Laski LS 150 D User manual

OPERATING INSTRUCTIONS
CHIPPER LS 150 D
LS 150 DW
Version 06.2010

2
Foreword
Thank you very much that you have just purchased our product, the chipper LS 150 D.
Our company has been engaged in production of equipment for wood residue crushing
and disposal for many years and has gained considerable experiences in this field.
Quality of our small and also powerful machines has been proved in 40 countries
worldwide we export to.
Permanent innovations of the Laski manufacturing assortment have been crowned by
the most important award in the company’s history, the golden medal Grand Prix,
gained for its complete family of chippers and shredders KDO and LS at the
international show:
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 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
E C C O N F O R M I T Y D E C L A R A T I O N ............................................5
WORK SAFETY INSTRUCTIONS..........................................................................9
Utilisation ............................................... 9
Not Allowed Use ....................................... 9
Generally................................................. 9
Work Safety Symbols.................................14
T r a n s p o r t o f P r o d u c t / H a n d l i n g . . . . . . . . . . . . . . . . . . . . . 1 6
Precautions in Design................................17
USE.............................................................................................................................22
Transport Safety.......................................22
Storage...................................................23
B e f o r e P u t t i n g i n t o O p e r a t i o n . . . . . . . . . . . . . . . . . . . . . 2 4
Putting into Operation ...............................25
P u t t i n g o u t o f O p e r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9
Emergency Situations ................................29
Chipping.................................................30
NOISE AND VIBRATIONS.....................................................................................32
TECHNICAL DESCRIPTION................................................................................33
Chipping Device.....................................33
Driving Engine.......................................34
Chassis ................................................34
Technical Parameters ..............................34

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MAINTENANCE......................................................................................................35
Lubrication ...........................................36
Blade Grinding.......................................37
A d j u s t m e n t o f c h i p p i n g d e v i c e . . . . . . . . . . . . . . . . . . 3 8
N O S T R E S S S y s t e m – S p e e d R e g u l a t i o n . . . . . . . 3 8
O v e r v o l t a g e p r o t e c t i o n o f t h e N o s t r e s s s ys t é m
.......................................................41
Maintenance Intervals .............................42
F a i l u r e s a n d T r o u b l e s h o o t i n g . . . . . . . . . . . . . . . . . . . . . . 4 4
Waste Disposal.........................................45
WARRANTY.............................................................................................................46
M a i n t e n a n c e a n d S e r v i c i n g . . . . . . . . . . . . . . . . . . . . . . . . . 4 7

5
EC Conformity Declaration

6

7

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Pr o duct Ident i fica t i on
Our product is identified with its serial number stamped both on the type plate
and on its chassis. Pay your attention also to the type plate on the engine.
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:
Engine type:
Serial number of engine:
Chassis type:
Serial number of chassis:
Dealer's address:
Address of authorised service:
Date of delivery:
Warranty expiration date:
Interruption of warranty period:

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Work Safety Instructions
Utilisation
UtilisationUtilisation
Utilisation
This chipper is designed for disposal of wood waste, twigs, bark, 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. The chipper can dispose all these materials with diameter up to
150 mm or flat boards and plates with thickness up to 60 mm. The wooden
pieces must be free of metal, glass and other similar objects.
The chipper should be controlled and operated by two operators who in turns
load materials to be chipped in a loading chute. For transport the chipper
should be coupled to transport means equipped with towing brackets with a
joint ball of size ISO 50.
Not Allowed Use
Not Allowed UseNot Allowed Use
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).
Generally
GenerallyGenerally
Generally
-This machine is allowed to be operated only by an operator who is over 18
yrs old, physically and mentally capable and demonstrably instructed with
its operation.
-A towing vehicle driver should have a respective driver's license.
-The given towing vehicle should be approved for transport on public roads
and equipped with a respective towing bracket for vertical coupling load up
to 100 kg and weight of a braked trailer up to 1200 kg.
-While using the machine, especially at transport, the attendant/driver must
respect instructions given by the chassis manufacturer PARAGAN s.r.o. in
its separate manual.
-Training courses for attending personnel should include also practical
operation under supervision of an experienced person or your dealer and
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.
-By pushing the concerned controller in direction of material input the
machine should stop material loading and by its next pushing the loading

