Laski LS 160 Operating Instructions Manual
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Laski LS 160 Operating Instructions Manual

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OPERATING INSTRUCTIONS
LS 160
CHIPPER
model LS 160T
Orig. version 11.2016

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Summary of Contents for Laski LS 160

  • Page 1 OPERATING INSTRUCTIONS LS 160 CHIPPER model LS 160T Orig. version 11.2016...

  • Page 2: Foreword

    Thank you very much that you have just purchased our product, the chipper LS 160 T. Our company has been engaged in production of equipment for wood residues crushing and disposal for many years and has gained considerable experiences in this field.

  • Page 3: Table Of Contents

    Chipper LS 160T Contents ......................2 OREWORD ......................3 ONTENTS PRODUCT IDENTIFICATION ................7 WORK SAFETY INSTRUCTIONS ..............8 ......................8 TILISATION ....................8 LLOWED ......................9 ENERALLY ........ 15 OTOR EHICLE ONSTRUCTION AND EGULATIONS ..................17 AFETY YMBOLS ................. 18 ESIDUAL ISKS ..............
  • Page 4 Chipper LS 160T NOSTRESS ....... 43 SYSTEM PROTECTION AGAINST OVERVOLTAGE Maintenance Intervals ..................47 Checking, Oil Exchange ................. 48 ..............48 AILURES AND ROUBLESHOOTING ....................50 ASTE ISPOSAL WARRANTY ......................51 SERVICE REPORT .................... 52 ................... 53 YDRAULIC SCHEME...
  • Page 5 Chipper LS 160T...
  • Page 6 Chipper LS 160T...

  • Page 7: Product Identification

    Chipper LS 160T Product Identification Our product is identified with its serial number stamped also on the type plate on its three-point hitch. Upon take-over of the product we recommend you to fill required data in the following form concerning the given product and your dealer …………………………………………………….

  • Page 8: Work Safety Instructions

    Chipper LS 160T Work Safety Instructions Utilisation This chipper, being coupled with a tractor three-point hitch, is designed for disposal of wood waste, twigs, barks, branch-wood and other above-ground biomass or for manufacture of chips from aforesaid materials and also for disposal of redundant timber, such as sticks, deals, pickets etc.

  • Page 9: Generally

    Chipper LS 160T Generally This machine is allowed to be operated only by attendants who are over 18 yrs old, physically and mentally capable and demonstrably instructed with its operation. One of two attendants at least (a tractor driver) should have a respective driver's license, group "T".
  • Page 10 Chipper LS 160T It is forbidden to tighten the fixing nuts on the safety frame with intend to increase its resistance against unwished switching off. Required force for switching control should remain on values preset by the manufacturer, i.e. up to 80 N in the lower horizontal frame part.
  • Page 11 Chipper LS 160T At work in residential zones use the machine in accordance with regulations of the local authorities to avoid disturbing of local inhabitants (noise, flying chips). Warning !!! Be aware of ejected particles. They have substantial kinetic energy. If the loaded wooden material contains not allowed parts, such as metal, sand, glass etc., then such objects can reach a longer distance than wooden chips.
  • Page 12 Chipper LS 160T them in the chute and push them forward between the loading rolls by means of a wooden stick or a board, more than 160 cm long, to push materials between the loading rolls.  Should the pressing stick be indrawn between the roles, do not try to pull it out by hand - accident risk! Use always a new stick and go on working.
  • Page 13 Chipper LS 160T Never remove guards and other safety elements. They serve for your safety. Keep the given intervals for checks of bolted joints. Always after work clean all parts of the machine properly. Pay your attention especially to any oil spots or fuel leakage. Clean any oily spots. Some parts of the machine can be hot while in operation.
  • Page 14 Chipper LS 160T Do not use the machine under conditions of low visibility, especially at foggy weather on public roads. Do not use the machine without prior reading this manual. Do not carry out any repairs that are specified for authorised services only. Do not carry out any repair where its solution exceeds your experiences.

