PRONAR T679/3 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 T679/3
PRONAR T679/4
TRANSLATION OF THE ORIGINAL DOCUMENT
ISSUE 2A-06-2016 PUBLICATION NO. 537N-00000000-UM
EN

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 T679/3, T679/4 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 BASIC INFORMATION 1.1
1.1 IDENTIFICATION 1.2
1.1.1 TRAILER IDENTIFICATION 1.2
1.1.2 HALF AXLE IDENTIFICATION 1.3
1.1.3 LIST OF SERIAL NUMBERS 1.4
1.2 INTENDED USE 1.4
1.3 EQUIPMENT 1.8
1.4 TERMS OF WARRANTY 1.10
1.5 TRANSPORT 1.11
1.5.1 TRANSPORT ON VEHICLE 1.11
1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.13
1.6 ENVIRONMENTAL HAZARDS 1.14
1.7 WITHDRAWAL FROM USE 1.15
2 SAFETY ADVICE 2.1
2.1 SAFETY INFORMATION 2.2
2.1.1 BASIC SAFETY RULES 2.2
2.1.2 DRIVING ON PUBLIC ROADS 2.6
2.1.3 DESCRIPTION OF RESIDUAL RISK 2.7
2.2 INFORMATION AND WARNING DECALS 2.8
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 3.6

3.2.4 HYDRAULIC TIPPING SYSTEM 3.7
3.2.5 TAILGATE HYDRAULIC SYSTEM 3.9
3.2.6 PARKING BRAKE 3.10
3.2.7 ELECTRIC LIGHTING SYSTEM 3.11
4 CORRECT USE 4.1
4.1 PREPARING THE TRAILER FOR WORK 4.2
4.1.1 PRELIMINARY INFORMATION 4.2
4.1.2 HAND-OVER AND INSPECTION OF THE MACHINE AFTER DELIVERY 4.2
4.1.3 PREPARING THE TRAILER FOR THE FIRST USE, TEST RUN OF THE
TRAILER 4.3
4.1.4 PREPARING THE TRAILER FOR NORMAL USE 4.4
4.2 HITCHING AND UNHITCHING THE TRAILER 4.5
4.2.1 HITCHING AND UNHITCHING THE SECOND TRAILER 4.7
4.3 LOADING AND SECURING LOAD 4.9
4.3.1 GENERAL INFORMATION ABOUT LOADING 4.9
4.3.2 SECURING LOAD 4.10
4.4 TRANSPORTING LOADS 4.13
4.5 UNLOADING 4.15
4.6 PROPER USE AND MAINTENANCE OF TYRES 4.18
5 MAINTENANCE 5.1
5.1 PRELIMINARY INFORMATION 5.2
5.2 MAINTENANCE OF WHEEL AXLE 5.2
5.2.1 PRELIMINARY INFORMATION 5.2
5.2.2 CHECKING SLACKNESS OF WHEEL AXLE BEARINGS 5.3
5.2.3 ADJUSTMENT OF SLACKNESS OF WHEEL AXLE BEARINGS 5.5
5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL
NUT TIGHTENING. 5.6

5.2.5 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL
CONDITION OF TYRES AND STEEL WHEELS 5.8
5.2.6 CHECKING THICKNESS OF BRAKE SHOE LININGS 5.9
5.2.7 MECHANICAL BRAKES ADJUSTMENT 5.10
5.2.8 CHANGE OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE
TENSION. 5.16
5.3 PNEUMATIC SYSTEM MAINTENANCE 5.19
5.3.1 PRELIMINARY INFORMATION 5.19
5.3.2 CHECKING TIGHTNESS 5.19
5.3.3 INSPECTION OF THE SYSTEM 5.20
5.4 CLEANING THE AIR FILTERS 5.21
5.4.1 DRAINING WATER FROM AIR TANK 5.22
5.4.2 CLEANING DRAIN VALVE 5.22
5.4.3 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS
AND PNEUMATIC SOCKETS 5.23
5.5 HYDRAULIC SYSTEM MAINTENANCE 5.24
5.5.1 PRELIMINARY INFORMATION 5.24
5.5.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS 5.24
5.5.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC CONNECTIONS
AND SOCKETS. 5.25
5.5.4 REPLACEMENT OF HYDRAULIC CONDUITS 5.25
5.6 LUBRICATION 5.26
5.6.1 CONSUMABLES 5.29
5.7 TRAILER CLEANING 5.31
5.8 STORAGE 5.32
5.9 INSPECTION OF TIGHTENING TORQUE OF NUT AND BOLT
CONNECTIONS 5.33
5.9.1 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.33
5.10 ADJUSTMENT OF DRAWBAR POSITION 5.34
5.11 ADJUSTMENT OF TAILGATE POSITION 5.36

