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PRONAR T680P User Manual

Agricultural trailer
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REVISION 4A-01-2010
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, WOJ. PODLASKIE
tel.:
fax:
USER MANUAL
AGRICULTURAL TRAILER
PRONAR T680P
TRANSLATION OF ORIGINAL MANUAL
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NUMBER 116N-00000000-UM
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl

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Summary of Contents for PRONAR T680P

  • Page 1 PRONAR Sp. z o.o. 17-210 NAREW, UL. MICKIEWICZA 101A, WOJ. PODLASKIE tel.: +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 Thank you for purchasing our trailer. In the interests of your safety and care for the reliability and durability of the machine, we ask that you familiarise yourself with the content of this manual. Remember!!! Before using the trailer for the first time, check if the wheels are properly tightened!!! Regularly check the technical condition of the machine in accordance with the attached schedule.

  • Page 5: Manufacturer's Address

    This will guarantee safe and trouble-free operation of the machine. The machine was constructed in accordance with applicable standards, documents and current legal regulations. The User Manual describes the basic principles of safe use and operation of Pronar T680P agricultural trailer.

  • Page 6: Symbols Used In The Manual

    SYMBOLS USED IN THE MANUAL Information, descriptions of hazards and precautions as well as instructions and orders related to safe use in the manual are marked with: and preceded by the word „DANGER”. Failure to comply with these recommendations may endanger the health or life of persons operating the machine or unauthorized bystanders.
  • Page 7 DESIGNATION OF DIRECTIONS IN THE MANUAL Left side – the left-hand side of the observer facing the machine in the forward direction. Right side – the right-hand side of the observer facing the machine in the forward direction. THE SCOPE OF SERVICE ACTIVITIES The maintenance activities described in the manual are marked with the sign: The result of the maintenance / adjustment activity or remarks concerning the performed activities is marked with the sign:...

  • Page 9: Table Of Contents

    CONTENTS 1 GENERAL IDENTIFICATION 1.1.1 IDENTIFICATION OF TRAILER 1.1.2 IDENTIFICATION OF DRIVING AXLES 1.1.3 LIST OF FACTORY NUMBERS INTENDED USE EQUIPEMENT TERMS OF WARRANTY 1.10 TRANSPORT 1.11 1.5.1 TRUCKING 1.11 1.5.2 USER'S TRANSPORT 1.13 THREAT TO THE ENVIRONMENT 1.14 WITHDRAWAL FROM USE 1.15 2 SAFETY OF USE GENERAL TERMS OF SAFETY...
  • Page 10 3 CONSTRUCTION AND PRINCIPLE OF OPERATION TECHNICAL CHARACTERISTICS CHASSIS LOAD BOX SERVICE BRAKE PARKING BRAKE 3.12 HYDRAULIC TIPPING SYSTEM 3.13 ELECTRICAL INSTALLATION, WARNING ELEMENTS 3.15 4 RULES OF USE PREPARING FOR WORK BEFORE FIRST USE TECHNICAL INSPECTION OF THE TRAILER TECHNICAL CONNECTING TO THE TRACTOR CONNECTING AND DISCONNECTING OF A SECOND TRAILER...
  • Page 11 5.2.3 CHECKING THE CLEARANCE OF THE AXLE BEARINGS 5.2.4 ADJUSTING THE CLEARANCE OF THE AXLE BEARINGS 5.2.5 WHEEL ASSEMBLY AND DISASSEMBLY, CHECKING NUT TIGHTNESS 5.2.6 AIR PRESSURE CONTROL, ASSESSMENT OF TECHNICAL CONDITION OF TIRES AND STEEL WHEELS 5.10 5.2.7 ADJUSTMENT OF MECHANICAL BRAKES 5.11 5.2.8 REPLACEMENT AND ADJUSTMENT OF PARKING BRAKE CABLE TENSION...
  • Page 12 5.7.2 LUBRICANTS 5.31 CLEANING THE TRAILER 5.31 STORAGE 5.33 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.34 5.11 TROUBLESHOOTING 5.36...

  • Page 13: General

    CHAPTER GENERAL...

  • Page 14: Identification

    Pronar T680P CHAPTER 1 1.1 IDENTIFICATION 1.1.1 IDENTIFICATION OF TRAILER FIGURE 1.1. Location of nameplate and serial number (1) nameplate, (2) serial number The trailer was marked with a nameplate (1) and the serial number (2) placed on a rectangular field painted in gold. The serial number and the nameplate are located on the front beam of upper frame - figure(1.1).

  • Page 15: Identification Of Driving Axles

    CHAPTER 1 Pronar T680P TABLE 1.1. Nameplate markings ITEM MARKING General information and function Trailer symbol / type Year of trailer production Seventeen-digit serial number (VIN) Certificate approval number The trailer's karb weight Permissible gross weight Capacity Permissible load on the coupling device (not applicable)

  • Page 16: List Of Factory Numbers

    Pronar T680P CHAPTER 1 FIGURE 1.2. Location of the nameplate of driving axle (1) driving axle, (2) nameplate 1.1.3 LIST OF FACTORY NUMBERS ADVICE If you need to order spare parts or if you have problems with it, it is very often necessary to provide the serial numbers of the part or VIN of the trailer, so it is recommended to write these numbers in the fields below.

