Laski TRENCHER TR 120H Operating Instructions Manual Download Page 2 | Manualshive

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Foreword

Thank you very much that you have just purchased our product, the trencher TR60 HC. Our
company has been engaged in production of machines and equipment for many years and
has gained considerable experiences in this field. Quality of our machines is proven in 40
countries of Europe and Asia we export to.

This  manual  brings  important  instructions  for  users,  i.e.  instructions  for  putting  the  machine
into  operation,  work  safety  and  operating  experiences.  You  will  learn  how  to  carry  out
maintenance, repairs and service and who is authorised for doing checks and other actions on
the machine.

Your  local  dealer  will  give  you  this  manual  with  instructions  for  operation  and  maintenance
while  taking  this  new  machine  over.  Make  sure  if  you  understand  everything.  If  not,  do  not
hesitate and contact your dealer and ask him for explanation. 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.

This operation manual includes also work safety instructions in various parts of the text. If
there is any work safety rule or instruction in general description, then this instruction is
indicated with the following symbol:

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Summary of Contents for TRENCHER TR 120H

Page 1: ... Version 10 2019 1 z 48 OPERATING INSTRUCTIONS TRENCHER TR 120 Model TR 120H ...

Page 2: ...oing checks and other actions on the machine Your local dealer will give you this manual with instructions for operation and maintenance while taking this new machine over Make sure if you understand everything If not do not hesitate and contact your dealer and ask him for explanation It is very important for you and your work safety to understand all instructions given in this manual The firm Las...

Page 3: ... VIBRATIONS 15 TECHNICAL DESCRIPTION 15 PRODUCT DELIVERY 19 HANDLING 20 PRECAUTIONS IN DESIGN 20 CONTROLS 21 TRANSPORT HANDLING AND STORAGE 24 CHECKLIST BEFORE OPERATION 26 STARTING THE ENGINE 27 PUTTING INTO OPERATION 28 PUTTING THE TRENCHER ASIDE 31 EMERGENCY SITUATIONS 32 ROUTINE MAINTENANCE 32 MAINTENANCE OF TRACKED UNDERCARRIAGE 32 MAINTENANCE OF CHASSIS 35 LUBRICATION 36 ...

Page 4: ...Trencher TR 120 H 4 HYDROGENERATOR BELT TIGHTENING 36 MAINTENANCE OF ENGINE 38 MAINTENANCE INTERVALS 38 FAILURES AND TROUBLESHOOTING 40 WARRANTY 44 SERVICE REPORT 45 ...

Page 5: ...Trencher TR 120 H 5 ...

Page 6: ...Trencher TR 120 H 6 ...

Page 7: ...concerning the given product and your dealer Type of product Serial number of product Engine type Serial number of engine Dealer s address Address of authorised service Date of delivery Warranty expiration date Interruption of warranty period The product type plate is located on the machine frame above the cooler The type plate includes manufacturer s data product trade name model type serial numb...

Page 8: ...en in the field Avoid excessive steering manoeuvres on asphalt and concrete surfaces since these cause excess pad wear Avoid working in the fields with gradients exceeding 12o Avoid working on very soft or unstable ground The machine could sink slide slew or turn over Cross the already made trenches only in the permissible way see instructions below Avoid working on icy and frozen terrain it appli...

Page 9: ...each of the machine Avoid working with inclination exceeding the permissible limit of 12o Do not kip the machine to any side more than 22o risk of damage of the engine 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 ab...

Page 10: ...ns that may result from contact of the cutting chain with undesirable objects bringing usually damage of the chain Turn the machine off and first remove these objects to respect all work safety instructions to check up functions of all controls and safety elements before putting the machine into operation While working wear always personal protective equipment protecting shield or goggles protecti...

Page 11: ...ng Keep fuel tank cap always properly closed while working Do not start if some fuel has been spilled Keep open fire away while filling the fuel tank Keep the machine beyond reach of open fire Some parts of the machine may run warm exhaust manifold gearings hydraulic elements Do not touch them when the machine is still running or having been just stopped Do not touch the spark plug wire while the ...

Page 12: ...SDS sheet Store fuel only in approved containers in well ventilated unoccupied buildings and away from naked flames Do not fill the fuel tank while the engine is running EXHAUST FUMES Engine exhaust gases contain poisonous carbon monoxide Carbon monoxide is odourless colourless and can cause death if inhaled Avoid inhaling exhaust fumes and never run the engine in a closed building or confined are...

Page 13: ...erating noise may even exceed 85 dB A if measured in the operator s place While working the operator is obliged to wear appropriate hearing protectors DUST If the ground is very dry a large amount of airborne dust might occur In this situation a corresponding respiratory mask should be worn LIGHTING Operate this machine only at daylight or with sufficient lighting in the workplace Work Safety Symb...

