PRONAR T680 Operator's Manual
  1. Manuals
  2. Brands
  3. PRONAR Manuals
  4. Utility Vehicle
  5. T680
  6. Operator's manual

PRONAR T680 Operator's Manual

Agricultural trailer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
ISSUE 1A-03-2015
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
tel.:
fax:
OPERATOR'S MANUAL
AGRICULTURAL TRAILER
PRONAR T680
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO 443N-00000000-UM
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the T680 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for PRONAR T680

Summary of Contents for PRONAR T680

  • 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 T680. 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 1.11 TRANSPORT 1.12 1.5.1 TRANSPORT ON VEHICLE. 1.12 1.5.2 INDEPENDENT TRANSPORT BY THE USER. 1.14 ENVIRONMENTAL HAZARDS 1.15 WITHDRAWAL FROM USE 1.16...
  • 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 3.14 3.2.5 HYDRAULIC WALL UNLOCKING SYSTEM 3.16 3.2.6 FEEDER UNIT 3.17 3.2.7 PARKING BRAKE 3.19 3.2.8 LIGHTING SYSTEM 3.20 4 PROPER 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 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...
  • Page 10 TRAILER LUBRICATION 5.29 CONSUMABLES 5.34 5.7.1 HYDRAULIC OIL 5.34 5.7.2 LUBRICANTS 5.35 CLEANING THE TRAILER 5.35 STORAGE 5.37 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.38 5.11 INSTALLATION AND DISASSEMBLY OF THE FRAME AND TARPAULIN COVER 5.39 5.12 INSTALLATION AND DISMOUNTING OF WALL EXTENSIONS 5.42 5.13 ADJUSTMENT OF DRAWBAR POSITION...

  • Page 11: Basic Information

    SECTION BASIC INFORMATION...

  • Page 12: Identification

    Pronar T680 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 T680 When buying the trailer check that the serial numbers on the machine agree with the number written in the WARRANTY BOOK, in the sales documents and in the OPERATOR'S MANUAL. The meanings of the individual fields found on the data plate are presented in the table below: TABLE 1.1...

  • Page 14: List Of Serial Numbers

    Pronar T680 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 T680 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 fertilisers and other loads, if fulfilling conditions indicated in section 4.
  • Page 16 Pronar T680 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 T680 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 Pronar T680 SECTION 1 TABLE 1.3 Requirements for second trailer CONTENTS UNIT REQUIREMENTS Permissible gross weight of the 18 000 double-axle trailer Brake system - connectors Single conduit pneumatic system according to A DIN 74 294 Double conduit pneumatic system...

  • Page 19: Equipment

    SECTION 1 Pronar T680 1.3 EQUIPMENT TABLE 1.4 Trailer's equipment EQUIPMENT • Operator`s Manual • Warranty Book • Double conduit pneumatic system • Single conduit pneumatic system • Double conduit pneumatic system with automatic regulator • Hydraulic brake system •...
  • Page 20 Pronar T680 SECTION 1 EQUIPMENT • Set of 800mm wall extensions instead of standard 600mm wall extensions • Set of walls 3 rear chute shafts or 2 rear chute shafts • Set of 600 mm additional middle extensions • Side under-run protective devices •...

  • Page 21: Terms & Conditions Of Warranty

    Information on tyres is provided at the end of this publication in ANNEX A. 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 22: Transport

    Pronar T680 SECTION 1 the user will lose the right to warranty service. Demand that the seller carefully and precisely fills out the Warranty Book and guarantee repair coupons. A missing date of purchase or sale point stamp may make the user ineligible for any warranty repair or refund.
  • Page 23 SECTION 1 Pronar T680 upper longitudinal frame (2), with one pair on each side of the trailer. Use 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.

  • Page 24: Independent Transport By The User

    Pronar T680 SECTION 1 FIGURE 1.3 Positioning of transport lugs (1) transport lug, (2) longitudinal member of upper frame, (3) longitudinal member of lower frame 1.5.2 INDEPENDENT TRANSPORT BY THE USER. ATTENTION Before transporting independently, the tractor driver must carefully read this operator's manual and observe its recommendations.

