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PRONAR T679 Operator's Manual

Agricultural trailer
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TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
ISSUE 3A-03-2012
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, WOJ. PODLASKIE
tel.:
fax:
OPERATOR'S MANUAL
AGRICULTURAL TRAILER
PRONAR T679
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO 64N-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 T679

  • 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 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 T679. If the information contained 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

    CONTENTS 1 BASIC INFORMATION IDENTIFICATION 1.1.1 TRAILER IDENTIFICATION 1.1.2 AXLE IDENTIFICATION 1.1.3 LIST OF SERIAL NUMBERS INTENDED USE EQUIPMENT TERMS & CONDITIONS OF WARRANTY 1.10 TRANSPORT 1.11 1.5.1 TRANSPORT ON VEHICLE 1.12 1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.14 ENVIRONMENTAL HAZARDS 1.14 WITHDRAWAL FROM USE 1.15...
  • Page 8 3 DESIGN AND OPERATION TECHNICAL SPECIFICATION TRAILER CONSTRUCTION 3.2.1 CHASSIS 3.2.2 LOAD BOX 3.2.3 MAIN BRAKE 3.2.4 HYDRAULIC TIPPING SYSTEM 3.12 3.2.5 SUPPORT HYDRAULIC SYSTEM 3.14 3.2.6 TAILGATE HYDRAULIC SYSTEM 3.17 3.2.7 PARKING BRAKE 3.18 3.2.8 LIGHTING SYSTEM 3.19 4 CORRECT USE PREPARING FOR WORK BEFORE THE FIRST USE 4.1.1 CHECKING THE TRAILER AFTER DELIVERY 4.1.2 PREPARING THE TRAILER FOR THE FIRST HITCHING TO...
  • Page 9 5.2.2 INITIAL INSPECTION OF AXLE BRAKES 5.2.3 CHECKING BRAKE SHOE LININGS FOR WEAR 5.2.4 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS 5.2.5 ADJUSTMENT OF PLAY OF WHEEL AXLE BEARINGS 5.2.6 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING 5.2.7 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS 5.11 5.2.8 ADJUSTMENT OF MECHANICAL BRAKES...
  • Page 10 TRAILER LUBRICATION 5.28 CONSUMABLES 5.32 5.7.1 HYDRAULIC OIL 5.32 5.7.2 LUBRICANTS 5.33 CLEANING THE TRAILER 5.34 STORAGE 5.35 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.36 5.11 INSTALLATION AND DISASSEMBLY OF THE FRAME AND TARPAULIN COVER 5.37 5.12 ADJUSTMENT OF DRAWBAR POSITION 5.39 5.13 TROUBLESHOOTING 5.41...

  • Page 11: Basic Information

    SECTION BASIC INFORMATION...

  • Page 12: Identification

    Pronar T679 SECTION 1 1.1 IDENTIFICATION 1.1.1 TRAILER IDENTIFICATION FIGURE 1.1 Location of the data plate and serial number (1) data plate, (2) serial number The trailer is marked with the data plate (1), and the factory number (2) located on a gold painted rectangle.

  • Page 13: Axle Identification

    SECTION 1 Pronar T679 TABLE 1.1 Markings on data plate ITEM MARKING General description and purpose Symbol / type of trailer Trailer's year of manufacture Seventeen digit vehicle identification number (VIN) Official certificate number Tare weight Maximum gross weight Carrying capacity...

  • Page 14: List Of Serial Numbers

    Pronar T679 SECTION 1 FIGURE 1.2 Location of the axle data plate (1) axle, (2) data plate 1.1.3 LIST OF SERIAL NUMBERS 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: Intended Use

    SECTION 1 Pronar T679 1.2 INTENDED USE The trailer is designed for transport of harvested crops and agricultural products as well as loose, bulk and long load materials at the farm and on public roads. It is acceptable to transport construction materials, mineral fertilizers and other loads, if fulfilling conditions indicated in section 4.
  • Page 16 Pronar T679 SECTION 1 Using it as intended also involves all actions connected with the safe and proper operation and maintenance of the machine. Due to the above, the user is obliged to: • carefully read the OPERATOR'S MANUAL of the trailer and the WARRANTY BOOK and conform with the recommendations contained in these documents, •...
  • Page 17 SECTION 1 Pronar T679 TABLE 1.2 Requirements for agricultural tractor CONTENTS UNIT REQUIREMENTS Brake system - sockets Single conduit pneumatic system according to ISO 1728 Double conduit pneumatic system according to ISO 1728 Hydraulic system according to ISO 7421-1 Maximum system pressure...

