serial number: .....................................................
year of manufactu re:..........................................
We declar e that the mach ine which th is declarat ion concerns m eets the follow ing requi rements:
- Direc tive 200 6/42/ EC OF THE EU ROPEAN PARLI AMENT A ND OF THE COU NCIL dated
May 17th 2006 on mac hines a nd the Resol ution of the M inist er of Econom y of October 21st
2008 conce rning genera l requirement s for machinery ( Journal of Laws, is sue 199 item 1228);
The follo wing harmo nised stand ards were use d for compliance e valuation:
PN-EN 1853+A1:2009
PN-EN ISO 13857:2010
PN-EN ISO 4254 -1: 2013
PN-EN ISO 12100:2012
- and the fol lowing sta ndards: PN-IS O 3600:1998, PN-ISO 11684:1998; and the De claration o f
the Min istry o f Transportat ion, Const ructio n and Mari ne Economy dated 0 6/06/2013 on the
publicat ion of the con solidated te xt of the Resolut ion of the Minist ry of Inf rastruc ture on the
techn ical req uirement s for vehicle s and the scop e of their ne cessar y equipment ( Journal o f
Laws of 22/08/2013, item 951), as amende d
Unit respo nsible for engine ering docume ntation: Metal-Fach E ngineerin g Department
This D eclaration o f Conformit y becomes null a nd void if the mach ine design is ch anged
or modi ed in any manne r without prior c onsent from t he manufact urer.
Thank you for choosing our farming truck trailer, a machine designed for efficient and reliable operation. This Manual will let you fully use the
advantages of our trailer. The Manual contains a detailed table of contents followed by descriptions which will allow to easily identify the trailer
and to make the best use of it. The information regarding safety of operation, description of coupling with a tractor, technical service activities
and storage conditions are listed on the following pages of the Manual.
A spare parts catalogue containing the list of the trailer major components allowing for easy ordering is attached to the Manual in a digital
form on a CD. A printed version of the catalogue can be purchased at authorised service outlets or directly from the manufacturer.
Both the Manual and the Spare Parts Catalogue contain basic information on the product. The elements fitted to the equipment may be slightly
different from those presented in the Manual.
The manufacturer reserves the right to introduce changes without notice.
ALL OPERATORS OF THIS TRAILER MUST UNDERSTAND THE CONTENTS OF THE OPERATING
INSTRUCTIONS BEFORE COMMENCING WORK. THE MANUAL IS A PART OF THE T739 TRAILER
ESSENTIAL EQUIPMENT.
IMPORTANT
The latest Operating Manuals and Parts Catalogues are available on our website:
http://www.metalfach.com.pl/en/materialy-do-pobrania
The identification data is found on the trailer nameplate located on
the left-hand side of the trailer chassis front crosspiece. The trailer
serial number is stamped on the nameplate and under the plate,
directly on the machine frame.
Fig. 1. Nameplate location on the machine
If the machine is sold to another user, it must be supplied with the
Operating Manual. It is advised that the supplier has a confirmation
stating that the Manual was transferred together with the machine,
signed by the buyer and filed.
Carefully read the operating manual.
WARNING!
It is forbidden to drive the trailer on public roads or
operate the trailer without its nameplate or with an
illegible nameplate.
Data plate
Trailer consecutive number
DETAIL F
SCALE 1:25
THE MANUAL IS A PART OF THE TRAILER ESSENTIAL
EQUIPMENT.
When purchasing the machine, check the serial
number indicated in the Manual and the warranty
sheet against the serial number stamped on the
The trailer is intended for transport of crops and other bulk or
loose materials within a farm and on public roads.
The trailer is unloaded manually or by tipping the load body to the
rear or to the sides. The trailer is designed for coupling with farming
tractors of varying power ratings, equipped with an external power
hydraulic system, a power outlet for the electrical lighting and warning
systems and the braking system of hitched machines, and a transport
hitch.
Do not use this trailer to carry fuel, gas cylinders and similar
loads due to the compliance requirements for transport of hazardous
materials.
• Do not use the trailer to transport: fuel, gas cylinders, or toxic
materials that may cause environmental pollution or any other
hazardous materials. The manufacturer shall not be liable for any
resulting damage as it is solely incurred by the owner.
• The trailer shall only be used by persons who have understood the
operating manual and who have been trained in hazards and first aid
for accident victims.
• Follow all applicable laws for accident prevention and any other
recognised rules of engineering safety, occupational medicine and
road traffic safety.
1.3. TRAILER DESIGN
The T739 is a metal structure with open load surface. The trailer
features a pneumatic or hydraulic service brake and a parking brake
that is manually operated via a screw gear, actuating the friction
components of the rear axle service brake.
The trailer features a complete signalling and warning system (an
electrical system and reflective lights).
The trailer is also suitable for transport on public roads.
