PRONAR T028KM Operator'S Manual Download

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SECTION 4

PRONAR T028KM PRONAR T028ML

4.11

ATTENTION

Travel with a high-volume load by ruts, ditches roadside slopes etc. constitutes
a great risk of overturning the trailer. Exercise due caution.

•

While driving on public roads the extendible frame must be retracted.

•

Please note that the braking distance of the tractor and trailer combination is

substantially increased at higher speeds and loads.

•

Monitor trailer's behaviour when travelling on an uneven terrain, and adjust driving

speed to road conditions, slow down early enough when turning.

•

Prolonged driving across steep ground may lead to loss of braking efficiency.

4.5 UNLOADING

The trailer must be positioned to travel forwards and be hitched to the tractor. Unloading

should only take place when the trailer is placed on flat level surface and hitched to tractor.

DANGER

Ensure that during unloading nobody is in the vicinity of the load handled.

During work, keep a safe distance from overhead electric power lines.

While unloading long timber, be careful as there is a risk of colliding with the
surrounding objects.

It is recommended to unload the trailer using a loader, conveyor or forklift truck. During work,

ensure good visibility and exercise due caution. Immobilise tractor and trailer with parking

brake and switch off tractor engine. Place wheel chocks under trailer wheel. Just before

unloading, remove all securing elements (belts, ropes, etc.). Unloading the trailer should be

carried out in accordance with the general principles of workplace health and safety. If the

trailer is equipped with hydraulically lifted side walls, make sure if the load does not press the

side wall profiles. Move the load and its pressure before lifting the walls.

Summary of Contents for T028KM

Page 1: ... tel 48 085 681 63 29 48 085 681 64 29 48 085 681 63 81 48 085 681 63 82 fax 48 085 681 63 83 48 085 682 71 10 www pronar pl OPERATOR S MANUAL TRAILER PRONAR T028KM PRONAR T028ML TRANSLATION OF THE ORIGINAL DOCUMENT ISSUE 1A 04 2016 PUBLICATION NO 494N 00000000 UM ...

Page 2: ......

Page 3: ...ine 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 T028KM T028ML trailer If the inform...

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: ... WARRANTY 1 9 1 5 TRANSPORT 1 10 1 5 1 TRANSPORT ON VEHICLE 1 10 1 5 2 INDEPENDENT TRANSPORT BY THE USER 1 12 1 6 ENVIRONMENTAL HAZARDS 1 13 1 7 WITHDRAWAL FROM USE 1 14 2 SAFETY ADVICE 2 1 2 1 SAFETY INFORMATION 2 2 2 1 1 BASIC SAFETY RULES 2 2 2 1 2 DRIVING ON PUBLIC ROADS 2 6 2 1 3 DESCRIPTION OF RESIDUAL RISK 2 7 2 2 INFORMATION AND WARNING DECALS 2 8 3 DESIGN AND OPERATION 3 1 3 1 TECHNICAL S...

Page 8: ...3 4 1 4 PREPARING THE TRAILER FOR EVERYDAY OPERATION 4 4 4 2 HITCHING AND UNHITCHING OF THE TRAILER 4 5 4 3 LOADING AND SECURING LOAD 4 7 4 3 1 GENERAL INFORMATION ABOUT LOADING 4 7 4 3 2 SECURING LOAD 4 9 4 4 TRANSPORTING LOADS 4 9 4 5 UNLOADING 4 11 4 6 PROPER USE AND MAINTENANCE OF TYRES 4 12 5 MAINTENANCE 5 1 5 1 PRELIMINARY INFORMATION 5 2 5 2 SERVICING WHEEL AXLE 5 2 5 2 1 PRELIMINARY INFORM...

