Laski LS 160 User manual

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

Chipper LS 160T
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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.
Quality of our small and also powerful machines is proven in 40 countries of Europe and Asia
we export to.
Permanent innovation of the Laski s.r.o. manufacturing assortment was crowned by the Gold
Medal for our complex family of shredding and chipping equipment KDO and LS at the
occasion of the International Trade Fair.
Grand Prix Techagro 1998
Grand Prix Silva Regina 2002
Grand Prix Silva Regina 2008
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 servicing 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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Contents
FOREWORD ...........................................................................................................2
CONTENTS.............................................................................................................3
PRODUCT IDENTIFICATION...........................................................................7
WORK SAFETY INSTRUCTIONS.....................................................................8
UTILISATION .........................................................................................................8
NOT ALLOWED USE ..............................................................................................8
GENERALLY..........................................................................................................9
MOTOR VEHICLE CONSTRUCTION AND USE REGULATIONS ................................15
WORK SAFETY SYMBOLS....................................................................................17
RESIDUAL RISKS .................................................................................18
TRANSPORT OF PRODUCT/HANDLING .................................................................20
PRECAUTIONS IN DESIGN ....................................................................................20
CONTROLS ..........................................................................................................23
USE........................................................................................................................25
STORAGE.............................................................................................................25
BEFORE PUTTING INTO OPERATION ....................................................................25
COUPLING TO TRACTORS ....................................................................................26
CARDAN SHAFT ADJUSTMENT ............................................................................28
PUTTING INTO OPERATION..................................................................................29
CHIPPING ............................................................................................................31
PUTTING OUT OF OPERATION ..............................................................................34
EMERGENCY SITUATIONS ...................................................................................34
TECHNICAL DESCRIPTION...........................................................................35
Chipping Device.............................................................................................35
Frame.............................................................................................................36
Technical Parameters.....................................................................................37
MAINTENANCE .................................................................................................37
Lubrication.....................................................................................................38
Blade Grinding...............................................................................................39
Chipping Adjustment......................................................................................40
NOSTRESS System –Speed Regulation .........................................................41
........................................................................................................................41

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NOSTRESS SYSTEM PROTECTION AGAINST OVERVOLTAGE...............................43
Maintenance Intervals....................................................................................47
Checking, Oil Exchange.................................................................................48
FAILURES AND TROUBLESHOOTING ...................................................................48
WASTE DISPOSAL ...............................................................................................50
WARRANTY........................................................................................................51
SERVICE REPORT ............................................................................................52
HYDRAULIC SCHEME...........................................................................................53

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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
Type of product:
…………………………………………………….
Serial number of product:
……………………………………………………..
Dealer's address:
……………………………………………………..
Address of authorised service:
……………………………………………………..
Date of delivery:
……………………………………………………..
Warranty expiration date:
……………………………………………………..
Interruption of warranty period:
……………………………………………………..
This type plate includes:
-manufacturer's data
-- product trade name
-- type
-- model
-- year of manufacture and
serial number
-weight of machine
- drive and PTO shaft speed

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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. This chipper is designed for
material loading while the tractor is standing on flat and compact surface. In front
of the loading chute there should be an area with minimum free space of about 5
m.
The chipper can dispose all these materials with diameter up to 160 mm or flat
boards and plates with thickness up to 60 mm .
These wooden pieces must be free of metal, glass and other similar objects. While
working, the chipper must be relatively levelled.
The chipper should be controlled and operated by two attendants who in turns load
materials to be chipped in a loading chute.
Not Allowed Use
The chipper is not allowed to be used for disposal of aforesaid materials with
foreign matters and objects, such as metal, steel binding bands, glass cullet, stony
debris, ceramics etc.
It is not possible to use the chipper in the presence of unauthorised persons who
may stand or move in direction of discharge ducting. At work in residential zones
use the machine in accordance with regulations of the local authorities to avoid
disturbing of local inhabitants (noise level). While chipping, it is not allowed to
enter the area of ejected flying wooden chips.
On hilly terrain its loading chute height should not be lower than 600 mm.
It is not allowed to stand on higher spots around the machine while loading
materials into the chute.
Should some bar materials be loaded, then particular bars should be only up to 3 m
long.
Do not load materials with diameters exceeding 160 mm or wooden boards with
thickness more than 60 mm.
It is strictly forbidden to start the chipper with its cardan shaft damaged.