  • Page 17: Intended Use

    CHAPTER 1 Pronar T680P 1.2 INTENDED USE The trailer is designed for transporting crops and agricultural products (loose, volumetric, long-haul, etc.) and loads on euro-pallets and box-pallets within the farm and on public roads. Transportation of building materials, mineral fertilizers and other loads is allowed provided that the requirements of Chapter 4 are met.
  • Page 18 Pronar T680P CHAPTER 1 a given country must be observed. The trailer speed must not, however, be greater than the maximum design speed 40 km/h. Intended use also includes all activities related to the correct and safe operation and maintenance of the machine. Therefore, the user is obliged to: •...
  • Page 19 CHAPTER 1 Pronar T680P TABLE 1.2. Recommended pallet types LENGTH WIDTH HEIGHT PALETTE NAME– TYPE [mm] [mm] [mm] EUR pallet - standard 1,200 EUR pallet - 1/2 EUR pallet - large 1,200 1,200 Requirements for the cooperation of the trailer with an agricultural tractor are presented in the table below.
  • Page 20 Pronar T680P CHAPTER 1 If a second trailer is connected to the trailer, it must meet the requirements specified in table (1.4). ADVICE The tractor's requirements depend on the completion of the trailer. TABLE 1.4. Second trailer requirements CONTENT UNIT...

  • Page 21: Equipement

    CHAPTER 1 Pronar T680P 1.3 EQUIPEMENT Standard equipment and equipment available on special customer's request are presented in table (1.5). TABLE 1.5. T680P trailer equipment EQUIPMENT • User manual • Warranty Card • Electrical installation connection cable • Wheel chocks •...

  • Page 22: Terms Of Warranty

    CHAPTER 1 1.4 TERMS OF WARRANTY PRONAR Sp. z o.o. in Narew guarantees smooth operation of the machine when it is used in accordance with the technical and operational conditions described in the USER MANUAL. Deadline for completion of repairs is specified in the WARRANTY CARD.

  • Page 23: Transport

    CHAPTER 1 Pronar T680P ADVICE You should require the seller to carefully fill out the Warranty Card and complaint coupons. The lack of e.g. date of sale or point of sale stamp exposes the user to not accept any complaints.
  • Page 24 Pronar T680P CHAPTER 1 the instructions in the operating instructions of the manufacturer of the securing material used. Chocks, wooden beams or other elements without sharp edges should be placed under the trailer wheels, protecting the machine against rolling. Trailer wheel blocks must be nailed to the load platform planks of the car or secured in another way preventing their movement.

  • Page 25: User's Transport

    CHAPTER 1 Pronar T680P FIGURE 1.3. Arrangement of transport handles (1) carrying handle, (2) upper frame member, (3) bottom frame member 1.5.2 USER'S TRANSPORT In the case of independent transport by the user after purchasing the trailer, read the trailer User Manual and follow its recommendations.

  • Page 26: Threat To The Environment

    Pronar T680P CHAPTER 1 1.6 THREAT TO THE ENVIRONMENT A hydraulic oil leak is a direct threat to the natural environment owing to its limited biodegradability. The negligible solubility of hydraulic oil in water does not cause acute toxicity of organisms living in the aquatic environment. The formed layer of oil on the water may cause direct physical impact on organisms, it may cause changes in the oxygen content in water due to the lack of direct contact of air with water.

  • Page 27: Withdrawal From Use

    CHAPTER 1 Pronar T680P 1.7 WITHDRAWAL FROM USE If the user decides to withdraw the trailer from use, comply with the provisions in force in the given country regarding withdrawal from use and recycling of machines withdrawn from use. Before disassembly, remove all oil from the hydraulic system and completely reduce air pressure in the pneumatic braking systems (e.g.
  • Page 28 Pronar T680P CHAPTER 1 1.16...

  • Page 29: Safety Of Use

    CHAPTER SAFETY OF USE...

  • Page 30: General Terms Of Safety

    Pronar T680P CHAPTER 2 2.1 GENERAL TERMS OF SAFETY 2.1.1 TRAILER USE • Before using the trailer, the user should carefully read the content of this document WARRANTY CARD. During their operation, recommendations contained therein must be observed. • The trailer may only be used and operated by persons authorized to drive agricultural tractors with a trailer.

  • Page 31: Connecting And Disconnecting The Trailer To The Tractor

    CHAPTER 2 Pronar T680P • In the final phase of rolling up the tarpaulin, it is essential to hold one hand on the top of the front frame or other solid structural elements of the trailer. Failure to do so may result in a fall.

