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MA1
(1)
MA2
MA3
MA4
MA5
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9. Maintenance
■ OILING PORT
Dismount the guide bar and check the oiling port for
clogging. (MA1)
(1) Oiling port
■ GUIDE BAR
Remove sawdust in the bar groove and the oiling port.
(MA2)
(1) Groove
(2) Oiling port
(Type: Sprocket nose)
Grease the nose sprocket from the feeding port on the
tip of the bar. (MA3)
(1) Grease port
(2) Sprocket
■ OTHERS
Check for fuel leakage and loose fastenings or damage
to major parts, especially housing joints and guide bar
mounting. If any defects are found, make sure to have
them repaired before operating again.
■ SPROCKET
Check for extensive wear, and replace it when the
teeth are worn over 0.3mm. (MA4)
(1) Sprocket
■ GUIDE BAR
The bar rail should always be a square. Check for wear
of the bar rail. Apply a ruler to the bar and the outside
of a cutter. If a gap is observed between them, the rail
is normal. Otherwise, the bar rail is worn. Such a bar
needs to be corrected or replaced.(MA5)
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
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