PRONAR T780 User manual

PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
tel.: [phone] [phone]
[phone] [phone]
fax: [phone] [phone]
www.pronar.pl
OPERATOR’S MANUAL
TRAILER
PRONAR T780
Translation of the original instructions
ISSUE 3B-01-2010 PUBLICATION NO 163N-00000000-UM

INTRODUCTION
Information contained herein is current at date of publication. As a result of improvements,
some numerical values and illustrations contained in this publication may not correspond to
the factual specification of the machine supplied to the user. The manufacturer reserves the
right to introduce design changes in machines produced that facilitate operation and improve
the quality of their work, without making minor amendments to these operating instructions.
Please send comments and observations on the subject of the design and operation of the
machine to the manufacturer. This information enables objective evaluation of the machines
produced and provides indications for their further modernisation. Information on significant
design changes are passed on to users with the aid of the information insert attached to
these operating instructions (annexes).
The operating instructions are an integral part of the machine's documentation. Before using
the tractor, the user must familiarise himself with the content of these instructions and
observe all recommendations. This guarantees safe operation and ensures malfunction free
work of the machine. The machine is designed to meet obligatory standards, documents and
legal regulations currently in force.
The instructions describe the basic principles of safe use and operation of T780 trailer. If the
information contained in the operating instructions needs clarification then the user should
refer for assistance to the sale point where the machine was purchased or to the
manufacturer.
Manufacturer's address:
PRONAR Sp. z o.o.
ul. Mickiewicza 101A
17-210 Narew
Contact telephones
[phone] [phone]
[phone] [phone]

Information, descriptions of danger and precautions and also recommendations and orders
associated with user safety instructions are marked:
and also preceded by the word "DANGER”. Failure to observe the instructions may
endanger the machine operator's or other person's health or life.
Particularly important information and instructions, the observance of which is essential, are
distinguished in the text by the sign:
and also preceded either word "ATTENTION". Failure to observe the instructions may lead
to damage to the machine as a result of improper operation, regulation or use.
In order to focus the user's attention on the need to perform technical maintenance, the
relevant section of the operating instructions is marked with the pictogram:

TABLE OF CONTENTS
1 BASIC INFORMATION 1.1
1.1 IDENTIFICATION 1.2
1.2 INTENDED USE 1.3
1.3 FITTINGS 1.6
1.4 WARRANTY CONDITIONS 1.7
1.5 TRANSPORT 1.8
1.6 ENVIRONMENTAL HAZARDS 1.9
1.7 WITHDRAWAL FROM USE 1.9
2 SAFETY IN USE 2.1
2.1 BASIC SAFETY PRINCIPLES 2.2
2.2 PRINCIPLES WHEN TRAVELLING ON PUBLIC ROADS 2.7
2.3 DESCRIPTION OF MINIMAL RISK 2.8
2.4 INFORMATION AND WARNING STICKERS 2.9
3 CONSTRUCTION AND PRINCIPLE OF OPERATION 3.1
3.1 TECHNICAL SPECIFICATION 3.2
3.2 CHASSIS 3.3
3.3 LOAD BOX 3.5
3.4 WORKING BRAKE 3.8
3.5 PARKING BRAKE 3.9
3.6 HYDRAULIC TIPPER SYSTEM 3.10
3.7 ELECTRICAL SYSTEM, WARNING SIGNS AND INDICATORS 3.11
4 CORRECT USE 4.1
4.1 PREPARING FOR WORK BEFORE FIRST USE 4.2
4.2 CHECKING THE TRAILER'S TECHNICAL CONDITION 4.3
4.3 ATTACHING TO TRACTOR 4.4
4.4 LOADING 4.6
4.5 TRANSPORTING LOADS 4.11
4.6 UNLOADING 4.12
4.7 DISCONNECTING FROM TRACTOR 4.16

