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PRONAR T024 Manual

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Thank you for purchasing our trailer. In the interests of your
safety and care for the reliability and durability of the machine,
we ask that you familiarise yourself with the content of this
manual.
Remember!!!
Before using the trailer for the first time, check if the wheels
are properly tightened!!! Regularly check the technical
condition of the machine in accordance with the attached
schedule.

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  • Page 1 Thank you for purchasing our trailer. In the interests of your safety and care for the reliability and durability of the machine, we ask that you familiarise yourself with the content of this manual. Remember!!! Before using the trailer for the first time, check if the wheels are properly tightened!!! Regularly check the technical condition of the machine in accordance with the attached schedule.
  • 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 T024. 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 9: 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 INTENDED USE ACCESSORIES WARRANTY TERMS & CONDITIONS TRANSPORTATION 1.10 1.5.1 TRANSPORT ON VEHICLE 1.10 1.5.2 INDEPENDENT TRANSPORT BY THE USER 1.12 ENVIRONMENTAL HAZARDS 1.12 DISPOSAL 1.14...
  • Page 10 3.2.1 CHASSIS 3.2.2 SIDE UNDER-RUN PROTECTION DEVICES 3.2.3 MAIN BRAKE 3.2.4 PARKING BRAKE 3.10 3.2.5 ELECTRIC LIGHTING SYSTEM 3.11 3.2.6 HYDRAULIC SYSTEM OF SHEAR TYPE DRAWBAR SUPPORT 3.13 4 CORRECT USE PREPARING THE TRAILER FOR WORK 4.1.1 PRELIMINARY INFORMATION 4.1.2 HAND-OVER AND INSPECTION OF THE MACHINE AFTER DELIVERY 4.1.3 PREPARING THE TRAILER FOR THE FIRST USE, TEST RUN OF THE TRAILER...
  • Page 11 5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING 5.2.5 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS 5.2.6 CHECKING THICKNESS OF BRAKE SHOE LININGS. 5.10 5.2.7 ADJUSTMENT OF MECHANICAL BRAKES 5.11 5.2.8 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE TENSION.
  • Page 12 5.11 TROUBLESHOOTING 5.35 5.11.1 TROUBLESHOOTING 5.35...

  • Page 13: Basic Information

    SECTION BASIC INFORMATION...

  • Page 14: Identification

    Location of the data plate and vehicle identification number (VIN) (1) data plate, (2) example of vehicle identification number (VIN) Pronar T024, T024M agricultural trailers are marked with the data plate (1) and vehicle identification number (VIN) (2). The serial number and data plate are located in the central part of the frame front beam –...
  • Page 15 SECTION 1 PRONAR T024, PRONAR T024M, TABLE 1.1 Markings on data plate ITEM MARKING General description and purpose Symbol /Type Year of manufacture Seventeen digit serial number (VIN) Official certificate number Tare weight Maximum gross weight Carrying capacity Maximum hitch load (not applicable)

  • Page 16: Axle Identification

    PRONAR T024, PRONAR T024M, SECTION 1 1.1.2 AXLE IDENTIFICATION FIGURE 1.2 Location of the axle data plate (1) data plate, (2) wheel axle The serial number of the wheel axle and its type are stamped onto the data plate (2) secured to the wheel axle beam (1) –...

  • Page 17: Intended Use

    SECTION 1 PRONAR T024, PRONAR T024M, 1.2 INTENDED USE Bale transport trailer is used for transporting agricultural products and commodities prepared in form of bales or pressed blocks within a farm area and on public roads. The machine is also designed for transporting harvested crops and agricultural products on EUR-pallets and in pallet boxes.
  • Page 18 PRONAR T024, PRONAR T024M, SECTION 1 WARNING The bale transport trailer cannot be operated against its intended use, to transport the following in particular: • animals & people • for transporting hazardous loads or loads which are not properly secured against shifting or falling out, •...

