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PRONAR T285/1 Operator's Manual

Agricultural trailer
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TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
EDITION 2A-10-2014
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
phone:
+48 085 681 63 29
+48 085 681 63 81
fax:
+48 085 681 63 83
OPERATOR'S MANUAL
AGRICULTURAL TRAILER
PRONAR T285/1
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
PUBLICATION NO 385N-00000000-UM
www.pronar.pl

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Summary of Contents for PRONAR T285/1

  • Page 1 PRONAR Sp. z o.o. 17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE phone: +48 085 681 63 29 +48 085 681 64 29 +48 085 681 63 81 +48 085 681 63 82 fax: +48 085 681 63 83 +48 085 682 71 10 www.pronar.pl...
  • Page 3 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.
  • Page 4 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".
  • Page 5 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.

  • Page 7: Table Of Contents

    TABLE OF CONTENTS BASIC INFORMATION 1.1 IDENTIFICATION 1.1.1 TRAILER IDENTIFICATION 1.1.2 AXLE IDENTIFICATION 1.1.3 LIST OF FACTORY NUMBERS 1.2 PROPER USE 1.3 EQUIPMENT 1.4 TERMS & CONDITIONS OF WARRANTY 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...
  • Page 8 DESIGN AND OPERATING PRINCIPLE 3.1 TECHNICAL SPECIFICATION 3.2 TRAILER CONSTRUCTION 3.2.1 CHASSIS 3.2.2 TIPPING FRAME 3.2.3 MAIN BRAKE 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 CORRECT USE 4.1 PREPARING FOR WORK BEFORE FIRST USE...
  • Page 9 MAINTENANCE 5.1 PRELIMINARY INFORMATION 5.2 SERVICING WHEEL AXLE 5.2.1 PRELIMINARY INFORMATION 5.2.2 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS 5.2.3 ADJUSTMENT OF WHEEL AXLE BEARINGS LOOSENESS 5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING. 5.2.5 CHECK AIR PRESSURE, EVALUATE TECHNICAL CONDITION OF WHEELS AND TYRES 5.2.6 CHECKING THICKNESS OF BRAKE SHOE LININGS...
  • Page 10 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...
  • Page 11 SECTION BASIC INFORMATION...

  • Page 12: Identification

    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).

  • Page 13: Axle Identification

    SECTION 1 Pronar T285/1 TAB. 1.1 Markings on data plate ITEM MARKING General description and purpose Symbol /Type Year of manufacture Seventeen digit vehicle identification number (VIN) Official certificate number Tare weight Maximum gross weight Carrying capacity Permissible hitching system loading...

  • Page 14: Proper Use

    Pronar T285/1 SECTION 1 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 numbers of parts or the VIN number of the trailer, therefore it is recommended that these numbers are inscribed in the spaces below.
  • Page 15 SECTION 1 Pronar T285/1 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: •...
  • Page 16 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).
  • Page 17 SECTION 1 Pronar T285/1 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 sockets compliant with PN-ISO 1728 Nominal pressure of the pneumatic system bar / kPa 6.5 / 650...

  • Page 18: Equipment

    Pronar T285/1 SECTION 1 1.3 EQUIPMENT TAB. 1.5 Hook trailer equipment EQUIPMENT • 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 •...

  • Page 19: Terms & Conditions Of Warranty

    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.
  • Page 20 Pronar T285/1 SECTION 1 • 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: •...

  • Page 21: Transport

    SECTION 1 Pronar T285/1 1.5 TRANSPORT The hook 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).
  • Page 22 Pronar T285/1 SECTION 1 FIG. 1.2 Positioning of transport lugs (1) transport lug, (2) longitudinal member of the lower frame's drawbar, (3) cross-bar of the lower frame DANGER Incorrect application of securing measures may cause an accident. 1.12...

  • Page 23: Independent Transport By The User

    SECTION 1 Pronar T285/1 IMPORTANT! When being road transported on a motor vehicle the trailer must be mounted on the vehicle's platform in accordance with the transport safety requirements and the regulations. Driver of the vehicle should be particularly careful during travel. This is due to the vehicle's centre of gravity shifting upwards when loaded with the machine.
  • Page 24 Pronar T285/1 SECTION 1 available means. Remaining oil should be collected using sorbents, or by mixing the oil with sand, sawdust or other absorbent materials. The oil pollution, once gathered up, should be kept in a sealed, marked, hydrocarbon resistant container. The container should be kept away from heat sources, flammable materials and food.

  • Page 25: Withdrawal From Use

    SECTION 1 Pronar T285/1 1.7 WITHDRAWAL FROM USE In the event of decision by the user to withdraw the trailer from use, comply with the regulations in force in the given country concerning withdrawal from use and recycling of machines withdrawn from use. Before commencing dismantling, totally remove the oil from the hydraulic system and reduce air pressure completely in the pneumatic brake system (e.g.
  • Page 26 Pronar T285/1 SECTION 1 1.16...

