PRONAR T679M Operator's Manual
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PRONAR T679M Operator's Manual

Agricultural trailer
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TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
EDITION 1A-08-2015
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
tel.:
fax:
OPERATOR`S MANUAL
AGRICULTURAL TRAILER
PRONAR T679M
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO. 451N-00000000-UM
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl
EN

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  • 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 T679M. 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

    TABLE OF 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 WARRANTY TERMS 1.10 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 3.10 3.2.5 SUPPORT HYDRAULIC SYSTEM 3.12 3.2.6 TAILGATE HYDRAULIC SYSTEM 3.14 3.2.7 PARKING BRAKE 3.15 3.2.8 LIGHTING SYSTEM 3.16 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 MAINTENANCE OF BRAKES AND AXLES 5.2.1 PRELIMINARY INFORMATION 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 AXLE BEARING SLACKNESS 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...
  • Page 10 5.5.1 PRELIMINARY INFORMATION 5.28 TRAILER LUBRICATION 5.29 CONSUMABLES 5.33 5.7.1 HYDRAULIC OIL 5.33 5.7.2 LUBRICANTS 5.34 CLEANING THE TRAILER 5.35 STORAGE 5.36 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.37 5.11 ADJUSTMENT OF DRAWBAR POSITION 5.38 5.12 TROUBLESHOOTING 5.40...
  • Page 11 SECTION BASIC INFORMATION...

  • Page 12: Identification

    Pronar T679M 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 T679M TABLE 1.1 Markings on data plate ITEM MARKING General description and purpose Symbol / type of 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 T679M SECTION 1 FIGURE 1.2 Location of the axle data plate (1) 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 T679M 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 T679M 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. Due to the above, the user is obliged to: •...
  • Page 17 SECTION 1 Pronar T679M TABLE 1.2 Requirements for agricultural tractor CONTENTS UNIT REQUIREMENTS Brake system - sockets Single conduit pneumatic system according to A DIN 74 294 Double conduit pneumatic system according to ISO 1728 Hydraulic system according to ISO 7421-1...

  • Page 18: Equipment

    Pronar T679M SECTION 1 TABLE 1.3 Requirements for second trailer CONTENTS UNIT REQUIREMENTS Maximum gross weight 16,000 Brake system - connectors Single conduit pneumatic system according to A DIN 74 294 Double conduit pneumatic system coupler compliant with ISO 1728...
  • Page 19 SECTION 1 Pronar T679M TABLE 1.4 Trailer's equipment EQUIPMENT • The Operator's Manual • Warranty Book • Connection lead for the electrical system • Wheel chocks • Hydraulic shear type support • Double conduit pneumatic system without rear connectors •...

  • Page 20: Warranty Terms

    SECTION 1 1.4 WARRANTY TERMS 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 T679M Demand that the seller carefully and precisely fills out the Warranty Book and warranty repair coupons. A missing date of purchase or sale point stamp may make the user ineligible for any warranty repair or refund.
  • Page 22 Pronar T679M SECTION 1 certified and technically reliable securing measures. Worn straps, cracked securing catches, bent or corroded hooks as well as elements damaged in a different way may be unsuitable for use. Carefully read the information stated in the Operator's Manual for the given securing measure.

  • Page 23: Independent Transport By The User

    SECTION 1 Pronar T679M FIGURE 1.3 Positioning of transport lugs (1) transport lug, (2) lower longitudinal frame, (3) load box DANGER Incorrect use of securing measures may cause an accident. 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 T679M 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 T679M 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 braking system (e.g.
  • Page 26 Pronar T679M SECTION 1 1.16...

