McCulloch MT3075 User Manual Download

Page: 1 / 26

PN 9096-334601

Printed in Taiwan

Models : MT3075/ MT3090/MT30775/ MT30790

WARNING • PLEASE READ

For your own safety please read this manual before attempting to operate your new unit. Failure to fol-
low instructions can result in serious personal injury. Spend a few moments to familiarize yourself with
your trimmer before each use.

MT3075

MT3090

MT30775

MT30790

USER MANUAL

Gas String Trimmers/Brushcutters

U.S.A. Imported by:
MTD LLC
P.O. Box 361131
Cleveland, OH 44136-0019

Canada Imported by / Importé par:
MTD PRODUCTS
97 Kent Avenue
Kitchener, ON
CANADA N2G 4J1

Made in Taiwan / Fabriquè à Taïwan/ Hecho en Taiwan

STOP

ARRÊT

ALTO

For problems or questions, DO NOT return

this product to the store. Contact your

Customer Service Agent .

En cas de problèmes ou pour des questions,

NE PAS retourner ce produit au point de vente. S'adresser

au préposé du Service à la clientèle en composant.

Para problemas o preguntas, NO devolver este producto a la tienda

Contacte a su Agente de Servicio al Cliente.

U.S.A. 1-866-747-9816

CANADA 1-800-668-1238

For Consumer Assistance Please Call

L'Aide Du Consommateur Necessitez S'il Vous Plait

Para La Ayuda Del Consumidor Llame Por Favor

Summary of Contents for MT3075

Page 1: ...own safety please read this manual before attempting to operate your new unit Failure to fol low instructions can result in serious personal injury Spend a few moments to familiarize yourself with your trimmer before each use MT3075 MT3090 MT30775 MT30790 USER MANUAL Gas String Trimmers Brushcutters ...

Page 2: ... OR SERVICE CONTACT THE NEAR EST AUTHORIZED SERVICE CENTER LOCATE YOUR NEAREST SERVICE CENTER BY CALLING THE TOLL FREE NUMBER IN THIS MANUAL TABLE OF CONTENTS 1 GENERAL INFORMATION 2 1 1 Specifications 2 GENERAL IDENTIFICATION 3 2 1 General Identification 2 2 Safety Features 3 SAFETY PRECAUTIONS 4 3 1 What To Do 3 2 Brush Grass Blade Safety Precautions 3 3 What No To Do 3 4 International Symbols 4...

Page 3: ...0775 MT30790 14 3 lbs 6 5 kg Fuel Capacity 18 6 oz 550 ml Drive Shaft Length MT3075 MT3090 52 132cm MT30775 MT30790 26 26 66cm 66cm Cutting Swath Twin Line Head 17 43cm Blade MT3090 MT30790 9 23cm Handle MT3075 P Handle MT30775 MT3090 MT30790 J Handle Carburetor Primer Diaphragm Type Ignition Electronic Spark Plug Champion DJ8J or equivalent Drive Clutch 2 ...

Page 4: ...ers on preceding page to help you locate the safety fea ture 5 BLADE GUARD must be installed to prevent debris from spraying up into the operator and to protect the operator form rotating blade 15 MUFFLER SHIELD helps prevent hands body and or combustible materials from making contact with a hot muffler 17 SPARK ARRESTER SCREEN retains carbon and other flammable particles over 0 023 6 mm in size f...

Page 5: ... build up 14 OPERATION OF EQUIPMENT should always be restricted to mature and properly instructed individu als 3 2 BRUSH GRASS BLADE SAFETY PRE CAUTIONS 1 FOLLOW ALL WARNINGS and instructions regarding operation and blade installation 2 BLADE CAN VIOLENTLY THRUST AWAY FROM MATERIAL IT CANNOT CUT Blade thrust can cause amputation of arms or legs Keep people and animals 50 feet 15 meters away in all...

Page 6: ...hance the performance and maximize the safe operation of our products Failure to do so may cause poor performance and possible injury Use only the stringhead supplied with this product Do not use any other cutting attachment Use of such attachments will void your factory warranty and could result in serious bodily injury Model MT3075 MT3090 2 SAFETY PRECAUTIONS Use of these personal safety items i...

Page 7: ...ghten with 2 screws D 3 Install the J handle A on the middle clamp housing then put the upper clamp C over J handle and tighten the other 2 screws D 4 3 BLADE GUARD INSTALLATION MT3075 MT30775 1 Remove gear collar A from the threaded gear housing shaft Figure 4 3A 2 Place the shield on the gear housing and align the mounting holes Insert screws B found in the hard ware bag as shown in illustration...