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Basic Safety Rules

    Pronar T285/1 SECTION 2 2.1 BASIC SAFETY RULES 2.1.1 USE OF TRAILER • Before using the trailer, the user must carefully read this Operator's Manual and the WARRANTY BOOK. When operating the machine, the operator must comply with the recommendations.

  • Page 29: Hitching And Disconnecting From Tractor

    SECTION 2 Pronar T285/1 2.1.2 HITCHING AND DISCONNECTING FROM TRACTOR • Do NOT hitch trailer to tractor, if it does not fulfil the requirements made by the Manufacturer (minimal tractor power requirement, lack of required tractor hitch etc. - compare table 1.4 AGRICULTURAL TRACTOR'S REQUIREMENTS Before hitching trailer make certain that oil in external hydraulic system of tractor may be mixed with the hydraulic oil of the trailer.

  • Page 30: Hydraulic And Pneumatic Systems

    Pronar T285/1 SECTION 2 • Set the trailer to "hook trailer" function (the indicator light must be switched on). • While connecting load box arrange it in such a way that the longitudinal axis of the trailer is aligned with the longitudinal axis of the load box. If not, the load box longitudinal members of the frame may not fit on the trailer rollers lengthwise.

  • Page 31: Loading And Unloading Load Box

    SECTION 2 Pronar T285/1 with skin wash the area of contact with water and soap. Do NOT apply organic solvents (petrol, kerosene). • Use the hydraulic oil recommended by the Manufacturer. • After changing the hydraulic oil, the used oil should be properly disposed of. Used oil or oil, which has lost its properties, should be stored in original containers or replacement containers resistant to action of hydrocarbons.

  • Page 32: Transporting The Machine

    Pronar T285/1 SECTION 2 • Do NOT move off or drive when load box is raised. • Take particular care while working near electric power lines. • When opening load box closure take particular care, because of the pressure of the load on the wall.
  • Page 33 SECTION 2 Pronar T285/1 • Vertical load borne by the trailer drawbar eye affects the steering of the agricultural tractor. • If the journey takes place without load box, a slow-moving vehicle sign should be placed on the rear beam of the trailer, if the machine is the last vehicle in the group.
  • Page 34 Pronar T285/1 SECTION 2 FIG. 2.1 Positioning the warning sign (1) slow-moving vehicle sign • Do NOT exceed the trailer's maximum carrying capacity. Exceeding the carrying capacity may lead to damage to the machine, loss of stability and danger while driving.

  • Page 35: Tyres

    SECTION 2 Pronar T285/1 2.1.7 TYRES • When working with tyres, the trailer should be immobilised with parking brake and secured against rolling by placing chocks under wheel. Wheels can be taken off the trailer axle only when there is no load box on the trailer.
  • Page 36 Pronar T285/1 SECTION 2 • The trailer can only be stood on when it is absolutely motionless and the tractor engine is switched off. Tractor and trailer should be secured using parking brake and in addition chocks should be placed beneath trailer wheel. Ensure that unauthorised persons do not have access to the tractor cab.

  • Page 37: Description Of Minimal Risk

    2.2 DESCRIPTION OF MINIMAL RISK Pronar Sp. z o. o. in Narew has made every effort to eliminate the risk of accidents. There is, however, a certain minimal risk, which could lead to an accident, and this is connected mainly with the actions described below: •...

  • Page 38: Information And Warning Decals

    In the event of their destruction, they must be replaced with new ones. Safety decals are available from your PRONAR dealer or directly from PRONAR customer service. New assemblies, changed during repair, must be labelled once again with the appropriate safety signs.
  • Page 39 SECTION 2 Pronar T285/1 TAB. 2.1 Information and warning decals ITEM DECAL MEANING Before beginning servicing or repairs, switch off tractor's engine and remove key from ignition Ensure that unauthorised persons do not have access to the tractor cab. Caution! Before starting work, carefully read the Operator's Manual.
  • Page 40 Pronar T285/1 SECTION 2 ITEM DECAL MEANING Machine type Air pressure in the tyres * Maximum vertical drawbar load Information about the current trailer function: - „hook trailer” - „tipper” Transport suspension points Position of the hydraulic support leg control valve...
  • Page 41 SECTION 2 Pronar T285/1 FIG. 2.2 Locations of information and warning decals Markings on the figure according to table 2.1 2.15...
  • Page 42 Pronar T285/1 SECTION 2 2.16...

  • Page 43: Design And Operating Principle

    SECTION DESIGN AND OPERATING PRINCIPLE...

  • Page 44: Technical Specification

    Pronar T285/1 SECTION 3 3.1 TECHNICAL SPECIFICATION TAB. 3.1 Technical specification of hook trailer in standard version CONTENTS UNIT T285/1 Dimensions Total length without load box 7,313 Total width * 2,550 Height (without load box / with load box) 2,981 – 3,650 **...

