Farmi Forest FARMI 4571 Guide

FARMI 4571 / FARMI 4581
Farmi Forest Corporation
Ahmolantie 6
FIN-74510 Iisalmi, Finland
Tel. [phone]
Fax. [phone]
www.farmiforest.
OPERATION, MAINTENANCE AND SPARE PARTS MANUAL
READ THIS OPERATION AND MAINTENANCE MANUAL CAREFULLY
BEFORE USING THE MACHINE
FROM MACHINE: 3590439 03592420 D-EN-150113-ER
HYDRAULIC CRANE
TRANSLATION OF THE INSTRUCTION MANUAL

FARMI 4571 / FARMI 4581
3
WARNING SYMBOLS IN THIS MANUAL
• imminent danger which could cause serious personal injury or death
• danger which could cause personal injury
• conditions or misuse that could damage equipment or machinery
NOTE! • reminders, such as for performing checks or carrying out maintenance
or repair procedures
INTRODUCTION
This manual includes the information and maintenance instructions required for operating the machine in the
optimal manner.
Although you have experience in using this kind of machinery, read the operation and maintenance instruc-
tions carefully since they include information enabling ecient and safe operation. Regular maintenance is the
best way to guarantee the ecient and economical performance of the machine.
Each and every operator must read, understand, and follow all safety instructions
and procedures.
CUSTOMER FEEDBACK
We are happy to receive your opinions and suggestions for improvements by mail, fax or e-mail.
All implemented suggestions for improvements will be rewarded.
WARNING!
!
CAUTION!
!
!
DANGER!
CAUTION!
!
PRODUCT WARRANTY
Farmi provides a 12-months warranty on all Farmi products.
Register on our home page (www.farmiforest.) under FeedBack (”Product Registration” form) within 30 days
after the receipt of the product to get full product warranty and additional information on your product. If it
is not possible for you to register via internet, please register as follows: Complete the registration form on the
last pages of this manual and return it to us within 30 days after the receipt of the product.

FARMI 4571 / FARMI 4581
4
Manufacturer:
Farmi Forest Corporation
Ahmolantie 6, FIN-74510 IISALMI, Finland
Person authorized to compile the technical documentation:
Name: Heikki Sirviö
Address: Ahmolantie 6, FIN-74510 IISALMI, Finland
Commercial name:
Farmi
Machine denomination:
Hydraulic crane
Machine type:
FARMI 4571 / FARMI 4581
Machine series number:
Herewith, we declare that the machine brought into circulation conforms with the
pertinent requirements of the Machinery Directive 2006/42/EC and the EMC Directive
(directive relating to electromagnetic compatibility) 2004/108/EC.
The following harmonized standards have been applied for the conceptional design
of the machine:
SFS EN ISO 12100-1, SFS EN ISO 12100-2, EN 12999, EN 294, EN 982,
EN60204-1, SFS EN ISO 4254-1
Iisalmi 15.1.2013
(Place) (date)
Juha Hallivuori
EC DECLARATION OF CONFORMITY

FARMI 4571 / FARMI 4581
5
When ordering spare parts, please indicate machines type from the machine plate, spare parts order number,
description and quantity required. Example. HK4581, 54561477, slide bearing 1 pc
TABLE OF CONTENTS
PRODUCT WARRANTY 3
GENERAL SAFETY INSTRUCTIONS 6
TECHNICAL DATA 11
STICKERS AND PLATES 13
ASSEMBLY AND MOUNTING 14
COMMISSIONING 15
PRACTICE RUNS 16
DETACHING THE CRANE 16
STORAGE INSTRUCTIONS 17
MAINTENANCE 17
MAINTENANCE TABLE 19
LUBRICATION 20
TROUBLE SHOOTING 21
TESTING THE STABILITY 22
DETERMINING THE STAND-STABILITY BY CALCULATION 22
PRESSURE RELIEF VALVES 24
HYDRAULICS 25
CONNECTING THE MULTILEVER VALVE 26
CONNECTING THE 2-LEVER VALVE, (80 l) 27
CONNECTING THE ON/OFF VALVE (60 l) 28
CONNECTING THE EHC VALVE 29
INSTALLATION INSPECTION RECORD 30
ANNUAL INSPECTION RECORD 31
HYDRAULIC SUPPORT LEGS 32
SLEWING DEVICE 34
LIFTING ARM 36
FOLDING ARM FARMI 4571 38
DOUBLE EXTENSION FARMI 4581 42
FARMI 4581 HYDRAULICS / DOUBLE EXTENSION 44
PENDANT + ROTATOR FR10 45
GRAPPLE PTK21S 46
LEC2/6+2 ON/OFF, 60 l 48
LEC 2/6+2 ON/OFF, 80 l 50
PRODUCT REGISTRATION FORM 54

