Laski FZ560T-RC User manual

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OPERATING INSTRUCTIONS
TRACTOR-MOUNTED STUMP CUTTER
LASKI FZ560T-RC
FZ560 T-M
Orig. version: 5. 2010

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Foreword
Thank you very much that you have just purchased our product, the stump cutter FZ560T. Our
company has been engaged in production of equipment for stump cutting, wood residue 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 innovations of the Laski manufacturing assortment have been crowned by the most
important awards in the company’s history, the golden medals Grand Prix, gained for its
complete family of products at the international shows Techagro und Silva Regina in Brno:
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 further 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 its 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
P r o d u c t I d e n t i f i c a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
W o r k S a f e t y In s t r u c t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . 8
Utilisation ............................................... 8
Not Allowed Use ....................................... 8
Generally................................................. 9
Work Safety Symbols .................................14
Precautions in Design ................................15
Controls .................................................16
Use ................................................... 18
Transport Safety.......................................18
C a r d a n S h a f t A d j u s t m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9
Storage ..................................................20
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 0
Coupling to Tractor...................................20
Putting into Operation ...............................22
P u t t i n g o u t o f O p e r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4
Emergency Situations ................................24
Cutting ..................................................24
Noise and Vibrations ............................ 26

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T e c h n i c a l D e s c r i p t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6
Technical Parameters.................................28
Maintenance........................................ 29
Lubrication .............................................30
R e p l a c m e n t o f B l a d e s a n d R e g r i n d i n g . . . . . . . . . . . . 3 1
Maintenance Intervals................................33
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 . . . . . . . . . . . . . . . . . . . . . . 3 3
Waste Disposal ........................................34
Warranty ............................................ 34
M a i n t e n a n c e a n d S e r v i c i n g . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

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EC Conformity Declaration

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Product Identification
Our product is identified with its serial number stamped both on the type plate and on the
chassis.
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: ...............................................................
The product type plate is located on the chassis.
It includes: - manufacturer's data
- type
- serial number
- year of manufacture
- weight of machine
- product designation (CE)

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Work Safety Instructions
Utilisation
This product is designed for cutting a stump with its above-ground part up to +700 mm and its
under-ground part in a max. depth of -600 mm under the ground level while being coupled to a
three-point hitch, category 1 or 2 and to the PTO shaft assembly for 540 rpm.
This stump cutter is designed for working in the field with max. inclination as allowed for the
tractor.
This stump cutter is designed both for manual and remote control operating at transmitter
frequency ranging from 433,05 to 434,79 MHz.
Not Allowed Use
-This machine cannot be used for cutting of dozy stumps which could be released and
pulled out by the blades.
-Avoid any cutting if there can be some foreign matters and objects, such as metal, glass
cullet, stony debris, ceramics etc. hidden in the stump.
-It is strictly forbidden to start working with removed guards, particularly with a missing
rear guard of the cutting head or if this guard does not cover the head properly.
-It is not allowed to use the cutter if other persons are within the hazardous area.
-It is strictly forbidden to work with the
coupled machine crosswise to the
hillside.
The hatched space means the
hazardous area around
the tractor and the cuter.
Te centre of circles, as a centre of the
hazardous area, is in the centreline the
tractor and the cuter and in the connecting
line of the bottom draw rod pins.
Any working crosswise to the hillside may
bring instability of the tractor due to
cutter jib swinging and eventual hits of the
blades on the stump.
10 m
50 m
60
o
60
o