Page 14: ...d protective gloves Warning Rotating auger Hit and pull in hazard Keep safety distance from turning parts Warning Keep safety distance from chain bar in motion 7 8 9 10 11 12 Keep safety distance from moving parts Warning Fuel is highly flammable Keep open fire away Warning Hot parts of exhaust manifold Warning Turning parts are running out Warning Close all guards before starting the machine Warn...

Page 15: ... Vibrations Operation of this machine brings following emissions Operating mode engine KOHLER CH 980 Sound power LW A dB 110 Noise at max speed LA dB 92 4 All measurements taken in accordance with ČSN EN ISO 11201 ČSN EN ISO 3744 Technical Description This is trencher designed as a self propelled machine to be controlled by an attendant standing in the given attendant s place ramp Its tracked chas...

Page 16: ...m a new trench The chain bar is height adjustable and hydraulically controlled by hydraulic cylinders The guiding block for flat trenching is mounted close to the chain bar edge The chain tips are fitted as left and right and intended for cutting the soil and bringing it to the auger Fully hydraulic control of the machine is based on actuators installed in the upper part of machine They are in fac...

Page 17: ...ces can cause premature wear and deformation hence reducing useful life of the tracks Loading unloading Always perform the machine loading and unloading operation with the trailer parked on a solid and level surface Ensure that the hand brake is on if fitted and the trailer wheels are chocked prior to attempting to move the machine onto from the trailer If loading on a gradient always ensure that ...

Page 18: ...n To load or unload the machine you can use also some lifting means min carrying capacity of 1000 kg with adequate chains straps or cables Fasten retention chains straps or cables to the machine chassis and on the loading floor see lashing point symbols Do not put them over or against hydraulic hoses or other rubber parts Make sure that they do not cause damage to rubber tracks hydraulic hoses ele...

Page 19: ...ding 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 It is not allowed to put any objects or tools on the machine or to pile two machines on each other This product is delivered completely mounted and attached to a woo...

Page 20: ...ds may shoot out While cutting the band use protective gloves and goggles Remove the chocks from the tracks Fill the fuel tank connect the battery check up the oil engine level and try to start the engine Lift up the chain bar Put the chocks to the pallet in the required direction and in spacing of the required wheel track Keep free space around the pallet for going down Be aware of potential insu...

Page 21: ...g Control levers are self returning in their neutral position While working the attendant must stand on the attendant s ramp Otherwise the engine turns off dead man control Moving parts on this machine particularly bar chain and auger are located beyond attendant s reach While starting the engine the attendant must stand on the attendant s ramp Controls This machine can be controlled by control le...

Page 22: ...tmeter 7 Engine speed control 8 Choke control 9 Chain bar up down 10 Chain control 11 Hydraulic oil dosing into quick couplers for peripheral equipment 12 Lever for gear control and creeping 13 Left track control forward 14 Left track control backward 15 Right track control forward 16 Right track control backward Use Before Putting into Operation ...

Page 23: ...accessible under the engine hood Arrow pointing to engine oil dipstick Fuel tank with level indicator Hydraulic oil tank with oil gauge Fig 11 Indication of service fluids Check out tightening of bolted joints especially on all moving parts guards and completeness of other parts For the engine operation use only unleaded petrol ON 95 Keep this machine beyond children s and unauthorised persons rea...

Page 24: ...a trailer let the chain bar sink carefully on the loading floor fasten retention chains straps or cables to the machine chassis Do not put them over or against hydraulic hoses Make sure that they do not cause damage to rubber tracks Fasten each corner of the machine and fasten the front arm to the trailer vehicle bed with a chain strap or a suitable anchor Remember to use a purpose designed ramp o...

Page 25: ...move any spilled oil and clean all oily spots properly Always put the machine aside on a flat and solid floor and block it against unwilling motion by means of scotch blocks Do not let the chain bar sink on a hard surface concrete for underlaying use a wooden board Do not put any objects or tools on the machine Store the fuel canisters separately Recommendations for chassis with rubber tracks Avoi...

Page 26: ...place them if worn or damaged CAUTION The blades are fitted as left and right Be aware of it while changing them Check up hydraulic hoses for wear Replace them if necessary or every four years at least Check up the rubber tracks for wear Check up volume of service fluids available It is strictly forbidden to start the machine with removed guards It is strictly forbidden to do any technical changes...

Page 27: ...er is equipped with an electric starter controlled by the ignition key in the switchbox On the switchbox there is also a standby indicator see fig 14 Before start this indicator should be ON Otherwise the engine cannot be started Before starting it is necessary to re connect the battery that should be properly charged A partially discharged or flat battery prevents starting and the engine cannot r...

Page 28: ... 10 sec When the engine roars to life release the key immediately If the engine does not roar to life within 10 sec release the key in the position 0 again Keep an interval between two starts standstill 60 sec at least Do not crank the engine for a longer time than 10 sec When the engine roars to life release the key immediately If the engine does not roar to life within 10 sec release the key in ...

