Echo CS-1201 - Manual (Page 17)

17 CS-1201
1
3
4
5
NOTE
These angles are referred to as Oregon 27 saw chain.
For other branded saw chain, follow it’s chain
manufacturer’s instruction.
Parallel
A
30°
B C
60°
D
0.76 mm
85°
SAW CHAIN MAINTENANCE
4 mm
0.76 mm A
B
C
1/5
WARNING DANGER
SWITCH OFF THE ENGINE BEFORE SHARPENING
THE CHAIN.
ALWAYS WEAR GLOVES WHEN WORKING ON
CHAIN.
30°
4
10°
2
3
Never operate a chain saw with a dull or damaged
chain. If the chain requires excessive pressure to cut or
produces dust instead of wood chips then inspect the
cutters for damage. When sharpening the chain the
objective will be to maintain the same angles and
profiles throughout its life as when it was new.
Inspect the chain for damage or wear every time you
refuel your chain saw.
When the length of the cutting teeth has worn down to
only 4 mm the chain must be replaced. •
Sharpening
In order to file the chain correctly you need:round file
and file holder (A), flat file (B) and a depth gauge tool
(C).
By using the correct file size (5.6 mm Round file) and a
file holder, it is easier to receive a good result.
Consult your ECHO dealer for correct sharpening tools
and sizes.
•
Properly filed cutters are shown below.
A : Top plate angle 30°
B : Side plate angle 85°
C : Top plate cutting angle 60°
D : Depth gauge 0.76 mm 1. Lock the chain - push hand guard forward.
To rotate the chain - pull hand guard against front
handle.
2. Your chain will have alternative left and right hand
cutters. Always sharpen from the inside out.
3. Keep the angle lines of the file holder parallel to the
line of the chain and file the cutter back until the
damaged area (side plate and top plate) has been
removed.
4. Hold the file tipped 10° upward.
5. Sharpen the most damaged cutter first and then take
all the other cutters back to the same length.
1. The depth control determines the thickness of wood
chip produced and must be maintained correctly
throughout the chain life.
2. As the cutter length is reduced, the depth control
height is altered and must be reduced.
3. Position the depth gauge, and file off any of the depth
control which protrudes.
4. Round off the front of the depth control to allow
smooth cutting.
(PRECAUTION)
The following faults will increase the risk of kickback
considerably.
1) Top plate angle too large
2) Side plate angle too small
3) File diameter too small
4) Depth gauge too large
•
Drive link serves to remove sawdust from the groove of
the guide bar. Therefore, keep the lower edge of the
drive link sharp, indicated as 5.
- When setting of the chain is finished, soak it in oil and
wash away filings completely before using.
- When the chain has been filed on the bar, supply
sufficient oil to it, and rotate the chain slowly to wash
away the filings before using again.
- If the chain saw is operated with filings clogged in the
groove, the saw chain and the guide bar will be
damaged prematurely.
- If the saw chain becomes soiled with resin for
instance, clean it with kerosene and soak it in oil.