  • Page 45: Trailer Construction

    SECTION 3 Pronar T285/1 ** - dimension with a 2500 mm-high load box, *** - height from load box base to hook axis **** - load capacity combined with load box weight, ***** - maintain air pressure in tyres according to the value specified on the decal, ****** - without hydraulic braking system.
  • Page 46 Pronar T285/1 SECTION 3 FIG. 3.1 Trailer chassis (1) lower frame, (2) drawbar eye, (3) straight hydraulic support, (4) straight support with mechanical gear, (5) handbrake mechanism, (6) steering axle, (7) rigid axle, (8) tandem suspension, (9) mudguard, (10) lamp assembly, (11) star nut, (12) load box interlock,...

  • Page 47: Tipping Frame

    SECTION 3 Pronar T285/1 3.2.2 TIPPING FRAME FIG. 3.2 Tipping frame (1) rear frame, (2) central frame, (3) hook frame, (4) tipping cylinder, (5) tipping frame lock mechanism, (6) hook with lock...
  • Page 48 Pronar T285/1 SECTION 3 Complete tipping frame comprises rear frame (1) - figure 3.2, central frame (2) and hook frame (3) to which is screwed the hook (6). Tipping frame is secured to lower frame with the aid of tipping axle and tipping cylinder (4). Hook lock automatically falls or rises depending on position of frame.

  • Page 49: Main Brake

    SECTION 3 Pronar T285/1 Tipping frame lock mechanism is operated from the tractor driver's cab with the aid of the tractor external hydraulic system manifold lever (by proper activation of limit switches (1, 2) of switching cylinder (3) – figure 3.3). During tipping the load box to the rear, the central frame must be immobilised together with the rear frame (switching cylinder (3) is maximally extended).
  • Page 50 Pronar T285/1 SECTION 3 FIG. 3.4 Design and diagram of double line pneumatic braking system with manual braking force regulator (1) air tank, (2) control valve, (3) braking force regulator, (4) pneumatic cylinder, (5) line connector (yellow), (6) line connector (red), (7) air filter, (8) air tank control connector, (9)
  • Page 51 SECTION 3 Pronar T285/1 FIG. 3.5 Design and diagram of double line pneumatic braking system with automatic braking force regulator (1) air tank, (2) control valve, (3) braking force regulator, (4) pneumatic cylinder, (5) line connector (yellow), (6) line connector (red), (7) air filter, (8) air tank control connector, (9)
  • Page 52 Pronar T285/1 SECTION 3 inadvertent disconnection of the line between the trailer and the tractor, the control valve will automatically activate trailer's brakes. Valve used in the system is equipped with a circuit causing the brakes to be applied when trailer is disconnected from the tractor. When compressed air line is connected to the tractor, the device automatically applying the brakes now changes its position to allow normal brake operation.

  • Page 53: Parking Brake

    SECTION 3 Pronar T285/1 FIG. 3.7 Design and diagram of hydraulic braking system (1) hydraulic cylinder, (2) hydraulic quick coupler, (3) socket The main hydraulic brake (available as optional equipment) is activated from the tractor driver's cab by pressing on the brake pedal. Agricultural tractor equipped with suitable hydraulic system is required to operate the hydraulic braking system.

  • Page 54: Hydraulic System

    Pronar T285/1 SECTION 3 3.2.5 HYDRAULIC SYSTEM FIG. 3.8 Hydraulic system diagram (1) quick coupler - plug, (2) electro-hydraulic valve, (3) suspension cylinder, (4) raising cylinder, (5a) limit valve, (5b) limit valve, (6) anti-shock valve, (7) load box interlock cylinder, (8) sensor - limit switch, (9) switching cylinder, (10) hook frame cylinder, (11) hydraulic lock 3.12...
  • Page 55 SECTION 3 Pronar T285/1 The hook trailer is equipped with the central hydraulic system with the system of electro- hydraulic protections. The hydraulic system is supplied with oil from the tractor external hydraulic system and controlled by the tractor hydraulic manifold and it performs the following functions: •...

  • Page 56: Turning Interlock Hydraulic System

    Pronar T285/1 SECTION 3 The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil. 3.2.6 TURNING INTERLOCK HYDRAULIC SYSTEM The hook trailer is equipped with a passively steered rear steering axle. Axle design enables easier cornering and easier manoeuvring on marshy terrain. The wear of tyres and mechanical components, such as bearings and trailer suspension components, is consequently reduced.

  • Page 57: Support Hydraulic System

    SECTION 3 Pronar T285/1 3.2.7 SUPPORT HYDRAULIC SYSTEM The parking stand hydraulic system extends the stand to support the trailer disconnected from the tractor or when it is parked in the garage after use. Using parking stand hydraulic system drawbar height can be adjusted when hitching and disconnecting the trailer. The parking stand hydraulic system is supplied with oil by the tractor hydraulics.