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Basic Safety Rules

    Pronar T679M 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 T679M working on 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 T679M 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 T679M • 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 T679M 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 T679M FIGURE 2.1 Mounting the rear light guards (1) light protecting guard, (2) star knob • Do not exceed the permitted speed arising from road conditions and design limitations. Adjust travel speed to the prevailing road conditions, trailer load and road traffic regulations limits.
  • Page 34 Pronar T679M SECTION 2 FIGURE 2.2 Method of placing chocks (1) wheel chock, (2) axle wheel • Chocks (1) should be placed only under one wheel (one in front of the wheel, the other behind the wheel - figure (2.2)).
  • Page 35 SECTION 2 Pronar T679M • 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 36 Pronar T679M SECTION 2 FIGURE 2.3 Mounting place for slow-moving vehicle warning sign (1) slow-moving vehicle warning sign, (2) attachment point • 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 (2.3). The warning sign (1) should be attached using the specifically prepared holder (2), riveted to the rear wall of the load box.

  • Page 37: Tyres

    SECTION 2 Pronar T679M 2.1.7 TYRES • When working with tyres, the trailer should be immobilised with parking brake and secured against rolling by placing chocks under wheel. Wheels can be taken off the trailer axle only when the trailer is not loaded.
  • Page 38 Pronar T679M SECTION 2 • The trailer can only be stood on when it is absolutely motionless and the tractor engine is switched off. Tractor and trailer should be 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.
  • Page 39 SECTION 2 Pronar T679M • During welding work pay attention to flammable or fusible elements (parts of the pneumatic, electric and hydraulic systems, plastic parts). If there is a risk that they will catch fire or be damaged, they should be removed or covered with non- flammable material before commencing welding work.

  • Page 40: Residual Risk

    SECTION 2 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 41: 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 42 Pronar T679M SECTION 2 ITEM DECAL MEANING Danger of crushing Do NOT perform any maintenance or repairs on the load box that is loaded, raised or not supported. 58RPN-00.00.012 Danger of crushing Maintain a safe distance during opening and closing the tailgate.
  • Page 43 SECTION 2 Pronar T679M ITEM DECAL MEANING Grease the trailer according to the recommendations in the Operator's Manual 104RPN-00.00.00.04 Caution! Before starting work, carefully read the Operator's Manual. 70RPN-00.00.00.04 Manufacturer's website. 62RPN-00.00.014 Transport decal Securing points for the transport 58RPN-00.00.019 Maximum design speed.
  • Page 44 Pronar T679M SECTION 2 ITEM DECAL MEANING Positions of control valve controlling work of hydraulic tipping system (1 or 2 trailers). Conduit supplying hydraulic tipping system. Supply conduit of the shear type support's hydraulic system (lowering) Supply conduit of the shear...
  • Page 45 SECTION 2 Pronar T679M FIGURE 2.4 Locations of information and warning decals 2.19...
  • Page 46 Pronar T679M SECTION 2 2.20...

  • Page 47: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 48: Technical Specification

    Pronar T679M SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical specification CONTENTS UNIT T679M Trailer dimensions Total length 6 797 Total width 2 550 Total height 2 460 Internal load box dimensions Length 4 800 Width (front) 2 140...

  • Page 49: Trailer Construction

    SECTION 3 Pronar T679M 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 50 Pronar T679M SECTION 3 FIGURE 3.1 Trailer chassis (1) lower frame, (2) drawbar, (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 absorber, (10) shock absorber rocker arm (11) - (14) drawbar eye, (15) parking brake...

  • Page 51: Load Box

    SECTION 3 Pronar T679M 3.2.2 LOAD BOX FIGURE 3.2 Load box (1) load box, (2) tailgate, (3) inspection window, (4) upper ladder, (5) lower ladder, (6) wheel covering, (7) chute slide gate, (8) tailgate seal...

  • Page 52: Main Brake

    Pronar T679M 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 the shape of a trapezoid. The load box is mounted on the lower frame - figure (3.1). The axis of rotation of the tilted load box is formed by the tipping pins located at the back of the lower frame.
  • Page 53 SECTION 3 Pronar T679M FIGURE 3.3 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 (yellow) - option, (12) socket (red) - option, (13) relay valve.
  • Page 54 Pronar T679M 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 55 SECTION 3 Pronar T679M FIGURE 3.5 Design and diagram of the double conduit pneumatic braking systemwith an automatic regulator (1) air tank, (2) control valve, (3) automatic braking force regulator, (4) pneumatic cylinder, (5) conduit connector (red), (6) conduit connector (yellow), (7) air filter, (8) air tank control...

