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8

MAINTENANcE

hOW TO ShARPEN ThE cUTTERS

See Figures 20 - 23.

WARNING:

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

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.

 

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 5/32 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.

 

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.

cAUTION:

A dull or improperly sharpened chain will require exces

-

sive engine speed for cutting, which may result in severe 
engine damage.

ATTAchING ThE STORAGE hANGER

See Figure 24.
There are two ways to hang the attachment for storage.

  To use the hanger cap, push in the button and place the 

hanger cap over the end of the attachment shaft. Slightly 
rotate the cap from side to side until the button locks into 
place.

  The secondary hole in the attachment shaft can be used 

for hanging purposes as well.

STORING ThE ATTAchMENT

  Clean  the  attachment  thoroughly  and  lubricate  before 

 storing. 

  Store the attachment in a dry, well-ventilated place that 

is inaccessible to children. 

  Keep away from corrosive agents such as garden chemi-

cals and de-icing salts.

  Always place the chain guard on the cutting blade before 

storing or when the attachment is not in use.

Problem

Possible cause

Solution

Bar  and  chain  running  hot  and 
 smoking.

Check  chain  tension  for  overtight 
condition.

Chain oil tank empty.

Tension chain. Refer to 

chain Ten-

sion

 earlier in this manual.

Check oil tank.

Motor runs, but chain is not  rotating.

Chain tension too tight.

 
Check guide bar and chain  assembly.

 
Check  guide  bar  and  chain  for 
 damage.

Retension  chain,  Refer  to 

chain 

Tension

 earlier in this manual.

Refer  to 

Replacing  the  Bar  and 

chain

 earlier in this manual.

Inspect  guide  bar  and  chain  for 
damage.

TROUBLEShOOTING

Summary of Contents for APR04A

Page 1: ...and 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 r...

Page 2: ...ich was not provided with the product or identified as appropriate for use with this product in the operator s manual Avoid dangerous environments Do not use the attachment in damp or wet locations Do...

Page 3: ...d safer at the rate for which it is designed Do not use on a ladder or unstable support Stable foot ing on a solid surface enables better control of the tool in unexpected situations Never let anyone...

Page 4: ...result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Without Safety Alert Symbol Indicates a situat...

Page 5: ...ur left shoulder and attach shoulder strap clip to strap hanger Adjust by sliding the front clip up or down NOTE When properly adjusted the power head should be supported by the shoulder strap about h...

Page 6: ...t by squeezing the throttle trigger Keep the engine at full throttle the entire time you are cutting Make a shallow first cut 1 4 of limb diameter on the underside of the limb close to the main limb o...

Page 7: ...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 c...

Page 8: ...A cold chain is correctly tensioned when there is no slack on the underside of the guide bar and the chain is snug but can be turned by hand without binding The chain must be re tensioned whenever the...

Page 9: ...h may result in severe engine damage ATTACHING THE STORAGE HANGER See Figure 24 There are two ways to hang the attachment for storage To use the hanger cap push in the button and place the hanger cap...

Page 10: ...results in required replacement during warranty period Unless specifically provided under applicable law this warranty does not cover transportation cost or consumable items such as fuses This limited...

Page 11: ...Itterpark 4 D 40724 Hilden DEUTSCHLAND Tel 49 0 2103 2958 0 Fax 49 0 2103 2958 29 RYOBI TECHNOLOGIES GMBH Vertriebsb ro sterreich Schinitzgasse 13 A 8605 Kapfenberg Tel 43 0 3862 23590 0 Fax 43 0 3862...

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