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rolls should turn back. The controller frame has to be advanced in front
of the hinged loading chute edge so that the attendant stops the
loading rolls or let them turn back at pushing the frame by leg!
-It is strictly forbidden to change or to set the controller frame so that the
STOP position is under the loading chute edge.
-While chipping it is not allowed to enter the area of ejected flying wooden
chips.
-The end piece of the discharge duct can be set only in the angle up to 60
o
to longitudinal axis (upper turnable part) opposite to the loading chute. Do
not direct it toward the attendant's place.
-While working the chipper should rest on supporting legs on the loading
side and be braked by means of its parking brake. If uncoupled from a
towing vehicle it should be based on its front wheel. Travel wheels should
be slightly unloaded by lowering of the front wheel.
-It is forbidden to let stand the chipper on its travel wheels only while
chipping.
-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 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.
-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. Therefore direct the discharge duct in order to regulate
ejecting.
-Instructions for use of the engine operation and the trailing truck are an
integral part of this manual.
While chipping the operator is obliged:
oto use only such a chipper which is in optimal operating condition, not
damaged through transport, storage or from previous operation,
oto check functions of all controls and safety elements before putting the
chipper into operation,

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oto avoid disturbing of other people with noise, exhaust fumes or ejected
flying particles (at windy weather),
oto keep traffic rules and local regulations when going or working on or
nearby public roads,
oto turn the machine off if the discharge duct is clogged.
oClean the duct at standstill only. For cleaning use only suitable hooks or
bars to release pressed materials. After repeated putting the chipper into
operation let the machine run idle in the chipping mode to empty the whole
discharge ducting. If proper cleaning is required then take always the
switch key out of ignition before removing hoods.
oWhile working, never lean over the loading chute and never push wooden
materials with your hand or foot only. Use always a wooden stock or a bar
to push materials between the loading rolls.
oWhile 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.
oIn case of two attendants it is necessary to make simple signals clear
before working and to appoint one who will manage the work.
oIf any object, not allowed to be chipped, falls down into the loading chute,
do not try to pull it out with your hand. It is hazardous for your health and
operational safety. Turn always the machine off.
-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.
-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
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.

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-Do not 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 with pressure water. 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 fuel
tank, the hydraulic oil tank and the exhaust manifold. Stop working if such
deposits exceed 1 mm.
-Any servicing can be done only if the machine was put out of operation
and its battery was disconnected.
-Avoid any random start - disconnect the plus pole of the battery.
-Fill up the fuel tank before working and only if the machine is turned off. To
fill up the fuel tank use always a proper filling funnel with an extension.
-Do not fill the fuel tank while the engine is hot or still running.
-Do not start if some fuel has been spilled.
-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. 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 change the engine adjustment, especially its speed regulator.
-Be careful at battery handling.
-Warning! The battery contains sulphuric acid that could cause burns.
Rinse all stained spots with water properly and wash them with soap.
-The battery must be always installed and fixed properly in its holders.
-Do not start the machine in confined or ill-ventilated spaces.
-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 damaged chipping device (out-of-
balance, vibrations while running).
-While working, the chipper should be blocked against unwilling motion (pin
coupled).
-While coupling the chipper, do not stand between its towing bar and a
towing vehicle. Do not stand behind a towing vehicle while backing. Ask
other person to help you at coupling.

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valid only for LS 150 DW: - it is strictly forbidden to open the cooler cap
while the cooling liquid is still hot, particularly just after having put the
engine off – risk of scalding from hot liquid.
-discharge the cooling liquid only if it is cooled down
-do not touch the engine if it is still running or having been just stopped –
risk of burns
-keep your hands beyond range of the cooling fan while turning
-it is strictly forbidden to start the engine with removed guards on the
chipping device
-the chipping rotor starts turning simultaneously!!
Before transport on public roads
-Set the machine in the transport position, i.e. its loading chute backwards,
discharge duct forwards, tilted and blocked against motion.
-Couple the chipper to a towing vehicle properly and check proper coupling.
-Check locks of supporting legs and a tilting part of the loading chute.
-Plug and check traffic lights of the chipper.
-Keep chassis in proper order.
-Respect all instructions for use of the PARAGAN chassis manufacturer.
Transport on public roads
-Any transport on public roads is allowed only with the engine off.
-Any transport of persons or of any load on the machine is not allowed.
-Never exceed max. allowed transport speed.
-Putting the chipper aside block it against unwilling motion by means of its
parking brake system and scotch blocks.
-Pay attention to handling performance on roads. Cornering, turning and
braking make new demands on driving.
-If necessary, remove all mud, especially from tires, always before coming
to a public road.
-Adjust driving speed to ambient conditions, especially at turning, obstacle
crossing, exits to plots etc.
-This machine is approved to transport on public roads. Some restrictions
are given in your registration papers. Take these papers always with you.
-This chipper can be towed also by a car. Before coupling to a car check
up the allowed weight on the towing bracket and compare it with the
weight of your chipper. If its weight is higher than the allowed value of a
towed trailing truck then its coupling to a car is forbidden
. A towing vehicle
should be approved for transport on public roads and equipped with a
respective towing bracket (with a ball ISO 50) for vertical coupling load up
to 100 kg and weight of a braked trailer up to 1200 kg.

