Hitachi DV 20T User Manual

SERVICE AND REPAIRS
All quality tools will eventually require servicing or replacement of parts due to
wear from normal use. These operations should ONLY be performed by an
AUTHORIZED HITACHI POWER TOOL REPAIR SHOP.
REPLACEMENT PARTS
When servicing use only identical replacement parts.
DOUBLE INSULATION SYSTEM ENHANCES SAFE OPERATION
To enhance safe operation of this electric power tool, HITACHI has adopted a
double insulation system. The term "double insulation" used here denotes an
insulation system with two insulations physically separated and arranged
between the electrically conductive material connected to the power supply and
the outer frame subject to contact by the operator.
Thus, the power tool is termed double insulated and both the
"El" mark and "Double insulation", or either one is indicated on
the name plate.
While no external grounding is required with this system, normal
safety precautions as outlined in this manual must still be
followed.
To maintain the effectiveness of the double insulation system,
follow the precautions described below:
1. Always contact your dealer or an authorized HITACHI service agent when
assembling, disassembling or replacing parts other than accessories or carbon
brushes. Improper assembly and/or replacement with wrong parts may result
in eliminating the double insulation-feature.
2. Clean the exterior of the tool with a soft cloth moistened with soapy water,
and dry thoroughly. Chloric solvent, gasoline, and thinner will cause plastic
components to dissolve.
PRECAUTIONS ON USING HAMMER DRILL
1. Before drilling into walls, ceilings or floors, ensure that there are no concealed power
cables inside.
2. For DV20V2 and DV14V
O When boring concrete or similar hard materials in IMPACT mode, set the bit rotation
switch lever to the R-side. (Fig. 1)
O When tightening or loosening screws, be sure to set the change plate in ROTATION
mode. (Fig. 2)
3. Always hold the body handle and side handle of the power tools firmly. Otherwise the
counterforce produced may result in inaccurate and even dangerous operation.
DOUBLE INSULATION
4

Hitachi DV 20T Specifications

General

Brand	Hitachi
Model	DV 20T
Category	Drill
Language	English