Cleaning The Chain Drive; Maintaining The Guide Rail; Fitting The Guide Rail And Tensioning The Saw Chain; Maintaining The Spark Plug - Scheppach 5910114903 Originalbetriebsanleitung

13.3 Cleaning the chain drive

m WARNING
Risk of injury!
Always wear protective gloves when handling the
saw chain (17). There is a danger of injury from the
sharp cutting teeth!
Note
Clean the chain drive after each use.
• Place the chainsaw on a level and stable surface.
• Pull the front hand guard (1) backwards as far as
the stop to release the chain brake (see fig. D).
• Remove the two locking nuts (20) using the spark
plug spanner (31).
• Remove the sprocket cover (22).
• Carefully remove the saw chain (17) from the guide
rail (16) and the chain sprocket (26).
• Remove the guide rail (16). Clean it with a brush.
• Now clean the entire chain drive area and the saw
blade cover (22) with a brush or by blowing it out
with compressed air.
Assembly is done in the reverse order.

13.4 Maintaining the spark plug

• Remove the air filter (33) as described in 13.2
"Cleaning the air filter".
• Remove the spark plug connector (34) by turning it
to the left and right and pulling it at the same time.
Only hold and pull the spark plug connector (34) on
the connector. Never pull on the cable!
• Remove the spark plug using the enclosed spark
plug spanner (31).
• Assembly is done in the reverse order.
Electrode gap = 0.6 mm (distance between the elec-
trodes between which the ignition spark is generat-
ed). Check the spark plug for contamination after the
first 10 hours of operation and clean it with a copper
wire brush if required.
Afterwards, service the spark plug after every 50
hours of operation.
13.5 Maintaining the chain lubrication
• See the section "Checking and adjusting the chain
lubrication".
13.6 Maintaining the carburettor settings
• If the saw chain (17) moves when the engine is
idling or the engine goes out when you release the
throttle, you need to adjust the carburettor.
Note
Have the carburettor adjustment (e.g. adjusting the
idling speed) carried out by qualified specialists only
to prevent engine damage.

13.7 Maintaining the guide rail

• Remove any remaining burrs on the edge of the rail
using a metal file.
• Clean the guide rail (16) groove using a brush or
with compressed air. Replace the guide rail (16) as
soon as the groove is worn.
• Turn the guide rail (16) after every use to ensure
even wear.
• Check that the sprocket at the tip of the guide rail
(16) moves freely. Lubricate it if necessary with a
little bearing oil.
13.8 Fitting the guide rail and tensioning the saw
chain
m WARNING
Always switch the engine off before fitting parts.
m WARNING
Risk of injury!
Always wear protective gloves when handling the
saw chain (17). There is a danger of injury from the
sharp cutting teeth!
Note
A new saw chain (17) stretches and must be tight-
ened more regularly. Check the chain tension regu-
larly after every cut and adjust this as required.
Depending on wear, the guide rail (16) can be turned.
• Place the chainsaw on a level and stable surface.
• Pull the front hand guard (1) backwards as far as
the stop to release the chain brake (see fig. D).
• Remove the two locking nuts (20) using the spark
plug spanner (31).
• Remove the sprocket cover (22).
• Push the slotted hole of the guide rail (16) over the
two protruding bolts.
• Lay the saw chain (17) over the teeth of the chain
sprocket (26). Guide the saw chain (17) precisely in
the direction indicated on the guide rail (16). There
is a guide wheel at the tip of the guide rail (16) in
whose teeth the saw chain (17) must be laid.
• Lightly pull the guide rail (16) to pre-stress the saw
chain (17).
• Put the sprocket cover (22) back on. Make sure
that the chain tensioner pin (23) on the inside fits
into the appropriate hole (25) on the guide rail (16).
Adjust the chain-tensioner screw (21) as required
using the flat-head screwdriver (31).
• Tighten the two locking nuts (20) hand tight. Do not
tighten them too firmly.
• Use the flat-head screwdriver (31) to turn the
chain-tensioner screw (21) clockwise until the lower
part of the saw chain (17) slides into the guide rail
(16). The saw chain (17) must lie against the under-
side of the rail. When the chain brake is released,
you should be able to pull the saw chain (17) over
the guide rail (16) by hand.
www.scheppach.com
GB | 39