  • Page 25: Environmental Hazards

    SECTION 1 Pronar T680 1.6 ENVIRONMENTAL HAZARDS The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil. 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.

  • Page 26: Withdrawal From Use

    Pronar T680 SECTION 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 braking system (e.g.

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Basic Safety Rules

    Pronar T680 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 T680 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 T680 SECTION 2 • Before hitching the trailer check that both machines are in good technical condition. • Be especially careful when hitching the trailer. • When hitching, there must be nobody between the trailers. A person helping to hitch the trailer should stand in such a place (outside the hazard zone) where he/she is continuously visible to the tractor driver.

  • Page 31: Loading And Unloading

    SECTION 2 Pronar T680 • 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 T680 SECTION 2 • Ensure that during unloading / loading or raising the load box nobody is near the trailer. Before tipping the load box ensure proper visibility and make certain that there are no bystanders near the trailer.

  • Page 33: Transporting The Machine

    SECTION 2 Pronar T680 • Do NOT jerk the trailer forwards if load is bulky or reluctant to pour and does not unload. • After completed unloading, ensure that the load box is empty. • Do NOT drive with the load box raised.
  • Page 34 Pronar T680 SECTION 2 FIGURE 2.1 Method of placing chocks (1) wheel chock, (2) wheel of rear axle • Do NOT move off or drive when load box is raised. • Before moving check that the trailer is correctly hitched to the tractor (in particular check security of hitching pin).
  • Page 35 SECTION 2 Pronar T680 • Before using the trailer always check its technical condition, especially in terms of safety. In particular, check the technical condition of the hitch system, the axle system, the brake system, indicator lights and the connective elements of the hydraulic, pneumatic and electrical systems.
  • Page 36 Pronar T680 SECTION 2 FIGURE 2.2 Mounting place for slow-moving vehicle warning sign (1) warning sign • If the trailer is the last vehicle in the group, - figure (2.2), a slow-moving vehicle warning sign should be placed on the trailer's rear load box wall. The triangle warning sign should be attached using the specifically prepared holder, riveted to the rear wall of the load box.

  • Page 37: Tyres

    SECTION 2 Pronar T680 • Do NOT attempt to enter the trailer load box while travelling. • Do NOT park the trailer on a slope. • When using the trailer with the middle wall extensions, there is an increased risk...
  • Page 38 Pronar T680 SECTION 2 is recommended that possible repairs to the trailer be performed by specialised workshops. • In the event of any fault or damage, do not use the trailer until the fault has been fixed. • While performing maintenance work, use proper, close-fitting protective clothing, gloves, protective shoes, protective goggles and appropriate tools.
  • Page 39 SECTION 2 Pronar T680 • 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. • Should it be necessary to change individual parts, use only those parts indicated by the Manufacturer.

  • Page 40: Residual Risk

    Manufacturer. 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 T680 SECTION 2 DECAL MEANING Caution! Before starting work, carefully read the Operator's Manual. Before climbing onto the trailer, switch off tractor's engine and remove key from ignition. Grease the trailer according to the recommendations in the Operator's Manual...
  • Page 43 SECTION 2 Pronar T680 DECAL MEANING Danger of crushing Do NOT perform any maintenance or repairs on the load box that is loaded, raised or not supported. Permissible gross weight of the trailer. Caution! Danger of electric shock. Keep a safe distance from overhead electric power lines during unloading.
  • Page 44 Pronar T680 SECTION 2 DECAL MEANING Positions of control valve controlling work of hydraulic tipping system (1 or 2 trailers). Maximum design speed. Information about approximate weight of selected goods. – pressure value should be adapted to tyres Numbers in the item column correspond to labels in figure (2.3) Decals –...
  • Page 45 SECTION 2 Pronar T680 FIGURE 2.3 Locations of information and warning decals 2.19...
  • Page 46 Pronar T680 SECTION 2 2.20...

  • Page 47: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 48: Technical Specification

    Pronar T680 SECTION 2 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical specification of T680 trailer CONTENTS UNIT DATA Dimensions Total length 7 300 Total width 2 550 Total height 2 800 Wheel track 1 900 Internal load box dimensions - length...