  • Page 58: Electrical System

    Pronar T285/1 SECTION 3 The hydraulic system of the support is filled with L-HL32 Lotos hydraulic oil. 3.2.8 ELECTRICAL SYSTEM FIG. 3.11 Positioning of electrical system components and reflective lights (1), (2) rear lamp assembly left/right, (3), (4) front rear and side parking light left/right,...
  • Page 59 SECTION 3 Pronar T285/1 FIG. 3.12 Design of electrical lighting system (1) central wiring harness, (2) rear wiring harness, (3) front wiring harness, (4) connecting wiring harness, (5) connection lead, (6) 7-pin socket The electrical system of the hydraulic system (figure 3.13) is connected using a connection lead (2) with a 3-pin plug.
  • Page 60 Pronar T285/1 SECTION 3 FIG. 3.13 Design of electrical lighting system of hydraulic system (1) solenoid valves wiring harness, (2) connection lead, (3) sensor, (4) 3-pin socket, (5) front clearance lamp 3.18...
  • Page 61 SECTION 3 Pronar T285/1 FIG. 3.14 Electrical system diagram (1) central wiring harness, (2) rear wiring harness, (3) front wiring harness, (4) connecting wiring harness Marking according to table (3.2), (3.3) and (3.4) 3.19...
  • Page 62 Pronar T285/1 SECTION 3 TAB. 3.2 List of electrical component markings SYMBOL FUNCTION Rear right lamp assembly Rear left lamp assembly Front seven pin socket Rear seven pin socket Right license plate light Left license plate light Front clearance lamp and right side parking light (LED)
  • Page 63 SECTION 3 Pronar T285/1 TAB. 3.4 Line colour marking MARKING COLOUR White Black Violet Lazurite Blue Brown Orange Pink Grey Green Yellow FIG. 3.15 Diagram of electrical system of hydraulic system (1) solenoid valves wiring harness, (2) connection lead, (3) sensor, (4) 3-pole socket, (5) solenoid valve, (6) front clearance lamp 3.21...
  • Page 64 Pronar T285/1 SECTION 3 3.22...

  • Page 65: Correct Use

    SECTION CORRECT USE...

  • Page 66: Preparing For Work Before First Use

    Pronar T285/1 SECTION 4 4.1 PREPARING FOR WORK BEFORE FIRST USE 4.1.1 CHECKING THE TRAILER AFTER DELIVERY The manufacturer guarantees that the trailer is fully operational and has been checked according to quality control procedures and is ready for use. This does not release the user from an obligation to check the machine's condition after delivery and before first use.

  • Page 67: Prepare The Trailer For First Hitching To Tractor

    SECTION 4 Pronar T285/1 4.1.2 PREPARE THE TRAILER FOR FIRST HITCHING TO TRACTOR Preparation Check all the trailer's lubrication points, lubricate the machine as needed according to recommendations provided in section 5, Check if the nuts fixing the wheels, drawbar retaining bolts and other major nut and bolt connections are properly tightened.
  • Page 68 Pronar T285/1 SECTION 4 Such operating activities as hitching to/unhitching from tractor, connecting/disconnecting the load box etc. are described in detail in further parts of the Operator's Manual, in sections 4 and 5 The trailer may be hitched only when all preparatory activities including inspection of technical condition have been completed satisfactorily.

  • Page 69: Hitching And Disconnecting From Tractor

    SECTION 4 Pronar T285/1 4.2 HITCHING AND DISCONNECTING FROM TRACTOR Ensure that pneumatic, hydraulic and electric connections and the hitch of agricultural tractor are according to the Manufacturer's requirements, if not the trailer should not be hitched to the tractor.
  • Page 70 Pronar T285/1 SECTION 4 FIGURE 4.1 Trailer parking stand (1) hydraulic support, (2) mechanical gear support, (3) hydraulic support valve, (4) gear crank, (O) valve position OPEN, (Z) valve position CLOSED, (A) mechanical support lifting, (B) support lowering, (C),(D) choice of gear setting Connect hydraulic brake system line (applies to trailer version with hydraulic brake system).
  • Page 71 SECTION 4 Pronar T285/1 Raise support maximally upwards, valve (3) set in closed position (Z), Release parking brake. Turn the brake mechanism anticlockwise. DANGER When hitching, there must be nobody between the trailer and the tractor. When hitching the machine, tractor driver must exercise particular caution and make sure that nobody is present in the hazard zone.
  • Page 72 Pronar T285/1 SECTION 4 IMPORTANT! Trailer may only be hitched to a tractor, which has the appropriate hitch, connection sockets for braking, hydraulic and electrical systems, and hydraulic oil in both machines is the same type and may be mixed.