FARMI 4571 / FARMI 4581
6
GENERAL SAFETY INSTRUCTIONS
These safety instructions are meant for the owners
of FARMI equipment, as well as those who operate,
service or repair it.
The instructions help with:
• using the machine safely, appropriately and eec-
tively.
• identifying, avoiding and preventing potentially
dangerous situations.
The manufacturer supplies an instruction manual,
which must always be available at the place of ope-
ration of the machine. Each user must read the
safety, maintenance and operating instructions
before operating the machine, and comply with
these instructions at all times.
Ensure that every operator of
the machine is familiar with the
content of the instruction manual
and situation-specic safety
instructions, and has been sui-
tably trained before operating
the machine.
The machine complies with technical requirements
and applicable safety regulations. However, incorrect
use, maintenance or repair of the machine may cause
risks.
In addition to the instruction manual, remember to
comply with regulations of the local occupational
health and safety authorities, and with your country’s
laws and decrees.
The manufacturer is not liable for damages caused
by:
• incorrect, negligent or inappropriate use of the
product.
• non-original spare parts.
• normal wear and tear.
• misuse caused by an untrained person’s
improper actions.
• alterations made without the manufacturer’s
permission.
Written authorization must be
requested from the manufacturer
for any alterations to the machine.
STARTING
• Familiarize yourself thoroughly with the use, ope-
ration and controls of the machine and its equip-
ment before starting.
• Familiarize yourself with the capacities and limita-
tions of the machine and its equipment.
• Do not use the machine unless you are completely
familiar with its operation.
• Be aware of the machine’s danger zones.
• During operation, prevent bystanders from entering
the danger zone.
• Ensure that each operator has the necessary safety
equipment, such as a helmet, safety goggles, work
safety boots and suitable protective clothing.
• Never wear loose clothing around moving parts.
Protect long hair!
• Ensure that work is carried out according to the
stipulations of applicable occupational health and
safety legislation.
• Before starting up or using the machine, ensure
that it cannot cause a risk to other people or pro-
perty.
• Perform a safety check on the machine before
every use. If you observe any faults or deciencies,
repair the machine immediately.
• Before operating the machine, ensure that there
are no foreign articles in it.
• Place the machine on a hard, level surface for ope-
ration. In the winter avoid working in slippery areas.
• Before mounting and using the machine, check
the PTO drive shaft for correct condition and
attachment.
• Never use a faulty or decient machine.
CAUTION!
!
CAUTION!
!