  • Page 49: Trailer Construction

    SECTION 2 Pronar T680 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 are two longitudinal members connected with crossbars. In the middle section of the frame there are sockets (6) used for mounting the hydraulic tipping cylinder.
  • Page 50 Pronar T680 SECTION 2 FIGURE 3.1 Trailer chassis (1) lower frame, (2) turntable frame, (3) drawbar, (4) wheel axle, (5) load box support (6) tipping cylinder socket (7), taper leaf spring, (8) lights support beam, ( 9) turntable, (10) front beam, (11) rear beam, (12) spring, (13) handbrake mechanism, (14) wheel chocks...

  • Page 51: Load Box

    Pronar T680 3.2.2 LOAD BOX T680 trailer's load box consists of: upper frame (1) – figure (3.2), with welded steel floor, side walls (2) with middle stakes (9), front wall (4), and 800 mm-high rear wall (5). Middle stakes (9) of walls and wall extensions are bound together with linking cables (11). As standard, the trailer is equipped with a set of wall extensions (3) of steel sheet profile and height of 600 mm.
  • Page 52 Pronar T680 SECTION 2 FIGURE 3.2 Load box with divided walls (1) upper frame, (2) side wall, (3) set of wall extensions, (4) front wall, (5) rear wall, (6) fenced platform (7) lower ladder (8), upper ladder, (9) middle stake, (10) hinge eye (11) linking cable,...

  • Page 53: Main Brake

    SECTION 2 Pronar T680 FIGURE 3.3 Rear wall (1) chute slide gate, (2) chute, (3) lever, (4) locking bolt In order to enable very precise unloading of loose materials there is a slide opening placed in the rear side (1) – figure (3.3), which is raised using lever (3). When in upper position and also during transport the slide must be secured by tightening the locking screw (4).
  • Page 54 Pronar T680 SECTION 2 FIGURE 3.4 Design and diagram of the double conduit pneumatic braking system (1) air tank, (2) control valve, (3) braking force regulator, (4) pneumatic cylinder, (5) conduit connector (red), (6) conduit connector (yellow), (7) air filter, (8) air tank control connector,...
  • Page 55 SECTION 2 Pronar T680 FIGURE 3.5 Design and diagram of the single conduit pneumatic braking system (1) air tank, (2) control valve, (3) braking force regulator, (4) pneumatic cylinder, (5) conduit connector (black), (6) air filter, (7) air tank control connector, (8) pneumatic cylinder control...
  • Page 56 Pronar T680 SECTION 2 FIGURE 3.6 Design and system diagram of double conduit pneumatic brake with automatic regulator (1) air tank, (2) control valve, (3) automatic braking force regulator, (4) pneumatic ram cylinder, (5) line connector (red), (6) line connector (yellow), (7) air filter, (8) air tank control...
  • Page 57 SECTION 2 Pronar T680 FIGURE 3.7 Design and diagram of hydraulic braking system (1) electro-hydraulic brake valve, (2) hydraulic cylinder, (3) hydraulic quick coupler, (4) hydraulic accumulator, (5) hydraulic socket, (6) valve connection lead, (7) information decal The main brake (pneumatic or hydraulic brake) is activated from the tractor driver's cab by depressing the brake pedal.
  • Page 58 Pronar T680 SECTION 2 in case of an inadvertent disconnection of the conduit between the trailer and the tractor, the control valve will automatically activate the trailer's brakes. Valve used in the system is equipped with a circuit causing the brakes to be applied when trailer is disconnected from the tractor, compare with figure (3.8).
  • Page 59 SECTION 2 Pronar T680 connecting the connection lead (6) and hydraulic supply conduit to tractor and after energizing the control valve. FIGURE 3.9 Electro-hydraulic brake valve (1) electro-hydraulic valve, (2) v lve operation selection lever, (3) release butt n, (4) electric coil, (A) "NO LOAD"...

  • Page 60: Hydraulic Tipping System

    Pronar T680 SECTION 2 used for supplying the trailer's valve from the tractor's electrical system. In case of an inadvertent disconnection of this lead, the brake valve will automatically activate the machine's brakes. The same emergency braking is activated by switching off the tractor's engine or deenergizing the solenoid valve.
  • Page 61 SECTION 2 Pronar T680 FIGURE 3.10 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 ATTENTION Cut-off valve (3) – figure (3.10) - limits the tipping angle of the load box when tipped to the sides and to the rear.

