Ryobi PCN 4040, Owner'S Operation Manual

 4

Sound pressure level (ISO 7182)       LpA av = 103.9 dBA
Sound power level (ISO 9207)           LwA av = 110 dBA
Vibration (ISO 7505):
        - Front Handle                            3.5 m/s

2

        - Rear  Handle                            7.7 m/s

2

When cutting without the SAFE-T-TIP®,  the user must
use proper techniques as shown in the manual to avoid
kick-back.

NOTE:

  Refer to  "Maintenance" later in this manual for

instructions on reinstalling the SAFE-T-TIP®  nose guard.

LOW KICK-BACK SAW CHAIN

A low-kick-back saw chain is a chain which has met the
kickback performance requirements.

As saw chains are sharpened, they lose some of the low
kickback qualities and extra caution is required.

GUIDE BARS

CHAIN BRAKE (Fig.3)

WARNING

(A) RUN POSITION
(B) BRAKE POSITION

The rakers (depth gauges) ahead of each cutter can
minimise the force of a kick-back reaction by preventing the
cutters from digging in too deeply at the kick-back zone.
Only use replacement chain that is equivalent to the original
chain or has been certified as a low kick-back chain.

(A)   Front hand guard/ 

  Chain Brake 

(B)   Front handle
(C)   Cylinder cover
(D)   Primer bulb
(E)   Choke Lever
(F)   Chain
(G)   SAFE- T-TIP®
(H)   Guide Bar
( I )   Chain Catcher
(J )   Trigger Release

Read the operation manual and follow all

Chain brakes are designed to quickly stop the chain from
rotating. When the chain breake lever/hand guard is pushed
towards the bar, the chain should stop immediately.
A chain brake does not prevent kick-back. The chain brake
should be  cleaned and  tested daily.  Refer to "Operation"
later in this manaul for additional information.

Even with daily cleaning of the mechanism,
the dependability of a chain brake to perform
under field conditions cannot be cer tified.
Keep the SAFE-T-TIP® nose guard on the saw
guide bar and use proper cutting techniques.

(L)   Chain Oil Cap
(M)   Silencer
(N)   Carburettor
        Adjustment
(O)   Rear handle
(P)   Throttle Trigger
(Q)   Fuel Mix Cap
(R)   On/Off Switch
(S)   Starter/Fan Housing
(T)    Starter Grip

warnings and safety instructions.

Wear eye protection and ear protection.

Keep all bystanders, especially children and pets,
at least 15m from the operating area.

For your safety, study this entire manual before operating
the saw.  Pay particular attention to the precautions and 
instructions listed in the operator's manual.

WARNING

The warnings and instructions in this section of
the operator's manual are for your safety and to 
prevent serious personal injury.

SAFE-T-TIP® ANTI-KICK-BACK NOSE GUARD (Fig.2)

The SAFE-T-TIP®  (A) prevents kick-back because it
covers the tip of the bar where rotational kick-back is
generated. Inexperienced persons should never attempt
to cut when the SAFE-T-TIP® has been removed from the
bar tip. Users such as professional loggers who need to
draw the tip through the cut, make boring cuts, or cut logs
bigger than the bar lenght , should reinstall the
SAFE-T-TIP® as soon as those cuts are complete.

UNDERSTANDING YOUR CHAINSAW SAFETY

DEVICES

Generally, guide bars with small radius tips have
somewhat lower kick-back potentials.
When making a replacement, be sure to order one of the 
Ryobi bars listed for your saw in this operator's manual.
The proper size SAFE-T-TIP® nose guard comes installed
on the bar. Use only guide bars that have a provision for 

mounting the SAFE-T-TIP®.

English

SPECIFICATIONS

FEATURES

OPERATION