FARMI 4571 / FARMI 4581
7
TRANSPORT
• Before driving with the machine, ensure the safe
mounting of the machine. Make sure that the
journals are seating correctly and that the pins are
tight. Check the tension of the lower link stabili-
zers.
• Before driving with the machine, make sure that
the required lamps and reectors as well as the
slow moving vehicle sign are attached correctly.
Moreover, the lamps should be checked for correct
functioning.
• Before driving with the attached machine, make
sure that the hydraulic unit of the machine is
depressurized (unless otherwise instructed in the
operating instructions).
• When driving on public roads, always observe the
valid trac regulations. The travel speed must be
adapted to the specic conditions.
• When driving, please take into consideration the
additional mass resulting from the machine’s
weight. It may aect the reactions, the steerability
and the braking function of the tractor.
• Please note that the machine rear sways when
turning.
• Pay attention to the machine’s height near bridges
or other height restricting objects.
• When backing o, the machine may obstruct the
rear view. Exercise extreme caution. If necessary,
ask a agman to help you; he can indicate the
required distances.
• It is prohibited for other people to ride on the
machine.
OPERATION
Many occupational accidents
take place in abnormal
circumstances. Therefore it is im-
portant to take into account all
the possible circumstances that
may arise during operation of
the machine.
• Depending on the machine’s type, it will have
diverse safety devices and protectors. These are
meant to protect the machine and its operator,
and they must never be removed or altered. Never
start up or use the machine without all the safe-
ty devices and protectors in place. Also check the
universal joint’s safety equipment and joins.
• Never insert any body part into the machine with
the engine running.
• If any faults arise that may jeopardize occupatio-
nal safety, turn o the machine.
• During operation, the machine’s operator is res-
ponsible for safety in the whole work area. Work
may not be carried out in the presence of any fac-
tors that jeopardize occupational safety.
• Exercise extreme caution when hitching / unhit-
ching the machine from a tractor/trailer.
The machine’s operator must
have constant, unobstructed
visibility of the work area. If this
is not possible, the operator must
work with an assistant.
• Look out for moving parts when the machine is in
operation.
• Secure the machine against unauthorized and
accidental operation (e.g. moving when parked)
whenever it is left unattended.
• Never leave the machine running unattended.
• Avoid causing fast, stroke-like loading.
• Never exceed the given operating values.
• All safety and warning signs on and in the machine
must be legible and intact.
• The machine may not be operated by persons
who are unwell or under the inuence of drugs or
alcohol.
MAINTENANCE
• The machine may only be serviced and repaired
by professionals.
• Electrical and hydraulic faults may only be repaired
by authorized professionals.
• In cases requiring welding, contact the manufac-
turer.
• Turn o the tractor engine and disconnect the
universal joint before beginning service or main-
tenance actions.
• Before any maintenance work, turn the main power
switch of the tractor to OFF.
• Ensure that there is no pressure in the hydraulic
system.
• Take out the key from the tractor’s ignition for the
duration of the servicing or maintenance. Check
that the power is o from the machine you are
working on.
!
DANGER!
CAUTION!
!

FARMI 4571 / FARMI 4581
8
• When servicing the machine, place it on a level
surface and ensure that it cannot be moved.
• Observe the service intervals and annual safety
inspections.
• All spare parts and equipment must fulll the
manufacturer’s requirements. This can be guaran-
teed by using original parts.
• Put all safety devices back into place immediately
once servicing or maintenance is complete.
When lifting the machine, check
that the lifting/hoisting equip-
ment is in perfect working order.
Check the weight of the machine
before lifting it. Choose lifting
trajectories so that they do not
cause any danger.
Many countries have specic legislation on lifting,
hoisting cables and hoists. Always comply with local
safety regulations.
OILS AND LUBRICATION
• Always use the oil types recommended by the
manufacturer. Other types of oil may cause
faults or improper operation of the equipment,
which could lead to serious damage to people or
property.
• Never mix dierent liquids or oils.
• Always follow the manufacturer’s lubrication
instructions.
• Use control equipment carefully until the hydraulic
oil has had time to reach its operating tempera-
ture.
CAUTION!
!