  • Page 62: Hydraulic Wall Unlocking System

    (1) quick coupler, (2) hydraulic conduit, (3) front cylinder, (4) rear cylinder, (5) information decal Pronar T680 trailer can be additionally equipped with one of the three versions of the hydraulic side wall unlocking systems controlled from the tractor cab. This solution ensures greater operator comfort and safety during unloading.

  • Page 63: Feeder Unit

    SECTION 2 Pronar T680 • system for unlocking the left side walls, • system for unlocking the walls on both sides of the trailer. The front side walls are unlocked using hydraulic cylinders (3) - figure (3.11)installed in the front wall. The rear side walls are unlocked by delivering the oil to the cylinders (4) placed at the rear part of the upper frame.
  • Page 64 Pronar T680 SECTION 2 FIGURE 3.12 Design of the feeder's hydraulic system (1) auger, (2) hydraulic motor, (3) hydraulic valve, (4) feeder guide, (5) winch, (6) return conduit, (7) supply conduit, (8) protection, (9) cable Loose materials are unloaded by rotating auger located in the feeder (1). The auger is driven by hydraulic motor (2), which is supplied with hydraulic oil from the tractor's external hydraulic system.

  • Page 65: Parking Brake

    SECTION 2 Pronar T680 feeder's hydraulic valve (3) – figure (3.12). Check the auger's rotation direction. If necessary, confirm that hydraulic conduits are connected correctly. The hydraulic system of the feeder is filled with L-HL32 Lotos hydraulic oil. DANGER Pay special attention to overhead electric power lines when operating the feeder.

  • Page 66: Lighting System

    Pronar T680 SECTION 2 FIGURE 3.13 Parking brake design (1) expander arm, (2) crank mechanism, (3) handbrake cable I, (4) handbrake cable II, (5) guide roller, (6) brake pulley block, (7) arm, (8) spring. 3.2.8 LIGHTING SYSTEM The trailer's electrical system is designed for 12 V DC supply. Light-emitting diodes (LED) are used as the source of light in all trailer's lights.
  • Page 67 SECTION 2 Pronar T680 FIGURE 3.14 Arrangement of electrical components and reflective lights (1) 7-pin socket, (2) front parking light, (3) side parking light, (4) rear light assembly, left side, (5) rear light assembly, right side, (6) licence plate light, (7) rear clearance light, left side, (8) rear clearance light, right side 3.21...
  • Page 68 Pronar T680 SECTION 2 FIGURE 3.15 Electrical system diagram Marking according to table (3.2). 3.22...
  • Page 69 SECTION 2 Pronar T680 TABLE 3.2 List of electrical component markings SYMBOL FUNCTION Rear light assembly, right side (LED) Rear light 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 70 Pronar T680 SECTION 2 3.24...

  • Page 71: Proper Use

    SECTION PROPER USE...

  • Page 72: Preparing For Work Before The First Use

    Pronar T680 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 73: Preparing The Trailer For The First Hitching To

    SECTION 4 Pronar T680 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 74: Hitching And Unhitching The Trailer From Tractor

    Pronar T680 SECTION 4 Perform test drive. Operating activities: hitching to/unhitching from tractor, adjustment of drawbar 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 75 SECTION 4 Pronar T680 In order to hitch the trailer to the tractor, perform the actions below in the sequence presented. Machine must be immobilised by parking brake. Hitching to tractor Immobilise trailer with parking brake. Pull brake mechanism clockwise until resistance is felt.
  • Page 76 Pronar T680 SECTION 4 Hydraulic tipping system conduit is marked with information decal (14) – table (2.1). Connect main lead supplying electrical lighting system. DANGER When hitching, there must be nobody between the trailer and the tractor. When hitching the machine, tractor driver must exercise caution and make sure that nobody is present in the hazard zone.
  • Page 77 SECTION 4 Pronar T680 Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab. Disconnect all hydraulic tipping system conduits from tractor. Disconnect electric lead. Disconnect pneumatic system conduits (applies to double conduit pneumatic system).

