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Pronar PT512

CHAPTER 5

5.24

User is obliged to perform only the following maintenance work on the hydraulic system:

•

visual inspection and control of system tightness,

•

inspection of the technical condition of hydraulic connectors.

5.4.2 CONTROL OF HYDRAULIC SYSTEM TIGHTNESS

Scope of maintenance

Hitch the trailer to a tractor.

Connect all hydraulic system lines according to instructions in Operator's

Manual.

Clean connectors and cylinders (tipping cylinder, supports and possible

hydraulic brake cylinders).

Make a test tipping of loading case to the rear and sideways.

Press tractor brake pedal several times.

If the trailer is equipped with hydraulic brake system.

Inspect hydraulic lines and cylinders for tightness.

If oil on hydraulic cylinder body is detected, locate the source of leak. Inspect seals when

cylinder is completely extended. Minimum leaks (symptoms of "sweating") are permissible,

but if leaks in form of "droplets" are detected, stop using machine until fault is removed. If the

fault is related to brake cylinders, stop using the trailer until fault is removed.

Check tightness:

•

after first week of use,

•

every 12 months of use.

5.4.3 CHECKING THE TECHNICAL CONDITION OF HYDRAULIC CONNECTORS

AND SOCKETS

Hydraulic connectors and sockets used for connecting the second trailer must be in good

technical condition and kept clean. Each time before connecting, check if tractor sockets or

connectors of second trailer are in good condition. Tractor and trailer hydraulic systems are

Summary of Contents for PT512

Page 1: ...KIE POLAND Phone 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 OPERATOR S MANUAL TRAILER PRONAR PT512 TRANSLATION OF THE ORIGINAL DOCUMENT ISSUE 1B 05 2012 PUBLICATION NO 327N 00000000 UM ...

Page 2: ......

Page 3: ...machine Before using the machine the user must carefully read this Operator s Manual and observe all recommendations This guarantees safe operation and ensures malfunction 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 and operation rules of Pronar PT512 trailer If the informatio...

Page 4: ...nstructions the observance of which is essential are indicated with the sign and preceded by the word ATTENTION Failure to observe the instructions may lead to damage to the machine as a result of improper operation adjustment or use In order to focus the user s attention on the need to perform periodical maintenance the relevant section of the Operator s Manual is indicated with the sign Addition...

Page 5: ... forward travel direction Right side a right hand side of the person facing the machine s forward travel direction SCOPE OF OPERATION STEPS Operation steps are indicated with the following sign The result of an operation adjustment task or any notes on execution of the tasks performed is indicated with the sign ...

Page 6: ......

Page 7: ...PENDENT TRANSPORT BY THE USER 1 14 1 6 ENVIRONMENTAL HAZARD 1 14 1 7 WITHDRAWAL FROM USE 1 15 2 SAFETY OF OPERATION 2 1 2 1 GENERAL SAFETY RULES 2 2 2 1 1 USE OF THE TRAILER 2 2 2 1 2 HITCHING AND DISCONNECTING FROM TRACTOR 2 3 2 1 3 COUPLING AND UNCOUPLING THE SECOND TRAILER 2 3 2 1 4 HYDRAULIC AND PNEUMATIC SYSTEMS 2 4 2 1 5 LOADING AND UNLOADING THE TRAILER 2 5 2 1 6 TRANSPORT RUN 2 7 2 1 7 TIR...

Page 8: ...LER AFTER DELIVERY 4 2 4 1 2 PREPARING A TRAILER FOR FIRST HITCHING 4 2 4 2 HITCHING AND DISCONNECTING FROM TRACTOR 4 4 4 3 COUPLING AND UNCOUPLING THE SECOND TRAILER 4 9 4 4 LOADING AND SECURING THE LOAD 4 10 4 4 1 GENERAL INFORMATION ON THE LOADING 4 11 4 5 TRANSPORTING LOADS 4 19 4 6 UNLOADING 4 20 4 7 PROPER USE AND MAINTENANCE OF TYRES 4 25 4 8 OPERATING THE UNDER RUN PROTECTIVE DEVICE 4 26 5...

Page 9: ...3 CLEANING THE AIR FILTERS 5 17 5 3 4 DRAINING WATER FROM THE AIR RESERVOIR 5 18 5 3 5 CLEANING THE DRAIN VALVE 5 19 5 3 6 CLEANING AND MAINTENANCE OF PNEUMATIC SOCKETS AND LINE CONNECTORS 5 20 5 3 7 INSTALLATION OF SINGLE LINE PNEUMATIC SYSTEM 5 20 5 3 8 REPLACEMENT OF PNEUMATIC LINE 5 22 5 4 MAINTENANCE OF HYDRAULIC SYSTEM 5 23 5 4 1 PRELIMINARY INFORMATION 5 23 5 4 2 CONTROL OF HYDRAULIC SYSTEM...

Page 10: ...7 2 LUBRICANTS 5 33 5 8 CLEANING THE TRAILER 5 33 5 9 STORAGE 5 35 5 10 TORQUE VALUES FOR BOLTED JOINTS 5 35 5 11 INSTALLATION AND DISASSEMBLY OF EXTENSIONS 5 37 5 12 ADJUSTMENT OF DRAWBAR POSITION 5 37 5 13 TROUBLESHOOTING 5 39 ...

Page 11: ...CHAPTER 1 GENERAL INFORMATION ...

Page 12: ...and the serial number 1 rating plate 2 serial number The trailer has been identified by means of a rating plate 1 and a serial number 2 stamped on a rectangular gold painted area The rating plate is located on the front beam of the upper frame and the serial number is punched on the front beam of the chassis see figure 1 1 ...