  • Page 73: Coupling And Uncoupling Second Trailer

    SECTION 4 Pronar T285/1 Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab. Disconnect hydraulic system conduits, pneumatic system conduits and electrical leads from the tractor. Protect terminal ends with covers, Place line terminals in appropriate sockets.
  • Page 74 Pronar T285/1 SECTION 4 Remove cotter pin securing pin and take out hitch pin (2) in the first trailer - figure (4.2). Adjust the height of the drawbar of the second trailer in such a manner as to enable coupling the machines.

  • Page 75: Pulling The Load Box On The Trailer

    SECTION 4 Pronar T285/1 Remove cotter pin from pin of the hitch of the first trailer. Remove drawbar pin and drive tractor away. DANGER When hitching, there must be nobody between the trailers. Person assisting hitching up machines should stand outside the area of danger and be visible to the tractor driver at all times.
  • Page 76 Pronar T285/1 SECTION 4 FIGURE 4.3 Pulling the load box on the trailer – stage 1 Set the trailer to "hook trailer" function. Correct setting of the trailer will be indicated by the indicator light located next to the "hook trailer" symbol. In this function: raising (active), hook frame (active), load box interlock will be unlocked.
  • Page 77 SECTION 4 Pronar T285/1 FIGURE 4.4 Pulling the load box on the trailer – stage 2 Move the hook frame slightly forward in order to raise the front of the load box and support the load box lug on the hook.
  • Page 78 Pronar T285/1 SECTION 4 In the event of pulling the load box, which is not standing on hard ground, it is permissible to reverse the trailer after raising the load box to a height enabling it to be pulled in. Soft ground preventing easy rolling of the load box rollers significantly hinders the load box pulling in process.

  • Page 79: Removing Load Box From Trailer

    SECTION 4 Pronar T285/1 4.5 REMOVING LOAD BOX FROM TRAILER Removing load box from trailer must be done on hard and level ground. If not, the load box rollers may dig into the earth and hinder disconnection from the trailer. The load box must not be left on a slope.

  • Page 80: Loading The Load Box

    Pronar T285/1 SECTION 4 DANGER When disconnecting the load box from the trailer the drawbar shaft and tractor hitch are subjected to great loading. Other persons must NOT be in the immediate vicinity of the trailer and especially behind the disconnected load box.
  • Page 81 SECTION 4 Pronar T285/1 TABLE 4.1 Guideline weights by volume of selected loads VOLUME WEIGHT TYPE OF MATERIAL KG/M Root crops: raw potatoes 700 - 820 steamed crushed potatoes 850 - 950 dried potatoes 130 - 150 sugar beet - roots...
  • Page 82 Pronar T285/1 SECTION 4 VOLUME WEIGHT TYPE OF MATERIAL KG/M steel structures 700 – 7 000 milled burnt lime 700 - 800 cinders 650 - 750 gravel 1 600 – 1 800 straw litter and bulk feeds meadow hay dried in the swath...
  • Page 83 SECTION 4 Pronar T285/1 VOLUME WEIGHT TYPE OF MATERIAL KG/M cut fresh beet leaves 350 - 400 beet leaves in gathering trailer 180 - 250 concentrated feeds and mixed feeds: stored chaff 200 - 225 pressed cake 880 – 1 000...
  • Page 84 Pronar T285/1 SECTION 4 VOLUME WEIGHT TYPE OF MATERIAL KG/M oats 400 - 530 lucerne 760 - 800 640 - 760 Others: dry soil 1 300 – 1 400 wet soil 1 900 – 2 100 fresh peat 700 - 850...

  • Page 85: Transporting Loads

    SECTION 4 Pronar T285/1 4.7 TRANSPORTING LOADS When driving on public or private roads, respect the road traffic regulations, exercise caution and prudence. Listed below are the key guidelines for driving the tractor and trailer combination. • Before moving off make sure that there are no bystanders, especially children, near the trailer or the tractor.

  • Page 86: Unloading

    Pronar T285/1 SECTION 4 • While driving on public roads the trailer must be fitted with a certified or authorised reflective warning triangle. • When driving, comply with all road traffic regulations, indicate an intention to turn using indicator lamps, keep all road lights and indicator lights clean at all times and ensure they are in good condition.
  • Page 87 SECTION 4 Pronar T285/1 DANGER Tipping may only be performed when trailer is hitched to tractor. Do NOT tip load box in strong gusty winds conditions. Do NOT move off or drive when load box is raised. Take particular care while working near electric power lines.

  • Page 88: Proper Use And Maintenance Of Tyres

    Pronar T285/1 SECTION 4 Lower the tilting frame after unloading. If needed, shift the load box completely forward using the hook frame and setting the trailer to the "hook trailer" function. Remove remains of load from the load box edges and the trailer components.

