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Lumag GF450 Operator's Manual
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Lumag GF450 Operator's Manual

Petrol trencher
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Distribution Limited
Petrol Trencher
Operator's Manual
GF450
FOR YOUR SAFETY
READ AND UNDERSTAND THE ENTIRE MANUAL
BEFORE OPERATING THIS MACHINE

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Summary of Contents for Lumag GF450

  • Page 1 Distribution Limited Petrol Trencher Operator’s Manual GF450 FOR YOUR SAFETY READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING THIS MACHINE...
  • Page 3 For the warranty to be valid the Warranty Registration Form must be completed and returned to Lumag Distribution Limited within 14 days of the purchase, together with a copy of the purchase invoice. We will use your email to confirm that we have received the completed Warranty Registration Form and contact you about any errors or omissions on the form.
  • Page 5 All Other Moving Parts & Lubricate X (2) Cables 1 – First service only, 2 = Should be carried out by your Lumag Dealer, 3 = May need to be done more often in dusty areas & 4 = Replace paper element only...

  • Page 8: Table Of Contents

    Table of Contents PART I: General Safety Rules ......................2 Table of Contents PART II: Familiar with Your Trencher ....................7 PART III: Operating the Trencher ..................... 9 PART IV: Maintaining Your Trencher ..................... 15 PART V: Troubleshooting and Parts List ..................17 Conventions used in this manual WARNING This indicates a hazardous situation, which, if not avoided, could result in death or...

  • Page 9: Part I: General Safety Rules

    Part I: General Safety Rules PART I: General Safety Rules Safety Labels May Be Found on Your Unit...
  • Page 10 Part I: General Safety Rules WARNING This machine can cause serious injury to the operator and bystanders. The warning and safety instructions in this manual must be followed to provide reasonable safety and efficiency in using and storing. The operator is responsible for following the warnings and instructions in this manual and the trencher.
  • Page 11 Part I: General Safety Rules Before using the Trencher NOTICE A． ． ． ． Operators must be fully trained before using this machine. B． ． ． ． User Manual is read and understood. C． ． ． ． Blades are in good condition and secure. All blades are sharpened or replaced in sets.
  • Page 12 Part I: General Safety Rules children will remain where you last saw them. Always follow these precautions: A. Keep children and pets at least 50 feet from the working area and ensure they are under the watchful care of a responsible adult. Be alert and turn the machine off if children or pets enter the work area.
  • Page 13 Part I: General Safety Rules The muffler and engine become very hot and can cause a severe burn; do not touch. General Safety WARNING Operating this Trencher safely is necessary to prevent or minimize the risk of death or serious injury. Unsafe operation can create a number of hazards for you. Always take the following precautions when operating: A.

  • Page 14: Part Ii: Familiar With Your Trencher

    Part II: Familiar with Your Trencher PART II: Familiar with Your Trencher It may be helpful to familiarize yourself with the controls and features of the Trencher. If you have any question, please contact the dealers in your area.
  • Page 15 Part II: Familiar with Your Trencher TECHNICAL SPECIFICATIONS PARAMETER SPECIFICATION Model GF-450 Start Recoil Start Engine LONCIN G200F 4,0 kW four strokes, 3600rpm Power Gasoline/petrol Trench Capacity 60 m/hour Trench Width 100 mm Trench Depth 150,250,340,450 mm Blade 21 carbide alloy blades Chain Length 1600mm Chain Speed(Max)