  • Page 32: Hydraulic And Pneumatic Installations

    Pronar T680P CHAPTER 2 • When connecting nobody may be between the trailers. The person who helps to aggregate the machine should stand in such a place (outside the danger zone) that it is visible all the time by the tractor operator.

  • Page 33: Loading And Unloading Of A Trailer

    CHAPTER 2 Pronar T680P • Rubber hydraulic conduits must be replaced every 4 years regardless of their technical condition. 2.1.5 LOADING AND UNLOADING OF A TRAILER • Loading and unloading work should be carried out by a person experienced in this type of work.

  • Page 34: Transport Passage

    Pronar T680P CHAPTER 2 • Unloading of volumetric materials that have been loaded above 1 meter can only be done by tilting the load box backwards. • If the load does not pour from the raised load box, unloading must be stopped immediately.
  • Page 35 CHAPTER 2 Pronar T680P • It is forbidden to leave the machine unsecured. The trailer disconnected from the tractor must be blocked with the parking brake and secured against rolling with wedges or other elements without sharp edges placed under the trailer wheels.
  • Page 36 Pronar T680P CHAPTER 2 sure that all walls and extensions are properly closed. Check if the strapping lines are properly attached. • Before using the trailer always check its technical condition. In particular, check the technical condition of the hitch system, the running gear, the braking system and traffic lights as well as the connecting elements of the hydraulic, pneumatic and electrical systems.
  • Page 37 CHAPTER 2 Pronar T680P FIGURE 2.2. Mounting location for the slow-moving vehicle sign (1) distinguishing sign • A triangular plate for slow moving vehicles should be placed on the rear wall, if the trailer is the last vehicle in the set - Figure (2.2). The triangular plate should be placed in a specially prepared holder riveted to the rear wall of the load box.

  • Page 38: Tires

    Pronar T680P CHAPTER 2 2.1.7 TIRES • When working with tires, the trailer should be immobilized with the parking brake and secured against rolling by placing wedges under the wheels. The wheel can be dismantled only when the trailer is not loaded.
  • Page 39 CHAPTER 2 Pronar T680P • Any modification of the trailer releases PRONAR Narew from any liability for damage or injury. • Climbing the trailer is possible only when the trailer is absolutely stationary and the tractor engine is switched off. Tractor and trailer should be secured with parking brake and wedges should be placed under trailer wheels.
  • Page 40 Pronar T680P CHAPTER 2 • Before welding or electrical work, the trailer should be disconnected from the power supply. The paint coating should be cleaned. The fumes of burning paint are poisonous to humans and animals. Welding work should be carried out in a well-lit and ventilated room.

  • Page 41: Description Of Residual Risk

    2.2 DESCRIPTION OF RESIDUAL RISK Pronar Sp. z o. o. in Narew made every effort to eliminate the risk of an accident. However, there is some residual risk that can lead to an accident and is primarily associated with the following activities: •...

  • Page 42: Information And Warning Stickers

    Pronar T680P CHAPTER 2 • a ban on being on the machine while driving, loading or unloading. 2.3 INFORMATION AND WARNING STICKERS The trailer is marked with information and warning stickers mentioned in table (2.1). The arrangement of symbols is shown in figure (2.3). The machine user is obliged to ensure that the inscriptions, warning and information symbols placed on the trailer are legible throughout the entire period of use.
  • Page 43 CHAPTER 2 Pronar T680P ITEM STICKER MEANING Before starting any servicing or repair work, switch off the tractor engine and remove the ignition key. Secure the tractor cab against unauthorized access. Before starting any servicing or repair work, switch off the tractor engine and remove the ignition key.
  • Page 44 Pronar T680P CHAPTER 2 ITEM STICKER MEANING Danger of being crushed. It is forbidden to carry out repair or maintenance works under a loaded and/or unsupported load box. Caution. Danger of electric shock. When unloading the trailer keep a safe distance from overhead power lines.
  • Page 45 CHAPTER 2 Pronar T680P FIGURE 2.3. Arrangement of information and warning stickers 2.17...
  • Page 46 Pronar T680P CHAPTER 2 2.18...
  • Page 47 CHAPTER CONSTRUCTION AND PRINCIPLE OF OPERATION...

  • Page 48: Technical Characteristics

    Pronar T680P CHAPTER 3 3.1 TECHNICAL CHARACTERISTICS TABLE 3.1. Basic technical data of the T680P trailer CONTENT UNIT DATA Dimensions Total length 7 270 Overall width 2 550 Overall height 3 250 Wheel track 1 900 Internal dimensions of the load box:...

  • Page 49: Chassis

    CHAPTER 3 Pronar T680P force in a given country must be observed. The trailer speed must not, however, be greater than the maximum design speed 40 km/h. 3.2 CHASSIS The trailer chassis consists of the units specified in figure (3.1). The lower frame (1) is a welded structure made of steel sections.

