PRONAR T669 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
AGRICULTURAL TRAILER
PRONAR T669
TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
ISSUE 5B-09-2010 PUBLICATION NO 58N-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 this Operator's Manual.
This Operator's Manual is an integral part of the machine's documentation. Before using the
machine, the user must carefully read this Operator's Manual 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 manual describes the basic safety rules and operation of agricultural trailer Pronar T669.
If the information contained in the Operator's Manual 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]

SYMBOLS APPEARING IN THIS OPERATOR'S MANUAL
Information, descriptions of danger and precautions and also recommendations and prohibitions
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 by the word "ATTENTION". Failure to observe the instructions may lead to
damage to the machine as a result of improper operation, adjustment or use.
In order to focus the user's attention on the need to perform maintenance, the relevant section
of the Operator's Manual is marked with the pictogram:
Additional tips and advice for machine operation are marked:
and also preceded by the word „TIP”.

DIRECTIONS USED IN THIS OPERATOR'S MANUAL
Left side – side to the left hand of the operator facing in the direction of machine's forward
travel.
Right side – side to the right hand of the operator facing in the direction of machine's forward
travel.
REQUIRED SERVICE ACTIONS
Service actions described in the manual are marked: 
Result of service/adjustment actions or comments concerning the performance of actions are
marked: 

CONTENTS
1 BASIC INFORMATION 1.1
1.1 IDENTIFICATION 1.2
1.1.1 TRAILER IDENTIFICATION 1.2
1.1.2 AXLE IDENTIFICATION 1.3
1.1.3 LIST OF FACTORY NUMBERS 1.4
1.2 PROPER USE 1.4
1.3 OPTIONAL EQUIPMENT 1.7
1.4 WARRANTY TERMS 1.8
1.5 TRANSPORT 1.10
1.5.1 TRANSPORT ON VEHICLE. 1.10
1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.12
1.6 ENVIRONMENTAL HAZARDS 1.12
1.7 WITHDRAWAL FROM USE 1.13
2 SAFETY ADVICE 2.1
2.1 BASIC SAFETY RULES 2.2
2.1.1 USE OF TRAILER 2.2
2.1.2 HITCHING AND DISCONNECTING FROM TRACTOR 2.3
2.1.3 COUPLING AND UNCOUPLING SECOND TRAILER 2.3
2.1.4 HYDRAULIC AND PNEUMATIC SYSTEMS 2.4
2.1.5 LOADING AND UNLOADING 2.5
2.1.6 TRANSPORTING THE MACHINE 2.6
2.1.7 TYRES 2.9
2.1.8 MAINTENANCE 2.10
2.2 DESCRIPTION OF MINIMAL RISK 2.12
2.3 INFORMATION AND WARNING DECALS 2.13

3 DESIGN AND OPERATION 3.1
3.1 TECHNICAL SPECIFICATION 3.2
3.2 TRAILER CONSTRUCTION 3.3
3.2.1 CHASSIS 3.3
3.2.2 LOAD BOX 3.5
3.2.3 MAIN BRAKE 3.7
3.2.4 HYDRAULIC TIPPER SYSTEM 3.12
3.2.5 SHEAR TYPE DRAWBAR SUPPORT HYDRAULIC SYSTEM 3.14
3.2.6 TAILGATE HYDRAULIC SYSTEM 3.15
3.2.7 TURNING INTERLOCK HYDRAULIC SYSTEM 3.16
3.2.8 PARKING BRAKE 3.17
3.2.9 LIGHTING SYSTEM 3.18
4 CORRECT USE 4.1
4.1 PREPARING FOR WORK BEFORE FIRST USE 4.2
4.1.1 CHECKING THE TRAILER AFTER DELIVERY 4.2
4.1.2 PREPARE A TRAILER FOR FIRST HITCHING TO TRACTOR 4.3
4.2 HITCHING AND DISCONNECTING FROM TRACTOR 4.4
4.3 COUPLING AND UNCOUPLING SECOND TRAILER 4.8
4.4 LOADING AND SECURING LOAD 4.11
4.4.1 GENERAL INFORMATION CONCERNING LOAD 4.11
4.5 TRANSPORTING LOADS 4.18
4.6 UNLOADING 4.20
4.7 PROPER USE AND MAINTENANCE OF TYRES 4.22
5 MAINTENANCE 5.1
5.1 PRELIMINARY INFORMATION 5.2
5.2 SERVICING BRAKES AND AXLES 5.2
5.2.1 PRELIMINARY INFORMATION 5.2