Page 9: ...ANK 5 20 5 4 2 CLEANING DRAIN VALVE 5 20 5 4 3 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS AND PNEUMATIC SOCKETS 5 21 5 5 HYDRAULIC SYSTEM MAINTENANCE 5 22 5 5 1 PRELIMINARY INFORMATION 5 22 5 5 2 CHECKING HYDRAULIC SYSTEM TIGHTNESS 5 22 5 5 3 CHECKING TECHNICAL CONDITION OF HYDRAULIC COUPLERS AND SOCKETS 5 23 5 5 4 REPLACEMENT OF HYDRAULIC LINES 5 23 5 6 LUBRICATION 5 23 5 6 1 CONSUMAB...

Page 10: ......

Page 11: ...SECTION 1 BASIC INFORMATION ...

Page 12: ...ple of vehicle identification number VIN Pronar T028KM and Pronar T028ML 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 figure 1 1 When buying the agricultural trailer check that the serial numbers on the machine agree with the number written in the ...

Page 13: ...hine tare weight G Maximum gross weight H Carrying capacity I Permissible hitching system loading J Permissible front axle load K Permissible rear axle load 1 1 2 AXLE IDENTIFICATION The serial number of the axle shaft and its type are stamped onto the data plate 1 secured to the axle shaft beam 2 figure 1 2 TIP In the event of ordering a replacement part or in the case of the appearance of proble...

Page 14: ... 4 FIGURE 1 2 Location of the axle data plate 1 data plate 2 wheel axle 1 1 3 LIST OF SERIAL NUMBERS TABLE 1 2 List of serial numbers VIN S Z B 0 2 8 0 X X SERIAL NUMBER OF FRONT AXLE SERIAL NUMBER OF CENTRAL AXLE SERIAL NUMBER OF REAR AXLE ...

Page 15: ...ducts and wood may be transported provided that the recommendations included in this manual especially the recommendations concerning protection of loads included in Section 4 3 2 are adhered to The trailer which is suitable for being used on public roads may not be longer than 12 metres DANGER The trailer must not be used for purposes other than those for which it is intended in particular for tr...

Page 16: ...he user is obliged to carefully read the OPERATOR S MANUAL and WARRANTY BOOK and conform with the recommendations contained in these documents understand the machine s operating principle and how to operate it safely and correctly adhere to the established maintenance and adjustment plans comply with general safety regulations while working prevent accidents comply with the road traffic regulation...

Page 17: ...bar bar bar according to A DIN 74 294 according to ISO 1728 according to ISO 7421 1 5 8 6 5 6 5 150 Electrical system Electrical system voltage Connection socket V 12 7 pole compliant with ISO 1724 Tractor hitches Type of hitch upper transport hitch Other requirements Min tractor power hp kW 150 110 2 1 3 EQUIPMENT TABLE 1 5 Specification SPECIFICATION STANDARD ADDITIONAL OPTION OPERATOR S MANUAL ...

Page 18: ...dguards front and rear Side under run protection devices Front and rear stanchions 4 pieces of each type Front and rear stanchions 4 pieces of each type side stanchions 16 pieces Rear hitch Slow moving vehicle warning sign Warning reflective triangle Wheel chocks 2 line pneumatic brake system with ALB regulator Hydraulic brake system TIP Information concerning tyres is provided at the end of this ...

Page 19: ...t cover those parts and sub assemblies of the machine which are subject to wear in normal usage conditions regardless of the warranty period Consumables include the following parts sub assemblies drawbar hitching eye pneumatic system connector filters tyres seals bearings bulbs and LED lamps brake shoes The warranty service only applies to factory defects and mechanical damage that is not due to t...

Page 20: ...the machine s technical documentation and any extra fittings The agricultural trailer is delivered to the user either transported on a vehicle or after being attached to a tractor independently towing with a tractor 1 5 1 TRANSPORT ON VEHICLE Loading and unloading of the agricultural trailer from vehicle shall be conducted using loading ramp with the aid of agricultural tractor overhead crane or h...

Page 21: ...he vehicle load platform planks or secured in another manner preventing their movement FIGURE 1 3 Transport lugs 1 transport lug 2 lower longitudinal frame Use certified and technically reliable securing measures Worn straps cracked securing catches bent or corroded hooks as well as elements damaged in a different way may be unsuitable for use Carefully read the information stated in the Operator ...

