PRONAR T285/1 User manual

PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
phone: [phone] [phone]
[phone] [phone]
fax: [phone] [phone]
www.pronar.pl
OPERATOR'S MANUAL
AGRICULTURAL TRAILER
PRONAR T285/1
TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
EDITION 2A-10-2014 PUBLICATION NO 385N-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 T285/1.
If the information stated 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: 

TABLE OF CONTENTS
1BASIC 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 1.3
1.2 PROPER USE 1.4
1.3 EQUIPMENT 1.8
1.4 TERMS & CONDITIONS OF WARRANTY 1.9
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 1.13
1.7 WITHDRAWAL FROM USE 1.15
2SAFETY 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 PULLING THE LOAD BOX ON AND REMOVING THE LOAD BOX FROM
THE TRAILER 2.3
2.1.4 HYDRAULIC AND PNEUMATIC SYSTEMS 2.4
2.1.5 LOADING AND UNLOADING LOAD BOX 2.5
2.1.6 TRANSPORTING THE MACHINE 2.6
2.1.7 TYRES 2.9
2.1.8 MAINTENANCE 2.9
2.2 DESCRIPTION OF MINIMAL RISK 2.11
2.3 INFORMATION AND WARNING DECALS 2.12

3DESIGN AND OPERATING PRINCIPLE 3.1
3.1 TECHNICAL SPECIFICATION 3.2
3.2 TRAILER CONSTRUCTION 3.3
3.2.1 CHASSIS 3.3
3.2.2 TIPPING FRAME 3.5
3.2.3 MAIN BRAKE 3.7
3.2.4 PARKING BRAKE 3.11
3.2.5 HYDRAULIC SYSTEM 3.12
3.2.6 TURNING INTERLOCK HYDRAULIC SYSTEM 3.14
3.2.7 SUPPORT HYDRAULIC SYSTEM 3.15
3.2.8 ELECTRICAL SYSTEM 3.16
4CORRECT 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 THE TRAILER FOR FIRST HITCHING TO TRACTOR 4.3
4.2 HITCHING AND DISCONNECTING FROM TRACTOR 4.5
4.3 COUPLING AND UNCOUPLING SECOND TRAILER 4.9
4.4 PULLING THE LOAD BOX ON THE TRAILER 4.11
4.5 REMOVING LOAD BOX FROM TRAILER 4.15
4.6 LOADING THE LOAD BOX 4.16
4.7 TRANSPORTING LOADS 4.21
4.8 UNLOADING 4.22
4.9 PROPER USE AND MAINTENANCE OF TYRES 4.24
4.10 USING UNDER-RUN PROTECTIVE DEVICES 4.25

5MAINTENANCE 5.1
5.1 PRELIMINARY INFORMATION 5.2
5.2 SERVICING WHEEL AXLE 5.2
5.2.1 PRELIMINARY INFORMATION 5.2
5.2.2 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS 5.3
5.2.3 ADJUSTMENT OF WHEEL AXLE BEARINGS LOOSENESS 5.4
5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL
NUT TIGHTENING. 5.6
5.2.5 CHECK AIR PRESSURE, EVALUATE TECHNICAL CONDITION OF
WHEELS AND TYRES 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. 5.14
5.3 PNEUMATIC SYSTEM MAINTENANCE 5.17
5.3.1 PRELIMINARY INFORMATION 5.17
5.3.2 INSPECTING AND CHECKING AIR TIGHTNESS OF PNEUMATIC
SYSTEM. 5.18
5.3.3 CLEANING THE AIR FILTERS 5.19
5.3.4 DRAINING WATER FROM AIR TANK 5.21
5.3.5 CLEANING DRAIN VALVE 5.22
5.3.6 CLEANING AND MAINTAINING PNEUMATIC LINE CONNECTIONS AND
PNEUMATIC SOCKETS 5.22
5.4 HYDRAULIC SYSTEM OPERATION 5.24
5.4.1 PRELIMINARY INFORMATION 5.24
5.4.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS 5.24
5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC CONNECTIONS
AND SOCKETS. 5.25
5.4.4 CHANGE OF HYDRAULIC LINES 5.25

5.5 OPERATION OF ELECTRICAL SYSTEM AND WARNING
ELEMENTS 5.26
5.5.1 PRELIMINARY INFORMATION 5.26
5.5.2 CHANGING BULBS 5.27
5.6 HOOK SETTING ADJUSTMENT 5.28
5.7 ADJUSTING LIMIT VALVES AND LIMIT SWITCHES 5.28
5.8 TRAILER LUBRICATION 5.31
5.9 CONSUMABLES 5.36
5.9.1 HYDRAULIC OIL 5.36
5.9.2 LUBRICANTS 5.37
5.10 CLEANING TRAILER 5.37
5.11 STORAGE 5.39
5.12 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.39
5.13 DRAWBAR EYE ADJUSTMENT 5.41
5.14 TROUBLESHOOTING 5.42

SECTION
1
BASIC
INFORMATION

Pronar T285/1 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
PRONAR T285/1 agricultural trailer is marked with the data plate (1) located on the
reinforcement of the right longitudinal member of the lower frame and with serial number (2).
The serial number is stamped into the data plate and into the reinforcement of the right
longitudinal member of the lower frame – figure (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 T285/1
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 axle 1 load
K Permissible axle 2 load
1.1.2 AXLE IDENTIFICATION
The factory number of the axle and its type are stamped onto the data plate secured to the
axle profile.
1.1.3 LIST OF FACTORY NUMBERS
VIN
S Z B 2 8 5 1 X
FRONT AXLE FACTORY NUMBER
REAR AXLE FACTORY NUMBER