5.12 TROUBLESHOOTING 5.37
5.12.1 TROUBLESHOOTING 5.37

SECTION
1
BASIC
INFORMATION

PRONAR T679/3 PRONAR T679/4 SECTION 1
1.2
1.1 IDENTIFICATION
1.1.1 TRAILER IDENTIFICATION
FIGURE 1.1 Location of the data plate and vehicle identification number (VIN)
(1) data plate, (2) example of VIN number for T679/3, (3) example of VIN number for T679/4
Pronar T679/3 and Pronar T679/4 agricultural trailers are marked with the data plate (1),
vehicle identification number (VIN) (2) for T679/3 trailer and vehicle identification number
(VIN) (3) for T679/4 trailer. The serial number and data plate are located on the right side of
the frame front beam – figure (1.1). When buying the agricultural trailer check that the serial
numbers on the machine agree with the number written in the WARRANTY BOOK and in the

SECTION 1 PRONAR T679/3 PRONAR T679/4
1.3
sales documents. The meanings of the individual fields found on the data plate are presented
in the table below:
TABLE 1.1 Markings on data plate
ITEM
MARK
A General description and purpose
B Symbol /Machine type
C Year of manufacture
D Seventeen digit vehicle identification number (VIN)
E Official certificate number
F Machine 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 HALF AXLE IDENTIFICATION
The serial number of the half axle and its type are stamped onto data plate (3) secured to half
axle shield (2). Two half axles connected permanently with a beam form suspension system
rocker (1) – figure (1.2).
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 serial number of the trailer or the serial
number of the half axle, therefore it is recommended that these numbers are
inscribed in the table (1.2).

PRONAR T679/3 PRONAR T679/4 SECTION 1
1.4
FIGURE 1.2 Location of the half axle data plate
(1) left rocker (2) half axle (3) data plate
1.1.3LIST OF SERIAL NUMBERS
TABLE 1.2 List of serial numbers
VIN
S Z B 6 7 9 X X
HALF AXLE SERIAL NUMBER
1.2 INTENDED USE
The trailer is designed for transporting and unloading heavy materials such as: debris,
stones, rubble, gravel, used during construction, the earthworks, demolition, on the farm and

SECTION 1 PRONAR T679/3 PRONAR T679/4
1.5
on public roads. Load box design enables loading and transport of machinery and
construction vehicles as well as transport of goods on EUR-pallets.
TABLE 1.3 Recommended types of pallets
PALLET NAME - TYPE LENGTH
[MM]
WIDTH
[MM]
HEIGHT
[MM]
EUR-pallet – standard 1,200 800 144
EUR-pallet – 1/2 800 600 144
EUR-pallet – extended 1,200 1,200 144
ISO 1,200 1,000 144
The above-mentioned loads may be transported provided that the recommendations included
in this manual, especially the recommendations concerning protection of loads included in
Section (4.3.2), are adhered to. The trailer is suitable for driving on public roads.
The trailer may only be hitched to the agricultural tractors which fulfil all the requirements
specified in table (1.4).
DANGER
The trailer must not be used for purposes other than those for which it is
intended, in particular:
•for transporting people and animals,
•for transporting hazardous loads or loads which are not properly
secured against shifting or falling out,
•for transporting loads which are unevenly distributed and/or which
overload half axles and suspension elements; do NOT overload the
trailer in excess of its load carrying capacity,
•for transporting any materials other than those stipulated in the
manual.
The brake system and the lighting and indicator system meet the requirements of road traffic
regulations. Do NOT exceed the permissible speed of the tractor-trailer combination (the
permissible speed in force in the country in which the trailer is used). The trailer speed must
not, however, be greater than the maximum design speed of 40 km/h.

