Lorries PB Series User manual
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www.lorries.co
USER MANUAL
SIDEBOARD TRAILERS, PLATFORM TRAILERS, BOAT TRAILERS
AND TRAILERS FOR MACHINES TRANSPORTATION
UNIVERSAL TRAILERS |BOAT TRAILERS |CAR TRAILERS
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Thank you for choosing
a trailer for years!
The Lorries brand guaranties that you have just purchased a product created with
practical needs in mind.
When designing your trailer, we thought about its capabilities and your comfort of use.
Expert knowledge of our designers allowed us to design products based on current trends
and modern materials and technologies.
Our many years of experience in the metal industry and the use of a modern machine
park guarantee the highest quality and repeatability.
We are sure that Lorries trailer will be a perfect companion of your tasks or passions!
We reserve the right to make any constructional and technological changes that improve
the quality and aesthetics of the product, but do not aect the interchangeability of parts
and the operation of mechanisms. Such changes may not be included in the operating
instructions. Therefore, there may be small deviations from the dimensions and weights
given in the instructions.
Any comments and suggestions regarding this user manual please send to the following
e-mail address:
ATTENTION!
Together with the purchased trailer, you should receive:
1. Certicate of approval (required for rst registration)
2. Manufacturer’s declaration with data for registration purposes
(required for registration in Poland)
3. VAT invoice
4. Warranty Card
5. User Instruction (paper or electronic version)
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TABLE OF CONTENTS
General safety rules .................................................................................................... str. 4
Summarized version of the guarantee ........................................................................ str. 5
CHAPTER I - Operation of trailers
I.I Identication data ............................................................................................ str. 6
I.II Types and construction of trailers ..................................................................... str. 6
I.II.I Sideboard trailers - PB ..................................................................................... str. 6
I.II.II Platform trailers - PL ......................................................................................... str. 7
I.II.III Boat trailers - PP .............................................................................................. str. 8
I.II.IV Trailers for machines transportation - TPM ....................................................... str. 9
I.III Attaching / detaching a trailer to the vehicle .................................................. str. 10
I.IV Checking the position of the ball coupling ...................................................... str. 11
I.V Loading and unloading the trailer .................................................................. str. 12
CHAPTER II - Service, maintenance and storage of trailers
II.I Maintenance of trailers .................................................................................. str. 13
II.II Cleaning of trailer and maintenance of the zinc plated parts .......................... str. 13
II.III Storage of trailer ............................................................................................ str. 14
II.IV Correct tire pressure ...................................................................................... str. 14
II.V Electric installation ........................................................................................ str. 14
II.VI Adjustment and maintenance of the trailer braking system ........................... str. 15
II.VII Suspension and wheel bearings ..................................................................... str. 16
II.VIII Table of servicing activities ............................................................................ str. 17
CHAPTER III - User instructions
III.I Problems and solutions .................................................................................. str. 18
III.II Disposal of the trailer ..................................................................................... str. 19
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GENERAL SAFETY RULES
Before using the trailer:
1. read the operating manual and the WARRANTY BOOK,
2. the use and operation of the trailer may be performed ONLY by persons authorized
to drive a vehicle with a trailer,
3. it is forbidden to use the trailer contrary to its purpose. Anyone who uses the
trailer in a manner contrary to the purpose, in this way takes full responsibility for all
consequences arising from such use,
4. check in the vehicle registration certicate that the particular trailer model can be
connected to the vehicle (O1 position for braked trailers, or O2 for unbraked trailers)
5. pay attention to the ball hook wear
(diameter of the ball must not be lower than 50mm)
6. follow the trac rules for moving the set: car + trailer
7. make sure that the trailer is correctly attached to the car’s hook
8. make sure that the trailer lights are working properly
9. make sure that the load on the trailer is evenly distributed and properly secured
10. when parking the trailer, secure it against rolling away using the wedges*,
and in the case of the trailer with brake ADDITIONALLY apply the parking
brake.