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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".
-This machine can be operated by two persons only.
-Training courses for the operating staff should include also practical operation
under supervision of an experienced person or your dealer and with
explanation of necessary work safety instructions.
-Before working learn all functions of individual controls and safety elements
and carry out functional checks before any use. Check especially loading of
materials, functionality and height of the controller frame.
-By pushing the concerned controller in direction of material input the machine
should stop material loading immediately. Any repeated putting machine into
operation is possible only after bringing the frame in its initial position and
pushing the green button on the chute. The controller frame has to be
advanced in front of the hinged loading chute edge so that the attendant
stops the loading rolls at pushing the frame by hand (or leg or belly).
-It is strictly forbidden to change or to set the controller frame so that the STOP
position is hidden under the loading chute edge, see fig.
-To stop loading it is also possible to press the STOP button under the loading
chute.For deactivation turn the STOP button slightly and pull it up. Any other
repeated putting machine into operation is analogical, i.e. after bringing the
frame in its initial position and pushing the green button on the chute.

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-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.
-Any removal of safety elements and guards from the machine and any further
operation without them are strictly forbidden.
-While chipping it is not allowed to enter the area of ejected flying wooden
chips. Every operator of this machine is fully responsible for any injury or
damage caused to the third persons within the operating reach of the machine.
-The end piece of the discharge duct (its upper turnable part) can be set only in
angles, see following figure. Never direct it toward the attendant's place!!
-While working the machine should fully rest on the ground with its frame
bottom part.
-Do not let the machine sink in ditches, trenches or similar undulations. It is
necessary to have flat surface around the machine while working and to keep
recommended loading heights.
-Keep this machine beyond children's and unauthorised person's reach. Avoid
their attendance while chipping.
-When using the chipper without any container or closed bin, keep anybody
beyond the area where chips are being thrown.
-When using the chipper with such a bin, never look inside if the chipper is still
working.
-When leaving the machine take always the switch key out of ignition.
-Every operator of this machine is fully responsible for any injury or damage
caused to the third persons within the operating reach of the machine.

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-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. Direct the discharge duct to regulate its ejecting as needed.
-Instructions for use of the cardan shaft operation and the trailing tractor are an
integral part of this manual and should be always respected.
-The cardan shaft guard should be blocked against turning.
-While coupling the chipper to a tractor do not stand between its towing bar
and a tractor. Do not stand behind a towing tractor while backing. Ask other
person to help you with coupling.
-For coupling first attach the cardan shaft to the input shaft of the machine, to
the bottom draw rods and then the top draw rod of the tractor three-point
linkage. Finally attach the cardan shaft to the PTO shaft on the tractor.
While chipping the operator is obliged:
to use only such a chipper which is in optimal operating condition, not
damaged through transport, storage of from previous operation,
It is not allowed to put the machine into operation with its cardan shaft guard
damaged.
to check functions of all controls and safety elements, particularly the
controller frame, before putting the chipper into operation,
to avoid disturbing of other people with noise, exhaust fumes or ejected flying
particles (at windy weather),
to keep traffic rules and local regulations when going or working on or nearby
public roads,
If the discharge duct gets clogged, stop loading immediately. Clean the duct
at standstill only. For cleaning use only suitable hooks or sticks to release
pressed materials. After repeated putting the chipper into operation let the
machine run idle in the chipping mode for a while to empty the whole
discharge ducting and the chipping wheel space. If proper cleaning is required
then take always the switch key out of ignition before removing hoods and
block the tractor against unwilling motion.
While working, never lean over the loading chute and never push wooden
materials with your hand or foot only. While loading short materials, throw