Page 13: ... 1 1 Meaning of rating plate s fields ITEM MARKING A General description and purpose B Symbol Type of the trailer C Year of manufacture D Seventeen digit serial number VIN E Type approval certificate F Empty weight G Allowable total weight H Load capacity I Permissible hitch load J Permissible 1st axle load K Permissible 2nd axle load 1 1 2 IDENTIFICATION OF THE AXLES The serial number and the typ...

Page 14: ...umbers of particular components or the trailer s VIN It is thus advised to enter these numbers in the fields below 1 2 APPLICATION This trailer is designed for transporting agricultural commodities loose volumetric or long goods and goods on europallets or collar pallets both within a farm area and on the public roads This trainer can be used to transport construction materials mineral fertilizers...

Page 15: ... it is intended in particular for transporting people animals dangerous materials and materials which can chemically react with trailer s structural elements and cause steel corrosion damage the painted surfaces melt plastics damage rubber elements etc for transporting improperly secured materials which could fall on the road and pollute the natural environment for transporting improperly secured ...

Page 16: ...er s manufacturer The trailer can only be operated by persons which became familiar with the contents of this manual and the documents delivered with the trailer as well as the tractor operator s manual have undergone a training in terms of the trailer s operation and safety have all the permits required to drive a vehicle in question and became familiar with the traffic and transport regulations ...

Page 17: ...e Oil requirement bar MPa l L HL 32 Lotos 1 200 20 16 Electrical system Voltage Connection V 12 7 pole acc to ISO 1724 Tractor hitch Type of hitch Minimum vertical load capacity kg Single axle trailer hitch Upper transport hitch 1 950 Other requirements Minimum tractor power kW KM 61 7 84 1 it is allowed to use other oil provided it can be mixed with the oil in the trailer s system Detailed inform...

Page 18: ... connector acc to A DIN 74294 connector acc to A DIN 74294 connector acc to ISO 7421 1 5 8 6 5 580 650 6 5 650 150 15 Hydraulic tipping system Hydraulic oil Minimum system pressure bar MPa L HL 32 Lotos 1 200 20 Electrical system Voltage Connection V 12 7 pole acc to ISO 1724 Trailer drawbar Drawbar eye diameter Drawbar type mm 40 swinging two axle trailer 1 it is allowed to use other oil provided...

Page 19: ...ble Single and twin line pneumatic system Twin line pneumatic system with an automatic regulator Hydraulic braking system Handbrake Fenders Fenders rear front Hydraulic scissor support Rotating eye 50 mm Eye 40 mm Ball drawbar K80 Wheel chokes Automatic rear hitch Manual rear hitch Low speed vehicle warning plate Reflective warning triangle Set of extensions 800 mm ...

Page 20: ...ent which is fitted instead of the standard one Information on tires are presented at the end of this document see ANNEX A 1 4 WARRANTY TERMS PRONAR Sp z o o Narew guarantees the reliable operation of the machine when it is used according to technical and operation conditions described in the OPERATOR S MANUAL The repair dates are provided in the WARRANTY BOOK The guarantee does not apply to those...

Page 21: ...he user will lose the right to warranty service TIP 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 claims The user is obliged to report immediately on any noticed wear of the paint coating or traces of corrosion and to have the faults rectified wheth...

Page 22: ...member 2 one pair on each side of the trailer Use only certified and technically reliable securing means Worn straps cracked securing catches bent or corroded hooks and other damage may render a given securing mean unusable Carefully read the information in the Operator s Manual relating to a given securing mean Place chocks wooden beams or other objects without sharp edges under the wheels of the...

Page 23: ... transport vehicle should be particularly careful the vehicle s center of gravity is shifted upwards when transporting a machine Use only certified and technically reliable securing means Carefully read the instructions of the manufacturer of a securing mean used During reloading works take particular care not to damage parts of the machine s equipment or the lacquer coating The empty weight of th...

Page 24: ...environment Oil leaks to bodies of water can however reduce the amount of oxygen Maintenance and repair works involving the risk of an oil leak must be carried out on an oil resistant floor or surface In the event of oil leak into the environment first of all secure the source of the leak and then collect the spilled oil using available means The remaining oil should be collected by mean of sorben...

Page 25: ...AWAL FROM USE When withdrawing the trailer from use comply with the regulations being in force in the given country concerning withdrawal and recycling of machines Before dismantling the machine remove all oil from the hydraulic system and completely reduce the pneumatic brake system air pressure e g using air tank drain valve Any parts which are worn or damaged and cannot be reclaimed should be t...

Page 26: ...Pronar PT512 CHAPTER 1 1 16 ...

Page 27: ...CHAPTER 2 SAFETY OF OPERATION ...

Page 28: ...ence of a residual risk For this reason the fundamental basis for using this trailer should be the application of safety rules and reasonable behavior The machine must never be used by persons who are not authorized to drive agricultural tractors including children and people under the influence of alcohol or drugs Non compliance with the safety rules can endanger the health and the life of an ope...

Page 29: ... properly Carefully read the tractor Operator s Manual If a tractor is equipped with an automatic hitch make certain that the coupling operation is completed Be especially careful when hitching the machine When hitching no persons must be present between the trailer and the tractor Do not proceed with disconnecting the trailer from the tractor when the loading case is raised Coupling and uncouplin...

Page 30: ...e during operation Regularly check the technical condition of connections as well as the hydraulic and pneumatic lines Oil or air leaks must not be present A cut off valve in the hydraulic tipping system limits the tipping angle of the loading case when tipping to the rear and sideways The length of the cable controlling this valve is factory adjusted and must not be changed when the trailer is be...

Page 31: ...ng and unloading the trailer must be carried out only by a person having relevant experience Before loading the trailer make sure that the wall reinforcements are installed and secured by means of nuts If the material being loaded does not exert force on the side walls the reinforcements may be dismounted Otherwise the force exerted by loaded material will damage the walls Use only original tippin...