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Generally
-Do not use this machine without prior reading this manual. The user/owner of this machine
is obliged to instruct attendants about relevant instructions for its operation in a
demonstrable way.
-This manual should be available/accessible for attendants any time.
-This machine is allowed to be operated only by an operator who is over 18 yrs old,
physically and mentally capable and demonstrably instructed about its operation. In
addition to that, he should have a respective driver's license, group B or T (according to a
tractor type).
-While working, wear always personal protective equipment - protecting shield or goggles,
protective gloves, working shoes and working clothes properly buttoned. Avoid wearing
free parts, such as ties, scarves and shawls, belts etc. Use hearing conservation in
dependence on the tractor noise level.
-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.
-While working, the operator should stand:
-- type FZ 560 T-M: behind the cutter rear guard in its working and secured position;
-- type FZ 560 T-RC:
at least 3 m away from the cutting head, see fig.
-Keep this machine beyond children's and unauthorised persons' reach. Avoid their
presence while working.
-Type FZ 560 T-RC: before use, observe the working area if there is no similar equipment
in service which may interfere with the cutter operation or if the cutter itself cannot
interfere with the other appliances and health care facilities.
-Observe the working area. If any person, children or animals approach while cutting, then
stop working immediately.
-Before working learn all functions of individual controls and safety elements and carry out
functional checks before any use.
-Make sure if necessary operating and ancillary space is free and safe.
-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).
-Before working make sure if the bottom edge of the adjustable guard covers the cutting
head properly.
-While working keep an eye on chips gathering behind the cutting head. In case of
excessive accumulation, stop the PTO shaft drive and wait for running the head out. When
the head stops, remove excessive chips.
-This manual describes problems and faults that may occur at work and that could 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.
-Do never any technical changes or any actions that are neither given in this manual nor
allowed by the manufacturer. This machine, if not correctly installed or adjusted, may run
without problems now but in the future any of important parts could get out of order or do
fatal damage.
-For replacement of worn or damaged parts use always original spare parts only.

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-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.
-Do not put any objects or tools on the machine.
-Do not leave the machine unattended – pull out the tractor ignition key.
-When handing the machine over to another person make sure if all controls, guards and
other safety elements are complete and properly installed. They serve for your safety.
-Keep the given intervals for checks of bolted joints.
-Always after work clean up all parts of the machine (brush, cleaning rag).
-Any actions or servicing on the machine are allowed to be done only if the tractor engine is
turned off, its ignition key is pulled out and the given tractor should be blocked properly
against unwished motion (parking brake, scotch blocks). Furthermore, the coupled
machine, respectively the three-point linage, should be blocked against unwilling sinking.
If the cutting head should remain lifted then block the machine jib separately.
Type FZ 560 T-RC: turn off the remote control box and pull out the ignition key.
-When handing the machine over to another person make sure if all controls, guard
emergency switches and other safety elements are complete, functional and properly
installed. They serve for your safety.
-Do not use or attempt to start the stump cutter without the cutter guards, engine covers and
access covers securely in place. Failure to do so may result in personal injury or loss of life
-Keep the given intervals for checks of bolted joints.
-Keep the battery of the remote control box fully charged.
-Do not use petrol and similar oil products as a cleaning agent.
-Keep the machine beyond reach of open fire.
-Any transport of persons or of any load on the machine is not allowed.
-Some parts of the machine may run warm (gearings, hydraulics). Do not touch them when
the machine is still running or having been just stopped.
-Do not let the input shaft running in speed exceeding its rated value.
-The joint shaft has to be always covered by effective guards with fixing chains.
-Do not attempt to detect contingent hydraulic oil leakage directly by hand. Use always a
piece of cardboard, wooden board etc. – risk of injury by oil under high pressure.
-Carry out regular checks of hydraulic hoses for their actual condition (damage, cracks,
wear).
-While being coupled to a tractor, do not use the machine in confined or ill-ventilated
spaces. Exhaust gases from the tractor include also toxic carbon monoxide which is
colourless, odourless and tasteless.
-Do not use the machine under conditions of low visibility, especially at foggy weather,
when you may overlook persons coming.
-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.
-In case of any uncertainty with operation of this machine ask your dealer to show proper
operation in practice.
-While working, particularly while transporting the coupled machine, respect all the
applicable instructions given in the tractor manual.

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-Every training course 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, both of the machine and of the
tractor, particularly after turning the PTO shaft off.
-While cutting, do not enter the space in direction of ejected wooden chips.
Place for attendance with remote control
-While cutting with remote control, the operator should stand at least 3 m away, see fig.
Place for attendance with manual control
-Before any displacement of the machine to another workplace the operator is obliged:
type FZ 560 T-M: to tip up and to secure properly the rear guard to the cutter