When operating the trailer, remember that:
1. the car + trailer combination will behave dierently under certain conditions
than the car itself,
2. reaching the same speed will take longer,
3. the braking distance will be extended,
4. be careful when going down, especially on wet surfaces,
5. be careful when driving on sharp turns and reduce the speed,
6. always follow the road trac regulations,
7. do not travel with a negative vertical load,
8. vertical loads shall be applied within acceptable limits,
9. observe the permissible static vertical load and permissible total weight
of all assembled components,
10. for loading notes, see section I.V
ATTENTION!
REGISTERED TRAILER CAN ONLY BE COUPLED WITH A VEHICLE
THAT IS APPROVED FOR A TOW BAR!
TRAILERS CAN NOT BE USED FOR TRANSPORTATION OF PEOPLE.
*wedges, depending on the trailer model, are available as standard or option
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SUMMARIZED VERSION OF THE GUARANTEE
1. The guarantee is valid for a period of 24 months from the date of purchase of the
product by a natural person for purposes that are not related to the economic
activity of the person (User). If the product is purchased by the entrepreneur (User),
the warranty is valid for a period of 12 months from the date of purchase.
2. The condition for maintaining the rights resulting from the guarantee is to periodically
carry out maintenance and servicing of the trailer according to the attached operating
instructions, and in the case of braked trailers, additional periodic inspections in
accordance with the inspection card placed at the end of the guarantee card.
3. In the case of a product defect, the USER must notify the authorized representative
within 3 working days from the date of this nding. The trailer should not be used until
the defect is removed. MANUFACTURER or an authorized representative will provide
instructions for further actions.
4. Normal use and wear of parts (e.g. brake blocks, tires and bulbs) are not covered
by the warranty. The costs of delivering the product for warranty repairs and the
costs of receiving the product after warranty repair from the service indicated by the
MANUFACTURER are borne by the USER and they are not recoverable.
5. The warranty covers only the product of the MANUFACTURER, i.e. the trailer (structural
elements, chassis, body, wheels and steering system, installations), with the exception
of elements of equipment made by hand or on behalf of the USER with other entities.
6. The guarantee does not cover:
• any defects and damages disclosed or reported after the end of the warranty period;
• natural wear of parts such as: brake linings and their components, brake cables
and their components, tire treads, bulbs, etc.;
• defects and damages resulting from the impact of natural forces such as hail,
lightning, frost, water, salt, chemical substances, UV radiation, etc.;
• operating sub-assemblies and elements of equipment covered by a separate
guarantee, such as: electric winch, hydraulic pump, etc.
• damage to the subject of the guarantee resulting from conduct incompatible
with the operating instructions, in particular resulted from improper operation,
maintenance, operation, storage, use of improper consumables,
• defects and damages resulting from the change of the original form or function of
the product, including product malfunction due to a conict between selfassembled
components or parts;
• defects and damages caused during the transport of the product, caused
by improper assembly and protection of the product during transport;
• damage resulting from the random incidents (electrical damage, re, ood,
collisions and trac accidents, etc.),
• damages resulting from the way the device is operated in conditions or in a manner
inconsistent with the MANUFACTURER’S specication or user’s manual;
• maintenance activities described in the user manual, which the USER is obliged to
perform at his own expense.
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1 - ball coupler, 2 - safety cable, 3 - hand brake, 4 - supporting wheel, 5 - frame, 6 - sides, 7 - marker
lamp, 8 - mudguard, 9 - wheel, 10 - composite lamp, 11 - cargo holders, 12 - reector, 13 - tipping box
fastener (applies to trailers from PU series)
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I - OPERATION OF TRAILER
I.I Identication data - markings on the trailer
Each trailer has a Certicate of Approval and a nameplate with a permanently stamped
identication number (VIN). The nameplate is placed on the frame side member or on the
draw-bar at the front of the trailer, depending on the model In the event of damage or loss
of the nameplate, please contact our service department immediately in order to issue
a new nameplate.
The nameplate includes:
• approval number (1)
• identication number VIN (2)
• allowable total weight MC (3)
• maximum vertical load of the draw-bar (4)
I.II Types and construction of trailers
I.II.I Sideboard trailers - PB
Our oer includes standard sideboard trailers as well as sideboard tipping trailers, ideal
for transporting loose materials. PB27-4320 and PUH10-2613 models are equipped with
the overrunning brake. All other models have unbraked axis. Additionally, PB75-2613 and
PB75-2614 models are available in double-axis version.
