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14

15

IDLE SPEED ADJUSTMENT

See Figure 21.

If the chain turns at idle, the idle speed screw needs ad-
justing on your trimmer engine. Turn the idle speed screw 
counterclockwise to reduce the idle RPM and stop the chain 
movement.  If the saw chain still moves at idle speed, contact 
a service dealer for adjustment and discontinue use until the 
repair is made.

WARNING: 

The  saw  chain  should  never  turn  at  idle.  Turn  the  idle 
speed screw counterclockwise to reduce the idle RPM 
and stop the chain, or contact a service dealer for ad-
justment and discontinue use until the repair is made. 
Serious personal injury  may result from the saw chain 
turning at idle.

MAINTENANCE

CHAIN OILER

See Figure 22.

n

   Use Premium Bar and Chain Oil. It is designed for chains 

and chain oilers and is formulated to perform over a wide 
temperature range with no dilution required.   

n

   Remove the cap and carefully pour approximately 8 oz. 

of bar and chain oil into the chain oiler tank. 

n

   Replace the cap and tighten securely.

n

   Check and refill the chain oiler tank every time the engine 

is fueled.

NOTE: 

Do not use dirty, used  or otherwise contaminated 

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

IDLE

SPEED SCREW

Fig. 21

Fig. 22

REMOVE 

CAP

REPLACE 

CAP

CHAIN OILER TANK

CHAIN MAINTENANCE

See Figure 23.

For smooth and fast cutting, the chain needs to be main-
tained properly. The following conditions indicate that the 
chain requires sharpening: 

Wood chips are small and powdery

Chain must be forced through the wood during cutting

Chain cuts to one side

During maintenance of the chain, consider the following:

Improper filing angle of the side plate can increase the 
risk of a severe kickback.

Depth gauge (or raker clearance) setting determines the 
height the cutter enters the wood and the size of the wood 
chip that is removed. Too much clearance increases the 
potential for kickback. Too little clearance decreases the 
size of the wood chip thus decreasing the chain's cutting 
ability.

If  cutter  teeth  have  hit  hard  objects  such  as  nails  and 
stones, or have been abraded by mud or sand on the 
wood, have service dealer sharpen chain.

DEPTH GAUGE SETTING

Fig. 23

Summary of Contents for RY52004A

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

Page 2: ...n Maintenance 13 17 n Troubleshooting 18 n Warranty 19 21 n Parts Ordering Service 22 TABLE OF CONTENTS INTRODUCTION This product has many features for making its use more pleasant and enjoyable Safe...

Page 3: ...plug wire before making any adjustments or repairs except for carburetor adjustments n Inspect the unit before each use for loose fasteners fuel leaks etc Replace any damaged parts before use n The c...

Page 4: ...cut with the engine running at full speed Fully squeeze the throttle trigger and maintain a steady cutting speed n Do not force tool Use the correct tool for your applica tion The correct tool will d...

Page 5: ...Operator s Manual To reduce the risk of injury user must read and understand operator s manual before using this product Eye Hearing and Head Protection Wear eye hearing and head protection when opera...

Page 6: ...ntially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Without Safety Alert Symbol Indicates a situation that may result in property damage WARNING To avoid se...

Page 7: ...ULB The priming bulb pumps fuel from the fuel tank to the car buretor This is necessary only when starting a cold engine or after refueling an engine that has run out of fuel SHOULDER STRAP The should...

Page 8: ...rd the packing material until you have care fully inspected and satisfactorily operated the tool n If any parts are damaged or missing please call 1 800 860 4050 for assistance PACKING LIST Power Head...

Page 9: ...ely in the positioning hole the shaft is not locked into place Slightly rotate from side to side until the button is locked into place n Tighten the knob securely CHAIN OILER Add bar and chain oil in...

Page 10: ...t firmly with both hands Always keep your left hand on the front handle and your right hand on the rear handle so your body is to the left of the chain line Never use a left handed cross handed grip o...

Page 11: ...branch will fall n Branches may fall in unexpected directions Do not stand directly under the branch being cut n The most typical cutting application is to position the unit at an angle of 60 or less...

Page 12: ...ne starts and runs n Lay the trimmer on a flat bare surface n PRIME Press the primer bulb 7 times n SET the start lever to the START position n PULL the rope until the engine starts n Allow the engine...

Page 13: ...y the parts shown on the parts list are intended to be repaired or replaced by the customer All other parts should be replaced at a Ryobi Authorized Service Center CHAIN TENSION See Figures 13 14 WARN...

Page 14: ...ion adjustment CHAIN TENSIONING SCREW Fig 19 BAR NUT Fig 20 n Remove all slack from chain by turning the chain tension ing screw clockwise assuring that the chain seats into the bar groove during tens...

Page 15: ...ighten securely n Check and refill the chain oiler tank every time the engine is fueled NOTE Do not use dirty used or otherwise contaminated oils Damage may occur to the oil pump bar or chain IDLE SPE...

Page 16: ...32 in diameter round file and holder n Keep the file level with the top plate of the tooth Do not let the file dip or rock LEFT HAND CUTTERS RIGHT HAND CUTTERS Fig 27 CAUTION Dull or improperly sharpe...

Page 17: ...l cap is loos ened check valve may be faulty or filter clogged Replace fuel cap if required SPARK PLUG ThisengineusesaChampionRCJ 6Ywith 025in electrode gap Use an exact replacement and replace annual...

Page 18: ...warm up If engine does not accelerate after three minutes contact a servicing dealer Engine starts but will only run at high speed at half choke Carburetor requires adjustment Contact a servicing deal...

Page 19: ...to any Ryobi Technologies Inc product that has been altered or modified The warranty does not extend to repairs made necessary by normal wear or by the use of parts or accessories which are either INC...

Page 20: ...obi Technologies Inc service dealer as soon as a problem exists The warranty repairs should be completed in a reasonable amount of time not to exceed 30 days If you have any questions regarding your w...

Page 21: ...des Spark Plug X ALL EMISSIONS RELATED PARTS ARE WARRANTED FOR TWO YEARS OR FOR THE PERIOD OF TIME PRIOR TO THE PARTS FIRST SCHEDULED REPLACEMENT WHICHEVER COMES FIRST THIS PRODUCT WAS MANUFACTURED WI...

Page 22: ...sit Please call 1 800 860 4050 for your nearest Ryobi Authorized Service Center You can also check our web site at www ryobitools com for a complete list of Authorized Service Centers MODEL NO AND SER...

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