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Hikoki CS51EAP Manual

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11
Do not smoke or bring fl ames or sparks near the fueling
site.
○ Slowly open the fuel tank (15), when fi lling up with fuel,
so that possible overpressure disappears.
○ Tighten the fuel tank cap carefully, after fueling.
○ Always move the unit at least 3 m from the fueling area
before starting.
○ Always wash any spilled fuel from clothing immediately
with soap.
○ Be sure to check any fuel leaking after refueling.
○ Before fueling, in order to remove static electricity from
the main body, the fuel container and the operator,
please touch the ground that is slightly damp.
Before fueling, clean the tank cap area carefully, to ensure
that no dirt falls into the tank. Make sure that the fuel is well
mixed by shaking the container, before fueling.
Chain oil (Fig. 11)
WARNING
Never use waste or regenerated oil. If you use them, it
will cause damage to your health or this unit.
Slowly open the oil tank (16), and fi ll up with chain oil. Always
use high quality chain oil. When the engine is running, the
chain oil is automatically discharged.
Fill up the oil tank (16) with chain oil every time when
refueling.
NOTE
When pouring fuel or chain oil into the tank, place the unit
with cap side up. (Fig. 11)
ADJUSTMENT OF CHAIN OIL SUPPLY
The chain oil quantity discharged through the lubrication
system is adjusted to the maximum in the factory. Adjust the
quantity in accordance with the operating condition.
Turn the adjusting screw (17) counterclockwise to increase
the quantity and turn it clockwise to decrease the quantity.
(Fig. 12)
Chain brake operation (Fig. 3, 13)
Chain brake is designed to activate in an emergency such
as kick-back action.
Application of brake is made by moving the front hand guard
(2) towards the guide bar. During the chain brake operation,
even if the throttle lever is pulled, the engine speed does not
increase and the chain does not turn. To release the brake,
pull up the front hand guard (2) toward the front handle.
If the engine keeps rotating at high speed with the brake
engaged, the clutch will overheat causing trouble.
When the brake engages during operation, immediately
release the throttle lever to slow down the engine.
How to confi rm the activation of the chain brake
(Fig. 14)
1) Turn off the engine.
2) Holding the chain saw horizontally, release your hand
from the front handle, hit the tip of the guide bar to a
stump or a piece of wood, and confi rm brake operation.
Operating level varies by bar size.
In case the brake is not eff ective, ask HiKOKI Authorized
Service Centers for inspection and repairs.
Starting the cold engine (Fig. 3, 13-19)
CAUTION
Before starting, make sure that the guide bar/chain does
not touch anything.
1. Push the front hand guard (2) so that the brake is engaged.
(Fig. 13)
2. Set stop switch (18) to ON position. (Fig. 15)
3. Push priming pump (20) approximately ten times so that
fuel fl ows into carburetor. (Fig. 16)
4. Pull the choke lever (19) fully to set it in the START
position. (Fig. 16) This will automatically lock to half-
throttle.
5. Push the decompression valve (21).
The valve (21) will automatically return to the original
position once the engine has started. (Fig. 17)
6. Pull recoil starter (22) rapidly, taking care to keep the
handle in your grasp and not allowing the handle to snap
back. (Fig. 18)
7. When you hear fi rst ignition, push the choke lever (19)
fully to set it in the RUN position. (Fig. 16)
NOTE
When the choke lever is put back to the RUN position
from the START position by hand after it is fully pulled,
the throttle lever will be kept half-open (half-throttle).
8. Push the decompression valve.
9. Pull recoil starter (22) rapidly again in the aforementioned
manner. (Fig. 18)
NOTE
If engine does not start, repeat procedures from 4 to 9.
10. As soon as the engine starts, pull throttle lever (24) full
once with the throttle lever lockout (23) pressed and
immediately release the throttle lever (24). Then half-
throttle is disengaged. (Fig. 19)
11. Pull the front hand guard (2) so that the brake is
disengaged. (Fig. 3)
Allow the engine about 2-3 minutes to warm up before
subjecting it to any load.
Do not run the engine at high speed without the load to
avoid shortening the life of the engine.
Starting the warm engine
Use only 1, 2, 8, 9 and 11 of the starting procedure for a
cold engine.
If the engine does not start, use the same starting procedure
as for a cold engine.
Chain lubrication test (Fig. 20)
Check that chain oil is discharged properly. When the saw
chain starts to revolve, point the head of the guide bar to a
stump, etc., and pull the throttle lever to perform high-speed
operation for around 10 seconds. If chain oil is sprayed over
the stump, it is discharged properly.
WARNING
Do not carry the machine with the engine running.
Stopping (Fig. 21)
Decrease engine speed, and push stop switch (18) to stop
position.
WARNING
Do not put the machine where there are fl ammable
materials such as dried grass, since the muffl er is still
hot after the engine has stopped.
NOTE
If the engine does not stop, it can be forced to stop by
setting the choke lever in the START position. Before
restarting the engine, ask HiKOKI Authorized Service
Centers for repairs.
WARNING
○ Do not overreach or cut above shoulder height.
○ Use extra caution when felling, and do not use the chain
saw in a nose-high position or above shoulder height.
CHAIN CATCHER
The chain catcher is located on the power head just below
the chain to further prevent the possibility of a broken chain
striking the chain saw user.
WARNING
Do not stand in-line with chain when cutting.
BASIC TECHNIQUES FOR MAKING FELLING, LIMBING
AND BUCKING CUTS
The intention of the following information is to provide you
with the general introduction to wood cutting techniques.
000BookCS51EAP.indb11000BookCS51EAP.indb11 2019/01/2410:58:532019/01/2410:58:53
… 11 …


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