  • Page 56: Hydraulic Tipper System

    Pronar T679M SECTION 3 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. Three working positions are available: A - "no load”, B - "half load”...
  • Page 57 SECTION 3 Pronar T679M • circuit (B) - to supply the second trailer's hydraulic cylinder (if two trailers are hitched to the tractor). FIGURE 3.7 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) –...

  • Page 58: Support Hydraulic System

    Pronar T679M SECTION 3 • 1 - the trailer's tipping circuit is opened - circuit (A), • 2 - the second trailer's tipping circuit is opened – circuit (B). On the connection conduit, in the vicinity of plug (4), there is a decal (9) identifying the supply conduit of the hydraulic tipping system.
  • Page 59 SECTION 3 Pronar T679M Hydraulic lock (5) installed on cylinder (4) improves safety of trailer operation. During raising or lowering, the support may damage the system conduits (rupture, loss of tightness). In such a case, the hydraulic lock will lock cylinder (4) in a fixed position.

  • Page 60: Tailgate Hydraulic System

    Pronar T679M SECTION 3 3.2.6 TAILGATE HYDRAULIC SYSTEM FIGURE 3.9 Design of the hydraulic system of the tailgate (1) hydraulic cylinder, (2) hydraulic lock, (3) flow divider, (4) hydraulic conduit, (5) quick coupler - plug, (6) plug stopper (black), (7) tailgate The hydraulic system - figure (3.9) is used for closing and opening the tailgate.(7) The...

  • Page 61: Parking Brake

    SECTION 3 Pronar T679M FIGURE 3.10 Diagram of the hydraulic system of the tailgate (1) hydraulic cylinder, (2) two-sided hydraulic lock, (3) flow divider In the initial stage of opening, the tailgate raises slightly and releases the locks in the form of hooks (in the floor frame) and forks (in the tailgate) and then, it tilts upwards.

  • Page 62: Lighting System

    Pronar T679M SECTION 3 FIGURE 3.11 Parking brake design (1) expander lever, (2) brake crank mechanism, (3) steel cable, (4) guide roller, (5) spring 3.2.8 LIGHTING SYSTEM The trailer's electrical system is designed for supply from direct current source of 12 V.
  • Page 63 SECTION 3 Pronar T679M FIGURE 3.12 Positioning of electrical components and reflective lights (1) 7-pin socket, (2) front parking light, (3) side parking light, (4) rear lamp assembly, left side, (5) rear lamp assembly, right side, (6) licence plate light, (7) rear clearance light, (8) reflective triangle, (9) protective shield 3.17...
  • Page 64 Pronar T679M SECTION 3 FIGURE 3.13 Electrical system diagram Marking according to table (3.2), (3.3) and (3.4) 3.18...
  • Page 65 SECTION 3 Pronar T679M TABLE 3.2 List of electrical component markings SYMBOL NAME Rear lamp assembly, right side (LED) Rear lamp assembly, left side (LED) Front seven pin socket Rear seven pin socket License plate light, right side (LED) License plate light, left side (LED)
  • Page 66 Pronar T679M SECTION 3 TABLE 3.4 Lead colour marking MARKING COLOUR White Black Blue Orange Green Black and green Pink 3.20...

  • Page 67: Correct Use

    SECTION CORRECT USE...