  • Page 18: Equipment

    Pronar T679 SECTION 1 TABLE 1.3 Requirements for second trailer CONTENTS UNIT REQUIREMENTS Maximum gross weight 16,000 Brake system - connectors Single conduit pneumatic system coupler compliant with ISO 1728 Double conduit pneumatic system coupler compliant with ISO 1728 Hydraulic system...
  • Page 19 SECTION 1 Pronar T679 TABLE 1.4 Trailer's equipment EQUIPMENT • Operator`s Manual • Warranty Book • Connection lead for the electrical system • Wheel chocks • Hydraulic straight support • Single conduit pneumatic system without rear connector • Single conduit pneumatic system with rear connector •...

  • Page 20: Terms & Conditions Of Warranty

    Reflective warning triangle 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 21: Transport

    SECTION 1 Pronar T679 • bearings. The warranty service only applies to such cases as: mechanical damage which is not the user's fault, factory defects of parts, etc. In the event of damage arising from: • mechanical damage which is the user's fault, damage caused by road accidents, •...

  • Page 22: Transport On Vehicle

    Pronar T679 SECTION 1 1.5.1 TRANSPORT ON VEHICLE Loading and unloading of trailer from vehicle shall be conducted using loading ramp with the aid of an agricultural tractor. During work, adhere to the general principles of occupational health and safety (OHS) applicable to reloading work. Persons operating reloading equipment must have the qualifications required to operate these machines.
  • Page 23 SECTION 1 Pronar T679 ATTENTION 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: Independent Transport By The User

    Pronar T679 SECTION 1 DANGER Incorrect use of securing measures may cause an accident. 1.5.2 INDEPENDENT TRANSPORT BY THE USER If a purchased trailer is transported by the user, the user must read the Operator's Manual of the trailer and adhere to the recommendations contained therein. Transport of the trailer by the user involves towing the trailer with own agricultural tractor to destination.

  • Page 25: Withdrawal From Use

    SECTION 1 Pronar T679 Used oil or oil unsuitable for further use due to loss of its properties should be stored in its original packaging in the conditions described above. Waste oil should be taken to the appropriate facility dealing with the re-use of this type of waste. Waste code: 13 01 10.
  • Page 26 Pronar T679 SECTION 1 1.16...

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Basic Safety Rules

    Pronar T679 SECTION 2 2.1 BASIC SAFETY RULES 2.1.1 USE OF TRAILER • Before using the machine, the user must carefully read this Operator's Manual and the WARRANTY BOOK. When operating the machine, the operator must comply with all recommendations contained in the Operator's Manual.

  • Page 29: Hitching And Unhitching From Tractor

    SECTION 2 Pronar T679 them against falling. The above procedure should be performed by at least two persons. • In the final phase of folding the tarpaulin cover, at all times hold with one hand the top of the front frame or other permanent structural element. Non-compliance with this rule can put the user at risk of falling.

  • Page 30: Hydraulic System And Pneumatic System

    Pronar T679 SECTION 2 • Before hitching the trailer check that both machines are in good technical condition. • After completed hitching of the trailer check the safety of the hitch. • Be especially careful when hitching the machine. • When hitching, there must be nobody between the trailers. Person assisting in hitching the machines should stand outside the area of danger and be visible to the tractor driver at all times.

  • Page 31: Loading And Unloading

    SECTION 2 Pronar T679 • 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. Replacement containers must be clearly marked and appropriately stored.

  • Page 32: Transporting The Machine

    Pronar T679 SECTION 2 • Incorrect load distribution and overloading the machine may cause the trailer to tip over or cause damage to its components. • Do NOT go or place hand between open tailgate and load box. • If the load does not pour from the raised load box immediately cease unloading.
  • Page 33 SECTION 2 Pronar T679 • Chocks (1) should be placed only under one wheel (one in front of the wheel, the second behind the wheel - figure (2.1)). • Do NOT move off or drive when load box is raised.
  • Page 34 Pronar T679 SECTION 2 • While driving on public roads, the trailer and the tractor must be fitted with a certified or authorised reflective warning triangle. • Periodically drain water from the air tanks in pneumatic system. During frosts, freezing water may cause damage to pneumatic system components.

  • Page 35: Tyres

    SECTION 2 Pronar T679 • If the trailer is the last vehicle in the group, a slow-moving vehicle warning sign should be placed on the trailer's rear load box wall - figure (2.2). The warning sign (1) should be attached using the specifically prepared holder (2), riveted to the rear wall of the load box.

  • Page 36: Maintenance

    Pronar T679 SECTION 2 2.1.8 MAINTENANCE • During the warranty period, any repairs may only be made by the Warranty Service authorised by the Manufacturer. After the expiry of the warranty period it is recommended that possible repairs to the trailer be performed by specialised workshops.
  • Page 37 SECTION 2 Pronar T679 immobilized with parking brake and chocks should be placed under the trailer wheels. Ensure that unauthorised persons do not have access to the tractor cab. • During maintenance or repair work, the trailer may be unhitched from tractor, but it must be secured with chocks and parking brake.

