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INTRODUCTION
Information contained herein is current at date of publication. As a result of improvements,
some numerical values and illustrations contained in this publication may not correspond to the
factual specification of the machine supplied to the user. The manufacturer reserves the right to
introduce design changes in machines produced that facilitate operation and improve the quality
of their work, without making minor amendments to this Operator's Manual.
This Operator's Manual is an integral part of the machine's documentation. Before using the
machine, the user must carefully read
recommendations. This guarantees safe operation and ensures failure-free work of the
machine. 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 T655 no
wall extensions or with 0.4 m load box wall extensions.
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.
MANUFACTURER'S ADDRESS:
CONTACT TELEPHONES
PRONAR Sp. z o.o.
ul. Mickiewicza 101A
17-210 Narew
+48 085 681 63 29
+48 085 681 63 81
this Operator's Manual and observe
+48 085 681 64 29
+48 085 681 63 82
all

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Summary of Contents for PRONAR T655

  • Page 1 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 T655 no wall extensions or with 0.4 m load box wall extensions.
  • Page 2 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 3 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 5: 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 SERIAL NUMBERS PROPER USE EQUIPMENT TERMS & CONDITIONS OF WARRANTY TRANSPORT 1.5.1 TRANSPORT ON VEHICLE 1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.11 ENVIRONMENTAL HAZARDS 1.12 WITHDRAWAL FROM USE 1.13...
  • Page 6 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 3.13 3.2.5 PARKING BRAKE 3.15 3.2.6 LIGHTING SYSTEM 3.17 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 TRACTOR HITCHING AND UNHITCHING THE TRAILER FROM...
  • Page 7 5.2.5 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING 5.2.6 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS 5.10 5.2.7 ADJUSTMENT OF MECHANICAL BRAKES 5.11 5.2.8 ADJUSTMENT OF OVERRUN BRAKE CABLE TENSION, REPLACING THE BRAKE CABLE 5.13 5.2.9 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE TENSION.
  • Page 8 5.7.2 LUBRICANTS 5.33 CLEANING THE TRAILER 5.33 STORAGE 5.35 5.10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.36 5.11 INSTALLATION AND DISASSEMBLY OF WALL EXTENSIONS (OPTIONAL EQUIPMENT) 5.37 5.12 ADJUSTMENT OF DRAWBAR POSITION 5.38 5.13 TROUBLESHOOTING 5.39...
  • Page 9: Basic Information

    SECTION BASIC INFORMATION...
  • Page 10: Identification

    Pronar T655 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 11: Axle Identification

    SECTION 1 Pronar T655 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 Markings on data plate ITEM MARKING General description and purpose Symbol / type of trailer...
  • Page 12: List Of Serial Numbers

    Pronar T655 SECTION 1 The serial number of the wheel axle and its type are stamped onto the data plate (2) secured to the wheel axle beam (1) – figure (1.2). 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 13 SECTION 1 Pronar T655 ATTENTION The trailer must not be used for purposes other than those for which it is intended. The user MUST NOT: • transport people, animals, hazardous materials, chemically aggressive loads that will corrode the structural elements of the trailer (causing corrosion of steel, destruction of paint coat, dissolving plastic elements and destruction of rubber elements etc.),...
  • Page 14 Pronar T655 SECTION 1 • are familiar with the contents of this publication and with the contents of the agricultural tractor Operator's Manual, • have been trained in trailer operation and work safety, • have the required authorisation to drive carrying vehicles and are familiar with the road traffic regulations and transport regulations.
  • Page 15: Equipment

    SECTION 1 Pronar T655 Tractor requirements depend on trailer accessories. 1.3 EQUIPMENT TABLE 1.3 Trailer's equipment EQUIPMENT • Operator’s Manual • Warranty Book • Single line pneumatic system or overrun brake • Slow-moving vehicle warning sign • Reflective warning triangle •...
  • Page 16: Terms & Conditions Of Warranty

    SECTION 1 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 17: Transport

    SECTION 1 Pronar T655 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 18 Pronar T655 SECTION 1 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 19: Independent Transport By The User