  • Page 89: Using Under-Run Protective Devices

    SECTION 4 Pronar T285/1 • Pressure and tyres should be also checked during the whole day of intensive work. Please note that higher temperatures could raise tyre pressure by as much as 1 bar. At high temperatures and pressure, reduce load or speed.
  • Page 90 Pronar T285/1 SECTION 4 FIGURE 4.6 Under-run protective device, left (1) under-run protective device, left, (2) arm of under-run protective device, (3) bracket, (4) latch Lowering Pull the under-run protective device. Lower the under-run protective device and press until the bracket pin (3) locks into the latch.

  • Page 91: Maintenance

    SECTION MAINTENANCE...

  • Page 92: Preliminary Information

    Pronar T285/1 SECTION 5 5.1 PRELIMINARY INFORMATION When using the trailer, regular inspections of its technical condition are essential and the performance of maintenance procedures, which keep the machine in good technical condition. In connection with this the user of the trailer is obliged to perform all the maintenance and adjustment procedures defined by the Manufacturer.

  • Page 93: Check Wheel Axle Bearings For Looseness

    SECTION 5 Pronar T285/1 • other axle repairs, may be performed by specialist workshops. 5.2.2 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS DANGER Before commencing work the user must read the instructions for lifting and adhere to the manufacturer's instructions. The lifting jack must be stably supported by the ground and so must the axle.

  • Page 94: Adjustment Of Wheel Axle Bearings Looseness

    Pronar T285/1 SECTION 5 Repeat the inspection procedure for other wheels, remembering that the lifting jack must be on the side opposite to the chocks. If play is felt, adjust bearing. Unusual sounds coming from bearing may be symptoms of excess wear, dirt or damage.
  • Page 95 SECTION 5 Pronar T285/1 FIG. 5.1 Adjustment of road wheel axle bearings (1) hub cover, (2) castellated nut, (3) securing split cotter pin Preparation procedures Prepare tractor and trailer for adjustment procedures according with description provided in section 5.2.2. Adjustment of road wheel axle bearings Take off hub cover (1) - figure (5.1).

  • Page 96: Mounting And Dismounting Wheel, Inspection Of Wheel Nut Tightening

    Pronar T285/1 SECTION 5 Delicately tap hub cap with rubber or wooden hammer. If the wheel is dismounted, bearing looseness is easy to check and adjust. 5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING. Checking wheel axle tightening: •...
  • Page 97 SECTION 5 Pronar T285/1 Place wheel on hub, tighten nuts so that wheel rim adjoins hub exactly. Lower trailer, tighten nuts according to recommended torque and given sequence. Wheel nuts should be tightened using a torque of 450 - 510 Nm - nuts M22x1.5.

  • Page 98: Check Air Pressure, Evaluate Technical Condition Of

    Pronar T285/1 SECTION 5 IMPORTANT! Axle nuts may not be tightened with impact wrench, because of danger of exceeding permissible tightening torque, the consequence of which may be breaking the thread connection or breaking off the hub pins. The greatest precision is achieved by use of a torque spanner. Before commencing work, ensure that correct tightening torque value is set.

  • Page 99: Checking Thickness Of Brake Shoe Linings

    SECTION 5 Pronar T285/1 In case of mechanical damage consult the nearest tyre service and check whether the tyre defect requires tyre replacement. Wheels should be inspected with regard to distortion, breaking of material, breaking of welds, corrosion, especially in the area of welds and contact with tyre.

  • Page 100: Mechanical Brakes Adjustment

    Pronar T285/1 SECTION 5 FIG. 5.3 Check brake shoe linings for wear (1) brake drum, (2) disc, (3) inspection openings, (G) thickness of brake shoe lining 5.2.7 MECHANICAL BRAKES ADJUSTMENT During use of trailer abrasive friction covering of brake drums is subject to wear. Piston stroke extends, and exceeding braking force limiting value declines.
  • Page 101 SECTION 5 Pronar T285/1 FIG. 5.4 Design of axle brake system (1) expander arm , (2) expander shaft, (3) adjustment bolt, (4) brake cylinder, (5) brake cylinder piston, (6) cylinder fork, (7) fork pin During braking, the brake cylinder piston stroke should be within the specified operating range and the angle between brake cylinder piston (1) and expander arm (3) should be about 90º–...
  • Page 102 Pronar T285/1 SECTION 5 • Technical condition of the brake system should be checked every 6 months. The inspection involves measuring the extension length of each brake cylinder piston while braking at parking. If the brake cylinder piston stroke exceeds the maximum value (45 mm), the braking system should be adjusted.
  • Page 103 SECTION 5 Pronar T285/1 Required service actions Hitch trailer to tractor. Switch off tractor engine and remove key from ignition. Immobilise tractor with parking brake. Make sure that the trailer's brakes are not engaged. Secure the trailer with wheel chocks.