Page 22: ...egulations Driver of the vehicle should be particularly careful during travel Centre of gravity of the vehicle transporting the machine is shifted upwards which poses a threat to stability of the vehicle and transported machine Use only certified and technically reliable securing measures Carefully read the information contained in the Operator s Manuals for the given securing measures During relo...

Page 23: ...ying 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 Remaining oil should be collected using sorbents or by mixing the oil with sand sawdust or other absorbent mater...

Page 24: ...dismantle equipment oil shall be completely removed from hydraulic system Worn out or damaged parts that cannot be reclaimed should be taken to a collection point for recyclable raw materials Hydraulic oil should be taken to the appropriate facility dealing with the re use of this type of waste DANGER During dismantling use the appropriate tools equipment overhead travelling crane crane or hoist e...

Page 25: ...SECTION 2 SAFETY ADVICE ...

Page 26: ...f using the machine is to follow the safe operation rules and proceed reasonably The trailer 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 Non compliance with the safety rules of this Operator s Manual can be dangerous to the health and life of the operator and others The trailer must ...

Page 27: ...cattering of the load and danger while working or driving Before each use of the trailer check the technical condition of the trailer and tractor hitching system and connection elements of the braking system and electrical system Exercise caution when connecting and disconnecting machine from the tractor When hitching there must be nobody between the trailer and the tractor During hitching the tra...

Page 28: ...he Manufacturer Never mix two types of oil After changing the hydraulic oil the used oil should be properly disposed of Do not make independent repairs of control valve brake cylinders and braking force regulator In the event of damage to these elements repair should be entrusted to an authorised service point or elements should be replaced with new ones When working on the tyres chocks or other o...

Page 29: ...he general principles of workplace health and safety In the event of injury the wound must be immediately cleaned and disinfected In the event of more serious injuries seek a doctor s advice Repair maintenance and cleaning work should be carried out with the tractor engine turned off and the ignition key removed Regularly check the condition of the bolt and nut connections Before welding or electr...

Page 30: ...protective clothing and gloves when operating maintaining or cleaning the machine 2 1 2 DRIVING ON PUBLIC ROADS Comply with the road traffic regulations Exceeding the maximum load capacity of the trailer may damage it and also threaten the safety of traffic FIGURE 2 1 Mounting place for the slow moving vehicle warning sign 1 slow moving vehicle warning sign Do not exceed the maximum speed limit Ad...

Page 31: ...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 using trailer for purposes other than those described in the Operator s Manual being between the tractor and the trailer while the engine is running and when the machine is being attached operation of the trailer by persons under the...

Page 32: ...symbols located on the trailer are clear and legible In the event of their destruction they must be replaced with new ones Information and warning decals may be purchased directly from the Manufacturer or your PRONAR dealer Part numbers of information decals are given under pictogram description in table 2 1 and in SPARE PARTS LIST New assemblies changed during repair must be labelled once again w...

Page 33: ...ger of crushing the whole body Maintain safe distance from the ladders and the drawbar 147N 00000002 4 Regularly check if the nuts and bolts fixing the wheels and other components are properly tightened 104N 00000006 5 Grease the machine according to the recommendations in the OPERATOR S MANUAL 104N 00000004 6 Machine type 494N 00000001 7 Machine type 536N 00000001 ...

Page 34: ...PRONAR T028KM PRONAR T028ML SECTION 2 2 10 FIGURE 2 2 Locations of information and warning decals ...

Page 35: ...SECTION 3 DESIGN AND OPERATION ...

Page 36: ... surface with extended rear frame with retracted rear frame Width mm mm mm 11 650 10 550 2 410 13 100 12 000 2 410 Technical specification Carrying capacity Maximum gross weight Tare weight Height of platform from ground Load surface with extended rear frame with retracted rear frame kg kg kg mm m2 m2 18 500 24 000 5 500 1 110 27 2 24 5 17 500 24 000 6 500 1 110 32 3 29 6 Other information Electri...