  • Page 68: Preparing For Work Before The First Use

    Pronar T679M 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 69: Preparing The Trailer For The First Hitching To

    SECTION 4 Pronar T679M 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 70: Hitching And Unhitching The Trailer From Tractor

    Pronar T679M SECTION 4 Operating activities: 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 SECTION 4 Pronar T679M ATTENTION Trailer may only be hitched to a tractor that has the appropriate hitch, connection sockets for braking, hydraulic and electrical systems, and hydraulic oil in both machines is of the same type and may be mixed.
  • Page 72 Pronar T679M SECTION 4 When the support is completely folded, set manifold lever in tractor to "neutral" position. Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab. The trailer hitched to the tractor must be level. Empty trailer may be slightly tilted forwards from the level (about 50mm).
  • Page 73 SECTION 4 Pronar T679M During connection of braking system conduits (pneumatic double conduit) the correct sequence of conduit connection is very important. First connect the yellow connector to yellow socket in the tractor and only then connect the red connector to the red socket in the tractor.

  • Page 74: Hitching And Unhitching The Second Trailer

    Pronar T679M SECTION 4 Disconnect pneumatic system conduits (applies to double conduit pneumatic system). Disconnect pneumatic conduit marked red. Disconnect pneumatic conduit marked yellow. Disconnect pneumatic system conduits (applies to single conduit systems): Disconnect pneumatic conduit marked black. Protect conduit ends with covers. Place conduit plugs in appropriate hanger sockets.
  • Page 75 SECTION 4 Pronar T679M Immobilise the second trailer with parking brake. If the trailer is equipped with manual rear hitch (1), remove the securing cotter pin (6) and hitch pin (5) - figure (4.1). If the trailer is equipped with automatic rear hitch (2), lift the pin by the handle (4) - figure(4.1).
  • Page 76 Pronar T679M SECTION 4 FIGURE 4.1 Coupling second trailer (1) manual hitch, (2) automatic hitch, (3) second trailer's drawbar, (4) automatic hitch lifting handle, (5) hitch pin, (6) chain with a securing cotter pin Unhitching the second trailer Immobilise tractor and trailer with parking brake.

  • Page 77: Loading And Securing Load

    SECTION 4 Pronar T679M Unlock the pin of the rear hitch of the first trailer. Remove the pin and drive tractor away. Insert the pin again and secure it in the hitch. ATTENTION Do NOT hitch a second trailer constructed on any chassis except dual axle.
  • Page 78 Pronar T679M SECTION 4 materials is shown in table (4.1). Take special care not to exceed the maximum carrying capacity of the trailer specified on the data plate. TABLE 4.1 Guideline weights by volume of selected materials WEIGHT BY VOLUME...
  • Page 79 SECTION 4 Pronar T679M WEIGHT BY VOLUME TYPE OF MATERIAL kg/m hard sawn timber 500 - 600 impregnated timber 600 - 800 steel structures 700 – 7 000 milled burnt lime 700 - 800 cinders 650 - 750 gravel 1 600 – 1 800...
  • Page 80 Pronar T679M SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m cut green fodder in bulk trailer 150 - 400 green fodder in gathering trailer 120 - 270 fresh beet leaves 140 - 160 cut fresh beet leaves 350 - 400...
  • Page 81 SECTION 4 Pronar T679M WEIGHT BY VOLUME TYPE OF MATERIAL kg/m oil seed rape 600 - 750 linseed 640 - 750 lupins 700 - 800 oats 400 - 530 lucerne 760 - 800 640 - 760 Others: dry soil 1 300 – 1 400 wet soil 1 900 –...
  • Page 82 Pronar T679M SECTION 4 Oilseed rape or seeds of other plants of very small size or powder materials can be transported provided the load box is properly sealed in places where gaps are bigger than the seed diameter or other carried material. Profiled rubber seals, silicone sealers, plastic wrap, rope or textile materials are recommended materials to provide sealing of the load box.
  • Page 83 SECTION 4 Pronar T679M 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: Load Transport

    Pronar T679M 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 T679M • Trailer may be towed on slopes of up to 5° provided that a safe speed is maintained. Unloading should be performed only on a level ground. • When not connected to the tractor, the trailer must be immobilised using parking brake and possibly also with chocks or other objects without sharp edges placed under the front and back wheels.