The trailer is manufactured in accordance with:
• Directive 2006/42/EC
and the following standards:
• PN-EN ISO 4254-1: 2013
• PN-EN 1853+A1:2009
• PN-EN ISO 13857:2010
• PN-EN ISO 12100:2012
1.3.1. TRAILER EQUIPMENT
The essential equipment of each trailer includes:
• Operating Instructions Manual;
• Warranty card with warranty conditions;
• Bracket for the sign "Slow-moving vehicle";
• Two-line pneumatic brakes with adjustable braking force;
• Parking brake;
• Lighting installation;
• Semi-elliptic spring suspension;
• Tarpaulin cover with supports;
• safety stairs.
On customer's request (additional costs incurred), the
manufacturer may equip the trailer with the Slow-Moving Vehicle sign
and a reflective warning triangle.
1.3.2. CHASSIS
The trailer chassis is composed of the following subassemblies:
• chassis frame
• tow bar
• wheel sets
• suspension assemblies
The chassis frame and the tow bar are welded structures made of
steel sheet and profiles.
The axles are made of thick-wall pipes terminated with plugs on
which l and wheel hubs are set by cone bear ings. They are single wheels
equipped with drum brakes with the shoes actuated by mechanical
expander cams.
The trailer axle suspension consists of steel semi-elliptic leaf
springs attached to the turntable frame and the bottom frame by pins
and sliders. The wheel sets are attached to the springs by bolts.
1.3.3. LOADING SPACE
The trailer loading space comprises the following:
• The top frame (box frame) that is set on the bottom frame (chassis
frame) in articulated seats secured by pins which serve as pivots
during tilting (tipping) of the top frame (load body/box).
• The side walls/boards and their top sections are singular
components. Each component features a separate set of locks for
closing and opening of individual wall and top sections independently
of each other and in any order. These design solutions increase
functionality and facilitate operation of the trailer.
• The wall and top section locks are secured against accidental
release.
1.3.4. LOAD BODY HYDRAULIC TIPPING MECHANISM
The hydraulic mechanism is designed for automatic unloading
of the trailer by tipping the load body backwards or sideways. The
hydraulic tipping system is fed with oil from the tractor hydraulic
system.
The hydraulic system comprises:
• coupling valve plug;
• hydraulic lines;
• single action hydraulic actuator;
• cut-off valve;
• fitting and joining hardware.
Fig. 1 shows the diagram of the load body hydraulic tipping system.
The lifting and lowering of the load body is controlled by the DCV in the
tractor hydraulic system.
Fig. 1. Diagram of the load body hydraulic tipping system
1–hydraulic actuator; 2–hydraulic lines; 3 – cut-off valve; 4 – cutoff valve control cable; 5 – coupling valve plug, 6 – control valve;
7–coupling valve socket.
The cut-off valve limits the load body tilt angle during
tipping to the sides. The valve is pre-adjusted by the
trailer manufacturer. Do not adjust it on your own.
The trailer electrical system is designed for 12 V DC supply from
the driving tractor system.
The diagram of the electrical system and the trailer lights layout are
shown in Fig. 2.
The T739 trailer is equipped with the following braking systems:
• service brake: pneumatically actuated two-line system controlled
from the driver's seat by pressing the tractor's brake pedal;
• parking brake: mechanically controlled by hand via a crank lever
mechanism and a screw gear, located on the left side of the trailer
and operating the rear tandem axle wheels.
The service brake design ensures automatic braking of trailer land
wheels if the pneumatic system is accidentally decoupled between the
trailer and the tractor.
The two-line pneumatic system diagram is shown in the figure
below.
Fig. 3. Two-line pneumatic system diagram
1 – 1st trailer pneumatic connector; 2 – air filter; 3 – control valve;
4–air tank; 5 – water drain valve; 6 – manual braking force control;
7–check connector; 8–pneumatic diaphragm cylinder, 9–2nd trailer
pneumatic connector.
The trailer user is required to keep the warning
symbols and text on the trailer legible during its
entire operating life. If damaged or destroyed, replace
ATTENTION!
with new ones.
1.6. GENERAL SAFETY RULES
Before each start of work, inspect the trailer for work safety.
1. Aside from the guidelines in these Operating Instructions, follow
the general regulations for safety and accident prevention.
2. The affixed information and warning signs and text indicate
important guidance for safe operation. Follow it for your safety.
3. Start the trailer only when all required equipment is connected and
secured from unintended release or opening (e.g. the hitch and tow
bar system, couplings, etc.).
4. Understand all equipment and controls, as well as their functions,
before work. It is too late to learn that during work.
5. The tr ailer must no t be used by per sons who are under the inf luence
of alcohol and/or other substances, and/or not trained or suitably
licensed to operate motor vehicles.
1.6.1. SAFETY OF OPERATION
1. All work safety information shall be given to all other users of the
tr ail er.
2. Check the direct environment (for children and bystanders) before
start. Pay particular attention when visibility is poor.
3. Do not remain on the trailer in motion, when coupling the trailer
with a tractor and when loading or unloading the trailer.
4. After unloading the trailer, lower the load body completely. Never
leave the trailer unattended with its load body raised.
5. Enter the trailer only when it has completely stopped and with the
tractor engine stopped.
6. Lift and lower the load body only from the driver's seat.
7. Hitch the trailer according to regulations, couple only with
recommended equipment and secure the tow bar hitch-ring to the
tractor transport hitch.