  • Page 78: Hitching And Unhitching The Second Trailer

    Pronar T680 SECTION 4 4.3 HITCHING AND UNHITCHING THE SECOND TRAILER A second trailer may only be hitched if it is a machine built on a dual axle chassis and if it fulfils all requirements specified in section 1. Hitching the second trailer to the tractor - trailer unit requires experience in driving an agricultural tractor with a trailer.
  • Page 79 SECTION 4 Pronar T680 Reversing tractor, drive the rear hitch of the first trailer onto the drawbar of the second trailer. 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.

  • Page 80: Loading And Securing Load

    Pronar T680 SECTION 4 Unhitching the second trailer Immobilise tractor and trailer with parking brake. Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab. Disconnect conduits of pneumatic, hydraulic and electrical systems according to the instructions contained in section (4.2)
  • Page 81 SECTION 4 Pronar T680 ATTENTION Always try to distribute the load uniformly in the load box. Do NOT exceed the trailer's maximum carrying capacity. Due to various densities of materials, the use of the total load box capacity may lead to exceeding permissible carrying capacity of the trailer.
  • Page 82 Pronar T680 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m 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 –...
  • Page 83 SECTION 4 Pronar T680 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m baled straw (lightly crushed) 80 - 90 baled straw (heavily crushed) 110 - 150 cereal mass in round bales 20 - 25 cut cereal mass in bulk trailer 35 - 75...
  • Page 84 Pronar T680 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m runner beans 780 - 870 barley 600 - 750 clover 700 - 800 grass 360 - 500 maize 700 - 850 wheat 720 - 830 oil seed rape 600 - 750...
  • Page 85 SECTION 4 Pronar T680 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 86 Pronar T680 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 87: Load Transport

    SECTION 4 Pronar T680 Materials which may cause corrosion of steel, chemical damage or react in any other way negatively affecting the trailer structure may be transported only on condition of appropriate load preparation. Materials must be tightly packed (in plastic foil sacks, plastic containers etc.).
  • Page 88 Pronar T680 SECTION 4 carrying capacity must not be exceeded as this can damage the trailer and pose a risk to the operator or other road users. • Permissible design speed and maximum speed allowed by road traffic law must not be exceeded.
  • Page 89 SECTION 4 Pronar T680 ATTENTION Prior to moving off with the trailer hitched, check whether: • pins connecting the load box with the lower frame are secured against falling out, • lug pins of wall extensions are secured against falling out.

  • Page 90: Unloading

    Pronar T680 SECTION 4 4.6 UNLOADING The trailer is equipped with hydraulic tipping system and suitable frame structure and the load box allowing tipping sideways and to the rear. Tipping of the load box is controlled from driver's cab using external tractor hydraulic system manifold.
  • Page 91 SECTION 4 Pronar T680 FIGURE 4.3 Front locks of load box wall and wall extensions (1) front side wall closing lever (2) side wall lock (3) side wall extension lock immobilise tractor and trailer with parking brake; wheel chocks may be used to...
  • Page 92 Pronar T680 SECTION 4 tipping pins and individual sockets are designed so that it is impossible to place them on the opposite diagonal side of the load box, which would damage the trailer, if the load box tipping direction was planned and set before, check that tipping...
  • Page 93 SECTION 4 Pronar T680 FIGURE 4.4 Locks of load box walls and wall extensions (1) rear side wall closing lever (2), side wall lock (3) side wall extension lock, (4) rear wall lock, (5) rear wall closing lever, (6) rear wall extension lock...
  • Page 94 Pronar T680 SECTION 4 It is recommended to use wheel chocks in order to additionally secure the trailer during unloading. When unloading high-volume materials, for example branches, the trailer's rear wall may be opened downwards. The help of a second person is recommended during unloading.
  • Page 95 SECTION 4 Pronar T680 FIGURE 4.5 Chute (1) chute slide gate, (2) chute, (3) lever, (4) locking bolt DANGER Do NOT jerk the trailer forwards if load is bulky or reluctant to pour and does not unload. Do NOT tip load box in strong gusty winds conditions.