  • Page 19: Accessories

    SECTION 1 PRONAR T024, PRONAR T024M, • have the required authorisation to drive carrying vehicles and are familiar with the road traffic regulations and transport regulations. TABLE 1.4 Wymagania ciągnika rolniczego CONTENTS REQUIREMENTS Brake system connection sockets Pneumatic system 1 conduit...
  • Page 20 Spare wheel winch with spare wheel • Mudguards (front and rear) • Side under-run protection devices (1) (3) • Linking chain • Slow-moving vehicle warning sign • Reflective warning triangle – the equipment only for T024M trailer, – the equipment only for T024 trailer,...

  • Page 21: Warranty Terms & Conditions

    PRONAR T024, PRONAR T024M, 1.4 WARRANTY TERMS & CONDITIONS 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: Transportation

    PRONAR T024, PRONAR T024M, SECTION 1 • making unauthorised alterations to machine design, the user will lose the right to warranty service. The user is obliged to report immediately on noticing any wear in the paint coating or traces of corrosion, and to have the faults rectified whether they are covered by the guarantee or not.
  • Page 23 SECTION 1 PRONAR T024, PRONAR T024M, FIGURE 1.3 Transport lugs (1) transport lug, (2) drawbar side member The trailer should be attached firmly to the platform of the vehicle using straps or chains fitted with a tightening mechanism. In order to attach the machine in a proper manner, use transport lugs (1) –...

  • Page 24: Independent Transport By The User

    PRONAR T024, PRONAR T024M, SECTION 1 in order to immobilise the machine. If necessary, sharp edges of trailer should be protected at the same time protecting the securing straps from breaking during transport. DANGER Incorrect use of securing measures may cause an accident.
  • Page 25 SECTION 1 PRONAR T024, PRONAR T024M, organisms. An oil leak into water reservoirs may however lead to a reduction of the oxygen content. While carrying out maintenance and repair work which involves the risk of an oil leak, this work should take place on an oil resistant floor or surface. In the event of oil leaking into the environment, first of all contain the source of the leak, and then collect the leaked oil using available means.

  • Page 26: Disposal

    PRONAR T024, PRONAR T024M, SECTION 1 1.7 DISPOSAL In the event of decision by the user to withdraw the trailer from use, comply with the regulations in force in the given country concerning withdrawal from use and recycling of machines withdrawn from use. Before commencing dismantling, totally remove the oil from the hydraulic system and reduce air pressure completely in the pneumatic brake system (e.g.

  • Page 27: User's Safety

    SECTION USER’S SAFETY...

  • Page 28: Safety Advice

    & conditions to be revoked. • Any modifications to the bale trailer introduced without the explicit consent of the PRONAR Narew releases the company form any liability concerning the modification- related defects or health impairment. • Climbing up and down the trailer is admissible only when the machine is immobilized and with a tractor engine switched off.
  • Page 29 SECTION 2 PRONAR T024, PRONAR T024M, • In case of the braking system failure it is forbidden to operate the trailer until the defect is repaired. • Bale trailer disconnected from a tractor must be immobilized with parking brake. If a trailer is parked on a sloped or elevated area it must be additionally secured with the use of chocks or other elements without sharp edges placed against the wheels.
  • Page 30 PRONAR T024, PRONAR T024M, SECTION 2 • Transported products must be protected from being displaced with the use of belts, chains, tapes or other fastening elements. The elements must be equipped with tensioning mechanism or have relevant safety attestations. • Air tank or hydraulic braking system are under high pressure when the trailer is operated.
  • Page 31 SECTION 2 PRONAR T024, PRONAR T024M, rubber or plastic). If there is a risk such elements may be damaged or burned they must be removed. • Wheel or tire replacing works must be performed by trained and qualified persons. The works must be performed with the use of relevant tools.

  • Page 32: Rules Of Using Public Roads

    PRONAR T024, PRONAR T024M, SECTION 2 additional protection. It is forbidden to perform any works under the trailer when it is lifted only with the use of a jack. • It is forbidden to support the trailer with the use of fragile elements such as bricks, breezeblocks, concrete blocks).

  • Page 33: Residual Risk Description

    (1) Low Speed Vehicle plate 2.1.3 RESIDUAL RISK DESCRIPTION Every effort has been made by Pronar Sp. z o. o. in Narew to eliminate any accidents. However, there is still a residual risk which may result in an accident. The risk mainly concerns the following: •...

