Hitachi CJ90VST-NS [10/68] English
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Hitachi CJ90VST-NS [10/68] English

Hitachi CJ90VST-NS [10/68] English
English
9
CONCERNING CUTTING OF STAINLESS STEEL
PLATES
CAUTION:
In order to prevent blade dislodging, damage or excessive
wear on the Plunger, please make sure to have surface
of the base plate attached to the work piece while sawing.
When cutting stainless steel plates, adjust the unit as
described below:
1. Adjust the speed
NOTE:
Dial scale reading is for reference only. The higher
the speed is, the quicker the material is cut. But the
service life of the blade will be reduced in this case.
When the speed is too low, cutting will take longer,
although the service life will be prolonged. Make
adjustments as desired.
2. Set the orbital position to “0”
NOTE:
䡬 When cutting use cutting fluid (oil base cutting fluid)
to prolong the blade’s service life.
SELECTION OF BLADES
䡬 Accessory blades
To ensure maximum operating efficiency and results,
it is very important to select the appropriate blade
best suited to the type and thickness of the material
to be cut. Three types of blades are provided as
standard accessories. The blade number is engraved
in the vicinity of the mounting portion of each blade.
Select appropriate blades by referring to Table 1.
HOUSING THE HEXAGONAL BAR WRENCH
It is possible to house the hexagonal bar wrench on the
base. (See Fig. 16)
MAINTENANCE AND INSPECTION
1. Inspecting the blade
Continued use of a dull or damaged blade will result
in reduced cutting efficiency and may cause
overloading of the motor. Replace the blade with a
new one as soon as excessive 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. Replacing supply cord
If the supply cord of Tool is damaged, the Tool must
be returned to Hitachi Authorized Service Center for
the cord to be replaced.
6. Service parts list
CAUTION
Repair, modification and inspection of Hitachi Power
Tools must be carried out by an 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.
Measured A-weighted sound power level: 96 dB (A).
Measured A-weighted sound pressure level: 85 dB (A).
Uncertainty KpA: 3 dB (A).
Wear hearing protection.
Vibration total values (triax vector sum) determined
according to EN60745.
Cutting wood:
Vibration emission value ah, CW = 9.0 m/s
2
Uncertainty K = 1.5 m/s
2
Cutting sheet metal:
Vibration emission value ah, CM = 13.2 m/s
2
Uncertainty K = 1.5 m/s
2
Blade
Thickness of material
Dial Scale
No. 97 1.5 – 2.5 mm
Middle groove position
between scales “2”
and “3”

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English CONCERNING CUTTING OF STAINLESS STEEL PLATES CAUTION In orderto prevent blade dislodging damage or excessive wear on the Plunger please make sure to have surface of the base plate attached to the work piece while sawing When cutting stainless steel plates adjust the unit as described below 1 Adjust the speed Blade No 97 Thickness of material 1 5 2 5 mm Dial Scale Middle groove position between scales 2 and 3 NOTE Dial scale reading is for reference only The higher the speed is the quicker the material is cut But the service life of the blade will be reduced in this case When the speed is too low cutting will take longer although the service life will be prolonged Make adjustments as desired 2 Set the orbital position to 0 NOTE O When cutting use cutting fluid oil base cutting fluid to prolong the blade s service life SELECTION OF BLADES O Accessory blades To ensure maximum operating efficiency and results it is very important to select the appropriate blade best suited to the type and thickness of the material to be cut Three types of blades are provided as standard accessories The blade number is engraved in the vicinity of the mounting portion of each blade Select appropriate blades by referring to Table 1 HOUSING THE HEXAGONAL BAR WRENCH It is possible to house the hexagonal bar wrench on the base See Fig 16 MAINTENANCE AND INSPECTION 1 Inspecting the blade Continued use of a dull or damaged blade will result in reduced cutting efficiency and may cause overloading of the motor Replace the blade with a new one as soon as excessive abrasion is noted 2 Inspecting the mounting screws Regularly inspect all mounting screwsand 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 9 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 Replacing supply cord If the supply cord of Tool is damaged the Tool must be returned to Hitachi Authorized Service Center for the cord to be replaced 6 Service parts list CAUTION Repair modification and inspection of Hitachi Power Tools must be carried out by an 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 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 Measured A weighted sound power level 96 dB A Measured A weighted sound pressure level 85 dB A Uncertainty KpA 3 dB A Wear hearing protection Vibration total values according to EN60745 triax vector Cutting wood Vibration emission value Sh CW 9 0 m s2 Uncertainty K 1 5 m s2 Cutting sheet metal Vibration emission value Sh CM 13 2 m s2 Uncertainty K 1 5 m s2 sum determined

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