Homelite UT70127 manual Idle Speed Screw Needle

Page 21

TROUBLESHOOTING

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

 

 

String will not advance:

1.

String welded to itself.

1.

Lubricate with silicone spray.

 

2.

Not enough string on spool.

2.

Install more string. Refer to “String Replacement”

 

 

 

 

earlier in this manual.

 

3.

String worn too short.

3.

Pull strings while alternately pressing down on and

 

 

 

 

releasing spool retainer.

 

4.

String tangled on spool.

4.

Remove string from spool and rewind. Refer to “String

 

 

 

 

Replacement” earlier in this manual.

 

5.

Engine speed too slow.

5.

Advance string at full throttle.

 

 

 

 

 

 

Grass wraps round shaft

1.

Cutting tall grass at

1. Cut tall grass from the top down.

housing and string

 

ground level.

 

 

 

 

head:

2.

Operating trimmer at

2. Operate trimmer at full throttle.

 

 

part throttle.

 

 

 

 

 

 

 

 

 

 

 

Spool retainer hard to

Screw threads dirty or damaged.

turn:

 

Clean threads and lubricate with grease - if no improve- ment, replace spool retainer.

1.

Operating trimmer at

Oil drips from silencer:

part throttle.

2.

Check oil/fuel mixture.

3.

Air filter dirty.

4.

Carburettor requires

 

adjustment.

1.Operate trimmer at full throttle.

2.Use fresh fuel and the correct 2-cycle oil mix.

3.Clean per instruction in Maintenance Section.

4.Turn “H” needle clockwise 1/16 - 1/8 turn. See Figure 27.

NOTE: The carburettor adjustment needle(s) are equipped with plastic cap(s) which prevent anticlockwise rotation from the original factory adjustment. If your unit exhibits specific performance problem(s) where the Troubleshooting Section recommends an anticlockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken to a factory-authorised service dealer for repair. In most cases, the needed adjustment is a simple task for the factory-trained service representative.

IDLE SPEED

SCREW

“L” LO

NEEDLE

“H” HIGH NEEDLE

Fig. 27

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Contents Save this Manual for Future Reference OPERATOR’S ManualSafety Table of ContentsSpecific Safety Rules for Brushcutter and Blade USE Specific Safety Rules for Trimmer USESymbol Name Explanation SymbolsVibration level racing Technical DataUnpacking FeaturesInstructions Packing List for OWNER’S KITAttaching the Power Head to the Trimmer Attachment AssemblyRemoving the Attachment from the Power Head Attaching the Storage HangerFront Handle Attaching the Shoulder StrapFront Handle Clamp Quick Release TAB Bolt Rear Housing Silencer Guard AssemblyGrass Deflector and Blade Guard USE TorqueBlade Guard Drive Connector Spool RetainerGrass Deflector Converting from Trimmer to BrushcutterInstalling the String Head Installing the BladeConverting from Brushcutter to Trimmer Removing the BladeOperation Fuel and RefuellingOperating the Trimmer Advancing the String Cutting TipsGrass Deflector Line Trimming CUT- OFF Blade Operating the Brushcutter TRI-ARC BladeCutting Technique Blade Starting and Stopping Ignition SwitchTo Start a Cold Engine To Start a Warm EngineSpool Replacement EZ Line TAP Advance System MaintenanceNEW PRE-WOUND Spool See Figures 18Blade Protector String ReplacementSlot Spring Spool Arrows on Anchor Hole First StringReplacing and Cleaning AIR Filter Cleaning the Exhaust Port and SilencerSpark Arrester See Figures 25Fuel CAP Storage 1 Month or LongerSparking Plug Troubleshooting Idle Speed Screw Needle Safety Directive WarrantyGuarantee Statement Rtsa / Rtuk / RTG Sound Pressure Sound Power Vibration Model Model noPage Ryobi Technologies GmbH
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