Ryobi RCS5133CB 5133001860 - Инструкция по эксплуатации - Страница 7

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HOLDING THE PRODUCT

See page 319.

Always hold the product with your right hand at the rear 
handle and your left hand at the front handle. Grip both 
handles with the thumbs and 

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 ngers encircling the handles. 

Ensure that your left hand is holding the front handle so that 
your thumb is underneath.

CHECKING AND OPERATING CHAIN BRAKE

1.  Engage the chain brake by rotating your left hand 

around the front handle. Allow the back of your hand to 
push the chain brake lever/hand guard toward the bar 
while the chain is rotating rapidly. Be sure to maintain 
both hands on the handles of the product at all times.

2.  Reset the chain brake back into the Run position by 

grasping the top of the chain brake lever/hand guard 
and pulling toward the front handle until you hear a 
click.

 WARNING

If the chain brake does not stop the chain immediately, 
or if the chain brake will not stay in the run position 
without assistance, bring the product to an authorised 
service centre for repair prior to use.

 WARNING

When the throttle trigger is released and the engine is 
running at idle speed, the saw chain must not move. If it 
does continue to move there is risk of severe injury to the 
operator. Do not use the product, bring the product to an 
authorised service centre for professional adjustment.

CHECKING THE CLUTCH

1.  Disengage the chain brake by pulling the chain brake 

lever/hand guard towards the front handle until a click 
is heard.

2.  Allow the engine to run idle. Ensure that the saw chain 

is not rotating. If the saw chain rotates while running 
at idle speed, the clutch may be damaged. Do not use 
the product. Bring the product to an authorised service 
centre for professional adjustment.

3.  Depress the throttle trigger half-way and run the product 

at mid speed. The saw chain should rotate smoothly if 
the clutch is in good working condition.

RESTARTING AFTER EXTENDED PERIODS OF HEAVY 
USE

After using the chain saw for extended periods of time, 
please let the product run in idle, with the chain brake 
engaged for 3 to 5 minutes, allowing accumulated heat 
of the engine to dissipate through the forced-air cooling 
system.
This helps prevent a potential heat soak and thus potential 
high stress of certain engine components (i.e. ignition 
system and carburettor).
After complete shut-off of the engine, you may experience 
dif

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 culties restarting the chainsaw due to this condition, 

which is completely normal. Thus, please allow the product 
to cool down before restarting.

Causes and operator prevention of kickback:

Kickback may occur when the nose or tip of the guide bar 
touches an object, or when the wood closes in and pinches 
the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse 
reaction, kicking the guide bar up and back towards the 
operator.
Pinching the saw chain along the top of the guide bar may 
push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of 
the saw which could result in serious personal injury. Do 
not rely exclusively upon the safety devices built into your 
saw. As a chainsaw user, you should take several steps to 
keep your cutting jobs free from accident or injury.
Kickback is the result of tool misuse and/or incorrect 
operating procedures or conditions and can be avoided by 
taking proper precautions as given below:

■

Maintain a firm grip, with thumbs and fingers 
encircling the chainsaw handles, with both hands 
on the saw and position your body and arm to allow 
you to resist kickback forces.

 Kickback forces can 

be controlled by the operator, if proper precautions are 
taken. Do not let go of the chainsaw.

■

Do not overreach and do not cut above shoulder 
height. 

This helps prevent unintended tip contact and 

enables better control of the chainsaw in unexpected 
situations.

■

Only use replacement bars and chains specified 
by the manufacturer.

 Incorrect replacement bars and 

chains may cause chain breakage and/or kickback.

■

Follow the manufacturer’s maintenance 
instructions for the saw chain.

 Decreasing the depth 

gauge height can lead to increased kickback.

INSTRUCTIONS CONCERNING THE PROPER TECH-
NIQUES FOR BASIC FELLING, LIMBING, AND CROSS-
CUTTING

Understanding the forces within the wood

When you understand the directional pressures and 
stresses inside the wood you can reduce the “pinches” or at 
least expect them during your cutting. Tension in the wood 
means the 

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 bers are being pulled apart and if you cut in 

this area the “kerf” or cut will tend to open as the product 
goes through. If a log is being supported on a saw horse 
and the end is hanging unsupported over the end then 
tension is created on the upper surface due to the weight 
of the overhanging log stretching the 

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 bers. Likewise, the 

underside of the log will be in compression and the 

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 bers 

are being pushed together. If a cut is made in this area the 
kerf will have the tendency to close up during the cut. This 
would pinch the blade.

Felling a tree

See page 323 - 324.

When bucking and felling operations are being performed 
by two or more persons at the same time, the felling 
operations should be separated from the bucking operation 
by a distance of at least twice the height of the tree being 
felled. Trees should not be felled in a manner that would 
endanger any person, strike any utility line or cause any