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Note: Be aware that traffic rules and regulations in different countries may
differ.
Work Safety Symbols
Work Safety SymbolsWork Safety Symbols
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 meaning is a precondition for your
work safety.
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.

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1 2 3 4
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.
Warning!
Electric current
is present on the
machine.
Start the
machine with
the switch key
only. Do not
short circuit its
contacts.
5 6 7 8
Warning!
Fuel is
flammable!
Keep open fire
away!
Warning!
Hot parts of
exhaust
manifold and
engine.
Warning!
Turning wheel is
running out.
Warning!
Ejected objects
hazard. Keep
away.

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9 10 11 12 13
Warning!
Close all
guards before
starting the
machine.
Wear
personal
protective
aids.
Keep safety
distance.
Warning!
Risk of high-
pressure
liquid leakage.
Warning!
Rotating rolls.
Pull-in hazard.
Positions 4 and 5 are located under the engine hood close to the starter and on
the fuel and oil tank.
Transport of Product
Transport of ProductTransport of Product
Transport of Product/Handling
/Handling/Handling
/Handling
-This product is delivered completely mounted and fitted on its chassis. The
chipper can be towed by towing means which, according to its total weight,
even a car can be.
-Handling the chipper is supposed only at coupling/uncoupling to/from a
towing vehicle.
-Any chipper displacement only by hand is not allowed.
-While putting the chipper aside, block it against unwilling motion by means
of its parking brake system and scotch blocks. On flat surface it is
sufficient to block only one wheel from both sides.

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-Uncouple the chipper always on compact, flat and sufficiently bearing
surface only.
-It is not allowed to put any objects or tools on the machine. Never pile
chippers up on each other.
When having uncoupled the chipper, protect the hitch against
impurities, especially sand etc. Before coupling first clean the joint ball
and grease it slightly. Use a supporting jockey wheel for putting the
chipper aside.
Precautions in esign
Precautions in esignPrecautions in esign
Precautions in esign
This product is equipped with hoods and covers protecting rotary and hot parts
against touching. Protective covers are usually fixed, bolted down on framing.
A hinged hood of the engine
c
ompartment can be locked to prevent
it against unwished access.

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An ignition box for starting with a
removable switch key. Confusion of
ignition keys is not possible. When
starting, turn the key in the START
position. The engine goes on
running in the RUN position. This
ignition box does not allow repeated
starting if the key remains in the
RUN position but it must be turned
back in the initial OFF position.
A safety frame
for material loading
serves as an actuator for the loading
rolls control, i.e. stopping or reversing.
On
ce being pushed the chipper stops
loading motion immediately, the next
pushing brings reverse turning of
the
loading rolls.
Dangerous space behind the
loading rolls is protected with a
hinged cover and by a terminal
switch which blocks the driving
engine before starting if the cover
remains opened. Once opened the
driving engine stops immediately.
This cover is locked with two bolts
that should be properly tightened.

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Dangerous space of the chipping
wheel is secured by a terminal
switch. To swing the discharge duck
away or to open the upper half of the
chipping wheel guard it is necessary
to unlock the guard and move it in the
arrow direction, see figure. It is not
possible to put the machine into
operation if the guard remains
opened.
A safety pin of the chipping device
rotor serves for rotor blocking at
blades exchange and servicing. The
pin is chained on edge of the
machine. A hole for the pin inserting
is covered with a rubber stopper.
The chipping device is blocked if the
pin is inserted into a bush on the
rotor.
A terminal switch of a hinged part of
the loading chute turns the engine
off if the chute is tilted.

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Controls
The chipper can be controlled by means of particular controls on the control
board and under it.
Ignition box LS 150 D
Upper part
- running hours counter
- charge indicator lamp
- switch key
- NOSTRESS switch
Ignition box LS 150 DW
Upper part
- box with indicator lamps
- running hours counter (daily and total
hours)
- fuse
- NOSTRESS switch