    SECTION 1 Pronar T655 FIGURE 1.3 Positioning of transport lugs (1) transport lug, (2) longitudinal member of upper frame, (3) longitudinal member of lower frame DANGER Incorrect use of securing measures may cause an accident. 1.5.2 INDEPENDENT TRANSPORT BY THE USER If a purchased trailer is transported by the user, the user must read the Operator's Manual of the trailer and adhere to the recommendations contained therein.
  • Page 20: Environmental Hazards

    Pronar T655 SECTION 1 ATTENTION Before transporting independently, the tractor driver must carefully read this Operator's Manual and observe its recommendations. 1.6 ENVIRONMENTAL HAZARDS A hydraulic oil leak constitutes a direct threat to the natural environment owing to its limited biodegradability.
  • Page 21: Withdrawal From Use

    SECTION 1 Pronar T655 The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil. ATTENTION Waste oil should only be taken to the appropriate facility dealing with the re-use of this type of waste. Do NOT throw or pour oil into sewerage or water tanks.
  • Page 22 Pronar T655 SECTION 1 1.14...
  • Page 23: Safety Advice

    SECTION SAFETY ADVICE...
  • Page 24: Basic Safety Rules

    Pronar T655 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 25: Hitching And Unhitching From Tractor

    SECTION 2 Pronar T655 must be in good condition to fully protect the persons working on them against falling. The above procedure should be performed by at least two persons. 2.1.2 HITCHING AND UNHITCHING FROM TRACTOR • Do NOT hitch the trailer to tractor if the tractor does not fulfil the requirements specified by the Manufacturer (minimum tractor power demand, wrong hitch, etc.)
  • Page 26: Loading And Unloading

    Pronar T655 SECTION 2 controlling this valve is factory adjusted by the Manufacturer and must not be changed when the trailer is used. • In the event of malfunction of the hydraulic or pneumatic system, do not use the trailer until the malfunction is corrected.
  • Page 27 SECTION 2 Pronar T655 • Use only original tipping pins with a handle. Use of non-original pins could damage the trailer. • The trailer is not intended for transporting people, animals or hazardous materials. • The load must be arranged in such a way that it does not threaten the stability of the trailer and does not hinder driving.
  • Page 28: Transporting The Machine

    Pronar T655 SECTION 2 • If the load does not pour from the raised load box immediately cease unloading. The trailer may only be tipped again after removing the object, which prevented the load from pouring. • In winter, particular attention must be paid to loads which may freeze during transport.
  • Page 29 SECTION 2 Pronar T655 chocks or other objects without sharp edges placed under the front and back wheels. • Before moving check that the trailer is correctly hitched to the tractor (in particular check security of hitching pin). • Vertical load borne by the trailer drawbar eye affects the steering of the agricultural tractor.
  • Page 30 Pronar T655 SECTION 2 properly closed. Check correctness of the securing of linking cables and a security of cable release mechanism. • 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 31 SECTION 2 Pronar T655 FIGURE 2.2 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, - figure (2.2), a slow-moving vehicle warning sign should be placed on the trailer's rear load box wall. The warning sign (1) should be attached using the specifically prepared holder (2), riveted to the rear wall of the load box.
  • Page 32: Tyres

    Pronar T655 SECTION 2 2.1.6 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 33 SECTION 2 Pronar T655 • 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 34 Pronar T655 SECTION 2 poisonous for people and animals. Welding work should be carried out in a well lit and well ventilated space. • 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 35: Residual Risk

    Pronar T655 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 36: 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 37 SECTION 2 Pronar T655 DECAL MEANING Before climbing onto the trailer, switch off tractor's engine and remove key from ignition. Caution! Danger of electric shock. Keep a safe distance from overhead electric power lines during unloading. Danger of crushing Do NOT perform any...
  • Page 38 Pronar T655 SECTION 2 DECAL MEANING Grease the trailer according to the recommendations in the Operator's Manual Conduit supplying hydraulic brake system. Conduit supplying hydraulic tipping system. Trailer carrying capacity Information about the coupling of the trailer using only hitch for single-axle trailers Air pressure in the tyres.
  • Page 39 SECTION 2 Pronar T655 FIGURE 2.3 Locations of information and warning decals 2.17...
  • Page 40 Pronar T655 SECTION 2 2.18...
  • Page 41: Design And Operation

