Laski TRENCHER TR 120H Operating Instructions Manual
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Laski TRENCHER TR 120H Operating Instructions Manual

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OPERATING INSTRUCTIONS
TR 120
TRENCHER
Model TR 120H
„Version 10.2019
1 z 48

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Summary of Contents for Laski TRENCHER TR 120H

  • Page 1 OPERATING INSTRUCTIONS TR 120 TRENCHER Model TR 120H „Version 10.2019 1 z 48...

  • Page 2: Foreword

    It is very important for you and your work safety to understand all instructions given in this manual. The firm Laski spol. s r.o. does not bear any responsibility for any claims resulting from disobedience to the instructions given in this manual.

  • Page 3: Table Of Contents

    Trencher TR 120 H Contents FOREWORD ......................2 CONTENTS ......................3 PRODUCT IDENTIFICATION ................7 WORK SAFETY INSTRUCTIONS ..............8 UTILISATION ....................... 8 ....................8 LLOWED ......................9 ENERALLY ..................13 AFETY YMBOLS ..................15 OISE AND IBRATIONS TECHNICAL DESCRIPTION ................15 PRODUCT DELIVERY ..................
  • Page 4 Trencher TR 120 H ............... 36 YDROGENERATOR IGHTENING .................. 38 AINTENANCE OF NGINE ................. 38 AINTENANCE NTERVALS ..............40 AILURES AND ROUBLESHOOTING WARRANTY ......................44 SERVICE REPORT .................... 45...
  • Page 5 Trencher TR 120 H...
  • Page 6 Trencher TR 120 H...

  • Page 7: Product Identification

    Trencher TR 120 H Product Identification Our product is identified with its serial number stamped on the type plate placed on the machine frame in front of the chain bar. Upon the take-over of the product we recommend you to fill required data in the following form (1) concerning the given product and your dealer.

  • Page 8: Work Safety Instructions

    Trencher TR 120 H Work Safety Instructions Utilisation The trencher TR60 HC facilitates trenching works at cables and lines lying in gardens, schools and parks without moving too much earth. The trench itself is up to 120 cm deep with a plain and clean unvaried profile given by the cutting chain width.

  • Page 9: Generally

    Trencher TR 120 H Generally Before use of this machine the user (owner) is obliged to instruct operators with this manual and all operating instructions in a provable way. This machine is allowed to be operated only by an operator who is over 18 years old, physically and mentally capable and demonstrably instructed with its operation.
  • Page 10 Other problems and faults should be announced directly to the manufacturer, the LASKI Service Centre that is always ready to help you. Before any checks or servicing stop the engine, disconnect the spark plug cable and wait until any motion stops.
  • Page 11 Trencher TR 120 H The manufacturer does not bear responsibility for any damages or injures to the third persons or to other equipment resulted from disobedience to instructions given in this manual. When handing the machine over to another person make sure if all controls, guards, other safety elements and its safety switch are complete and fully functional.
  • Page 12 Trencher TR 120 H Avoid wearing free parts, such as ties, scarves and shawls, belts etc. In case of longer hairs use always a proper head piece. Otherwise, such a person is not allowed to operate this machine. While working, wear always personal protective equipment – protecting shield or goggles, protective gloves, ear protection, working shoes and working clothes properly buttoned.

  • Page 13: Work Safety Symbols

    Trencher TR 120 H immediately with lots of clean water and seek medical advice immediately. Read the battery MSDS sheet supplied by the manufacturer. EXPLOSIVE GASES Gases, if given off from the battery, are explosive. Keep any sparking and flames away. PERSONAL SAFETY The following personal protective equipment (P.P.E.) must be worn by the person operating this machine and also all personnel within a 20 metre radius of the machine:...
  • Page 14 Trencher TR 120 H Read this Always follow Wear personal Warning! Keep safety Warning! Keep operating manual the manual while protective Rotating auger. distance from safety distance equipment – eye before use. maintaining, Hit and pull-in turning parts. from chain bar in servicing or protection, hazard.

