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G

RASS

 T

RIMMER

O

PERATOR

'

S

 M

ANUAL

23

S

PECIFICATIONS

MODEL ----------------------------------------------------- GT-231

Length ------------------------------------------------------- 1,520 mm (59.8 in.)

Width -------------------------------------------------------- 310 mm (12.2 in.)

Height ------------------------------------------------------- 395 mm (15.6 in.)

Weight (dry) w/Cutter Head ------------------------------ 4.88 kg (10.8 lb.)

Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine

Bore ---------------------------------------------------------- 32.2 mm (1.27 in.)

Stroke -------------------------------------------------------- 28.0 mm (1.10 in.)

Displacement ----------------------------------------------- 22.8 cc (1.39 cu. in.)

Exhaust ------------------------------------------------------ Spark Arrestor Muffler with catalyst

Carburetor -------------------------------------------------- Zama diaphragm w/purge

Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge

Spark Plug -------------------------------------------------- NGK BPM-8Y  0.65 mm (0.026 in.)

Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)

Fuel/Oil Ratio ----------------------------------------------- 50:1 two-stroke air cooled engine oil

Gasoline ----------------------------------------------------- 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,

more than 10% ethyl alcohol or 15% MTBE.

Oil ------------------------------------------------------------ Power Blend 

TM

 Premium Universal 2-Stroke Oil

Fuel Tank Capacity ---------------------------------------- 0.58 lit. (19.6 US fl. oz.)

Recoil Starter System -------------------------------------- Automatic Recoil Starter

Clutch ------------------------------------------------------- Centrifugal Type

Drive Shaft -------------------------------------------------- 6.35 mm (1/4 in.) Flex Shaft

Rotating Direction ----------------------------------------- Clockwise viewed from top

Cutter Head ------------------------------------------------- Semi-Auto Nylon line head (2-Line) with .080 in. Line capacity

6.5 m (20 ft.)

Handles ----------------------------------------------------- Left - D-Loop w/foamed anti-vibration grip, Right - foamed grip

Shoulder Harness ------------------------------------------ Optional 99944200201

Idle Speed (RPM) ------------------------------------------ 2,750  - 3,250

Wide Open Throttle Speed with

Trimmer Head (RPM) -------------------------------------- 7,400 - 9,400

Summary of Contents for GT-231

Page 1: ...ulesforsafeoperationandinstructionscarefully ECHOprovidesan Operator sManualandaSafetyManual Bothmustbereadandunderstoodfor properandsafeoperation Grass Trimmer Operator s Manual MODEL GT 231 X7502098...

Page 2: ...eir use safer TABLE OF CONTENTS Introduction 2 The Operator s Manual 2 The Safety Manual 2 Safety 3 Manual Safety Symbols and Important Information 3 International Symbols 3 Personal Conditions and Sa...

Page 3: ...RIPTION APPLICATION SYMBOL FORM SHAPE SYMBOL DESCRIPTION APPLICATION SYMBOL FORM SHAPE Read and understand Operator s Manual WEAR EYES EARS AND HEAD PROTECTION FUEL AND OIL MIXTURE FINGER SEVERING SAF...

Page 4: ...g can increase operator fatigue which may lead to heat stroke Schedule heavy work for early morning or late afternoon hours when temperatures are cooler Vibration and Cold It is believed that a condit...

Page 5: ...petitive move ment Do exercises to strengthen the hand and arm muscles Immediately stop using all power equipment and consult a doctor if you feel tingling numbness or pain in the fingers hands wrists...

Page 6: ...missing nuts bolts and screws Tighten and or replace as needed Inspect fuel lines tank and area around carburetor for fuel leaks DO NOT operate unit if leaks are found Inspect shield for damage and e...

Page 7: ...ur unit Make sure the decals are legible and that you understand and follow the instructions on them If a decal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDER INGinstruc...

Page 8: ...above the cutting attachment Helps protect the operator by deflecting debris produced during the trimming operation 9 THROTTLETRIGGER Springloadedtoreturntoidlewhenreleased Duringacceleration presstri...

Page 9: ...___ 1 Safety Manual ___ 1 Shield Assembly ___ 1 LockingTool ___ 1 HardwareBag ___ 1 1 4 20bolt ___ 1 1 4 20 wing nut ___ 1 1 4 20flatwasher ___ 1 Warranty Card Limited Warranty ___ 1 Safety Glasses _...

Page 10: ...t handle location NOTE Front handle is pre installed Repositioning and tightening is all that is required 1 Position front handle E in comfortable operating position and tighten wing nut F The cutting...

Page 11: ...Fuel Requirements Gasoline Use 89 Octane R M 2 mid grade or higher gasoline known to be good quality Gasoline may contain up to 15 MTBE methyl tertiary butyl ether Gasohol containing methyl wood alcoh...

Page 12: ...on a flat area and keep movable attachment parts clear of all obstacles Firmly grasp right hand grip and throttle trigger lockout with left hand and fully depress throttle trigger to wide open positio...

Page 13: ...ntil fuel is visible and flows freely in the clear fuel tank return line Pump bulb an additional 4 or 5 times 3 Recoil Starter Lay the unit on a flat area and keep movable attachment parts clear of al...

Page 14: ...c E d e d n e m m o c e R t r o P t s u a h x E r e d n i l y C n o b r a c e D n a e l C t c e p s n I 3 C I s e r u d e c o r P e c n a n e t n i a M f l e s r u o Y t I o D r e t l i F r i A e c a...

Page 15: ...fits tightly in the air filter cavity is installed with the original side out NOTE Carburetor adjustment may be needed after air filter cleaning replacement See Carburetor Adjustment Section FUEL FILT...

Page 16: ...ING SYSTEM Level2 Tools required CrossHeadScrewdriver 4mmHexWrench 25 or 50 mm 1 or 2 in cleaning brush Parts Required None if you are careful IMPORTANT To maintain proper engine operating temperature...

Page 17: ...se a metal scraper to remove dirt from the cylinder fins 5 Use brush to remove dirt from the cylinder fins 6 Remove grass and leaves from the grid between the recoil starter and fuel tank 7 Assemble c...

Page 18: ...rder to maintain this engine within the emissions durability period ECHO strongly recommends that you return your unit to your ECHO dealer for this important maintenance service CARBURETOR ADJUSTMENT...

Page 19: ...s Required 8 mm Open end wrench screwdriver clean rag Parts Required ECHO LUBETM 8oz P N91014 orLithiumBase Grease 1 Remove plastic shield 2 Loosen bearing housing locating screw A at the top of the h...

Page 20: ...ng you Place index finger between the strands and wind line clockwise follow direc tion of arrow molded in spool tightly and evenly 5 Place ends of line in the two notches D molded in the spool with 1...

Page 21: ...i t c e f e d g u l P n i 6 2 0 0 m m 5 6 o t t s u j d A e c a l p e r r o n a e l C e c a l p e r r o n a e l C g u l p e c a l p e R s n u r e n i g n E r o s e i d t u b t o n s e o d e t a r e l...

Page 22: ...ark 2 Place the stop switch in the OFF position 3 Remove accumulation of grease oil dirt and debris fromexteriorofunit 4 Perform all periodic lubrication and services that are required 5 Tighten all t...

Page 23: ...GasolineandTwo strokeOil Fuel OilRatio 50 1 two stroke air cooled engine oil Gasoline 89 Octane unleaded DO NOT use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Oil PowerBlend...

Page 24: ...Friday Before calling please know the model and serial number of your unit to help your Consumer Product Support Representative WARRANTY REGISTRATION You may register your Echo equipment using the wa...

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