PRONAR PT512 User manual

PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, WOJ. PODLASKIE, POLAND
Phone.: [phone] [phone]
[phone] [phone]
Fax: [phone] [phone]
www.pronar.pl
OPERATOR'S MANUAL
TRAILER
PRONAR PT512
TRANSLATION OF THE ORIGINAL DOCUMENT
ISSUE 1B-05-2012 PUBLICATION NO. 327N-00000000-UM

INTRODUCTION
Information contained herein is current as of the date of its 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 delivered to the user. The manufacturer
reserves the right to introduce design changes in manufactured machines that facilitate
operation and improve the quality of their work, without making amendments to this Operator's
Manual.
This Operator's Manual is an integral part of the machine. 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 and operation rules of Pronar PT512 trailer.
If the information contained in the Operator's Manual needs clarification, 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, Poland
PHONE NUMBERS
[phone] [phone]
[phone] [phone]

SYMBOLS USED IN THIS MANUAL
Information, descriptions of danger, precautions, recommendations and orders associated with
user safety instructions are indicated as follows:
and 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
indicated with the sign:
and 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 periodical maintenance, the
relevant section of the Operator's Manual is indicated with the sign:
Additional tips contained in this document refer to helpful information on the machine operation
and are indicated as follows:
and preceded by the word "TIP".

DETERMINING THE DIRECTIONS FOR THE MANUAL'S NEEDS
Left side — a left hand side of the person facing the machine's forward travel direction.
Right side — a right hand side of the person facing the machine's forward travel direction.
SCOPE OF OPERATION STEPS
Operation steps are indicated with the following sign: 
The result of an operation/adjustment task or any notes on execution of the tasks performed is
indicated with the sign 

TABLE OF CONTENTS
1 GENERAL INFORMATION 1.1
1.1 IDENTIFICATION 1.2
1.1.1 IDENTIFICATION OF THE TRAILER 1.2
1.1.2 IDENTIFICATION OF THE AXLES 1.3
1.1.3 LIST OF SERIAL NUMBERS 1.4
1.2 APPLICATION 1.4
1.3 EQUIPMENT 1.9
1.4 WARRANTY TERMS 1.10
1.5 TRANSPORT 1.12
1.5.1 TRANSPORT ON A VEHICLE. 1.12
1.5.2 INDEPENDENT TRANSPORT BY THE USER. 1.14
1.6 ENVIRONMENTAL HAZARD 1.14
1.7 WITHDRAWAL FROM USE 1.15
2 SAFETY OF OPERATION 2.1
2.1 GENERAL SAFETY RULES 2.2
2.1.1 USE OF THE TRAILER 2.2
2.1.2 HITCHING AND DISCONNECTING FROM TRACTOR 2.3
2.1.3 COUPLING AND UNCOUPLING THE SECOND TRAILER 2.3
2.1.4 HYDRAULIC AND PNEUMATIC SYSTEMS 2.4
2.1.5 LOADING AND UNLOADING THE TRAILER 2.5
2.1.6 TRANSPORT RUN 2.7
2.1.7 TIRES 2.10
2.1.8 MAINTENANCE 2.11
2.2 RESIDUAL RISK ASSESSMENT 2.13
2.3 INFORMATION AND WARNING DECALS 2.14

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 LOADING CASE 3.5
3.2.3 THE MAIN BRAKE 3.8
3.2.4 HYDRAULIC TIPPING SYSTEM 3.14
3.2.5 SUPPORT HYDRAULIC SYSTEM 3.16
3.2.6 PARKING BRAKE 3.17
3.2.7 LIGHTING SYSTEM 3.18
4 CORRECT USE 4.1
4.1 PREPARING FOR WORK BEFORE THE FIRST USE 4.2
4.1.1 CHECKING THE TRAILER AFTER DELIVERY 4.2
4.1.2 PREPARING A TRAILER FOR FIRST HITCHING 4.2
4.2 HITCHING AND DISCONNECTING FROM TRACTOR 4.4
4.3 COUPLING AND UNCOUPLING THE SECOND TRAILER 4.9
4.4 LOADING AND SECURING THE LOAD 4.10
4.4.1 GENERAL INFORMATION ON THE LOADING 4.11
4.5 TRANSPORTING LOADS 4.19
4.6 UNLOADING 4.20
4.7 PROPER USE AND MAINTENANCE OF TYRES 4.25
4.8 OPERATING THE UNDER RUN PROTECTIVE DEVICE 4.26
5 MAINTENANCE 5.1
5.1 PRELIMINARY INFORMATION 5.2
5.2 SERVICING THE BRAKES AND THE AXLE 5.2
5.2.1 PRELIMINARY INFORMATION 5.2
5.2.2 INITIAL INSPECTION OF AXLE BRAKES 5.3