  • Page 50: Load Box

    Pronar T680P CHAPTER 3 FIGURE 3.1 Chassis (1) lower frame, (2) telescopic cylinder, (3) drawbar, (4) turntable frame, (5) wheel axle, (6) turntable, (7) spare wheel basket, (8) wheel chocks, (9 ) parabolic spring, (10) lighting beam, (11) load box support 3.3 LOAD BOX...
  • Page 51 CHAPTER 3 Pronar T680P TABLE 3.1. Load box (1) upper frame, (2) front wall, (3) rear wall, (4) portal side wall, (5) right side wall with extension (6) central post (7) front lock, (8) rear lock, (9) lower ladder, (10) upper ladder,...
  • Page 52 Pronar T680P CHAPTER 3 All walls of the trailer are made of waterproof, laminated plywood with aluminium fittings with rubber seals. As additional equipment, the trailer can be equipped with a balcony (11), a tarpaulin (14), a chute system consisting of side plates (12) and a rear wall chute plate.

  • Page 53: Service Brake

    CHAPTER 3 Pronar T680P 3.4 SERVICE BRAKE The trailer is equipped with one of four types of service system brake: • single conduit pneumatic system - figure (3.4), • double conduit pneumatic system with three-position manual regulator– figure (3.5), • double conduit pneumatic system with ALB automatic regulator, figure (3.6), •...
  • Page 54 Pronar T680P CHAPTER 3 FIGURE 3.3 Single conduit pneumatic installation (1) air tank, (2) control valve, (3) brake force regulator, (4) pneumatic cylinder, (5) hose connector (black), (6) air filter, (7) air tank control connector, (8 ) pneumatic actuator control...
  • Page 55 CHAPTER 3 Pronar T680P FIGURE 3.4 Double conduit pneumatic installation (1) air tank, (2) control valve, (3) brake force regulator, (4) pneumatic actuator, (5) hose connector (red), (6) hose connector (yellow), (7) air filter, ( 8) air tank control joint,...
  • Page 56 Pronar T680P CHAPTER 3 FIGURE 3.5 Double conduit pneumatic installation with ALB (1) air tank, (2) control valve, (3) brake force regulator, (4) pneumatic actuator, (5) hose connector (red), (6) hose connector (yellow), (7) air filter, ( 8) air tank control joint, (9) pneumatic actuator control joint, (10) drain valve, (11) socket (red), (12) socket (yellow) 3.10...
  • Page 57 CHAPTER 3 Pronar T680P FIGURE 3.6 Hydraulic braking system (1) hydraulic cylinder, (2) quick coupler (plug), (3) quick coupler (socket), (4) information sticker Three-band braking force regulator (2) - figure (3.8), adjusts braking force depending on the setting. Switching to the appropriate operating mode is done manually by the machine operator before starting the journey using the lever (4).

  • Page 58: Parking Brake

    Pronar T680P CHAPTER 3 FIGURE 3.7 Tri-band braking force regulator (1) control valve, (2) braking force regulator, (3) trailer brake release button when parking, (4) regulator selection lever, (A) ‘UNLOADED’ position, (B) ‘HALF LOAD’ position, (C) 'FULL LOAD’ position 3.5 PARKING BRAKE The parking brake is used to immobilize the trailer during parking.

  • Page 59: Hydraulic Tipping System

    CHAPTER 3 Pronar T680P FIGURE 3.8 Parking brake (1) brake puller, (2) brake crank mechanism, (3) guide rollers, (4) steel cable 3.6 HYDRAULIC TIPPING SYSTEM The hydraulic tipping system is used for automatic unloading of the trailer by tilting the load box backwards or on sides.
  • Page 60 Pronar T680P CHAPTER 3 FIGURE 3.9 Diagram of the hydraulic tipping system (1) telescopic cylinder, (2) three-way valve, (3) shut-off valve, (4) quick coupler (5) socket, (6) control cable, (7) guide roller, (8), (9) information stickers CAUTION The cut-off valve (3) - figure (3.10) limits the tipping angle of the load box when tilted to the sides and to the rear.

  • Page 61: Electrical Installation, Warning Elements

    CHAPTER 3 Pronar T680P In the trailer, the installation consists of two independent circuits: • circuit (A) - for supplying the hydraulic cylinder of the first trailer, • circuit (B) - to supply the second trailer hydraulic cylinder in case of connecting two trailers to the tractor.
  • Page 62 Pronar T680P CHAPTER 3 FIGURE 3.10 Arrangement of electric and reflective elements (1) seven-pin socket, (2) front position lamp, (3) white reflector, (4) yellow reflector, (5), (6) rear multipurpose lamp, (7), (8) clearance lamp, (9) lamp number plate lighting, (10) reflective triangle...
  • Page 63 CHAPTER 3 Pronar T680P TABLE 3.2. Electrical system schematic diagram Designations according to the table (3.2). 3.17...
  • Page 64 Pronar T680P CHAPTER 3 TABLE 3.2. List of electrical components markings SYMBOL FUNCTION Multifunctional rear right lamp Multifunctional rear left lamp Front seven-pin socket Rear seven-pin socket License plate lighting lamp right License plate lighting lamp left Front right plate lamp...