Page 37: ...port Each trailer set uses the same frame 1 to which the trailer equipment is fixed as required by the customer The T028ML trailer load platform is two meters longer than the T028KM model FIGURE 3 1 Basic trailer model with ladders 1 frame load box 2 drawbar 3 under run guard 4 toolbox 5 spring 6 front ladder 7 rear ladder In the basic version figure 3 1 the front and rear parts of the load box ar...

Page 38: ... presents trailer options with hydraulically lifted side walls 6 The rear wall 7 and the front wall 8 are immovable hydraulic systems for lifting side walls are installed on them The system is powered by an external hydraulic system of an agricultural tractor The left wall and the side wall are controlled simultaneously by means of the hydraulic distributor provided in the front part of the traile...

Page 39: ...ing on public roads the extendible frame must be retracted into the transport position and secured by means of security locks 3 placed under the frame floor You can use the locks 5 to quickly change the inclination angle of both ladders The ladders can be installed in two positions determined by the ladder support holes The trailer frame is ended with a screwed in illumination bar 6 which is provi...

Page 40: ...gure 3 6 The standard set includes a V type drawbar with a ø40mm rigid tie rod The optional equipment also includes a Y type drawbar with a rigid tie rod with the same eye hole diameter The height of drawbar hitching eye can be adjusted by moving the catch 5 fixing the spring to the drawbar Front axle and rear axles are made from rectangular rod terminated with pins on which wheel hubs are mounted...

Page 41: ...7 FIGURE 3 5 Rear suspension 1 leaf spring 2 rocker arm 3 wheel axle 4 rubber fender FIGURE 3 6 Front suspension 1 turntable frame 2 V type drawbar 3 ball turntable 4 spring 5 spring catch 6 driving axle 7 leaf spring 8 fender mounting socket ...

Page 42: ...lder C section 2 welded to the trailer frame The design of the side under run guards enables their locking in the transport position and in the raised position FIGURE 3 7 Side under run guards 1 guard strip 2 fastening C bar 3 support 4 support wedges ATTENTION Side under run guards must not be used as supporting elements while climbing on the trailer s platform Before driving off make certain tha...

Page 43: ...rol valve is to activate the trailer s brakes when the brake pedal is depressed in the tractor Furthermore in case of an inadvertent disconnection of the conduit between the trailer and the tractor the control valve will automatically activate the trailer s brakes FIGURE 3 8 Diagram of the two line pneumatic system including the automatic braking power controller TABLE 3 2 List of symbols used on ...

Page 44: ...EANING Relay valve Automatic regulator of braking force Conduit connection connector Air tank Ram Valve control connection FIGURE 3 9 Brake pneumatic cylinders 1 membrane cylinder 2 control connection 3 short fork 4 long fork 5 pneumatic conduit 6 plug ...

Page 45: ...The automatic regulator does not require maintenance during normal use of the trailer 3 2 4 PARKING BRAKE The parking brake is for immobilising trailer while standing motionless The brake crank mechanism located on the left side of the frame is connected with the axle expander levers using a steel cable Rotation of the crank increases tension of the steel cable Expander arms exert pressure on brak...

Page 46: ...3 12 3 2 5 HYDRAULICALLY LIFTED SIDE WALLS FIGURE 3 11 Wall lifting hydraulic system 1 side wall 2 front columns 3 rear columns 4 arm 5 arm cylinder 6 carriage cylinder 7 six way valve 8 cable 9 carriage 10 connection hoses 11 lower profile ...

Page 47: ...ificantly facilitates the loading operation by expanding the operating area for the equipment loading up the trailer The carriages 9 are moved vertically by means of the cylinders 6 while the arms 4 are horizontally moved by means of the cylinders 5 All cylinders are supplied with hydraulic oil from an external system of an agricultural tractor The connection hoses 10 should be connected to releva...