All trailers can work with the following vehicles:
• vehicle equipped with the tow ball hook,
• vehicles equipped with 13- or 7-pin electrical socket 12V, adapter is needed in case
of 7-pin socket
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PP PS NP NBP
RP
Standard platform trailer - (PL) Integrated platform trailer - (PLI)
I.II.II Platform trailers - (PL/ PLI)
Our oer includes also two series of platform trailers, these are: platform trailers equipped
with steel ramps (PL series) and platform transporters with integrated ramps (PLI series).
All platform trailers are available in two-axle version and are equipped with the parking
brake as well as an overrunning brake, support wheel, spare wheel and manual winch up
to 1135 kg.
In addition to sideboard trailers, we oer various installation options:
at cover (PP), tarpaulin frame (PS), perforated top (NP), full at top
board (NBP) and front rail (RP). Ask dealer for details.
In the case of standard PL and PLI trailers, due to the high intensity of use, inspections
are required every 10,000 km, but at least every 3 months.
It is extremely important to evenly distribute the weight of the load on the platform,
so that the load on the ball of the tow ball is between 50 and 100kg. Driving a car too close
to the front edge of the trailer may result in too strong pressure on the ball of the tow hook.
The transported car must be properly secured against movements, and in additionally,
the wheels should be locked using the wedges (sold separately).
ATTENTION!
During transportation and moving with the carriage, both
fasteners blocking the platform in the transport position
must be ABSOLUTELY closed and secured with a cotter pin.
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I.II.III Boat trailers and trailers for water scooters transport - PP
We produce also trailers for water scooters transportation as well as for boats and yachts.
As standard, the series of PP trailers uses the WPS system (Waterproof System)
- an additional hub seal that protects the hub bearings against water ingress. This system
signicantly extends the life of bearings, hubs and complete axles. The trailers are also
equipped with a tilting lamp system, protecting the lamps from getting wet and a system
of lengthening the rear lamps, thanks to which we can extend the trailer by an additional
1.1 m (does not apply to PP75-4011 and PP13-4021 models).
GENERAL RULES REGARDING USAGE OF THE BOAT TRAILERS:
• it is recommended to t the edge of the boat and trailer before the rst use,
• do not exceed the permissible trailer load (take into account the weight of the
equipment, engine, gasoline and add up with the boat’s own weight),
• the total length of the combination (car + trailer) can not exceed 18.75 m!
• the yacht’s hull should be positioned in the such way that the trailer coupler loads
the hook on the car. The pressure on the hook should not exceed 50kg.
• the boat must rest on the bottom rollers and be supported by roller supports
or runners,
• during the transport, the boat must be secured with straps attached to the transport
holders on the trailer (so-called shackles),
• you must obey the provisions of the road law regarding the dimensions of the load
(in Poland without a permit you can drive a car with the trailer, whose width does
not exceed 3m and can not protrude from the rear of the vehicle over a distance
of more than 2m).
• before loading, check trailer lighting and tire pressure,
• it is important that the boat / scooter is located in the axis of the trailer.
CORRECT POSITIONING OF THE BOAT ON A TRAILER:
• rear side supports are mounted at the rear of the frame,
• keel of the boat should be supported on keel rolls (the whole weight),
and the rollers / side supports should be moved so that there is no play,
• the bow of the boat should be placed on the stem.
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I.II.IV Trailers for machines transportation - TPM
It is extremely important to evenly distribute the weight of the load on the
platform, so that the load on the ball of the tow ball is between 50 and 100kg. Loading
the trailer too close to the front edge of the trailer may result in too strong pressure on
the ball of the tow hook. The transported machine must be properly secured against any
movements.
!ATTENTION!
When transporting and moving with a TPM trailer
- it is IMPERATIVE to block the ramp lock.
ATTENTION!
The weight on the hook should be proportionally distributed so that the trailer does not overturn.
LAUNCHING
During the launching, the trailer should be immersed only up to the height of the rims.
It is not recommended to immerse brakes, cables, etc. Lamps should be open and raised
when launching. If water gets into the brakes, frequent service inspections are necessary.
Salt water causes corrosion. The braked trailers can be optionally equipped with a drum
rinsing system.