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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.
While working wear always personal protective equipment - protecting shield
or goggles, protective gloves, working shoes and working cloth properly
buttoned. 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 aids - protecting shield or
goggles, protective gloves, working shoes and working cloth properly
buttoned. 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.
In case of two attendants it is necessary to make simple signals clear before
working and to appoint one who will manage the work. Both attendants must
be properly trained in attendance and turning the chipper off in emergency
cases.
-Keep traffic lights and work safety symbols in proper order.
-Check materials to be loaded and remove all undesirable objects. If you see
such particles in ejected chips, stop working immediately.
-Never load materials with parts of metal, glass and other similar objects (metal
wires, nails etc.).
-This manual describes problems and faults which could occur at work and
which may be remedied by an instructed person. In case of other problems and
faults do not hesitate and contact the manufacturer. He is always ready to help
you.
-Never do any technical changes or any actions which are neither given in this
manual nor allowed by the manufacturer. The machine, not correctly installed
or adjusted, may run without problems now but in the future it could damage
any of important parts. Pay regular attention to all joints and bolts. Keep them
properly tightened.
-Do not put any objects or tools on the machine.
-The manufacturer does not bear responsibility for any damages or injures
caused 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 and other safety elements are complete and fully functional.

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-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. Avoid any settling of
flammable chipped materials on such parts or close to the hydraulic oil tank.
Stop working if such deposits exceed 1 mm.
-Any servicing can be done only if the machine was put out of operation, its
battery was disconnected and the cardan shaft was uncoupled. If the chipper is
still coupled to the three-point hitch, block the tractor (wheels) against
unwanted motion.
-Do not use petrol as a cleaning agent.
-Keep open fire away while filling the tank.
-Keep the machine beyond reach of open fire.
-Some parts of the machine run warm, such as hydraulic elements, belts and
pulleys. Do not touch them when the engine is still running or having been just
stopped.
-Do not let the engine running in high speed unreasonably.
-Do not start the machine in confined or ill-ventilated spaces.
-Combustion gases outgoing from a tractor are toxic!
-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.
-It is strictly forbidden to work with the
chipping device damaged (out-of-
balance, vibrations while running).
-While servicing the chipping device, or in
the vicinity thereof, it should be always
blocked against unwilling motion (with
its safety pin inserted).
-Do not let the engine running in high
speed unreasonably.
-Do not start the machine in confined or
ill-ventilated spaces.
-Combustion gases outgoing from a tractor
are toxic!

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-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.
-It is strictly forbidden to work with the chipping device damaged (out-of-
balance, vibrations while running).
-While servicing the chipping device, or in the vicinity thereof, it should be
always blocked against unwilling motion (with its safety pin inserted).
-
Before transport on public roads:
At public road transport this machine must be lifted up in its transport
position, see instructions in this manual. First set also the machine in its
transport position, i.e. its loading chute and discharge duct folded down and
mechanically blocked against motion. Its side lights must be visible, not
covered, see fig.
Couple the chipper to a towing vehicle properly and check proper pin
coupling.
Before going on public roads, check up proper coupling and all locks in the
three-point hitch on the tractor.
Plug the machine lights in the tractor socket in rear and check up functions of
all lights.
If necessary, remove all mud, especially from tires, before coming to a public
road.

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Motor Vehicle Construction and Use Regulations
1. 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.
2. At public road transport the machine rear must be completed with a portable
set of rear lamps and reflector glasses supplied by the manufacturer.
3. Under conditions of very low visibility any public road transport is not
allowed.
4. Any public road transport without this portable set of rear lamps and reflector
glasses is not allowed –these lamps must always be turned on.
5. This portable set should comprise:
-2 plates with red-white hatching with reflecting surface
-2 rear combined lamps with side, stop and direction indicator lights
-2 rear triangular red reflector glasses
-1 warning triangle for marking of slow-moving vehicles
Should the tractor speed be higher than 40 km/h, then the warning triangle for
slow-moving vehicles is unnecessary.

