background image

17

MAINTENANCE

CUTTING CORNER

SIDE PLATE

DEPTH GAUGE

TOE

GULLET

HEEL

RIVET HOLE

TOP PLATE

PARTS Of A CUTTER

Fig. 4

HOW TO SHARPEN THE CUTTERS

See Figures 24 - 27.

Be careful to file all cutters to the specified angles and to 
the same length, as fast cutting can be obtained only when 
all cutters are uniform.

 

Using light but firm pressure, stroke towards the front 
corner of the tooth. Lift file away from the steel on each 
return stroke.

 

Put a few firm strokes on every tooth. File all left hand 
cutters in one direction. Then move to the other side and 
file the right hand cutters in the opposite direction.  Oc-
casionally remove filings from the file with a wire brush.

Fig. 5

Fig. 6

 

Tighten the chain tension enough that the chain does not 
wobble. Do all of your filing at the mid-point of the bar.  
Wear gloves for protection.

 

Use a 5/3 in. diameter round file and holder.

 

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. 7

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  lubricant  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 qualified service technician will need to remove these 
deposits to restore performance.

SPARK ARRESTOR

The spark arrestor must be replaced every 50 hours or yearly 
to ensure proper performance of the product. Spark arres-
tors may be in different locations depending on the model 
purchased. Please contact the nearest service dealer for the 
location of the spark arrestor for your model.

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...

Reviews: