Functional Description; Overload Protection; Overheat Protection - Makita GA4593 Betriebsanleitung

20. Do not use cloth work gloves during operation.
Fibers from cloth gloves may enter the tool, which
c a u s e s t o o l b r e a k a g e .
2 1 . Before operation, make sure that there is no
buried object such as electric pipe, water pipe
or gas pipe in the workpiece. Otherwise, it may
c a u s e a n e l e c t r i c s h o c k , e l e c t r i c a l l e a k a g e o r g a s
l e a k .
22. If a blotter is attached to the wheel, do not
remove it. The diameter of the blotter must be
larger than the lock nut, outer flange, and inner
flange.
2 3 . Before installing a grinding wheel, always
check that the blotter part does not have any
abnormalities such as chips or cracks.
24. Tighten the lock nut properly. O v e r t i g h t e n i n g
the wheel can cause breakage and insu cient
tightening can cause fluttering.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity
with product (gained from repeated use) replace
strict adherence to safety rules for the subject
product. MISUSE or failure to follow the safety
rules stated in this instruction manual may cause
serious personal injury.
FUNCTIONAL
DESCRIPTION
CAUTION:
Always be sure that the tool is
switched off and unplugged before adjusting or
checking function on the tool.
Tool protection system
The tool is equipped with a tool protection system. This
system automatically reduces or cuts o power to the
motor to extend tool life. The tool will automatically
r e d u c e p o w e r o r s t o p d u r i n g o p e r a t i o n i f t h e t o o l i s
placed under one of the following conditions:

Overload protection

W h e n t h e t o o l i s o p e r a t e d i n a m a n n e r t h a t c a u s e s i t
to draw an abnormally high current, the tool reduces
power automatically without any indication. In this
s i t u a t i o n , r e m o v e t h e c a u s e o f t h e o v e r l o a d s o t h a t t h e
r o t a t i o n s p e e d r e c o v e r e d .

Overheat protection

Country specific
W h e n t h e t o o l i s o v e r h e a t e d , t h e t o o l s t o p s a u t o m a t -
ically and the indication lamp blinks in red. In this
s i t u a t i o n , l e t t h e t o o l c o o l d o w n . Y o u c a n t u r n t h e t o o l
o n a g a i n a f t e r t h e l a m p c h a n g e s t h e c o l o r f r o m
g r e e n .
Indication lamp
Fig.1: 1. I n d i c a t i o n l a m p
T h e i n d i c a t i o n l a m p l i g h t s u p g r e e n w h e n t h e t o o l i s
p l u g g e d .
I f t h e i n d i c a t i o n l a m p b l i n k s i n r e d , t h e o v e r h e a t p r o -
tection, Active Feedback sensing Technology, or the
a c c i d e n t a l r e - s t a r t p r e v e n t i v e f u n c t i o n s t o p s o p e r a t i o n .
In this situation, switch o the tool. Then, turn the tool
o n t o r e s t a r t .
If the indication lamp lights up in red after switch o the
t o o l , t h e t o o l i s o v e r h e a t e d . I n t h i s s i t u a t i o n , c o o l d o w n
t h e t o o l a n d w a i t u n t i l t h e i n d i c a t i o n l a m p l i g h t s u p i n
g r e e n .
Speed adjusting dial
Only for model GA4593 / GA5093
CAUTION:
at low speeds for a long time, the motor will get
overloaded and heated up.
CAUTION:
turned only as far as 5 and back to 1. Do not force
it past 5 or 1, or the speed adjusting function may
no longer work.
The rotating speed can be changed by turning the
speed adjusting dial to a given number setting from 1 to
5. H i g h e r s p e e d i s o b t a i n e d w h e n t h e d i a l i s t u r n e d i n
t h e d i r e c t i o n o f n u m b e r 5. A n d l o w e r s p e e d i s o b t a i n e d
when it is turned in the direction of number 1. Refer to
t h e b e l o w t a b l e f o r t h e r e l a t i o n s h i p b e t w e e n t h e n u m b e r
s e t t i n g s o n t h e d i a l a n d t h e a p p r o x i m a t e r o t a t i n g s p e e d .
Number
1
2
3
4
5
Fig.2: 1. Speed adjusting dial
Shaft lock
WARNING:
the spindle is moving. It may cause serious injury or
t h e t o o l d a m a g e .
P r e s s t h e s h a f t l o c k t o p r e v e n t s p i n d l e r o t a t i o n w h e n
i n s t a l l i n g o r r e m o v i n g a c c e s s o r i e s .
Fig.3: 1. S h a f t l o c k
r e d t o
13 ENGLISH
If the tool is operated continuously
The speed adjusting dial can be
Rated speed
-1
2, 800 m i n (/min)
-1
4, 500 m i n (/min)
-1
6, 500 m i n (/min)
-1
8, 000 m i n (/min)
-1
1 1 , 500 m i n (/min)
Never actuate the shaft lock when