PRONAR T679/3 PRONAR T679/4 SECTION 1
1.6
Using it as intended also involves all actions connected with the safe and proper operation
and maintenance of the machine. Due to the above, the user is obliged to:
•carefully read the OPERATOR'S MANUAL and WARRANTY BOOK and conform
with the recommendations contained in these documents,
•understand the machine'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 machine is used,
•carefully read the Operator's Manual and comply with its recommendations,
•only hitch the trailer to an agricultural tractor, which fulfils all the requirements
made by the trailer's Manufacturer.
TABLE 1.4 Agricultural tractor's requirements
CONTENTS UNIT REQUIREMENTS
Brake system connection sockets
Single conduit pneumatic system
Double conduit pneumatic system
Hydraulic system
Pressure rating of the system
Single conduit pneumatic system
Double conduit pneumatic system
Hydraulic system
-
-
-
bar
bar
bar
according to A DIN 74 294
according to ISO 1728
according to ISO 7421-1
5.8 – 6.5
6.5
150
Hydraulic system
Hydraulic oil
Maximum system pressure
Oil demand:
-
bar
l
L HL 32 Lotos
(1)
200
17

SECTION 1 PRONAR T679/3 PRONAR T679/4
1.7
CONTENTS UNIT REQUIREMENTS
Electrical system
Electrical system voltage
Connection socket
V
-
12
7-pole compliant with ISO 1724
Tractor hitches
Type of hitch - upper or lower transport hitch
Other requirements 679/3 679/4
Minimum tractor power
Minimum vertical load capacity of hitch hp / /kW kg 69.4 / 51
1,800 62.6 / 46 1,500
(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.
The machine 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.
In the event that the trailer shall be hitched to a second trailer it must fulfil the requirements
stipulated in table (1.4).
TABLE 1.5 Requirements for second trailer
CONTENTS UNIT REQUIREMENTS
T679/3 T679/4
Maximum gross weight kg 13,000 11,000

PRONAR T679/3 PRONAR T679/4 SECTION 1
1.8
CONTENTS UNIT REQUIREMENTS
Brake system - connectors
Single conduit pneumatic system
Double conduit pneumatic system
Hydraulic system
Maximum system pressure
Single conduit pneumatic system
Double conduit pneumatic system
Hydraulic system
-
-
-
bar
bar
bar
according to A DIN 74 294
according to ISO 1728
according to ISO 7421-1
5.8 – 6.5
6.5
150
Hydraulic tipper system
Hydraulic oil
Maximum system pressure
-
bar
L HL 32 Lotos
(1)
200 / 20
Electrical system
Electrical system voltage
Connection socket
V
-
12
7-pole compliant with ISO 1724
Drawbar of trailer
Diameter of drawbar eye 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 EQUIPMENT
TABLE 1.6 Equipment
EQUIPMENT
STANDARD
ADDITIONAL
OPTION
OPERATOR'S MANUAL, WARRANTY BOOK •
Adjustable drawbar •
Rotating drawbar eye ∅50 •

SECTION 1 PRONAR T679/3 PRONAR T679/4
1.9
EQUIPMENT
STANDARD
ADDITIONAL
OPTION
Fixed drawbar eye ∅40 •
Ball drawbar K80 •
Load box made of wear resistant steel plates •
Rear hitch •
Double line pneumatic braking system •
Hydraulic brake system •
Hydraulic tipper system •
Hydraulic hinged tailgate •
Hinged-opening tailgate •
Parking brake •
Lighting system LED 12V •
Lights support beams with rear lamp shields •
Slow-moving vehicle warning sign •
Load box service support •
800mm load box extensions •
Mechanical telescopic drawbar support •
Load box ladder •
Front canopy of load box •
Warning reflective triangle •
Wheel chocks •

PRONAR T679/3 PRONAR T679/4 SECTION 1
1.10
TIP
Information concerning tyres is provided at the end of this manual in ANNEX A.
1.4 TERMS OF WARRANTY
TIP
Demand that the seller carefully and precisely fills out the WARRANTY BOOK
and warranty repair coupons. A missing date of purchase or sale point stamp,
may make the user ineligible for any warranty repair or refund.
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 warranty does not cover 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,
•seals,
•bearings,
•LED lamps,
•brake shoes.
The warranty service only applies to factory defects and mechanical damage that is not due
to the user's fault.
In the event of damage arising from:
•mechanical damage which is the user's fault, road accidents,