  • Page 104: Change Of Parking Brake Cable And Adjustment Of Cable Tension

    Pronar T285/1 SECTION 5 Install the brake cylinder fork pin and washers and secure the pin with cotter pins. Rotate adjustment bolt (4) to the right until one or two clicking sounds are heard in the expander arm regulating mechanism.
  • Page 105 SECTION 5 Pronar T285/1 • after adjustment of axle brakes, • after repairs to axle brake system, • after repairs in parking brake system. FIG. 5.6 Adjustment of parking brake cable tension (1) brake crank mechanism, (2) wheel axle, (3) handbrake cable I; l=900mm, (4) handbrake cable II;...
  • Page 106 Pronar T285/1 SECTION 5 Dismantle proper shackles (6) at the ends of cable to be replaced. Dismantle parking brake cable. Clean parking brake components, lubricate crank mechanism and pins of cable guide rollers. Install new cable. Parking brake cable must be fitted carefully.

  • Page 107: Pneumatic System Maintenance

    SECTION 5 Pronar T285/1 Loosen nuts (8) of U-bolt clamps (7) on handbrake cable I (3). Tighten cable and tighten clamps. Length of parking brake cable should be so selected that at total release of working and parking brake the cable would be loose and hanging by 1 - 2 cm.

  • Page 108: Inspecting And Checking Air Tightness Of Pneumatic System

    Pronar T285/1 SECTION 5 5.3.2 INSPECTING AND CHECKING AIR TIGHTNESS OF PNEUMATIC SYSTEM. Checking hydraulic system tightness Hitch trailer to tractor. Immobilise tractor and trailer with parking brake. Place chocks under trailer wheel. Start tractor in order to supplement air in trailer brake system tank.

  • Page 109: Cleaning The Air Filters

    SECTION 5 Pronar T285/1 grease, petrol etc. may cause damage and accelerate the ageing process. Bent lines, permanently deformed, cut or worn should be replaced. Visual assessment of system: • Conduct inspection of system at the same time as when checking tightness.
  • Page 110 Pronar T285/1 SECTION 5 FIG. 5.8 Air filter (1) securing slide lock, (2) air filter cover Required service actions Reduce pressure in supply line. Reduction of pressuring line may be achieved by pressing the head of the pneumatic connection to resistance point.

  • Page 111: Draining Water From Air Tank

    SECTION 5 Pronar T285/1 5.3.4 DRAINING WATER FROM AIR TANK FIG. 5.9 Draining water from air tank (1) drain valve, (2) air tank Required service actions Open out drain valve (1) placed in lower part of tank (2) – the tank is placed on brackets of right longitudinal frame of lower frame.

  • Page 112: Cleaning Drain Valve

    Pronar T285/1 SECTION 5 5.3.5 CLEANING DRAIN VALVE DANGER Before dismantling drain valve release air from tank. Required service actions Reduce pressure in air tank. Reduction of pressure in tank is achieved by tilting the drain valve mandrel. Unscrew valve.
  • Page 113 SECTION 5 Pronar T285/1 If the trailer is unhitched from the tractor, connections should be protected by cover or placed in their designated socket. Before the winter period it is recommended to preserve the seal with special preparations (e.g. silicon grease for rubber elements).

  • Page 114: Hydraulic System Operation

    Pronar T285/1 SECTION 5 5.4 HYDRAULIC SYSTEM OPERATION 5.4.1 PRELIMINARY INFORMATION Work connected with the repair, change or regeneration of hydraulic system components (raising cylinder, valves etc.) should be entrusted to specialist establishments, having the appropriate technology and qualifications for this type of work.

  • Page 115: And Sockets

    SECTION 5 Pronar T285/1 permissible with symptoms of "sweating", however in the event of noticing leaks in the form of "droplets" stop using the trailer until faults are remedied. If unreliability is evident in brake cylinders do NOT use trailer with damaged system until faults are remedied.

  • Page 116: Operation Of Electrical System And Warning Elements

    Pronar T285/1 SECTION 5 5.5 OPERATION OF ELECTRICAL SYSTEM AND WARNING ELEMENTS 5.5.1 PRELIMINARY INFORMATION Work connected with the repair, change or regeneration of electrical system components should be entrusted to specialist establishments, having the appropriate technology and qualifications for this type of work.

  • Page 117: Changing Bulbs

    SECTION 5 Pronar T285/1 Before driving away make certain that all lamps and reflective lights are clean. 5.5.2 CHANGING BULBS Bulb set is presented in table (5.3). All light lenses are secured by screws and it is not necessary to dismantle whole lamp or trailer subassemblies.