8. Exercise extreme caution when coupling/decoupling the trailer
with/from the tractor.
9. When installing and removing supports, security/safety equipment
and ladders, these types of equipment must always be positioned
to ensure safety to operators.
10. Follow the maximum permissible axle loads, total weight and
transport dimensions.
11. Do the following checks: coupling and functional test of brakes
and lights, inspect the slow-moving vehicle sign, and check other
protective devices.
12. Do a functional test of lights and brakes before driving. Also
prepare the trailer as recommended in Section "Travelling on
public roads".
13. Mind the changes in vehicle behaviour, steerability and braking
efficiency due to the hitched trailer and its load.
14. When towing the trailer, mind the layout of loads and/or inertia,
especially when the load is unevenly distributed.
15. Do not remain within the range of discharged load.
16. Start the hydraulic lift (tipping) of the load body only when:
- the trailer is coupled with the tractor, AND
- the trailer is parked on a hard and level ground, AND
- no persons remain in the unloading area, AND
- the tractor's axis is aligned with the trailer, AND
- the machines are at a safe distance from all power lines,
AND
17. If it is necessary to unload to the rear while parking on a slope,
the trailer with the tractor must be parked in the uphill direction.
If unloading to the side on a slope, tilt the load body to the side
opposite to the trailer's direction of gradient.
18. During all work with the raised load body, secure it against falling
with the support that has been delivered with the trailer. Turn off
the tractor engine and remove the ignition key.
19. Be careful to avoid crushing of fingers and hands during opening
and closing of the load body walls.
20. Mind the warnings of crush and cut hazard areas when starting the
work w ith trailer. There is a risk of injury when coupling/decoupling
the trailer with/from the tractor. When coupling/decoupling, do not
enter between the trailer and the tractor or stand behind the trailer
if the trailer is not secured with wheel chocks or the parking brake.
21. No person is allowed to remain between the trailer and the tractor
if the vehicle is not secured against rolling with parking brake and/
or wheel chocks.
22. When parked, secure the tractor and the trailer against rolling.
23. Do not drive with the lifted load body.
24. When raising the load body, maintain a safe distance from power
lines. The C.2.30. sign acc. to PN-ISO 11684:1998 on the front wall
of the trailer warns of power lines.
25. During all servicing or repair works which require lifting the load
body, the body must be empty and secured with the mechanical
support against accidental falling.
26. Always adapt your driving speed to the conditions. Avoid rapid
turns when driving uphill or downhill.
27. Maintain a safe distance from the U-turn range of the tractor and
trailer train.
28. Ensure adequate visibility (with the help of a signalling person, if
necessary) when driving in reverse.
29. Mind the inertia of the trailer when cornering.
30. Additional protection for the load transported on the tr ailer (chains,
tarpaulin, plastic sheet, nets, tr ansport straps, etc.) may be applied
only with tractor engine off and the ignition key removed.
31. Remove functional disturbances of attachments only with the
engine turned off and the ignition key removed.Remove functional
disturbances of attachments only with the engine turned off and
the ignition key removed.
32. Enter the load body surface only after turning off the drive and
stopping the tractor engine. Remove the ignition key.
33. Always turn off the engine and remove the ignition key before
exiting the tractor. Engage the parking brake and secure the trailer
with the wheel chock.
34. When travelling on public roads, the permissible axle load of the
trailer must not exceed 88.29 kN (front) and 88.29 kN (rear).
35. The maximum permissible pressure of the hydraulic system is 16
MPa.
36. The maximum permissible pneumatic pressure of the two-line
system is 0.8 MPa.
37. Prepare the trailer for work (connect the pneumatic and hydraulic
hoses, etc.) with the tractor engine off and the ignition key removed.
38. The manufacturer delivers the trailer completely assembled.
39. All hydraulic lines must be replaced every 6 years.
40. Noise – the equivalent sound pressure emission corrected by A
characteristics (LpA) does not exceed 70 dB.
1.6.2. TYRES
1. Make sure to secure the trailer against accidental movement when
servicing the tyres.
2. The wheels and tyres shall be repaired by trained personnel with
adequate tools.
3. Regularly check the tyre pressure. Maintain the recommended
pressure values.
4. Protect the tyres from sunlight during prolonged parking of the
tr ail er.
5. Replace the wheels with the trailer empty, if possible.
1.6.3. PNEUMATIC SYSTEM
1. The pneumatic system is under high pressure.
2. When connecting the pneumatic lines with the pneumatic system of
the tractor, ensure that the valves on the tractor and the trailer are
depressurised.
3. Periodically inspect the pneumatic connections. Replace all
damaged and aged parts immediately. Replace the lines as
recommended in the manufacturer's technical requirements.
Replace hoses every five years unless damage is found earlier.
4. Befo re attemptin g any work on the p neumatic sy stem, depre ssurise
it and turn off the tractor engine.
5. All repair work on the pneumatic system may only be performed by
specialist services of the trailer's manufacturer.