5.2.3 INSPECTION OF AXLE BEARINGS PLAY 5.4
5.2.4 ADJUSTMENT OF AXLE BEARINGS PLAY 5.6
5.2.5 MOUNTING AND DISMOUNTING THE WHEEL, INSPECTION OF
WHEEL TIGHTENING 5.7
5.2.6 CONTROL OF AIR PRESSURE, EVALUATING TECHNICAL CONDITION
OF TIRES AND STEEL WHEELS 5.9
5.2.7 ADJUSTMENT OF MECHANICAL BRAKES 5.10
5.2.8 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF
CABLE TENSION 5.12
5.3 MAINTENANCE OF PNEUMATIC SYSTEM 5.15
5.3.1 PRELIMINARY INFORMATION 5.15
5.3.2 VISUAL INSPECTION AND CONTROL OF SYSTEM TIGHTNESS 5.15
5.3.3 CLEANING THE AIR FILTERS 5.17
5.3.4 DRAINING WATER FROM THE AIR RESERVOIR 5.18
5.3.5 CLEANING THE DRAIN VALVE 5.19
5.3.6 CLEANING AND MAINTENANCE OF PNEUMATIC SOCKETS AND LINE
CONNECTORS 5.20
5.3.7 INSTALLATION OF SINGLE-LINE PNEUMATIC SYSTEM 5.20
5.3.8 REPLACEMENT OF PNEUMATIC LINE 5.22
5.4 MAINTENANCE OF HYDRAULIC SYSTEM 5.23
5.4.1 PRELIMINARY INFORMATION 5.23
5.4.2 CONTROL OF HYDRAULIC SYSTEM TIGHTNESS 5.24
5.4.3 CHECKING THE TECHNICAL CONDITION OF HYDRAULIC
CONNECTORS AND SOCKETS 5.24
5.4.4 REPLACEMENT OF HYDRAULIC LINES 5.25
5.5 MAINTENANCE OF ELECTRICAL SYSTEM AND WARNING
ELEMENTS 5.25
5.5.1 PRELIMINARY INFORMATION 5.25
5.5.2 REPLACEMENT OF BULBS 5.26
5.6 TRAILER LUBRICATION 5.27
5.7 CONSUMABLES 5.32

5.7.1 HYDRAULIC OIL 5.32
5.7.2 LUBRICANTS 5.33
5.8 CLEANING THE TRAILER 5.33
5.9 STORAGE 5.35
5.10 TORQUE VALUES FOR BOLTED JOINTS 5.35
5.11 INSTALLATION AND DISASSEMBLY OF EXTENSIONS 5.37
5.12 ADJUSTMENT OF DRAWBAR POSITION 5.37
5.13 TROUBLESHOOTING 5.39

CHAPTER
1
GENERAL
INFORMATION

Pronar PT512 CHAPTER 1
1.2
1.1 IDENTIFICATION
1.1.1 IDENTIFICATION OF THE TRAILER
FIGURE 1.1 Location of the rating plate and the serial number
(1) rating plate, (2) serial number
The trailer has been identified by means of a rating plate (1) and a serial number (2) stamped
on a rectangular, gold-painted area. The rating plate is located on the front beam of the upper
frame and the serial number is punched on the front beam of the chassis – see figure (1.1).