    SECTION DESIGN AND OPERATION...
  • Page 42: Technical Specification

    Pronar T655 SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical specification CONTENTS UNIT T655 Trailer dimensions Total length 4,425 Total width 1,595 Total height 1,270 Internal load box dimensions Length 2,910 Width 1,410 Height Weight and carrying capacity Tare weight...
  • Page 43: Trailer Construction

    SECTION 3 Pronar T655 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. Lower frame design depends on configuration of a given trailer version. The main support elements are two longitudinal members connected with crossbars.
  • Page 44 Pronar T655 SECTION 3 FIGURE 3.1 Trailer chassis (1) lower frame, (2) tipping cylinder socket, (3) lights support beam, (4) wheel axle, (5) drawbar, (6) rear beam, (7) front crossbar, (8) box support, (9) trailer support, (10) straight parking stand...
  • Page 45 SECTION 3 Pronar T655 FIGURE 3.2 Lower frame versions (1) lower frame, (2) drawbar eye for connection with upper transport hitch (3) drawbars for connection with single-axle trailers, (4) overrun drawbar...
  • Page 46: Load Box

    Pronar T655 SECTION 3 Lower frame design depends on drawbar used and type of main brakes. The method of drawbar attachment to the lower frame is the most important difference between the versions. Design details of individual versions of the lower frame are presented on figure (3.2).
  • Page 47 SECTION 3 Pronar T655 FIGURE 3.3 Load box – rear view (1) upper frame, (2) side wall, (3) front wall, (4) rear wall, (5) rear wall stake, (6) lever...
  • Page 48: Main Brake

    Pronar T655 SECTION 3 If the trailer is equipped with wall extensions, an additional, folding step facilitating entrance to load box is fixed to the front wall. In this equipment version, an access ladder is also fixed to the front wall extension.
  • Page 49 SECTION 3 Pronar T655 • overrun brake, figure (3.8). FIGURE 3.5 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, (9)
  • Page 50 Pronar T655 SECTION 3 FIGURE 3.6 Design and diagram of the single conduit pneumatic braking system (1) air tank, (2) control valve, (3) brake force regulator (option), (4) pneumatic cylinder, (5) line connection (black), (6) air filter, (7) air tank control connector, (8) pneumatic cylinder...
  • Page 51 SECTION 3 Pronar T655 with a circuit causing the brakes to be applied when the trailer is disconnected from the tractor, compare figure (3.9). When compressed air conduit is connected to the tractor, the device automatically applying the brakes now changes its position to allow normal brake operation.
  • Page 52 Pronar T655 SECTION 3 FIGURE 3.8 Overrun brake (1) overrun drawbar, (2) wheel axle with overrun brake, (3) handbrake lever, (4) steel cable, (5) bracket, (6) guide roller Three-step brake force regulator (2)- figure (3.90), adjusts braking force depending on setting.
  • Page 53: Hydraulic Tipping System

    SECTION 3 Pronar T655 FIGURE 3.9 Control valve and braking force regulator (1) control valve, (2) braking force regulator, (3) trailer parking brake release button, (4) work selection regulator lever, (A) position "NO LOAD”, (B) position "HALF LOAD”, (C) position "FULL LOAD”...
  • Page 54 Pronar T655 SECTION 3 FIGURE 3.10 Hydraulic tipping system design and diagram (1) telescopic cylinder, (2) cut-off valve, (3) quick coupler, (4) control cable, (5) guide roller, (6) information decal On the connection line, in the vicinity of socket (3) there is a decal (6) identifying the supply line of the hydraulic system tipping circuit.
  • Page 55: Parking Brake

    SECTION 3 Pronar T655 The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil. 3.2.5 PARKING BRAKE The parking brake is used to immobilise and prevent the trailer from moving while standing motionless. Three versions of parking brake are available. The main difference between the parking brake versions is the activating mechanism: •...
  • Page 56 Pronar T655 SECTION 3 FIGURE 3.11 Parking brake housing with crank mechanism (1) crank mechanism, (2) parking brake lever in overrun drawbar, (3) parking brake lever, (4) cable (5) guide roller, (6) securing button 3.16...
  • Page 57: Lighting System