1.6.4. PERIODIC MAINTENANCE
1. All maintenance, repair and cleaning operations, as well as
troubleshooting must be performed after turning the drive and the
tractor engine off. Remove the ignition key.
2. Inspect all bolts and nuts periodically and retighten if necessary.
Replace regular bolts only with the bolts of the same quality and
strength ratings.
3. When servicing under the lifted and tipped AND unloaded load
body, always secure the body with the support supplied with the
tr ail er.
4. Use correct tools and safety gloves when replacing any parts.
5. After completing your work, thoroughly clean the trailer to leave no
remains of the load on the body.
6. Before arc welding and/or working on the electrical system, isolate
the continuous electrical power supply.
7. Th e safety/pr otection e quipment wea rs out, whi ch require s periodic
adjustments, inspection and replacement when necessar y.
8. Use only the original spare parts recommended by METAL-FACH
Sp. z o.o. Sokółka.
9. Store the trailer in sheltered areas (preferably on level and
hardened ground) and in a manner which prevents injuries of
people and animals.
10. Release all worn out parts to authorised recycling points while
following all applicable environmental protection requirements.
TRAILER IDENTIFICATION, GENERAL SAFETY RULES / OPERATION WITH TRACTORS
2. OPERATION WITH TRACTORS
2.1. COUPLING THE TRAILER WITH THE TRACTOR
The T739 trailer can only be operated with tractors in a good
working order and the minimum pow er output of 100 kW w hich have two
sockets for the external hydraulic system and a hitch (top transport).
Do the following to couple the T739 trailer with the tractor:
• approach the trailer with the tractor so that the tow bar hitch-ring is
placed between the tractor hitch;
• turn off the tractor's engine, remove the ignition key and engage the
parking brake;
• couple the tow bar hitch-ring with the hitch by inserting the bolt and
secure the joint with the safety pin;
• connect the electrical, hydraulic and pneumatic lines with the tractor
external sockets;
• connect the brake line of the trailer to the brake system socket on the
tr acto r.
2.2. DECOUPLING FROM THE TRACTOR
Do the following actions to decouple the trailer from the tractor:
• stop the tractor with the trailer at the location where the latter will be
left, and engage the tractor's parking brake;
• engage the trailer's parking brake;
• if the trailer stands on an uneven or sloping ground, secure it against
rolling down by chocking the wheels;
• disconnect the electrical, hydraulic and pneumatic lines from the
tractor;
• remove the safety from the hitch pin and then remove the pin – this
will decouple the tow bar from the hitch. Drive away with the tractor
and reinstall the pin in the hitch.
Do not decouple the trailer from the tractor when:
• The load body is lifted;
• The trailer is not secured against rolling away.
Do the following before commissioning the trailer:
• understand the names and locations of individual assemblies/
components of the trailer;
• check the tyre pressure;
• couple the trailer with the tractor;
• set the tow bar hitch-ring of the trailer at the trailer transport hitch
height;
• couple the hitch-ring with the trailer hitch;
• secure the hitch pin against falling out;
• turn off the tractor's engine;
• engage the tractor's parking brake;
• connect the appropriate sockets and plugs of the pneumatic and
electrical systems;
• perform functional checks of the electrical, pneumatic and hydraulic
systems of the tractor and of the trailer, and check leak tightness of
the hydraulic and pneumatic systems on both vehicles;
• check all equipment, the connections and safety from accidental
release or misalignment;
• release the trailer parking brake;
• perform all these actions each time before working with the trailer.
Use only tractors that are fit for service (with
the transport hitch, the hydraulic and pneumatic
systems, and the signalling/warning system
ATTENTION!
working).
4. ONGOING ADJUSTMENTS
In order to maintain proper performance, the T739 trailer requires
the following adjustments:
• Adjustment of the wheel bearing clearance;
• Tyre servicing;
• Hydraulic system servicing;
• Adjustment of the braking system components.
4.1. WHEELS – BEARING CLEARANCE ADJUSTMENT
During the first operating hours of a newly purchased trailer (i.e.
after approximately 100 km of mileage) and further operation (i.e. after
the next 1500 or 2000 km), check the wheel bearing clearance and
adjust, if necessary.
To do so:
1. Couple the trailer with the tractor and engage the tractor parking
brake.
2. Jack up one side of the trailer to lift the wheel from the ground on
this side and secure the trailer against falling.
3. If the wheel has excessive clearance, remove the hub cap and
remove the crown nut clevis pin.
4. Rotate the wheel and tighten the crown nut at the same time until
the wheel stops turning.
5. Loosen the crown nut by 1/6 to 1/3 of the full turn, i.e. until the
nearest clevis pin groove is aligned with the hub pivot hole.
6. Secure the nut with a new clevis pin, and reinstall and retighten the
hub cap.
4.2. WHEELS – TYRES
Servicing of the tyres involves checking their condition visually and
checking the tyre pressure. It is also essential to check that the tyres
have no cracks that expose or damage the carcass, and that the hubs,
wheel disks and their fastening are in good condition.
Periodically inspect the wheel nuts (i.e. the condition
and tightness before each use of the trailer);
retighten if necessary.
