15
English
CAUTION
●
When the battery charger has been continuously
used, the battery charger will be heated, thus
constituting the cause of the failures. Once the
charging has been completed, give 15 minutes
rest until the next charging.
●
If the battery is charged while it is heated because
it has been left for a long time in a location subject
to direct sunlight or because the battery has just
been used, the pilot lamp of the charger lights for
1 second, does not light for 0.5 seconds (o
ff
for
0.5 seconds).
The battery will not be recharged. In such a case,
let the battery cool before charging.
●
When the pilot lamp flickers (at 0.2-second
intervals), check for and take out any foreign
objects in the charger’s battery connector. If
there are no foreign objects, it is probable that
the battery or charger is malfunctioning. Take it
to your authorized Service Center.
PRIOR TO OPERATION
WARNING
To avoid serious accident, ensure the switch is
in the OFF position, and pull out the battery.
1. 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.
2. Installing a wheel
WARNING
USING A WRONG SIZED WHEEL OR A WRONG
RATED ROTATION SPEED WHEEL CAN CAUSE
WHEEL BREAKAGE AND RESULTING SERIOUS
INJURY.
In order to avoid this hazard, refer to the following
rated rotation speed wheel and the following
illustration to determine the proper dimensions(s)
of your wheel. Some guidelines:
(a) Use only wheels rated at 29,000 /min or more. Using
wheel rated less can lead to wheel disintegration
during operation and cause serious bodily injury.
(b) Dimension
ℓ
should always be less than 1/2" (13 mm).
Longer lengths can result in excess vibration, wheel
breakage, and the chance for serious injury.
(c) When dimension d is 1/4" (6.35 mm), the diameter
of the wheel (dimension D) should be less than 2"
(50 mm). NEVER use a longer diameter wheel.
(d) When dimension d is 1/8" (3.175 mm), the diameter
of the wheel (dimension D) should be less than 3/8"
(10 mm).
(e) Dimension L varies according to the dimension D.
Dimension L can be longer as dimension D increase.
(Table 5)
Fig. 7
Tapered portion
Collet chuck
Table
5
(When
ℓ
= 1/2" (13 mm))
d
D
L
1/8" (3.175 mm)
3/16" (5 mm)
1/2" (13 mm)
1/4" (6 mm)
3/4" (20 mm)
5/16" (8 mm)
3/4" (20 mm)
3/8" (10 mm)
3/4" (20 mm)
1/4" (6.35 mm)
1/2" (13 mm)
1-1/2" (38 mm)
5/8" (16 mm)
1" (25 mm)
3/4" (20 mm)
1" (25 mm)
1" (25 mm)
3/4" (20 mm)
1-1/4" (32 mm)
1/2" (13 mm)
1-1/2" (38 mm)
9/32" (7 mm)
Wheels can be simply attached and detached by using two
wrenches. (Fig. 8)
Fig. 8
Spindle
Tighten
Collet chuck
00Book̲GP18DA̲NA.indb 15
00Book̲GP18DA̲NA.indb 15
2021/03/04 16:27:55
2021/03/04 16:27:55