    SECTION 3 Pronar T655 3.2.6 LIGHTING SYSTEM FIGURE 3.12 Electrical system diagram Marking according to table (3.2) The trailer electrical system is designed for supply from direct current source of 12 V. Connection of the trailer electrical system with the tractor should be made through an appropriate connection lead delivered with the new trailer.
  • Page 58 Pronar T655 SECTION 3 SYMBOL FUNCTION Right license plate light Left license plate light Front right parking light Front left parking light FIGURE 3.13 Arrangement of electrical system components and reflectors – rear view (1) rear left lamp assembly, (2) rear right lamp assembly, (3) license plate light, (4) triangular reflector, (5) rear 7-pin socket 3.18...
  • Page 59 SECTION 3 Pronar T655 FIGURE 3.14 Arrangement of electrical system components and reflectors – front view (1) front parking light, (2) front 7-pin socket, (3) white reflector light, (4) orange reflector TABLE 3.3 Socket connection marking X7P MARKING FUNCTION Ground...
  • Page 60 Pronar T655 SECTION 3 MARKING FUNCTION Rear right parking light Right indicator 3.20...
  • Page 61: Correct Use

    SECTION CORRECT USE...
  • Page 62: Preparing For Work Before The First Use

    Pronar T655 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 use. This does not release the user from an obligation to check the machine's condition after delivery and before first use.
  • Page 63: Preparing The Trailer For The First Hitching To Tractor

    SECTION 4 Pronar T655 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 and drawbar are properly tightened.
  • Page 64: Hitching And Unhitching The Trailer From Tractor

    Pronar T655 SECTION 4 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 65 SECTION 4 Pronar T655 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 – if trailer is equipped with standard parking brake.
  • Page 66 Pronar T655 SECTION 4 FIGURE 4.1 Trailer support (1) support, (2) crank, (3) wheel, (4) pedal Connect pneumatic system conduits (applies to single conduit pneumatic system): Connect pneumatic conduit marked black with black socket in tractor. Connect hydraulic brake system lines (applies to trailer version with hydraulic brake system).
  • Page 67 SECTION 4 Pronar T655 Turning crank (2) – figure (4.1) raise support wheel. Press support pedal (4) and holding ring in hand (3) place it in transport position. If the trailer is equipped with a straight support, figure (4.2), after completed hitching, release cotter pin (2), raise maximally the support foot and secure it again with the cotter pin.
  • Page 68 Pronar T655 SECTION 4 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. When connecting the hydraulic conduits to the tractor, make sure that the hydraulic system of the tractor and the hydraulic system of the trailer are not under pressure.
  • Page 69 SECTION 4 Pronar T655 Unhitching the trailer In order to unhitch the trailer from the tractor follow these steps. Immobilise tractor and trailer with parking brake. Turn off tractor engine. Ensure that unauthorised persons do not have access to the tractor cab.
  • Page 70: Loading And Securing Load

    Pronar T655 SECTION 4 DANGER Exercise caution when unhitching the trailer from the tractor. Ensure good visibility. Unless it is necessary, do not go between tractor and trailer. Before disconnecting conduits and drawbar eye, close tractor cab and secure it against access by unauthorised persons.
  • Page 71 SECTION 4 Pronar T655 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 72 Pronar T655 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m Building materials: cement 1 200 – 1 300 dry sand 1 350 – 1 650 wet sand 1 700 – 2 050 solid bricks 1 500 – 2 100 hollow bricks 1 000 –...
  • Page 73 SECTION 4 Pronar T655 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m cut dry straw in stack 40 - 100 baled straw (lightly crushed) 80 - 90 baled straw (heavily crushed) 110 - 150 cut cereal mass in bulk trailer 35 - 75...
  • Page 74 Pronar T655 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 75 SECTION 4 Pronar T655 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 76 Pronar T655 SECTION 4 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 observe the instructions for transporting and handling the load.
  • Page 77: Load Transport

