How To Use; Maintenance And Inspection - Hitachi D 10VC2 Handling Instructions Manual

7. Installing the side handle (Optional accessory)
A Side handle can be installed on either side of the
tool for right or left handed use.
To install the side handle, thread it into the socket on
the desired side of the gear cover and tighten it
securely. (Fig. 6)
8. Attaching the hook. (Optional accessory)
For hook (side-attaching)
Fix the hook firmly on the desired side of the gear
cover using M10 bolt which is supplied with hook.
For hook (A) (top-attaching)
To attach the hook (A), it is necessary to disassemble
the handle portion which covered the tool's electrical
system. For your continued safety and electrical shock
protection, installing the hook (A) on this drill should
ONLY be performed by a HITACHI AUTHORIZED
SERVICE CENTER.
CAUTION:
When the power tool is used with a hook fixed to it,
pay attention to the following points:
Before hanging the main unit from the waist belt,
make sure that the drill has come to a complete stop.
While it is suspended from the waist belt, the power
plug must be disconnected from the power source.
Do not walk about with the power tool hanging from
the waist belt.
In the case of operation in a high place, it is dangerous
to drop the tool accidentally. If the hook is deformed
or hung from the wrong position, there is danger that
the hook will slip off and the tool will fall.
Be careful to avoid danger.
In making a through hole, the power tool sometimes
shakes violently when the workpiece is pierced, from
example. Be careful you are not hurt by the hook
even if such situation happens.

HOW TO USE

1. Switch operation
When the trigger is depressed, the tool rotates. When
the trigger is released, the tool stops.
The rotational speed of the drill can be controlled by
varying the amount that the trigger switch is pulled.
Speed is low when the trigger switch is pulled slightly
and increases as the trigger switch is pulled more.
The desired rotation speed can be pre-selected with
the speed control dial.
Turn the speed control dial clockwise for higher speed
and counterclockwise for lower speed. (Fig. 5)
Pulling the trigger and pushing the stopper, it keeps
the switched-on condition which is convenient for
continuous running. When switching off, the stopper
can be disconnected by pulling the trigger again.
2. Drilling
When drilling, start the drill slowly, and gradually
increasing speed as you drill.
Always apply pressure in a straight line with the bit.
Use enough pressure to keep drilling, but do not
push hard enough to stall the motor or deflect the bit.
To minimize stalling or breaking through the material,
reduce pressure on drill and ease the bit through the
last part of the hole.
(Fig. 7)
(Fig. 8)
If the drill stalls, release the trigger immediately,
remove the bit from the work and start again. Do not
click the trigger on and off in an attempt to start a
stalled drill. This can damage the drill.
The larger the drill bit diameter, the larger the reactive
force on your arm.
Be careful not to lose control of the drill because of
this reactive force.
To maintain firm control, establish a good foothold,
use side handle, hold the drill tightly with both hands,
and ensure that the drill is vertical to the material
being drilled.

MAINTENANCE AND INSPECTION

1. Inspecting the drill bits
Since use of an abraded drill bits will cause motor
malfunctioning and degraded efficiency, replace the
drill bits with a new one or resharpening 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 HITACHI
AUTHORIZED SERVICE CENTER.
5. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
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 it presented with the
tool to the Hitachi Authorized Serivde 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.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modified to incorporate the latest technological
advancements.
Acccordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
NOTE
Due to HITACHI's continuing program of research and
development, the specifications herein are subject to
change without prior notice.
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