  • Page 15: Motor Vehicle Construction And Use Regulations

    Chipper LS 160T Motor Vehicle Construction and Use Regulations This machine is allowed to be coupled to a tractor provided that actual weight of the tractor in such an attachment does not exceed its maximum permissible value and its actual front axle load does not fall under 20% of its gross weight. At public road transport the machine rear must be completed with a portable set of rear lamps and reflector glasses supplied by the manufacturer.
  • Page 16 Chipper LS 160T The distance between the outer edge of lamps and reflector glasses in the portable set and the contour line of the vehicle should not exceed 400 mm. At public road transport this machine must be lifted up in its transport position, see instructions in this manual.

  • Page 17: Work Safety Symbols

    Chipper LS 160T Work Safety Symbols This article introduces work safety symbols (pictographs) used on this machine. Under the given pos. number there is their location on the machine. These work safety symbols warn the operator against risks connected with the machine use. Your respect to the symbol meanings is a precondition for your work safety.

  • Page 18: Residual Risks

    Chipper LS 160T Warning! Hot parts. Warning! Turning Warning! Ejected Warning! Close all Wear personal part is running out. objects hazard. Keep guards before protective away. starting the machine. equipment. Keep safety distance. Warning! Risk of Warning! Rotating Warning! Hazard of Warning! Accident high-pressure liquid rolls.
  • Page 19 Chipper LS 160T Store hydraulic oil only in approved containers, in well ventilated, unoccupied buildings and away from naked flames. 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 let never run the tractor engine in a closed building or confined area with insufficient ventilation.

  • Page 20: Transport Of Product/Handling

    Chipper LS 160T DUST If the material to be loaded is very dry, a large amount of airborne dust might occur. In this situation a corresponding respiratory mask should be worn. HAZARDOUS BRASH Some species of trees and bushes are poisonous and can irritate the skin or give respiratory problems.
  • Page 21 Chipper LS 160T The switch box is completed with a removable switch key. Confusion of switch keys is not possible. First turn the key in the RUN position. A red signal lamp indicates that the electric circuit on the chipper is on and properly interconnected with the tractor wiring.
  • Page 22 Chipper LS 160T Dangerous space around the loading rolls is protected with a hinged cover and by a terminal switch. A safety pin of the chipping device rotor serves for rotor blocking at blades exchange and servicing. The pin is hinged on the rotor box.

  • Page 23: Controls

    Chipper LS 160T Terminal switch of a hinged part of the loading chute turns the driving engine off if the chute is tilted. Emergency STOP button blocks loading immediately – similar function as that of the safety frame. Controls Ignition box – used for supply and control of the safety circuit.
  • Page 24 Chipper LS 160T The safety frame for material loading serves as an actuator for loading rolls control. Its operating positions, as seen from the attendant’s place: - MATERIAL LOADING – initial position - EMERGENCY STOP – while pushing the frame The control buttons for loading and rolls reversing.

  • Page 25: Use

    Chipper LS 160T Storage Store the chipper always in a dry shelter to protect it against weather effects. During storage keep the switch key separately. Keep the stored machine beyond unauthorised persons reach. Before storage clean all parts of the machine. For cleaning use pressure water. Should the water be in the chipping device space, wipe it off and let it dry.

  • Page 26: Coupling To Tractors

    Chipper LS 160T Do not try to repair the machine if it is beyond your competence. Any servicing, especially of rotating parts, should be carried out by authorised persons only. Check conditions of blades. Replace them if worn or damaged. The chipping wheel can be optionally completed with a breaker.
  • Page 27 Chipper LS 160T Before coupling to a tractor, be aware of its max. PTO speed. If the tractor does not reach the speed as required for the machine input shaft, it is strictly forbidden to couple the machine to this tractor type. Coupling of this machine to a tractor can be done as an attachment in the top and bottom draw rods of the three-point linkage, category I or II.

  • Page 28: Cardan Shaft Adjustment

    Chipper LS 160T Coupling of this machine to a tractor can be done as an attachment in the three- point linkage. Let the bottom draw rods sink until they are levelled with the concerned connecting pins. Drive the tractor carefully back to the machine hinge. While coupling the chipper no person is allowed to stand between the chipper and the tractor Attach the bottom draw rods of the three-point linkage and lock its pins by cotters...

