Saw Chain Maintenance - Shindaiwa 269T Instruction Manual

4 mm
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 objectives 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.
3
30°
2
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 horizontally.
5. Sharpen the most damaged cutter first and then
take all the other cutters back to the same length.
1
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
higtht 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
0.64 mm

SAW CHAIN MAINTENANCE

4
90°
3
4
A
B
C
• 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 (4.0 mm Round file)
and a file holder, it is easier to receive a good result.
Consult your shindaiwa dealer for correct sharpening
tools and sizes.
WARNING
SWITCH OFF THE ENGINE BEFORE
SHARPENING THE CHAIN.
ALWAYS WEAR GLOVES WHEN WORKING ON
CHAIN.
A B
80°
30°
• Properly filed cutters are shown below.
A : Top plate angle 30°
B : Side plate angle 80°
C : Top plate cutting angle 60°
D : Depth gauge 0.64 mm
NOTE
These angles are referred to as Oregon 91VG.
For other branded saw chain, follow it's chain
manufacturer's instruction.
• 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 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.
23
1/5
DANGER
C D
0.64 mm
60°
Parallel
5