ATTENTION!
Periodically inspect the wheel nuts (i.e. the condition
and tightness before each use of the trailer);
retighten if necessary.
ATTENTION!
IMPORTANT
Nut tightening torques for different thread sizes:
M18x1.5 = 270 Nm.
M20x1.5 = 350 Nm.
M22x1.5 = 475 Nm.
After the first travels with loads and after each 100
km, inspect the tightness of wheel nuts and retighten
if necessary.
Check the tyre pressure. The tyre pressure rating on
the symbol at the trailer wheels applies to transport
at the maximum permissible speed (at the maximum
payload).
4.3. BRAKES
4.3.1. BRAKES – SERVICING THE BRAKE PNEUMATIC
SYSTEM
When servicing the trailer, check the tightness and the condition of
parts and connections of the braking system, and periodically drain the
water condensate from the air tank.
Check the leak tightness of the system at the rated pressure of
approx. 800 kPa for the two-line system.
Leaks are detected by a distinct hiss or air bubbles (after coating
with soapy water) at the points of air escape from the system. If the
leaks are caused by damaged seals, lines or other parts (valves,
actuators, etc.), replace them.
Drain the water from the air tank by tilting the drain valve stem
to the side when the tank is pressurised; the drain valve must also be
unscrewed from the tank and cleaned of accumulated dirt once a year,
before the winter season.
4.3.2. BRAKES – ADJUSTMENT OF THE BRAKING
SYSTEM COMPONENTS
When servicing the trailer, check the condition of parts and
connections of the braking system, and periodically inspect the
lubrication of control elements.
Adjust the brakes when the following occurs:
• there is a n excessive c learance be tween the sh oes and the dru m from
the brake shoe wear, resulting in decreased braking performance;
• the wheel brakes work unevenly and out of sync.
With the properly adjusted brakes, the braking force (i.e. the total
of braking forces at the circumference of the wheels) shall be at least
27% of the permissible total weight of the trailer when decelerating
with the service brake; the braking force (i.e. the total of braking forces
at the circumference of the wheels) when actuating the parking brake
shall be at least 16% of the permissible total weight of the trailer. Both
wheels on the same axle should be stopped evenly; the brake force
differential between the left and right trailer side shall not exceed 30%,
with 100% being the higher force.
Park the trailer so that the rear wheels rotate freely. Loosen the
nut (4) so that the arm (2) is able to move against the shaft (1). Retighten
the nut (4) when the position of the shaft (1) against the arm (2) results
in a slight rubbing of the brake shoes against the drum while turning
the wheel. Repeat for the other wheel.
After the correct adjustment of friction components, the wheel
should rotate smoothly, without cogging or evident resistance (other
than caused by rubbing of the brake shoes against the drum). Slight
rub of the shoes against the drum, especially on a brand new trailer or
following replacement of the shoes is normal.
After completing the adjustment, check and adjust the parking
brake. The parking brake is adjusted by setting the cable length that
couples the expander shaft lever with the engaging mechanism. The
required sum of braking forces should be produced at the maximum
force applied to the hand crank of 40 daN (at the right angle between
the cable and the expander shaft lever).
Before driving, periodically inspect all braking
components for proper operation, tightness and
clearance. Adjust or repair as necessary.
ATTENTION!
Inspect the brake shoes at least each year. Replace
worn shoes. In order to achieve the required
braking performance after replacement of friction
components, remember to run them in (by driving
with frequent braking), which should be followed by
readjustment.
Fig. 5. Braking system components
1 – brake shoe expander shaft; 2 – expander shaft lever (arm);
3– arm adjusting comb on the expander shaft; 4–the link (follower)
that couples the pneumatic actuator rod with the expander shaft lever.
Page 19
TRAILER OPERATION
5. TRAILER OPERATION
5.1. LOADING THE BODY
Load the body only when the trailer is coupled with the tractor,
parked on level ground and with the tow bar in the forward driving
direction.
Use mechanical loading equipment (cranes, loaders, conveyors,
etc.) to load the trailer.
Make sure that all wall and top section locks are engaged before
loading the trailer.
Spread the load evenly across the entire load body surface. When
transporting materials that exert focused (topical) pressure on the
load body (e.g. large rocks), line the floor with thick planks first. This
will reduce the surface load on the floor and protect it against damage.
When transporting large volume materials, install the top sections
of the load body walls. If the transported materials protrude from
the trailer, follow the applicable traffic code regulations for proper
marking of protruding loads.
Do not exceed the permissible payload and
permissible axle loads, otherwise the trailer can be
damaged and the traffic safety compromised. The
transported load must be secured against shifting,
ATTENTION!
generating excessive noise and falling down on the
road.
Appr oximate weight values of certai n goods , 1 m3 = kg
• If it is necessary to unload the trailer on a slope,
it is allowed to tip the trailer body upwards (with
the tractor and the trailer parked in the uphill
direction).
• No person is allowed to remain near the tipped
trailer body and within the range of discharged
load.
• Do not decouple the trailer from the tractor when
ATTENTION!