  • Page 29: Putting Into Operation

    Chipper LS 160T tractor. Pay special attention to maximum retraction of the cardan shaft. Lift up the machine in its top position. The overlap as measured inside the shaft must be sufficient. For more details, see instructions of the cardan shaft manufacturer. Try to swing out the machine to the left or to the right –...
  • Page 30 Chipper LS 160T Press the green button for loading. CAUTION!! The loading rolls start turning immediately. Having turned the chipping device on wait for speed stabilization. With that you may soever increase or reduce the tractor PTO shaft speed. CAUTION!!! As soon as the PTO shaft starts turning, the hydraulically powered elements can be set in motion as the hydraulic system of the machine is already pressurized.

  • Page 31: Chipping

    Chipper LS 160T Chipping The chipper is powered by a tractor combustion engine. Do not start it in confined or ill-ventilated spaces or under conditions of low visibility. While chipping the chipper must always be properly coupled to a tractor. It is not allowed to use the cardan shaft with its damaged guard.
  • Page 32 Chipper LS 160T Do not load materials with parts of metal, glass, ceramics and other similar objects. Do not chip or load materials while driving. Having put materials in the loading chute/between loading rolls, release the loaded material immediately and keep a certain distance from the chute. Do not load materials with diameters exceeding 160 mm and 3 m in length.
  • Page 33 Chipper LS 160T Recommendations: Do chipping at rated PTO shaft speed only, i.e. at  sufficient power of the chipping wheel for ejecting chips. Being loaded short and fine materials may deposit or clog  the space behind the loading rolls in front of the chipping wheel.

  • Page 34: Putting Out Of Operation

    Chipper LS 160T The loading rolls infeed speed can be reduced by the regulating screw (see arrow on following figure) under the hinged part of the loading chute. To change the infeed speed, just turn the regulating screw accordingly. Putting out of Operation If you want to stop chipping: In case of loaded material wait for emptying of the loading chute.

  • Page 35: Technical Description

    Chipper LS 160T In case of fire or breakdown, stop chipping immediately. In case of fire use foam extinguishers only. If you cannot damp the fire down yourself, call for a fire brigade. If an attending person gets caught by rotating parts or loaded materials, stop the loading rolls by pushing the safety frame (STOP position).

  • Page 36: Frame

    Chipper LS 160T  Loading rolls These rolls take over loaded materials and move them to the chipping wheel. Their speed can be regulated according to the given sort of material and expected results – chips. Both rolls are ribbed and enable loading of materials and also pulling them out at reverse turning if necessary (chipping wheel overloaded).

  • Page 37: Technical Parameters

    Chipper LS 160T Technical Parameters Parameter Unit Value Overall length/transport length 2265/1970 Overall width/transport width 1400 Overall height/transport height 2350/1780 Weight Chipping device: Chipping wheel – diameter - number of blades - rate of cutting Max diameter disposed materials Chipping wheel drive 3 x belts XBP 1700 Ld Loading device: Infeed hole size...

  • Page 38: Lubrication

    Chipper LS 160T Check up the machine for completeness and its general condition. Any maintenance and servicing on the machine can be done at standstill only, i.e. the PTO shaft off, the switch key being pulled out from the ignition box, tractor wheels blocked against unwished motion.

  • Page 39: Blade Grinding

    Chipper LS 160T Grease cup of chipping wheel (right) Lubrication every 40 running hrs(LTA 3EP MOL Lition) Blade Grinding Blades, fitted on the chipping wheel, are double-sided, i.e. reversible if one side is blunt. Blades edge regrinding requires high demands for keeping cutting edge shape. While grinding it is necessary to keep its optimal geometry, see following figure.

  • Page 40: Chipping Adjustment

    Chipper LS 160T Grind every blade only up to minimum distance from edge to its fixing bolt. i.e. 37,5 mm. This distance on a new blade is 100 mm, see following figure. Max. wear/grinding of cutting edge Chipping Adjustment Optimal operation of the chipping device requires proper setting of a clearance between the blade and the opposite cutting edge.