Page 32: ...d wall locks the load may exert force on the trailer walls Do not tip the loading case in windy conditions Bulk materials loaded in excess of 1 m can be unloaded only by tipping the loading case to the rear Bulk materials loaded in the trailer with the second set of extensions must be unloaded with particular care When operating Pronar PT512 trailer with the second set of extension installed the r...

Page 33: ...de gate or the walls and extensions take particular care to avoid crushing fingers Do not enter or place hand between opened side walls and the loading case Lower the loading case before proceeding to deal with a malfunction If it is necessary to raise the loading case it should be secured against dropping with the aid of a support The loading case may not be loaded The trailer must be hitched to ...

Page 34: ... vehicle Before moving check that the trailer is correctly hitched to a tractor in particular check if the hitching pins are secured properly Vertical load carried by the trailer drawbar eye affects the steering of a tractor It is prohibited to drive with the loading case raised Before driving off check if the pins attaching the loading case to the lower frame and wall pins are secured against fal...

Page 35: ...hydraulic pneumatic and electrical systems Before driving off check that the parking brake is disengaged the braking force regulator is positioned in a proper position applies to pneumatic systems with a manual three position regulator The trailer is designed to operate on slopes up to 80 Driving trailer on steeper slopes may cause the trailer to tip over as a result of loss of stability FIGURE 2 ...

Page 36: ...tion of basic braking effectiveness Prolonged driving on steep ground may lead to loss of braking efficiency Place the low speed vehicle warning plate on the rear wall if the trailer is the last vehicle towed The load must be uniformly distributed and must not obstruct visibility or hinder driving The load must be secured so that it cannot move or fall over When reversing use the assistance of ano...

Page 37: ...ty period any repairs may only be carried out by Servicing Center authorized by the manufacturer After the expiry of the warranty period it is recommended that repairs to the trailer are performed by specialized workshops In the event of any fault or damage do not use the trailer until the fault is fixed During maintenance works use the proper tight fitting protective clothing gloves protective go...

Page 38: ...ed persons do not have access to the tractor cab During maintenance or repair works the trailer may be unhitched from tractor but secured with chocks and the parking brake The loading case must not be raised Should it be necessary to change individual parts use only parts recommended by the manufacturer Non adherence to these requirements may put the user and other people s health and life at risk...

Page 39: ...not be used for this purpose Before entering the loading case prevent trailer moving with the parking brake and chocks Do not make independent repairs of control valve brake cylinders tipping cylinder and braking force regulator In the event of damage to these components replace them or have them repaired by an authorized servicing center Do not repair the drawbar and its eye straightening repairi...

Page 40: ...ne sensible application of the remarks and recommendations contained in the Operator s Manual maintaining safe distance from prohibited or dangerous places during unloading loading and hitching the trailer carrying out repair and maintenance works according to the operating safety rules carrying out repair and maintenance works by trained persons using tight fitting protective clothing and appropr...

Page 41: ...he trailer do not use solvents as they can damage the coating of information decals Do not subject them to strong water jets TABLE 2 1 Information and warning decals ITEM DECAL MEANING 1 Trailer version 2 Note Before starting work carefully read the Operator s Manual 3 Before beginning servicing or repairs switch off the tractor s engine and remove key from ignition Ensure that unauthorized person...

Page 42: ...gnition 5 Note Danger of electric shock Keep a safe distance from overhead power lines during unloading 6 Danger of crushing Do not perform any maintenance or repair works on the loading case that is loaded raised or not supported 7 Regularly check if the nuts and bolts fixing the wheels and other components are properly tightened ...

Page 43: ... s Manual 9 Hose supplying hydraulic braking system 10 Hose supplying hydraulic tipping system 11 Information on typical weight of selected material types 12 Positions of control valve controlling the operation of hydraulic tipping system 13 Information decal 14 Air pressure in the tires 1 15 Permissible design speed ...

Page 44: ... scissor support s hydraulics 18 Return line of the scissor support s hydraulics 19 Quality control decal 20 Allowable total weight 1 pressure value should be adapted to tires Numbers in the ITEM column correspond to labels in figure 2 3 Decals items 9 10 17 and 18 are located on hydraulic hoses Decals 12 and 16 are located near hydraulic valves ...

Page 45: ...CHAPTER 2 Pronar PT512 2 19 FIGURE 2 3 Locations of information and warning decals ...

Page 46: ...Pronar PT512 CHAPTER 2 2 20 ...

Page 47: ...CHAPTER 3 DESIGN AND OPERATION ...

Page 48: ... carrying capacity Empty weight Allowable total weight Allowable carrying capacity kg kg kg 4 260 16 260 12 000 Other information Wheel track Load volume Loading surface Loading surface lift Loading case tipping angle sideways rearwards Electrical system voltage Design speed Noise emission level Tractor power requirement Hydraulic oil requirement Permissible load on drawbar eye mm m3 m2 mm V km h ...

Page 49: ... chassis there is a lights support beam 3 onto which electrical equipment elements as well as hydraulic and pneumatic system sockets for connection of another trailer are installed The trailer suspension comprises two axles 4 attached to leaf springs 17 by means of U bolts The suspension is attached the lower frame 1 The axles are made from square bars ended with pivots onto which wheel hubs 5 are...

Page 50: ... tipping cylinder bracket 3 lights support beam 4 axle 5 wheel 6 drawbar 7 rear beam 8 front crossbar 9 loading case support 10 trailer support 11 fender 12 wheel chocks 13 brake mechanism 14 wire harness support 15 drawbar eye 16 rear wall stopper 17 leaf spring ...

Page 51: ... placing by the trailer operator The rear and side walls of the loading case are secured using pins seated in the front wall locks and locks welded to rear pillars 5 of the walls In the lower part they are locked using hooks located in left and right longitudinal members as well as in the rear beam of the upper frame The walls can be closed and opened by means of two levers 1 see figure 3 3 locate...