Page 48: ...mp assembly 5 license plate light The trailer s electrical system is designed for supplying from direct current source of 12 V Connection of the trailer s electrical system with the tractor should be made through an appropriate connection lead delivered as standard equipment of the machine Arrangement of electrical system components and connection diagram of the connection socket are shown in figu...

Page 49: ... A view of socket B view of socket on the wiring harness fixing side TABLE 3 3 Marking of connection socket s connections MARKING FUNCTION 31 Ground 54 Power supply 12V L Left indicator 54 STOP light 58L Rear left parking light 58R Rear right parking light R Right indicator ...

Page 50: ...PRONAR T028KM PRONAR T028ML SECTION 3 3 16 ...

Page 51: ...SECTION 4 CORRECT USE ...

Page 52: ... of use of the machine risks resulting from the use for purposes other than intended the method of the machine hitching and the principles of the machine construction and design Detailed information concerning the machine hand over are included in the WARRANTY BOOK 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 selle...

Page 53: ...the trailer according to the guidelines presented in section PREPARING THE TRAILER FOR USE Hitch machine to tractor Immobilise tractor with parking brake Test start Check all the trailer s lubrication points lubricate the machine as needed according to recommendations provided in section 5 Check if the nuts and bolts fixing the wheels are properly tightened Drain air tank of the brake system Ensur...

Page 54: ...ATION 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 Non compliance with the safety rules of this Operator s...

Page 55: ...c conduits to the tractor make sure that the hydraulic and pneumatic systems of the tractor and the trailer are not under pressure Ensure sufficient visibility during hitching After completion of hitching check the security of the hitching pin Hitching to tractor Position agricultural tractor directly in front of the trailer s drawbar eye Reverse tractor hitch trailer to appropriate hitch on tract...

Page 56: ...g brake When turning connecting conduits must hang loosely and not become tangled with moving elements of machine and tractor ATTENTION The trailer must not be used when not in working order DANGER Exercise caution when disconnecting trailer from the tractor Ensure good visibility Unless it is necessary do not go between tractor and machine Before disconnecting conduits and drawbar eye close tract...

Page 57: ...ds with covers Release tractor hitch drive tractor away from the slurry tanker 4 3 LOADING AND SECURING LOAD 4 3 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 The machine is also designed for transport of agricultural produce and products carried on pallet...

Page 58: ...or unloading the trailer bystanders must exercise caution and keep a safe distance from danger zones Load should be uniformly distributed along the length and width of the platform in order to ensure proper distribution of axle loads and proper stability of the trailer Load must not extend beyond the outline of the load platform Number of load layers depends on size of pressed bales or blocks thei...

Page 59: ...nds conditions limit the load height according to existing conditions Regardless of the type of load carried the user is obliged to secure it in such a manner that the load is unable to spread and cause contamination of the road Due to diversity of materials tools methods of fixing and securing the load it is impossible to describe all methods of loading While working be guided by caution and own ...

Page 60: ... roads trailer must be marked with a slow moving vehicle warning sign attached to the rear wall of load box if the trailer is the last vehicle in the group While driving on public roads the trailer must be fitted with a certified or authorised reflective warning triangle When driving comply with all road traffic regulations indicate an intention to turn using indicator lamps keep all road lights a...

Page 61: ...hen the trailer is placed on flat level surface and hitched to tractor DANGER Ensure that during unloading nobody is in the vicinity of the load handled During work keep a safe distance from overhead electric power lines While unloading long timber be careful as there is a risk of colliding with the surrounding objects It is recommended to unload the trailer using a loader conveyor or forklift tru...

Page 62: ... in section 5 MAINTENANCE Regularly check and maintain correct air pressure in tyres according to Operator s Manual especially if trailer is not used for a longer period Air pressure in tyres should be also checked during the whole day of intensive work Please note that higher temperatures could raise tyre pressure by as much as 1 bar At high temperatures and pressure reduce load or speed Do not r...