  • Page 38: Residual Risk

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

  • Page 39: 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 40 Pronar T679 SECTION 2 DECAL MEANING Caution! Before starting work, carefully read the Operator's Manual. Grease the trailer according to the recommendations in the Operator's Manual Regularly check if the nuts and bolts fixing the wheels and other components are properly tightened.
  • Page 41 SECTION 2 Pronar T679 DECAL MEANING Caution! Danger of electric shock. Keep a safe distance from overhead electric power lines during unloading. Danger of crushing Do NOT perform any maintenance or repairs on the load box that is loaded, raised or not supported.
  • Page 42 Pronar T679 SECTION 2 DECAL MEANING Air pressure in the tyres. Permissible vehicle speed Positions of control valve controlling work of hydraulic tipping system (1 or 2 trailers). Conduit supplying hydraulic brake system. Conduit supplying hydraulic tipping system. Supply conduit of the shear...
  • Page 43 SECTION 2 Pronar T679 DECAL MEANING Supply conduit of tailgate's hydraulic system (opening) – pressure value should be adapted to tyres Numbers in the item column correspond to labels in figure (2.3) Decal (13) is placed near the hydraulic valve. Decals (14)-(20) are placed on the hydraulic conduits.
  • Page 44 Pronar T679 SECTION 2 FIGURE 2.3 Locations of information and warning decals 2.18...

  • Page 45: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 46: Technical Specification

    Pronar T679 SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical specification CONTENTS UNIT T679 Trailer dimensions Total length 6,259 Total width 2,550 Total height 2,866 Internal load box dimensions Length 4,500 Width (front) 2,200 Width (rear) 2,250 Height 1 000 + 580...

  • Page 47: Trailer Construction

    SECTION 3 Pronar T679 3.2 TRAILER CONSTRUCTION 3.2.1 CHASSIS The trailer chassis consists of the subassemblies indicated in figure (3.1). Lower frame (1) is a structure welded from steel sections. The main support elements of the frame are two longitudinal members connected with crossbars. In the middle section there are sockets (5) used for mounting the tipping hydraulic cylinder.
  • Page 48 Pronar T679 SECTION 3 FIGURE 3.1 Trailer chassis (1) lower frame, (2) shaft, (3) shear type support, (4) wheel chocks, (5) tipping cylinder suspension seat , (6) load box support, (7) lights support beam, (8) wheel axle , (9) shock...

  • Page 49: Load Box

    SECTION 3 Pronar T679 3.2.2 LOAD BOX FIGURE 3.2 Load box (1) load box, (2) wall extensions 580 mm, (3) wing of the tailgate, (4) fenced platform (option), (5) lower ladder, (6) wall extension ladder...
  • Page 50 Pronar T679 SECTION 3 The trailer load box (1) is a welded structure made from steel plate and shapes. – figure (3.2). To ensure smooth unloading it is in a shape of a cone. The load box is mounted on the lower frame (figure) (3.1)).

  • Page 51: Main Brake

    SECTION 3 Pronar T679 The trailer can be optionally equipped with 580mm wall extensions with mesh in the front extension. 3.2.3 MAIN BRAKE The trailer is equipped with one of four types of main brake: • single conduit pneumatic system with a three position regulator, figure (3.4), •...
  • Page 52 Pronar T679 SECTION 3 FIGURE 3.4 Design and diagram of the single conduit pneumatic braking system (1) air tank, (2) control valve, (3) manual braking force regulator, (4) pneumatic cylinder, (5) conduit connector (black), (6) air filter, (7) air tank control connector, (8) pneumatic...
  • Page 53 SECTION 3 Pronar T679 FIGURE 3.5 Design and diagram of the double conduit pneumatic braking system (1) air tank, (2) control valve, (3) manual brake force regulator, (4) pneumatic cylinder, (5) conduit connector (red), (6) conduit connector (yellow), (7) air filter, (8) air tank control connector, (9) pneumatic cylinder control connector, (10) drain valve, (11) socket (red) - option, (12) socket (yellow) - option, (13) relay valve.
  • Page 54 Pronar T679 SECTION 3 FIGURE 3.6 Design and diagram of the double conduit pneumatic braking systemwith an automatic regulator (1) air tank, (2) control valve, (3) automatic brake force regulator, (4) pneumatic cylinder, (5) conduit connector (red), (6) conduit connector (yellow), (7) air filter, (8) air tank control...
  • Page 55 SECTION 3 Pronar T679 FIGURE 3.7 Design and diagram of hydraulic braking system (1) hydraulic cylinder, (2) hydraulic quick coupler, (3) hydraulic socket, (4) information decal Three-step braking force regulator (2) - figure (3.8) adjusts braking force depending on setting. Switching to a suitable working mode is done manually by the machine operator using the lever (4) prior to moving off.