Open the top lock of the load body by moving the handle up and
depressing the button under the handle at the same time. Open the
bottom locks of wall segments by operating the central lock handle:
Fig. 6. Load body wall locks
1–lever safety s top pin; 2–central bottom lock handle; 3–lock adjustment mechanism;
4–central lock shaft.
the load body is lifted.
• Before unloading by tipping the trailer load body,
you must always verify that the pins have been
removed on the correct side of the trailer. Failure
to remove the pins may destroy the trailer!
5.3.1. HYDRAULIC SYSTEM – SERVICING OF THE LOAD
BODY HYDRAULIC TIPPING SYSTEM
The hydraulic oil of the trailer and the external hydraulic system
oil (tractor) must always be of the same grade and type. DO NOT use
different oil grades.
The trailer's hydraulic system must be absolutely leak tight. Check
the leak tightness of the hydraulic system by tipping the load body
backwards and overloading the hydraulic system for a few seconds. If
there are oil leaks at the hydraulic connections, retighten them. If the
problem persists, replace the hose or the connection fittings. If the
hydraulic leak does not occur on any connector, replace the leaking
hydraulic system component. Any and all mechanical damage to a
component requires its replacement with the new one.
The condition of the hydraulic system must be monitored
continuously throughout the operating life of the trailer. When coupling
the hydraulic systems of the tractor and of the trailer together, keep
the couplings as clean as required.
5.3.2. HYDRAULIC SYSTEM – ADJUSTMENT OF THE
LOAD BODY HYDRAULIC TIPPING MECHANISM
The hydraulic system features a safety cable (which acts as a
tipping angle limiter of the load body) and the cut-off valve that isolates
the oil flow to the hydraulic actuator when the body is tipped. No
unauthorised persons are allowed to make adjustments or remove the
limiters due to safety concerns. The cut-off valve is intended to isolate
the oil feed from the actuator before the maximum (permissible)
tipping angle of the body is reached. Changing the length or breaking
the cable between the load body frame and the cut-off valve may result
in damage of the trailer or a risk of turning over the trailer.
Do not remove or disconnect the safety cable / load
body tipping limiter. Unauthorised persons must not
adjust the cut-off valve.
Proper lubrication is one of the most critical factors that condition
good performance of individual assemblies and mechanisms of the
tr ail er.
Compliance to the manufacturer's guidelines for lubrication
significantly reduces the risk of damage or premature wearing of
individual parts.
Follow these rules when lubricating:
• Clean the grease nipple before feeding the grease;
• Feed the lubricant until fresh lubricant comes out of the gaps
(through which the used lubricant is pushed out first);
• When finishing the lubrication, leave some lubricant on the nipple
head;
• Use oil to lubricate threaded joints, lever joints and similar parts of
the trailer;
• Inspect the lubrication of wheel hub bearings each year; add or
replace the bearing lubricant;
• when replacing the lubricant, remove the hub, remove the used
lubricant, inspect the bearings' condition (replace with new ones
if necessary); after applying the fresh lubricant, adjust the bearing
play.
Use only quality bearing lubricants. Never drive
without the hub cap; other wise penetration by dirt
IMPORTANT
(sand) will damage the wheel bearings.
Lubrication pointLubricant gradeLubrication frequency
Whee l hub bearingsŁT 43Ever y 6 months
Hydraulic actuator head socketsGraphite grease Once a year
Load b ody tipping system par tsŁT 43Every 6 months
Eye cat chŁT 43Ever y 6 months
Other lubrication points:
• Periodically lubricate movable parts of locks, hinges and articulated
joints;
• Pres sure-feed th e lubricant w ith a grease gun through clean nipples;
• Regularly lubricate movable parts of brakes (levers and pins);
• Lubricate the brake shoe axes only when necessary and only with a
small amount of lubricant.
6.2. MAINTENANCE AND SERVICING
The transport capacity and long operating life of the farming
trailer can only be achieved if the machine is properly and reasonably
operated within its design and functional capacities.
Even a slight negligence in operation may result in severe
consequences. A timely discovered fault is easy to remove at a
minimum cost and effort, while producing the maximum effect.
Faults of the trailer can only be discovered soon if regular, periodic
cleaning and thorough inspection is carried out.
Hence clean the trailer frequently to obser ve any damage and
faults.
Also carry out periodic technical inspection of the trailer.
Lubricate the trailer according the guidelines for lubrication.
Store the trailer in a sheltered area to protect it from weather
conditions and deterioration.
In order to preserve its proper performance, the trailer must be
maintained, readily repaired and thoroughly supervised during its
operating life.
Daily servicing (before work) of the trailer includes a certain
minimum of actions, i.e.:
• check th e screwed component s and their safeguards from accidental
release;
• check the play of mechanisms and articulated joints;
• check the tightness of the hydraulic system and remove all leaks;
• check the tightness of the pneumatic system;
• functional checks of mechanisms;
• check and perform lubrication according to the instructions;
• check the tyre pressure;
• check the wall locks for proper engagement and security;
• wall top sections in use: do functional tests and check that the parts
do not pose risk to traffic safety and operator's safety;
• functional check of the brake system and the warning and signalling
system.