Page 8: ...T3090 MT30790 1 Turn the unit over and with screws found in the hard ware bag install the debris shield A as shown Figure 4 6A CAUTION Debris shield must be installed to properly dispense cutter line and protect operator REMINDER Be sure to remove holding pin before starting unit 7 4 ASSEMBLY INSTRUCTIONS 4 5A A B MT3075 MT30775 B MT3090 MT30790 A 4 5B MT3075 MT30775 MT3090 MT30790 C C 4 5C MT3075...

Page 9: ...hree screws J Remove the shield A Insert the holding pin into the gear collar slot to prevent the collar from turning while removing the stringhead turn CLOCKWISE Figure 4 7B 3 Leave the holding pin B in place Figure 4 7C WARNING Be sure the blade center hole is properly sized to the collar arbor 4 Install blade D with teeth pointing CLOCKWISE as shown in the illustration Figure 4 7C 5 Install fla...

Page 10: ...3 Turn the knob clockwise to tighten Fig 4 8C CAUTION The release button must be in the primary hole and the knob securely tightened before operating this unit All attachments are designed to be used in the primary hole unless otherwise indicated in the specific attachments operators manual If the incorrect hole is used it could result in injury or damage to the unit NOTE Turn attachment rotating ...

Page 11: ... cycle oil product with a recom mended mixing ratio of 100 1 If insufficient lubrication is the cause of engine damage it voids the manufacturer s engine warranty 5 2 MIXING FUEL Add oil to an approved fuel container followed by the gaso line to allow incoming gasoline to mix with oil Shake con tainer to ensure thorough mix Lack of lubrication voids engine warranty Gasoline and oil must be mixed a...

Page 12: ... from the unit before starting engine 6 2 STARTING A COLD ENGINE Put unit on the ground do not depress trigger before starting see fig 6 2E NOTE To minimize load on engine during starting and warm up trim excess cutter line to 5 13cm Figure 6 2A 1 Move on off ignition switch to the RUN I position Figure 6 2B 2 Your unit is designed with a 3 position choke FULL CHOKE PARTIAL CHOKE and RUN Move chok...

Page 13: ...igure 6 3A 6 4 WARM ENGINE START 1 Move ignition switch to the RUN I position 2 Place choke in PARTIAL CHOKE position Figure 6 4A 3 Grasp throttle handle firmly depress safety trigger and squeeze throttle trigger to FULL position 4 Pull starter rope briskly until engine starts but no more than 6 times Keep throttle at FULL position until engine runs smoothly Move choke lever to 3 position 5 If eng...

Page 14: ...ease The knife in debris shield will trim excess line Figure 7 2A CAUTION Be sure engine is off and string head has stopped before sttempting to remove weed wrap Periodically remove weed wrap to prevent overheating the drive shaft Weed wrap occurs when strands of weeds become entangled around the shaft beneath the debris shield Figure 7 2B This con dition prevents the shaft from being properly coo...

Page 15: ...h a blade check to ensure it is properly installed Follow all warnings listed in the blade safety precautions section in this manual Always wear eye protection and protective clothing when cutting with a blade Always use the harness for blade operations 7 5 USING WEED BLADES SCYTHING WEEDS Scything refers to cutting by moving the blade from side to side in a level arc It is most effective with gra...

Page 16: ...IR FILTER FUEL FILTER SPARK PLUGO SPARK ARRESTER SCREEN FUEL HOSES BLADE INSPECT TIGHTEN CLEAN OR REPLACE REPLACE CLEAN ADJUST REPLACE CLEAN OR REPLACE INSPECT REPLACE AS REQUIRED REPLACE AS REQUIRED INSPECT Recommended for maintenence by an authorized service center technician using Genuine Factory replacement parts ...

Page 17: ...each end of the line through an eyelet J in the housing F Figure 8 1E 8 Lower the spool into the housing F while feeding the line through the eyelets J Insure the spring seats itself into the housing Figure 8 1E 9 Once the spool is in place apply pressure on the spool compressing the spring Pull each end of the line B sharply to unlock the line from the slots Figure 8 1F 10 Continue to apply press...

