Yard Machines LT31 Operator's Manual
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Yard Machines LT31 Operator's Manual

Yard Machines LT31 Operator's Manual

2-cycle petrol trimmer
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Operator's Manual
LT31 2-Cycle
Petrol Trimmer
IMPORTANT: Read safety rules and instructions carefully before operating equipment.
PRINTED IN U.S.A.
PART NO. 769-00828
(9/03)

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Summary of Contents for Yard Machines LT31

  • Page 1 Operator’s Manual LT31 2-Cycle Petrol Trimmer IMPORTANT: Read safety rules and instructions carefully before operating equipment. PRINTED IN U.S.A. PART NO. 769-00828 (9/03)

  • Page 2: Table Of Contents

    Content Important Safe Operation Practices... 3 Know Your Trimmer ... 6 Assembling Your Trimmer... 7 Operating Your Trimmer... 8 Maintaining Your Trimmer ... 11 Off-Season Storage ... 16 Troubleshooting ... 17 Specifications ... 18 This Operator’s Manual is an important part of your new trimmer. It will help you assemble, prepare and maintain the unit for best performance.

  • Page 3: Section 1: Important Safe Operation Practices

    SECTION 1: IMPORTANT SAFE OPERATION PRACTICES This Symbol Points Out Important Safety Information Which, If Not Followed, Could Endanger The Personal Safety And/or Property Of Yourself And Others. Read And Follow All Instructions In This Manual Before Attempting To Operate Your Cultivator. FailureTo Comply With These Instructions May Result In Personal Injury.

  • Page 4: Save These Instructions

    WHILE OPERATING • Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Operate this unit only in a well ventilated area outdoors. • Wear safety glasses or goggles and ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty.
  • Page 5 SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information. SYMBOL MEANING • SAFETY ALERT SYMBOL Indicates danger, warning or caution.

  • Page 6: Section 2: Know Your Trimmer

    SECTION 2: KNOW YOUR TRIMMER APPLICATIONS As a trimmer: • Cutting grass and light weeds • Edging • Decorative trimming around trees, fences, etc. D-handle Ignition Switch Shaft Tube Line Cutting Blade Cutting Head Guard Cutting Head Starter Rope Grip Shaft Grip Throttle...

  • Page 7: Section 3: Assembling Your Trimmer

    SECTION 3: ASSEMBLING YOUR TRIMMER INSTALLING AND ADJUSTING THE D-HANDLE 1. Push the D-handle down onto the shaft tube so that the handle slants towards the shaft grip, Figure 1. The squared bolt hole in the handle is to the right. 2.

  • Page 8: Section 4: Operating Your Trimmer

    SECTION 4: OPERATING YOUR TRIMMER OIL AND PETROL MIXING INSTRUCTIONS Old and/or improperly mixed fuel is the main reason for improper unit performance. Be sure to use fresh, clean unleaded petrol. Follow the instructions carefully for the proper petrol/oil mixture. Definition of Blended Fuels Today's fuels are often a blend of fuel and oxygenates such as ethanol, methanol, or MTBE (ether).

  • Page 9: Starting Instructions

    STARTING INSTRUCTIONS WARNING: Operate this unit only in a well ventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area. WARNING: Avoid accidental starting. Make sure you are in the starting position when pulling the starter rope, Figure 7. To avoid serious injury, the operator and unit must be in a stable position while starting.

  • Page 10: Holding The Trimmer

    HOLDING THE TRIMMER WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit. Before using the unit, stand in the operating position, Figure 8. Check for the following: • The operator is wearing eye protection and proper clothing •...

  • Page 11: Winding Existing Inner Reel

    SECTION 5: MAINTAINING YOUR TRIMMER NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to an authorized service dealer. MAINTENANCE SCHEDULE These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up.
  • Page 12 NOTE: Split-Line™ can only be used with the inner reel containing the slotted holes. Single line can be used on either type of inner reel. Use Figure 15 to identify the inner reel you have. NOTE: Always use the correct line length when installing trimming line on the unit.
  • Page 13 INSTALLING A PREWOUND REEL 1. Hold the outer spool with one hand and unscrew the bump knob counterclockwise, Figure 11. Inspect the bolt inside the bump knob to make sure it moves freely. Replace the bump knob if damaged. 2. Remove the old inner reel from the outer spool, Figure 12. 3.

  • Page 14: Carburetor Adjustment

    CARBURETOR ADJUSTMENT The idle speed of the engine is adjustable through the air filter/muffler cover, Figure 26. NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments. Check Fuel Mixture Old and/or improperly mixed fuel is usually the reason for the unit not running properly.

  • Page 15: Spark Arrestor Maintenance

    SPARK ARRESTOR MAINTENANCE 1. Remove air filter/muffler cover. Refer to Removing the Air Filter/Muffler Cover. 2. Locate muffler front and the two (2) bolts securing it to the engine, Figure 28. Remove the two (2) bolts using a flatblade screwdriver or 5/16-inch socket or nut driver.

  • Page 16: Section 6: Off Season Storage

    SECTION 6: OFF SEASON STORAGE CLEANING THE UNIT WARNING: To avoid serious personal injury, always turn the unit off and allow it to cool before you clean or perform any maintenance on it. • Use a small brush to clean off the outside of the unit and to keep the air vents free of obstructions.

  • Page 17: Section 7: Trouble Shooting Guide

    SECTION 7: TROUBLE SHOOTING GUIDE ENGINE WILL NOT START CAUSE Empty fuel tank ....... .Fill fuel tank with properly mixed fuel Primer bulb wasn't pressed enough .

  • Page 18: Section 8: Specifications

    SECTION 8: SPECIFICATIONS ENGINE* Engine Type ..............Air-Cooled, 2-Cycle Stroke .

  • Page 19: Section 9: Notes

    SECTION 9: NOTES...
  • Page 20 SECTION 9: NOTES Cont... OPERATOR’S MANUAL PART NO. 769-00828 7/03 PRINTED IN THE USA...

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Lt31c

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