6.3. REPAIR INSTRUCTIONS
Small repairs required by accidental faults must be carried out
with care for cleanliness, installation of all parts at their locations and
adjustments essential to proper
performance of the trailer.
Small repairs during operation (in the field) shall be done on site by
service personnel.
All parts removed during repairs shall be stored in conditions that
protect from dust and other contaminants. Pay particular attention to
protection and cleanliness of bearings.
During field repairs, keep the area clean when reassembling the
parts (the parts which fell to the ground shall be washed or at least
cleaned of dirt to an extent that permits proper functioning).
During running and general repairs, follow the engineering rules
for disassembly and (re)assembly of parts and subassemblies to
ensure proper quality and performance of work.
Do functional tests of trailer mechanisms after each repair.
1.Excessive heating of brake drumsBrake shoes are out of adjustmentAdjust per Section 4.3.2.
2.Excessive heating of wheel hubsInsufficient clearing of bearings.
3.The grease flows out on the brake
shoes
4.Uneven braking of wheelsContamination or excessive wear of
5.Insufficient wheel braking
performance.
6.Oil leak at the hydraulic connectionsThe connectors are made too loose or
7.Oil leak from the cut-off valve or the
actuator.
8.The load body locking pin does not
engage the seat.
9.The load body support seat is
misaligned with the chassis frame
plug.
Contamination in bearing grease
Damaged, worn out or improperly
installed hub seal
shoe pads, or the brake shoes are out of
adjustment.
Incorrect adjustment of the shoes and
brake controls.
damage of connector seals.
Worn out or damaged seals, or
mechanical damage of devices.
The pin is bent or there is dirt between
the pin and the casing.
The chassis frame or the load body
frame is bent, or there is mechanical
damage of the mating components.
Adjust per Section 4.1. Remove the hub, replace the
grease and adjust the bearings as indicated above.
Remove the hub, replace the worn/damaged seal and
reinstall properly.
Remove the grease from shoes and brakes, clean the
friction components with extraction naphtha, reinstall
the hub and adjust the bearings as indicated above.
Check the brake shoe pads, remove contaminants,
replace worn out pads and readjust as in Section
4.3.2.
Adjust the brake shoes and control components per
Section 4.3.2.
Retighten and/or replace the line parts as necessary.
Replace the seals or the entire devices (units).
Replace the pin or clean the pin and casing, apply a
thin coat of grease on the pin, install it in the seat and
secure the pin.
Notify the manufacturer to replace the damaged
components
Protect the trailer against direct exposure to sunlight and rain.
Park it with its land wheels chocked on a hard-paved ground (reduce
tyre pressure and cover the tyres if there is a risk of exposure to
sunlight).
If the trailer is exposed to weather, periodically check for rainwater
accumulation in the trailer. Note all damage to the paint coat. Clean
and degrease spots of damaged paint. Next, repaint with the same
colour and coat thickness.
Long-term storage is allowed in sheltered rooms only.
8.2. SALES
The buyer picks the trailer from the manufacturer or the sales
representative on their own, or arranges the delivery with the
manufacturer.
The trailer is sold as fully assembled and ready for operation,
complete with the basic equipment listed in Section 1.2 of this manual.
Optional equipment is available for extra charge.
The sales representative personnel is required to introduce the
buyer to the design and operation of the trailer, along with safety
requirements and warranty conditions.
The buyer shall verify the following:
• The tr ailer is complete, undamaged and with all es sential equipment;
• The nameplate located on the chassis front crosspiece has the serial
number stamped that matches the data in the warranty card;
• The warranty card has been properly filled out with the identification
data on the nameplate.
8.3. SHIPPING TO USER
The trailer shall be transported from the sales representative on
wheels as coupled with a tractor or on a low-bed trailer. Before loading
on a low-bed trailer, connect the farming trailer with the transport
hitch and the braking lines of the tractor. Place the farming trailer on
the low-bed trailer using the extended ramps. Next, secure the farm
trailer with wheel chocks. After wards, disconnect the braking system
and decouple from the tractor. Secure the farming trailer with special
transport straps. Before unloading the transported trailer, extend the
low-bed trailer ramps and release the transport straps used to secure
the farming trailer from falling down in transit. Approach with a tr actor
and connect the trailer braking system's cables. Next, remove the
chocks from underneath the trailer's wheels. When all of the above
has been completed, move the trailer off the low-bed.
AUTHORISED SERVICE / DISMANTLING, DISPOSAL AND ENVIRONMENTAL PROTECTION
9. AUTHORISED SERVICE
9.1. WARRANTY SERVICE
The manufacturer issues a warranty on conditions described in
the warranty card. During the period covered by the warranty, repairs
shall be made at authorised service stations or at the manufacturer's
service point.
9.2. ONGOING MAINTENANCE
After the warranty period, authorised service stations perform
periodical inspections, adjustments and repairs.