  • Page 65: Rules Of Use

    CHAPTER RULES OF USE...

  • Page 66: Preparing For Work Before First Use

    Pronar T680P CHAPTER 4 4.1 PREPARING FOR WORK BEFORE FIRST USE The trailer is delivered to the user completely assembled and does not require any additional assembly operations of machine components. The manufacturer ensures that the machine is fully functional, has been checked in accordance with control procedures and is approved for use.

  • Page 67: Technical Inspection Of The Trailer Technical

    CHAPTER 4 Pronar T680P CAUTION Non-adherence to the recommendations contained in the manual or improper use of the trailer may cause damage to the machine. The technical condition of the trailer prior to commissioning must not raise any objections. 4.2 TECHNICAL INSPECTION OF THE TRAILER TECHNICAL When preparing the trailer for daily use, check individual elements according to guidelines presented in table (4.1).

  • Page 68: Connecting To The Tractor

    Pronar T680P CHAPTER 4 REVIEW DESCRIPTION SERVICE ACTIVITIES PERIOD Lubricate the components according According to Lubrication to the „LUBRICATION” guidelines in Table (5.3) the chapter. According to Degree of tightening of road wheel The tightening torque should be in chapter (4.9) nuts accordance with the table (5.6)
  • Page 69 CHAPTER 4 Pronar T680P FIGURE 4.1. Drawbar height setting (1) tension spring, (2) screw tensioner when reversing the tractor, connect the drawbar eye with the appropriate tractor hitch, secure the tractor hitch against undesirable disconnection of the trailer, connect the electric, brake and tipping system cables to the tractor to the...

  • Page 70: Connecting And Disconnecting Of A Second

    Pronar T680P CHAPTER 4 4.4 CONNECTING AND DISCONNECTING OF A SECOND TRAILER The second trailer may only be connected if it is a two-axle trailer and if it meets all the requirements specified in chapter (1.2). Hitching a second trailer with a set requires experience in steering an agricultural tractor with a trailer.
  • Page 71 CHAPTER 4 Pronar T680P FIGURE 4.2. Connecting of the second trailer (1) rear trailer hitch, (2) chain with a cotter pin securing the pin, (3) hitch pin 40 mm, (4) drawbar of the second trailer Disconnecting of the second trailer Immobilize the tractor and trailer with parking brake, Switch off the tractor engine.

  • Page 72: Loading

    Pronar T680P CHAPTER 4 Unlock the coupling bolt on the first trailer. Remove the bolt and drive the tractor away. CAUTION Only two-axle trailers may be connected to the trailer. 4.5 LOADING Before starting loading, make sure that the side walls, rear wall, extensions and the chute slide gate are properly closed and locked.
  • Page 73 CHAPTER 4 Pronar T680P the lever of the closing mechanism (7) of the left front wall is on the front of the trailer - figure (3.2), the lever of the closing mechanism (3) of the left rear wall is located in the rear part of the trailer - figure (4.3),...
  • Page 74 Pronar T680P CHAPTER 4 DANGER Be especially careful due to the risk of crushing the limbs while closing and unlocking the walls. After loading the pallets, close the side walls in the reverse order. FIGURE 4.4. Blocking the left side walls after opening...
  • Page 75 CHAPTER 4 Pronar T680P TABLE 4.2. Approximate volumetric weights of selected loads VOLUMETRIC WEIGHT TYPE OF MATERIAL kg/m Root Crops: raw potatoes 700 - 820 steamed mashed potatoes 850 - 950 dried potatoes 130 - 150 sugar beets - roots...
  • Page 76 Pronar T680P CHAPTER 4 VOLUMETRIC WEIGHT TYPE OF MATERIAL kg/m slag 650 - 750 gravel 1,600 – 1,800 Plant litter and roughage: dry meadow hay on the swath 10 - 18 hay wilted on the swath 15 - 25 hay in a collecting trailer (dry, wilted)
  • Page 77 CHAPTER 4 Pronar T680P VOLUMETRIC WEIGHT TYPE OF MATERIAL kg/m Concentrated feed and compound feed: stored chaff 200 - 225 oil cake 880 – 1,000 dried mince 170 - 185 compound feed 450 - 650 mineral mixtures 1,100 – 1,300...

  • Page 78: Load Transportation

    Pronar T680P CHAPTER 4 VOLUMETRIC WEIGHT TYPE OF MATERIAL kg/m Other: dry soil 1,300 – 1,400 wet soil 1,900 – 2,100 fresh peat 700 - 850 compost soil 250 - 350 Source: „Technologia prac maszynowych w rolnictwie”, PWN, Warsaw 1985 Construction materials can be transported on a trailer provided that the load box is properly prepared.
  • Page 79 CHAPTER 4 Pronar T680P • Make sure that the trailer is correctly connected to the tractor and tractor's hitch is properly secured. • The trailer must not be overloaded, the load must be distributed evenly in such a way that it does not exceed the permissible pressure on the trailer's running axles.