4.8 PROPER USE AND MAINTENANCE OF TYRES 4.16
5 TECHNICAL MAINTENANCE 5.1
5.1 INSPECTION AND REGULATION OF WHEEL AXLE BEARINGS 5.2
5.2 REGULATION OF MAIN BRAKES 5.3
5.3 REGULATION OF MAIN BRAKES 5.5
5.4 PNEUMATIC SYSTEM OPERATION 5.6
5.5 HYDRAULIC SYSTEM OPERATION 5.8
5.6 LUBRICATION 5.10
5.7 INSTALLATION AND DISASSEMBLY OF THE FRAME AND CANVAS COVER 5.14
5.8 INSTALLATION AND DISASSEMBLY OF EXTENSION WALLS 5.15
5.9 ABSORBER SPRING SYSTEM MAINTENANCE 5.16
5.10 STORAGE 5.16
5.11 TRAILER PREPARATION FOR END OF SEASON 5.16
5.12 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.17
5.13 FAULTS AND MEANS OF REMEDYING THEM 5.18
5.14 LIST OF BULBS 5.19

1.1
SECTION
1
BASIC INFORMATION
IDENTIFICATION
INTENDED USE
FITTINGS
WARRANTY CONDITIONS
TRANSPORT
ENVIRONMENTAL HAZARDS
WITHDRAWAL FROM USE

1.2
1.1 IDENTIFICATION
DRAWING 1.1
A
LOCATION OF THE DATA
PLATE AND SERIAL NU
MBER
(1) data plate, (2) ALB data plate, (3) serial number
The trailer is marked with a data a plate (1) and a serial number (3). The trailer's all
identification markings are placed on the front beam of the upper frame, on the right side of
the trailer. The factory number is stamped on a rectangle area painted silver. When buying
the trailer check that the serial numbers on the machine agree with the numbers written in the
WARRANTY BOOK, in the sales documents and in the OPERATING INSTRUCTIONS.
The meaning of the individual fields found on the data plate are presented in the table below:

1.3
ITEM MARKING
A General description and purpose
B Symbol /Type
C Year of manufacture
D Seventeen digit serial number (VIN)
E Official certificate number
F Tare weight
G Maximum gross weight
H Carrying capacity
I Maximum hitch load (not applicable)
J Permissible front axle load
K Permissible rear axle load
The factory numbers of the axle shafts and their types are stamped onto the identity plate
secured to the central part of axle shaft beam. If the trailer is equipped with a pneumatic
braking system with an automatic brake force regulator, an additional data plate is placed on
the front wall of the load box – figure (1.2A).
DRAWING 1.2
A
EXAMPLE OF ALB DATA
PLATE

1.4
1.2 INTENDED USE
The trailer is designed for transport of harvested crops and agricultural products as well as
loose and bulk materials in the vicinity of the farm and on public roads at a maximum speed
of 40 km/h. The trailer is also designed for transport of harvested crops and agricultural
products transported on pallets.
TABLE 1.1 RECOMMENDED TYPES OF PALLETS
PALLET NAME AND SITE LENGTH
[mm]
WIDTH
[mm]
HEIGHT
[mm]
EUR – standard 1 200 800 144
EUR – 1/2 800 600 144
EUR – extended 1 200 1 200 144
ISO 1 200 1 000 144
The trailer must not be used in any way other than that described above. Using it as intended
also involves all actions connected with the safe and proper operation and maintenance. The
trailer is not intended or designed for transporting people or animals.
It is acceptable to transport construction materials, mineral fertilisers, pasture salt and
mineral mixes, provided the conditions indicated in section 4. Non-compliance with the
recommendations concerning transport and loading of this type of materials could damage
the trailer or invalidate the guarantee.
The trailer may only be used by persons, who:
•are familiar with the contents of this publication and with the contents of the
agricultural tractor Operator's Manual,
•have been trained in trailer operation and work safety,
•have the required authorisation to drive and are familiar with the road traffic
regulations and transport regulations.
The braking system and the light and indicator system meet the requirements of road traffic
regulations. The maximum speed of the trailer on public roads is 30 km/h in Poland (pursuant
to Road Traffic Act of June 20th 1997, art. 20). In the countries where the trailer is used, the