FARMI 4571 / FARMI 4581
9
SAFETY INSTRUCTIONS FOR HYDRAULIC CIRCUITS
1. Work on hydraulic equipment may only be carried
out by professional hydraulic engineers.
2. Be cautious when using the equipment in cold
conditions.
3. Check the machine for leaks. Do not use the
machine if there is a leak from any system. Check
all hydraulic hoses – particularly those which are
bent during use – and replace any that are in poor
condition or have leaks. Ensure that all joins are
tight and that the lines are not damaged. Check
that all protective caps and ller caps are closed
properly. Check the hose sheathing for damage.
4. Check that all hose connectors, lengths and
qualities comply with applicable requirements.
When replacing or repairing hoses, use original
parts or hoses and connectors recommended
by the manufacturer. Check particularly that the
pressure classes of the hoses and connectors are
suitable to the operating pressure levels.
5. Check that all safety devices such as pressure
relief valves, etc., are in place and work properly.
Familiarize yourself with their use. Safety systems
may never be bypassed.
6. Check the main hydraulic parts daily, and always
after a fault. Replace any damaged parts imme-
diately.
7. If a component is damaged, clean it before
repairing it. Do not use solvents when cleaning
parts.
8. Do not attempt to carry out repairs that you are
not fully familiar with.
9. Never carry out repairs of the hydraulic circuit
when the system is pressurized. When pressuri-
zed, the oil spray can penetrate the skin and cause
mortal danger.
10. Never work below a device or component that is
only being held up by hydraulics. Use separate
supports when carrying our maintenance or re-
pairs. Do not disconnect cylinders or their valves
until the machine is well supported.
11. Most hydraulic oils do not evaporate easily. Risk
factors include hot oil, spills and oil mist (pressu-
rized).
12. If oil gets into your eyes, rinse with plenty of water
and contact a doctor.
13. Avoid prolonged or repeated contact with your
skin.
14. If sprays or contact with the skin cannot be
avoided, use protective gloves, goggles and
clothing as necessary. Do not use oily clothing.
15. Avoid discharging hydraulic oil into the
environment, as it can pollute waterways and the
groundwater. If biodegradable oil is to be used,
please contact the manufacturer beforehand and
have the suitability of your equipment for the ope-
ration with biodegradable oil conrmed by him
before such oil is used.
16. Store the oil in sealed containers provided by the
manufacturer. Try to transfer the oil directly from
its container into the tank.
17. If the oil must be passed through other
containers, ensure that they are completely clean.
Caps, funnels, sieves and lling holes must also be
clean.
18. Never store oil outdoors, as water could
condense in it.
19. Always dispose of oil in a suitable container, never
into the environment!

FARMI 4571 / FARMI 4581
10
Voltage rating, kW Minimum distance, m
Overhead line Pendant line
below on side
<1 2 2 0,5
1-45 2 3 1,5
110 3 5 -
220 4 5 -
400 5 5 -
SAFETY INSTRUCTIONS FOR LOADERS
• Ensure the machine is properly supported during
storage.
• Council of State Decision 856/1998 requires that
loading crane operators be at least 18 years of
age and have received sucient instruction in its
operation. This applies in Finland.
• Before starting the machine, ensure that there
are no bystanders within a radius of 20 meters.
• During operation, the vehicle must be positioned
on suciently solid ground, in a properly stab-
le position. The support legs must be used in all
circumstances.
• Always put on the parking brake during loading.
• Do not exceed the given load values.
• Never stand beneath a hanging load.
• Do not leave booms in raised position unattended!
• The loader must not be used for lifting people.
• When lifting, note that the booms sag slowly.
• When working in the proximity of live wires,
always adhere to the given safety distances
(cf. table).
• Take particular care when lifting heavy loads and
turning the loader to the side.
• Never use the loader for towing.
• Do not run the machine’s movements to their
extremes at full speed.
• If the vehicle assembly falls over, do not jump out
of the vehicle.
• If the booms sag down under excess loading, use
the shifting boom to shift the load closer to the
column. Do not open the grapple.
• If the machine comes into contact with a power
line, do the following:
• Call for assistance immediately and ensure that
no one enters the danger zone.
• If you are outside the machine, do not touch any
part of the machine.
• If you are inside the machine, leave it by
JUMPING OUT. When you jump, make sure both
feet touch the ground at the same time. Do not
touch the vehicle or the ground with your hands
after jumping out. Move at least 20 meters away
from the vehicle by hopping on two feet.