  • Page 96: Proper Use And Maintenance Of Tyres

    Pronar T680 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 97: Using Underrun Protection Devices

    SECTION 4 Pronar T680 4.8 USING UNDERRUN PROTECTION DEVICES The trailer can be additionally equipped with the side under-run protection devices. The underrun protection devices fulfil a very important role in road safety and therefore their good technical condition should be ensured.
  • Page 98 Pronar T680 SECTION 4 FIGURE 4.6 Underrun protection device (1) underrun protection strip, (2) bracket, (3) clamping ring, (4) interlock latch 4.28...

  • Page 99: Maintenance

    SECTION MAINTENANCE...

  • Page 100: Preliminary Information

    Pronar T680 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 101: Initial Inspection Of Axle Brakes

    SECTION 5 Pronar T680 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 102 Pronar T680 SECTION 5 Check brake shoe linings for wear through the inspection opening (2) – see Figure (5.1). Check brake shoe linings for wear: • every 3 months, • if brakes overheat, • if brake cylinder piston stroke is significantly longer, •...

  • Page 103: Checking Wheel Axle Bearings For Slackness

    SECTION 5 Pronar T680 5.2.4 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5.2 Lifting jack support point (1) axle, (2) leaf spring shock absorber, (3) U bolt Preparation procedures Hitch trailer to tractor, braking tractor with parking brake. Park tractor and trailer on hard level ground.
  • Page 104 Pronar T680 SECTION 5 Checking wheel axle bearings for slackness 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 105: Adjustment Of Play Of Wheel Axle Bearings

    SECTION 5 Pronar T680 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 106: Wheel Nut Tightening

    Pronar T680 SECTION 5 FIGURE 5.3 Adjustment of wheel axle bearings (1) hub cover, (2) castellated nut, (3) cotter pin 5.2.6 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING Wheel dismounting Immobilise trailer with parking brake. Place chocks under trailer rear wheel.
  • Page 107 SECTION 5 Pronar T680 If necessary, use proper backing plates in order to prevent the lifting jack from sinking into the ground. Dismount wheel. Wheel installation Clean axle pins and nuts of contamination. Do not grease thread of nuts and pins.
  • Page 108 Pronar T680 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 109: Checking Air Pressure In Tyres, Evaluating

    SECTION 5 Pronar T680 5.2.7 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS Tyre pressure should be checked each time after changing spare wheel and not less than every month. In the event of intensive use, air pressure in tyres should be checked more frequently.

  • Page 110: Adjustment Of Mechanical Brakes

    Pronar T680 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 111 SECTION 5 Pronar T680 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 • Check technical condition of brake every 6 months.
  • Page 112 Pronar T680 SECTION 5 FIGURE 5.6 Principle of brake adjustment (1) brake cylinder piston, (2) brake cylinder membrane, (3) expander arm, (4) adjustment bolt, (5) cylinder fork, (6) position of fork pin, (7) brake cylinder bracket, (A) mark on the brake...
  • Page 113 SECTION 5 Pronar T680 Make a line (A) on the brake cylinder piston (1) to indicate the position of the maximum withdrawal of the brake cylinder piston rod when the trailer's brakes are released. Press the tractor brake pedal and mark the position of the maximum extension of the brake cylinder piston rod with a line (B).

  • Page 114: Replacement Of Parking Brake Cable And Adjustment Of Cable Tension

    Pronar T680 SECTION 5 Remove previous marks and measure the brake cylinder piston rod stroke again. If the brake cylinder piston rod stroke is outside the proper operating range, repeat the adjustment. • Every 6 months. • After repair of braking system.
  • Page 115 SECTION 5 Pronar T680 FIGURE 5.7 Adjustment of parking brake cable tension (1) brake crank mechanism, (2) rear axle, (3) hand brake cable I; l=2230mm, (4) hand brake cable II; l=900mm, (5) pulley block of parking brake, (6) shackle, (7) U-bolt clamp, (8) clamp...
  • Page 116 Pronar T680 SECTION 5 Dismantle proper shackles (6) at the ends of the cable to be replaced. Loosen nuts (8) of U-bolt clamps (7) located at the ends of the cable to be replaced. If necessary, dismount pins and guide rollers (9).

