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1

OPERATION

Fig. 7

CUTTING GUIDE

Fig. 6

NOTE:  For second and final cuts (from top of limb or branch), 
hold front cutting guide against the limb being cut. This will 
help steady the limb and make it easier to cut. Allow chain to 
cut for you; exert only light downward pressure. If you force 
the cut, damage to the bar, chain, or engine can result.

  Release the trigger as soon as the cut is completed, allow-

ing the engine to idle. If you run the pruner at full throttle 
without a cutting load, unnecessary wear or damage can 
occur to the chain, bar, and engine.

Failure to follow proper cutting procedures will result in the 
bar and chain binding and becoming pinched or trapped in 
the limb. If this should happen: 

  Stop the engine. 

  Loosen the knob on the coupler. 

  Depress the button on the shaft; twist and pull the shafts 

to separate the pruner from the power head. 

  If the limb can be reached from the ground, lift the limb 

while  holding  the  attachment.  This  should  release  the 
“pinch” and free the pruner. 

  If the pruner is still trapped, call a professional for as-

sistance.

LIMBINg AND PRUNINg 

See Figures 7 - 8.

This unit is designed for trimming small branches and limbs 
up to 6 in. in diameter. For best results, observe the follow-
ing precautions.

  Plan the cut carefully. Be aware of the direction in which 

the branch will fall.

  Branches may fall in unexpected directions. Do not stand 

directly under the branch being cut.

  The  most  typical  cutting  application  is  to  position  the 

unit at an angle of 60° or less, depending on the specific 
situation, as shown. As the angle of the pruner shaft to 
ground  increases,  the  difficulty  of  making  the  first  cut 
(from the underside of limb) increases. 

  Remove long branches in several stages.

  Cut lower branches first to allow the top branches more 

room to fall.

  Work slowly, keeping both hands on the saw with a firm 

grip. Maintain secure footing and balance.

  Keep the tree between you and the chain while limbing.  

Cut from side of tree opposite branch you are cutting.

  Do not cut from a ladder; this is extremely dangerous.  

Leave this operation for professionals.

  Do not make the flush cut next to the main limb or trunk 

until you have cut off the limb further out to reduce the 
weight. Following proper cutting procedures will prevent 
stripping the bark from the main member. 

  Do not use the pruner for felling or bucking.

  To prevent electrocution, do not operate within 50 ft. of 

overhead electrical lines.

  Keep bystanders at least 50 ft. away.

Fig. 8

60° MAXIMUM

Summary of Contents for RY52504

Page 1: ...nd manufactured to our 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 ris...

Page 2: ...ntenance 14 18 Troubleshooting 19 Warranty 20 22 Parts Ordering Service 24 TABLE OF CONTENTS INTRODUCTION This product has many features for making its use more pleasant and enjoyable Safety performan...

Page 3: ...fler or cylinder of the unit These parts get hot from operation Failure to heed this warning could result in possible serious personal injury Carry the chain saw with the engine stopped the guide bar...

Page 4: ...s dry clean and free of lubricant or fuel mixture Shut off the engine and make sure the cutting attachment has stopped before setting the unit down To prevent electrical shock or serious personal inju...

Page 5: ...this equipment Safety Footwear Wear non slip safety footwear when using this equipment Gloves Wear non slip heavy duty protective gloves when handling the pole pruner attachment and the saw chain Mov...

Page 6: ...rdous 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 serious person...

Page 7: ...mps 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 shoulder strap helps support...

Page 8: ...8 in x 3 4 in 8 oz Bar and Chain Lubricant Bottle of 2 cycle Lubricant Shoulder Strap Hanger with mounting hardware Shoulder Strap J Handle Assembly J Handle Top and Bottom Clamp Short Bolt Long Bolt...

Page 9: ...bar and chain lubrication Add bar and chain lubricant in the bar lube reservoir before starting the engine of the power head Refer to Automatic bar and chain lubrication in the Maintenance section of...

Page 10: ...mum octane rating requirements Before us ing an oxygenated fuel try to confirm the fuel s contents Some states provinces require this information to be posted on the pump The following are the EPA app...

Page 11: ...on the unit whenever the engine is running Use your right hand to firmly grip the rear handle while your left hand has a firm grip on the front handle n Hold unit firmly with both hands Always keep y...

Page 12: ...nd limbs up to 6 in in diameter For best results observe the follow ing precautions n Plan the cut carefully Be aware of the direction in which the branch will fall n Branches may fall in unexpected d...

Page 13: ...ce 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 to run for 6 10 seconds n Squeeze trigger lock and throt...

Page 14: ...ns should be performed by competent chain saw service personnel For example if improper tool is used to hold the flywheel in order to remove the clutch structural damage to the flywheel could occur an...

Page 15: ...r tension 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 durin...

Page 16: ...ten securely n Check and refill the bar lube reservoir every time the engine is fueled NOTE Do not use dirty used or otherwise contaminated lubricant Damage may occur to the oil pump bar or chain Fig...

Page 17: ...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 sharpened chain can cause excessive...

Page 18: ...30 Clean all foreign material from the product Store idle unit indoors in a dry well ventilated area that is inaccessible to children Keep away from corrosive agents such as garden chemicals and de ic...

Page 19: ...ntact a servicing dealer Engine starts but will only run at high speed at half choke Carburetor requires adjustment Contact a servicing dealer Engine does not reach full speed and emits excessive smok...

Page 20: ...does not extendtorepairsmadenecessarybynormalwearorbythe use of parts or accessories which are either incompatible with the ryobi brand outdoor product or adversely affect its operation performance o...

Page 21: ...interpreted as follows Any warranted part that is not scheduled for replacement as required in the Emissions Maintenance Schedule and Warranty Parts List set forth below is warranted for two years If...

Page 22: ...RRANTED FOR TWO YEARS OR FOR THE PERIOD OF TIME PRIOR TO THE PARTS FIRST SCHEDULED REPLACEMENT WHICHEVER COMES FIRST this product was manufactured with a catalyst muffler Congratulations You have made...

Page 23: ...23 NOTES...

Page 24: ...rts please obtain your model and serial number from the product data plate MODEL NUMBER SERIAL NUMBER How to obtain Replacement Parts Replacement parts can be purchased online at www ryobitools com or...

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