor employs carbon brushes which are
consumable parts. When they become worn to or near
the “wear limit” ⓐ, it results in motor trouble.
When an auto-stop carbon brush is equipped, the motor
will stop automatically. At that time, replace both carbon
brushes with new ones which have the same carbon
brush Numbers ⓑ shown in the Fig. 6. In addition,
always keep carbon brushes clean and ensure that they
slide freely within the brush holders.
5. Replacing carbon brushes (Fig. 6)
Loosen the set screws ⓒ and remove the tail cover ⓓ.
Remove the brush caps ⓔ and carbon brushes ⓕ. After
replacing the carbon brushes, do not forget to tighten the
brush caps securely and to install the tail cover.
CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
GUARANTEE
We guarantee HiKOKI Power Tools in accordance with
statutory/country specifi 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 HiKOKI Authorized Service Center.
IMPORTANT
Correct connection of the plug
The wires of the main lead are coloured in accordance with
the following code:
Blue: — Neutral
Brown: — Live
As the colours of the wires in the main lead of this tool may
not correspond with the coloured markings identifying the
terminals in your plug proceed as follows:
The wire coloured blue must be connected to the terminal
marked with the letter N or coloured black. The wire
coloured brown must be connected to the terminal marked
with the letter L or coloured red. Neither core must be
connected to the each terminal.
NOTE
This requirement is provided according to BRITISH
STANDARD 2769: 1984.
Therefore, the letter code and colour code may not be
applicable to other markets except The United Kingdom.
Information concerning vibration
Vibration total values (triax vector sum) determined
according to EN60745.
Chiselling:
Vibration emission value
a
h
, Cheq =
9.7 m/s
2
Uncertainty K = 1.8 m/s
2
The declared vibration total value has been measured in
accordance with a standard test method and may be used
for comparing one tool with another.
It may also be used in a preliminary assessment of exposure.
WARNING
○ The vibration emission during actual use of the power
tool can diff er from the declared total value depending in
the ways in which the tool is used.
○ Identify safety measures to protect the operator that
are based on an estimation of exposure in the actual
conditions of use (taking account of all parts of the
operating cycle such as the times when the tool is
switched off and when it is running idle in addition to the
trigger time).
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.
000Book̲H25PV.indb4000Book̲H25PV.indb4 2017/12/0710:16:302017/12/0710:16:30
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