CHAPTER 1 Pronar PT512
1.3
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 the OPERATOR'S MANUAL.
The meaning of particular fields of the rating plate is presented in the table below.
TABLE 1.1 Meaning of rating plate's fields
ITEM
MARKING
A General description and purpose
B Symbol/Type of the trailer
C Year of manufacture
D Seventeen digit serial number (VIN)
E Type approval certificate
F Empty weight
G Allowable total weight
H Load capacity
I Permissible hitch load
J Permissible 1st axle load
K Permissible 2nd axle load
1.1.2 IDENTIFICATION OF THE AXLES
The serial number and the type of an axle is stamped on the rating plate (2) attached to the
axle beam (1) – see figure (1.2).

Pronar PT512 CHAPTER 1
1.4
FIGURE 1.2 Location of the axle rating plate
(1) axle, (2) rating plate
1.1.3 LIST OF SERIAL NUMBERS
VIN
S Z B 5 1 2 X
FRONT AXLE SERIAL NUMBER
REAR AXLE SERIAL NUMBER
TIP
In case spare parts must be ordered or in case of problems, it may be required to pro ide
serial numbers of particular components or the trailer's VIN. It is thus ad ised to enter
these numbers in the fields below.
1.2 APPLICATION
This trailer is designed for transporting agricultural commodities (loose, volumetric or long
goods) and goods on europallets or collar pallets both within a farm area and on the public
roads. This trainer can be used to transport construction materials, mineral fertilizers and
other types of materials, provided they meet the requirements stated in the chapter 4. Not

CHAPTER 1 Pronar PT512
1.5
following the manufacturer's recommendations relating to the transport and loading, as well
as the traffic regulations of the country the trailer is used in will render the warranty void and
will be treated as misuse of the machine.
The trailer has been designed according to all applicable safety requirements and standards.
The braking, lighting and signaling systems conform to the requirements of the traffic
regulations. According to the Polish Law on Road Traffic (Prawo o ruchu drogowym) of 20
June 1997, Art. 20, the maximum allowable speed of the trailed on public roads is 30 km/h. In
countries in which the trailer will be used the maximum allowable speed is limited according
to the traffic regulations in force. It must not however exceed the design speed of 40 km/h.
ATTENTION
The trailer must not be used for purposes other than those for which it is intended, in
particular:
•for transporting people, animals, dangerous materials and materials which
can chemically react with trailer's structural elements and cause steel
corrosion, damage the painted surfaces, melt plastics, damage rubber
elements etc.
•for transporting improperly secured materials which could fall on the road
and pollute the natural en ironment,
•for transporting improperly secured materials which could relocate on the
trailer or fall out from the loading case,
•for transporting material the center of gra ity of which ad ersely affects the
trailer's stability,
•for transporting material which exerts an une en load and/or o erloads the
axles and suspension.
The trailer has not been designed and intended for transporting people, animals and any
materials classified as dangerous.
Proper use of the machine includes all activities relating to its proper and safe operation and
maintenance. The user is thus required to:
•become familiar with the contents of the trailer OPERATOR'S MANUAL and the
WARRANTY BOOK and to follow the recommendations of these documents,

Pronar PT512 CHAPTER 1
1.6
•understand the principle of operation of the machine and its safe and proper use,
•follow the maintenance and adjustment intervals,
•follow general safety regulations,
•prevent accidents,
•follow the traffic and transport regulations of the country in which the trailer is
used,
•become familiar with the contents of a tractor operator's manual and follow its
recommendations,
•attach the implement only to a tractor which meets all requirements provided by
the trailer's manufacturer.
The trailer can only be operated by persons which:
•became familiar with the contents of this manual and the documents delivered
with the trailer, as well as the tractor operator's manual,
•have undergone a training in terms of the trailer's operation and safety,
•have all the permits required to drive a vehicle in question and became familiar
with the traffic and transport regulations.
TIP
The requirements on a tractor depend on the equipment of the trailer.
TABLE 1.2 Recommended pallet types
PALLET NAME – TYPE LENGTH
[MM]
WIDTH
[MM]
HEIGHT
[MM]
Europallet – standard 1 200 800 144
Europallet – ½ 800 600 144
Europallet – extended 1 200 1 200 144
TABLE 1.3 Requirements on the tractor

