HIKOKI DH 28PD Instrucciones De Manejo página 16

English
(1) Mount the bull point or cold chisel.
(2) Press the push button and set the change lever to
mark. (Fig. 20)
The rotation is released, turn the tool and adjust the tool
to desired position. (Fig. 21)
(3) Turn the change lever to
Then bull point or cold chisel is locked.
9. Using the stopper (Fig. 22)
(1) Loosen the wing bolt and insert the stopper into the
mounting hole on the side handle.
(2) Adjust the stopper position according to the depth of the
hole and tighten the wing bolt securely.
10. How to use the drill bit (taper shank) and the taper
shank adapter
(1) Mount the taper shank adapter to the rotary hammer.
(Fig. 23)
(2) Mount the drill bit (taper shank) to the taper shank
adapter. (Fig. 23)
(3) Turn the switch ON, and drill a hole in prescribed depth.
(4) To remove the drill bit (taper shank), insert the cotter into
the slot of the taper shank adapter and strike the head of
the cotter with a hammer supporting on a rests. (Fig. 24)
11. Make sure to securely hold the tool as shown in
Fig. 31 during operation.
12. Using the side handle
When you wish to change a position of the side handle,
turn grip of the side handle counterclockwise to loosen it,
and then fasten it fi rmly. (Fig. 32)
CAUTION
When boring a hole, there can be a case where the
machine attempts to rotate by the reaction at the time of
penetrating a concrete wall and/or when a tip of the blade
comes in contact with the rebar.
Firmly fasten the side handle and hold the machine
with both of your hands. Unless you hold it securely, an
accident can occur.
HOW TO USE THE CORE BIT
(FOR LIGHT LOAD)
When boring penerating large holes use the core bit (for light
loads). At that time use with the center pin and the core bit
shank provided as optional accessories.
1. Mounting
CAUTION
Be sure to turn power OFF and disconnect the plug from
the receptacle.
(1) Mount the core bit to the core bit shank (Fig. 25).
Lubricate the thread of the core bit shank to facilitate
disassembly.
(2) Mount the core bit to the rotary hammer (Fig. 26).
(3) Insert the center pin into the guide plate until it stops.
(4) Engage the guide plate with the core bit, and turn the
guide plate to the left or the right so that it does not fall
even if it faces downward (Fig. 27).
2. How to bore (Fig. 28)
(1) Connect the plug to the power source.
(2) A spring is installed in the center pin.
Push it lightly to the wall or the fl oor straight.
Connect the core bit tip fl ush to the surface and start
operating.
(3) When boring about 5 mm in depth the position of the hole
will be established. Bore after that removing the center
pin and the guide plate from core bit.
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mark. (Fig. 19)
(4) Application of excessive force will not only expedite
the work, but will deteriorate the tip edge of the drill bit,
resulting in reduced service life of the rotary hammer.
CAUTION
When removing the center pin and the guide plate,
turn OFF the switch and disconnect the plug from the
receptacle.
3. Dismounting (Fig. 29)
Remove the core bit shank from the rotary hammer and
strike the head of the core bit shank strongly two or three
times with a hammer holding the core bit, then the thread
becomes loose and the core bit can be removed.
GREASE REPLACEMENT
This Rotary Hammer is of full air-tight construction to protect
against dust. This machine can be used without grease
replenishment for an extended period of time. However,
perform the grease replacement to extend 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) Disassemble the crank cover and thoroughly wipe off the
old grease inside. (Fig. 30)
(2) Supply 25 g of HiKOKI Electric Hammer Grease A
(standard accessory, contained in tube) in the crank
case.
(3) After replacing the grease, reassemble the crank 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 the
Center.
MAINTENANCE AND INSPECTION
1. Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning
and degraded effi 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 HiKOKI Authorized
Service Center.
authorized HiKOKI Service