9.3. ORDERING SPARE PARTS
Spare parts should be ordered from authorised resellers or directly
from the manufacturer stating the name and surname of the user or
company name and address. Send your order with the name, symbol,
serial number and year of manufac ture of the machine, catalogue name
of the part, catalogue number of drawing or standard, and number of
ordered items. Then arrange the terms of payment.
10. DISMANTLING, DISPOSAL AND
ENVIRONMENTAL PROTECTION
If the product is repaired, dispose of all worn-out parts at a scrap
collection point. Follow all applicable OHS regulations for repair and
replacement of worn-out subassemblies. Dispose of the entire product
at a recyclable materials collection point.
Each identified hydraulic system fault, i.e. oil leaks, must be
immediately rectified to prevent environmental pollution. Do not let the
oil to be spilled on the ground when replacing the fluid. Store the used
oil in sealed vessels (e.g. used for fresh oils) and periodically dispose
of its at fuel stations.
Only the personnel experienced in the design and operation of
the machine is authorised to dismantle it. Follow the general safety
precautions for agricultural equipment ser vicing during disassembly
(repairs). Due to the large weight of components (over 20 kg), use
suitable lifting equipment for disassembly.
Do not leave any worn-out or damaged parts from repairs or
disposal on the field or farm premises. Such items must be stored at a
designated area (with restricted access of personnel and animals) and
periodically disposed of at a scrap collection point.
Dispose of the entire machine at a specialist facility which handles
the dismantling of machines and equipment. If disposing of the machine
on your own, segregate all dismantled components in accordance to
the material type: rubber, ferrous metals and non-ferrous metals.
Submit all rubber parts for re-use (recycling or disposal).
METAL-FACH Sp. z o.o. is liable for the design and build in order to
eliminate all hazards, some partial risk is unavoidable in operation of
the trailer. The residual risk stems mostly from improper behaviour of
the operator caused by lack of knowledge or attention. The greatest
hazards occur during the following forbidden actions:
• The trailer is operated by minors or persons who are not licensed for
trac tor driv ing, or who are u nfamiliar w ith the Oper ating Instr uctions.
• The trailer is operated by persons who are ill or under the influence
of alcohol or other intoxicants.
• The trailer is used for purposes other than specified in the Operating
Instructions.
• A person is present between the tractor and the trailer with the
tractor's engine running.
• Bystanders, especially children are present near the working trailer.
• The trailer is cleaned while working.
• Manipulation of the driving unit on the tractor and the moving
elements of the trailer while the machines are working.
• Checking the trailer's technical condition while it is running.
While presenting the residual risk the trailer is treated as designed
according to the state of knowledge at the year of manufacture and
maintaining the basic OH&S rules.
11.2. EVALUATION OF THE RESIDUAL RISK
Follow these guidelines:
1. Always follow the safety regulations described in the Operating
Instructions.
2. Read and fully understand the Operating Instructions.
3. Keep your hands out of hazardous spaces.
4. It is forbidden to operate the trailer in the presence of bystanders
and in particular children.
5. Maintenance and repairs of the trailer shall only be performed by
trained personnel.
6. The trailer shall only be operated by persons who have been
trained in its operation and have familiarised themselves with the
Operating Instructions.
7. The trailer is protected against access by children.
Only then can you eliminate the residual risks to people and the
environment when using this trailer.
The residual risks are present when the
aforementioned rules are not followed.
1. The manufacturer provides a trailer designed and built in
compliance with the current standards. The manufacturer
guarantees that the supplied trailer is free of manufacturing
defects.
2. Metal-Fach Sp. z o.o. provides 12–month warranty service for the
trailer starting from the date of first sale, provided the trailer is
used for its intended purpose and the recommendations contained
in the manual are followed.
3. The warranty card properly filled in at the Outlet is the confirmation
of the manufacturer's warranty; the acceptance of the warranty
conditions must be confirmed with the customer's signature.
4. The quality warranty covers the machine defects caused by
defective manufacturing, material defects and latent defects.
5. The warranty does not cover the assemblies and parts which are
subject to normal wear and tear.
6. The warranty does not cover any mechanical damage or other
damage resulting from improper use, improper maintenance or
improper adjustment of the trailer.
7. The warranty does not cover any damage resulting from improper
storage of the machine.
8. Any unauthorised modifications in the construction of the machine
introduced by the user will result in automatic termination of the
warranty.
9. The manufacturer shall not be held responsible for loss, damage
or destruction of the product resulting from causes other than
defects of the supplied machine.
10. Dur ing the warr anty per iod the manuf acturer w ill repair a ny defects
which occurred as a result of the manufacturer's negligence.
11. The warranty repair shall be made within 14 working days of the
notification/supply of the trailer to the designated service station
or at another time agreed upon by the parties.
12. The warranty is extended by the time required to complete the
rep air.
13. All repairs which are not covered by the warranty performed by
authorised service stations are made at a full cost payable by the
user. Before such repairs, the service station will inform the user
of the suggested cost, time and scope of the repair.
14. The Customer makes the decision whether to commence a payable
repair of the trailer with a warranty valid at the time of repair.
Current information about the products is
available atwww.metalfach.com.pl