How To Use The Demolition Hammer; Maintenance And Inspection - Hitachi Koki H 60MC Instrucciones De Manejo

English
NOTE
When using tools such as bull points, cutters, etc.,
make sure to use the genuine parts designated by our
company.
(1) Clean the shank portion of the tool.
(2) As shown in Fig. 1, pull grip (A) in the direction of
insert the tool into a hole of the front cap.
(3) Adjust the groove position while turning the tool, and
furthermore insert it until it hits the end of the hole.
(4) Return grip (A) to its original position, pull the tool and
make sure it is locked completely (Fig. 2).
5. Deciding Working Position of Tool
The tool can be turned every 30 degrees and can be
fi xed at the position of 12 steps.
(1) As sho wn in Fig. 3, if the grip (A) is turned in the direction
of in a state where the grip (B) is pushed in the
B
direction of , the blade angle can be changed freely to
A
any desired position.
(2) Release grip (B) and turn the tool, and make sure that it is
locked completely.
6. Removing Tool
As shown in Fig. 1, pull grip (A), and pull out the tool.
CAUTION
Be sure to grip the handle and side handle during work.
Do not hold by the grip (A) during work. If you pull it by
mistake, the bull point could jump out.
7. Move the side handle
For bar type handle
Fixing the side handle (Fig. 4)
(1) Rotate the side handle in a clockwise direction to secure
it.
(2) Set the side handle to a position that is suited to the
operation and then securely tighten the side handle.
For D type handle
The side handle can be fi xed at any desired position;
360 degrees, and can also be fi xed at any position in the
back-and-forth direction.
(1) Loosen the handle by turning the grip in the direction of
as shown in Fig. 5.
(2) Adjust it to a position where vertical (up-and-down)
operation can be facilitated as illustrated in Fig. 6, Fig. 7,
and Fig. 8.
(3) Turn the grip in the direction of

HOW TO USE THE DEMOLITION HAMMER

(Fig. 9)
1. After placing the tip of the tool on concrete surface,
switch ON.
The switch can be turned ON if the trigger is pulled and
OFF when it is released.
If the stopper is pressed while the trigger for the switch
is pulled, even if your fi nger is released from the trigger,
the switch remains ON - convenient for continuous
operation.
To turn the switch OFF, pull the trigger again, and then
the stopper comes off .
2. By utilizing the empty weight of the machine and by fi rmly
holding the demolition 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.
CAUTION
After long time of use, the cylinder case becomes hot.
Therefore, be careful not to burn your hands.
5
, and
A
A
and fi x the handle.
B
GREASE REPLACEMENT
This machine is of full air-tight sealed 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 Hitachi
Authorized 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 cover and wipe off the old grease
inside (Fig. 10).
(2) Supply 76 g (the standard volume to cover the connecting
rod) of Hitachi Electric Hammer Grease A in the crank
case.
(3) After replacing the grease, install the crank cover
securely. At this time, do not damage or lose the oil seal.
NOTE
The Hitachi Electric Hammer Grease A is of the
low viscosity type. When the grease is consumed,
purchase from the
Center.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to switch power OFF and disconnect the plug
from the receptacle to avoid serious trouble.
1. Inspecting the tool
Since use of a dull tool will degrade effi ciency and cause
possible motor malfunction, sharpen or replace the tool
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. 11)
The Motor employs carbon brushes which are
consumable parts. When they become worn to or near
the "wear limit", it could result 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
Number shown in the fi gure. In addition, always keep
carbon brushes clean and ensure that they slide freely
within the brush holders.
5. Replacing carbon brushes
Loosen the set screw 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
properly and install the tail cover.
Hitachi Authorized Service