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GB-15
G
B
PSZ2610
SPROCKET
Check for extensive wear, and replace it when the teeth are
worn over 0.3 mm.
(1) Sprocket
SAW CHAIN
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 : 90SG
File size : 5/32 in (4.0 mm)
Place your file on the cutter and push straightforward. Keep the
file position as illustrated.
After every cutter has been set, check the depth gauge and file
it to the proper level as illustrated. (MA7)
(1) Appropriate gauge checker
(2) Make the shoulder round
(3) Depth gauge standard
WARNING
Be sure to round off the front edge to reduce the chance of kick-
back or tie-strap breakage.
Make sure every cutter has the same length and edge angles
as illustrated.
(4) Cutter length (5) Filing angle
(6) Side plate angle (7) Top plate cutting angle
TRANSMISSION
The reduction gears are lubricated by multipurpose, lithium-
based grease in the transmission.
Supply new grease every 25 hours of use or more often de-
pending on the job condition.
When adding lubricant, use a grease gun to insert lubricant
into the three grease nipples located on the transmission.
(1) Grease fitting
9. Maintenance
0.3 mm
0.25" (0.65 mm)