Page 29: ...ne motion forwards It is always necessary to adapt the machine speed forwards to on site conditions particularly to real properties of the soil Local conditions and soil properties may considerably differ First set the machine speed slow and then speed up slowly never conversely While trenching try to keep the engine speed constant resp according to current machine load listen to its operating noi...

Page 30: ... trench should be in the middle of the track length Then set both tracks into motion in opposite directions and the machine turns in the required direction of the trench line Contrarily if you need to go away from the trench set both tracks into motion in opposite directions again so that the machine shall be perpendicularly to the trench and go away If you heard any strange noise or vibrations or...

Page 31: ...side It is possible to put the trencher aside only on flat and even terrain or up to the permissible limits as to its climbing ability i e up to 12o Avoid putting it aside on soft or unstable ground The trencher is powered hydraulically i e by means of a hydraulic pump After some operation hydraulic oil will get hot and the entire system may show some oil leakage It may bring slow unwished motion ...

Page 32: ...damp the fire down yourself call for a fire brigade Routine Maintenance Any servicing of the trencher should be carried out by authorised persons only Check up the machine for completeness and its general condition Check up the trenching chain and the rubber tracks for tightness and wear and keep them in proper condition Check up the V belt of the hydrodrive for tightness and wear and keep it in p...

Page 33: ...d by turning the stretching bolt above the idler wheel The bolt head is accessible under its cap Correct inspection and maintenance procedures Always perform maintenance actions on a solid and level surface Never grease or lubricate or perform maintenance on the machine while being in motion Solidly support the undercarriage if it needs to be lifted up for maintenance purposes Use great care when ...

Page 34: ...ulations Gear oil Avoid using oils with different characteristics and brands Removing the rubber track Stop the machine on a solid and level surface Jack up side of the machine under its main frame and support it in safe position Remove the cap on the tension bolt loosen the bolt and release the idler wheel Exercise force sideways to slide the track and lift it off the front idler wheel Installing...

Page 35: ...ion can cause steel cables to break in the following conditions when stones or foreign matters accumulate between the track and the undercarriage frame when the track slips off its guide system in case of great friction e g rapid changes in direction Breakage of metal core Excess track tension can cause the metal core to bend or break just like the steel cables as stated above Other causes may inc...

Page 36: ...g conditions Grease nipple on the chain bar Grease nipple located on the auger and on the chain drive shaft The chain bar grease points are especially hinges that serve for swinging motions These points are marked with white triangular marks Perform this maintenance procedure every 50 work hours using lithium grease with EP2 consistency Hydrogenerator Belt Tightening The hydrogenerator and its bel...

Page 37: ...al 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 Belt creeping or excessive belt tension may bring considerable impact on service life of the belt 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 pulle...

Page 38: ...ir intake Check up cooling air intake Remove contingent debris and oily spots on the machine Make sure that all the tips and retaining bolts on the chain bar are tight and in good condition Remove contingent debris on the oil cooler Every 50 hours Check up tightening of all bolted joints Check up the rubber tracks for correct tension and contingent damage Check up tension and condition of the belt...

Page 39: ...d condition Change primary fuel filter Every 500 hours Check up and clean the air filter Check up and set the valve play Check up all hydraulic elements for condition function and tightness Change hydraulic oil and oil filter Every 1000 hours Change fuel filter Engine oil sorts used in dependence on operating conditions Fig 58 Engine oil sorts ...

Page 40: ...arter failure failure of relay or controls Check up electric equipment and particular components SE RVI CE Engine roars to life but does not run after starter disconnection Speed regulator lever not sufficiently in START position Set the lever to START Fuel filter fouled Change fuel supply line broken error indication in connection with automatic controls low oil pressure fouled filter faulty alte...

Page 41: ...s in cooling air line piston rings worn or stuck too much oil check up oil dipstick check up cooling air intake clean as needed Trenching chain cannot be set in motion Blown fuse Replace Insufficient trenching quality Chain tips blunt Remove blades or regrind SE RVI CE NOTE The note SERVICE in the Remedy column means that this operation should be done by an authorised service only ...

Page 42: ...Trencher TR 120 H 42 ELECTRIC CIRCUITRY ...

Page 43: ...Trencher TR 120 H 43 HYDRAULICS ...

Page 44: ... and actions on the machine Usage of unoriginal spare parts or parts intended for other models Disobedience to instructions for use Damage of the machine caused by faulty handling maintenance or overloading This warranty does not cover faults resulted from damages caused by the user This warranty does not cover parts being subject to ordinary wear and tear This warranty does not cover any damage o...

Page 45: ...Trencher TR 120 H 45 Service Report ...

Page 46: ...Trencher TR 120 H 46 Service Report ...

Page 47: ...Trencher TR 120 H 47 Service Report ...

Page 48: ...Trencher TR 120 H 48 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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