5.2.2 INITIAL INSPECTION OF AXLE BRAKES 5.3
5.2.3 CHECK BRAKE SHOE LININGS FOR WEAR 5.3
5.2.4 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS 5.5
5.2.5 ADJUSTMENT OF WHEEL AXLE BEARINGS LOOSENESS 5.7
5.2.6 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF
WHEEL NUT TIGHTENING 5.8
5.2.7 CHECK AIR PRESSURE, EVALUATE TECHNICAL CONDITION
OF WHEELS AND TYRES, 5.10
5.2.8 ADJUSTMENT OF MECHANICAL BRAKES 5.11
5.2.9 CHANGE OF PARKING BRAKE CABLE AND ADJUSTMENT OF
CABLE TENSION. 5.13
5.3 PNEUMATIC SYSTEM OPERATION 5.16
5.3.1 PRELIMINARY INFORMATION 5.16
5.3.2 INSPECTING AND CHECKING AIR TIGHTNESS OF
PNEUMATIC SYSTEM. 5.16
5.3.3 CLEANING THE AIR FILTERS 5.18
5.3.4 DRAINING WATER FROM AIR TANK 5.19
5.3.5 CLEANING DRAIN VALVE 5.20
5.3.6 CLEANING AND MAINTAINING PNEUMATIC CONDUIT
CONNECTIONS AND PNEUMATIC SOCKETS 5.21
5.3.7 REPLACEMENT OF THE PNEUMATIC CONDUIT. 5.21
5.4 HYDRAULIC SYSTEM OPERATION 5.23
5.4.1 PRELIMINARY INFORMATION 5.23
5.4.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS 5.23
5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC
CONNECTIONS AND SOCKETS. 5.24
5.4.4 CHANGE OF HYDRAULIC CONDUITS 5.24
5.5 OPERATION OF ELECTRICAL SYSTEM AND WARNING
ELEMENTS 5.25
5.5.1 PRELIMINARY INFORMATION 5.25
5.5.2 CHANGE BULBS 5.26

5.6 TRAILER LUBRICATION 5.27
5.7 CONSUMABLES 5.31
5.7.1 HYDRAULIC OIL 5.31
5.7.2 LUBRICANTS 5.32
5.8 CLEANING TRAILER 5.33
5.9 STORAGE 5.35
5.10 TIGHTENING TORQUE FOR NUT AND BOLT
CONNECTIONS 5.35
5.11 INSTALLATION AND DISASSEMBLY OF EXTENSION
WALLS 5.37
5.12 INSTALLATION AND DISASSEMBLY OF THE FRAME AND
TARPAULIN COVER 5.39
5.13 ADJUSTMENT OF DRAWBAR POSITION 5.41
5.14 TROUBLESHOOTING 5.42

SECTION
1
BASIC INFORMATION

Pronar T669 SECTION 1
1.2
1.1 IDENTIFICATION
1.1.1 TRAILER IDENTIFICATION
FIG. 1.1 Location of the data plate and serial number
(1) data plate, (2) serial number
The trailer is marked with the data plate (1), and the factory number (2) located on a gold
painted rectangle. The serial number and data plate are located on the front beam of the
trailer lower chassis frame longitudinal member (1.1).
When buying the trailer check that the serial numbers on the machine agree with the number
written in the WARRANTY BOOK, in the sales documents and in the OPERATOR'S
MANUAL. The meanings of the individual fields found on the data plate are presented in the
table below:

SECTION 1 Pronar T669
1.3
TAB. 1.1 Markings on data plate
ITEM MARKING
A General description and purpose
B Symbol /Type
C Year of manufacture
D Seventeen digit vehicle identification number (VIN)
E Official certificate number
F Tare weight
G Maximum gross weight
H Carrying capacity
I Permissible hitching system loading
J Permissible front axle load
K Permissible rear axle load
1.1.2 AXLE IDENTIFICATION
FIG. 1.2 Location of the axle data plate
(1) wheel axle, (2) data plate