  • Page 86: Unloading

    Pronar T679M SECTION 4 • Monitor trailer's behaviour when travelling on an uneven terrain, and adjust driving speed to road conditions, slow down early enough when turning. • The trailer is designed to operate on slopes up to 5° provided that a safe speed is maintained.
  • Page 87 SECTION 4 Pronar T679M DANGER Before unloading the trailer, check that the bolts connecting the load box with the lower frame are properly secured. Do not unload the first trailer when the second trailer is connected. Do NOT tip load box in strong gusty winds conditions.

  • Page 88: Proper Use And Maintenance Of Tyres

    Pronar T679M SECTION 4 required and lock again using the bolt. During unloading through chute, load box must be raised slowly and smoothly. Raising the load box quickly will exert large pressure on the rear part of the load box due to displacement of the carried material and could compromise trailer's stability.

  • Page 89: Using Underrun Protection Devices

    SECTION 4 Pronar T679M • When the trailer is operated all day, stop working for a minimum of one hour in the afternoon. • Take a 30 minute-break for cooling tyres after driving 75 km or after 150 minutes of continuous travel, depending on which occurs first.
  • Page 90 Pronar T679M SECTION 4 FIGURE 4.3 Underrun protection device (1) underrun protection strip, (2) bracket, (3) clamping ring, (4) interlock latch, 4.24...

  • Page 91: Maintenance

    SECTION MAINTENANCE...

  • Page 92: Preliminary Information

    Pronar T679M 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 T679M 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: Checking Brake Shoe Linings For Wear

    Pronar T679M SECTION 5 5.2.3 CHECKING BRAKE SHOE LININGS FOR WEAR Trailer brake shoes should be replaced when the brake lining thickness is less then the minimum specified by the manufacturer. ATTENTION Minimum thickness of the trailer brake linings is 2 mm.

  • Page 95: Checking Wheel Axle Bearings For Slackness

    SECTION 5 Pronar T679M 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, immobilize tractor with parking brake. Park tractor and trailer on hard level ground.
  • Page 96 Pronar T679M SECTION 5 DANGER Before commencing work, the user must read the user manual for lifting jack 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 axle bearing slackness.

  • Page 97: Adjustment Of Axle Bearing Slackness

    SECTION 5 Pronar T679M Check wheel axle bearings for slackness: • after travelling the first 1,000 km, • after intensive use of trailer, • every six months use or every 25,000 km. 5.2.5 ADJUSTMENT OF AXLE BEARING SLACKNESS Preparation procedures Prepare tractor and trailer for adjustment procedures according to description provided in section 5.2.4.

  • Page 98: Mounting And Dismounting Wheel, Inspection Of

    Pronar T679M 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 T679M Loosen wheel nuts according to sequence given 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. The lifting jack should have sufficient lifting capacity and should be technically reliable.
  • Page 100 Pronar T679M 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 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 pin.

  • Page 101: Checking Air Pressure In Tyres, Evaluating

    SECTION 5 Pronar T679M Checking wheel tightening: • After the first use of trailer (one-time inspection). • Every 2 – 3 hours of trailer travel (during the first month of trailer use). • Every 30 hours of trailer travel. The above actions should be repeated individually if a wheel has been removed from the wheel axle.