Pronar T285/1 SECTION 1
1.4
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.
1.2 PROPER USE
The hook trailer is designated for use with various types of load boxes (agricultural, building,
communal, special and transport platforms etc.), fulfilling the requirements described in table
(1.2), at the maximum design speed of 40 km/h. Trailer design enables connection and
disconnection of load boxes and their unloading by tipping to the rear. Type of load carried
depends on load box use. The trailer must not be used in any way other than that described
above.
DANGER
The trailer m st not be sed for p rposes other than those for which it is intended, in
partic lar:
•for transporting people and animals,
•for transporting loose nsec red toxic materials, if there is a possibility of ca sing
environmental damage,
•for transporting machines and eq ipment, with high centre of gravity affecting
trailer stability,
•for transporting loads with neven loading and overloading of axles,
•for transporting nsec red loads, which may move in the load box.
•with load boxes not complying with the Man fact rer's req irements.
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 in Poland is 30
km/h (pursuant to Traffic Law Act of June 20th 1997, article 20). In the countries where 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.

SECTION 1 Pronar T285/1
1.5
The trailer is not intended or designed for transporting people or animals.
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,
•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.

Pronar T285/1 SECTION 1
1.6
TAB. 1.2 Load box requirements
DATA UNIT VALUE
Minimum length[mm] 5,400
Maximum length[mm] 6,400
Maximum width [mm] 2,550
Maximum height (with rollers) [mm] 2,500
Maximum gross weight [kg] 16,360
 the length from hook axis to trailer rear edge
The hook trailer is designed for work with load boxes made according to DIN 30722-1
standard. The trailer may be used with load boxes of total length not less than 5 650 mm and
not greater than 6 150 mm. Width and height of load box may not exceed dimensions given
in table (1.2). The trailer is also designed for work with load boxes made by Pronar, the
technical parameters of which are detailed in table (1.3).
TAB. 1.3 Technical data of Pronar K04 load box
DATA UNIT VALUE
Maximum gross weight kg 16,000
Carrying capacity kg 13,500
Tare weight kg 2,500
Lengthmm 6,150
Maximum height (with rollers) mm 2,235
Load space length mm 5,750
Width of load space mm 2,300
Height of load space mm 2,000
Dimensions (length/width/height) mm 6,198 / 2,512 / 2,341
Height of hook mounting mm 1,570
 the length from hook axis to trailer rear edge

SECTION 1 Pronar T285/1
1.7
Requirements concerning trailer operation with agricultural tractor are presented in the table
below.
TAB. 1.4 Agricultural tractor's requirements
CONTENTS UNIT REQUIREMENTS
Brake system
Pneumatic system 2 - line
Nominal pressure of the pneumatic system
Hydraulic brake system
Nominal pressure of the hydraulic system
-
bar / kPa
-
bar / MPa
sockets compliant with PN-ISO 1728
6.5 / 650
socket compliant with ISO 7241-1
160 / 16
Hydraulic system
Hydraulic oil
Pressure rating of the system
Oil demand:
Sockets
-
bar / MPa
L
-
HL 32
200 / 20
25
according to ISO 7241-1
Electrical system
Electrical system voltage
Connection socket
Connection socket
V
-
-
12
7 polar compliant with ISO 1724
3 polar
Tractor hitches
Minimum vertical load capacity of hitch kN / kg 29.43 / 3,000
Other requirements
Minimum power demand kW /HP 92 / 125
Axle system (axles, wheels and tyres), meet the requirements of agricultural trailers. These
requirements can be fulfilled only if the trailer is operated in a proper manner and the
principles of operation specified in this operator's manual are adhered to.

Pronar T285/1 SECTION 1
1.8
1.3 EQUIPMENT
TAB. 1.5 Hook trailer equipment
EQUIPMENT
STANDARD
ADDITIONAL
OPTIONS
Operator's Manual •
Warranty Book •
Connection lead for the electrical system •
Double line pneumatic system without rear connector •
Double line pneumatic system with rear connector •
Double line pneumatic system with ALB •
Hydraulic brake system •
Rear connectors hydraulic system •
Hand brake •
Set of plastic mudguards •
Straight hydraulic support •
Mechanical support •
Telescopic support •
Rotating drawbar eye ∅50 mm •
Standard drawbar eye ∅40 mm •
Standard drawbar eye ∅50 mm •
Ball drawbar eye K80. •
Wheel chocks •
Automatic rear hitch •

SECTION 1 Pronar T285/1
1.9
EQUIPMENT
STANDARD
ADDITIONAL
OPTIONS
Manual rear hitch •
Slow-moving vehicle warning sign •
Warning reflective triangle •
Lateral shields •
Toolbox •
Wheels 445/65R22.5reg. (18R22.5) •
Wheels: 445/65R22.5, 500/60R22.5, 550/60-22.5, 560/60R22.5,
600/50R22.5, 600/55-22.5, 620/50R22.5 •
Rear protection 2410 •
Rear protection 2460 •
Some standard equipment elements, which were listed in table (1.5), 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.
1.4 TERMS & CONDITIONS OF WARRANTY
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 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,

Pronar T285/1 SECTION 1
1.10
•brake shoes,
•bulbs and LED lamps,
•seals,
•bearings.
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, 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 warranty
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 warranty or not.
For detailed Terms & Conditions of Warranty, please refer to 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.