FARMI 4571 / FARMI 4581
11
1
2
43
5
6
7
8
910
12
11
15
14
16
13
FARMI
FARMI
MAIN PARTS
1. Slewing device
2. Column
3. Lifting arm
4. Folding arm
5. Extension boom
6. Side bar
7. Draw bar
8. Lifting cylinder
9. Folding cylinder
10. Extension cylinder
11. Rotator
12. Grapple
13. Grapple cylinder
14. Mounting rack + hydraulic support legs
15. Support leg cylinder
16. Control valve
LIFTING CAPACITY
TECHNICAL DATA

FARMI 4571 / FARMI 4581
12
TECHNICAL DATA FARMI 4571 FARMI 4581
Lifting torque, kNm gross 45 45
Max. reachs, m 7,1 8,1
Lifting capacity, kg, 4 m 845 810
Lifting capacity, kg / max. reach 455 365
Slewing angle, o400 400
Slewing torque, kNm 17,4 17,4
Max. working pressure, bar 195 195
Recommended pump capacity, l / min 30-60 30-60
Grapple area, m20,21 0,21
Rotator (rotating angle continious) FR10 FR10
Rotator torque, kNm 0,93 0,93
Grapple + rotator weight, kg 105 105
Total weight with grapple + rotator, kg 1045 1100
Mounting rack + hydraulic support legs weight, kg 267 267
LIFTING REACH

FARMI 4571 / FARMI 4581
13
4014598 0
1/2
3
5
4
67/8
STICKERS AND PLATES
These stickers and plates must be found on the crane. Replace missing stickers or plates immediately.
1. Machine plate HK4571 (41018320)
2. Machine plate HK4581 (4108330)
3. Danger area 20 m (40146720)
4. Lifting capacity HK45 (40145980)
5. Minimum distance (40146730)
6. FARMI Forest (40147100)
7. Sticker 4571 (40147190)
8. Sticker 4581 (40147200)

FARMI 4571 / FARMI 4581
14
ø25
350
175 175
350
175 175
INSTALLATION INSPECTION
Decisions 354/83 and 530/83 made by the Finnish
Council of State stipulate that an installation inspection
must be performed for each crane-vehicle assembly
before use.
An inspection form can be found in this manual.
The person performing the inspection must be familiar
with the crane’s construction and operation.
MOUNTING THE MULTI- AND DOUBLE-ACTING
VALVES
The valve must be positioned or
covered so that the levers cannot
be used inadvertently.
Install the valve using the included bracket at the
desired location, paying attention to the direction of
the hoses and movement during loading and trans-
ferring so that there is no risk of abrasion or clamping.
The label indicating the safe distance from live
conductors must be clearly visible during operation.
Hoses in the operator’s cabin
must be protected so that the
user is not endangered by oil jets
in the event of breakage.
The levers in the multi-lever valve can be moved to
dierent positions if necessary. Detach the levers from
the valve before moving them.
ASSEMBLY AND MOUNTING
Read these instruction before
starting any assembly or moun-
ting work. Improper mounting
work can cause hazards during
use of the crane. Mounting car-
ried out in a manner other than
that specied in this manual can expose the user to
danger and will void the manufacturer’s guarantee.
Check the stability of the crane-vehicle assembly by
performing the necessary calculations. See “Determi-
ning the stability”.
The mounting must be performed by the manufac-
turer or a service center or person authorized by the
manufacturer.
The strength class of the mounting bolts is 10.9. Use
self-locking nuts, e.g., DIN985.
Put all screws into place. First tighten all screws in
threaded holes to torque, and then all screws in
unthreaded holes.
Retighten the bolts after the test
run and the rst day of use.
When mounting the crane on a foundation not deli-
vered by FARMI Forest, use the mounting plate shown
in gure 1.In mounting, allow enough space for servi-
cing and repairs.
Fig. 1. Mounting plate for FARMI 4571/4581
CAUTION!
!
CAUTION!
!
CAUTION!
!
!
DANGER!