1.5
limits stipulated by the road traffic legislation in force in a given country must be observed.
The trailer's speed must not, however, be greater than the maximum design speed of 40
km/h. Axle system (axles, wheels and tyres), meet the requirements of agricultural trailers.
The trailer user shall familiarise himself with the contents of the operating instructions and
comply with them,
DANGER
The trailer must not be used for purposes other than those for hich it is intended, in
particular:
•for transporting people and animals,
•for transporting loose unsecured toxic materials, if there is a possibility of causing
environmental damage,
•for transporting machines and equipment, ith centre of gravity location impairing
the trailer stability,
•for transporting loads ith uneven loading and overloading of axles,
•for transporting unsecured loads, hich may move in the load box platform,
•tipping the load box (unload) on an uneven or soft ground.
Requirements concerning trailer operation with agricultural tractor are presented in the table
below.
TABLE 1.2 THE AGRICULTURAL TRACTOR'S REQUIREMENTS
CONTENTS UNIT REQUIREMENTS
Brake system
Double conduit pneumatic system
Pressure rating of the pneumatic system
-
kPa
sockets compliant with PN-
ISO 1728:2007
600
Hydraulic system
Hydraulic oil
Pressure rating of the system
Oil demand:
-
MPa
l
HL 32
16
68

1.6
CONTENTS UNIT REQUIREMENTS
Electrical system
Electrical system voltage
Attachment socket
V
-
12
7 polar compliant with ISO
1724
Tractor hitches
Upper transport hitch with a minimum
horizontal traction force
kN 70
Other requirements
Minimum power demand kW /KM 107 / 146
 The minimum towing power required to tow a trailer with a total weight of 27,000 kg, equipped with brakes.
 The minimum power requirements is the tractor's minimum power required to tow a single trailer in medium
or difficult terrain conditions. Average or difficult terrain conditions are defined as hard and not marshy ground at
an inclination not exceeding 5°. Data indicated in table (1.2) refer standard T780 trailer.
1.3 FITTINGS
Standard equipment as well as special fittings and accessories available on order are given
in table (1.3).
TABLE 1.3 FITTINGS OF THE T780 TRAILER
FITTINGS T780
OPERATING INSTRUCTIONS SD
WARRANTY BOOK SD
Connection lead for the electrical system SD
Wheel wedges SD
load box walls without chute openings 800 mm SD
Side pull-off mechanism, SD
Wall extensions 600 mm SD
Rear hitch, OP
Warning reflective triangle OP

1.7
FITTINGS T780
Slow-moving vehicle warning sign OP
Fenced platform OP
Chute OP
Toolbox OP
Frame with canvas cover OP
Spare wheel OP
Spare wheel holder OP
Rear under run protective device OP
Set of walls with the side chute openings - left or right execution, lateral
chute channels OP
SD – standard fittings, OP – fittings available at the customer's request
1.4 WARRANTY CONDITIONS
PRONAR Sp. z o.o., Narew guarantees the reliable operation of the machine when it is used
according to its intended purpose as described in the OPERATOR'S MANUAL.
The repair period is specified in the WARRANTY BOOK.
The guarantee does not cover parts and sub-assemblies of the machine which are subject to
wear in normal usage conditions, regardless of the warranty period. normal tyre wear, brake
linings, mechanical damage, damage arising from improper use, regulation and maintenance.
Detailed guarantee regulations are contained in the WARRANTY BOOK attached to each
machine.
ATTENTION!
Demand that the seller carefully and precisely fills out the WARRANTY BOOK and
guarantee repair coupons. A missing date of purchase or sale point stamp, may make
the user ineligible for any arranty repair or refund.

1.8
1.5 TRANSPORT
The trailer is ready for sale in a completely assembled state and does not require packing.
Packing is only required for the machine's technical and any extra fittings. The trailer is
delivered to the user either transported on a vehicle or, after being attached to a tractor,
independently (towed).
ATTENTION!
When transporting independently, the user must familiarise himself ith the content of
these instructions and observe their recommendations. When being transported on a
motor vehicle the trailer must be mounted on the vehicle's platform in accordance ith
the transport safety requirements. The driver of the vehicle should take particular care
hile transporting the trailer. This is due to the vehicle's centre of gravity shifting
up ards hen loaded ith the machine.
When loading and unloading the trailer, comply with the general principles of workplace
health and safety for reloading work. Persons operating reloading equipment must have the
qualifications required to operate these machines.
The trailer should be attached firmly to the platform of the vehicle using straps or chains fitted
with a tightening mechanism. The fastening equipment used must have a valid safety
certificate. Wedges or other objects without sharp edges should be placed under the wheels
of the trailer to prevent it from rolling. The wedges must be fixed to the platform of the
vehicle. During reloading work, particular care should be taken not to damage parts of the
trailer's fittings or the lacquer coating.
Fixing belts or chains can be attached to transport lugs, welded to the bottom side of lower
frame. Longitudinal rails and other strong structural elements of the upper or lower frame can
be also used to secure the load. When securing the load special attention should be paid to
correct mounting of the lockbox.
1.6 ENVIRONMENTAL HAZARDS
A hydraulic oil leak constitutes a direct threat to the natural environment owing to its limited
biodegradability. While carrying out maintenance and repair work which involves the risk of
an oil leak, this work should take place on an oil resistant floor or surface. In the event of oil
leaking into the environment, first of all safeguard the source of the leak, and then remove
the leaked oil using available means. Remaining oil must be collected using sorbents.

