Working With The Tool; Maintenance; Sharpening The Saw Chain - Makita UC100D Instruction Manual

Working with the tool

CAUTION:
Keep all parts of the body away
from the saw chain when the tool is operating.
CAUTION:
Hold the tool firmly with both
hands when the tool is operating.
CAUTION:
Do not overreach. Keep proper
footing and balance at all times.
NOTICE:
Never toss or drop the tool.
NOTICE:
Do not cover the vents of the tool.
B e f o r e s t a r t i n g t h e t o o l , b r i n g t h e r o o t o f g u i d e b a r a n d
t h e s u p p o r t p a r t o f t o o l b o d y i n c o n t a c t w i t h t h e b r a n c h
to be cut as shown in the figure. While contacting the
b r a n c h w i t h t h e t o o l a n d g u i d e b a r , s t a r t t h e t o o l a n d
s a w t h e b r a n c h b y m o v i n g t h e t o o l d o w n a l o n g t h e
b r a n c h .
Fig.24
CAUTION:
Before the cutting operation, make
sure that the branch to be cut is in contact with
the root of guide bar and the support part of tool
body. O t h e r w i s e , t h e t o o l m a y b e p u l l e d t o w a r d t h e
t i p o f g u i d e b a r a n d t h e g u i d e b a r m a y w o b b l e , a n d
may result in an injury.
Carrying tool
B e f o r e c a r r y i n g t h e t o o l , a l w a y s r e m o v e t h e b a t t e r y
c a r t r i d g e f r o m t h e t o o l . T h e n a t t a c h t h e g u i d e b a r c o v e r .
A l s o c o v e r t h e b a t t e r y c a r t r i d g e w i t h t h e b a t t e r y c o v e r .
Fig.25: 1. G u i d e b a r c o v e r 2. B a t t e r y c o v e r

MAINTENANCE

CAUTION:
Always be sure that the tool is
switched o and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
CAUTION:
Always wear gloves when perform-
ing any inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
T o m a i n t a i n p r o d u c t S A F E T Y a n d R E L I A B I L I T Y ,
repairs, any other maintenance or adjustment should
b e p e r f o r m e d b y M a k i t a A u t h o r i z e d o r F a c t o r y S e r v i c e
C e n t e r s , a l w a y s u s i n g M a k i t a r e p l a c e m e n t p a r t s .

Sharpening the saw chain

Sharpen the saw chain when:
• M e a l y s a w d u s t i s p r o d u c e d w h e n d a m p w o o d i s
c u t ;
The chain penetrates the wood with di culty, even
w h e n h e a v y p r e s s u r e i s a p p l i e d ;
• T h e c u t t i n g e d g e i s o b v i o u s l y d a m a g e d ;
• T h e s a w p u l l s t o t h e l e f t o r r i g h t i n t h e w o o d .
( c a u s e d b y u n e v e n s h a r p e n i n g o f t h e s a w c h a i n o r
d a m a g e t o o n e s i d e o n l y )
S h a r p e n t h e s a w c h a i n f r e q u e n t l y b u t a l i t t l e e a c h t i m e .
Two or three strokes with a file are usually su cient for
r o u t i n e r e s h a r p e n i n g . W h e n t h e s a w c h a i n h a s b e e n
r e s h a r p e n e d s e v e r a l t i m e s , h a v e i t s h a r p e n e d i n o u r
a u t h o r i z e d s e r v i c e c e n t e r .
Sharpening criteria:
WARNING:
the cutting edge and depth gauge increases the
risk of kickback.
Fig.26: 1. C u t t e r l e n g t h 2. D i s t a n c e b e t w e e n c u t t i n g
e d g e a n d d e p t h g a u g e 3. M i n i m u m
l e n g t h ( 3 m m )
All cutter length must be equal. Different cutter
l e n g t h s p r e v e n t t h e s a w c h a i n f r o m
s m o o t h l y a n d m a y c a u s e t h e s a w c h a i n t o b r e a k .
— D o n o t s h a r p e n t h e c h a i n w h e n t h e c u t t e r l e n g t h
h a s r e a c h e d 3 m m
r e p l a c e d w i t h n e w o n e .
— T h e c h i p t h i c k n e s s i s d e t e r m i n e d b y t h e d i s t a n c e b e t w e e n
t h e d e p t h g a u g e ( r o u n d n o s e ) a n d t h e c u t t i n g e d g e .
— T h e b e s t c u t t i n g r e s u l t s a r e o b t a i n e d w i t h f o l l o w i n g
d i s t a n c e b e t w e e n c u t t i n g e d g e a n d d e p t h g a u g e .
• C h a i n b l a d e 80 T X L : 0. 6 5 m m
Fig.27
— T h e s h a r p e n i n g a n g l e o f 30 ° m u s t b e t h e s a m e o n
all cutters. Different cutter angles cause the chain
t o r u n r o u g h l y a n d u n e v e n l y , a c c e l e r a t e w e a r , a n d
l e a d t o c h a i n b r e a k s .
Use a suitable round file so that the proper sharp-
e n i n g a n g l e i s k e p t a g a i n s t t h e t e e t h .
• C h a i n b l a d e 80 T X L : 55 °
File and file guiding
Use a special round file (optional accessory) for
s a w c h a i n s t o s h a r p e n t h e c h a i n . N o r m a l r o u n d
files are not suitable.
— Diameter of the round file for each saw chain is as follows:
• C h a i n b l a d e 80 T X L : 4 .0 m m
The file should only engage the cutter on the for-
ward stroke. Lift the file off the cutter on the return
s t r o k e .
Sharpen the shortest cutter first. Then the length
o f t h i s s h o r t e s t c u t t e r b e c o m e s t h e s t a n d a r d f o r a l l
o t h e r c u t t e r s o n t h e s a w c h a i n .
Guide the file as shown in the figure.
Fig.28: 1. F i l e 2. S a w c h a i n
— The file can be guided more easily if a file holder
(optional accessory) is employed. The file holder has
m a r k i n g s f o r t h e c o r r e c t s h a r p e n i n g a n g l e o f 30° ( a l i g n
t h e m a r k i n g s p a r a l l e l t o t h e s a w c h a i n ) a n d l i m i t s t h e
depth of penetration (to /5 of the file diameter).
Fig.29: 1. F i l e h o l d e r
— A f t e r s h a r p e n i n g t h e c h a i n , c h e c k t h e h e i g h t o f t h e d e p t h
g a u g e u s i n g t h e c h a i n g a u g e t o o l ( o p t i o n a l a c c e s s o r y ) .
Fig.30
Remove any projecting material, however small,
with a special flat file (optional accessory).
Round off the front of the depth gauge again.
15 ENGLISH
An excessive distance between
r u n n i n g
o r s h o r t e r . T h e c h a i n m u s t b e
c u t t e r