    SECTION 4 Pronar T655 etc.). During transport, packaging contents may not come into contact with load box. Therefore, ensure the appropriate tightness of containers. Final remarks Due to diversity of materials, tools, methods of fixing and securing the load, it is impossible to describe all methods of loading.
  • Page 78 Pronar T655 SECTION 4 • Vertical load borne by the trailer drawbar eye affects the steering of the agricultural tractor. • The trailer must not be overloaded, loads must be uniformly distributed so that the maximum permissible trailer axle and hitch loads are not exceeded. The trailer's maximum carrying capacity must not be exceeded as this can damage the trailer and pose a risk to the operator or other road users.
  • Page 79: Unloading

    SECTION 4 Pronar T655 dangerous as there is a risk of the wheels sliding down the slope or the slope collapsing. • Speed must be sufficiently reduced before making a turn or driving on an uneven road or a slope.
  • Page 80 Pronar T655 SECTION 4 tractor and trailer must be placed to drive forwards on flat and hard ground, immobilise tractor and trailer with parking brake, FIGURE 4.3 Bolting of tipping pins (1) tipping pin I, (2) tipping pin II, (3) tipping pin holder TIPPING PINS (1) AND (2) –...
  • Page 81 SECTION 4 Pronar T655 FIGURE 4.4 Wall closures (1) left wall locking lever, (2) rear wall locking lever, (3) side wall lock (rear left), (4) rear wall lock (left), (5) wall extension lug grip (3) of correctly locked pin is vertical (directed downward) – figure (4.3),...
  • Page 82: Proper Use And Maintenance Of Tyres

    Pronar T655 SECTION 4 before moving off make sure that tipping pins are in correct position, i.e. with the handle facing downward. If a second trailer is hitched, it should be unloaded only when the load box of the first trailer has been lowered and the hydraulic tipping system control lever is placed in position 2 -- tipping of the second trailer.
  • Page 83 SECTION 4 Pronar T655 work, check the nut tightening at least every 100 km. The inspection should be repeated individually if a wheel has been removed from the wheel axle. • Regularly check and maintain correct air pressure in tyres according to Operator's Manual (especially if trailer is not used for a longer period).
  • Page 84 Pronar T655 SECTION 4 4.24...
  • Page 85: Maintenance

    SECTION MAINTENANCE...
  • Page 86: Preliminary Information

    Pronar T655 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 87: Initial Inspection Of Axle Brakes

    SECTION 5 Pronar T655 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 88: Checking Wheel Axle Bearings For Slackness

    Pronar T655 SECTION 5 5.2.3 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5.1 Lifting jack support point (1) wheel axle, (2) U bolt, (3) lower frame Preparation procedures Hitch trailer to tractor, immobilize tractor with parking brake. Park tractor and trailer on hard level ground.
  • Page 89 SECTION 5 Pronar T655 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 90: Adjustment Of Axle Bearing Slackness

    Pronar T655 SECTION 5 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 91: Mounting And Dismounting Wheel, Inspection Of Wheel Nut Tightening

    SECTION 5 Pronar T655 FIGURE 5.2 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 92 Pronar T655 SECTION 5 Place lifting jack and lift the trailer. Dismount wheel. Wheel mounting Clean axle pins and nuts of contamination. Do not grease thread of nuts and pins. Check condition of pins and nuts, if necessary replace them.
  • Page 93 SECTION 5 Pronar T655 FIGURE 5.3 Sequence of nut tightening (1) - (6) sequence of nut tightening, (L) spanner length, (F) user weight Check the wheel nut tightening: • after first use, • after first travel with load, • after travelling the first 1,000 km, •...
  • Page 94: Checking Air Pressure In Tyres, Evaluating Technical Condition Of Tyres And Steel Wheels

    Pronar T655 SECTION 5 TABLE 5.1 Spanner arm WHEEL TIGHTENING TORQUE BODY WEIGHT (F) ARM LENGTH (L) [Nm] [kg] 0.30 0.35 0.40 0.45 5.2.6 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.
  • Page 95: Adjustment Of Mechanical Brakes