1.9
1.7 WITHDRAWAL FROM USE
Should the user decide to withdraw the machine fro use, the entire trailer should be taken to
a scrap yard approved by local authorities. When spare parts are changed, worn out or
damaged parts should be taken to a collection point for recyclable raw materials. Hydraulic oil
should be taken to the appropriate facility dealing with the re-use of this type of waste.

1.10

2.1
SECTION
2
SAFETY IN USE
BASIC SAFETY PRINCIPLES
PRINCIPLES WHEN TRAVELLING ON PUBLIC ROADS
DESCRIPTION OF MINIMAL RISK
INFORMATION AND WARNING STICKERS

2.2
2.1 BASIC SAFETY PRINCIPLES
•Before using the trailer, the user must thoroughly familiarise himself with the content of
these instructions. While using it, follow all the recommendations contained in them.
•The trailer may only be used and operated by persons qualified to drive agricultural
tractors and agricultural machines and trained in the use of the machine.
•If the information contained in the operating instructions is difficult to understand,
contact a seller who runs an authorised technical service on behalf of the
manufacturer, or contact the manufacturer directly.
•Careless and improper use and operation of the trailer, and non-adherence to the
recommendations included in these instructions are dangerous for the health.
•Non-adherence to the principles of safe use creates a danger for the health and life of
the operator and others.
•Be warned that a minimal risk does exist, and for this reason the fundamental basis for
using this trailer should be the application of safety principles and sensible behaviour.
•The trailer must never be used by persons who are not authorised to drive agricultural
tractors, including children and people under the influence of alcohol or other drugs.
•The trailer must not be used for purposes other than those for which it is intended.
Anyone who uses the machine other than the way intended takes full responsibility on
himself for any consequences of this use.
•Any modification to the trailer frees PRONAR Narew from any responsibility for
damage or detriment to health which may arise as a result.
•. In particular, check the technical condition of the hitch system, the axle system, the
brake system, indicator lights and the connective elements of the hydraulic, pneumatic
and electrical systems.
•The trailer can only be stood on when it is absolutely motionless and the tractor engine
is switched off.
•The trailer unhitched from tractor must be immobilised with parking brake. If the
machine is positioned on a slope or elevation it shall be additionally secured against

2.3
moving by placing wedges or other objects without sharp edges under the trailer's
wheels.
•People or animals must not be carried.
•The trailer and tractor must not be attached if the hydraulic oil in the two machines is
of different types.
•While connecting the trailer to the tractor, use the appropriate hitch. After linking the
trailer, check the hitch safeguards.
•Be especially careful when attaching the machine.
•When attaching, there must be nobody between the trailer and the tractor.
•Do NOT proceed with disconnecting trailer from the tractor when load box is raised on
telescopic cylinders. Exercise caution when disconnecting trailer.
•Regularly check the condition of connections and safety devices.
•Prior to tipping the load box, place the tipping pins on the intended unloading side.
Check if the pins are correctly inserted and secured.
•. Using third-party pins could damage the trailer.
•The hydraulic system is under high pressure when operating.
•Regularly check the technical condition of the connections and the hydraulic and
pneumatic leads.
•Prior to moving off make sure that tipping pins connecting the lockbox and the lower
frame and the side wall hinge pins are secured against falling out.
•The trailer's maximum carrying capacity must not be exceeded.
•Load must be uniformly distributed and it must not obstruct visibility or hinder driving.
•Loading and unloading work should be carried out by someone experienced in this
type of work.
•When unloading, tractor and trailer must be positioned to drive forward.
•Do NOT drive with an load box raised.
•Ensure that during unloading nobody is near tipped load box.