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6. 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.
7. At public road transport this machine must be lifted up in its transport
position, see instructions in this manual.
8. The transport position means that the machine is lifted up; clearance height
under its bottom should be approximately 300 –400 mm; the PTO drive is
turned off; the turnable discharge duct is folded down and mechanically
blocked; the hinged part of the loading chute is lifted up and mechanically
blocked; all the portable lamps are plugged in the tractor 7-pin socket.
9. While working on public roads, the amber light on the tractor cab must be
turned on.
10. The max. permissible speed of the machine for transport on public roads is not
explicitly specified –a valid value, see the max. permissible speed as specified
for the given tractor.
11. Should the max. speed sign on the tractor be covered by the coupled machine,
then it should be attached to the left plate on the machine rear.
12. Always before coming to a public road it is necessary to remove all mud,
especially from the tractor tires and accumulated sediments from the machine.
13. At public road transport the driver must keep the utmost diligence due to the
fact that the rear part of the coupled machine swings out while manoeuvring.
14. At public road transport the tractor driver must keep also all local regulations
valid for public roads.

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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.
1
2
3
4
5
Read this operating
manual before use.
Always follow the
manual while
maintaining,
servicing or
repairing the
machine and take
always the switch
key out of ignition.
Do not stand
between tractor and
equipment while
coupling.
Warning! It swings
out while turning.
Warning! Rotating
parts - accident risk.

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6
7
8
9
10
Warning! Hot parts.
Warning! Turning
part is running out.
Warning! Ejected
objects hazard. Keep
away.
Warning! Close all
guards before
starting the machine.
Wear personal
protective
equipment.
11
12
13
14
15
Keep safety distance.
Warning! Risk of
high-pressure liquid
leakage
Warning! Rotating
rolls. Pull-in hazard.
Warning! Hazard of
extremity injury by
rotating part
Warning! Accident
risk.
The user is obliged to keep all the work safety symbols legible, clear and
undamaged. In case of any damage or illegibility ask your local dealer or
an authorised service for a new relevant pictograph.
Residual Risks
OIL PRODUCTS
Hydraulic oil can be injurious to the skin - wash it off as soon as
possible. If taken internally, seek immediate medical attention. Refer to your local
fuel supplier for the MSDS sheet.

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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.
HOT PARTS
Some machine components (rotating parts, metal parts of hydraulics, hydromotor
etc.) can get extremely hot from operation. To prevent severe burns, do not touch
these areas while the machine is still running - or immediately after it is turned off.
ELECTRICAL SHOCKS
Never touch electrical wires or components while the machine is still running -
they can be sources of electrical shocks.
ROTATING CHIPPING WHEEL
When the drive is turned off, the chipping wheel could continue to rotate for a
short while. Its teeth are sharp and could cause damage or injury even while not in
motion.
PERSONAL SAFETY
The following personal protective equipment (PPE) must be worn by the person
operating this machine and also all personnel within a 20 metre radius of the
machine:
-forestry safety helmet as to EN 397 fitted with a visor as to EN 166
-heavy duty gloves as to EN 388
-full ear protection as to EN 352-3
-close fitting heavy-duty fully protecting clothing
-steel toe protection boots as to EN ISO 20346
-dust mask if working under dusty conditions.
NOISE
The operating noise level depends on the given tractor type. Before putting the
machine into operation the user is obliged to take corresponding measures
accordingly.

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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. Do not work in confined areas and, if in doubt, wear a
respiratory mask in addition to the PPE already described. Seek professional advice
if you are unsure what you are dealing with.
LIGHTING
Operate only at daylight or with sufficient lighting in the workplace.
Transport of Product/Handling
-This product is delivered completely mounted and attached to a wooden pallet
(or loaded in bulk without a pallet).
-While handling you may use a lift truck.
-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. At handling
the coupled machine does not restrict the tractor stability.
-Any work with the chipper is supposed on slopes with gradient up to 8oonly.
Precautions in Design
This product is equipped with hoods and covers protecting rotary and hot parts
against touching. Protective covers are usually fixed, bolted down on framing.