Hitachi CS40EM, Owner'S Manual

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GB-13
3. Guide bar
When the guide bar is dismounted, remove sawdust in the
bar groove and the oiling port.
Grease the nose sprocket from the feeding port on the tip of
the bar.
4. Others
Check for fuel leakage and loose fastenings and damage to
major parts, especially handle joints and guide bar mounting.
If any defects are found, make sure to have them repaired
before operating the saw again.
Q PERIODICAL SERVICE POINTS
1. Cylinder fins
Dust clogging between the cylinder fins will cause overheat-
ing of the engine. Periodically check and clean the cylinder
fins after removing the air cleaner and the cylinder cover.
When installing the cylinder cover, make sure that switch
wires and grommets are positioned correctly in place.
NOTE
Be sure to block the air intake hole.
WARNING
• Before cleaning, the inspecting or repairing the unit,
make sure that engine has stopped and is cool. Dis-
connect the spark plug to prevent accidental start-
ing.
Q MAINTENANCE AFTER EACH USE
1. Air filter
Dust on the cleaner surface can be removed by tapping a
corner of the cleaner against a hard surface. To clean dirt in
the meshes, split the cleaner into halves and brush in gaso-
line. When using compressed air, blow from the inside.
To assemble the cleaner halves, press the rim until it clicks.
NOTE
When installing the main filter, make sure that the
grooves on the filter edge are correctly fit with the pro-
jections on the cylinder cover.
2. Oiling port
Dismount the guide bar and check the oiling port for clog-
ging.
8. Maintenance
Oiling port
Grease port
Sprocket
Oiling port
A log lying on the ground
Saw down halfway, then roll the log over and cut from
the opposite side.
A log hanging off the ground
In area A, saw up from the bottom one-third and finish
by sawing down from the top. In area B, saw down
from the top one-third and finish by sawing up from
the bottom.
Cutting the limbs of Fallen Tree
First check to which side the limb is bent. Then make
the initial cut from the bent side and finish by sawing
from the opposite side.
WARNING
• Be alert to the springing back of a cut limb.
Pruning of Standing Tree
Cut up from the bottom, finish down from the top.
WARNING
• Do not overreach.
• Do not cut above shoulder height.
• Always use both your hands to hold the saw.