O-Mac MF 2500 Manual page 63

It is essential that you use good quality oil to
lubricate the cutting parts effectively. Used
or poor quality oil does not guarantee good
lubrication and reduces the working life of the
chain and bar.
– It is always worth topping up the oil tank
completely (using a funnel) every time you
refuel. Since the oil tank capacity is enough
to guarantee that the fuel runs out first, you
will avoid the risk of operating the machine
without lubricant.
7.5 cleaning the machine and the engine
After every work session, clean the machine
thoroughly to remove all dust and debris.
• To reduce fire hazards:
– Keep the machine and, in particular, the
engine and muffler zone free of sawdust,
branches, leaves, or excessive grease;
– Use compressed air to clean the cylinder
fins on a regular basis (fig. 33).
• To avoid overheating and damage to the
engine:
– Always keep the cooling air vent (fig. 34)
Clean and free of sawdust and debris.
• Keep the clutch bell free of sawdust and
debris (fig. 35), Removing the clutch (par. 4.2)
And remounting it correctly afterwards.
Have your dealer check the greasing of the
internal bearing approximately every 30
hours.
7.6 Cleaning the chain
Remove any traces of sawdust or oil deposits
from the chain every time it is used.
If there is excessive dirt or resin build-up,
disassemble the chain and place it in a
container with a specific cleanser for a few
hours. Then rinse with clean water and treat
with a suitable anticorrosive spray, before
reassembling on the machine.
7.7 Chain catcher
Before use, always check the condition of the
chain catcher (fig.1.H) beforehand and replace
it if damaged.
7.8 Nuts and bolts
• Before use, always check that all nuts and
bolts are securely tightened to be sure the
machine is in safe working condition.
• Before use, always check that the hand
grips are firmly fastened in place.
VIII. Extraordinary
maintenance
8.1 Machine and bar lubrication holes
Before daily use, remove the clutch casing
(par. 4.2), Remove the bar and check that
neither the machine lubrication (fig. 36.A) nor
the guide bar (fig. 36.B) holes are clogged.
8.2 Cleaning the air filter
Important cleaning the air filter is essential to
guarantee the efficiency and durability of the
machine. Do not work with a damaged filter
or without a filter, as this could permanently
damage the engine.
It must be cleaned after every 8-10 working
hours.
Clean the filter as follows:
1. Release the tab (Fig. 37.A) and remove the
cover (Fig. 37.B).
2. Press the metal air filter block until it
attaches with a click (Fig. 38.A).
3. Remove the air filter (Fig. 38.B), tap it
gently to remove the dirt and clean using a
soft brush.
4. If the filter is completely clogged, wash
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