Pronar T669 SECTION 1
1.4
The factory number of the axle shaft and its type are stamped onto the data plate (2) secured
to the axle shaft beam (1) – figure (1.2).
1.1.3 LIST OF FACTORY NUMBERS
TIP
In the event of ordering a replacement part or in the case of the appearance of problems
it is often essential to give the factory n mbers of parts or the VIN n mber of the trailer,
therefore it is recommended that these n mbers are inscribed in the spaces below.
VIN
S Z B 6 6 90XXX
FRONT AXLE FACTORY NUMBER AND TYPE
REAR AXLE FACTORY NUMBER AND TYPE
1.2 PROPER USE
The trailer is designed for transport of harvested crops and agricultural products as well as
loose, bulk and long load materials at the farm and on public roads. It is acceptable to
transport construction materials, mineral fertilisers and other loads, if fulfilling conditions
indicated in section 4. Non-compliance with the recommendations of the carriage and loading
of goods described by the Manufacturer and the road transport regulations in force in the
country in which the trailer is used, shall void the guarantee and is regarded as use of the
machine not according to its intended purpose.
The trailer is not intended or designed for transporting people, animals or goods classified as
dangerous materials.
The trailer is constructed according to current safety requirements and engineering
standards. The brake 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, article 20). In the countries where

SECTION 1 Pronar T669
1.5
the trailer is used, the limits stipulated by the road traffic legislation in force in a given country
must be observed. The trailer speed must not, however, be greater than the maximum design
speed of 40 km/h.
IMPORTANT!
The trailer m st not be sed for p rposes other than those for which it is intended. The
ser MUST NOT:
•transport people, animals, hazardo s materials, chemically aggressive loads
that will corrode the constr ction elements of the trailer (ca sing corrosion of
steel, destr ction of paint coat, dissolving plastic elements and destr ction of
r bber elements etc.),
•transport incorrectly sec red load, which d ring travel may ca se
contamination of the road and nat ral environment,
•transport incorrectly sec red load, which d ring travel may change position
in load box,
•transport loads, whose centre of gravity may destabilise the trailer,
•transport loads, which have neven load distrib tion and/or overload axles
and s spension elements.
Using it as intended also involves all actions connected with the safe and proper operation
and maintenance of the machine. In connection with this the user is obliged to:
•carefully read the OPERATOR'S MANUAL of the trailer and the WARRANTY
BOOK and conform with the recommendations contained in these documents,
•understand the trailer's operating principle and how to operate it safely and
correctly,
•adhere to the established maintenance and adjustment plans,
•comply with general safety regulations while working,
•prevent accidents,
•comply with the road traffic regulations and transport regulations in force in a
given country, in which the trailer is used,
•carefully read the Operator's Manual and comply with its recommendations,

Pronar T669 SECTION 1
1.6
•only hitch the trailer to an agricultural tractor, which fulfils all the requirements
made by the trailer's Manufacturer.
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 safe operation,
•have the required authorisation to drive and are familiar with the road traffic
regulations and transport regulations.
TAB. 1.2 Agricultural tractor's requirements
CONTENTS UNIT REQUIREMENTS
Brake system - sockets
Pneumatic system 1 conduit
Pneumatic system 2 conduit
Hydraulic system
Maximum system pressure
Pneumatic system 1 conduit
Pneumatic system 2 conduit
Hydraulic system
-
-
-
bar / kPa
bar / kPa
bar / MPa
according to ISO 1728
according to ISO 1728
according to ISO 7421-1
5.8 / 580
8 / 800
150 / 15
Hydraulic tipper system
Hydraulic oil
Maximum system pressure
Oil demand:
-
bar / MPa
l
L HL 32 Lotos
(1)
200 / 20
29
Electrical system
Electrical system voltage
Attachment socket
V
-
12
7 polar compliant with ISO 1724
Required tractor hitch
Type - transport hitch
Other requirements
Minimum tractor power
Minimum vertical load capacity of hitch
kW /
Horsepower
kg
76.4 / 104
2,000

SECTION 1 Pronar T669
1.7
(1)
– use of other oil is permitted, on condition that it may be mixed with the oil in the trailer. Detailed
information may be found on the product information card.
In the event that the trailer shall be hitched to a second trailer it must fulfil the requirements
stipulated in table (1.3).
TAB. 1.3 Requirements for second trailer
CONTENTS UNIT REQUIREMENTS
Maximum gross weight kg 20,000
Brake system - connectors
Pneumatic system 1 conduit
Pneumatic system 2 conduit
Hydraulic system
Maximum system pressure
Pneumatic system 1 conduit
Pneumatic system 2 conduit
Hydraulic system
-
-
-
bar / kPa
bar / kPa
bar / MPa
connector compliant with ISO 1728
connector compliant with ISO 1728
connector compliant with ISO 7421-1
5.8 / 580
8 / 800
150 / 15
Hydraulic tipper system
Hydraulic oil
Maximum system pressure
-
bar / MPa
L HL 32 Lotos
(1)
200 / 20
Electrical system
Electrical system voltage
Attachment socket
V
-
12
7 polar compliant with ISO 1724
Draw bar of trailer
Diameter of drawbar shaft mm 40
(1)
– use of other oil is permitted, on condition that it may be mixed with the oil in the trailer. Detailed
information may be found on the product information card.
1.3 OPTIONAL EQUIPMENT
Some standard equipment elements, which were listed in table (1.4), may not be present in
the delivered trailer. This allows the possibility of ordering new machines with a different set
of optional equipment, replacing standard equipment.