  • Page 34: Warning & Informarion Labels

    PRONAR T024, PRONAR T024M, SECTION 2 Residual risk can be reduced to minimum when observing the following instructions: • operate the trailer in an unrushed and careful manner, • observe the information included in the User Manual, • keep safe distance form dangerous and access-forbidden areas, •...
  • Page 35 SECTION 2 PRONAR T024, PRONAR T024M, TABLE 2.1 Warning & information labels SYMBOL INTERPRETATION Become familiar with THE USER MANUAL 70N-00000004 Switch off the engine and remove keys from the ignition switch before proceeding with maintenance or repair works. 70N-00000005 Keep safe distance.
  • Page 36 PRONAR T024, PRONAR T024M, SECTION 2 TABLE 2.2 Markings in the Fig. comply with the Table 2.1 „Warning & Information Labels” 2.10...

  • Page 37: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 39: Technical Specification

    SECTION 3 PRONAR T024, PRONAR T024M 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical data of standard fittings CONTENTS UNIT T024 T024M Dimensions Length 9,290 9,290 Width 2,500 2,550 Height 2,750 2,740 Load box dimensions Length of load surface 7,170 7,170...

  • Page 40: Trailer Design

    Depending on the trailer version, the floor sides can be ended with a welded flat bar (T024) or a profiled side strip (T024M). The load platform, in its front part and rear part, is limited by ladders (2) and (3).

  • Page 41: Side Under-Run Protection Devices

    SECTION 3 PRONAR T024, PRONAR T024M FIGURE 3.2 Rear suspension (1) leaf spring, (2) rocker arm, (3) wheel axle, (4) rubber Axles are made from square bars terminated with pins, on which wheel hubs are mounted on cone bearings. The wheels are single and equipped with shoe brakes activated by mechanical cam expanders.

  • Page 42: Main Brake

    PRONAR T024, PRONAR T024M SECTION 3 FIGURE 3.3 Side under-run protection devices (1) strip of under-run protection device (2) bracket ATTENTION Side under-run protection devices must not be used as supporting elements while climbing on the trailer's platform. Before driving off, make certain that side under-run protection devices are set in transport position.
  • Page 43 SECTION 3 PRONAR T024, PRONAR T024M disconnection of the conduit between the trailer and the tractor, the control valve will automatically activate trailer's brakes - applies only to pneumatic systems. FIGURE 3.4 Diagram of double conduit pneumatic system with manual regulator FIGURE 3.5...
  • Page 44 PRONAR T024, PRONAR T024M SECTION 3 TABLE 3.2 List of symbols used on the diagrams SYMBOL MEANING Pneumatic connection (plug) Pneumatic connection with cut-off valve (socket) Air filter Drain valve Main control valve Relay valve Automatic regulator of braking force...
  • Page 45 SECTION 3 PRONAR T024, PRONAR T024M FIGURE 3.7 Brake pneumatic cylinders (1) membrane cylinder, (2) control connection, (3) short fork, (4) long fork, (5) pneumatic conduit, (6) plug FIGURE 3.8 Design of pneumatic cylinder (1) front cover, (2) rear cover, (3) membrane, (4) spring, (5) cylinder rod, (6) clamping ring Valve used in the system is equipped with a circuit causing the brakes to be applied when trailer is disconnected from the tractor - figure (3.9).

  • Page 46: Parking Brake

    PRONAR T024, PRONAR T024M SECTION 3 connected to the tractor, the device automatically applying the brakes changes its position to allow normal brake operation. Three-step brake force regulator (2)- figure (3.9), adjusts braking force depending on setting. Switching to a suitable working mode is done manually by the machine operator using the lever (4) prior to moving off.