FARMI 4571 / FARMI 4581
15
The person testing the crane must be qualied to use
it.
1. Read the installation inspection report. If no instal-
lation inspection has been performed, do not use
the crane.
2. Ensure that the control valve’s pressure line (P) has
been connected properly and that the return (T) is
unobstructed.
3. Check the hydraulic oil level.
4. Familiarize yourself with the control valve’s func-
tions.
5. Ensure that the hoses can move freely. Remove
any transport supports and ties.
6. Ensure that there are no people or obstacles in the
operating area. The danger zone is 20 m.
7. The crane must be tested on a level, rm base.
TESTING
1. Ensure that the control valve’s control levers are in
the middle position.
2. Connect the oil ow to the crane. Let oil ow
through the valve for a while.
3. Lower the support legs.
4. Carefully drive the crane movements one by one
to their extreme positions and repeat this until the
movements are smooth.
5. After testing the crane, inspect the joints and
repair any leaks.
6. Check the mounting bolts of the crane and the
tting stand, and tighten them if necessary.
7. Checkthehydraulicoillevel,andtopuptheoilifne-
cessary.
Be careful when bleeding air
from the system. If you drive a
cylinder to its extreme position
at full force, the air pressure in
the cylinder will damage the
seals.
Be extremely careful when there
is air in the cylinders.
CONNECTION TO THE HYDRAULIC SYSTEM
Before connecting the crane to the tractor’s hydraulic
system, make sure that the oils are compatible. The
crane has been tested using 10W/30 oil that meets the
API SE, CD, and API GL-4 requirements.
We recommend connecting the pressure hose to the
single-acting hydraulic outlet and the return hose to
the tank via the return lter. The lter’s intended ow
rate is 80 l/min and the ltering density 25 µm abs.
The crane can also be connected to the double-acting
hydraulics outlet. If this is done, make sure that the
lever of the double-acting valve controlling the ow is
in the right position so that the pressure is directed to
the pressure connection of the crane’s control valve.
Check the operation of the double-acting outlet in the
vehicle’s operating manual.
COMMISSIONING
Before using the crane, familiari-
ze yourself with the operating
and safety instructions.
INSPECTIONS BEFORE TESTING
Do not pressurize the hydraulic system before
connecting the control valve’s 1/2” quick couplings to
the vehicle’s hydraulic system.
Connect the pressure hose (P) to the valve as indicated
by the arrow and the return hose (T) to the vehicle as
indicated by the arrow.
Do not pressurize the control
valve’s return line (T) – this could
cause the valve to break.
Ensure that the 1/2”quick coup-
ling are locked.
CAUTION!
!
CAUTION!
!
CAUTION!
!
!
DANGER!

