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CAUTION
Exercise care not to excessively prolong driving
time, otherwise, the screws may be damaged by
excessive force.
Apply the rotary hammer perpendicularly to the
screw head when driving the screw; otherwise, the
screw head or bit will be damaged, or driving force
will not be fully transferred to the screw.
Do not attempt to use the rotary hammer in the
rotation and hammering function with the chuck
adapter and bit attached.
5. When driving wood screws (Fig. 13)
(1) Selecting a suitable driver bit
Employ plus-head screws, if possible, since the
driver bit easily slips off the heads of minus-head
screws.
(2) Driving in wood screws
Prior to driving in wood screws, make pilot holes
suitable for them in the wooden board. Apply the
bit to the screw head grooves and gently drive the
screws into the holes.
After rotating the rotary hammer at low speed for
a while until the wood screw is partly driven into
the wood, squeeze the trigger more strongly to
obtain the optimum driving force.
CAUTION
Exercise care in preparing a pilot hole suitable for
the wood screw taking the hardness of the wood
into consideration. Should the hole be excessively
small or shallow, requiring much power to drive
the screw into it, the thread of the wood screw may
sometimes be damaged.
6. Hammering only
This rotary hammer can be set to hammering only
mode by turning the change lever to the
(Fig. 14).
(1) Mount the bull point or cold chisel.
(2) Set the change lever to middle of
mark (Fig. 15).
The rotation is released, turn the tool and adjust
the cold chisel to desired position (Fig. 16).
(3) Turn the change lever to
Then bull point or cold chisel is locked.
7. Using depth gauge (Fig. 17)
(1) Loosen the knob on the side handle, and insert the
depth gauge into the mounting hole on the side
handle.
(2) Adjust the depth gauge position according to the
depth of the hole and tighten the knob securely.
8. How to use the drill bit (taper shank) and the taper
shank adapter
(1) Mount the taper shank adapter to the rotary hammer
(Fig. 18).
(2) Mount the drill bit (taper shank) to the taper shank
adapter (Fig. 18).
(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. 19).
mark
mark and
mark (Fig. 14).
LUBRICATION
Low viscosity grease is applied to this rotary hammer so
that it can be used for a long period without replacing the
grease. Please contact the nearest service center for
grease replacement when any grease is leaking form
loosened screw.
Further use of the rotary hammer despite the grease
shortage causes damage to reduce the service life.
CAUTION
A specific grease is used with this machine, therefore, the
normal performance of the machine may be badly affected
by use of different grease. Please be sure to let one of our
service centers to undertake replacement of the grease.
MAINTENANCE AND INSPECTION
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.
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. Cleaning on the outside
When the power tool is stained, wipe with a soft
dry cloth or a cloth moistened with soapy water.
Do not use chloric solvents, gasoline or paint thinner,
as they melt plastics.
6. Storage
Store the power tool in a place in which the
temperature is less than 40°C and out of reach of
children.
7. Service parts list
CAUTION
Repair, modification and inspection of Hitachi Power
Tools must be carried out by a Hitachi Authorized
Service Center.
This Parts List will be helpful if presented with the
tool to the Hitachi Authorized Service Center when
requesting repair or other maintenance.
In the operation and maintenance of power tools,
the safety regulations and standards prescribed in
each country must be observed.
MODIFICATION
Hitachi Power Tools are constantly being improved
and modified to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without
prior notice.
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