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arm; to turn off the cutting head drive and to block the head in safe condition;
- type FZ 560 T-RC: to turn off the remote control box and to hang it up on the supporting
foot framing; to turn off the cutting head drive and to block the head in safe condition;
-Keep this machine beyond children's and unauthorised persons' reach. Avoid their
presence while working.
-Observe the working area. If any person, children or animals approach while cutting, then
stop working immediately.
-Be aware of ejected particles. They have substantial kinetic energy. If the wooden material
to be cut contains not allowed parts, such as metal, sand, glass etc., then such objects can
reach a longer distance than wooden chips. Before working make sure if the bottom edge
of the adjustable guard covers the cutting head properly in order to reduce unwished
ejection.
-The 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).
While working the operator is obliged:
oto use only such a cutter which is in optimal operating condition, not damaged through
transport, storage or from previous operation,
oto check up the working area, respectively soil bearing capacity, before work,
oto avoid working on wet terrain, steep slopes and close to trenches with risks of instability,
oto avoid working with inclination exceeding the limit as allowed for the tractor,
oto check functions of all controls and safety elements before putting the machine into
operation,
oto avoid disturbing other people with noise, exhaust gases or ejected flying particles (at
windy weather),
oto keep traffic rules and local regulations when going or working on or nearby public
roads.
oDo not leave the machine unattended – pull out the tractor ignition key.
oWhile working, wear always personal protective equipment - protecting shield or goggles,
protective gloves, working shoes and working clothes 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.
oKeep work safety symbols in proper order.
oCheck out the stump to be cut and remove all undesirable objects. If you see such particles
in ejected chips stop working immediately.
oIn case of any problems and faults at work do not hesitate and stop the machine
immediately. Any fault, particularly on rotary parts, may cause fatal and dangerous
situations.
oThis manual describes problems and faults that may occur at work and that could 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.
oDo never any technical changes or any actions that are neither given in this manual nor
allowed by the manufacturer. This machine, if not correctly installed or adjusted, may run

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without problems now but in the future any of important parts could get out of order or do
fatal damage.
oPay regular attention to all joints and bolts. Keep them properly tightened.
Motor Vehicle Construction and Use Regulations
This stump cutter 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 actual
front axle load does not fall under 20% of its gross weight.
At public road transport the stump cutter rear must be completed with a portable set of rear
lamps and reflector glasses supplied by the manufacturer.
Any public road transport without this portable set of rear lamps and reflector glasses is
not allowed – these lamps must always be turned on.
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
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
Operating Instructions.
The transport position means that the stump cutter is lifted up; clearance height under its
supporting feet is approximately 300 mm; the cutter jib with the cutting head suspension is
retracted to its minimum length; the supporting console is attached to the suspension; the
PTO drive is turned off; all controls are set in their neutral position; all the portable lamps
are plugged in the tractor 7-pin socket.
While working on public roads, the amber light on the tractor cab must be turned on.
The max. permissible speed of the stump cutter for transport on public roads is not
explicitly specified – a valid value, see the max. permissible speed as specified for the
tractor.
Should the max. speed sign on the tractor be covered by the coupled stump cutter, then it
should be attached to the left hatched plate on the cutter rear.
Always before coming to a public road it is necessary to remove all mud, especially from
the tractor tires and accumulated sediments from the cutter.
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.
At public road transport the tractor driver must keep 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 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.
1 2 3 4 5

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6 7 8 9 1 0
1. Read this operating manual before use.
2. Warning! Cutting head is running out.
3. Warning! Keep away – ejected objects hazard.
4. Warning! Keep away – this equipment swing out.
5. Warning! Keep extremities away – squeeze hazard.
6. Warning! Rotating parts – pull-in hazard.
7. Warning! Close all guards before starting the machine.
8. While working, wear personal protective equipment.
9. Keep safety distance.
10. Warning! Risk of high-pressure liquid leakage.
Precautions in Design
This product is equipped with guards protecting the operator against unwished contact with
moving parts of the machine. These guards are either fixed or bolted down and attached to the
machine frame.
The cardan shaft guard is rigid and telescopic, covering the crucial part intended for cutting
head driving.

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The hydraulic locks on hydraulic cylinders are designed for limitation of unwanted sinking in
case of a sudden failure or leakage in the hydraulic system.
Type FZ 560 T-M:
Face shield for attendance of hydraulic distributor.
Controls
This stump cutter can be operated by means of controls in the tractor cab through the three-point
linkage, see instructions for the PTO shaft and in the tractor manual.
Type FZ 560 T-RC:
1. Cutter arm left / right
2. Cutter arm up / down
3. Cutting head guard up / down
4. Jib up / down
5. Mode switching
6. Green LED – analog mode; LED does not shine:
digital mode
7. STOP switch
8. LED for operation and battery condition
9. Activation switch

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Type FZ 560 T-M:
1. Cutting head guard up / down
2. Jib control: up / down / right / left
3. Cutting head suspension forward / backward
Common Cutter Controls
Flow limiter installed on the hydraulic cylinder for jib control. This limiter is preset by the
manufacturer and further (contingent) readjustment can be done according to the tractor being
actually used. It is in fact a one-side throttling valve reducing the jib speed downwards.
Flow limiter installed on the hydraulic cylinder for
cutting head suspension control. It is intended for
flow control according to actual wood quality to be
cut.
Valve for response speed control of
hydraulics

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It is intended for reduction of oil flow going from the tractor
into the cutter hydraulic system. This reduction is limited by
actual capacity of the tractor oil pump.
Use
Transport Safety
This stump cutter is delivered completely mounted and ready to use. It is equipped with a
supporting feet frame intended for easier putting the machine aside on flat surface.
The cutter type FZ 560 T-RC includes a separate remote control box with its battery charger.