  • Page 47: Electric Lighting System

    SECTION 3 PRONAR T024, PRONAR T024M 3.2.5 ELECTRIC LIGHTING SYSTEM FIGURE 3.10 Arrangement of electrical system components (1) front parking light, white, (2) 7-pin connection socket, (3) rear clearance light, (4) rear lamp assembly, (5) license plate light The trailer's electrical system is designed for supplying from direct current source of 12 V.
  • Page 48 PRONAR T024, PRONAR T024M SECTION 3 Arrangement of electrical system components and connection diagram of the connection socket are shown in figures (3.10) and (3.11) FIGURE 3.11 Connection socket (A) view of socket, (B) view of socket on the wiring harness fixing side TABLE 3.3...

  • Page 49: Hydraulic System Of Shear Type Drawbar Support

    SECTION 3 PRONAR T024, PRONAR T024M 3.2.6 HYDRAULIC SYSTEM OF SHEAR TYPE DRAWBAR SUPPORT Hydraulic system design is shown in Figure (3.12). Support foot (4) is extended and folded using hydraulic cylinder (1) controlled by means of the tractor's external hydraulic system.
  • Page 50 PRONAR T024, PRONAR T024M SECTION 3 3.14...

  • Page 51: Correct Use

    SECTION CORRECT USE...
  • Page 52 PRONAR T024, PRONAR T024M, SECTION 4...

  • Page 53: Preparing The Trailer For Work

    SECTION 4 PRONAR T024, PRONAR T024M, 4.1 PREPARING THE TRAILER FOR WORK 4.1.1 PRELIMINARY INFORMATION The trailer is supplied to the user completely assembled and does not require additional mounting operations of machine sub-assemblies. The manufacturer guarantees that the machine is fully operational and has been checked according to quality control procedures and is ready for use.

  • Page 54: Preparing The Trailer For The First Use, Test Run

    PRONAR T024, PRONAR T024M, SECTION 4 ATTENTION The seller is obliged to conduct the first start up of the trailer in the presence of the user. The user trained by the seller is not released from the obligation to read this Operator's Manual carefully.

  • Page 55: Preparing The Trailer For Normal Use

    SECTION 4 PRONAR T024, PRONAR T024M, • Switch on individual lights, check correct operation of electrical system. • Release tractor's parking brake. Perform test drive. Check the trailer's braking efficiency during driving. • Stop tractor and turn off the engine, immobilise the tractor and trailer with parking brake.
  • Page 56 PRONAR T024, PRONAR T024M, SECTION 4 DANGER Careless and incorrect use and operation of the trailer, and non-compliance with the recommendations given in this operator's manual is dangerous to your health. The machine must never be used by persons, who are not authorised to drive agricultural tractors, including children and people under the influence of alcohol or other drugs.
  • Page 57 SECTION 4 PRONAR T024, PRONAR T024M, tractor and then connect the red conduit to the red socket in the tractor. If the trailer is equipped with a single conduit pneumatic system, connect the black pneumatic conduit to the black socket in the tractor.
  • Page 58 PRONAR T024, PRONAR T024M, SECTION 4 Unhitching In order to unhitch the trailer from the tractor follow these steps. Immobilise the tractor with parking brake. Open the cut off valve of the support's hydraulic system. Lower the support to such a position as to make it possible to unhitch the trailer's drawbar eye.

  • Page 59: Loading And Securing Load

    SECTION 4 PRONAR T024, PRONAR T024M, Release tractor hitch, drive tractor away from the slurry tanker. ATTENTION The trailer must not be used when not in working order. 4.2 LOADING AND SECURING LOAD 4.2.1 GENERAL INFORMATION ABOUT LOADING The trailer is designed for transport of harvested crops and agricultural products in the form of pressed bales or blocks, at the farm and on public roads.

  • Page 60: Securing Load

    PRONAR T024, PRONAR T024M, SECTION 4 ATTENTION Do NOT exceed the trailer's maximum carrying capacity. Load placed on the platform must be uniformly distributed and properly secured. While driving on public roads the extendible frame must be retracted. 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 61: Tensioner Operation

    SECTION 4 PRONAR T024, PRONAR T024M, • tensioners bolted to front beam, • grips welded to front ladder and rear ladder. The extent of protection depends on loading method, type of load and size of load. If load is to be transported on slopes and/or in strong gusty winds conditions, limit the load height according to existing conditions.
  • Page 62 PRONAR T024, PRONAR T024M, SECTION 4 • Before moving off, make sure that there are no bystanders, especially children, near the trailer or the tractor. Ensure that the driver has sufficient visibility. • Make sure that the trailer is correctly attached to the tractor and tractor's hitch is properly secured.