Page 18: ...nit and store in approved container before starting this procedure Open fuel cap slowly to release any pressure which may have formed in fuel tank NOTE Keep vent A on fuel cap clean of debris Figure 8 3A Fuel Filter 1 Completely remove fuel cap from fuel tank B to be able to remove fuel filter C from tank Figure 8 3B 2 Pull filter D off with a twisting motion Figure 8 3C 3 Replace fuel filter D Fi...

Page 19: ...e direction only 8 8 STORING A UNIT Failure to follow these steps may cause varnish to form in the carburetor and difficult starting or permanent damage following storage 1 Perform all the general maintenance recommended in the Maintenance Section of your User Manual 2 Clean exterior of engine drive shaft assembly debris shield and stringhead 3 Drain fuel from the fuel tank 4 After fuel is drained...

Page 20: ...er Use properly mixed fuel 40 1 mixture PROBLEM Unit won t start or starts but will not run Unit starts but engine has low power Engine hesitates No power under load Runs erratically Smokes excessively PROBABLE CAUSE Incorrect starting procedures Incorrect carburetor mixture adjustment setting Fouled spark plug Fuel filter plugged Incorrect lever position on choke Dirty spark arrester screen Dirty...

Page 21: ...KNIFE 17 9131 334501 CIRCLLP 9157 334501 SEAL 6NGB 10 24 NUT 18 9115 334501 PISTON PIN 9CB 32 C RING 9228 334510 HANDLE ASS Y 19 9290 334501 PISTON 9169 334501 FLYWHEEL 6SDABB04 12 SCREW 20 9067 334501 AXLS COVER 9228 334506 FUEL TANK ASS Y 9068 332103 HOUSING HANDLE 21 9NR KV9129 8 NEEDLE BEARING 9SKKBY05 18 SCREW 9010 332103 WIRE ASS Y SWITCH 22 6221 830301 KEY 9NHC 08 NUT 9010 334501 THROTTLE C...

Page 22: ...EL TANK ASS Y 6NGB 10 24 NUT 19 9290 334501 PISTON 9SKKBY05 18 SCREW 9228 334510 HANDLE ASS Y 20 9067 334501 AXLS COVER 9NHC 08 NUT 6SDABB04 12 SCREW 21 9NR KV9129 8 NEEDLE BEARING 9WFB 06 15 WASHER 9068 332103 HOUSING HANDLE 22 6221 830301 KEY 9176 GP0101 CLUTCH WITH SPRING 9010 332103 WIRE ASS Y SWITCH 23 9228 334502 CRANK ROD ASS Y 9WWB 08 WAVE PLATE 9010 334501 THROTTLE CABLE 24 9288 334501 CH...

Page 23: ...9042 330301 SLEEVE 18 9115 334501 PISTON PIN 52 9WFB 06 15 WASHER 75 2 9NAZ 10 NUT 19 9290 334501 PISTON 53 9176 GP0101 CLUTCH WITH SPRING 75 3 9111 330601 FLANGE SPINDLE 20 9067 334501 AXLS COVER 54 9WWB 08 WAVE PLATE 75 4 9131 330304 COLLAR 21 9NR KV9129 8 NEEDLE BEARING 55 9214 GP0101 SCREW 75 5 9124 330309 SPLINE SLEEVE 22 6221 830301 KEY 56 9228 334508 TRANSMISSION SUPPORT ASS Y 75 6 9111 330...

Page 24: ...5 1 9042 330301 SLEEVE 18 9115 334501 PISTON PIN 52 9WFB 06 15 WASHER 75 2 9NAZ 10 NUT 19 9290 334501 PISTON 53 9176 GP0101 CLUTCH WITH SPRING 75 3 9111 330601 FLANGE SPINDLE 20 9067 334501 AXLS COVER 54 9WWB 08 WAVE PLATE 75 4 9131 330304 COLLAR 21 9NR KV9129 8 NEEDLE BEARING 55 9214 GP0101 SCREW 75 5 9124 330309 SPLINE SLEEVE 22 6221 830301 KEY 56 9228 334508 TRANSMISSION SUPPORT ASS Y 75 6 9111...

Page 25: ......

Page 26: ...rn thisproducttothestore Contactyour CustomerServiceAgent Encasdeproblèmesoupourdesquestions NEPASretournerceproduitaupointdevente S adresser aupréposéduServiceàlaclientèleencomposant Paraproblemasopreguntas NOdevolveresteproductoalatienda ContacteasuAgentedeServicioalCliente U S A 1 866 747 9816 CANADA 1 800 668 1238 For Consumer Assistance Please Call L Aide Du Consommateur Necessitez S il Vous ...

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