  • Page 41: Nostress System - Speed Regulation

    Chipper LS 160T Recommendation: Check out conditions of blades every 40 operating hours. Regrind blade edges if they are found blunt Jointing elements (bolts and nuts) should be replaced together with The blades exchange. Safety nuts should be used only once, since they lose their self-locking properties if used repeatedly.
  • Page 42 Chipper LS 160T F2 – medium hard wood, branch and leaf wood F3 – hard wood, needle-leaved trees, bough, timber  Speed sensor: This encapsulated sensor in fitted on a holder keeping its distance of 3,2mm from the cam lobe. In the rear part of the sensor sleeve there is an orange LED installed flashing in case of proper sensing.

  • Page 43: Nostress System Protection Against Overvoltage

    Chipper LS 160T NOSTRESS system protection against overvoltage Overvoltage occurrence in the electric installation blows the fuse and breaks the TVS diode (Transient Voltage Suppressor / Transil) used to protect sensitive NOSTRESS electronics against voltage spikes. Should the fuse (7,5 A) be blown again, first replace the damaged TVS diode and then put a new fuse.
  • Page 44 Chipper LS 160T V-belt Tension It is necessary to pay special attention to the routine maintenance and proper belt tension adjustment because the V-belts on this machine transfer the engine torque to the chipping wheel and the hydraulic pump. For belt tension adjustment remove two side belt guards fixed here by fixing bolts. Under these guards there is a belt gear for power transmission to the chipping wheel and the hydraulic pump.
  • Page 45 Chipper LS 160T Recommended belt slack and finger pressure values, see the following chart: Belts drive (belt Finger pressure F Slack p /mm/ pulleys) Input shaft – chipping wheel Chipping wheel – hydraulic pump While tightening the belts proceed as follows: Chipping wheel drive Loosen four nuts on the stretching bolts in the direction intended for pulley shifting.
  • Page 46 Chipper LS 160T Hydraulic pump drive  Loosen four nuts of the fixing bolts holding the pump on the frame uniformly approximately by 0,5 turn to let the pump slide in the intended direction by means of the stretching bolt. Having reached the recommended belt slack value, retighten the fixing bolts on the frame and the lock nut on the stretching bolt.

  • Page 47: Maintenance Intervals

    Chipper LS 160T Full-flow filter allocation Maintenance Intervals Electric Protect all wires against contact with oil products. Keep all Installation elements clean and avoid any damage of wires - short circuit risk. All connections must have clean and proper contact surfaces to avoid intermediate resistance at a wrong contact point.

  • Page 48: Checking, Oil Exchange

    Chipper LS 160T Checking, Oil Exchange Operation Component Interval (hrs) 1000 2500 5000  Exchange Hydraulic oil in circuit  Hydraulic oil filter Checking Hydraulic oil in tank Cleaning Hydraulic oil tank clean daily under special conditions clean every 4 – 5 hrs under extreme dusty conditions (**) (***) see recommended oils...
  • Page 49 Chipper LS 160T Throttle valve closed Check up manual speed regulation for loading Loading activated Press the green button for loading Failure of NOSTRESS Measure voltage on coil of electromagnetic valve; it should be  0 system at max. speed Faulty coil of Coil replacement electromagnetic valve...

  • Page 50: Waste Disposal

    Chipper LS 160T Bearings overheated Insufficient lubrication Lubrication and lubricants should be in or wrong lubricant used accordance with recommended intervals and sorts (LTA 3EP MOL Lition) Too high speed of Working speed of the chipping wheel chipping wheel must not exceed 1500 rpm. Bearing loosened Tighten up bearing housing bolts with required torque...

  • Page 51: Warranty

    Chipper LS 160T Warranty The manufacturer provides warranty on this product for a period as stated in the enclosed Warranty Certificate. The given warranty period begins after delivery to the customer. This warranty covers all failures resulted from faulty assembly, manufacture and used materials.

  • Page 52: Service Report

    Chipper LS 160T Service Report...

  • Page 53: Hydraulic Scheme

    Chipper LS 160T Hydraulic scheme...
  • Page 54 Chipper LS 160T ELEKTRICKÉ ZAPOJENÍ / ELEKTRISCHE SCHEMA / WIRING DIAGRAM...
  • Page 55 Chipper LS 160T ELEKTRICKÉ ZAPOJENÍ / ELEKTRISCHE SCHEMA / WIRING DIAGRAM...

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