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OWNER’S OPERATING MANUAL

PETROL CHAIN SAW

MODEL CS-4016/CS-4518/ES-4520

KEEP THIS MANUAL FOR FUTURE REFERENCE

Your new petrol chain saw has been engineered and manufactured to

Ryobi’s high standard of dependability, ease of operation and operator safety.

Properly cared for, it will give you years of rugged, trouble free performance. If

you use your petrol chain saw properly and only for what it is intended, you

will enjoy years of safe, reliable service.

SPECIFICATIONS

THANK YOU FOR BUYING A RYOBI

GASOLINE CHAIN SAW

CAUTION: Carefully read through this entire owner’s

manual, paying close attention to the general

safety rules and rules for safe operation,

before using.

1

Max cutting length

Model

CS-4016

380mm

1.6kW

1.8kW

1.8kW

10000min

-1

25:1

580 ml
250 ml

air cooling single cylinder

455mm

6.8kg

6.35kg

7kg

500mm

CS-4518

ES-4520

Engine type

Engine power

Rated output power
Maximum engine speed
Fuel mixing ratio
Fuel tank capacity
Oil tank capacity
Nett weight

2 stroke 40cc

2 stroke 45cc

2 stroke 45cc

Summary of Contents for CS-4016

Page 1: ...nded you will enjoy years of safe reliable service SPECIFICATIONS THANK YOU FOR BUYING A RYOBI GASOLINE CHAIN SAW CAUTION Carefully read through this entire owner s manual paying close attention to th...

Page 2: ...ensure that the lifting hook is not strained by excessive force PHYSICAL CONDITION 1 Do not operate a chain saw when you are tired or under the influence of alcohol or drugs 2 You should be in good p...

Page 3: ...t smoke or bring flame or sparks near fuel supplies 3 The fuel tank may be under pressure Always loosen the fuel cap and wait for pressure to be equalized before removing the cap 4 When fuel tank cap...

Page 4: ...e operator 3 Pull in can occur when the moving chain contacts a foreign object in the wood in the cut along the bottom of the guide bar and the saw chain is suddenly stopped This sudden stopping pulls...

Page 5: ...chain saw in a tree unless you have been specifically trained to do so 2 Keep all parts of your body away from the saw chain when the engine is running 3 Use extreme caution when cutting small size bu...

Page 6: ...the stopping time 6 Wear and fatigue of the activating brake spring and wear of the brake clutch drum and pivot point may lengthen the brake s stopping time 7 A damaged hand guard and lever may rende...

Page 7: ...ds Fig 3 A Note the position of the tension adjusters hole in the bar Fig 3 B This hole will need to be lined up with the tension adjustment pin when the clutch cover is refitted 5 Lay the chain aroun...

Page 8: ...0 ethyl alcohol Recommended mixture ratio 25 1 Do not mix directly in the engine fuel tank Mix fuel with 2 stroke oil in an approved container shake gently and ensure a thorough mix and pour into the...

Page 9: ...ting the saw WARNING During normal operation the chain brake clutch cover bar and chain are lubricated with chain oil After use oil will drain for many weeks and pool on the surface underneath the cha...

Page 10: ...tarter again several times until the motor starts 6 When the motor starts let it idle of a couple of seconds to warm up Apply part throttle Fig 13 and maintain the unit at a low to Medium speed for a...

Page 11: ...awing down from the top To saw a log in the middle of two supports holding it off the ground first saw down from the top one third through the log then finish by sawing up from the bottom Fig 18 When...

Page 12: ...uts are started The retreat path should extend back and diagonally to the rear of the expected line of fall as illustrated NOTE Direction of fall Fig 21 B is controlled by the notching cut Before any...

Page 13: ...ork on the chainsaw apart from the work described in this manual may only be carried out by authorised after sales service personnel Do not make any adjustments while the motor is in motion Do not mod...

Page 14: ...lter fit the cover for the engine air filter Make sure that the cover fits perfectly when you do so Tighten the fastening screw for the cover SPARK PLUG FIG 26 D To ensure that the saw s engine retain...

Page 15: ...nd file away the same number of strokes on all other cutters 5 If after sharpening a few times the depth gauge protrudes from the template you must reset its level using a flat file Fig 28 6 Finally r...

Page 16: ...th an automatic oiler system Fig 32 STORAGE Never put a chain saw into storage for longer than 30 days without carrying out the following steps Remove the fuel tank cap slowly to release any pressure...

Page 17: ...17 MAINTENANCE petrol petrol...

Page 18: ...18 NOTES...

Page 19: ...19 NOTES...

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