  • Page 117: Pneumatic System Maintenance

    SECTION 5 Pronar T680 Clamp jaws must be placed on the side of the cable under load. The first clamp should be placed directly on the thimble. ATTENTION Clamp jaws must be placed on the side of the load bearing cable - see figure (5.8).

  • Page 118: Checking Air Tightness And Visual Inspection Of

    Pronar T680 SECTION 5 • cleaning the air filter (filters), • draining water from air tank, • cleaning drain valve, • cleaning and maintaining pneumatic conduit connections, DANGER Do not use the trailer when brake system is out of order.

  • Page 119: Cleaning The Air Filters

    SECTION 5 Pronar T680 designed to facilitate detecting air leaks. Damaged components should be replaced or repaired. If leaks appear at connections then tighten the connections. If air continues to escape, replace connection components or seals with new ones. Check system tightness: •...
  • Page 120 Pronar T680 SECTION 5 FIGURE 5.9 Air filter (1) securing slide lock, (2) air filter cover Required maintenance actions Reduce pressure in supply conduit. Pressure in conduit can be reduced by pressing the head of the pneumatic connection until resistance is felt.

  • Page 121: Draining Water From Air Tank

    SECTION 5 Pronar T680 5.3.4 DRAINING WATER FROM AIR TANK Draining water from air tank: • every seven days of use. FIGURE 5.10 Draining water from air tank (1) air tank, (2) drain valve, (3) control connector Required maintenance actions...

  • Page 122: Cleaning The Drain Valve

    Pronar T680 SECTION 5 The compressed air in the tank causes the removal of water to the exterior. After release of the valve stem, the valve should automatically close and stop airflow 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 123: Replacement Of Pneumatic Conduit

    SECTION 5 Pronar T680 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. Contact of pneumatic connector seals with oils, grease, petrol etc. may cause damage and accelerate ageing process.

  • Page 124: Hydraulic System Maintenance

    Pronar T680 SECTION 5 TABLE 5.3 Tightening torques for pneumatic system fittings Tightening torque PART NAME THREAD (NM) M12x1.5 M14x1.5 Pneumatic system fittings M16x1.5 M18x1.5 M22x1.5 Push-in fittings are used for connecting conduits with pneumatic system components. The fittings enable simple, fast and tight connection by pushing the conduits in. If leaks appear at connections, the user may tighten the fitting by himself using a tightening torque according to table (5.3).

  • Page 125: Checking Hydraulic System Tightness

    SECTION 5 Pronar T680 5.4.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS Required maintenance actions Hitch trailer to tractor. Connect all hydraulic system conduits according to maintenance instructions. Clean connections and cylinders (tipping cylinder and possibly hydraulic brake cylinders). Conduct test tipping of load box sideways and backwards.

  • Page 126: Replacement Of Hydraulic Conduits

    Pronar T680 SECTION 5 Inspection of hydraulic couplers and sockets: • each time before connecting trailer to tractor or before connecting the second trailer. 5.4.4 REPLACEMENT OF HYDRAULIC CONDUITS Rubber hydraulic conduits must be replaced every 4 years regardless of their technical condition.

  • Page 127: Trailer Lubrication

    SECTION 5 Pronar T680 Check completeness of all reflectors. Check correct mounting of the slow-moving vehicle warning sign holder. Before driving on to public road, check that the tractor is equipped with a warning reflective triangle. Checking technical condition of electrical system: each time while connecting the trailer.
  • Page 128 Pronar T680 SECTION 5 ITEM LUBRICATION POINT Tipping cylinder ball bearing Parking brake mechanism Spring sliding surface Leaf spring pin Drawbar pin Articulated joints and sockets for installation of load box. Wall extension lug Pin and lock of walls Front side wall locking lever...
  • Page 129 SECTION 5 Pronar T680 Trailer lubrication should be performed with the aid of a manually or foot operated grease gun, filled with recommended grease. Before commencing work insofar as is possible remove old grease and other contamination. Remove and wipe off excess oil or grease.
  • Page 130 Pronar T680 SECTION 5 FIGURE 5.12 Trailer's lubrication points, part 1 5.32...
  • Page 131 SECTION 5 Pronar T680 FIGURE 5.13 Trailer's lubrication points, part 2 5.33...

