Ryobi RY52604 HOW to Sharpen the Cutters, Spark Arrestor, Cleaning AIR Filter Screen, Fuel CAP

MAINTENANCE

nWood chips are small and powdery

nChain must be forced through the wood during cutting

nChain cuts to one side

During maintenance of the chain, consider the following:

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

nDepth 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.

nIf 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.

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.

nTighten 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.

nUse a 5/32 in. diameter round file and holder.

nKeep the file level with the top plate of the tooth. Do not let the file dip or rock.

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

nPut 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. Occasionally remove filings from the file with a wire brush.

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.

CLEANING AIR FILTER SCREEN

See Figure 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.

Brush the air filter screen lightly to clean.

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.

NOTE: For best performance, replace annually.

FUEL CAP

WARNING:

A leaking fuel cap is a fire hazard and must be replaced immediately.

The fuel cap contains a non-serviceable filter and a check valve. A clogged fuel filter will cause poor engine perfor- mance. If performance improves when the fuel cap is loos- ened, check valve may be faulty or filter clogged. Replace fuel cap if required.

SPARK PLUG REPLACEMENT

This engine uses a Champion RCJ6Y with .025 in. electrode gap. Use an exact replacement and replace annually.

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

STORING THE PRODUCT

See Figure 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-icing salts.

Abide by all ISO and local regulations for the safe storage and handling of gasoline.

n Always place the scabbard on the saw bar when transporting or storing the pruner. The scabbard is a snug fit and must be attached very carefully due to the sharp teeth on the saw chain. This is best done by grasping the scabbard at one end, in the center portion of the scabbard, and carefully sliding it over the chain as shown. Use caution to avoid the sharp teeth of the chain.

NOTE: The saw chain is very sharp. Always wear protective gloves when handling the chain.

12 — English