    SECTION 5 Pronar T655 Proper technical condition and appropriate maintenance of wheels significantly extends the life of these components and ensures appropriate level of safety to trailer users. Checking air pressure in tyres and visual inspection of steel wheels: • every 1 month of use, •...
  • Page 96 Pronar T655 SECTION 5 FIGURE 5.4 Adjustment of axle mechanical brakes (1) expander arm, (2) expander shaft, (3) equalising bar, (4) cylinder fork Adjustment should be conducted separately for each wheel. Expander arm (1) should be moved by one notch in chosen direction. If the extent of cylinder action is still incorrect, move the lever again.
  • Page 97 SECTION 5 Pronar T655 If it is necessary to dismantle the equalising bar, remember or mark its original position in the expander arms. The mounting position is selected by the Manufacturer and may not be changed. The equalising bar mounting depends on the brake system installed and the trailer variant.
  • Page 98: Adjustment Of Overrun Brake Cable Tension

    Pronar T655 SECTION 5 FIGURE 5.5 Adjustment of overrun brake cable tension (1) tensioner, (2) U-shaped clamp, (3) steel cable, (4) counter nut Checking and adjustment of overrun brake: • every 12 months, • if needed. Brake repairs, changes of brake linings etc. may be only undertaken in authorised service points.
  • Page 99: Replacement Of Parking Brake Cable And Adjustment Of Cable Tension

    SECTION 5 Pronar T655 Loosen tensioner (1) as much as possible – figure (5.5). Unscrew the nuts of U-shaped clamps (2). Dismantle brake cable. Mount thimble and U-shaped clamps. Attach the end of cable to overrun drawbar pin. Connect the other end of cable to tensioner (1), mount U-shaped clamps.
  • Page 100 Pronar T655 SECTION 5 FIGURE 5.6 Adjustment of parking brake cable tension (1) brake crank mechanism, (2) cable clamp nuts (3) hand brake cable, (4) guide roller Adjustment of parking brake cable tension Hitch trailer to tractor. Park trailer and tractor on level surface.
  • Page 101: Pneumatic System Maintenance

    SECTION 5 Pronar T655 Length of parking brake cable should be so selected that at total release of working and parking brake the cable would be loose and hanging by 1 - 2 cm. Adjustment of parking brake cable tension should be conducted in the event of: •...
  • Page 102: Checking Air Tightness And Visual Inspection Of Pneumatic System

    Pronar T655 SECTION 5 • 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. 5.3.2 CHECKING AIR TIGHTNESS AND VISUAL INSPECTION OF PNEUMATIC...
  • Page 103 SECTION 5 Pronar T655 with the system components. It is recommended to use preparations commercially available 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.
  • Page 104 Pronar T655 SECTION 5 FIGURE 5.7 Air filter (1) securing slide lock, (2) air filter cover DANGER Before proceeding to dismantle filter, reduce pressure in supply conduit. While dismounting the filter slide gate, hold the cover with the other hand. Stand away from filter cover vertical direction.
  • Page 105 SECTION 5 Pronar T655 Cleaning the air filter (filters): • every 3 months of use, 5.3.4 DRAINING WATER FROM AIR TANK FIGURE 5.8 Draining water from air tank (1) drain valve, (2) air tank, Scope of maintenance activities Open out drain valve (1) placed in lower part of tank (2) – the tank is placed on brackets of right longitudinal frame of lower frame.
  • Page 106: Cleaning The Drain Valve

    Pronar T655 SECTION 5 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. Draining water from air tank: • every seven days of use.
  • Page 107: Hydraulic System Maintenance

    SECTION 5 Pronar T655 DANGER Unreliable and dirty trailer connections may cause unreliability and faulty functioning of braking system. Damaged connection body or socket for connecting the second trailer should be replaced. In the event of damage to cover or seal, change these elements for new reliable elements.
  • Page 108: Checking Hydraulic System Tightness

    Pronar T655 SECTION 5 DANGER Do NOT tip trailer with unreliable hydraulic tipping system. Do NOT use the trailer if hydraulic brake system is unreliable. 5.4.2 CHECKING HYDRAULIC SYSTEM TIGHTNESS Scope of maintenance activities Hitch trailer to tractor. Connect all hydraulic system conduits according to maintenance instructions.
  • Page 109: Checking Technical Condition Of Hydraulic Couplers And Sockets

    SECTION 5 Pronar T655 5.4.3 CHECKING TECHNICAL CONDITION OF HYDRAULIC COUPLERS AND SOCKETS. Hydraulic couplers and sockets designed for connection with second trailer must be in good working condition and kept clean. Each time before connecting, check if sockets in tractor or connections of second trailer are maintained in good working condition.
  • Page 110: Replacement Of Bulbs