  • Page 15: Noise And Vibrations

    Trencher TR 120 H Lashing points. Avoid working Wear protective Wear ear Wear face Wear steel toe with inclination gloves. protection. protecting shield. protection boots. exceeding permissible limit. Obr. 5 – Work safety symbols on the machine Obr. 6 – Work safety symbols on the machine Noise and Vibrations Operation of this machine brings following emissions:...
  • Page 16 Trencher TR 120 H regulation. Adjustment of the track base can be done also by means of a hydraulic cylinder. Profiled rubber tracks are stretched on rollers. This machine is powered by the engine KOHLER CH 980, four-stroke, air-cooled, power output of 35 HP. The engine is used also for hydraulic drives of the travel gear and the trenching device.
  • Page 17 Trencher TR 120 H Trench width max. 200 1,654“, with 80 pitches Trenching chain ENGINE KOHLER CH 980, four- Type: stroke, air-cooled Fuel unleaded petrol (ON 95) Power output: HP/kW 18,6/25 at 3600 rpm Engine oil charge Fuel tank capacity: Hydraulic oil capacity Hydraulic oil OH HV46, ISO VG46...
  • Page 18 Trencher TR 120 H Make sure the slope of the ramp is less than 12°. For loading/unloading keep the tracks extended to maximum. Before loading the machine clean thoroughly the ramp and the loading area. Ramps or areas that are dirty with oil, mud or ice are slippery and dangerous. Avoid steering when going up or down the ramps since this can be extremely dangerous.

  • Page 19: Product Delivery

    Trencher TR 120 H Product Delivery This product is delivered completely mounted and attached to a wooden pallet. While handling you may use a lift truck or a tackle with min. carrying capacity of 1000 kg (suspension in the given lashing points only). For any handling you need min.

  • Page 20: Handling

    Trencher TR 120 H no case against mechanical damage, fall etc. The protective foil is recyclable; dispose it according to valid local regulations. While putting the machine aside (e.g. at reloading), we recommend to place it under a shelter. While unloading, put the product always on a solid and level surface. It is not allowed to put it on a labile base.

  • Page 21: Controls

    Trencher TR 120 H perforated. While trenching, the attendant must remain in the intended attendant’s workplace (on the attendant’s ramp). Therefore this machine is equipped with a sensor sensing presence of the attendant in the right workplace (see fig.). Control levers are self-returning in their neutral position. While working, the attendant must stand on the attendant’s ramp.
  • Page 22 Trencher TR 120 H Fig. 8 Trencher controls Ignition key 10. Chain control Standby indicator 11. Hydraulic oil dosing into quick Hour counter couplers for peripheral equipment Working lights switch 12. Lever for gear control and creeping Side warning lights 13.
  • Page 23 Trencher TR 120 H Before the first putting into operation check up the machine for contingent damages and completeness after its transport and storage. Exchange all damaged or worn parts. Use always original spare parts. For servicing or spare parts contact your dealer or an authorised service point.

  • Page 24: Transport, Handling And Storage

    Trencher TR 120 H After short cranking check up if the fuel filter is filled with fuel. At light knocking you can see darker fuel level in the filter. If this level reaches about ¾ of the filter height, try to crank the engine again by turning the ignition key shortly.
  • Page 25 Trencher TR 120 H Store the trencher always in dry (sheltered) space to protect it against weather effects. Keep the stored machine beyond unauthorised person's reach. Pull the ignition key out and keep it separately. Before storage clean all parts of the machine. Remove any spilled oil immediately and wipe off all oily spots.

  • Page 26: Checklist Before Operation

    Trencher TR 120 H deformation hence reducing the useful life of the tracks. Avoid contact between sharp concrete edges etc. and the rubber track. Fuels or synthetic oils must never come in contact with the rubber track. If this does happen then they must immediately be cleaned and neutralized. Avoid using rubber tracks in marine and seaside environments since saline air or salt in general corrode adhesion between rubber and metal inner core.

  • Page 27: Starting The Engine

    Trencher TR 120 H Make sure whether the locking pin is properly inserted and the terminal switch closed. The pin must be forelocked and the switch contact pressed, see the fig. Connect/check up the battery connections. Starting the Engine This trencher is equipped with an electric starter controlled by the ignition key in the switchbox.

  • Page 28: Putting Into Operation

    Trencher TR 120 H Use the choke only for cold (first) start. Should the engine be still warm, do not use the choke – the engine roars to life also with higher speed. Turn the ignition key in the START position or I. Starting procedure: Turn the battery disconnector on and re-connect the battery.
  • Page 29 Trencher TR 120 H Before work first observe the working area. To ensure maximum life of the trencher and to keep the chain tips sharp, any contacts with stones, flint brick and other hard materials around the base of the trencher should be kept to an absolute minimum.
  • Page 30 Trencher TR 120 H While working on slippery or muddy ground (not only icy) or on slopes, the trencher tracks may slip. In this case it is necessary to make continuous corrections for keeping the required trench line. To avoid slipping the machine into the trench: go always perpendicularly to the trench while crossing it;...