Page 63: ...SECTION 5 MAINTENANCE ...

Page 64: ...s section In the event of unauthorised repairs changes to factory settings and other actions which are not regarded as possible for the trailer operator to perform the user shall invalidate the warranty 5 2 SERVICING WHEEL AXLE 5 2 1 PRELIMINARY INFORMATION Work connected with the repair change or regeneration of axle components should be entrusted to specialist establishments having the appropria...

Page 65: ... vehicle service stations 5 2 2 CHECK WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5 1 Lifting jack support point 1 wheel axle 2 U bolt Preparation procedures Hitch trailer to tractor braking tractor with parking brake Park the trailer on hard level ground Tractor must be placed to drive forward Place chocks under the trailer s wheel that will not be raised Ensure that machine will not move during ins...

Page 66: ...may use a lever placed under the wheel supporting the other end of the lever on the floor Lower the lifting jack relocate the chocks to the other wheel and repeat the inspection procedure for the other wheels TIP If hub cover is damaged or missing contamination and dampness enter the hub which causes significantly faster wear of bearing and hub seals Bearing life is dependent on working conditions...

Page 67: ...ead the instructions for lifting and adhere to the manufacturer s instructions The lifting jack must be stably supported by the ground and so must the axle Ensure that trailer shall not move during inspection of axle bearing slackness 5 2 3 ADJUSTMENT OF AXLE BEARING SLACKNESS The wheel should turn smoothly without stiffness or detectable resistance Adjustment of bearing slackness may only be cond...

Page 68: ...ecure castellated nut with cotter pin and mount the hub cap Delicately tap hub cap with rubber or wooden hammer 5 2 4 MOUNTING AND DISMOUNTING WHEEL INSPECTION OF WHEEL NUT TIGHTENING Dismounting wheel Place chocks under the wheel that will not be dismounted Ensure that trailer shall not move during wheel dismounting Loosen wheel nuts according to the sequence shown in figure 5 4 Place lifting jac...

Page 69: ...tighten nuts according to recommended torque and given sequence Tightening nuts TIP Wheel nuts should be tightened using the torque of 450 Nm M22x1 5 nuts Nuts should be tightened gradually diagonally in several stages until obtaining the required tightening torque using a torque spanner Tightening of nuts should be checked with the frequency given in the below table The activities should be repea...

Page 70: ...r changing spare wheel and not less than every month In the event of intensive use air pressure in tyres should be checked more frequently During this time trailer must be unloaded Checking should be done before travelling when tyres are not heated or after an extended period of parking DANGER Damaged tyres or wheels may be the cause of a serious accident While checking pressure pay attention to t...

Page 71: ...drum 2 disc 3 inspection openings G thickness of brake shoe lining TIP Minimum thickness of brake shoe linings is 2 mm During the trailer operation drum brake linings are subjected to wear In such a case the complete brake shoes should be replaced with new ones INSPECTION Thickness of brake shoe linings should be checked every 6 months ...

Page 72: ...raking 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 7 ATTENTION Incorrectly adjusted brake may cause rubbing of brake shoes against brake drums which may lead to faster wear of brake linings and or brake overheating Braking force decreases also when the operating angl...

Page 73: ...condition of brake every 6 months The inspection involves measuring the extension length of each brake cylinder piston while braking at parking If the brake cylinder piston stroke exceeds the maximum value 45 mm the braking system should be adjusted Required maintenance activities Hitch the trailer to tractor Turn off tractor engine and remove key from ignition Immobilise tractor with parking brak...

Page 74: ... 5 of brake cylinder fork 4 in expander arm opening 3 Check if the brake cylinder piston moves freely and within the whole nominal range Check if the brake cylinder vent holes are not blocked with impurities and that there is no water or ice inside the brake cylinder Check if the brake cylinder is correctly installed Clean the brake cylinder If necessary defrost the brake cylinder and drain water ...