All our trailers from the PP series, to allow the maximum
adjustment of the rollers / skids to the shape and correct
mounting of your boat enable:
• adjusting the position of the up-down
and left-right rollers,
• regulation of the top-bottom and right-left skids,
• adjustment of the bottom rollers,
• adjustment of the belt winch position on the draw-bar,
• regulation of the height and tilting angle of the bow.
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I.III Attaching / detaching a trailer to / from the vehicle
Attaching the trailer:
1. Pull up the trailer to the position where the coupler is located above the ball of the
vehicle’s hook. Open the coupling head. The coupler must be in the opened position - X.
2. Lower the ball of the hook. The coupler will be closed on the ball and you will hear
a click. The indicator will be in the green „+” position.
3. In order to check that the tow-bar is secure, check the position of the indicator
(KNOTT coupler) and the clearance between the hook and the ball.
4. If the indicator is in the red position „-” when fastened to the vehicle’s hook, it means
that the vehicle and the trailer are not connected correctly and it is NOT allowed
to drive with the trailer. The cause of this situation may be the wear of the hook
or the ball of the hook.
5. Pull the hook a few times upwards to make sure it is properly hooked.
6. Install a safety rope on the coupler of the tow hook:
• UNBRAKED TRAILERS - so as to protect the ball coupling against contact
with the ground in the event of a release;
• BRAKED TRAILERS - so that if the ball hitch goes out, the brakes of the trailer
is aplied;
7. Connect the trailer’s electrical installation to the car’s electrical installation
by inserting the plug from the trailer into the socket on the towing hook.
8. Check proper operation of the lights.
9. The support wheel should be raised as much as possible and locked. Secure against
loss and possible looseness. The support wheel should be parallel to the direction
of travel. Make sure that the rope is not wrapped around the support wheel.
10. When detaching the coupler form the ball: press the tab and pull the handle upright.
The coupler will be unhooked and will open automatically. The indicator should be in
the red „X” position. Then lower the support wheel down so that the disconnection
takes place. Remove the plug from the socket and remove the safety rope.
!ATTENTION!
DRIVING WITH A TRAILER WITH THE INDICATOR IN „X” POSITION
IS NOT ALLOWED!
„-”red – NOT HOOKED „+”green – HOOKED „X”red – OPENED
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I. IV Checking the position of the ball coupler
The ball coupling can be rotated up to +/- 25° to the longitudinal axis of the vehicle.
It is also possible to turn maximum +/- 20o along the horizontal plane.
The ball coupling can be secured in both unhooked and hooked positions.
The coupling height of the towing vehicle and trailer depends on:
• the pressure in the vehicle and trailer tires recommended by the manufacturer
• the load on the trailer - it should not exceed the maximum value and should be evenly
distributed
• the trailer is properly connected to the towing vehicle
On a at surface, without any inclinations, the height of the vehicle coupling and trailer
should coincide, and its axis should be at a height of 350-420 mm from the ground when
the car is loaded to the PTW (permissible total weight).
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I.V Loading and unloading the trailer
• The nameplate and registration document indicate the gross weight of the trailer.
• The trailer is designed in such way that the center of gravity is just in front of the axle.
• The load must be distributed evenly as close as possible to the front, taking into
account the maximum permissible vertical load of the draw-bar S - stamped on the
body of the coupling head.
• The load must be secured against displacement.
• The load should be placed in such way that it does not exert signicant pressure on
the side walls, because it may cause bending of the sides and damage to the load.
• The correct pressure on the ball of the towing hook is very important for stability. This
pressure should be at least 4% of the total actual trailer weight, or minimum of 25kg.
• Do not exceed the maximum permitted load on the ball hook for your car and trailer.
The load on the ball of the towing hook is a force called the support load.
• Too small support load usually appears when the trailer has a heavier back.
It can then occur:
- lack of stability of the vehicles combination,
- vibrations or dislocations of the vehicles combination,
- extended braking distance,
- tilt the vehicle headlights down and shorten the range of lights,
- dislocating the trailer,
• Too large supporting load, i.e. a situation when the trailer has a heavier front, may
cause:
- tilting the headlamps up, causing the drivers driving from the opposite direction to dazzle
- diculty in controlling the vehicle,
- reduced grip in case of cars with front-wheel drive,
• Unloading and loading of the trailer should take place only when the vehicle is placed
on a horizontal hard surface, and the whole combination (car and trailer) is set for
straight-ahead driving.
