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MAINTENANCE

CAUTION:

Dull or improperly sharpened chain can cause excessive 
engine speed during cutting which may result in severe 
engine damage.

WARNING: 

Improper  chain  sharpening  increases  the  potential  of 
kickback.  Failure  to  replace  or  repair  damaged  chain 
can cause serious injury.

CLEANING THE EXHAUST PORT AND 
MUFFLER

Depending on the type of fuel used, the type and amount of 
oil used, and/or your operating conditions, the exhaust port 
and muffler may become blocked with carbon deposits. If 
you notice a power loss with your gas powered tool, a quali-
fied service technician will need to remove these deposits 
to restore performance.

SPARK ARRESTOR

The  spark  arrestor  must  be  cleaned  or  replaced  every 
25 hours or yearly to ensure proper performance of your 
product. For the location of the spark arrestor and specific 
cleaning instructions, contact your nearest authorized ser-
vice center.

REPLACING AND CLEANING AIR FILTER

See Figures 28 - 29.

For proper performance and long life, keep air filter clean.

Remove the air filter cover by pushing down on the latch 
with your thumb while gently pulling on the cover.   

Remove the filter, clean it in warm soapy water.  Rinse 
and let dry completely. For best performance, replace 
annually.

Reinstall the filter.

Replace the air filter cover by inserting the tabs on the 
bottom of the cover into the slots on the air filter base; 
push the cover up until it latches securely in place.  

Fig. 28

LATCH

PULL COVER 

TO OPEN

TABS ON AIR 

FILTER COVER

SLOTS ON AIR 

FILTER BASE

FILTER

Fig. 29

Summary of Contents for RY52003

Page 1: ...ured 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 in...

Page 2: ...n Maintenance 13 18 n Troubleshooting 19 n Warranty 20 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: ...BARRIER HANDLE UsingtheJ Barrierhandleallowsbettercontrolofthepruner to maximize operator safety PRIMER BULB The priming bulb pumps fuel from the fuel tank to the car buretor This is necessary only wh...

Page 8: ...ully to make sure no breakage or damage occurred during shipping n Do not discard the packing material until you have care fully inspected and satisfactorily operated the tool n If any parts are damag...

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: ...bare surface for starting n Slowly push the primer bulb 5 times n Set the choke lever to the FULL CHOKE position A n Squeeze the throttle trigger fully Do not release until all of the remaining steps...

Page 13: ...l injury Only 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 Figure...

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: ...r or chain Fig 22 REMOVE CAP REPLACE CAP CHAIN OILER TANK 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 spee...

Page 16: ...d have service dealer sharpen chain CUTTING CORNER SIDE PLATE DEPTH GAUGE TOE GULLET HEEL RIVET HOLE TOP PLATE PARTS OF A CUTTER Fig 24 DEPTH GAUGE SETTING Fig 23 HOW TO SHARPEN THE CUTTERS See Figure...

Page 17: ...rk arrestor must be cleaned or replaced every 25 hours or yearly to ensure proper performance of your product For the location of the spark arrestor and specific cleaning instructions contact your nea...

Page 18: ...oline Run engine until it stops n Clean all foreign material from the trimmer Store it in a well ventilated place that is inaccessible to children Keep away from corrosive agents such as garden chemic...

Page 19: ...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 20: ...e amount of time not to exceed 30 days If you have any questions regarding your warranty rights and responsibilities you should contact a Ryobi Technologies Inc Customer Representative at 1 800 860 40...

Page 21: ...Hours or Yearly AIR FILTER ASSY INCLUDES FILTER X X SPARK SCREEN X CARBURETOR ASSY INCLUDES HEAT DAM GASKETS FUEL TANK ASSY INCLUDES FUEL LINES X FUEL CAP X FUEL FILTER IGNITION ASSY INCLUDES SPARK P...

Page 22: ...or repair parts or service simply contact your nearest Ryobi Authorized Service Center Be sure to provide all pertinent facts when you call or visit Please call 1 800 860 4050 for your nearest Ryobi A...

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