  • Page 56: Hydraulic Tipping System

    Pronar T679 SECTION 3 FIGURE 3.8 Control valve and braking force regulator (1) control valve, (2) braking force regulator, (3) trailer parking brake release button, (4) work selection regulator lever, (A) position "NO LOAD”, (B) position "HALF LOAD”, (C) position "FULL LOAD”...
  • Page 57 SECTION 3 Pronar T679 FIGURE 3.9 Hydraulic tipping system design and diagram (1) telescopic cylinder, (2) three-way valve, (3) cut-off valve, (4) quick coupler, (5) socket, (6) control cable, (7) guide roller, (8), (9) information decal Three-way valve (2) – figure (3.9) activates these circuits. This valve's lever can be placed in two positions: •...

  • Page 58: Support Hydraulic System

    Pronar T679 SECTION 3 On the connection conduit, in the vicinity of plug (4), there is a decal (8) identifying the supply conduit of the hydraulic tipping system. ATTENTION Cut-off valve (3) – figure (3.9) limits the tipping angle of the load box when tipped to the rear.
  • Page 59 SECTION 3 Pronar T679 FIGURE 3.10 Design and diagram of the hydraulic system of the straight support (1) hydraulic support, (2) quick coupler, (3) valve, (4), (5) information decals The hydraulic system of the support is filled with L-HL32 Lotos hydraulic oil.
  • Page 60 Pronar T679 SECTION 3 FIGURE 3.11 Design and diagram of the shear type support hydraulic system return conduit, supply conduit, shear type support, cylinder, (5) - (8) information decals 3.16...

  • Page 61: Tailgate Hydraulic System

    SECTION 3 Pronar T679 3.2.6 TAILGATE HYDRAULIC SYSTEM FIGURE 3.12 Design and diagram of the tailgate hydraulic system (1) hydraulic cylinder, (2) supply conduit, (3) return conduit, (4) locking hook, (5) tailgate wing Tailgate hydraulic system is used to raise and lower the trailer tailgate and control the operation of locking hooks (4).

  • Page 62: Parking Brake

    Pronar T679 SECTION 3 The hydraulic system is supplied with oil from the tractor external hydraulic system. Through hydraulic conduits (2) terminated with quick-couplers pressurised oil is fed to hydraulic cylinders (1), which open or close the tailgate. Tailgate is controlled from the tractor cab by means of the manifold lever of the tractor's external hydraulic system.

  • Page 63: Lighting System

    SECTION 3 Pronar T679 member of the lower frame on the front of the trailer. Wheel axle expander arm levers (1) are connected to the lever (5) by means of cable II (4) through guide rollers (6). Lever (5) is connected to the brake crank mechanism (2) by means of steel cable I (3).
  • Page 64 Pronar T679 SECTION 3 FIGURE 3.15 Positioning of electrical components and reflectors at the back (1) rear left lamp assembly, (2) rear right lamp assembly (3) license plate light, (4) reflective warning triangle, (5) 7-pin socket (6) rear clearance lamp, (7) side parking light...
  • Page 65 SECTION 3 Pronar T679 FIGURE 3.16 Electrical system schematic diagram, the versions without the side lamps Marking according to table (3.2), (3.3) and (3.4) 3.21...
  • Page 66 Pronar T679 SECTION 3 TABLE 3.2 List of electrical component markings SYMBOL NAME 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 right parking light...
  • Page 67 SECTION 3 Pronar T679 TABLE 3.4 Lead colour marking MARKING COLOUR White Black Blue Orange Green Black and green Pink 3.23...
  • Page 68 Pronar T679 SECTION 3 3.24...

  • Page 69: Correct Use

    SECTION CORRECT USE...

  • Page 70: Preparing For Work Before The First Use

    Pronar T679 SECTION 4 4.1 PREPARING FOR WORK BEFORE THE 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 normal use. This does not release the user from an obligation to check the machine's condition after delivery and before first use.

  • Page 71: Preparing The Trailer For The First Hitching To

    SECTION 4 Pronar T679 4.1.2 PREPARING THE TRAILER FOR THE 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 and bolts fixing the wheels are properly tightened.