• In winter, pay special attention to snow and ice that can be on the tarpaulin
of the trailer. If necessary, remove it.
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II - INSPECTIONS AND MAINTENANCE OF THE TRAILER
II.I Trailer maintenance
• All fastening elements should be checked and tightened for the rst time after 500
km, and then after 1000 km and then every 5000 km (this does not apply to the
mounting bolt on the wheel hub).
• The bolts xing the wheels should be tightened after 50km of the drive, and then
every 5000km and after each replacement of the wheel or tire. The screws should be
tightened diagonally with a torque wrench (steel rims - 90Nm, aluminium - 100Nm).
• Before each trip of a trailer with a tilting box, check that the lock that fastens
the draw-bar and the body is properly fastened and that a safety device is tted. This
applies to the following tipping trailers: PU75-2012, PU75-2613 and PUH10-2613
• Regularly check the condition of the ball of the car’s hook, its diameter should
be 50mm +/-5mm.
• If there is a clearance between the ball and the coupling head, the symptom during
operation may be, for example, knocking, the ball or towing eye is worn and the worn
part must be replaced with a new one.
• It is NOT ALLOWED to make any changes to the coupling head.
• Regularly check the presence of the grease at the place where the hook is attached
to the ball of the hook and ll up if necessary. This operation should be performed
depending on the operation, not less than every 1000 km.
• The overrun device must be greased every 3000 km.
II.II Cleaning of the trailer and maintenance of the zinc plated parts
The frames and draw-bars of all our trailers are subjected to a hot-dip galvanizing process.
In turn, the sideboards and extensions are made of electrolytically galvanized sheet.
The zinc coating is resistant to mechanical damage (e.g. impacts). It is also the only
anti-corrosion coating that does not lose its properties in case of local damage;
it is possible thanks to the so-called electrochemical protection.
Over time, the zinc coating changes its appearance from shiny to grey and matte. This
happens as a result of the reaction that takes place between zinc and air. The inuence
of water leads to the formation of zinc hydroxide. Then it turns into patina, which binds
to the substrate and does not let water through.
When a patina is formed in a proper way, it will stop the occurrence of subsequent chemical
reactions. Thus, it eectively protects against corrosion. Patina is formed on average from
three months to even two years. The time depends on the conditions for the zinc.
Moisture may cause white spots on the surface. It is the so-called zinc hydroxide,
white corrosion, which does not deteriorate the quality of the protective layer and can
not be the cause of the complaint.
ATTENTION!
GALVANIZED ELEMENTS SHOULD BE FREQUENTLY WASHED
AND AFTER CONTACT WITH ROAD SALT, SEA SALT OR CHEMICALS EVERY TIME!
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II.III Storage of trailer
It is recommended that the trailer during storage should be protected against weather
conditions, especially those that cause corrosion and accelerate the aging of tires or the load
on the tarpaulin frame (rain, snow, sun).
II.IV Correct tire pressure
Dierent types of tires require dierent pressures at dierent loads. Therefore, in order for
the tires to function properly and not wear out too quickly, please follow the tire pressures
recommended by the manufacturer. The maximum values are always placed on the tire.
Examples of markings are showed on the pictures below.
II.V Electric installation
All our trailers, as standard, are equipped with 13-pin plugs (designed for trailers with their
own reversing light) and are designed for 12V voltage.
If the trailer is connected to a 7-pin socket, use the appropriate adapter / adapter.
However, remember that in this case, when reversing the reversing light will
not work!
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11
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View of the pins in 13-pin plug
NO CABLE COLOR CONNECTION
1 Yellow Left turn signal
2 Blue anti-fog lights
3 White Mass for 1...8 pins
4 Green right turn signal
5 Brown Right position light
6Red braking light (stop)
7 Black Left position light + registration plate
8 Grey back-up light
9 brown-blue spare
10 spare
11 spare
12 spare
13 spare
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II.VI Adjustment and maintenance of the trailer braking system
Trailers with brakes are equipped with overrun devices that use the inertia of the trailer
during braking. During braking, the trailer exerts pressure on the overrun device, which
by means of the transmission system (brake rod, rudder bar and brake lines) causes
the operation of the trailer axle brake. The overrun mechanism is constructed in such
a way that it allows reversing with the trailer without additional activities. When switching
from reverse to forward ride, the braking system is automatically ready for operation.