  • Page 63: Unloading

    SECTION 4 PRONAR T024, PRONAR T024M, 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 64: Proper Use And Maintenance Of Tyres

    PRONAR T024, PRONAR T024M, SECTION 4 Unloading the trailer should be carried out in accordance with the general principles of workplace health and safety. 4.5 PROPER USE AND MAINTENANCE OF TYRES When working with tyres, the trailer should be secured against rolling by placing chocks under the wheels.

  • Page 65: Maintenance

    SECTION MAINTENANCE...
  • Page 66 PRONAR T024, PRONAR T024M, SECTION 5...

  • Page 67: Preliminary Information

    SECTION 5 PRONAR T024, PRONAR T024M 5.1 PRELIMINARY INFORMATION When using the trailer, regular inspections of its technical condition and the performance of maintenance procedures are essential, 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 68: Checking Wheel Axle Bearings For Slackness

    PRONAR T024, PRONAR T024M, SECTION 5 • changing grease in axle bearings, • changing bearings, hub seals, • replacement of brake shoes, • other axle repairs, may be performed by specialized vehicle service stations. 5.2.2 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5.1...
  • Page 69 SECTION 5 PRONAR T024, PRONAR T024M Lifting jack should be positioned in the place indicated by the arrow in figure (5.1). Lifting jack must be suitable for the weight of the machine. Checking wheel axle bearings for slackness Turning the wheel slowly in both...

  • Page 70: Adjustment Of Play Of Wheel Axle Bearings

    PRONAR T024, PRONAR T024M, SECTION 5 INSPECTION • after travelling the first 1,000 km. • Every six months of use or every 25,000 km. Check condition of hub cover, if necessary replace with a new cover. Inspection of bearing slackness may only be conducted when the trailer is hitched to tractor. The machine may not be loaded.

  • Page 71: Mounting And Dismounting Wheel, Inspection Of

    SECTION 5 PRONAR T024, PRONAR T024M Tighten castellated nut in order to eliminate looseness. Wheel should rotate with insignificant resistance. Undo nut (not less than 1/3 rotation) to align the nearest thread groove with the opening in wheel axle pin. Wheel should rotate without excessive resistance.
  • Page 72 PRONAR T024, PRONAR T024M, SECTION 5 Wheel installation Clean axle pins nuts contamination. Do not grease thread of nuts and pins. Check condition of pins and nuts, if necessary replace. Place wheel on hub, tighten nuts so that wheel rim tightly fits the hub.

  • Page 73: Checking Air Pressure In Tyres, Evaluating

    SECTION 5 PRONAR T024, PRONAR T024M TABLE 5.1 Selection of spanner arm length WHEEL TIGHTENING TORQUE BODY WEIGHT (F) ARM LENGTH (L) [Nm] [kg] 0.30 0.35 0.40 0.45 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 74: Checking Thickness Of Brake Shoe Linings

    PRONAR T024, PRONAR T024M, SECTION 5 DANGER Damaged tyres or wheels may be the cause of a serious accident. While checking pressure pay attention to technical condition of wheels and tyres. Look carefully at tyre sides and check the condition of tread. In case of mechanical damage consult the nearest tyre service and check whether the tyre defect requires tyre replacement.