Page 52: ...ched to the front wall and extension An additional step facilitating access to the loading case is bolted to the inside part of the front extension Optionally the trailer can be equipped with a foldable canvas cover 5 with its frame Another piece of equipment facilitating the canvas cover handling is a platform 4 attached to the trailer s front wall The pull off springs 6 facilitate the side walls...

Page 53: ...rder to enable more precise unloading of loose materials there is a slide gate 1 in the rear wall see figure 3 4 which can be opened by means of the lever 2 The slide gate when in the upper position and during transport must be secured by tightening the locking screw 3 A chute for the trailer slide gate installed directly below the opening can be supplied as additional equipment ...

Page 54: ...g system with automatic regulator see figure 3 6 hydraulic braking system see figure 3 8 The standard version of the trailer is fitted with a twin line pneumatic braking system If there is a need to install a single line braking system this can be carried out by the user Elements required to alter the system are delivered as the standard equipment of the trailer Detailed information on installatio...

Page 55: ...ual braking force regulator 1 air reservoir 2 control valve 3 braking force regulator 4 pneumatic cylinder 5 line connector yellow 6 line connector red 7 air filter 8 air reservoir control connector 9 pneumatic cylinder control connector 10 drain valve 11 socket yellow 12 socket red 13 relay valve ...

Page 56: ... braking force regulator 1 air reservoir 2 control valve 3 braking force regulator 4 pneumatic cylinder 5 line connector yellow 6 line connector red 7 air filter 8 air reservoir control connector 9 pneumatic cylinder control connector 10 drain valve 11 socket yellow 12 socket red 13 relay valve ...

Page 57: ...e trailer is disconnected from a tractor see figure 3 7 After the air line is connected to a tractor the releasing device is automatically set in a way enabling the normal brake operation A three step brake force regulator 2 figure 3 7 adjusts the braking force depending on the setting Switching to a suitable working mode is done manually by the operator before driving off by means of the lever 4 ...

Page 58: ...raulic system is required to operate the trailer s hydraulic braking system The function of an electro hydraulic valve 1 figure 3 9 is to operate the trailer brakes simultaneously with the tractor brakes Before driving off check the brakes operation To do so press the brake pedal several times to rise a pressure in the hydraulic accumulators The connector cable 6 is used to connect the trailer s b...

Page 59: ... hydraulic valve 2 valve working mode selection lever 3 release button 4 electric coil A position NO LOAD B position HALF LOADED C position FULL LOAD The valve used is equipped with a circuit causing the brake to release It can be used when the trailer is disconnected from a tractor The brake is released when the pressure in the trailer s system is reduced see figure 3 9 The brakes operate normall...

Page 60: ...system distributor is used to control the loading case raising The trailer tipping system comprises two separate circuits circuit A to supply the trailer s hydraulic cylinder circuit B to supply the second trailer s hydraulic cylinder if two trailers are hitched to the tractor A three way valve is used to supply these circuits 2 figure 3 10 The lever of this valve can be placed in two positions 1 ...

Page 61: ...0 Hydraulic tipping system 1 telescopic cylinder 2 three way valve 3 cut off valve 4 quick coupling 5 socket 6 control cable 7 guide roller 8 9 information decals TIP The trailer s hydraulic system is filled with L HL32 Lotos hydraulic oil ...

Page 62: ...the tractor s system by means of a line 1 The hydraulic cylinder of the support is controlled by means of the tractor s external hydraulic system distributor FIGURE 3 11 Scissor support hydraulic system 1 supply line 2 return line 3 scissor support 4 cylinder 5 hydraulic locking device 6 7 information decals The system has been fitted with a hydraulic locking device 5 which is installed on the cyl...

Page 63: ...such case the hydraulic locking device will lock the cylinder 4 in a given position TIP The support s hydraulic system is filled with L HL32 Lotos hydraulic oil 3 2 6 PARKING BRAKE FIGURE 3 12 Parking brake 1 crank mechanism 2 cable 3 guide roller 4 expander arm The parking brake is used to immobilize the trailer and secure it against rolling ...

Page 64: ...s are opened and the trailer is immobilized The cable 2 is tensioned by turning the crank clockwise 3 2 7 LIGHTING SYSTEM The trailer electrical system is designed for supplied by 12 V DC Connections of the trailer electrical system with the tractor should be made through an appropriate connection cable delivered with the trailer FIGURE 3 13 Electrical system diagram Designations according to tabl...

Page 65: ...e plate light PP Front right position light PL Front left position light OP Rear right LED clearance light OL Rear left LED clearance light OBP1 OBP3 Side right LED clearance lights OBL1 OBL3 Side left LED clearance lights TABLE 3 3 Designations of GP and GT socket pins FIELD FUNCTION 31 Weight Power supply 12 V not used L Left directional indicator 54 STOP light 58L Rear left position light 58R R...

Page 66: ...ations of electrical system components and reflective lights rear view 1 rear left lamp assembly 2 rear right lamp assembly 3 license plate light 4 rear 7 pin socket 5 Rear right clearance light 6 rear left clearance light 7 side position light ...

Page 67: ...CHAPTER 3 Pronar PT512 3 21 FIGURE 3 15 Locations of electrical system components and reflective lights front view 1 front position light 2 front 7 pin socket 3 side position light 4 connector cable ...

Page 68: ...Pronar PT512 CHAPTER 3 3 22 ...

Page 69: ...CHAPTER 4 CORRECT USE ...

Page 70: ... its recommendations and understand the machine design and the principle of its operation ATTENTION Before proceeding to hitching the trailer and starting its operation carefully read this Operator s Manual and observe all its recommendations External inspection Check completeness of the machine standard and optional equipment Check the condition of protective paint coating Inspect the trailer s c...

