Maintenance Of Saw Chain And Guide Bar - IKRA PCS 5046 Instrucciones De Servicio

4. Spark plug
Clean the electrodes with a wire brush and reset the gap
to 0.65 mm as necessary.
5. Sprocket
Check for cracks and for excessive wear interfering with
the chain drive. If the wearing is found obviously, re-
place it with a new one. Never fit a new chain on a worn
sprocket, or a worn chain on a new sprocket.
6. Front and Rear dampers
Replace if adhered part is peeled or crack is observed
on the rubber part.
7. Decompression valve (if applicable)
After extended period of use decompression valve may
close or come out due to the built up carbon inside of the
valve mounting hole in cylinder.
To remove the carbon, take the following steps:
1. Remove air cleaner cover, cylinder cover, spark plug
and decompression valve from the engine.
2. Clean the electrodes with a wire brush. Viewing
through the spark plug hole, crank down the piston
to the lowest position by pulling recoil starter slowly.
3. Prepare diameter 2-2.3mm drill bit.
4. Lay down the engine facing the valve mounting hole
downward so that the removed carbon will not drop
into cylinder.
5. Insert the drill bit into the hole turning slowing so that
the bit will scrape off the built up carbon.
6. Make sure to remove the drill bit and pull recoil star-
ter several times.
7. Reinstall the disassembled parts.
GB | Operating Instructions
Spark plug type:
NHSP LD L8RTF
1) Needle
bearing
2) Sprocket
3) Clutch drum
4) Washer
5) Clutch block
14

10.Maintenance of Saw Chain and Guide Bar

WARNING
It is very important for smooth and safe operation to keep
the cutters always sharp.
Your cutters need to be sharpened when:
• Sawdust becomes powder-like.
• You need extra force to saw in.
• The cut way does not go straight.
• Vibration increases.
• Fuel consumption increases.
Cutter setting standards:
WARNING
Be sure to wear safety gloves.
Before filing:
• Make sure the saw chain is held securely.
• Make sure the engine is stopped.
• Use a round file of proper size for your chain.
Chain type:
PCS 5046: Oregon 21BPX072 X
File size: 4.8 mm
Place your file on the cutter and push straight forward.
1) Cylinder
2) Decompression valve
3) Spark plug