Hitachi DH 25 DL [13/86] English
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Hitachi DH 25 DL [13/86] English

Hitachi DH 25 DL [13/86] English
12
English
(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 the rest. (Fig. 15)
8. Switching between the “SAVE“ and the “POWER“
modes
The hammering force of the hammer can be
increased or decreased to conform with intended
usage, by operating the shift knob as per Fig. 16.
Adjust the force to match the usage intended.
(1) “SAVE“ mode ... decreased hammering force
This can prevent thin drill bits which are less than
5 mm in diameter, from being bent or broken.
(2) “POWER“ mode ... increased hammering force
䡬 This can be used to speedily and efficiently drill
holes when the drill bits which are being used are
greater than 5 mm in diameter.
䡬 This can be used to drill holes into wood or metal.
CAUTION:
Do not drill holes in wood with the “SAVE“ mode.
There is a likelihood that the motor will burn out
because it can easily lock up due to the low power.
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 (FG-6A) 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. 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.
5. Storage
Store the power tool in a place in which the
temperature is less than 40°C and out of reach of
children.
6. 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.
MODIFICATIONS:
Hitachi Power Tools are constantly being improved
and modified to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without
prior notice.
GUARANTEE
We guarantee Hitachi Power Tools in accordance with
statutory/country specific regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or
normal wear and tear. In case of complaint, please send
the Power Tool, undismantled, with the GUARANTEE
CERTIFICATE found at the end of this Handling instruction,
to a Hitachi Authorized Service Center.
NOTE:
Due to HITACHI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
Information concerning airborne noise and vibration
The measured values were determined according to
EN60745 and declared in accordance with ISO 4871.
[DH36DAL]
Measured A-weighted sound power level: 101 dB (A)
Measured A-weighted sound pressure level: 90 dB (A)
Uncertainty KpA: 3 dB (A).
Wear ear protection.
The typical weighted root mean square acceleration
value: 9 m/s
2
.

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English 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 the rest Fig 15 8 Switching between the SAVE and the POWER modes The hammering force of the hammer can be increased or decreased to conform with intended usage by operating the shift knob as per Fig 16 Adjust the force to match the usage intended 1 SAVE mode decreased hammering force This can prevent thin drill bits which are less than 5 mm in diameter from being bent or broken 2 POWER mode increased hammering force O This can be used to speedily and efficiently drill holes when the drill bits which are being used are greater than 5 mm in diameter O This can be used to drill holes into wood or metal CAUTION Do not drill holes in wood with the SAVE mode There is a likelihood that the motor will burn out because it can easily lock up due to the low power LUBRICATION Low viscosity grease is applied to thisrotary 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 FG 6A 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 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 5 Storage Store the power tool in a place in which the temperature is less than 40 C and out of reach of children 6 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 MODIFICATIONS Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancem ents Accordingly some parts may be changed without prior notice GUARANTEE We guarantee Hitachi Power Tools in accordance with statutory country specific regulation This guaranteedoes not cover defects or damage due to misuse abuse or normal wear and tear In case of complaint please send the Rower Tool undismantled with the GUARANTEE CERTIFICATEfound attheend of this Hand ling instruction to a Hitachi Authorized Service Center NOTE Due to HITACHI S continuing program development the specifications herein change without prior notice of research and are subject to Information concerning airborne noise and vibration The measured values were determined according to EN60745 and declared in accordance with ISO 4871 DH36DAL Measured A weighted sound power level 101 dB A Measured A weighted sound pressure level 90 Uncertainty KpA 3 dB A dB A Wear ear protection The typical value 9 m s2 weighted root mean square acceleration 12

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