  • Page 31: Putting The Trencher Aside

    Trencher TR 120 H directly the manufacturer. It is forbidden to work with the trencher being out of order. It is strictly forbidden to block the machine controls anyhow and to prevent their return in the neutral position. It is also forbidden to start working with removed guards or with non-functional safety elements/switches (dead-man control –...

  • Page 32: Emergency Situations

    Trencher TR 120 H Emergency Situations If any person or animal approaches the working area while trenching (within a 20 metre radius of the machine), then stop working immediately. If you heard any strange noise or vibrations or felt a strange smell while trenching, then turn off the machine immediately, pull out the ignition key and contact your dealer or directly the manufacturer.
  • Page 33 Trencher TR 120 H decreases, it must be re-tightened to prevent the track from coming off. The track is to be tightened by turning the stretching bolt above the idler wheel. The bolt head is accessible under its cap. Rubber track tension: When the tracked undercarriage is lifted, the rubber track should sag 20-30 mm.
  • Page 34 Trencher TR 120 H Keep clean the undercarriage widening cylinder and track-stretcher grease nipples. Intervals for routine maintenance are indicated for normal work conditions. If the tracked undercarriage is used in severe work conditions, then maintenance must be performed at shorter intervals accordingly. Dispose of lubricants always in an ecologically safe way.

  • Page 35: Maintenance Of Chassis

    Trencher TR 120 H Fig. 26 Rubber track structure The structure of the rubber track is shown above (fig 26). The steel cables and the metal core are embedded in the rubber. The curved profiles function gives stability on soft terrain. The wheel guides, located on the inside of the track, prevent the track from sliding off the guide rollers.

  • Page 36: Lubrication

    Trencher TR 120 H Lubrication Undercarriage grease points: Perform this maintenance procedure every 100 work hours, using lithium grease with EP2 consistency. Clean grease nipples before connecting them to the grease gun. Clean all grease being extruded. Lubrication should be at more frequent intervals if the tracked undercarriage is used in particularly severe operating conditions.
  • Page 37 Trencher TR 120 H For belt change move the bolt quite down in the guiding slot. In this position remove the worn belt and put a new one on the belt pulley. Tighten the belt and keep its optimal slack by displacement of the bolt in the slot.
  • Page 38 Trencher TR 120 H displacement of the bolt in the slot. Optimal belt tension/slack at finger pressure (50 N) is 10 mm in the middle of the belt length. Having reached the recommended belt slack value, retighten the locking nut again.
  • Page 39 Trencher TR 120 H function Do not tighten the cylinder head nuts. Make sure that all the retaining bolts on the chain bar are tight and in good condition. Change primary fuel filter. Check up and clean the air filter. Check up and set the valve play.
  • Page 40 Trencher TR 120 H Failures and Troubleshooting Failure Cause Remedy Engine does not Lack of fuel in fuel tank Refill start however it is Check up the entire fuel system: possible to crank - fuel supply line it by starter - primary fuel filter - fuel filter Insufficient compression stroke:...
  • Page 41 Trencher TR 120 H engine power, loss Valve clearance not OK Adjust of speed, black exhaust fumes Excessive engine Sucked-oil amount in engine - piston rings worn or stuck temperature Insufficient cooling: - too much oil, check up oil dipstick - debris in cooling air line - check up cooling air intake, clean as needed...
  • Page 42 Trencher TR 120 H ELECTRIC CIRCUITRY...
  • Page 43 Trencher TR 120 H HYDRAULICS...
  • Page 44 Trencher TR 120 H Warranty The manufacturer provides warranty on this product for a period as stated in the enclosed Letter of Indemnity. This warranty period begins upon delivery to the customer. This warranty covers all failures resulted from faulty assembly, manufacture and materials.
  • Page 45 Trencher TR 120 H Service Report...
  • Page 46 Trencher TR 120 H Service Report...
  • Page 47 Trencher TR 120 H Service Report...
  • Page 48 Trencher TR 120 H LASKI, s.r.o. 798 17 SMRŽICE 263 CZECH REPUBLIC tel/fax: 00420582381152 e-mail: info@laski.cz http://www.laski.cz...

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