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10

UK

NOTE:

 Do not use dirty, used or otherwise contaminated oils.

Damage may occur to the oil pump, bar, or chain.

1.

Carefully pour the bar and chain oil into the tank.

2.

Fill the oil tank every time you fuel the engine.

STARTING THE ENGINE

See Figure 8.

WARNING:

Keep your body to the left of the chain line. Never straddle
the saw or chain, or lean over past the chain line.

1.

Place the chainsaw on level ground and ensure that no
objects or obstructions which could come in contact with the
bar and chain are in the immediate vicinity.

2.

Hold the front handle firmly with the left hand and put your
right foot onto the base of the rear handle.

STARTING A COLD ENGINE:

See Figure 3 and 8 through 14.

3.

Move the chain brake to the BRAKE position (

B

).

See Figure 3.

NOTE:

 Set the chain brake by pushing the chain brake

lever/hand guard forward (towards the bar), to the brake
position. Refer to “Operation – Operating the Chain Brake”
later in this manual for additional information.

4.

Set the ignition switch to the RUN (I) position (

A

).

5.

Fully press and release the PRIMER BULB (

C

) 7 times.

6.

Pull CHOKE (

D

) lever all the way OUT to full position (

E

).

The partial throttle position is automatically set when the
choke lever is set at full choke.

7.

Pull STARTER (

F

) until engine attempts to start.

Slowly pull the starter grip out for a short distance until you
feel the starter engage, then briskly pull straight up. Do not
pull to the end of the rope; this may damage the starter. Hold
onto the grip during rewinding.

Pull the starter rope until the first firing of the engine is heard
(no more than five pulls).

NOTE:

 A new unit may require additional pulls.

8.

Push CHOKE lever (

D

) all the way IN (

G

).

9.

Pull STARTER until engine runs.

NOTE:

 Allow the saw to run in this position 15-30 seconds

depending upon the temperature.

10.

SQUEEZE and release the throttle trigger (

H

).

Depress the throttle trigger which releases the trigger lock
button. Squeeze and release the throttle trigger to let the
engine idle.

11.

Move chain brake to RUN position.

Place chain brake lever/hand guard into the RUN position.
Refer to “Operation – Operating Chain Brake” for additional
information.

CAUTION:

Failure to release partial throttle when chain brake lever is
in the brake position will result in serious damage to the
unit. Never squeeze and hold the throttle trigger while the
chain brake is in the brake position.

CAUTION:

Failure to release partial throttle when chain brake lever
is in the brake position will result in serious damage to
the unit. Never squeeze and hold the throttle trigger while
the chain brake is in the brake position.

Now you are ready to pick up the saw. Use the proper grip for
both handles. Refer to “Operation – Proper Grip on Handles”
later in this manual for additional information.

STARTING A WARM ENGINE:

Follow the instructions for starting a cold engine (steps 1-9),
but do not attempt to start in the full choke position (skip
step 5). Push and release primer bulb 7 times. Pull the choke
out and push back it in to the original run position.

STOPPING THE ENGINE

See Figures 15.

Release the throttle trigger and let the engine return to idle.
To stop the engine, move the ignition switch to the “

O

” stop

position (

J

). Do not put the chainsaw on the ground when the

chain is still moving. For additional safety, set the chain brake
when the saw is not in use.

In the event that the ignition switch will not stop the saw, pull
the choke lever out to the fully extended position (Full Choke)
and engage chain brake to stop the engine.

If the ignition switch will not stop the saw when set to the “

O

stop position, have the ignition switch repaired before using
the chainsaw again to prevent unsafe conditions or serious injury.

Important:

 When you have finished using the saw, relieve tank

pressures by loosening the CHAIN OIL and FUEL MIX caps.
Then retighten the caps. Allow the engine to cool before storing.

PREPARING FOR CUTTING

PROPER CLOTHING FOR SAFETY

See Figure 16.

Wear loose-fitting clothing (

A

). Always wear heavy, long

trousers (

B

), boots (

C

), and gloves (

D

). Do not wear

jewellery, shorts, sandals, or go barefoot. Do not wear
loose-fitting clothing, which could be drawn into the engine
or catch the chain or undergrowth. Wear overalls, jeans, or
leggings made of cut-resistant material or ones that contain
cut-resistant inserts. Secure hair so that it is above shoulder
level.