  • Page 75: Adjustment Of Mechanical Brakes

    SECTION 5 PRONAR T024, PRONAR T024M FIGURE 5.6 Checking brake shoe linings (1) brake drum, (2) disc, (3) inspection openings, (G) thickness of brake shoe lining INSPECTION Thickness of brake shoe linings should be checked every 6 months. 5.2.7 ADJUSTMENT OF MECHANICAL BRAKES...
  • Page 76 PRONAR T024, PRONAR T024M, SECTION 5 During braking, the brake cylinder piston stroke should be within the specified operating range and the angle between brake cylinder piston and expander arm should be about 90° – compare figure (5.8). Braking force decreases also when the operating angle of the brake cylinder piston (5), in relation to the expander arm (1), is wrong –...
  • Page 77 SECTION 5 PRONAR T024, PRONAR T024M NOMINAL CYLINDER MINIMUM CYLINDER MAXIMUM CYLINDER STROKE STROKE STROKE L [mm] [mm] [mm] INSPECTION • Check technical condition of brake every 6 months. The inspection involves measuring the extension length of each brake cylinder rod while braking at parking.
  • Page 78 PRONAR T024, PRONAR T024M, SECTION 5 FIGURE 5.8 Principle of brake adjustment (1) brake cylinder rod, (2) brake cylinder membrane, (3) expander arm, (4) cylinder fork, (5) position of fork pin, (6) brake cylinder bracket, (A) mark on the brake cylinder at brake release position, (B) mark...

  • Page 79: Replacement Of Parking Brake Cable And Adjustment Of Cable Tension

    SECTION 5 PRONAR T024, PRONAR T024M Dismantle the expansion ring securing the expander arm. Shift the expander arm to align the marked expander arm opening with the cylinder fork opening. During adjustment, membrane (2) must rest on the rear wall of the brake cylinder –...
  • Page 80 PRONAR T024, PRONAR T024M, SECTION 5 Replacing the parking brake cable Hitch trailer to tractor. Park machine and tractor on level surface. Prevent the trailer from rolling by placing chocks under the wheels. Immobilise tractor with parking brake. Loosen nuts (2) of cable clamps and dismantle the cable.
  • Page 81 SECTION 5 PRONAR T024, PRONAR T024M Adjustment of parking brake cable tension Hitch trailer to tractor. Park machine and tractor on level surface. Prevent the trailer from rolling by placing chocks under the wheels. Immobilise tractor with parking brake. Fully unscrew the bolt of the handbrake mechanism.

  • Page 82: Pneumatic System Maintenance

    PRONAR T024, PRONAR T024M, SECTION 5 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 83: Inspection Of The System

    SECTION 5 PRONAR T024, PRONAR T024M 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. The help of a second person is required.

  • Page 84: Cleaning The Air Filters

    PRONAR T024, PRONAR T024M, SECTION 5 5.4 CLEANING THE AIR FILTERS Depending on trailer working conditions, but not less than once in three months, take out and clean air filter elements, which are located in pneumatic system connection conduits. Inserts are used many times and are not subject to changing unless they are mechanically damaged.

  • Page 85: Draining Water From Air Tank

    SECTION 5 PRONAR T024, PRONAR T024M 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 86: Cleaning And Maintaining Pneumatic Conduit

    PRONAR T024, PRONAR T024M, SECTION 5 Required maintenance actions Completely reduce pressure in air tank. Reduction of pressure in tank is achieved by tilting the drain valve stem. Unscrew both valves. Clean the valve and blow it with compressed air.

  • Page 87: Hydraulic System Maintenance

    SECTION 5 PRONAR T024, PRONAR T024M INSPECTION • Each time before hitching trailer to tractor. 5.5 HYDRAULIC SYSTEM MAINTENANCE 5.5.1 PRELIMINARY INFORMATION Work connected with the repair, replacement or regeneration of hydraulic system components should be entrusted to specialist establishments which have the appropriate technology and qualifications for this type of work.

  • Page 88: Checking Technical Condition Of Hydraulic

    PRONAR T024, PRONAR T024M, SECTION 5 If oil leak is detected on hydraulic cylinder body, ascertain origin of leak. Inspect seals when hydraulic cylinder is completely extended. Minimum leaks are permissible with symptoms of "sweating". However, if leaks in the form of "droplets" are noticed, stop using the trailer. If leaks appear at connections then tighten the connections.