  • Page 72: Hitching And Unhitching The Trailer From Tractor

    Pronar T679 SECTION 4 If during test run worrying symptoms occur such as: • noise and abnormal sounds originating from the abrasion of moving elements of the trailer design, • hydraulic oil leak, • pressure drop in braking system, • incorrect operation of hydraulic and/or pneumatic cylinders, or other faults, find the cause of the problem.
  • Page 73 SECTION 4 Pronar T679 Reverse tractor and connect the conduit marked with decal (17)– table (2.1) (straight hydraulic support). If the trailer is equipped with shear type hydraulic support, connect the hydraulic conduits marked with decals (18) and (19) - Table(2.1).
  • Page 74 Pronar T679 SECTION 4 Hydraulic brake system conduit is marked with information decal (13) – table (2.1). Connect hydraulic tipping system conduit. Hydraulic tipping system conduit is marked with information decal (14) – table (2.1). Connect main lead supplying electrical lighting system.
  • Page 75 SECTION 4 Pronar T679 Unhitching the trailer In order to unhitch the trailer from the tractor follow these steps. Immobilise tractor and trailer with parking brake. Place chocks under trailer wheel. Wheel chocks shall be so placed that one is in front of the wheel and the second is behind wheel of rear axle - see section 2.

  • Page 76: Hitching And Unhitching The Second Trailer

    Pronar T679 SECTION 4 Unlock tractor hitch and disconnect trailer drawbar from tractor hitch and drive tractor away. DANGER Exercise caution when unhitching the trailer from the tractor. Ensure good visibility. Unless it is necessary, do not go between tractor and trailer.
  • Page 77 SECTION 4 Pronar T679 If the trailer is equipped with an automatic rear hitch, ensure that the hitching operation is completed and that drawbar eye of the second trailer is secured. FIGURE 4.1 Coupling second trailer (1) hitch body, (2) the second trailer drawbar, (3) hitch pin, (4) chain with locking cotter pin Insert drawbar pin and securing cotter pin.

  • Page 78: Loading And Securing Load

    Pronar T679 SECTION 4 Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab. Disconnect lines of pneumatic, hydraulic and electrical systems according to instructions contained in section (4.2). Unlock the pin of the hitch of the first trailer. Remove the pin and drive tractor away.
  • Page 79 SECTION 4 Pronar T679 ATTENTION Always try to distribute the load uniformly in the load box. Do NOT exceed the trailer's maximum carrying capacity. Due to the various density of materials, using the total load box capacity may lead to exceeding permissible carrying capacity of the trailer.
  • Page 80 Pronar T679 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m wet sand 1 700 – 2 050 solid bricks 1 500 – 2 100 hollow bricks 1 000 – 1 200 stones 1,500 – 2,200 soft wood 300 - 450...
  • Page 81 SECTION 4 Pronar T679 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m baled straw (heavily crushed) 110 - 150 cereal mass in round bales 20 - 25 cut cereal mass in bulk trailer 35 - 75 cut cereal mass in gathering trailer...
  • Page 82 Pronar T679 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m barley 600 - 750 clover 700 - 800 grass 360 - 500 maize 700 - 850 wheat 720 - 830 oil seed rape 600 - 750 linseed 640 - 750...
  • Page 83 SECTION 4 Pronar T679 Bulk materials Loading bulk materials is normally conducted with the use of loaders or conveyors and possibly loading manually. Do not load bulk materials to a height greater than that of side walls or extensions. On completion of loading, the load should be evenly spread over the whole surface of the load box.
  • Page 84 Pronar T679 SECTION 4 condition that they are transported in the appropriate packaging and in quantities envisaged by the ADR agreement. DANGER If it is necessary to carry permitted hazardous materials, acquaint yourself with the regulations concerning transport of hazardous materials in force in the given country and also the regulations of the ADR agreement.

  • Page 85: Transporting Load

    SECTION 4 Pronar T679 DANGER If there is a danger of load packaging moving, do NOT transport this type of material. A moving load constitutes a serious hazard during travel for the tractor driver and other road users. Overloading the trailer, erroneous loading and securing of the load is the most frequent cause of accidents during transport.
  • Page 86 Pronar T679 SECTION 4 • The trailer must not be overloaded, loads must be uniformly distributed so that the maximum permissible axle loads are not exceeded. The trailer's maximum carrying capacity must not be exceeded as this can damage the trailer and pose a risk to the operator or other road users.

  • Page 87: Unloading

    SECTION 4 Pronar T679 • Speed must be sufficiently reduced before making a turn or driving on an uneven road or a slope. • When driving, avoid sharp turns especially on slopes. • Please note that the braking distance of the tractor and trailer combination is substantially increased at higher speeds and loads.
  • Page 88 Pronar T679 SECTION 4 close the tailgate by operating the suitable hydraulic circuit in the tractor, Tailgate must be closed until it is secured by securing hooks, before moving off make sure that the tailgate is properly locked. ATTENTION When a tailgate is tightly closed, that securing hooks must fully engage the rear gate securing pin.

  • Page 89: Proper Use And Maintenance Of Tyres

    SECTION 4 Pronar T679 FIGURE 4.2 Chute (1) chute slide gate, (2) chute, (3) lever, (4) locking bolt While unloading high-volume materials be especially careful. Do NOT tip load box on uneven or wet ground and move and jerk trailer during unloading. Bulky materials are normally difficult to unload.
  • Page 90 Pronar T679 SECTION 4 • Inspect tightness of nuts after the first use of trailer, after the first travel under load and then every 6 months of use or every 25,000 km. In the event of intensive work, check the nut tightening at least every 10,000 km. The inspection should be repeated individually if a wheel has been removed from the wheel axle.

  • Page 91: Maintenance

    SECTION MAINTENANCE...

  • Page 92: Preliminary Information

    Pronar T679 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: Initial Inspection Of Axle Brakes

    SECTION 5 Pronar T679 may be performed by specialist workshops. DANGER Do not use the trailer when brake system is out of order. 5.2.2 INITIAL INSPECTION OF AXLE BRAKES After purchasing trailer, the user is responsible for general checking of brake system of trailer axle.
  • Page 94 Pronar T679 SECTION 5 ATTENTION Minimum thickness of the trailer brake linings is 5 mm. Check brake shoe linings for wear through the inspection opening (2) – see Figure (5.1). Check brake shoe linings for wear: • every 3 months, •...

  • Page 95: Checking Wheel Axle Bearings For Slackness

    SECTION 5 Pronar T679 5.2.4 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5.2 Lifting jack support point (1) wheel axle, (2) U bolt Preparation procedures Hitch trailer to tractor, braking tractor with parking brake. Park tractor and trailer on hard level ground.
  • Page 96 Pronar T679 SECTION 5 Turning the wheel slowly in both directions check that movement is smooth and that the wheel rotates without excessive resistance. Turn the wheel so that it rotates very quickly, check that the bearing does not make any unusual sounds.

  • Page 97: Adjustment Of Play Of Wheel Axle Bearings

    SECTION 5 Pronar T679 DANGER Before commencing work, the user must read the instructions for lifting jack and adhere to the manufacturer's instructions. The lifting jack must be stably supported on the ground and so must the axle. Ensure that trailer shall not move during inspection of axle bearing slackness.

  • Page 98: Mounting And Dismounting Wheel, Inspection Of

    Pronar T679 SECTION 5 FIGURE 5.3 Adjustment of wheel axle bearings (1) hub cover, (2) castellated nut, (3) cotter pin The wheel should turn smoothly without stiffness or detectable resistance not originating from abrasion of brake shoes in brake drum. Adjustment of bearing slackness may only be conducted when the trailer is hitched to tractor and the load box is empty.
  • Page 99 SECTION 5 Pronar T679 Loosen wheel nuts according to sequence shown in figure (5.4). Place a lifting jack and raise the trailer to a sufficient height so that the wheel to be replaced does not touch the ground. Dismount wheel.
  • Page 100 Pronar T679 SECTION 5 FIGURE 5.4 Sequence of tightening nuts, axles with 10 M22x1.5 pins (1) - (10) sequence of nut tightening, (L) spanner length, (F) user weight ATTENTION Wheel nuts must not be tightened with impact wrench because of danger of exceeding permissible tightening torque, the consequence of which may be breaking the connection thread or breaking off the hub pin.

  • Page 101: Checking Air Pressure In Tyres, Evaluating

    SECTION 5 Pronar T679 Check the wheel nut tightening: • after first use, • after first travel with load, • after travelling the first 1,000 km, • every six months of use or every 25,000 km. In the event of intensive work check the nut tightening at least every 10,000 km. The above actions should be repeated individually if a wheel has been removed from the wheel axle.

  • Page 102: Adjustment Of Mechanical Brakes

    Pronar T679 SECTION 5 Checking air pressure in tyres and visual inspection of steel wheels: • every 1 month of use, • if needed. 5.2.8 ADJUSTMENT OF MECHANICAL BRAKES During trailer operation drum brake linings are subjected to wear. Piston stroke extends and, after exceeding the limit value, braking force declines.
  • Page 103 SECTION 5 Pronar T679 expander arms may not be supported on any structural elements, because insufficient withdrawal of a piston ram may cause abrasion of brake shoes in drum and result in overheating the brakes. Expander arms must be positioned in parallel with regard to each other at full braking.

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

    Pronar T679 SECTION 5 5.2.9 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE TENSION. FIGURE 5.6 Adjustment of parking brake cable tension (1) brake crank mechanism, (2) brake cable I, (3) brake cable II (4) brake lever, (5) U-shaped...
  • Page 105 SECTION 5 Pronar T679 Remove the pins of the lever (4) and crank mechanism (1), remove the shackle (6). Dismantle handbrake cables (2) and (3). Clean parking brake components, lubricate parking brake crank mechanism and pins of cable guide rollers.

  • Page 106: Pneumatic System Maintenance

    Pronar T679 SECTION 5 Tighten cable and tighten clamps. Length of parking brake cable (2) should be so selected that at total release of working and parking brake the cables would be loose and hanging by 1 - 2 cm compared to fully tensioned cables.

  • Page 107: Checking Air Tightness And Visual Inspection Of

    SECTION 5 Pronar T679 • cleaning drain valve, • cleaning and maintaining pneumatic conduit connections, • replacement of the pneumatic conduit. DANGER Do not use the trailer when brake system is out of order. 5.3.2 CHECKING AIR TIGHTNESS AND VISUAL INSPECTION OF PNEUMATIC...
  • Page 108 Pronar T679 SECTION 5 appear at connections then tighten the connections. If air continues to escape, replace connection components or seals with new ones. Check system tightness: • after travelling the first 1,000 km, • each time after making repairs or changing system components, •...

  • Page 109: Cleaning The Air Filters

    SECTION 5 Pronar T679 5.3.3 CLEANING THE AIR FILTERS FIGURE 5.8 Air filter (1) securing slide lock, (2) air filter cover DANGER Before proceeding to dismantle filter, reduce pressure in supply conduit. While dismounting the filter slide gate, hold the cover with the other hand. Stand away from filter cover vertical direction.

  • Page 110: Draining Water From Air Tank

    Pronar T679 SECTION 5 Hold the filter cover (2) with the other hand. After removing slide lock, the cover is pushed off by the spring located in the filter housing. The filter element and the filter body should be carefully cleaned and blown through with compressed air.

  • Page 111: Cleaning The Drain Valve

    SECTION 5 Pronar T679 The compressed air in the tank causes the removal of water to the exterior. Released valve stem should automatically close and stop flow of air from the tank. If the valve stem resists returning to its position, then the whole drain valve must be unscrewed and cleaned or replaced (if it is damaged) - see section 5.3.5.

  • Page 112: Cleaning And Maintaining Pneumatic Conduit

    Pronar T679 SECTION 5 5.3.6 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS AND PNEUMATIC SOCKETS DANGER Unreliable and dirty trailer connections may cause unreliability and faulty functioning of braking system. Damaged connection body or socket for connecting the second trailer should be replaced. In the event of damage to cover or seal, change these elements for new reliable elements.

  • Page 113: Hydraulic System Maintenance

    SECTION 5 Pronar T679 The ends of the pneumatic conduit (1) must be cut exactly at right angles. Clamping ring (3) should be fitted according to figure (5.10). Reinforcing sleeve (4) of the conduit must be thoroughly depressed. Check tightness of connections in accordance with Chapter (5.3.2).

  • Page 114: Checking Hydraulic System Tightness

    Pronar T679 SECTION 5 • checking tightness and visual inspection of the system, • checking technical condition of hydraulic connections. DANGER Do NOT tip trailer with unreliable hydraulic tipping system. Do not use the trailer if the support hydraulic system is out of order.

  • Page 115: Checking Technical Condition Of Hydraulic

    SECTION 5 Pronar T679 5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC COUPLERS AND SOCKETS. Hydraulic connections and sockets designed for connection with second trailer must be in good working condition and kept clean. Each time before connecting, check if sockets in tractor or connections of second trailer are maintained in good working condition.
  • Page 116 Pronar T679 SECTION 5 • changing bulbs ATTENTION Do NOT travel with out of order lighting system. Damaged lamp lenses, and burned-out bulbs must be replaced immediately before travelling. Lost or damaged reflectors must be replaced. Scope of maintenance activities Connect trailer to tractor with appropriate connection lead.

  • Page 117: Replacement Of Bulbs

    SECTION 5 Pronar T679 5.5.2 REPLACEMENT OF BULBS Compatible bulbs are shown in table (5.3). All light lenses are secured by screws and it is not necessary to dismantle whole lamp or trailer subassemblies. TABLE 5.3 List of bulbs NUMBER...

  • Page 118: Trailer Lubrication

    Pronar T679 SECTION 5 5.6 TRAILER LUBRICATION FIGURE 5.11 Trailer's lubrication points 5.28...
  • Page 119 SECTION 5 Pronar T679 FIGURE 5.12 Trailer's lubrication points TABLE 5.4 Trailer lubrication schedule ITEM LUBRICATION POINT Wheel hub bearing 5.29...
  • Page 120 Pronar T679 SECTION 5 ITEM LUBRICATION POINT Drawbar eye Expander shaft sleeve Parabolic leaf springs Socket for installation of tipping ram and cylinder suspension Tipping cylinder ball bearing Parking brake mechanism Leaf spring sliding surface Leaf spring pin Rocker arm pin...
  • Page 121 SECTION 5 Pronar T679 ITEM LUBRICATION POINT Tailgate wing securing pin Slide gate guide Chute string pin Tailgate wing securing pin Lubrication periods – M months, D – days, – not shown in figure TABLE 5.5 Recommended lubricants MARKING ACCORDING DESCRIPTION TO TAB.

