Hitachi H 60MC, Инструкция по эксплуатации

Страница: 7 / 44

6
English
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, which could cause
a serious accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Installing Tools
CAUTION
Be sure to switch power OFF and disconnect the
plug from the receptacle to avoid serious trouble.
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
A
, and 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 fixed at the position of 12 steps.
(1) As shown in Fig. 3 , if the grip (A) is turned in the
direction of
B
in a state where the grip (B) is
pushed in the direction of
A
, the blade angle can
be changed freely to 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 fixed at any desired position;
360 degrees, and can also be fixed at any position
in the back-and-forth direction.
(1) Loosen the handle by turning the grip in the direction
of
A
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
B
and fix the
handle.
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 finger 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 firmly holding the demolition hammer with both
hands, one can effectively control the subsequent
recoil motion.
Proceed at a moderate work-rate, the use of too
much force will impair efficiency.
CAUTION
After long time of use, the cylinder case becomes
hot. Therefore, be careful not to burn your hands.
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 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 to 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 Hitachi Authorized Service
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 efficiency and
cause possible motor malfunction, sharpen or
replace the tool as soon as abrasion is noted.
01Eng_H60MC_WE 11/26/10, 9:32 6