    Pronar T655 SECTION 5 • changing bulbs ATTENTION Do NOT travel with out of order lighting system. Damaged lamp lenses, and burned-out bulbs must be replaced immediately before travelling. Lost or damaged reflectors must be replaced. Scope of maintenance activities Connect trailer to tractor with appropriate connection lead.
  • Page 111: Trailer Lubrication

    SECTION 5 Pronar T655 TABLE 5.3 List of bulbs NUMBER BULB / QUANTITY LAMP LAMP TYPE IN 1 LAMP LAMPS R10W / 1 pc. Rear left lamp assembly WE 549L P21W / 2 pcs R10W / 1 pc. Rear right lamp assembly...
  • Page 112 Pronar T655 SECTION 5 TABLE 5.4 Trailer lubrication schedule ITEM LUBRICATION POINT Hub bearing Drawbar eye Expander shaft sleeve in drum hub Overrun drawbar components Sockets of tipping cylinder and cylinder suspension Tipping cylinder ball bearing Parking brake mechanism Parking brake guide roller pins Articulated joints and sockets for installation of load box.
  • Page 113 SECTION 5 Pronar T655 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 ordinary machine oil, silicon grease in aerosol 5.29...
  • Page 114 Pronar T655 SECTION 5 FIGURE 5.9 Trailer's lubrication points, part 1 5.30...
  • Page 115 SECTION 5 Pronar T655 FIGURE 5.10 Trailer's lubrication points, part 2 5.31...
  • Page 116: Consumables

    Pronar T655 SECTION 5 During trailer operation, the user is obliged to observe lubrication instructions according to attached lubrication schedule. 5.7 CONSUMABLES 5.7.1 HYDRAULIC OIL Always adhere to the principle that the oil in the trailer hydraulic system and in the tractor hydraulic system are of the same type.
  • Page 117 SECTION 5 Pronar T655 event of contact of oil with eye, rinse with large quantity of water and in the event of the occurrence of irritation consult a doctor. Hydraulic oil in normal conditions is not harmful to the respiratory tract. A hazard only occurs when oil is strongly atomised (oil vapour), or in the case of fire during which toxic compounds may be released.
  • Page 118 Pronar T655 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 119 SECTION 5 Pronar T655 should be maintained with the aid of special preparations after previous thorough washing. • 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.
  • Page 120 Pronar T655 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 121 SECTION 5 Pronar T655 FIGURE 5.11 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 WALL EXTENSIONS (OPTIONAL EQUIPMENT) DANGER Installation and dismounting of wall extensions should be carried out with the use of appropriate platforms, ladders or when standing on a ramp.
  • Page 122 Pronar T655 SECTION 5 Install rear wall extension. Install side wall extensions. First place upper pins of extension in appropriate rear stake locks and front walls, and after that secure base of extensions with the aid of pin lugs to upper part of side walls.
  • Page 123 SECTION 5 Pronar T655 FIGURE 5.12 Adjustment of drawbar position (1) drawbar with fixed eye, (2) nut and bolt connection 5.13 TROUBLESHOOTING TABLE 5.8 Troubleshooting FAULT CAUSE REMEDY Brake system conduits not Connect brake conduits (applies connected to pneumatic systems) Applied parking brake Release parking brake.
  • Page 124 Pronar T655 SECTION 5 FAULT CAUSE REMEDY Excessive bearing Check slackness and adjust if slackness needed Noise in axle hubs Damaged bearings Replace bearings Damaged hub parts Replace Check pressure on tractor pressure gauge, wait till compressor fills tank to required pressure.
  • Page 125 SECTION 5 Pronar T655 FAULT CAUSE REMEDY Check and make certain that Damaged hydraulic hydraulic conduits are tight, not conduits fractured and properly tightened. If necessary, replace or tighten. 5.41...
  • Page 126 Pronar T655 SECTION 5 5.42...
  • Page 127 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
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  • Page 129 ANNEX A TRAILER VERSION TYRES WHEEL DISC T655 10.0/75-15.3 122 A8 9.00x15.3"...

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