FARMI 4571 / FARMI 4581
16
PRACTICE RUNS
• Drive through every movement with an unloaded
crane, paying attention to the positions in which
the crane can hit obstacles.
• Move the control levers smoothly and steadily,
avoiding quick and jerky movements.
• Learn to use several functions simultaneously. This
enables smooth, precise operation.
• Start o at a low engine speed in order to avoid
sudden movements.
• When you have become accustomed to the crane’s
movements, choose the appropriate engine speed
so that operation is ecient but you still have the
movements under control.
The lowest recommended operating temperature for
the crane is -25oC.
Note that the hydraulic seals, hoses, and steel structures
are prone to damage at low temperatures.
When starting work at cold temperatures, rst let the
oil ow freely through the valve for a couple of minutes.
The maximum operating temperature for hydraulic oil
is +75oC.
Use the support legs only to
provide additional support for
the vehicle.
When working on an inclined surface, do not load the
crane with the full lifting torque, and be extremely
careful.
When loading from uphill, note that the slewing
movement may not be able to support the load but
the pressure relief valves can be overloaded and the
load can move down, causing a danger of the crane
falling over.
Never move the boom to its
extreme position at full speed!
Be careful when working near
electric cables.
Observe the safe distances.
When transferring the crane, support it against the
trailer body or load.
DETACHING THE CRANE
Ensure that the ground under the crane is suciently
hard and level.
Ensure that there are no extra people around and that
no danger will be caused to others where the crane is
to be stored. Pay special attention to the storage loca-
tion of the control valve, ensuring that, e.g., it is out of
the reach of children.
Always switch the pump o
before removing the quick coup-
ling between the crane and the
vehicle.
When detaching the crane from
the vehicle, make sure that there
are no people in the immediate
vicinity.
1. Lower the support legs to the desired height.
2. Lower the booms as shown in g. 2.
3. Lower the crane using a hoist.
4. Make sure that the crane cannot lean over. Fig. 2.
5. Detach the crane from the vehicle.
6. Detachandcoverthecontrolvalve’squickcouplings.
Fig. 2. Lowering the booms
CAUTION!
!
CAUTION!
!
CAUTION!
!
WARNING!
!
!
DANGER!

FARMI 4571 / FARMI 4581
17
STORAGE INSTRUCTIONS
1. Clean the crane and, if necessary, touch up any
points where paint has peeled o.
2. Lubricate the crane thoroughly (see Lubricating
Instructions).
3. Release the pressure from the cylinders.
4. Protect the cylinder piston rods and exposed
parts of the control valve with grease.
5. Store the crane in a sheltered area, away from
direct contact with the ground.
6. When you start using the crane again, remove the
protective grease from the cylinder piston rods
and the control valve.
MAINTENANCE
• Maintenance work must be carried out regularly
to ensure safe and trouble-free operation.
• Always use the appropriate tools.
• Determine the location of the defect.
• Keep the disassembled sections, removed parts,
and the repair area protected from dirt.
• Clean the parts using kerosene, never fuel oil.
• Valve adjustments and repairs are to be performed
by dedicated service personnel.
SLEWING DEVICE
• See maintenance table.
BOOMS
• Keep the axial clearance in the joints as small as
possible. Do not over-tighten.
REPLACING BEARINGS
• When installing bearing sleeves, use an
appropriate drift.
• Make sure that the new bearing’s grease hole
meets the nipple.
• If the bearings have grease pockets, ll these with
Vaseline.
REPLACING THE HYDRAULIC CYLINDER SEALS
Replace all hydraulic cylinder seals at the same time.
1. The piston rod guide is attached with a thread.
Unscrew the guide using a large pipe wrench or
create a special tool for the purpose, making use
of the drill holes in the piston rod guide.
2. Pull out the piston rod and its guide.
3. Detach the piston from the rod.
4. Clean the seal grooves and install the new seals.
Be careful not to break the seals when installing
them!
5. Install the piston on the rod and tighten to
240 Nm.
6. Lubricate the new seals with hydraulic oil before
pushing the piston into the cylinder sleeve.
Fig. 3.Detaching the cylinder guide

FARMI 4571 / FARMI 4581
18
PRESSURE MEASUREMENT
Always make the adjustments with the manometer in
place.
• The main pressure is measured from the measu-
ring point in the control valve’s inlet section.
• Adjustments and inspections for each movement:
• Set the main pressure relief valve to 5 bar
above the value set for the protective valve.
• Perform the movement, and check and adjust
the pressure if necessary.
• Finish by adjusting the main pressure to the
set value.
• Pressure measurements are to be performed at
the normal operating temperature and at the
normal ow rate.
• The free ow pressure can be read from the
manometer when the ow of oil is directed
through the valve.
REPAIR WELDING
If welding is required for modifying or repairing the
crane, note the following:
• The welder must be qualied: welding grade 3.
There must be no root defects.
• Remove paint and any oil from the location to be
welded.
• Connect the ground terminal directly to the piece
to be welded – there must be no joints in between.
• Use OK 48.00 or equivalent electrodes. The
electrodes must be dry.
• Improperly welded structures can get fractured.