In addition, the braked trailers have a parking brake system which is activated by means
of the hand lever located at the overrun device. It ensures braking of the trailer on falls
up to 16%
Pushing and releasing the parking brake (manual) is done by vigorously pulling / releasing
the brake lever (gure below).
ATTENTION!
IT IS RECOMMENDED THAT IN THE EVENT OF A LONGER
STOPPAGE ON A SLOPE, APPLY THE HANDBRAKE
AND ADDITIONALLY PLACE WEDGES UNDER THE WHEELS.
The trailer braking system requires maintenance and adjustments on the site. When
using the trailer, regularly pay attention to the depth of insertion of the tow-bar.
If it is necessary to press the coupler over 45-50mm to obtain braking, it must be repaired
by a professional. You should also regularly check the wear of the brake shoes.
WE ARE RECOMMENDED TO MAKE ADJUSTMENTS AND REPAIRS OF BRAKES
ON THE SERVICE ONLY BY AUTHORIZED SPECIALISTS.
The overrun device, to facilitate relling or replacement of the lubricant, is equipped with
so-called grease nipples, thanks to which this operation can be easily performed using
a manual or pneumatic grease gun. A special lithium grease for bearings, e.g. SPHEEROL
EPL2, is recommended for maintenance of the overrun device.
Handbrake lever
Grease nipples
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Adjustment of the braking system:
1. To adjust the braking system, lift the trailer up from the adjustment side.
2. Remove the wheel on the side where we adjust the brakes so that the drum can
be rotated freely.
3. Adjustment is carried out using the adjusting screw (1) of the expansion cube, which
is located on the inside of the plunger.
4. The adjustment consists in loosening and tightening the adjusting screw until
the brake shoes start to rub against the drum and the wheel can be rotated with
a noticeable resistance.
5. Then, slightly loosen the screw so that the wheel turns easily and the jaws lightly rub
against the drum.
6. Repeat this operation separately for all trailer wheels that are braked.
7. If after adjusting the brake rod is not tight, it must be tensioned using the ball nut
and counter nut.
II.VII Suspension and wheel bearings
Trailers of the LORRIES brand are equipped with maintenance-free bearings, factory-
supplied with an appropriate amount of grease by the manufacturer. Therefore, it is not
necessary to check the amount of grease in the bearings
If the bearing is damaged, the entire brake drum must be replaced, as the bearing is an
integral part of the brake drum and cannot be changed by the user.
ATTENTION!
WHEN REPLACING THE BRAKE DRUM, USE ONLY A NEW AND ORIGINAL
NUT. THIS NUT SHOULD BE TIGHTENED USING THE TORQUE WRENCH
RECOMMENDED BY THE MANUFACTURER.
SOURCE KNOTT SP. Z O.O.
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II.VIII Table of servicing activities
PERIOD TYPE OF ACTIVITY
Regularly • Keeping the trailer clean
• Taking care for the tow bar to be clean
and lubricated
• CLEANING THE TRAILER AFTER EACH
contact of the trailer with salt road
and sea water
• Checking the correct tire pressure
• Check the lighting in the trailer
(direction indicators, position and side
marker lights, STOP light)
• Check the condition of the sideboards
and fastenings,
After one month or 500km • Inspection of the wheel bearing
adjustment
• Condition of the ball coupling
• Inspection of the braking system
• check and tighten all fasteners
After 6 months or 1,000km • Inspection of the braking system
• Brakes adjustment
• Checking the adjustment of bearings
• Lubrication of the bearing bushings for
the overrun device
• Tires usage
• check and tighten all fasteners
After 12 months or 5,000km • Inspection of the braking system
• Ropes maintenance
• Inspection of the overrun device
• Inspection of the bearings adjustment
• Condition of the ball coupling
• Tires usage
• Inspection of the wheel alignment
Every 12 months or 10,000-15,000km • Inspection and adjustment
of the braking system,
• Inspection and maintenance
of the overrun device,
• Tires condition,
• Bearings adjustment,
• Check cables and cable fastening
• maintenance of the sideboards
and ramps hinges and fastenings
• KInspection of the ball coupler
condition,
• check and tighten all fasteners
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CHAPTER III - User instructions
III.I Problems and solutions
Below we described typical faults and what should be checked and how to solve
the problem.