  • Page 89: Lubrication

    SECTION 5 PRONAR T024, PRONAR T024M 5.6 LUBRICATION 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 90 PRONAR T024, PRONAR T024M, SECTION 5 TABLE 5.4 Recommended lubricants MARKING ACCORDING DESCRIPTION TO TAB. (5.3) Machine general-purpose grease (lithium, lime). Grease for heavily loaded elements with addition of MoS or graphite. Anti-corrosion and penetrating preparation in aerosol. Empty grease or oil containers should be disposed of according to the recommendations of the lubricant Manufacturer.
  • Page 91 SECTION 5 PRONAR T024, PRONAR T024M FIGURE 5.12 Trailer's lubrication points 5.27...

  • Page 92: Consumables

    PRONAR T024, PRONAR T024M, SECTION 5 Number of lubrication points and subassemblies requiring lubrication specified in table (5.3) LUBRICATION SCHEDULE depend on the trailer version. Locations of grease nipples and areas requiring lubrication are indicated by black arrows in figure (5.12).

  • Page 93: Trailer Cleaning

    SECTION 5 PRONAR T024, PRONAR T024M wash the place of contact with water and soap. Do NOT apply organic solvents (petrol, kerosene). Contaminated clothing should be changed to prevent access of oil to skin. In the 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.
  • Page 94 PRONAR T024, PRONAR T024M, 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 95: Storage

    SECTION 5 PRONAR T024, PRONAR T024M should be maintained with the aid of special preparations after previous thorough washing. • Observe environmental protection principles and wash trailer in a place designed for this purpose. • Washing and drying the trailer must take place at temperatures above 0°C.

  • Page 96: Inspection Of Tightening Torque Of Nut And Bolt Connections

    PRONAR T024, PRONAR T024M, SECTION 5 5.9 INSPECTION OF TIGHTENING TORQUE OF NUT AND BOLT CONNECTIONS 5.9.1 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS TABLE 5.6 Tightening torque for nut and bolt connections 10.9 METRIC THREAD Md [Nm] 1,050 1,150...

  • Page 97: Adjustment Of Drawbar Position

    SECTION 5 PRONAR T024, PRONAR T024M FIGURE 5.13 Bolt with metric thread (1) strength class, (d) thread diameter INSPECTION • Once, after purchasing the trailer, before first use. • Every 12 months. • Every 3 months during intensive work. 5.10 ADJUSTMENT OF DRAWBAR POSITION Location of the drawbar should be selected individually depending on the height of the hitch on the tractor that will pull the trailer.
  • Page 98 PRONAR T024, PRONAR T024M, SECTION 5 FIGURE 5.14 Adjustment of drawbar position (1) drawbar, (2) drawbar hitching eye, (3), (4) bolt, (5), (6) spring washer, (7) washer, (8) faceplate, (A), (B) drawbar fixing positions Scope of adjustment activities Immobilise trailer with parking brake.

  • Page 99: Troubleshooting

    SECTION 5 PRONAR T024, PRONAR T024M If the drawbar hitching eye is still wrong, dismount the drawbar (1) and change its position with regard to the faceplate (8). 5.11 TROUBLESHOOTING 5.11.1 TROUBLESHOOTING FAULT REASON REMEDY Brake system conduits not Connect brake conduits (applies...
  • Page 100 PRONAR T024, PRONAR T024M, SECTION 5 FAULT REASON REMEDY Worn brake linings Change brake shoes Check oil quality, make sure that Improper hydraulic oil the oil in both machines is of the viscosity same type. If necessary change oil in tractor or in trailer.
  • Page 101 SECTION 5 PRONAR T024, PRONAR T024M FAULT REASON REMEDY Incorrect toe-in. Excessive wear of left or Damaged leaf spring on one side right tyre shoulder, on of the suspension system. Incorrectly positioned wheel one side Replace leaf springs. axles. Damaged suspension Check suspension system for system, broken leaf spring.
  • Page 102 PRONAR T024, PRONAR T024M, SECTION 5 5.38...
  • Page 103 NOTES ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………..
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  • Page 105 ANNEX A TYRE WHEEL DISC 385/55 R22.5 160F 11.75x22.5 ET= -25 15.0/70-18 TL 14PR 148A8 13x18 ET=-50 500/50-17 18PR 155A8 16.00x17 ET=-35 520/50-17 159A8 16.00x17 ET=-20...

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