Pronar T669 SECTION 1
1.8
Information concerning tyres is provided at the end of this publication in ANNEX A.
TAB. 1.4 Trailer optional equipment
EQUIPMENT
STANDARD
ADDITIONAL
Operator's Manual •
Warranty Book •
Single conduit pneumatic system without rear connector •
Frame with tarpaulin cover •
Fenced platform •
Automatic hitch •
Rear hitch, •
Complete set of wall extensions (580) •
Hand brake •
Wheel chocks •
Drawbar with rotating drawbar eye ∅50 mm •
Chute •
Slow-moving vehicle warning sign •
Warning reflective triangle •
1.4 WARRANTY TERMS
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.

SECTION 1 Pronar T669
1.9
The guarantee does not apply to those parts and sub-assemblies of the machine, which are
subject to wear in normal usage conditions, regardless of the warranty period. Consumables
include the following parts/sub-assemblies:
•drawbar hitching eye,
•pneumatic system connector filters,
•tyres,
•brake shoes,
•bulbs and LED lamps,
•seals,
•bearings.
The warranty service only applies to such cases as: mechanical damage, which is not the
user's fault, factory defects of parts, etc.
In the event of damage arising from:
•mechanical damage which is the user's fault, caused by road accidents,
•by inappropriate use, adjustment or maintenance, use of the trailer for purposes
other than those for which it is intended,
•use of damaged machine,
•repairs carried out by unauthorised persons, improperly carried out repairs,
•making unauthorised alterations to machine design,
the user will lose the right to warranty service.
TIP
Demand that the seller caref lly and precisely fills o t the Warranty Book and g arantee
repair co pons. A missing date of p rchase or sale point stamp, may make the ser
ineligible for any warranty repair or ref nd.
The user is obliged to report immediately on noticing any wear in the paint coating or traces
of corrosion, and to have the faults rectified whether they are covered by the guarantee or

Pronar T669 SECTION 1
1.10
not. Detailed guarantee regulations are contained in the WARRANTY BOOK attached to
each machine.
Modification of the trailer without the written consent of the Manufacturer is forbidden. In
particular, do NOT weld, drill holes in, cut or heat the main structural elements of the
machine, which have a direct impact on the machine operation safety.
1.5 TRANSPORT
The trailer is ready for sale completely assembled and does not require packing. Packing is
only required for the machine's technical documentation and any extra fittings. The trailer is
delivered to the user either transported on a vehicle or, after being attached to a tractor,
independently (trailer towed with a tractor).
1.5.1 TRANSPORT ON VEHICLE.
Loading and unloading of trailer from vehicle shall be conducted using loading ramp with the
aid of an agricultural tractor. During work adhere to the general principles of Health and
Safety at Work applicable to reloading work. Persons operating reloading equipment must
have the qualifications required to operate these machines. The trailer must be properly
connected with the tractor according to the requirements closed in this Operators Manual.
The trailer brake system must be started in checked before driving off or onto ramp.
The trailer should be attached firmly to the platform of the vehicle using straps or chains fitted
with a tightening mechanism. Securing elements should be hitched to the transport lugs
designated for that purpose (1) - Figure (1.3), or other permanent trailer structural elements
(longitudinal members, cross-bars, etc.). Transport lugs are welded to the load box elements
(3), one pair on each side of the trailer and marked with decals (8) - see Table (2.1). Use
certified and technically reliable securing measures. Worn straps, cracked securing catches,
bent or corroded as well as other damage may disqualify use of the given element from use.
Carefully read the information contained in the Operator's Manual for the given securing
measure. Chocks, wooden blocks or other objects without sharp edges should be placed
under the wheels of the trailer to prevent it from rolling. Trailer wheel blocks must be nailed to
the low platform planks of the vehicle or secured in another manner preventing their
movement. The number of securing elements (cables, straps, chains and stay etc.) and the
force necessary for their tensioning depends on a number of things, including weight of the