Page 71: ...check all systems and test run the trailer without load no load in the loading case It is recommended that the inspection is carried out by two persons one of them should always remain in the tractor operator s cab Test start should be carried out according to the sequence presented below Attach the trailer to an appropriate hitch on a tractor Connect braking electrical and hydraulic system lines ...

Page 72: ...rm repairs DANGER Careless improper use and operation of the trailer and non compliance with the recommendations given in the Operator s Manual pose danger to health The trailer must not be used by persons unauthorized to drive agricultural tractors including children and people under the influence of alcohol Non compliance with the safety rules can endanger the health and the life of an operator ...

Page 73: ...ydraulic lines The scissor support s hydraulic lines are indicated by means of information decals 4 and 5 see figure 4 1 FIGURE 4 1 Trailer s support 1 support 2 cylinder 3 hydraulic line 4 5 information decals Using the support adjust the height of the drawbar eye so that it is possible to hitch machines Reverse the tractor hitch the trailer check the coupling protection securing the machine agai...

Page 74: ...cal 7 figure 3 8 Connect the valve connector cable 6 figure 3 8 Connect hydraulic tipping system lines The hydraulic brake system line is marked with an information decal 10 table 2 1 Connect the main power cable for electric lighting system Lift the support to the transport position DANGER When hitching the trailer no persons must be present between the trailer and the tractor When hitching the m...

Page 75: ...ngine applying the voltage to the connector cable the braking system will be ready for operation In case no voltage is applied to the connector cable the trailer will be immobilized by means of the brake ATTENTION The trailer can only be hitched to a tractor which has the appropriate hitch and connection sockets for braking hydraulic as well as electrical systems and if hydraulic oil in both machi...

Page 76: ...ic braking system Disconnect the electric connector cable Disconnect the hydraulic line Disconnect the support s hydraulic lines Protect the ends with covers Place the connectors in appropriate sockets Insert the chocks under the trailer s wheel The wheel chocks must be inserted so that one is in front of the wheel and the second one behind it see chapter 2 figure 2 1 Unlock the tractor hitch disc...

Page 77: ...trailer must have a dual axle chassis and fulfill all the requirements specified in chapter 1 Coupling the second trailer requires experience in driving an agricultural tractor with a trailer It is recommended to use help of another person to guide the tractor driver while coupling the second trailer Coupling the second trailer FIGURE 4 2 Rear hitch 1 hitch body 2 hitch pin 3 chain with a cotter p...

Page 78: ...g brake Turn off the engine Close the tractor cab and secure it against access by unauthorized persons Disconnect the pneumatic and hydraulic system lines and electric cables according to instructions contained in chapter 4 2 Release the hitch pin in the first trailer Remove the pin and the tractor away DANGER The person assisting coupling the second trailer must stand in a place visible to the tr...

Page 79: ...vas cover 3 clamp 4 tensioning strap 4 4 1 GENERAL INFORMATION ON THE LOADING Before beginning loading make certain that the loading case walls extensions and the rear slide gate are properly closed and secured The trailer s wheels must be in line with the tractor s wheels and the trailer must be hitched to the tractor Loading should only take place when the trailer is parked on a level surface Re...

Page 80: ...rious density of materials using the total loading case capacity may cause exceeding the permissible carrying capacity of the trailer Guideline specific weight of selected materials is presented in table 4 1 It is necessary to pay particular attention not to overload the trailer The trailer must be loaded only by an experienced person who is authorized to operate relevant loading equipment if requ...

Page 81: ...cks hollow bricks stones soft wood hard sawn timber impregnated timber steel structures milled burnt lime slag gravel 1 200 1 300 1 350 1 650 1 700 2 050 1 500 2 100 1 000 1 200 1 500 2 200 300 450 500 600 600 800 700 7 000 700 800 650 750 1 600 1 800 Straw litter and bulk feeds meadow hay dried in the swath hay wilted in the swath hay in gathering trailer dry wilted wilted cut hay dry baled hay w...

Page 82: ...l mass in bulk trailer cut cereal mass in gathering trailer green fodder in swath cut green fodder in bulk trailer green fodder in gathering trailer fresh beet leaves cut fresh beet leaves beet leaves in gathering trailer 110 160 60 100 40 60 80 140 8 15 15 20 50 80 20 40 50 90 40 100 80 90 110 150 35 75 60 100 28 35 150 400 120 270 140 160 350 400 180 250 Concentrated and mixed fodders stored cha...

Page 83: ...eeds broad beans mustard peas lentils beans barley clover grass maize wheat rape linseed lupins oats lucerne rye 750 850 600 700 650 750 750 860 780 870 600 750 700 800 360 500 700 850 720 830 600 750 640 750 700 800 400 530 760 800 640 760 Others dry soil wet soil fresh peat garden soil 1 300 1 400 1 900 2 100 700 850 250 350 Source Technology of machine work in agriculture PWN Warszawa 1985 ...

Page 84: ... materials the walls and extensions must be connected with a cable Secure the cable detaching mechanism by means of a cotter pin Small seeds such as rape or powdered materials can be transported only if those gaps in the loading case the width of which is smaller than the diameter of grains are sealed Use profiled rubber seals silicone sealants foil ropes or textile materials used as covers to sea...

Page 85: ...sporting and handling the load Make sure if it is necessary to use additional means of personal protection during loading masks rubber gloves etc Volumetric loads Volumetric loads which are light but have high volume such as hay straw bales rectangular or round green fodder etc are recommended to be loaded with the aid of the appropriate mechanical equipment bail grapples forks etc or directly by ...

Page 86: ...e of a variety of loads tools load fastening and securing means it is not possible to describe all methods of loading the trailer Always rely on your own experience and reason The user of the trailer is obliged to familiarize oneself with road transport regulations and follow them DANGER Overloading the trailer improper loading and securing of the load is the most frequent cause of accidents durin...