  • Page 16: Part Iii: Operating The Trencher

    Part III: Operating the Trencher PART III: Operating the Trencher It may be helpful to better familiarize yourself with the features of your Trencher before beginning the steps outlined in this chapter. CAUTION A. Read and understand all instructions, safety precautions, and/or warnings listed in “PART I: General Safety Rules”...
  • Page 17 Part III: Operating the Trencher Ref.No. Description Ref.No. Description main frame lower handle cotter pin angle arm shift handle and spring M8*45 hexagon bolt M8 bolt M8*20 hexagon bolt upper handle Coil fixation M16 bolt a. Secure lower handle(49) to the main frame(1) tightly. b.
  • Page 18 Part III: Operating the Trencher a. Plug chain adapter(13) to the chain axle(2); b. Hold the chain(6) around chain adapter(13) and axle(2), then secure two head of the chain with chain pin(4) and chain lock(3); c. Secure bolt(55) until the chain is tight enough; d.
  • Page 19 Part III: Operating the Trencher Trenching Be sure the digging chain is not turning when the engine is at an idle. Be sure the engine is off or at an idle before moving the trencher at the job site. Figure 1 WORK POSITION TRENCH DEPTH Depth “0”...
  • Page 20 Part III: Operating the Trencher 4. Using an intermittent pulling action, pull the trencher toward you 4 to 6 inches then relax your pull, allowing the trencher to again reach the chosen depth. 5. Repeat this action until you have finished the job. The wheel lock will aid you in this operation by helping to hold the trencher in position until the next motion is started.
  • Page 21 Part III: Operating the Trencher Fuel Safety WARNING A. Refuel outdoors and where no sparks and flames. B. Store fuel in a container approved for gasoline. C. Do not smoke or allow smoking near fuel or the trencher or while using the trencher. D.

  • Page 22: Part Iv: Maintaining Your Trencher

    Part IV: Maintaining The Thencher PART IV: Maintaining Your Trencher Regular maintenance is the way to ensure the best performance and long life of your machine. Please refer to this manual and the engine manufacturer's user manual for maintenance procedures. Maintenance Safety NOTICE A.
  • Page 23 Part IV: Maintaining The Thencher Lubrication Recommended engine oil 4-stroke gasoline engine oil SF under API service classification or SAE10W-30(equivalent to SG class). NOTICE All Bearings of Trencher are sealed units and should have sufficient lubricant to last the life of your machine with normal use.

  • Page 24: Part V: Troubleshooting And Parts List

    Part VI: Troubleshooting and Parts List PART V: Troubleshooting and Parts List Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If you continue to experience problems, contact the dealers in your area. WARNING Before performing any maintenance procedure or inspection, stop the engine, wait five minutes to allow all parts to cool.
  • Page 25 Part VI: Troubleshooting and Parts List Explosion View and Parts List 1. Chain System Ref.No. Description Ref.No. Description main frame gear cap chain axle plate chain spacer chain lock 6204 bearing cotter pin front gear blade M20 nut chain chain adapter M20 bolt chain cover...
  • Page 26 Part VI: Troubleshooting and Parts List 2. Gear System Ref.No. Description Ref.No. Description main frame taper bearing flange spacer chain axle plate taper bearing upper part ridge taper bearing base ridge spacer 70 seal back gear 72 outer circlip gear axle taper bearing spacer 8*7 keyway gear wheel...
  • Page 27 Part VI: Troubleshooting and Parts List 3. Drive System Ref.No. Description Ref.No. Description main frame pulley gear wheel 5*5 keyway drive chain pulley axle clutch bearing belt bearing cover belt cover...
  • Page 28 Part VI: Troubleshooting and Parts List 4. Depth Control System Ref.No. Description Ref.No. Description main frame M8 bolt chain axle plate shift deck cotter pin shift handle shift rod shift handle spring Depth control handle...
  • Page 29 Part VI: Troubleshooting and Parts List 5. Main Frame Ref.No. Description Ref.No. Description main frame lower handle cotter pin 20 washer handle cover wheel throttle cable butter bean upper handle angle arm M16 bolt Handle of flameout switch...
  • Page 30 Part VI: Troubleshooting and Parts List 6. Ratchet Assembly Ref.No. Description Ref.No. Description cotter pin M10 nut M20 bolt halt frame M12 bolt spring M12 nut M10 nut ratchet wheel M10 bolt M10 headed screw...
  • Page 31 Part VI: Troubleshooting and Parts List Part List: Ref.No. Description Ref.No. Description main frame pulley axle chain axle plate bearing chain lock bearing cover cotter pin shift handle blade shift handle spring chain M8 bolt M20 bolt shift deck gear cap chain spacer shift rod 6204 bearing...
  • Page 32 Unit 10, Hatchmoor Industrial Estate, Hatherleigh, Okehampton, Devon EX20 3LP www.lumag-gb.co.uk 01837 811741 Lumag Distribution Limited Company Number: 09267547 VAT Number: GB154566788 Hatherleigh Plant and Tool Hire is a trading name of Lumag Distribution LTD...