FARMI 4571 / FARMI 4581
19
MAINTENANCE TABLE
OBJECT
ACTION
Maintenance interval, working hours
10 h,
or after working shift
50 h,
or after working week
250 h
General Check cylinders and leakages
in hoses
Check pins and lockings
Check the screws.
Check the condition of
primary structures
Slewing device Grease slide bearings Check the screws.
Grease racks Adjust rack bearings
Grease rack bearings
Check the oil level in the sight
glas
Change the oil every year.
Booms Grease slide bearings Check slide bearings and
adjust sideways clearance
necessary.
Lubricate extensions upper
and lower surfaces
Cylinders Grease articulation bearings Check hydraulic cylinders
bearings.
Grapple Grease slide bearings Check grapples xing to
rotator
Support legs,
mounting base
Grease slide bearings Check hydraulic cylinders
bearings.
FARMI 4571 / 4581 Tightening torque
Slewing device 1100 Nm hexagonal socket head screw M24x2-90 ZN 10.9
Slide pieces 22 Nm screw M8x16 / M8x12 ZN88

FARMI 4571 / FARMI 4581
20
LUBRICATION
Using the appropriate hydraulic oils and lubricants is
essential for the trouble-free operation of the machine.
CHANGING THE OIL
Change the oil according to the vehicle’s maintenance
recommendations.
The crane has been lled with 10W/30 oil at the factory.
If the oil temperature does not exceed 70oC in the
summer, winter oil can be used all year round.
When changing oil, make sure that the oil grade being
used is compatible with the system and any oil remai-
ning in it.
HYDRAULIC OIL REQUIREMENTS
The freezing point must be below -50oC.
The viscosity must not be lower than 1.5 Eo, +50oC for
piston pumps and 2.5 Eo, + 50oC for gear pumps.
The hydraulic oil must contain the necessary additives
for lubrication, rust protection, and defoaming.
Hydraulic oils intended for use in tractors are usually
also suitable for use in hydraulic cranes.
OIL MAKE HYDRAULIC SYSTEM GREASE NIPPLES
-10oC ...+30oC -25oC...-10oC
BP ENERGOL SHF 46 ENERGOL SHF 32,22 ENERGREASE LS-EP2, L21M
ESSO UNIVIS N46 UNIVIS N 32,22 BEACON EP2,
MULTIPURPOSE GR MOLY
MOBIL DTE 16 DTE 15,13 MOBILUX EP 2
MOBIL GREASE MP, SPECIAL
SHELL TELLUS OIL T46 TELLUS OIL T32,22 ALVANIA EP GREASE 2
TEBOIL HYDRAULIC OIL 46 HYDRAULIC OIL 32, 33 SOLID 2/ summer, SOLID 0/ winter
UNION / TEXACO RANDO OIL HDZ 46 RANDO OIL HDZ 32,
HYDRAULIC OIL HD 5W
MARFAK MULTI PURPOSE 2,
MOLYTEX GREASE 2
Lubricating point Qty Action Interval Notes
Slewing device
Bearings 3 Greasing 50 h
Racks 1 Greasing 50 h
Oil 5,5 l Checking 50 h
Changing 1000 h or once a year
Booms
Articulation 5 Greasing 10 h
Cylinder ends 4 Greasing 10 h
Extensions surfaces 2 Lubrication 10 h Apply grease to surfaces.
Grapple
Articulation 6 Greasing 10 h
Cylinder ends 2 Greasing 10 h
Support legs
Articulation 2 Greasing 10 h
Cylinder ends 4 Greasing 10 h
OIL AND LUBRICANT GRADE TABLE
LUBRICANTING POINTS TABLE