  • Page 80: Unloading

    Pronar T680P CHAPTER 4 • The travel speed should be reduced sufficiently in advance of driving to curves, when driving on uneven or sloping terrain. • When driving, avoid sharp turns, especially on slopes. • It should be remembered that the braking distance of the set increases significantly with the increase in the weight of the transported load and the increase in speed.
  • Page 81 CHAPTER 4 Pronar T680P FIGURE 4.5. Locking of the tipping pins (1) rear left or right front tipping pin, (2) rear right or left front tipping pin, (3) securing cotter Open the wall closures on the side of the trailer to be unloaded. Be careful when opening it as the load may put a lot of pressure on the walls, First, unlock the central locks (2) - see figure (4.3) on the central...

  • Page 82: Unloading Of Cargo Transported On Pallets

    Pronar T680P CHAPTER 4 4.7.2 UNLOADING OF CARGO TRANSPORTED ON PALLETS The trailer is unloaded in the following order: Immobilize the tractor and trailer with parking brake, Roll up the tarpaulin and place it in the holders provided for this purpose,...
  • Page 83 CHAPTER 4 Pronar T680P enables accurate dosing of the load into the packaging (bags, boxes, etc.). The size of the gap opening should be determined by the lever (3). To do this, loosen the locking screw (4), open the valve at the desired height and secure it again with the screw. During unloading, using the chute, the wall locks and extensions must not be opened, and the load box must be lifted slowly and smoothly.

  • Page 84: Disconnecting From The Tractor

    Pronar T680P CHAPTER 4 DANGER Tilting of the load box may only be performed on firm and flat ground. Only original pins with a handle and a safety device should be used. The use of non- original pins may damage the trailer. Tipping pins must be properly locked.

  • Page 85: Use Of Tires

    CHAPTER 4 Pronar T680P Disconnect the hydraulic brake system hoses (applies to trailer version with hydraulic brake system). Secure the cable ends with covers. Insert the plugs into their respective sockets. Unlock the transport hitch and disconnect the trailer drawbar from the tractor hitch and drive the tractor away.
  • Page 86 Pronar T680P CHAPTER 4 • Tire pressure should also be checked during all-day intensive work. It should be taken into account that an increase in tire temperature can increase the pressure by up to 1 bar. With such a rise in temperature and pressure, reduce the load or speed.

  • Page 87: Technical Support

    CHAPTER TECHNICAL SUPPORT...

  • Page 88: Preliminary Information

    Pronar T680P CHAPTER 5 5.1 PRELIMINARY INFORMATION When using the trailer, it is necessary to constantly check the technical condition and perform maintenance procedures that will allow the vehicle to be kept in good technical condition. Therefore, the trailer user is obliged to perform all maintenance and adjustment activities specified by the Manufacturer.

  • Page 89: Pre-Check Of The Brakes Of Driving Axle

    CHAPTER 5 Pronar T680P • brake lining replacement, brake repair, can be performed by specialized workshops. DANGER It is forbidden to use the trailer with inefficient braking system. 5.2.2 PRE-CHECK OF THE BRAKES OF DRIVING AXLE After purchasing the trailer, the user is obliged to thoroughly check the braking system of the trailer axles.
  • Page 90 Pronar T680P CHAPTER 5 5.2.3 CHECKING THE CLEARANCE OF THE AXLE BEARINGS FIGURE 5.1. Hoist support point (1) driving axle, (2) spring, (3) U-bolt Preparatory activities Hitch trailer to tractor, immobilize tractor with parking brake. Place the tractor and trailer on firm and level ground.
  • Page 91 CHAPTER 5 Pronar T680P spring mounting. The recommended support point is marked with an arrow. The jack must be suited to the trailer weight. Checking the clearance of the axle bearings Turn the wheel slowly in two directions to check if the movement is smooth and the wheel rotates without excessive resistance and jams.
  • Page 92 Pronar T680P CHAPTER 5 DANGER Before starting work, read the instructions for the lift and follow the manufacturer's instructions. The lift must stand firmly against the ground and the axle. Ensure that the trailer will not roll when checking the looseness of the axle bearings.
  • Page 93 CHAPTER 5 Pronar T680P FIGURE 5.2. Adjustment of axle bearings (1) hub cover, (2) crown nut, (3) cotter pin The wheel should rotate smoothly, without jams and no noticeable resistance, not from rubbing the shoes against the brake drum. Adjusting of the bearing looseness can only be carried out when the trailer is connected to the tractor and the loading box is empty.
  • Page 94 Pronar T680P CHAPTER 5 Loosen the wheel nuts according to the order given in figure (5.3). Place the jack and raise the trailer. Remove the wheel. Wheel mounting Clean the axle pins and nuts from contamination. Do not lubricate the threads of the nut and stud.
  • Page 95 CHAPTER 5 Pronar T680P FIGURE 5.3. The order of the nuts tightening (1) - (10) order of tightening the nuts, (L) wrench length, (F) user weight Checking wheel axle tightening: • after the first use of the trailer, • after the first trip with a load, •...

