Hitachi CS 51EA Chainsaw User Manual


 
10
English
CROSS CUTTING LOGS, PRESSURE ON TOP
Take arm stance. Begin with an upper cut. Do not cut too deeply,
about 1/3 of the log diameter is enough. Finish with a bottom cut.
The saw cuts should meet. (Fig. 24)
30
28
31
32
29
33
Fig. 24
28. Relieving cut
29. Cross cut
30. Pressure on top
31. Pressure side
32. Ten sion side
33. Relative depth of saw cuts
THICK LOG, LARGER THAN GUIDE BAR LENGTH
Begin by cutting on the opposite side of the log. Pull the saw towards
you, followed by previous procedure. (Fig. 25)
Fig. 25
If the log is lying on the ground make a boring cut to avoid cutting into
the ground. Finish with a bottom cut. (Fig. 26)
Fig. 26
WARNING
KICKBACK DANGER
Do not attempt a boring cut if you are not properly trained. A
boring cut involves the use of the nose of the guide bar and can
result in kickback.
CROSS CUTTING LOGS, PRESSURE ON BOTTOM
Take arm stance. Begin with a bottom cut. The depth of the
cut
should be about 1/3 of the log diameter.
Finish with an upper cut. The saw cuts should meet. (Fig. 27)
36
35
37
38
34
39
Fig. 27
34. Relieving cut
35. Cross cut
36. Pressure on bottom
37. Ten sion side
38. Pressure side
39. Relative depth of saw cuts
THICK LOG, LARGER THAN GUIDE BAR LENGTH
Begin by cutting on the opposite side of the log. Pull the saw towards
you, followed by previous procedure. Make a boring cut if the
log is
close to the ground. Finish with a top cut. (Fig. 28)
Fig. 28
WARNING
KICKBACK DANGER
Do not attempt a boring cut if you are not properly trained. A
boring cut involves the use of the nose of the guide bar and can
result in kickback. (Fig. 29)
Fig. 29
IF THE SAW GETS STUCK
Stop the engine. Raise the log or change its position, using a thick
branch or pole as a lever. Do not try to pull the saw free. If you do,
you can deform the handle or be injured by the saw chain if the saw
is suddenly released.
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR OF THE EMISSION
CONTROL DEVICES AND SYSTEM MAY BE PERFORMED BY ANY
NON-ROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL.
Carburetor adjustment (Fig. 30)
Fig. 30
In the carburetor, fuel is mixed with air. When the engine is test run at
the factory, the carburetor is adjusted. A further adjustment may be
required, according to climate and altitude. The carburetor has one
adjustment possibility:
T = Idle speed adjustment screw.