Page 87: ...ver and other road users Never exceed the permissible design speed and the maximum speed allowed by road traffic regulations The driving speed should be adapted to the current road conditions trailer loading type of load being transported and other relevant conditions The trailer may be towed on slopes of up to 8 unloading must be carried out only on a level surface When not hitched to a tractor t...

Page 88: ...ore making a turn or driving on an uneven road or a slope When driving avoid sharp turns especially on slopes ATTENTION Prior to moving off with the trailer hitched check if pins connecting the loading case with the lower frame are secured against falling out lug pins of extensions are secured against falling out Passing over ruts ditches and driving through slopes etc with a volumetric load const...

Page 89: ... the tractor and the trailer must be parked to drive forwards on a flat and hard ground FIGURE 4 4 Securing the tipping pins 1 tipping pin I 2 tipping pin II 3 tipping pin handle immobilize the tractor and the trailer with the parking brake additionally wheel chocks can be used ...

Page 90: ...ll be unloaded if required open the rear slide gate see figure 4 6 when opening the walls exercise caution open the wall locks connecting the wall with the pillar and the front wall when opening the walls exercise caution set the tipping hydraulic circuit control lever in position 1 tipping of the first trailer activate the hydraulic circuit feeding the trailer s hydraulic tipping system to raise ...

Page 91: ... set of extensions installed pay attention to the trailer s stability and the increased risk of overturning Control the trailer s movement on uneven ground Ensure that during unloading nobody is near the loading case Due to the risk of injury when opening closing the bolts and the locks wear protective gloves Tipping the loading case must be done only on a hard and level ground Exercise particular...

Page 92: ... to do so loosen the bolt interlocking the slide gate 4 open the slide to a required height and lock again using the bolt When unloading material through the chute do not open wall locks or wall extension locks The loading case must be tipped very slowly and without jerking Raising the loading case quickly will exert large pressure on its rear part due to displacement of the material and can compr...

Page 93: ...se and the material pouring out The loading case can only be tipped when the trailer is hitched to the tractor Do not tip the loading case during strong wind gusts It is prohibited to move off and drive with the loading case raised TIP It is recommended to use wheel chocks to secure the trailer during unloading When unloading high volume materials like branches it is allowed to open the trailer s ...

Page 94: ...pressure Protect tire valves using suitable caps to avoid soiling Do not exceed the trailer s maximum design speed When the trailer is operated all day stop working for a minimum of one hour in the noon To cool down the tires stop for 30 minutes each time after driving 75 km or after 150 minutes of continuous travel depending on which occurs first Avoid potholes sudden maneuvers or high speeds whe...

Page 95: ... 7 Left under run protective device 1 left under run protective device 2 barrier handle bracket 3 clamp 4 catch 5 lock bolt Lowering Pull the under run protective device Lower the device and push it so that the bracket pin locks in place ...

Page 96: ...ans of pins 5 DANGER It is prohibited to drive with the under run protective device raised Before driving off make sure that the under run protective devices are lowered and locked in place Unless necessary do not leave the devices in the lifted position ...

Page 97: ...CHAPTER 5 MAINTENANCE ...

Page 98: ...ed as possible for the trailer operator to perform the warranty will be invalidated 5 2 SERVICING THE BRAKES AND THE AXLE 5 2 1 PRELIMINARY INFORMATION Work related to repairs change or regeneration of axle and mechanical brakes elements should be entrusted to specialist workshops having the appropriate technology and qualifications for this type of work The responsibilities of the user are limite...

Page 99: ...iler to a tractor and place chocks under trailer wheel Engage and release firstly the main brake and then the trailer parking brake The main brake and the parking brake should be engaged and released without great resistance and severity Check mounting of cylinders and return springs Check stroke of cylinders and correct return of piston to start position Assistance of a second person is required ...

Page 100: ...trailer on hard level ground Tractor must be placed to drive forward Insert the chocks under the trailer s wheel Ensure that the trailer shall not move during inspection Raise the wheel opposite to the side where the chocks are placed The lifting jack should be placed between U bolts 2 figure 5 1 securing axle 1 to springs or as near as possible to spring mounting Recommended support points are ma...

Page 101: ...amage In this case the bearing together with sealing ring should be replaced with new parts or cleaned and greased again TIP Damaged hub cover or lack of hub cover causes penetration of contamination and moisture to the hub which causes significantly faster wear of bearing and hub seals Bearing life is dependent on working conditions of trailer loading tractor speed and lubrication conditions Chec...

Page 102: ...E BEARINGS PLAY Preparation procedures Prepare a tractor and the trailer for adjustment procedures according to description provided in section 5 2 3 FIGURE 5 2 Adjustment of axle bearings 1 hub cover 2 castellated nut 3 cotter pin Adjustment of axle bearing play Remove the hub cover 1 figure 5 2 Remove cotter pin 3 securing the castellated nut 2 Tighten castellated nut in order to eliminate play ...

Page 103: ...nce not originating from abrasion of brake shoes in brake drum Adjustment of bearing play may only be conducted when the trailer is hitched to a tractor and the loading case is empty TIP If the wheel is dismounted bearing play is easier to check and adjust 5 2 5 MOUNTING AND DISMOUNTING THE WHEEL INSPECTION OF WHEEL TIGHTENING Dismounting the wheel Immobilize the trailer with the parking brake Pla...

Page 104: ...ue of 270 Nm nuts M18x1 5 FIGURE 5 3 Sequence of nut tightening 1 6 sequence of nut tightening L spanner length F user weight Tightening nuts Nuts should be tightened gradually diagonally in several stages until obtaining the required tightening torque by means of a torque spanner If a torque spanner is not available use an ordinary spanner The arm of the spanner L figure 5 3 should be selected ac...