Page 75: ... pin 6 brake cylinder bracket A mark on the brake cylinder at brake release position B mark on the brake cylinder at full braking position C position of arm at brake release position D position of arm at full braking position Install the brake cylinder fork pin and washers and secure the pin with cotter pins Repeat adjustment activities for the other brake cylinder on the same axle Engage the brak...

Page 76: ...d the correct brake cable tension Replacing the parking brake cable Hitch the 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 Grease the bolt mechanism of the parking brake and pins of cable guide rollers see section LUBRICATIO...

Page 77: ... parking brake the cable would be loose and hanging by 1 2 cm ATTENTION Parking brake cable clamps must be installed as shown in figure 5 8 i e clamp bracket 2 must be installed on the side of the shorter brake cable section Tighten nuts using tightening torque given in table TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS Adjustment of parking brake cable tension should be conducted in the event o...

Page 78: ...ith 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 The duties of the operator connected with the pneumatic system include checking tightness and visual inspection of the system cleaning the air filter...

Page 79: ...ders Repeat system check with depressed tractor brake pedal The help of a second person is required In the event of the appearance of leaks compressed air will escape at the places of damage with a characteristic hiss Lack of system tightness may be also detected by covering checked elements with washing fluid or other foaming preparations which will not react aggressively with system components I...

Page 80: ...rmanently deformed cut or worn conduits should be replaced INSPECTION Each time during tightness inspection 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 mechanicall...

Page 81: ...er 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 washed out and blown through with compressed air Assembly should be done in reverse order DANGER Before proceeding to dismantle filter reduce pressure in supply conduit While disengaging filter slide gate hold cover with other hand Stand a...

Page 82: ...ing to its setting then the whole drain valve must be unscrewed and cleaned or replaced if it is damaged see section CLEANING DRAIN VALVE 5 4 2 CLEANING DRAIN VALVE DANGER Release air from tank before dismantling drain valve Required maintenance activities Completely reduce pressure in air tank Reduction of pressure in tank is achieved by tilting the drain valve stem Unscrew both valves Clean the ...

Page 83: ...ew reliable elements Contact of pneumatic connection seals with oils grease petrol etc may cause damage and accelerate ageing process If the trailer is unhitched from the tractor connections should be protected by cover or placed in their designated socket Before the winter period it is recommended to preserve the seal with special preparations e g silicon grease for rubber elements Each time befo...

Page 84: ...STEM TIGHTNESS Required maintenance activities Hitch the trailer to tractor Connect conduits of raised wall hydraulic system according to the recommendations in the Operator s Manual Clean connectors and hydraulic cylinders Start the tractor s engine and raise and lower both walls several times Leave the cylinders in the maximally extended position Switch off tractor engine and check hydraulic cyl...

Page 85: ...esence of permanent contamination which may cause damage to precision system components INSPECTION each time before hitching trailer to tractor 5 5 4 REPLACEMENT OF HYDRAULIC LINES INSPECTION every 4 years Rubber hydraulic lines must be replaced every 4 years regardless of their technical condition This should be entrusted to specialised workshops 5 6 LUBRICATION Trailer lubrication should be perf...

Page 86: ...earings shall be performed at least once in 2 years TABLE 5 2 Lubrication schedule ITEM LUBRICATION POINT NUMBER OF LUBRICATION POINTS TYPE OF GREASE FREQUENCY 1 Hub bearing 12 A 24M 2 Drawbar eye 1 B 14D 3 Handbrake mechanism 1 A 6M 4 Handbrake cable guide wheel axle 2 A 6M 5 Expander shaft slide sleeve 6 A 3M 6 Drawbar pin 2 B 3M 7 Leaf spring absorbers 6 C 3M 8 Leaf spring absorber sliding surf...

Page 87: ...on of MoS2 or graphite C Anti corrosion and penetrating preparation in aerosol Empty grease or oil containers should be disposed of according to the recommendations of the lubricant Manufacturer TIP 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 lubricatio...