  • Page 118: Hook Setting Adjustment

    Pronar T285/1 SECTION 5 5.6 HOOK SETTING ADJUSTMENT Hook trailer enables connection with load boxes, with hitching eye at height of 1,570 mm (standard, according to DIN 30722-1) or 1,450 mm. Changing height of hook should be performed by two persons. Self-locking nuts M20-8 should be replaced and tightened to appropriate moment.
  • Page 119 SECTION 5 Pronar T285/1 (5) of suspension interlock and load box hydraulic interlock (6). After adjustment, secure adjustment bolts with counternuts (7). Activation of limit switch (8) should be regulated by means of bolt (9). When slides (10) of the interlock are slid together, the limit switch (8) must be pressed.
  • Page 120 Pronar T285/1 SECTION 5 FIG. 5.12 Adjusting limit valves and limit switches (1) limit valve, (2) adjustment bolt, (3) bumper, (4) raising cylinder, (5) suspension cylinder, (6) load box interlock cylinder (7) counternut, (8) limit switch, (9) bolt, (10) interlock slide, (11)

  • Page 121: Trailer Lubrication

    SECTION 5 Pronar T285/1 5.8 TRAILER LUBRICATION Trailer lubrication should be performed with the aid of a manually or foot operated grease gun, filled recommended grease. Before commencing work insofar as is possible remove old grease and other contamination. Remove and wipe off excess oil or grease.
  • Page 122 Pronar T285/1 SECTION 5 TAB. 5.5 Trailer lubrication schedule ITEM LUBRICATION POINT Hub bearing Drawbar eye Pins of the main cylinder and hook frame cylinder Hook lock pin Parking brake mechanism Central frame rotation sleeve Leaf spring absorber sliding surface...
  • Page 123 SECTION 5 Pronar T285/1 ITEM LUBRICATION POINT Expander arm Pin of turn cylinder fixing Connection pin Stub axle pin Side slide Pin of the load box interlock cylinder Parking brake guide roller pins Lubrication periods – M months, D – days, –...
  • Page 124 Pronar T285/1 SECTION 5 FIG. 5.13 Trailer's lubrication points, part 1 5.34...
  • Page 125 SECTION 5 Pronar T285/1 FIG. 5.14 Trailer's lubrication points, part 2 5.35...

  • Page 126: Consumables

    Pronar T285/1 SECTION 5 5.9 CONSUMABLES 5.9.1 HYDRAULIC OIL Always adhere to the principle that the oil in the trailer hydraulic system and in the tractor hydraulic system are of the same type. In the event of application of different types of oil make certain that both hydraulic substances may be mixed together.

  • Page 127: Lubricants

    SECTION 5 Pronar T285/1 with the use of carbon dioxide, foam or extinguisher steam. Do not use water to quench oil fires. 5.9.2 LUBRICANTS For parts under great load it is recommended to apply lithium grease with molybdenum disulphide (MOS ) or graphite additive.
  • Page 128 Pronar T285/1 SECTION 5 • For cleaning and maintenance of plastic coated surfaces it is recommended to use clean water or special preparations designed for this purpose. • Do not apply organic solvents, preparations of unknown origin or other substances, which may cause damage to lacquered, rubber or plastic surfaces. In the event of doubt it is recommended to make a test on an unseen surface area.

  • Page 129: Storage

    SECTION 5 Pronar T285/1 5.11 STORAGE • Trailer should be kept in a closed or roofed building. • If the machine will not be used for a long time, it is essential to protect it from adverse weather, especially rust and accelerated tyre deterioration. During this time the machine must be unloaded.
  • Page 130 Pronar T285/1 SECTION 5 10.9 THREAD METRIC Md [Nm] 1,050 1,150 1,650 1,050 1,450 2,100 – resistance class according to DIN ISO 898 standard Hydraulic lines should be tightened with torque of 50 – 70 Nm. FIG. 5.15 Bolt with metric thread (1) resistance class, (d) thread diameter 5.40...

  • Page 131: Drawbar Eye Adjustment

    SECTION 5 Pronar T285/1 5.13 DRAWBAR EYE ADJUSTMENT To adjust drawbar eye position change the position of drawbar eye (2-4) with regard to drawbar's faceplate (1) – figure (5.16). FIG. 5.16 Adjustment of drawbar position (1) drawbar's faceplate, (2) ball drawbar, (3) rotating drawbar eye, (4) fixed drawbar eye,...

  • Page 132: Troubleshooting

    Pronar T285/1 SECTION 5 5.14 TROUBLESHOOTING TAB. 5.8 Troubleshooting FAULT CAUSE REMEDY Brake system pneumatic Connect brake lines (applies to lines not connected pneumatic systems) Applied parking brake Release parking brake. Damaged pneumatic Replace. Problem with moving off system connection lines...
  • Page 133 SECTION 5 Pronar T285/1 FAULT CAUSE REMEDY Insufficient tractor hydraulic pump output, tractor Check tractor hydraulic pump. hydraulic pump is damaged. Check cylinder ram piston (bending, corrosion), check ram Damaged or contaminated cylinder for tightness (piston seal), ram cylinder in case of need repair or replace ram cylinder.
  • Page 134 Pronar T285/1 SECTION 5 5.44...
  • Page 135 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...

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