Hitachi GP 2 Instruction Manual - Page 13

Prior To Operation, Warning

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English PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power source requirements specified on the product nameplate. 2. Power switch Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, the power tool will start operating immediately and can cause serious injury. 3. Extension cord When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity specified on the "USE OF EXTENSION CORD" section on page 9. The extension cord should be kept as short as practicable. WARNING: Damaged cord must be replaced or repaired. 4. Check the receptacle If the receptacle only loosely accepts the plug, the receptacle must be repaired. Consult an authorized electrician to make appropriate repairs. If such a fautly receptacle is used, it may cause overheating, resulting in firing hazard. 5. Check the work site and surrounding area Be sure that the work area has been thoroughly checked and prepared to avoid any unsafe conditions. Review the SAFETY section of this manual. 6. Installing a wheel WARNING: USING A WRONG SIZED WHEEL CAN CAUSE WHEEL BREAKAGE AND RESULTING SERIOUS INJURY. In order to avoid this hazard, refer to the following illustration to determine the proper dimensions(s) of your wheel. Some guidelines: (a) Dimension should always be less than 1/2" (13 mm). Longer lengths can result in excess vibration, wheel breakage, and the chance for serious injury. (b) When dimension d is 1/4" (6.35 mm), the diameter of the wheel (dimension D) should be less than 1" (25 mm). NEVER use a longer diameter wheel. (c) When dimension d is 1/8" (3.175 mm), the diameter of the wheel (dimension D) should be less than 3/8" (10 mm). (d) Dimension L varies according to the dimension D. Dimension L can be longer as dimension D increase. Refer to the following table: d D 3/16'' (5mm) L 1/2'' (13mm) 1/8''(3.175mm) 1/4'' 5/16'' (6mm) (8mm) 3/4'' 3/4'' (20mm) (20mm) 3/8'' (10mm) 3/4'' (20mm) 1/2'' (13mm) 1-1/2'' (38mm) (When =1/2''(13mm)) 1/4''(6.35mm) 5/8'' 3/4'' 1'' (16mm) (20mm) (25mm) 1'' 1'' 3/4'' (25mm) (25mm) (20mm) 13

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English
13
(When
=1/2’’(13mm))
d
1/8’’(3.175mm)
1/4’’(6.35mm)
D
3/16’’
1/4’’
5/16’’
3/8’’
1/2’’
5/8’’
3/4’’
1’’
(5mm)
(6mm)
(8mm)
(10mm)
(13mm)
(16mm)
(20mm)
(25mm)
L
1/2’’
3/4’’
3/4’’
3/4’’
1-1/2’’
1’’
1’’
3/4’’
(13mm)
(20mm)
(20mm)
(20mm)
(38mm)
(25mm)
(25mm)
(20mm)
PRIOR TO OPERATION
1.
Power source
Ensure that the power source to be utilized conforms to the power source requirements
specified on the product nameplate.
2.
Power switch
Ensure that the switch is in the OFF position. If the plug is connected to a receptacle
while the switch is in the ON position, the power tool will start operating immediately
and can cause serious injury.
3.
Extension cord
When the work area is far away from the power source, use an extension cord of
sufficient thickness and rated capacity specified on the "USE OF EXTENSION CORD"
section on page 9. The extension cord should be kept as short as practicable.
WARNING:
Damaged cord must be replaced or repaired.
4.
Check the receptacle
If the receptacle only loosely accepts the plug, the receptacle must be repaired. Consult
an authorized electrician to make appropriate repairs.
If such a fautly receptacle is used, it may cause overheating, resulting in firing hazard.
5.
Check the work site and surrounding area
Be sure that the work area has been thoroughly checked and prepared to avoid any
unsafe conditions. Review the SAFETY section of this manual.
6.
Installing a wheel
WARNING:
USING A WRONG SIZED WHEEL CAN CAUSE WHEEL BREAKAGE AND
RESULTING SERIOUS INJURY.
In order to avoid this hazard, refer to the following illustration to
determine the proper dimensions(s) of your wheel. Some guidelines:
(a) Dimension
should always be less than 1/2" (13 mm). Longer lengths can result in
excess vibration, wheel breakage, and the chance for serious injury.
(b)
When dimension d is 1/4" (6.35 mm), the diameter of the wheel (dimension D)
should be less than 1" (25 mm). NEVER use a longer diameter wheel.
(c)
When dimension d is 1/8" (3.175 mm), the diameter of the wheel (dimension D)
should be less than 3/8" (10 mm).
(d)
Dimension L varies according to the dimension D. Dimension L can be longer as
dimension D increase. Refer to the following table: