PRONAR T669/1 Operator's Manual
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PRONAR T669/1 Operator's Manual

Agricultural trailer
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TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
ISSUE 3B-10-2010
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
tel.:
fax:
OPERATOR'S MANUAL
AGRICULTURAL TRAILER
PRONAR T669/1
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO 67N-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 T669/1

  • Page 1 PRONAR Sp. z o.o. 17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE 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 T669/1. 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 CONTENTS 1 BASIC INFORMATION IDENTIFICATION 1.1.1 TRAILER IDENTIFICATION 1.1.2 AXLE IDENTIFICATION 1.1.3 LIST OF FACTORY NUMBERS PROPER USE EQUIPMENT TERMS & CONDITIONS OF WARRANTY TRANSPORT 1.11 1.5.1 TRANSPORT ON VEHICLE 1.11 1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.13 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 TIPPER SYSTEM 3.12 3.2.5 SHEAR TYPE DRAWBAR SUPPORT HYDRAULIC SYSTEM 3.14 3.2.6 TAILGATE HYDRAULIC SYSTEM 3.15 3.2.7 TURNING INTERLOCK HYDRAULIC SYSTEM 3.17 3.2.8 PARKING BRAKE 3.18 3.2.9 LIGHTING SYSTEM...
  • Page 9 5.2.2 INITIAL INSPECTION OF AXLE BRAKES 5.2.3 CHECK BRAKE SHOE LININGS FOR WEAR 5.2.4 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS 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 CHECK AIR PRESSURE, EVALUATE TECHNICAL CONDITION OF WHEELS AND TYRES 5.11 5.2.8 MECHANICAL BRAKES ADJUSTMENT...
  • Page 10 TRAILER LUBRICATION 5.28 CONSUMABLES 5.33 5.2.1 HYDRAULIC OIL 5.33 5.2.2 LUBRICANTS 5.34 CLEANING TRAILER 5.34 STORAGE 5.36 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.37 5.11 INSTALLATION AND DISASSEMBLY OF EXTENSION WALLS 5.38 5.12 INSTALLATION AND DISASSEMBLY OF THE FRAME AND TARPAULIN COVER 5.41 5.13 ADJUSTMENT OF DRAWBAR POSITION...
  • Page 11 SECTION BASIC INFORMATION...

  • Page 12: Trailer Identification

    Pronar T669/1 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 serial number (2) located on a gold painted rectangle.

  • Page 13: Axle Identification

    SECTION 1 Pronar T669/1 TABLE 1.1 Markings on data plate ITEM MARKING General description and purpose Trailer symbol / type Trailer year of manufacture Seventeen digit vehicle identification number (VIN) Official certificate number Tare weight Maximum gross weight Carrying capacity...

  • Page 14: List Of Factory Numbers

    Pronar T669/1 SECTION 1 FIGURE 1.2 Location of the axle data plate (1) wheel axle, (2) data plate 1.1.3 LIST OF FACTORY 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: Proper Use

    SECTION 1 Pronar T669/1 1.2 PROPER 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 fertilisers and other loads, if fulfilling conditions indicated in section 4.
  • Page 16 Pronar T669/1 SECTION 1 must be observed. The trailer speed must not, however, be greater than the maximum design speed of 40 km/h. 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 17 SECTION 1 Pronar T669/1 TABLE 1.2 Agricultural tractor's requirements CONTENTS UNIT REQUIREMENTS Brake system - sockets Pneumatic system 1 line according to ISO 1728 Pneumatic system 2 line according to ISO 1728 Hydraulic system according to ISO 7421-1 Maximum system pressure...
  • Page 18 Pronar T669/1 SECTION 1 TABLE 1.3 Requirements for second trailer CONTENTS UNIT REQUIREMENTS Maximum gross weight 20,000 Brake system - connectors Pneumatic system 1 line connector compliant with ISO 1728 Pneumatic system 2 line connector compliant with ISO 1728 Hydraulic system...

  • Page 19: Terms & Conditions Of Warranty

    Warning reflective 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 20 Pronar T669/1 SECTION 1 The warranty does not apply to those parts and sub-assemblies of the machine, which are subject to wear in normal usage conditions, regardless of the warranty period. Consumables include the following parts/sub-assemblies: • drawbar hitching eye, •...

  • Page 21: Transport On Vehicle

    SECTION 1 Pronar T669/1 For detailed Terms & Conditions of Warranty, please refer to the WARRANTY BOOK attached to each machine. Modification of the trailer without the written consent of the Manufacturer is forbidden. In particular, do NOT weld, drill holes in, cut or heat the main structural elements of the machine, which have a direct impact on the machine operation safety.
  • Page 22 Pronar T669/1 SECTION 1 including weight of the trailer, the construction of vehicle carrying trailer, speed of travel and other conditions. For this reason it is impossible to define the securing plan precisely. A correctly secured trailer does not change its position with regard to the transport vehicle. The securing elements must be selected according to the guidelines of the Manufacturer of these elements.

  • Page 23: Independent Transport By The User

    SECTION 1 Pronar T669/1 FIGURE 1.3 Positioning of transport lugs (1) transport lug, (2) lower longitudinal frame, (3) load box 1.5.2 INDEPENDENT TRANSPORT BY THE USER In the event of independent transport by the user after purchase of the trailer, the user must read the trailer Operator's Manual and adhere to the recommendations contained therein.

  • Page 24: Environmental Hazards

    Pronar T669/1 SECTION 1 1.6 ENVIRONMENTAL HAZARDS A hydraulic oil leak constitutes a direct threat to the natural environment owing to its limited biodegradability. The negligible solubility of hydraulic oil in water does not cause extreme toxicity of organisms living in the aquatic environment. The formation of a film of oil on the water may be the direct cause of physical action on organism, perhaps causing change of oxygen values in the water because of lack of direct contact of air with the water.

  • Page 25: Withdrawal From Use

    SECTION 1 Pronar T669/1 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 T669/1 SECTION 1 1.16...

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Basic Safety Rules

    Pronar T669/1 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 SECTION 2 Pronar T669/1 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 And Pneumatic Systems

    Pronar T669/1 SECTION 2 • Before hitching trailer to tractor check that both machines are in good technical condition. • After completing the coupling of the trailer check the safety of the hitch. • Be especially careful when hitching the machine.

  • Page 31: Loading And Unloading

    SECTION 2 Pronar T669/1 • 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 Pronar T669/1 SECTION 2 • When closing or opening the rear grain chute gate take particular care to avoid crushing fingers. • Incorrect load distribution and overloading the machine may cause the trailer to tip over or cause damage to its components.

  • Page 33: Transporting The Machine

    SECTION 2 Pronar T669/1 2.1.6 TRANSPORTING THE MACHINE • During travel on public roads comply with the road traffic regulations and transport regulations in force in a given country, in which the trailer is used. • Do not exceed the permitted speed arising from road conditions and design limitations.
  • Page 34 Pronar T669/1 SECTION 2 FIGURE 2.1 Method of placing chocks (1) wheel chock, (2) axle wheel • Before driving off check that the parking brake is released, the braking force regulator is positioned in the proper position (applies to pneumatic systems with a manual three position regulator).
  • Page 35 SECTION 2 Pronar T669/1 • A load protruding beyond the edge of the trailer should be indicated according to the road traffic regulations. Do NOT transport loads forbidden by the Manufacturer. • Do NOT exceed the trailer's maximum carrying capacity. Exceeding the carrying capacity may lead to damage to the machine, loss of stability while driving, scattering of the load and danger while driving.
  • Page 36 Pronar T669/1 SECTION 2 • During reversing one should use the assistance of another person. During manoeuvring the person helping must stay at a safe distance from the danger zone and be visible all the time to the tractor driver.
  • Page 37 SECTION 2 Pronar T669/1 2.1.8 MAINTENANCE • During the warranty period, any repairs may only be carried out by 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 38 Pronar T669/1 SECTION 2 trailer wheel. Ensure that unauthorised persons do not have access to the tractor cab. • During maintenance or repair work trailer may be unhitched from tractor, but secured with chocks and parking brake. During this work the load box may not be raised.

  • Page 39: Description Of Residual Risk

    2.2 DESCRIPTION OF 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 40: 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 41 SECTION 2 Pronar T669/1 ITEM DECAL MEANING Caution! Before starting work, carefully read the Operator's Manual. Before beginning servicing or repairs, turn off tractor engine and remove key from ignition Ensure that unauthorised persons do not have access to the tractor cab.
  • Page 42 Pronar T669/1 SECTION 2 ITEM DECAL MEANING Line functions. Tipping the load box Plug stopper - blue Raising / lowering the tailgate Plug cap - black Hydraulic support Plug cap - blue Rear axle lock Plug cap - green Danger of crushing...
  • Page 43 SECTION 2 Pronar T669/1 ITEM DECAL MEANING Caution! Danger of electric shock. Keep a safe distance from overhead electric power lines during unloading. Air pressure in the tyres. Positions of control valve controlling work of hydraulic tipping system (1 or 2 trailers).
  • Page 44 Pronar T669/1 SECTION 2 FIGURE 2.3 Locations of information and warning decals. 2.18...

  • Page 45: Operation

    SECTION DESIGN AND OPERATION...

  • Page 46: Technical Specification

    Pronar T669/1 SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical specification CONTENTS UNIT T669/1 Trailer dimensions Total length 7,255 Total width 2,550 Total height 3,160 Internal load box dimensions Length 5,500 Width (front) 2,200 Width (rear) 2,250 Height 1,200 + 580...

  • Page 47: Trailer Construction

    SECTION 3 Pronar T669/1 3.2 TRAILER CONSTRUCTION 3.2.1 CHASSIS Trailer chassis consists of sub-assemblies indicated on figures (3.1) and (3.2). The lower frame (1) is a structure welded from steel shapes. It may be available in two variants depending on the unloading direction of the load box.
  • Page 48 Pronar T669/1 SECTION 3 FIGURE 3.1 Trailer chassis (1) lower frame, (2) drawbar, (3) shear type support, (4) wheel axle, (5) rear fender, (6) rear hitch, (7) leaf spring shock absorber, (8) shock absorber rocker arm, (9) load box support,...
  • Page 49 SECTION 3 Pronar T669/1 3.2.2 LOAD BOX FIGURE 3.2 Load box (1) load box, (2) side gate, (3) side extensions 580 mm, (4) fenced platform, (5) tailgate, (6) lower ladder, (7) wall extension ladder...
  • Page 50 Pronar T669/1 SECTION 3 The trailer load box (1) is a welded structure made from steel sheet and shapes. Depending on tipping direction, the load box is equipped with two centrally bolted side gates (2) on the unloading side – figure (3.2). To ensure smooth unloading to the rear it is in a shape of a cone.

  • Page 51: Main Brake

    SECTION 3 Pronar T669/1 In the rear part of the load box there is the tailgate (5) which is opened and closed using hydraulic cylinders. In order to enable more precise unloading of loose materials there is a slide gate opening (2) –...
  • Page 52 Pronar T669/1 SECTION 3 FIGURE 3.4 Design and diagram of the single conduit pneumatic brake system (1) air tank, (2) control valve, (3) manual brake force regulator, (4) pneumatic ram, (5) line connectors, (6) air filter, (7) pneumatic ram control connectors, (8) pneumatic ram piston...
  • Page 53 SECTION 3 Pronar T669/1 FIGURE 3.5 Design and diagram of the double conduit pneumatic brake system. (1) air tank, (2) control valve, (3) manual brake force regulator, (4) pneumatic cylinder, (5) line connector (red), (6) line 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 T669/1 SECTION 3 FIGURE 3.6 Design and system diagram of double line pneumatic brake with automatic regulator (1) air tank, (2) control valve, (3) automatic brake force regulator, (4) pneumatic cylinder, (5) line connector (red), (6) line 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 55 SECTION 3 Pronar T669/1 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 brake force regulator (2)- figure (3.8), adjusts braking force depending on setting. Switching to a suitable working mode is done manually by machine operator using the lever (4) prior to moving off.
  • Page 56 Pronar T669/1 SECTION 3 FIGURE 3.8 Control valve and brake force regulator (1) control valve, (2) brake 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 T669/1 FIGURE 3.9 Hydraulic tipping system construction 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) is used to activate these circuits. This valve's lever can be placed in two positions: •...
  • Page 58 Pronar T669/1 SECTION 3 On the connection line, in the vicinity of socket (4) there is a decal (8) identifying the supply line of the hydraulic system tipping circuit. IMPORTANT Cut-off valve (3) – figure (3.9) limits the tipping angle of the load box when tipped to the sides and to the rear.

  • Page 59: Tailgate Hydraulic System

    SECTION 3 Pronar T669/1 FIGURE 3.10 Design and diagram of the shear type support hydraulic system (1), (2) hydraulic line, (3) support leg, (4) hydraulic cylinder, (5) support arm, (6) hydraulic lock 3.2.6 TAILGATE HYDRAULIC SYSTEM Tailgate hydraulic system is used to raise and lower the trailer tailgate and control the operation of locking hooks (4).
  • Page 60 Pronar T669/1 SECTION 3 FIGURE 3.11 Tailgate hydraulic system construction and diagram (1) hydraulic cylinder, (2) supply line, (3) return line, (4) locking hook, (5) tailgate wing 3.16...
  • Page 61 SECTION 3 Pronar T669/1 3.2.7 TURNING INTERLOCK HYDRAULIC SYSTEM Turning interlock hydraulic system locks the rear steering axle (option) when reversing the trailer. The hydraulic system is supplied with oil from the tractor external hydraulic system. Through a hydraulic line (2) terminated with a quick coupler pressurised oil is supplied to hydraulic cylinders (1).

  • Page 62: Parking Brake

    Pronar T669/1 SECTION 3 3.2.8 PARKING BRAKE The parking brake is for immobilising trailer while standing motionless. System construction is shown in Figure (3.13). The brake crank mechanism (2), is welded on the left lower longitudinal 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).

  • Page 63: Lighting System

    SECTION 3 Pronar T669/1 3.2.9 LIGHTING SYSTEM The trailer electrical system is designed for supply from direct current source of 12 V. Connection of the trailer electrical system with the tractor should be made through an appropriate connection lead. FIGURE 3.14...
  • Page 64 Pronar T669/1 SECTION 3 3.20...
  • Page 65 SECTION 3 Pronar T669/1 FIGURE 3.15 Electrical system schematic diagram, the versions without the side lamps FIGURE 3.16 Schematic diagram of side lamp wiring harness electrical system Marking according to table (3.2), (3.3) and (3.4) TABLE 3.2 List of electrical component markings...
  • Page 66 Pronar T669/1 SECTION 3 SYMBOL NAME Front left parking light Rear right clearance light Rear left clearance light Left clearance lamp Right clearance lamp TABLE 3.3 Marking of connections of GT and X7P sockets MARKING FUNCTION Weight Power supply +12V (not used)

  • Page 67: Correct Use

    SECTION CORRECT USE...

  • Page 68: Preparing For Work Before First Use

    Pronar T669/1 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 69 SECTION 4 Pronar T669/1 4.1.2 PREPARE A 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 and bolts fixing the wheels are properly tightened.
  • Page 70 Pronar T669/1 SECTION 4 Service actions: hitching/unhitching from tractor, adjustment of draw bar position, tipping of load box etc. are described in detail in further parts of the Operator's Manual in sections 4 and 5. If during test run worrying symptoms occur such as: •...

  • Page 71: Hitching And Disconnecting From Tractor

    SECTION 4 Pronar T669/1 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 72 Pronar T669/1 SECTION 4 Using the support set the drawbar eye at such a height so it is possible to hitch the machines. Operate the selective control valve on the tractor to raise or lower the drawbar eye, until the correct height is achieved Reverse tractor, hitch trailer, check coupling lock protecting machine against accidental unhitching.
  • Page 73 SECTION 4 Pronar T669/1 Connect hydraulic turning interlock system lines (applies to trailer version with hydraulic turning interlock system). Connect the main wiring to power the electric lighting. 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 74 Pronar T669/1 SECTION 4 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. Lower shear type drawbar support to the ground. Operate the selective control valve on the tractor in the direction corresponding to the support cylinder piston extension.
  • Page 75 SECTION 4 Pronar T669/1 4.3 COUPLING AND UNCOUPLING SECOND TRAILER A second trailer may only be connected, if it is a machine built on a dual axle chassis and if it fulfils all the requirements specified in section 1. Coupling a second trailer to the assembly requires experience in driving an agricultural tractor with a trailer.
  • Page 76 Pronar T669/1 SECTION 4 FIGURE 4.2 Coupling second trailer (1) rear trailer hitch, (2) the second trailer drawbar, (3) automatic hitch pin lifting handle Insert drawbar pin and securing cotter pin. Connect lines of hydraulic, pneumatic and electrical systems according to instructions contained in section (4.2).

  • Page 77: Loading And Securing Load

    SECTION 4 Pronar T669/1 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). Remove cotter pin from pin of the hitch of the first trailer. Remove drawbar pin and drive tractor away.
  • Page 78 Pronar T669/1 SECTION 4 Materials, which in contact with painted or steel surfaces may cause damage, should be transported in sealed packaging (sacks, boxes, barrels etc.), and after completing transport, thoroughly wash out load box with water jet. IMPORTANT Always aim at distributing the load uniformly in the load box.
  • Page 79 SECTION 4 Pronar T669/1 VOLUME WEIGHT TYPE OF MATERIAL KG/M Building materials: cement 1,200 – 1,300 dry sand 1,350 – 1,650 wet sand 1,700 – 2,050 solid bricks 1,500 – 2,100 hollow bricks 1,000 – 1,200 stones 1,500 – 2,200...
  • Page 80 Pronar T669/1 SECTION 4 VOLUME WEIGHT TYPE OF MATERIAL KG/M cut dry straw in gathering trailer 50 - 90 cut dry straw in stack 40 - 100 baled straw (lightly crushed) 80 - 90 baled straw (heavily crushed) 110 - 150...
  • Page 81 SECTION 4 Pronar T669/1 VOLUME WEIGHT TYPE OF MATERIAL KG/M peas 650 - 750 lentils 750 - 860 runner beans 780 - 870 barley 600 - 750 clover 700 - 800 grass 360 - 500 maize 700 - 850 wheat...
  • Page 82 Pronar T669/1 SECTION 4 Loose bulk material 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 83 SECTION 4 Pronar T669/1 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. Carefully read the information leaflets provided by the load manufacturer, and to observe the instructions for transporting and handling the load.

  • Page 84: Transporting Loads

    Pronar T669/1 SECTION 4 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 85 SECTION 4 Pronar T669/1 • 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 86 Pronar T669/1 SECTION 4 • 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 87 SECTION 4 Pronar T669/1 when unloading sideways, open side gates (1) by unlocking locking hooks (3) and pulling towards yourself lever (2) - figure (4.3). During opening exercise caution, because the load may exert great pressure on the sides, It is possible to open only one side gate while unloading sideways. It...
  • Page 88 Pronar T669/1 SECTION 4 close side gates and block side gate locks (3) using lever (2), 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.
  • Page 89 SECTION 4 Pronar T669/1 FIGURE 4.4 Chute (1) chute slide gate, (2) chute, (3) lever, (4) locking bolt While unloading bulky 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 therefore proceed cautiously and patiently.

  • Page 90: Proper Use And Maintenance Of Tyres

    Pronar T669/1 SECTION 4 4.7 PROPER USE AND MAINTENANCE OF TYRES • When working on the tyres, chocks or other objects without sharp edges should be placed under the wheels of the trailer to prevent it from rolling. Wheels can be taken off the trailer axle only when the trailer is not loaded.

  • Page 91: Maintenance

    SECTION MAINTENANCE...

  • Page 92: Preliminary Information

    Pronar T669/1 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: Initial Inspection Of Axle Brakes

    SECTION 5 Pronar T669/1 • changing brake linings, repairing brake, may be performed by specialist workshops. DANGER Do NOT use the trailer when brake system is unreliable. 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 T669/1 SECTION 5 5.2.3 CHECK BRAKE SHOE LININGS FOR WEAR Trailer brake shoes should be replaced when the brake lining thickness is less than the minimum specified by the manufacturer. ATTENTION Minimum thickness of trailer brake linings is 5 mm.
  • Page 95 SECTION 5 Pronar T669/1 5.2.4 CHECK WHEEL AXLE BEARINGS FOR LOOSENESS 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 T669/1 SECTION 5 Checking slackness of wheel axle bearings 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 SECTION 5 Pronar T669/1 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. Ensure that trailer shall not move during inspection of bearing looseness of axles.
  • Page 98 Pronar T669/1 SECTION 5 FIGURE 5.3 Adjustment of road wheel axle bearings (1) hub cover, (2) castellated nut, (3) securing split 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 looseness may only be conducted, when the trailer is hitched to a tractor, and the load box is empty.
  • Page 99 SECTION 5 Pronar T669/1 Loosen wheel nuts according to sequence given in figure (5.4). Place a lift and raise the trailer to a sufficient height so that the wheel to be replaced does not touch the ground. Dismount wheel. Wheel installation Clean axle pins and nuts of dirt contamination.
  • Page 100 Pronar T669/1 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 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.
  • Page 101 SECTION 5 Pronar T669/1 Checking wheel tightening: • after first use, • after first travel with load, • after travelling the first 1,000 km, • every six months use or every 25,000 km. In the event of intensive work check the nut tightening at least every 100 km. The above actions should be repeated individually if a wheel has been removed from the wheel axle.

  • Page 102: Mechanical Brakes Adjustment

    Pronar T669/1 SECTION 5 Proper technical condition and appropriate maintenance of wheels significantly extends the life of these components and ensures appropriate level of safety to trailer users. Checking tyre pressure and steel rims: • every month of use, • if needed.
  • Page 103 SECTION 5 Pronar T669/1 in parallel with regard to each other at full braking. If this is not so, adjust the position of the lever, which has the longer stroke. FIGURE 5.5 Adjustment of axle mechanical brakes (1) expander arm, (2) expander shaft, (3) adjustment bolt, (4) cylinder fork If it is necessary to dismantle the cylinder fork (4), remember or mark its original position in the expander arm.
  • Page 104 Pronar T669/1 SECTION 5 5.2.9 CHANGE OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE TENSION. Proper operation of the parking brake is dependent on the effectiveness of the front axle brake and the correct brake cable tension. Replacing the parking brake cable Hitch trailer to tractor.
  • Page 105 SECTION 5 Pronar T669/1 Loosen the nuts (7) of U-shaped clamps (5). Remove the pins of the lever (4) and crank mechanism (1), remove the shackles (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 T669/1 SECTION 5 Loosen nuts (7) of cable clamps (5) of handbrake cable (2). 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 SECTION 5 Pronar T669/1 • clean drain valve, • cleaning and maintaining pneumatic line connections, • replacement of the pneumatic line. DANGER Do NOT use the trailer when brake system is unreliable. 5.3.2 INSPECTING AND CHECKING AIR TIGHTNESS OF PNEUMATIC SYSTEM.
  • Page 108 Pronar T669/1 SECTION 5 Check system tightness • after travelling the first 1,000 km, • each time after making repairs or changing system components, • annually. Visual assessment of system During tightness inspection attention should additionally be given to technical condition and degree of cleanness of the system components.

  • Page 109: Cleaning The Air Filters

    SECTION 5 Pronar T669/1 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 line. While disengaging filter slide gate, hold cover with other hand. Stand away from filter cover vertical direction.

  • Page 110: Draining Water From Air Tank

    Pronar T669/1 SECTION 5 Hold the filter cover (2) with the other hand. After removing slide lock, the cover is pushed off by the spring, in the filter housing. The insert and the filter body should be carefully washed out and blown through with compressed air.
  • Page 111 SECTION 5 Pronar T669/1 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. In the event, that the valve stem resists returning to its setting, then the whole drain valve must be unscrewed and cleaned, or replaced (if it is damaged) - see section 5.3.5.
  • Page 112 Pronar T669/1 SECTION 5 5.3.6 CLEANING AND MAINTAINING PNEUMATIC LINE CONNECTIONS AND PNEUMATIC SOCKETS DANGER Unreliable and dirty trailer connections may cause unreliability and faulty functioning of braking system. Damaged connection body or connection socket to second trailer should be replaced. In event of damage to cover or seal, change these elements for new reliable elements.

  • Page 113: Hydraulic System Operation

    SECTION 5 Pronar T669/1 The ends of the pneumatic line (1) must be cut exactly at right angles. Clamping ring (3) should be fitted according to figure (5.10). Reinforcing sleeve (4) of the line must be thoroughly depressed. Check tightness of connections in accordance with Chapter (5.3.2).

  • Page 114: Checking Hydraulic System Tightness

    Pronar T669/1 SECTION 5 • 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. Do NOT use the trailer if hydraulic brake system is unreliable.

  • Page 115: Replacement Of Hydraulic Conduits

    SECTION 5 Pronar T669/1 5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC CONNECTIONS 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 socket in tractor or connection of second trailer are maintained in good working condition.
  • Page 116 Pronar T669/1 SECTION 5 IMPORTANT Do NOT travel with unreliable lighting system. Damaged lamp lenses, and burned-out bulbs must be replaced immediately before travelling. Lost or damaged reflective lights must be replaced. Required service actions Hitch trailer to tractor with appropriate connection lead.

  • Page 117: Changing Bulbs

    SECTION 5 Pronar T669/1 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. TABLE 5.3 List of bulbs NUMBER BULB / QUANTITY...
  • Page 118 Pronar T669/1 SECTION 5 ITEM LUBRICATION POINT Parabolic leaf springs Sockets for installation of tipping ram and cylinder suspension Tipping ram cylinder ball bearing Parking brake mechanism Parking brake guide roller pins Leaf spring absorber sliding surface Absorber spring pins...
  • Page 119 SECTION 5 Pronar T669/1 ITEM LUBRICATION POINT Tailgate wing securing pin Ladder pin and catch Slide gate guides Slide gate pull shaft pins Rocker arm pin Lateral gate hinge Lateral gate lock Lubrication periods – M months, D – days, –...
  • Page 120 Pronar T669/1 SECTION 5 FIGURE 5.11 Trailer's lubrication points, part 1 5.30...
  • Page 121 SECTION 5 Pronar T669/1 FIGURE 5.12 Trailer's lubrication points, part 2 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 T669/1 SECTION 5 TABLE 5.5 Recommended lubricants LISTED ON DESCRIPTION TAB. (5.4) machine general-purpose grease (lithium, alkaline), permanent grease for heavily loaded elements with addition of MOS graphite anticorrosion preparation in aerosol ordinary machine oil, silicon grease in aerosol Before beginning to grease leaf springs remove contamination, wash with water and leave to dry.