Wear non-slip safety footwear and heavy-duty gloves to
improve your grip and to protect your hands.

Wear eye (

E

), hearing (

F

), and head (

G

) protection when

operating this equipment.

PROPER GRIP ON HANDLES

See Figures 17 and 18.

Refer to “Specific Safety Rules – Proper Clothing for Safety”
earlier in this manual for appropriate safety
equipment.

Wear non-slip gloves for maximum grip and protection.

OPERATION

Summary of Contents for PCN3840

Page 1: ...ured to Ryobi s high standard for dependability ease of operation and operator safety Properly cared for it will give you years of rugged trouble free performance WARNING To reduce the risk of injury...

Page 2: ...e and knowledge and should be performed only by a qualified service technician When servicing use only identical Ryobi replacement parts For safe operation read and understand all instructions before...

Page 3: ...handle and your left hand on the front handle with your thumbs and fingers encircling the chainsaw handles A firm grip together with a stiff left arm will help you maintain control of the saw if kick...

Page 4: ...roper tool is used to hold the flywheel in order to remove the clutch structural damage to the flywheel could occur and subsequently cause the flywheel to burst KEEPSAFE T TIP ANTI KICK BACKNOSEGUARD...

Page 5: ...felling a tree requires a larger work area than making other cuts i e bucking cuts etc PUSH AND PULL The reaction force is always opposite to the direction the chain is moving Thus the operator must b...

Page 6: ...and head protection when operating this equipment The SAFE T TIP nose guard on the guide bar helps prevent kick back No smoking sparks or open flame when mixing fuel or filling the fuel tank Hold and...

Page 7: ...s Fuel tank capacity 20 25 oz 19 4 oz Oil tank capacity 12 3 oz 11 8 oz Bar lengths 41 50 cm 16 20 in Chain pitch 8 26 mm 325 in Chaingauge 1 27 mm 050 in Chain type Semi Chisel LoPro Drive sprocket 7...

Page 8: ...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...

Page 9: ...them immediately with clean water If irritation is still present see a doctor immediately Clean up spilled fuel immediately WARNING Check for fuel leaks If any are found correct them before using the...

Page 10: ...nit Never squeeze and hold the throttle trigger while the chain brake is in the brake position CAUTION Failure to release partial throttle when chain brake lever is in the brake position will result i...

Page 11: ...ut a cutting load may result in unnecessary wear to the chain bar and engine 7 Do not put pressure on the saw at the end of the cut WORK AREA PRECAUTIONS See Figure 21 Cut only wood or materials made...

Page 12: ...s B Clear out the undergrowth around the tree to be felled C Do not cut trees near electrical wires or buildings D Consider the direction in which the tree leans E Check the tree for damaged or dead b...

Page 13: ...t touching the chain you should use the wedge to hold the cut open to prevent pinching NOTE When bucking or felling with a wedge you may need to remove the SAFE T TIP anti kick back device to allow th...

Page 14: ...ng that the bar pin groove is at the bottom with the upper and lower edges angled away from the guide bar 12 Replace the clutch cover and bar mounting nuts ASSEMBLING THE BAR AND CHAIN See Figures 3 a...

Page 15: ...sion the chain prior to sharpening NOTE Refer to Maintenance Adjusting the Chain Tension earlier in this manual 3 Use a 4 mm 5 32 in diameter round file and holder Do all your filing at the midpoint o...

Page 16: ...the tightness of the mounting screw before each use Tighten the mounting screw A of the nose guard as instructed below These are specially hardened screws If you cannot install the screw tightly repla...

Page 17: ...o restore performance We highly recommend that only qualified service technicians perform this service CHECKING THE FUEL FILTER See Figure 70 Check the fuel filter A periodically Replace it if contami...

Page 18: ...ion switch to run I position Push and fully release primer bulb 7 times Pull starter three times with choke lever at run If engine does not start move choke lever to choke and repeat normal starting p...

Page 19: ...and chain for damage NOTE The carburettor adjustment needle s are equipped with plastic cap s which prevent anticlockwise rotation from the original factory adjustment If your product exhibits specif...

Page 20: ...by the following approved body SLG Pr f und Zertifizierungs GmbH Certyfikat nr 100885D SLG Pr f und Zertifizierungs GmbH Certyfikat nr 100889O To effect correct application of the health and safety re...

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