Page 88: ...PRONAR T028KM PRONAR T028ML SECTION 5 5 26 FIGURE 5 12 Trailer s lubrication points ...

Page 89: ...e of hydraulic oil is not necessary but if required this operation should be entrusted to a specialist service point TABLE 5 4 L HL 32 Lotos hydraulic oil characteristics ITEM NAME UNIT VALUE 1 ISO 3448VG viscosity classification 32 2 Kinematic viscosity at 40 C mm2 s 28 8 35 2 3 ISO 6743 99 quality classification HL 4 DIN 51502 quality classification HL 5 Flash point C 230 Because of its composit...

Page 90: ...en lubricant as well as waste disposal procedure used containers contaminated rags etc Information leaflet material safety data sheet should be kept together with grease 5 7 TRAILER CLEANING The trailer should be cleaned as needed Before using pressure washer the user is obliged to acquaint himself with the operating principles and recommendations concerning safe use of this equipment The trailer ...

Page 91: ...nts Detergents should be kept in original containers optionally in replacement containers but very clearly marked Preparations may not be stored in food and drink containers Ensure cleanliness of elastic conduits and seals The plastic from which these elements are made may be susceptible to organic substances and some detergents As a result of long term reaction of some substances the ageing proce...

Page 92: ...t of prolonged work stoppage it is essential to lubricate all elements regardless of the date of the last lubrication Wheel rims and tyres should be carefully washed and dried During a longer storage of unused trailer it is recommended that the machine should be moved a bit once every 2 3 weeks in order to change the place of contact of tyres with the ground The tyres will not be deformed and main...

Page 93: ...ess other tightening parameters are given during maintenance repair work apply appropriate torque to tighten nut and bolt connections Recommended tightening torque values for the most frequently used bolt and nut connections are given in table 5 6 Given values apply to non lubricated steel bolts TIP Hydraulic lines should be tightened using torque of 50 70 Nm FIGURE 5 13 Bolt with metric thread 1 ...

Page 94: ...e selected individually depending on the height of the hitch on the tractor that will pull the trailer If possible adjust the tractor hitch in such a manner that the trailer drawbar is set in horizontal position FIGURE 5 14 Adjustment of drawbar position 1 adjusting clamp 2 spring 3 drawbar Scope of adjustment activities Immobilise trailer with parking brake Prevent the trailer from rolling by pla...

Page 95: ... conduits Replace Leaking connections Tighten replace washers or seal sets replace conduits Problem with moving off Control valve or braking force regulator damaged Check valve repair or replace Excessive bearing slackness Check slackness and adjust if needed Damaged bearing Replace bearing Noise in axle hubs Damaged hub parts Replace Poor reliability of braking system Insufficient pressure in sys...

Page 96: ...ding Check and reduce cylinder load if necessary Incorrect hydraulic system operation Damaged hydraulic lines Check and ascertain that hydraulic lines are tight not fractured and properly tightened If necessary replace or tighten Excessive wear of left and right tyre shoulders on both sides Too low air pressure in tyres Excessive speed of travel of loaded trailer on turns Too fast loss of air due ...

Page 97: ...eck leaf springs Replace damaged or worn elements Check brake system for malfunctions Adjust expander lever Side crack Prolonged use of tyre with low air pressure Excessive loading of the trailer Regularly check air pressure in tyres Check weight of load while loading Abrasions on external side edge of tyre Too frequent driving over sharp or high obstacles e g curbs Control driving technique Damag...

Page 98: ...PRONAR T028KM PRONAR T028ML SECTION 5 5 36 ...

Page 99: ...NOTES ...

Page 100: ... ...

Page 101: ...ANNEX A FRONT REAR AXLE DISC WHEEL 445 45R19 5 160J 14x19 5 ET 30 560 45 R22 5 152D 163A8 TL 16 00x22 5H2 500 60R22 5 155D 166A8 16 00x22 5H2 ET 30 385 65 R22 5 TL 11 75x22 5 ET 30 ...

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