PROBLEM CAUSE SOLUTION
BRAKING SYSTEM
The trailer jerks when braking.
The trailer brakes during the
reduction of gears in the car.
The shock absorber in the
overrun device is damaged. Replace the shock absorber.
The trailer brakes as soon
as the accelerator pedal is
released
The shock absorber in the over-
run device is damaged.
The brake cables are too tight.
Replace the shock absorber.
Loosen the brake cables.
The trailer clanks The ball coupling or ball of the
towing hook is worn out.
Check the cause of the play.
Replace the tow hook
or tow-bar.
Undoing with a trailer is di-
cult or impossible
The brakes are too tight.
The brake cables are stretched. Adjust the brakes.
The brakes overheat
• Brakes are incorrectly
adjusted
• the brake hose is damaged
• the return spring
on the cladding is damaged
• the handbrake has not been
fully released
• wear of trailer hub bearings
Adjust the brakes.
Check the brake cables.
Check the hub bearings
and replace, if necessary.
The trailer easily gets into
the skid.
The trailer tugs sideways.
Brakes are incorrectly adjusted.
Adjust the brakes and check
that the brake hoses are not
rusty.
The trailer brakes all the time. Brake pads stuck to the drum
after a long period of non-use
Free the cladding by gently
striking the side of the anchor
plate
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PROBLEM CAUSE SOLUTION
Blocking wheels while driving Opening of the brake
shoes in the drums
SERIOUS FAILURE contact with
the service - replacement
of the jaws set
Uneven braking Brake cables and brake
cylinders are stuck
Replacement of cables and
spreaders with new ones
or their lubrication
The parking brake works too
poorly
Incorrect brake setting.
The parking brake lever is not
tightened.
Set the brake correctly
Tighten the handbrake lever
During braking you can hear
disturbing noises: grinding,
metal rubbing against metal
Brake lining wear on at least
one jaw.
Replace the set of brake shoes
on the axle
BALL COUPLER
After mounting the towing ball
on the ball, the catch does
not latch
• Too large diameter of the ball
hook
• Dirt and stopped internal
parts of the hitch
Replace the ball of the hook
Clean and lubricate the hitch
if necessary, replace the hitch
with a new one
The trailer can not
be detached from the hook
Mechanical damage to the ball-
hook, irregularities on the ball
Position the trailer in one line
and unhitch the trailer
Replace the ball of the hook
There is a clearance between
the hook and the ball
Worn coupler
Worn tow-hook
Too small diameter of the ball
Replace the ball
of the tow-hook
Replace the ball coupler
ATTENTION!
DAMAGE TO THE MECHANISM THAT DEACTIVATES THE OVERRUN BRAKE
USUALLY ARISES WHEN DRIVING THE WHEEL (WHEELS) ONTO THE CURB
WHEN REVERSING. AT THE SAME TIME, THE OVERRUN BRAKE SHOULD
AUTOMATICALLY TURN OFF. IF THIS IS NOT THE CASE, LUBRICATE
THE ROLLER CAM THAT DISENGAGES THE BRAKE AND THE CAM
SURFACE INSIDE THE BRAKE.
III.II Disposal of the trailer
LORRIES trailers are products consisting of many materials. Some elements are made
of plastic. When the trailer reaches the end of its life, the trailer should be taken
to a company authorized to utilize the vehicles for recycling.
20
+48 48 377 99 01
STALKO Spółka z ograniczoną odpowiedzialnością sp.k.
(dawniej HITZE Sp. z o.o.)
ul. Solec 24/253, 00-403 Warszawa, POLAND
Headquarters:
ul. Gdyńska 32, 26-600 Radom, POLAND
This manual suits for next models
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