  • Page 102: Adjustment Of Mechanical Brakes

    Pronar T679M SECTION 5 5.2.8 ADJUSTMENT OF MECHANICAL BRAKES Considerable wear of brake shoe linings results in increased brake cylinder rod stroke and worse braking efficiency. Correct brake cylinder piston stroke should be within the range of 25 – 45 mm.
  • Page 103 SECTION 5 Pronar T679M FIGURE 5.5 Design of wheel axle brake (1) expander arm , (2) expander shaft, (3) adjustment bolt, (4) brake cylinder, (5) brake cylinder piston, (6) cylinder fork, (7) fork pin ATTENTION The positions for fixing the brake cylinder in the bracket openings and the brake cylinder pin in the expander arm are determined by the Manufacturer and must not be changed.
  • Page 104 Pronar T679M SECTION 5 Turn off tractor engine and remove key from ignition. Immobilise the tractor with parking brake. Make sure that the trailer's brakes are not engaged. Secure the trailer with wheel chocks. FIGURE 5.6 Principle of brake adjustment...
  • Page 105 SECTION 5 Pronar T679M Press the tractor brake pedal and mark the position of the maximum extension of the brake cylinder piston rod with a line (B). Measure the distance between lines (A) and (B). If the brake cylinder rod stroke is outside the proper operating range, adjust the expander arm.

  • Page 106: Replacement Of Parking Brake Cable And Adjustment Of Cable Tension

    Pronar T679M SECTION 5 5.2.9 REPLACEMENT 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. FIGURE 5.7 Adjustment of parking brake cable tension...
  • Page 107 SECTION 5 Pronar T679M If necessary, dismount pins and guide rollers (3). Dismantle cable (2). Clean parking brake components, lubricate parking brake crank mechanism and pins of cable guide rollers (3). Install a new cable. After the first loading of cable, re-check the condition of cable ends, correct if necessary.
  • Page 108 Pronar T679M SECTION 5 Adjustment of parking brake cable tension Before commencing the adjustment make certain that the main axle brake is correctly regulated and is functioning properly. Hitch trailer to tractor. Park trailer and tractor on level surface. Place securing chocks under one trailer wheel.

  • Page 109: Pneumatic System Maintenance

    SECTION 5 Pronar T679M 5.3 PNEUMATIC SYSTEM MAINTENANCE 5.3.1 PRELIMINARY INFORMATION Work connected with repair, replacement or regeneration of system components (brake cylinders, conduits, control valve, braking force regulator, etc.) should be entrusted to specialist establishments, having the appropriate technology and qualifications for this type of work.
  • Page 110 Pronar T679M SECTION 5 In double conduit systems air pressure should amount to approx. 6.5 bar. Turn off tractor engine. Check system components by releasing brake pedal in tractor. Pay particular attention to conduit connections and brake cylinders. Repeat the system check with depressed tractor brake pedal.

  • Page 111: Cleaning The Air Filters

    SECTION 5 Pronar T679M 5.3.3 CLEANING THE AIR FILTERS FIGURE 5.9 Air filter (1) securing slide lock, (2) air filter cover DANGER Before proceeding to dismantle filter, reduce pressure in supply conduit. While dismounting the slide lock, hold the cover with the other hand. Stand away from filter cover vertical direction.

  • Page 112: Draining Water From Air Tank

    Pronar T679M 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 113: Cleaning The Drain Valve

    SECTION 5 Pronar T679M FIGURE 5.10 Draining water from air tank (1) air tank, (2) drain valve, (3) control connector 5.3.5 CLEANING THE DRAIN VALVE DANGER Release air from the air tank before dismantling drain valve. Required maintenance actions Completely reduce pressure in air tank.

  • Page 114: Cleaning And Maintaining Pneumatic Conduit

    Pronar T679M SECTION 5 Unscrew valve. Clean the valve, blow it with compressed air. Change copper seal. Screw in valve, fill tank with air and check tank tightness. Cleaning valve: • every 12 months (before winter period). 5.3.6 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS...

  • Page 115: Replacement Of Pneumatic Conduit

    SECTION 5 Pronar T679M 5.3.7 REPLACEMENT OF PNEUMATIC CONDUIT Pneumatic conduits should be replaced when permanently deformed, cut or frayed. FIGURE 5.11 Installation of pneumatic conduit (1) push-in fitting, (2) pneumatic conduit TABLE 5.3 Tightening torques for pneumatic system fittings...

