Makita GA4590 Instruction Manual page 15

Installing or removing depressed
center wheel or ap disc
Optional accessory
WARNING:
When using a depressed center
wheel or ap disc, the wheel guard must be fitted
on the tool so that the closed side of the guard
al w ays points to w ard the operator.
WARNING:
Make sure that the mounting part
of the inner ange fits into the inner diameter of
the depressed center wheel / ap disc perfectly.
Mounting the inner flange on the wrong side may
r e s u l t i n t h e d a n g e r o u s v i b r a t i o n .
Mount the inner flange onto the spindle.
Make sure to fit the dented part of the inner flange onto
t h e s t r a i g h t p a r t a t t h e b o t t o m
Fit the depressed center wheel / flap disc on the inner
flange and screw the lock nut onto the spindle.
Fig.11: 1. L o c k n u t 2. D e p r e s s e d c e n t e r w h e e l
3. Inner flange 4. M o u n t i n g p a r t
To tighten the lock nut, press the shaft lock firmly so
t h a t t h e s p i n d l e c a n n o t r e v o l v e , t h e n u s e t h e l o c k n u t
wrench and securely tighten clockwise.
Fig.12: 1. L o c k n u t w r e n c h 2. S h a f t l o c k
T o r e m o v e t h e w h e e l , f o l l o w t h e i n s t a l l a t i o n p r o c e d u r e
i n r e v e r s e .
Installing or remo ing ex wheel
Optional accessory
WARNING:
Al w ays use supplied guard w hen
ex wheel is on the tool. W h e e l c a n s h a t t e r d u r i n g
u s e a n d g u a r d h e l p s t o r e d u c e c h a n c e s o f p e r s o n a l
injury.
Fig.13: 1. L o c k n u t 2. F l e x w h e e l 3. B a c k u p p a d
4. Inner flange
F o l l o w i n s t r u c t i o n s f o r d e p r e s s e d c e n t e r w h e e l b u t a l s o
u s e b a c k u p p a d o v e r w h e e l .
Installing or removing abrasive disc
Optional accessory
Fig.14: 1. S a n d i n g l o c k n u t 2. A b r a s i v e d i s c
3. Rubber pad
1.
M o u n t t h e r u b b e r p a d o n t o t h e s p i n d l e .
2. F i t t h e d i s c o n t h e r u b b e r p a d a n d s c r e w t h e s a n d -
i n g l o c k n u t o n t o t h e s p i n d l e .
3. Hold the spindle with the shaft lock, and securely
t i g h t e n t h e s a n d i n g l o c k n u t c l o c k w i s e w i t h t h e l o c k n u t
w r e n c h .
T o r e m o v e t h e d i s c , f o l l o w t h e i n s t a l l a t i o n p r o c e d u r e i n
r e v e r s e .
NOTE: Use sander accessories specified in this man-
ual. These must be purchased separately.
o f t h e s p i n d l e .
Super ange
Optional accessory
Only for model GA4590 / GA4592 / GA5090 / GA5092
Super flange is a special accessory for model which is
N O T e q u i p p e d w i t h a b r a k e f u n c t i o n .
Only 1/ of e orts needed to undo lock nut, compared
with conventional type.
Installing or removing Ezynut
Optional accessory
Only for tools with M14 spindle thread.
CAUTION:
Do not use Ezynut w ith Super
lange. Those anges are so thick that the entire
thread cannot be retained by the spindle.
Mount inner flange, abrasive wheel and Ezynut onto the
spindle so that Makita Logo on Ezynut faces outside.
Fig.15: 1. Ezynut 2. A b r a s i v e w h e e l 3. Inner flange
4. S p i n d l e
Press shaft lock firmly and tighten Ezynut by turning the
a b r a s i v e w h e e l c l o c k w i s e a s f a r a s i t t u r n s .
Fig.16: 1. S h a f t l o c k
To loosen the Ezynut, turn the outside ring of Ezynut
c o u n t e r c l o c k w i s e .
NOTE: Ezynut can be loosened by hand as long
a s t h e a r r o w p o i n t s t h e n o t c h . O t h e r w i s e a l o c k n u t
w r e n c h i s r e q u i r e d t o l o o s e n i t . I n s e r t o n e p i n o f t h e
wrench into a hole and turn Ezynut counterclockwise.
Fig.17: 1. A r r o w 2. N o t c h
Fig.18
Installing abrasi e cut-o / diamond
w heel
Optional accessory
WARNING:
/ diamond w heel, be sure to use only the special
wheel guard designed for use with cut-o wheels.
WARNING:
grinding.
Fig.19: 1. L o c k n u t 2. Abrasive cut-o wheel / dia-
m o n d w h e e l 3. Inner flange 4. W h e e l g u a r d
for abrasive cut-o wheel / diamond wheel
A s f o r t h e i n s t a l l a t i o n , f o l l o w t h e i n s t r u c t i o n s f o r
d e p r e s s e d c e n t e r w h e e l .
T h e d i r e c t i o n f o r m o u n t i n g t h e l o c k n u t a n d t h e i n n e r
flange varies by wheel type and thickness.
Refer to the following figures.
When installing the abrasi e cut-o wheel:
Fig.20: 1. L o c k n u t 2. Abrasive cut-o wheel
(Thinner than
o wheel ( mm (5/
flange
When installing the diamond w heel:
Fig.21: 1. L o c k n u t 2. Diamond wheel (Thinner than
mm (5/
(5/
15 ENGLISH
When using an abrasi e cut-o
NEVER use cut-o wheel for side
)) 3. A b r a s i v e c u t -
mm (5/
) or thicker) 4. I n n e r
)) 3. Diamond wheel ( mm
) or thicker) 4. Inner flange