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8

UK

See Figure 1.

(

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

(

K

) Throttle Lock Button

(

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

OPERATION

FEATURES

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.

UNDERSTANDING YOUR CHAINSAW
SAFETY DEVICES

SAFE-T-TIP® ANTI-KICK-BACK NOSE GUARD

See Figure 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 length, should reinstall the SAFE-T-TIP® as soon as those
cuts are complete. 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 that has met the kick-back
performance requirements of ANSI B175.1-2000 (American
National Standard for Power Tools - Petrol-Powered Chainsaws -
Safety Requirements) when tested on the representative sample
of chainsaws below 3.8 c.i.d. specified in ANSI B175.1-2000.

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.

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

GUIDE BARS

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®.

CHAIN BRAKE

See Figure 3.

Chain brakes are designed to quickly stop the chain from
rotating. When the chain brake lever/hand guard is pushed
toward 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 manual for additional information.

(

A

) RUN POSITION

(

B

) BRAKE POSITION

WARNING:

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

Summary of Contents for RY74003D

Page 1: ...gh 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 the user must read...

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: ...r 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 kic...

Page 4: ...ve the clutch structural damage to the flywheel could occur and subsequently cause the flywheel to burst KEEP ALL PARTS OFYOUR BODY away from the saw chain when the engine is running KEEPSAFE T TIP AN...

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...

Page 6: ...d 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 op...

Page 7: ...um engine power ISO 7293 1 33 kW 1 78HP Maximum engine speed with attachment 12 500 min 1 Idle engine speed 2 800 3 400 min 1 Sound pressure level ISO 7182 LpA av 102 dBA Sound power level ISO 9207 Lw...

Page 8: ...kick back saw chain is a chain that has met the kick back performance requirements of ANSI B175 1 2000 American National Standard for Power Tools Petrol Powered Chainsaws Safety Requirements when test...

Page 9: ...diately 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 saw to pr...

Page 10: ...ng the Chain Brake later in this manual 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...

Page 11: ...ut a cutting load can 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: ...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 br...

Page 13: ...thout 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 allo...

Page 14: ...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 and...

Page 15: ...each return stroke 7 Put a few firm strokes on every tooth File all left hand cutters A in one direction Then move to the other side and file the right hand cutters B in the opposite direction See Fig...

Page 16: ...k 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 rep...

Page 17: ...rformance We highly recommended that only qualified service technicians perform this service CHECKING THE FUEL FILTER See Figure 70 Check the fuel filter A periodically Replace it if contaminated or d...

Page 18: ...nd repeat normal starting procedure If engine still fails to start repeat procedure with a new sparking plug Contact a Ryobi service dealer for carburettor adjustment Contact a Ryobi service dealer fo...

Page 19: ...tight 3 Check guide bar and chain assembly 4 Check guide bar and chain for damage Turn idling speed screw T clockwise to increase idling speed If chain turns at idle turn idling speed screw T anticloc...

Page 20: ...y SLG Pr f und Zertifizierungs GmbH Certificate No 100883D SLG Pr f und Zertifizierungs GmbH Certificate No 100887O To effect correct application of the health and safety requirements stated in the EE...

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