Page 105: ...read or breaking off the hub pin The greatest precision is achieved by use of a torque spanner Before commencing work ensure that correct tightening torque value is set TABLE 5 1 Spanner arm selection WHEEL TIGHTENING TORQUE BODY WEIGHT F ARM LENGTH L Nm kg m 90 0 30 77 0 35 67 0 40 270 60 0 45 5 2 6 CONTROL OF AIR PRESSURE EVALUATING TECHNICAL CONDITION OF TIRES AND STEEL WHEELS The tire pressure...

Page 106: ...terial breaking of welds corrosion especially in the area of welds and contact with tire Appropriate technical condition and appropriate maintenance significantly extends the life of these components and ensures appropriate level of safety to trailer users Control of pressure and inspection of steel wheels should be performed every 1 month of use if needed 5 2 7 ADJUSTMENT OF MECHANICAL BRAKES Dur...

Page 107: ...inder fork 4 to expander arm 3 Mark position of expander arm 1 with regard to the shaft 2 Dismantle the arm and set it in the appropriate position in direction A if the brakes are applied too early in direction B if the brakes are applied too late Repeat the procedure for the second arm Replace pin fixing the cylinder fork to expander arm FIGURE 5 4 ADJUSTMENT OF AXLE MECHANICAL BRAKES 1 expander ...

Page 108: ...in parallel with regard to each other at full braking If they are not adjust the position of the lever which has the longer stroke TABLE 5 2 POSITION OF PIN IN EXPANDER ARMS TYPE OF BRAKING SYSTEM PIN POSITION FRONT AXLE mm C PIN POSITION REAR AXLE mm D Twin line system Twin line system ALB Hydraulic system Single line system 150 150 150 150 200 200 200 200 5 2 8 REPLACEMENT OF PARKING BRAKE CABLE...

Page 109: ... and pins of cable guiding wheels rolls 4 Mount a new cable Parking brake cable should be installed with care Cable should be ended with thimble and three clamps at each end Clamps should be fully tightened Distances between clamps should be not less than 15 mm Clamping jaws should be located at load supporting side of the cable see figure 5 6 First clamp should be located as close as possible to ...

Page 110: ...ke mechanism 1 figure 5 5 counterclockwise Loosen nuts of parking brake cable clamps 2 Pull the cable and tighten the clamps Length of parking brake cable should be selected so that these cables were loose and hang down 1 2 cm when the working and parking brakes are released Adjustment of parking brake cable tension should be performed in the following cases if the cable is stretched clamps of par...

Page 111: ...user is obliged to perform following maintenance work on the pneumatic system visual inspection and control of system tightness cleaning the air filter filters draining water from air reservoir cleaning the drain valve cleaning and maintenance of pneumatic line connectors DANGER Do not use the trailer when brake system is unreliable 5 3 2 VISUAL INSPECTION AND CONTROL OF SYSTEM TIGHTNESS Control o...

Page 112: ... to use commercially available compounds designed to facilitate discovering air leaks Damaged components should be replaced or repaired If leaks appear near connectors user should tighten these connectors If air continues to escape replace connector components or seals with new ones Control of tightness should be performed after first 1000 km after each repair or replacement of system elements onc...

Page 113: ...and clean air filter elements which are located on pneumatic system connection lines Inserts are used many times and are not subject to replacement unless mechanically damaged FIGURE 5 7 Air filter 1 sliding lock 2 filter cover DANGER Before proceeding to dismantle filter reduce pressure in the supply line While disengaging filter lock hold cover with other hand Filter cover should be directed awa...

Page 114: ... hand After removing sliding lock the cover is pushed off by the spring in the filter housing The filter element and body should be carefully washed out and blown through with a compressed air Assembly should be done in reverse sequence Clean the air filter filters every 3 months of use 5 3 4 DRAINING WATER FROM THE AIR RESERVOIR FIGURE 5 8 Draining water from the air reservoir 1 water drain valve...

Page 115: ...eturn to its position then the whole drain valve must be unscrewed and cleaned or replaced if damaged with new one see chapter 5 3 5 Drain water from air reservoir every 7 days of use 5 3 5 CLEANING THE DRAIN VALVE Scope of maintenance Completely reduce the pressure in the air reservoir Reduction of pressure in tank is achieved by tilting the drain valve stem Unscrew the valve Clean valve and blow...

Page 116: ...sockets specially designated for this purpose Before the winter season it is recommended to preserve the seal with special compounds e g silicon grease for rubber elements Each time before hitching the the machine inspect technical condition and cleanness of connectors and sockets in a tractor If necessary clean or repair tractor socket 5 3 7 INSTALLATION OF SINGLE LINE PNEUMATIC SYSTEM The standa...

Page 117: ...ninstall the air filter 6 FIGURE 5 9 Altering the twin line pneumatic system into single line pneumatic system 1 control valve 2 relay valve 3 air reservoir 4 water drain valve 5 spiral line yellow 6 air filter 7 control valve plug 8 relay valve plug 9 line connector red 10 socket red ...

Page 118: ...nnector black Checking the trailer connectors every time when the trailer is to hitched to a tractor or when the second trailer is to be connected 5 3 8 REPLACEMENT OF PNEUMATIC LINE Only permanently deformed cut or worn pneumatic lines should be replaced Scope of maintenance Reduce pressure in the system Reduction of pressure is achieved by tilting the drain valve stem Unscrew the nut 2 and unins...

Page 119: ... tip the trailer with unreliable hydraulic tipping system Do not use the trailer if the hydraulic system of the support is out of order Do not use the trailer when hydraulic brake system is unreliable Work related to repairs change or regeneration hydraulic system components tipping cylinder valves etc should be entrusted to specialist workshops having the appropriate technology and qualifications...

