Adjusting Saw Chain Tension - Makita UC002G Instruction Manual

ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
CAUTION:
Do not touch the saw chain with
bare hands. Always wear gloves when handling
the saw chain.
Installing or removing saw chain
CAUTION:
The saw chain and the guide bar
are still hot just after the operation. Let them cool
down enough before carrying out any work on
the tool.
CAUTION:
Carry out the procedure of install-
ing or removing saw chain in a clean place free
from sawdust and the like.
Installing the saw chain
T o i n s t a l l t h e s a w c h a i n , p e r f o r m
1. R e l e a s e t h e c h a i n b r a k e b y p u l l i n g t h e f r o n t h a n d
g u a r d .
2.
Loosen the chain adjusting screw, then the retain-
i n g n u t .
► Fig.10: 1. S p r o c k e t c o v e r 2. Chain adjusting screw
3. R e t a i n i n g n u t
3. R e m o v e t h e s p r o c k e t c o v e r .
4. C h e c k t h e d i r e c t i o n o f t h e s a w c h a i n . M a t c h t h e
d i r e c t i o n o f t h e s a w c h a i n w i t h t h a t o f t h e m a r k o n t h e
c h a i n s a w b o d y .
► Fig.11: 1. M a r k o n c h a i n s a w b o d y
5. F i t o n e e n d o f t h e s a w c h a i n o n t h e t o p o f t h e
g u i d e b a r .
6. F i t t h e o t h e r e n d o f t h e s a w c h a i n a r o u n d t h e
s p r o c k e t , t h e n a t t a c h t h e g u i d e b a r t o t h e c h a i n s a w
b o d y , a l i g n i n g t h e h o l e o n t h e g u i d e b a r w i t h t h e p i n o n
t h e c h a i n s a w b o d y .
► Fig.12: 1. S p r o c k e t 2. H o l e
7. I n s e r t t h e p r o t r u s i o n a n d t h e p i n o n t h e s p r o c k e t
c o v e r t o t h e c h a i n s a w b o d y , a n d t h e n c l o s e t h e c o v e r
s o t h a t t h e b o l t a n d p i n o n t h e c h a i n s a w b o d y m e e t
t h e i r c o u n t e r p a r t s o n t h e c o v e r .
► Fig.13: 1. P r o t r u s i o n 2. S p r o c k e t c o v e r 3. B o l t
4. P i n
8. T i g h t e n t h e r e t a i n i n g n u t t o s e c u r e t h e s p r o c k e t
cover, then loosen it a bit for tension adjustment.
► Fig.14: 1. R e t a i n i n g n u t
After installing the saw chain, adjust the saw chain
tension by referring to the section for adjusting saw
c h a i n t e n s i o n .
t h e f o l l o w i n g s t e p s :
16 ENGLISH
Removing the saw chain
T o r e m o v e t h e s a w c h a i n , p e r f o r m
1. R e l e a s e t h e c h a i n b r a k e b y p u l l i n g t h e f r o n t h a n d
g u a r d .
2.
Loosen the chain adjusting screw, then the retain-
i n g n u t .
► Fig.15: 1. Chain adjusting screw 2. R e t a i n i n g n u t
3. R e m o v e t h e s p r o c k e t c o v e r t h e n r e m o v e t h e s a w
c h a i n a n d g u i d e b a r f r o m

Adjusting saw chain tension

CAUTION:
Do not tighten the saw chain too
much. E x c e s s i v e l y h i g h t e n s i o n o f s a w c h a i n m a y
c a u s e b r e a k a g e o f s a w c h a i n a n d w e a r o f t h e g u i d e
b a r .
CAUTION:
A chain which is too loose can
jump off the bar and it may cause an injury
accident.
T h e s a w c h a i n m a y b e c o m e l o o s e a f t e r m a n y h o u r s
o f u s e . F r o m t i m e t o t i m e c h e c k t h e s a w c h a i n t e n s i o n
b e f o r e u s e .
1. R e l e a s e t h e c h a i n b r a k e b y p u l l i n g t h e f r o n t h a n d
g u a r d .
2. L o o s e n t h e r e t a i n i n g n u t a b i t t o l o o s e n t h e
s p r o c k e t c o v e r l i g h t l y .
► Fig.16: 1. R e t a i n i n g n u t
3. Lift up the guide bar tip slightly and adjust the
chain tension. Turn the chain adjusting screw clockwise
t o t i g h t e n , t u r n i t c o u n t e r c l o c k w i s e t o l o o s e n .
For chain blade 90PX and 91PX:
T i g h t e n t h e s a w c h a i n u n t i l t h e l o w e r s i d e o f t h e s a w
chain fits in the guide bar rail as illustrated.
► Fig.17: 1. G u i d e b a r 2. S a w c h a i n 3. Chain adjust-
i n g s c r e w
For chain blade 25AP:
T i g h t e n t h e s a w c h a i n s o t h a t t h e g a p b e t w e e n t h e c e n -
t e r o f t h e l o w e r s i d e o f t h e g u i d e b a r a n d t h e s a w c h a i n
b e c o m e s a p p r o x i m a t e l y 1 m m
4.
K e e p h o l d i n g t h e g u i d e b a r l i g h t l y a n d t i g h t e n t h e
s p r o c k e t c o v e r .
For chain blade 90PX and 91PX:
M a k e s u r e t h a t t h e s a w c h a i n d o e s n o t l o o s e a t t h e
l o w e r s i d e .
For chain blade 25AP:
M a k e s u r e t h a t t h e g a p b e t w e e n t h e c e n t e r o f t h e l o w e r
s i d e o f t h e g u i d e b a r a n d t h e s a w c h a i n i s a p p r o x i m a t e l y
1 m m t o 2 m m .
5. T i g h t e n t h e r e t a i n i n g n u t t o s e c u r e t h e s p r o c k e t
c o v e r .
► Fig.18: 1. R e t a i n i n g n u t
t h e f o l l o w i n g s t e p s :
t h e c h a i n s a w b o d y .
t o 2 m m .