Air Filter; Fuel Filter; Oil Filter; Spark Plug - MTD GCS 50/45 Manual Del Usuario

- During sharpening, lock the chain, using the
brake.
- Use a round file (specific for chains) 5/32" (4
mm) in diameter (fig.18 part.1).
Observe the sharpening angle as in (fig.18
part.2-3).
- Sharpen by filing from the inside outwards (fig.
18 part. 5) all the teeth on one side and then all
the teeth on the other.
- Position the blade in such a way that it projects
about 1 mm (fig.18 part. 4) above the level of the
cutting edges.
Chain lubrication:
before each job, please check the efficiency of the
chain lubrication and test the oil level in the tank
(see charter 6 ); do not work without chain lubrica-
tion: even a short use without lubrication, would
definitely damage either the bar or the chain.
The efficiency of the oil flow can be tested (with
accelerated engine) by keeping the tip of the bar
near a surface in order to see some oil drops
(fig.36). Adjust, if needed, the oil flow (paragraph
8.5 and fig.34).
Drive sprocked: check the teeth wear , clearance
on cranck shaft and rubricate the bearing with
bearings grease
9.2 BAR
- Periodically clean the chain run groove and the
oil passages
- Lubricate the sprocket wheel with bearing
grease.
- Reverse the bar on the occasion of every mainte-
nance operation to ensure more uniform wear.
In case of chain / bar replacement, please use
original spare parts only; the type of bar and chain
originally supplied with the chain saw has been
tested and certificated according to the existing
laws, particularly in order to limit any kick back
CHAIN SAW OPERATING MANUAL
danger (see charter A18); therefore using non
original bar and chain can be very dangerous
for the user.
The brand and type of bar and chain are indicated
on the technical data table.

9.3 AIR FILTER

A clogged air filter: reduces the efficiency of the
engine and the efficiency of cutting, while increas-
ing fuel consumption.
- The air filter should be cleaned more frequently
when the wood being cut is dry or the work envi-
ronment is dusty.
a) Remove the top cover (fig. 20 part 1) by loose-
ning the screw (fig. 20 part 2).
Loosen the two retention knobs (fig. 20 part 3).
-Raise the filter (Fig. 20 part.4).
- Use compressed air to blow from the inside
outwards.
- If the dirt is hard to remove, wash with hot soapy
water.
b) Change the filter if damaged (deformed and/
or cracked).

9.4 FUEL FILTER

Can be taken out (through the refilling hole fig.35)
with a hook and held with a pair of long-toothed
pliers.
Change the filter at least once a year.
- Use an original filter as replacement.

9.5 OIL FILTER

To clean or change the filter, remove the chain
cutcher (fig. 33 part 1) by loosening the two screws
(part 2). Take the rubber cap (part 3) out of the
housing and remove the filter (part 4).

9.6 SPARK PLUG

At least once a year or if the engine has problems
starting up properly, check the condition of the
spark plug. Wait for the engine to cool before
operation.
GB
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