  • Page 122: Consumables

    Pronar T679 SECTION 5 leaf spring and leaf spring pin should be lubricated according to recommendations contained in table (5.4). Parts to be lubricated with machine oil should be wiped with dry clean cloth and then a small quantity of oil should be applied to their surfaces (using oil can or brush). Wipe off excess oil.

  • Page 123: Lubricants

    SECTION 5 Pronar T679 TABLE 5.6 L-HL 32 Lotos hydraulic oil characteristics ITEM NAME UNIT VALUE ISO 3448VG viscosity classification Kinematic viscosity at 40 28.8 – 35.2 ISO 6743/99 quality classification DIN 51502 quality classification Flash-point Because of its composition the oil applied is not classified as a dangerous substance, however long-term action on the skin or eyes may cause irritation.

  • Page 124: Cleaning The Trailer

    Pronar T679 SECTION 5 5.8 CLEANING THE TRAILER Trailer should be cleaned depending on requirements and before longer idle periods (e.g. before winter period). Before using pressure washer the user is obliged to acquaint himself with the operating principles and recommendations concerning safe use of this equipment.

  • Page 125: Storage

    SECTION 5 Pronar T679 DANGER Carefully read the instructions for application of detergents and maintenance preparations. While washing with detergents wear appropriate protective clothing and goggles protecting against splashing. • Detergents should be kept in original containers, optionally in replacement containers, but very clearly marked.

  • Page 126: Tightening Torque For Nut And Bolt Connections

    Pronar T679 SECTION 5 • Corroded places should be cleaned of rust, degreased and protected using undercoat paint and then painted with surface paint according to colour scheme. • In the event of a prolonged work stoppage, it is essential to lubricate all components regardless of the date of the last lubrication.

  • Page 127: Installation And Disassembly Of The Frame And Tarpaulin Cover

    SECTION 5 Pronar T679 FIGURE 5.13 Bolt with metric thread (1) strength class, (d) thread diameter Hydraulic conduits should be tightened using torque of 50 – 70 Nm. 5.11 INSTALLATION AND DISASSEMBLY OF THE FRAME AND TARPAULIN COVER Tarpaulin cover can only be used together with the frame. The assembly of wall extensions should be carried out with the use of appropriate platforms, ladders, ramps or other stable raised surfaces.
  • Page 128 Pronar T679 SECTION 5 Place tarpaulin cover (6) so that it rests on the limiters (5) on the right side. The tarpaulin cover should be folded so that it is possible to unroll it without unnecessary relocation of material. Install tarpaulin cover fastening straps (7) to the holders riveted to the right side of the load box.

  • Page 129: Adjustment Of Drawbar Position

    SECTION 5 Pronar T679 FIGURE 5.14 Frame with tarpaulin cover (1) front apex, (2) centre apex, (3) rear apex (4) connecting pipe, (5) limiter, (6) tarpaulin cover, (7) fastening strap 5.12 ADJUSTMENT OF DRAWBAR POSITION Position of trailer drawbar is chosen depending on the type of agricultural tractor hitch to be used to hitch the trailer.
  • Page 130 Pronar T679 SECTION 5 FIGURE 5.15 Adjustment of drawbar position (1) drawbar, (2) faceplate, (3) rotating drawbar eye, (4) fixed drawbar eye, (5) fixing bolt The drawbar height is controlled through the appropriate use of the holes on the drawbar plate (1) relative to the faceplate (2) - Figure (5.15).

  • Page 131: Troubleshooting

    SECTION 5 Pronar T679 Tighten the bolts (5) using the correct torque according to table (5.7). The design of the drawbar (1), and the faceplate (2) allows the three settings (I) (II) (III). Set and attach proper hitching eye to the drawbar plate.
  • Page 132 Pronar T679 SECTION 5 FAULT CAUSE REMEDY Check pressure on tractor pressure gauge, wait till compressor fills tank to required pressure. Damaged air compressor in Poor reliability of braking Insufficient pressure in the tractor Repair or replace. system system Damaged brake valve in tractor.
  • Page 133 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 134 …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 135 Wheel 425 / 65 R22,5reg. 168F Wheel 445 / 65 R22,5 TL Wheel 445 / 65 R22,5reg. 170F TL T679 Wheel 445 / 65 R22,5. BT41 168K TL Wheel 445 / 65 R22,5 HTR 168K TL Wheel 500 / 60-R22,5 16PR 159A8...

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