  • Page 96: Air Pressure Control, Assessment Of Technical

    Pronar T680P CHAPTER 5 TABLE 5.1 Key arm selection TIGHTENING TORQUE BODY WEIGHT (F) ARM LENGTH (L) [Nm] [kg] 0.30 0.35 0.40 0.45 5.2.6 AIR PRESSURE CONTROL, ASSESSMENT OF TECHNICAL CONDITION OF TIRES AND STEEL WHEELS The tire pressure should be checked after each wheel change, and at least once a month. In the event of intensive use, it is recommended to check the air pressure more often.

  • Page 97: Adjustment Of Mechanical Brakes

    CHAPTER 5 Pronar T680P Pressure control and visual inspection of steel wheels: • every 1 month of use, • every week in case of intensive use, • after changing the wheel. 5.2.7 ADJUSTMENT OF MECHANICAL BRAKES While using the trailer, the drum brake friction linings will wear out. The piston stroke is lengthened and the braking force is reduced when the limit value is exceeded.

  • Page 98: Replacement And Adjustment Of Parking Brake

    Pronar T680P CHAPTER 5 The trailer wheels must brake simultaneously. Brakes adjustment consists in changing the position of the expander arm (1) - figure (5.4), in relation to the expander shaft (2). To do this, turn the adjustment screw (3) in such a direction that the expander lever moves: •...
  • Page 99 CHAPTER 5 Pronar T680P Place the trailer and tractor on a level surface. Loosen the nuts (6) of the clamps cable . Remove cable (3). Lubricate the parking brake crank mechanism and the cable guide pins(4). Install a new cable, adjust cable tension.

  • Page 100: Pneumatic System Service

    Pronar T680P CHAPTER 5 The length of the parking brake cable should be selected so that when the service and parking brake is completely released, the cable is loose and hangs 1-2 cm. Parking brake control and/or adjustment: • every 12 months.

  • Page 101: Tightness Check And Visual Inspection Of The

    CHAPTER 5 Pronar T680P 5.3.2 TIGHTNESS CHECK AND VISUAL INSPECTION OF THE INSTALLATION Checking the tightness of pneumatic systems Hitch trailer to tractor. The tractor and trailer should be immobilized with the parking brake. Additionally, place wedges under the rear wheel of the trailer.

  • Page 102: Cleaning The Air Filters

    Pronar T680P CHAPTER 5 Visual assessment of the system When checking for leaks, pay attention to the technical condition and degree of cleanliness of the system components. Contact of pneumatic conduits, seals etc. with oil, grease, gasoline etc. may damage them or accelerate the aging process. Bent, permanently deformed, cut or frayed wires are only eligible for replacement.
  • Page 103 CHAPTER 5 Pronar T680P FIGURE 5.6. Air filter (1) securing slide, (2) filter cover DANGER Before removing the filter, reduce the pressure in the supply line. When removing the filter slide, hold the cover with the other hand. Point the filter cover away from you.

  • Page 104: Air Tank Drainage

    Pronar T680P CHAPTER 5 Cleaning the air filter (filters), • every 3 months of use. 5.3.4 AIR TANK DRAINAGE FIGURE 5.7. Air tank drainage (1) drain valve, (2) air tank The scope of service activities Deflect the drain valve stem (1) located at the bottom of the tank (2) - the tank is located at the rear of the turntable frame.

  • Page 105: Cleaning The Drainage Valve

    CHAPTER 5 Pronar T680P Air tank drainage: • each week of use. 5.3.5 CLEANING THE DRAINAGE VALVE DANGER Bleed the air tank before removing the drain valve. The scope of service activities Fully reduce the pressure in the air reservoir.

  • Page 106: Cleaning And Maintaining Pneumatic Connectors

    Pronar T680P CHAPTER 5 5.3.6 CLEANING AND MAINTAINING PNEUMATIC CONNECTORS AND SOCKETS DANGER Faulty and dirty trailer connections can cause the braking system to malfunction. A damaged connector body or socket for connecting a second trailer qualifies them for replacement. In the event of damage to the cover or gasket, replace these elements with new, functional ones.

  • Page 107: Checking The Thightness Of The Hydraulic System

    CHAPTER 5 Pronar T680P • checking the technical condition of the hydraulic connectors. DANGER It is forbidden to perform tipping with a faulty hydraulic tipping system. It is forbidden to use the trailer with a defective hydraulic brake system. 5.4.2...

  • Page 108: Checking The Technical Condition Of The Hydraulic

    Pronar T680P CHAPTER 5 Checking for leaks: • after the first week of use, • every 12 months of use. 5.4.3 CHECKING THE TECHNICAL CONDITION OF THE HYDRAULIC CONNECTORS AND SOCKETS Hydraulic connections and sockets intended for connecting a second trailer must be technically sound and kept clean.