  • Page 132: Consumables

    Pronar T680 SECTION 5 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. In the event of application of different types of oil make certain that both hydraulic substances may be mixed together.

  • Page 133: Lubricants

    SECTION 5 Pronar T680 with the use of carbon dioxide, foam or steam extinguishers. Do not use water to quench oil fires. 5.7.2 LUBRICANTS For heavily loaded parts it is recommended to apply lithium greases with addition of molybdenum disulphide (MOS ) or graphite.
  • Page 134 Pronar T680 SECTION 5 • Using pressure washer increases washing effectiveness, but particular care must be taken during work. During washing, washer nozzle may not be closer than 50 cm from the surface being cleaned. • Water temperature should not exceed 55 •...

  • Page 135: Storage

    SECTION 5 Pronar T680 • After completed washing wait until the 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 136: Tightening Torque For Nut And Bolt

    Pronar T680 SECTION 5 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS Unless other tightening parameters are given, during maintenance repair work apply appropriate torque to tighten nut and bolt connections. Recommended tightening torque for the most frequently used nut and bolt connections are given in table below. Given values apply to non-lubricated steel bolts.

  • Page 137: Installation And Disassembly Of The Frame And Tarpaulin Cover

    SECTION 5 Pronar T680 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 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 138 Pronar T680 SECTION 5 attach centre apex (3) to the middle stakes, screw down ridge pipe (4), screw down two rim pipes (5), place tarpaulin cover (7) so that it rests on the limiters, secure the tarpaulin cover with grabs (13) riveted to the right wall of load box, unroll tarpaulin cover using rolling beam (6).
  • Page 139 SECTION 5 Pronar T680 FIGURE 5.15 Frame with tarpaulin cover (1) front apex, (2) rear apex, (3) centre apex, (4) ridge pipe, (5) rim pipe, (6) rolling beam, (7) tarpaulin cover, (8) tarpaulin cover tensioner, (9) tensioner catch (10) clamp, (11) tensioner hook, (12) expander hook, (13) grab, (14) expander, (15) limiter 5.41...

  • Page 140: Installation And Dismounting Of Wall

    Pronar T680 SECTION 5 5.12 INSTALLATION AND DISMOUNTING OF WALL EXTENSIONS Installation of wall extensions Secure rear wall extension stakes to rear wall stakes. Secure middle wall extension stakes to wall middle stakes. Install front wall extension. Install rear wall extension.

  • Page 141: Adjustment Of Drawbar Position

    SECTION 5 Pronar T680 5.13 ADJUSTMENT OF DRAWBAR POSITION Adjustment of drawbar position is achieved by moving the spring catch (2) in chosen direction. The spring tension (1) is not changed by this operation. The spring is designed solely for maintaining the set drawbar height. In many upper transport hitch solutions of tractors it is possible to adjust its height to the hitch of the machine.

  • Page 142: Troubleshooting

    Pronar T680 SECTION 5 TROUBLESHOOTING TABLE 5.8 Troubleshooting FAULT CAUSE REMEDY Brake system conduits not Connect brake conduits (applies connected to pneumatic systems) Problem with moving off. Applied parking brake Release parking brake. Damaged pneumatic Replace. system connection conduits Tighten, replace washers or seal Leaking connections sets, replace conduits.
  • Page 143 SECTION 5 Pronar T680 FAULT CAUSE REMEDY oil in tractor or in trailer Insufficient tractor hydraulic pump output, damaged Check tractor hydraulic pump. tractor hydraulic pump. Check cylinder piston rod (bending, corrosion), check Damaged or contaminated cylinder for tightness (cylinder...
  • Page 144 Pronar T680 SECTION 5 5.46...
  • Page 145 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 146 …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 147 Tyre dimensions TRAILER VERSION AXLE FRONT / REAR 385 / 65 R22.5 18PR 500-60R22.5; 165A8 T680 425 / 65 R22.5 TL 550/45 R22,5 151E - wheel disc 11.75 x 22.5’’ ET=0 - wheel disc 16.00x22.5H2 ET= - 40 - wheel disc 13.00x22.5" ET=0...

This manual is also suitable for:

T680pT680hT680u

Table of Contents