Maintenance Of Saw Chain And Guide Bar - Zenoah G2501 Owner's Manual

7. Muffler
WARNING
If you do not attach the muffler correctly, after engine starts,
the muffler will be loosen and the hightemperature exhaust
gas spout. After cleaning the muffler, pay attention to fit up
the muffler according to the explanation as follows.
1. Muffler body, muffler cover and baffle will be combined
correctly.
2. Be sure the gasket is not broken. If it is broken, change to
the new one.
3. Before tightening the screw, rub the gross on it.
4. After making a test run, re-tighten the screw (TORQUE:
6.9-7.8 N.m./70-80 kg-cm)
WARNING
Right after stopping the engine, do not touch the muffler with
one's bare hands. It will cause to burn your hands.
If carbon clogs between the muffler, it will cause the poor-out-
put and the trouble in starting. After each 100 hours, check
and clean inside the muffler.

8. Maintenance of Saw Chain and Guide Bar

■ Saw Chain
WARNING
It is very important for smooth and safe operation to
always keep the cutters sharp.
The cutters need to be sharpened when:
• Sawdust becomes powder-like.
• You need extra force to saw in.
• The cut path 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 the chain.
Chain type:
File size: 5/32 in (4.0 mm)
*01_G2501 G2501ops_GB_CS5_六.indd 15
25AP
8. Recoil Starter
• For recoil maintenance, when attaching or detaching the
starter of One-push-start model, the select lever should
be in the position of the rear side (G2501 One-push-start
only).
• Don't pull the starter when detaching it from the unit. It will
cause machine defect or serious injury by touching rotat-
ing parts on your body part carelessly.
Select lever
WARNING
Don't pull the starter when detaching it from the unit.
Place the file on the cutter and push straight forward.
Keep the file position as illustrated.
After each cutter has been filed, check the depth gauge
and file it to the proper level as illustrated.
Appropriate gauge checker
.025ʺ (0.64 mm)
Depth gauge standard
G2501 / G2501 OPS
G
B
Set direction
Make the shoulder round
GB-15
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