CHAPTER 1 Pronar PT512
1.7
ITEM UNIT REQUIREMENTS
Braking system – sockets
Pneumatic, single-line
Pneumatic, twin-line
Hydraulic
System pressure
Pneumatic, single-line
Pneumatic, twin-line
Hydraulic
-
-
-
bar/kPa
bar/kPa
bar/MPa
acc. to A DIN 74294
acc. to A DIN 74294
acc. to ISO 7421-1
5.8 – 6.5 / 580 - 650
6.5 / 650
150 / 15
Hydraulic tipping system
Hydraulic oil
Maximum system pressure
Oil requirement
-
bar/MPa
l
L HL 32 Lotos
(1)
200 / 20
16
Electrical system
Voltage
Connection
V
-
12
7-pole, acc. to ISO 1724
Tractor hitch
Type of hitch
Minimum vertical load capacity
-
-
kg
Single-axle trailer hitch
Upper transport hitch
1 950
Other requirements
Minimum tractor power kW/KM 61.7 / 84
(1)
– it is allowed to use other oil, provided it can be mixed with the oil in the trailer's system. Detailed
information can be found in the product's data sheet.
When attaching another trailer to this trailer, the second trailer must meet all the
requirements given in the table (1.4).

Pronar PT512 CHAPTER 1
1.8
TABLE 1.4 Requirements on the second trailer
ITEM UNIT REQUIREMENTS
Allowable total weight
Two-axle trailer kg 16 500
Braking system – connectors
Pneumatic, single-line
Pneumatic, twin-line
Hydraulic
System pressure
Pneumatic, single-line
Pneumatic, twin-line
Hydraulic
-
-
-
bar/kPa
bar/kPa
bar/MPa
connector acc. to A DIN 74294
connector acc. to A DIN 74294
connector acc. to ISO 7421-1
5.8 – 6.5 / 580 - 650
6.5 / 650
150 / 15
Hydraulic tipping system
Hydraulic oil
Minimum system pressure
-
bar/MPa
L HL 32 Lotos
(1)
200 / 20
Electrical system
Voltage
Connection
V
-
12
7-pole, acc. to ISO 1724
Trailer drawbar
Drawbar eye diameter
Drawbar type
mm
-
40
swinging (two-axle trailer)
(1)
– it is allowed to use other oil, provided it can be mixed with the oil in the trailer's system. Detailed
information can be found in the product's data sheet.

CHAPTER 1 Pronar PT512
1.9
1.3 EQUIPMENT
TABLE 1.5 Trailer equipment list
EQUIPMENT
STANDARD
ADDITIONAL
OPTIONAL
Operator's Manual •
Warranty Book •
Electrical system cable •
Single- and twin-line pneumatic system •
Twin-line pneumatic system with an automatic regulator •
Hydraulic braking system •
Handbrake •
Fenders •
Fenders, rear + front •
Hydraulic scissor support •
Rotating eye ∅50 mm •
Eye ∅40 mm •
Ball drawbar K80 •
Wheel chokes •
Automatic rear hitch •
Manual rear hitch •
Low speed vehicle warning plate •
Reflective warning triangle •
Set of extensions (800 mm) •

Pronar PT512 CHAPTER 1
1.10
EQUIPMENT
STANDARD
ADDITIONAL
OPTIONAL
Set of extensions (600mm) •
Set of additional middle extensions (600 mm) •
Canvas cover with a frame and a platform •
Wall reinforcements •
Chute •
Under run protective devices •
Side pull-off mechanism •
Some standard equipment elements detailed in table (1.4) may have not be fitted in your
trailer. This arises from the possibility to order a new machine with optional equipment which
is fitted instead of the standard one.
Information on tires are presented at the end of this document – see ANNEX A.
1.4 WARRANTY TERMS
PRONAR Sp. z o.o. Narew guarantees the reliable operation of the machine when it is used
according to technical and operation conditions described in the OPERATOR'S MANUAL.
The repair dates are provided in the WARRANTY BOOK.
The guarantee does not apply to those parts and components of the machine which are
subject to wear in normal usage conditions, regardless of the warranty period. These
parts/components comprise:
•drawbar hitch eye,
•pneumatic system connector filters,
•tires,
•brake shoes,