  • Page 123: Hydraulic Oil

    SECTION 5 Pronar T669/1 During trailer use the user is obliged to observe lubrication instructions according to attached lubrication schedule. 5.7 CONSUMABLES 5.7.1 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.
  • Page 124 Pronar T669/1 SECTION 5 occurrence of irritation consult a doctor. Hydraulic oil in normal conditions is not harmful to the respiratory tract. A hazard only occurs when oil is strongly atomised (oil vapour), or in the case of fire during which toxic compounds may be released. Oil fires should be quenched with the use of carbon dioxide, foam or extinguisher steam.
  • Page 125 SECTION 5 Pronar T669/1 • Water temperature shall not exceed 55°C. • Do not direct water stream directly at system and equipment elements of trailer i.e. control valve, braking force regulator, brake cylinders, hydraulic cylinders, pneumatic, electric and hydraulic plugs, lights, electrical connections, information and warning decals, identification plates, line connections, spring leaves and lubrication points etc.
  • Page 126 Pronar T669/1 SECTION 5 • After finishing washing wait until trailer is dry and then grease all inspection points according to recommendations. Remove excess oil or grease with a dry cloth. • Observe environmental protection principles and wash trailer in a place designed for this purpose.
  • Page 127 SECTION 5 Pronar T669/1 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS Unless other tightening parameters are given, during maintenance repair work apply appropriate torque to tightening nut and bolt connections. Recommended tightening torque of most frequently applied nut and bolt connections are given in table below. Given values apply to non-lubricated steel bolts.
  • Page 128 Pronar T669/1 SECTION 5 FIGURE 5.13 Bolt with metric thread (1) resistance class, (d) thread diameter Hydraulic lines should be tightened with torque of 50 – 70 Nm. 5.11 INSTALLATION AND DISASSEMBLY OF EXTENSION WALLS Extension mounting Install six wall extension supports (8) on the rear and lateral load box stakes and the lateral tailgate stakes.
  • Page 129 SECTION 5 Pronar T669/1 Install the rear stakes (6). Attach rear lateral wall extensions (4) to the stakes (6). Install tailgate extension (2). On both sides Install the rear profiles of wall extensions (7) and screw them to tailgate extension (2).
  • Page 130 Pronar T669/1 SECTION 5 FIGURE 5.14 Load box with a set of wall extensions (1) front wall extension, (2) tailgate extension, (3) front lateral wall extension, (4) rear lateral wall extension, (5) lateral stake, (6) rear stake (left, right), (7) rear wall extension (left, right), (8) wall extension bracket, (9) tie beam, (10) tension rod 5.40...
  • Page 131 SECTION 5 Pronar T669/1 5.12 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 132 Pronar T669/1 SECTION 5 FIGURE 5.15 Frame with tarpaulin cover (1) front apex, (2) centre apex, (3) rear apex (4) connecting pipe, (5) limiter, (6) tarpaulin cover, (7) fastening strap DANGER Assembly and disassembly of the frame should be carried out with the use of appropriate platforms, ladders or when standing on a ramp.

  • Page 133: Adjustment Of Drawbar Position

    SECTION 5 Pronar T669/1 5.13 ADJUSTMENT OF DRAWBAR POSITION Location of trailer drawbar depends on the type of farm tractor hitch. If possible, we recommend adjusting the tractor hitch so that the trailer drawbar is positioned horizontally while driving on a flat terrain.

  • Page 134: Troubleshooting

    Pronar T669/1 SECTION 5 Set the drawbar eye in its new position and tighten with bolts (3) using appropriate torque. The faceplate design (2) allows 4 possible drawbar eye positions, Figure (5.16). To prevent premature wear of the ball drawbar make sure it is positioned horizontally at the tractor hitch point.
  • Page 135 SECTION 5 Pronar T669/1 FAULT CAUSE REMEDY Incorrect main or parking Regulate setting of expander arms Excessive heating of axle brake adjustment hubs Worn brake linings Change brake shoes Check oil quality, make sure that Improper hydraulic oil the oil in both machines is of the viscosity same type.
  • Page 136 Pronar T669/1 SECTION 5 5.46...
  • Page 137 ANNEX A Tyre dimensions TRAILER VERSION AXLE FRONT / REAR Wheel 385 / 65 R22,5reg. 160F TL Wheel 425 / 65 R22,5reg. 168F Wheel 445 / 65 R22,5reg. 170F TL Wheel 500 / 60-22,5 165A8 T669 Wheel 550 / 60-22,5 163A8 16PR Wheel 560 / 60 R22,5 161D Wheel 20.5 R22.5reg.

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