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After detachment of the cutter its supporting feet must be extruded properly and locked against
loosening. This supporting frame is designed for keeping stability after putting the cutter aside.
Cardan Shaft Adjustment
Before use it is necessary to check up cardan shaft adjustment as to its proper length. The cardan
shaft length must be always adapted to the given tractor type.
Check up the cardan shaft length as follows:
-couple the cutter in the top and bottom draw rods of the tractor three-point linkage,
-lift up the linkage (for adjustment the
cutter must be lifted in its top position)
-mark the position of the telescopic guard
edge,
-having coupled and locked the machine
to the tractor, connect the cardan shaft
(extend it as necessary),
check up clearance between the guard edge
and its previously marked and retracted
position: it should exceed 200 mm,
-let the linkage slowly sink in its bottom position (supporting feet frame in contact on the
ground),
-let the cutter arm sink in its bottom position with the cutting head hinge as close as
possible to the tractor (hydraulic cylinder fully extruded),
-swing out the jib to the left or to the right in its utmost position.
The bottom position is in fact the utmost position in which the cutting head can
reach 600 mm (max. operating depth). For
this purpose it will be useful to have
the machine standing on the edge of a loading
ramp. In this case it will be
possible to reach the real bottom position.
Again check up clearance between the guard
edge: min. clearance should exceed 20 mm,
see fig.
If not, the cardan shaft should be shortened
accordingly, see instructions of the cardan
shaft manufacturer. Otherwise it may bring
damage on the shaft or even on the tractor.

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Storage
Store the stump cutter always in dry (sheltered) space to protect it against weather effects.
-Keep the stored machine beyond unauthorised person's reach.
-Before storage clean all parts of the machine. Use pressure water for cleaning.
-Remove any spilled oil immediately and wipe off all oily spots.
-Exchange all damaged or worn parts. Use always original spare parts. For servicing or
spare parts contact your dealer or an authorised service.
-Do not apply any grease or similar agents on elastic hydraulic hoses.
-Put the machine aside always on flat and solid surface.
-Do not put any objects or tools on the machine.
Before Putting into Operation
-Before the first putting into operation check up the machine for contingent damages and
completeness after its transport and storage.
-Check out tightening of bolted joints, especially of guards and completeness of other parts.
-Check out the cutting head for its condition (attachment and wear of blades, bolts, etc.). If
the cardan shaft is not coupled yet, then it is possible to turn the cutting head.
-Check out condition of the blades. Replace them if worn or damaged.
-Should any damage on the cutting head be detected, it is forbidden to go on working.
-Check out movability of turnable parts respectively functionality of the machine.
-Check out work safety labels for completeness and legibility. Replace any damaged and
illegible label, if necessary.
-Grease bearings and sliding parts according to the Lubrication Plan.
-Check out the hydraulic system for condition and contingent leakage.
-For replacement use always original spare parts. The rotary parts, such as cutting head
and blades, should be balanced properly.
-All blades should be replaced always at the same time as a set. Pay special attention to
their fixing bolts. Replace them if worn or damaged.
-Do not use petrol or similar inflammable matters as a cleaning agent.
-For tractor engine operation use Diesel fuel only (winter Diesel fuel according to season).
-It is strictly forbidden to do any technical changes on the machine.
-If any adjustment is required, do it always at standstill only. Remember blocking the
jib/three-point linkage against unwilling sinking.
-Check out condition and proper tightening of V-belts. Too much slack brings negative
impact on their service life.
-It is strictly forbidden to start the machine with removed guards.
-Type FZ 560 T-RC: remove the battery from the remote control box and let it recharged
(incl. a reserve battery, if any).
-Put the battery in the remote control box and check out all remote control functions.
Coupling to Tractor
Coupling of this cutter 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. For the category II: attachment from the external side