  • Page 116: Hydraulic System Maintenance

    Pronar T679M SECTION 5 5.4 HYDRAULIC SYSTEM MAINTENANCE 5.4.1 PRELIMINARY INFORMATION Work connected with the repair, change or regeneration of hydraulic system components (hydraulic cylinders, valves etc.) should be entrusted to specialist establishments, having the appropriate technology and qualifications for this type of work.

  • Page 117: Checking Technical Condition Of Hydraulic

    SECTION 5 Pronar T679M "sweating", however in the event of noticing leaks in the form of "droplets" stop using the trailer until faults are remedied. If unreliability is evident in brake cylinders, do NOT use trailer with damaged system until faults are remedied.

  • Page 118: Maintenance Of Electrical System And Lighting

    Pronar T679M SECTION 5 5.5 MAINTENANCE OF ELECTRICAL SYSTEM AND LIGHTING ELEMENTS 5.5.1 PRELIMINARY INFORMATION Work connected with the repair, change or regeneration of electrical system components should be entrusted to specialist establishments, having the appropriate technology and qualifications for this type of work.

  • Page 119: Trailer Lubrication

    SECTION 5 Pronar T679M Before driving on to public road, check that the tractor is equipped with a warning reflective triangle. Before driving off, make certain that all lamps and reflective lights are clean. 5.6 TRAILER LUBRICATION Trailer lubrication should be performed with the aid of a manually or foot operated grease gun, filled with recommended grease.
  • Page 120 Pronar T679M SECTION 5 FIGURE 5.12 Trailer's lubrication points 5.30...
  • Page 121 SECTION 5 Pronar T679M FIGURE 5.13 Trailer's lubrication points TABLE 5.4 Trailer lubrication schedule ITEM LUBRICATION POINT Wheel hub bearing Drawbar eye Expander shaft sleeve 5.31...
  • Page 122 Pronar T679M SECTION 5 ITEM LUBRICATION POINT Brake expander arm 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 Shear type drawbar support cylinder bearing...

  • Page 123: Consumables

    SECTION 5 Pronar T679M TABLE 5.5 Recommended lubricants MARKING ACCORDING DESCRIPTION TO TAB. (5.4) machine general-purpose grease (lithium, calcium grease), permanent grease for heavily loaded elements with addition of MOS graphite anticorrosion preparation in aerosol ordinary machine oil, silicon grease in aerosol Change of grease in hub bearings should be entrusted to specialised service points, equipped with the appropriate tools.

  • Page 124: Lubricants

    Pronar T679M SECTION 5 system. During normal trailer use change of hydraulic oil is not necessary, but if required, this operation should be entrusted to a specialist service point. TABLE 5.6 L-HL 32 Lotos hydraulic oil characteristics ITEM NAME UNIT...

  • Page 125: Cleaning The Trailer

    SECTION 5 Pronar T679M 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 126: Storage

    Pronar T679M SECTION 5 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 127: Tightening Torque For Nut And Bolt Connections

    SECTION 5 Pronar T679M • 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 128: Adjustment Of Drawbar Position

    Pronar T679M SECTION 5 FIGURE 5.14 Bolt with metric thread (1) strength class, (d) thread diameter Hydraulic conduits should be tightened using torque of 50 – 70 Nm. 5.11 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 129 SECTION 5 Pronar T679M 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 relative to the faceplate (2) - figure (5.15).

  • Page 130: Troubleshooting

    Pronar T679M SECTION 5 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. Rotating drawbar eye or ball drawbar eye are used for the lower hitch.
  • Page 131 SECTION 5 Pronar T679M 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 132 Pronar T679M SECTION 5 5.42...
  • Page 133 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 134 …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 135 Tyre dimensions TRAILER VERSION AXLE FRONT / REAR Wheel 385 / 65 R22,5 160F TL T679M Wheel 385 / 55 R22,5 160F XZA2 Wheel 500 / 45-R22,5 154A8 16PR TL - wheel disc 11.75x22.5; ET= -30 -wheel disc 16.00x22.5H2; ET= -40...

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