  • Page 109: Electrical System Service And Warning

    CHAPTER 5 Pronar T680P 5.5 ELECTRICAL SYSTEM SERVICE AND WARNING ELEMENTS 5.5.1 PRELIMINARY INFORMATION Work related to the repair, replacement or regeneration of electrical installation components should be entrusted to specialized workshops that have appropriate technologies and qualifications to perform this type of work.

  • Page 110: Replacement Of Bulbs

    Pronar T680P CHAPTER 5 Electrical system check: • each time when connecting the trailer. ADVICE Before travelling, make sure that all lamps and reflectors are clean. 5.5.2 REPLACEMENT OF BULBS The bulbs are presented in table (5.2). All lamp shades of lighting lamps are mounted with screws and there is no need to disassemble the entire lamp or trailer components.

  • Page 111: Lubrication Of The Trailer

    CHAPTER 5 Pronar T680P 5.6 LUBRICATION OF THE TRAILER TABLE 5.3 Trailer lubrication schedule ITEM LUBRICATION POINT Hub bearings Drawbar eye Turntable Crank shaft bushing in the drum hub Spring leaves Spring surfaces Tipping cylinder seats and cylinder sling Ball bearing of the tipping cylinder...
  • Page 112 Pronar T680P CHAPTER 5 ITEM LUBRICATION POINT Wall locks on the left Front locking mechanism pin Rear locking mechanism pin Bolts and wall locks Parking brake guide roller pins Parking brake mechanism lubrication intervals - M month, D - day, (1) - not shown in the picture TABLE 5.4...
  • Page 113 CHAPTER 5 Pronar T680P moisture between individual leaves of the spring. To lubricate the space between the blades, use aerosol formulations that have generally available lubricating and anti-corrosive properties, the outer surface should be smeared with a very thin layer of lithium or calcium grease.
  • Page 114 Pronar T680P CHAPTER 5 FIGURE 5.8. Trailer lubrication points, part 1 5.28...
  • Page 115 CHAPTER 5 Pronar T680P FIGURE 5.9. Trailer lubrication points, part 2 5.29...

  • Page 116: Consumables

    Pronar T680P CHAPTER 5 5.7 CONSUMABLES 5.7.1 HYDRAULIC OIL It is absolutely necessary to observe that the oil in the trailer's hydraulic system and the tractor's hydraulic system must be of the same type. If different types of oil are used, make sure that both hydraulic means can be mixed together.

  • Page 117: Lubricants

    CHAPTER 5 Pronar T680P 5.7.2 LUBRICANTS For heavily loaded parts, it is recommended to use lithium grease with the addition of molybdenum disulphide (MOS ) or graphite. For less loaded components, it is recommended to use general-purpose machine greases that contain anti-corrosive additives and are highly resistant to water washout.
  • Page 118 Pronar T680P CHAPTER 5 • Do not direct the water jet directly at the elements of the installation and equipment of the trailer, i.e. control valve, braking force regulator, brake cylinders, hydraulic cylinders, pneumatic, electric and hydraulic plugs, lights, electrical connectors, information and warning stickers, rating plate, cable connectors, points lubricating trailers, etc.

  • Page 119: Storage

    CHAPTER 5 Pronar T680P • Washing and drying the trailer must take place at an ambient temperature above • After washing and drying the trailer, lubricate all control points, regardless of the period of the last treatment. 5.9 STORAGE • It is recommended that the trailer be stored indoors or under a roof.

  • Page 120: Tightening Torque For Nut And Bolt

    Pronar T680P CHAPTER 5 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS During maintenance and repair work, apply appropriate tightening torques to screw connections, unless other tightening parameters are given. Recommended tightening torques for the most commonly used bolted connections are shown in the table below. The given values apply to non-lubricated steel bolts.
  • Page 121 CHAPTER 5 Pronar T680P FIGURE 5.10. Metric thread screw (1) strength class, (d) thread diameter ADVICE The hydraulic hoses should be tightened with a torque of 50 - 70 Nm. 5.35...

  • Page 122: Troubleshooting

    Pronar T680P CHAPTER 5 5.11 TROUBLESHOOTING TABLE 5.7 Faults and how to remove them FAULT CAUSE REMOVAL METHOD Brake system lines not Connect the brake lines (applies connected to pneumatic system). Parking brake applied Release the parking brake. Pneumatic connection lines Replace.
  • Page 123 CHAPTER 5 Pronar T680P FAULT CAUSE REMOVAL METHOD change the oil in the tractor and/or trailer Insufficient tractor hydraulic Check the hydraulic pump on the pump performance, tractor tractor. hydraulic pump defective. Check the cylinder piston rod (bending, corrosion), check the...
  • Page 124 Pronar T680P CHAPTER 5 5.38...
  • Page 125 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
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  • Page 127 APPENDIX A Tire size TYPE OF TRAILER FRONT / REAR AXLE T680P 385 / 65 R22.5 18PR - disc wheel 11.75 x 22.5’’ ET=0...