Page 120: ...hydraulic brake system Inspect hydraulic lines and cylinders for tightness If oil on hydraulic cylinder body is detected locate the source of leak Inspect seals when cylinder is completely extended Minimum leaks symptoms of sweating are permissible but if leaks in form of droplets are detected stop using machine until fault is removed If the fault is related to brake cylinders stop using the trail...

Page 121: ...ndition Replacement should be performed by specialized workshops Replace hydraulic lines every 4 years 5 5 MAINTENANCE OF ELECTRICAL SYSTEM AND WARNING ELEMENTS 5 5 1 PRELIMINARY INFORMATION Work related to repairs change or regeneration of electrical system elements should be entrusted to specialist workshops having the appropriate technology and qualifications for this type of work ATTENTION Do ...

Page 122: ...Before driving on to public road check that the tractor is equipped with warning reflective triangle Check electrical system each time when hitching the trailer TIP Before driving make certain that all lamps and reflective lights are clean 5 5 2 REPLACEMENT OF BULBS List of bulbs is presented in table 5 3 All light lenses are secured by screws and it is not necessary to dismantle the whole lamp or...

Page 123: ... the appropriate tools According to recommendations of the axle manufacturer dismantle the entire hub remove bearings and individual sealing rings After careful washing and inspection mount lubricated elements If necessary bearing and seals should be replaced with new parts Lubrication of axle bearings shall be performed at least once in 2 years or every 50 000 km In case of intensive use lubricat...

Page 124: ... 2 A 6M 8 Articulated joints and sockets for installation of loading case 4 B 2M 9 Side extension lugs 10 A 1M 10 11 Sliding ramp guides 2 C 1M 12 Pins of sliding ramp links 6 C 1M 13 Pins and locks of walls 8 A 1M 14 Trailer shear type support 1 B 3M 15 Shear type support cylinder bearings 2 B 3M 16 Leaf spring sliding surface 4 B 6M 17 Suspension leaf spring 4 B 6M 18 Rocker arm spring 2 B 3M 19...

Page 125: ... periods M month D day 1 not shown on the figure FIGURE 5 13 Recommended lubricants MARKING FROM TAB 5 4 DESCRIPTION A General purpose solid machine grease lithium calcium B Solid grease for heavily loaded elements with addition of MOS2 or graphite C Regular machine silicon atomized oil When the machine is being used the user is obliged to observe lubrication instructions and recommended schedule ...

Page 126: ...Pronar PT512 CHAPTER 5 5 30 FIGURE 5 11 Trailer lubrication points part 1 ...

Page 127: ...CHAPTER 5 Pronar PT512 5 31 FIGURE 5 12 Trailer lubrication points part 2 ...

Page 128: ... system with the appropriate compound then comply with these recommendations Note that chemical compounds used for this purpose should not damage materials of the hydraulic system During normal trailer use change of hydraulic oil is not necessary but if required this operation should be entrusted to a specialist service point Due to composition of this kind of oil it is not classified as dangerous...

Page 129: ... and before longer idle periods e g before winter season Before using pressure washer the user is obliged to familiarize with the operating principles and recommendations concerning safe use of this equipment Trailer cleaning guidelines Before washing the trailer open all walls and extensions Carefully clean material residues from the loading case sweep out or blow out with compressed air especial...

Page 130: ... preserving compounds While washing with detergents wear appropriate protective clothing and splash proof goggles Washing detergent should be kept in original containers optionally in replacement containers but very clearly marked These compounds may not be stored in food and drink containers Care for the cleanness of flexible hoses and seals The plastic from which these elements are made may reac...

Page 131: ...tected using primer coat and then painted with surface paint according to color scheme In case of prolonged stoppage it is essential to lubricate all elements regardless of last lubrication Wheel rims and tires should be carefully washed and dried During prolonged storage of unused trailer it is recommended to move the trailer every 2 3 weeks so that the place of contact of tires with ground is ch...

Page 132: ...4 Bolt with metric thread 1 resistance class d thread diameter Unless other tightening parameters are given during maintenance and repairs apply appropriate torque to tightening nut and bolt connections Recommended tightening torque of most frequently applied bolt connections are given in table 5 6 Given values apply to non lubricated steel bolts Hydraulic lines should be tightened with torque of ...

Page 133: ...r extension Mount side extensions First install upper pins of extension in appropriate locks of rear posts and front walls and then secure base of extension by means of pin lugs to upper part of side wall Screw in the extension ladder to the front wall Disassembly of extensions should be performed in reverse order 5 12 ADJUSTMENT OF DRAWBAR POSITION Adjustment of drawbar position is achieved by ch...

Page 134: ...n provides 6 combinations for positioning drawbar see figure 5 15 Check degree of drawbar s body and rod tightening after first travel under load FIGURE 5 15 Adjustment of drawbar position 1 drawbar body 2 fixed rod 3 rotating rod 4 bolted joint ...

Page 135: ...arings Noise in drive axle hub Damaged hub elements Replace Poor efficiency of braking system Insufficient pressure in the system Check pressure on tractor pressure gauge wait till compressor fills tank to required pressure Damaged air compressor in the tractor Repair or replace Damaged brake valve in the tractor Repair or replace Leaks in the system Check system for tightness Incorrect adjustment...

Page 136: ...aminated cylinder Check cylinder piston bending corrosion check cylinder for tightness piston seal repair or replace cylinder if needed Excessive load of the cylinder Check mechanisms controlled by cylinder for mechanical damage Damaged hydraulic lines Check and ascertain that hydraulic conduits are tight not fractured and properly tightened If necessary replace or tighten ...

Page 137: ...NOTES ...

Page 138: ... ...

Page 139: ...ANNEX A Tire sizes TRAILER VERSION FRONT REAR AXLE PT512 385 65 R 22 5 PR 385 55 R 22 5 RE 385 55 R 22 5 385 65 R 22 5 TL Disc wheel 11 75x22 5 ET 0 ...

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PRONAR PT512, Operator'S Manual

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