PRONAR T679 Page 95 Operator'S Manual Download

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SECTION 5

Pronar T679

5.5

5.2.4 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS

FIGURE 5.2

Lifting jack support point

(1) wheel axle, (2) U bolt

Preparation procedures

Hitch trailer to tractor, braking tractor with parking brake.

Park tractor and trailer on hard level ground.

Tractor must be placed to drive forward.

Place the wheel chocks under the wheel opposite to the lifted wheel. Ensure

that trailer shall not move during inspection.

Raise the wheel (opposite to the side where chocks are placed).

The lifting jack should be placed under the axle between U bolts (2) -

figure (5.2) securing axle (1) to shock absorber leaf springs, or as near

as possible to leaf spring mounting. Recommended fulcrum is marked

with an arrow. Lifting jack must be suitable for the weight of trailer.

Checking wheel axle bearings for slackness

Summary of Contents for T679

Page 1: ...l 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 AGRICULTURAL TRAILER PRONAR T679 TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL ISSUE 3A 03 2012 PUBLICATION NO 64N 00000000 UM ...

Page 2: ......

Page 3: ...on 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 rules and operation of agricultural trailer Pronar T679 If the inf...

Page 4: ...articularly 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 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 maintenance the relevant section of the Operat...

Page 5: ...ction of machine s forward travel Right side side to the right hand of the operator facing in the direction of machine s forward travel REQUIRED SERVICE ACTIONS Service actions described in the manual are marked Result of service adjustment actions or comments concerning the performance of actions are marked ...

Page 6: ......

Page 7: ...NDENT TRANSPORT BY THE USER 1 14 1 6 ENVIRONMENTAL HAZARDS 1 14 1 7 WITHDRAWAL FROM USE 1 15 2 SAFETY ADVICE 2 1 2 1 BASIC SAFETY RULES 2 2 2 1 1 USE OF TRAILER 2 2 2 1 2 HITCHING AND UNHITCHING FROM TRACTOR 2 63 2 1 3 HITCHING AND UNHITCHING THE SECOND TRAILER 2 96 2 1 4 HYDRAULIC SYSTEM AND PNEUMATIC SYSTEM 2 121 2 1 5 LOADING AND UNLOADING 2 174 2 1 6 TRANSPORTING THE MACHINE 2 243 2 1 7 TYRES ...

Page 8: ...WORK BEFORE THE FIRST USE 4 2 4 1 1 CHECKING THE TRAILER AFTER DELIVERY 4 2 4 1 2 PREPARING THE TRAILER FOR THE FIRST HITCHING TO TRACTOR 4 3 4 2 HITCHING AND UNHITCHING THE TRAILER FROM TRACTOR 4 4 4 3 HITCHING AND UNHITCHING THE SECOND TRAILER 4 8 4 4 LOADING AND SECURING LOAD 4 10 4 4 1 GENERAL INFORMATION ABOUT LOADING 4 10 4 5 TRANSPORTING LOAD 4 17 4 6 UNLOADING 4 19 4 7 PROPER USE AND MAINT...

Page 9: ... 16 5 3 1 PRELIMINARY INFORMATION 5 16 5 3 2 CHECKING AIR TIGHTNESS AND VISUAL INSPECTION OF PNEUMATIC SYSTEM 5 17 5 3 3 CLEANING THE AIR FILTERS 5 19 5 3 4 DRAINING WATER FROM AIR TANK 5 20 5 3 5 CLEANING THE DRAIN VALVE 5 21 5 3 6 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS AND PNEUMATIC SOCKETS 5 22 5 3 7 REPLACEMENT OF PNEUMATIC CONDUIT 5 22 5 4 HYDRAULIC SYSTEM MAINTENANCE 5 23 5 4...

Page 10: ... 5 32 5 7 2 LUBRICANTS 5 33 5 8 CLEANING THE TRAILER 5 34 5 9 STORAGE 5 35 5 10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5 36 5 11 INSTALLATION AND DISASSEMBLY OF THE FRAME AND TARPAULIN COVER 5 37 5 12 ADJUSTMENT OF DRAWBAR POSITION 5 39 5 13 TROUBLESHOOTING 5 41 ...

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

Page 12: ...factory number 2 located on a gold painted rectangle The serial number and data plate are located on the front beam of the lower frame figure 1 1 When buying the trailer check that the serial numbers on the machine agree with the number written in the WARRANTY BOOK in the sales documents and in the OPERATOR S MANUAL The meanings of the individual fields found on the data plate are presented in the...

Page 13: ...digit vehicle identification number VIN E Official certificate number F 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 wheel axle and its type are stamped onto the data plate 2 secured to the wheel axle beam 1 figure 1 2 ...

Page 14: ... ordering a replacement part or in the case of the appearance of problems it is often essential to give the factory numbers of parts or the VIN number of the trailer therefore it is recommended that these numbers are inscribed in the spaces below VIN S Z B 6 7 9 0 X X X FRONT AXLE FACTORY NUMBER AND TYPE REAR AXLE FACTORY NUMBER AND TYPE ...

Page 15: ...ically aggressive loads that will corrode the structural elements of the trailer causing corrosion of steel destruction of paint coat dissolving plastic elements and destruction of rubber elements etc transport incorrectly secured load which during travel may cause contamination of the road and natural environment transport incorrectly secured load which during travel may change position in load b...

Page 16: ...ations while working prevent accidents comply with the road traffic regulations and transport regulations in force in a given country in which the trailer is used carefully read the Operator s Manual and comply with its recommendations only hitch the trailer to an agricultural tractor which fulfils all the requirements made by the trailer s Manufacturer The trailer may only be used by persons who ...

Page 17: ...ipper system Hydraulic oil Maximum system pressure Oil demand bar MPa l L HL 32 Lotos 1 200 20 18 Electrical system Electrical system voltage Connection socket V 12 7 pole socket compliant with ISO 1724 Required tractor hitch Type Minimum static vertical load capacity S kg transport hitch 1 950 Other requirements Minimum tractor power kW hp 61 82 2 1 use of other oil is permitted on condition that...

Page 18: ... Minimum system pressure bar MPa L HL 32 Lotos 1 200 20 Electrical system Electrical system voltage Connection socket V 12 7 pole socket compliant with ISO 1724 Trailer s drawbar Type Drawbar eye diameter mm swing double axle trailer 40 1 use of other oil is permitted on condition that it may be mixed with the oil in the trailer Detailed information can be found on the product information card 1 3...

Page 19: ...it pneumatic system with rear connector Double conduit pneumatic system without rear connectors Double conduit pneumatic system with rear connectors Double conduit pneumatic system with ALB without rear connectors Double conduit pneumatic system with ALB with rear connectors Complete set of wall extensions 580 Frame with tarpaulin cover Fenced platform Automatic rear hitch Rear hitch Rotating draw...

Page 20: ...ONAR 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 The warranty does not 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 follow...

Page 21: ...y make the user ineligible for any warranty repair or refund 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 warranty or not For detailed Terms Conditions of Warranty please refer to the WARRANTY BOOK attached to each newly purchased machine Modification of the trailer withou...

Page 22: ...e securing measures Worn straps cracked securing catches bent or corroded hooks as well as elements damaged in a different way may be unsuitable for use Carefully read the information stated in the Operator s Manual for the given securing measure Chocks wooden blocks or other objects without sharp edges should be placed under the wheels of the trailer to prevent it from rolling Trailer wheel block...

Page 23: ...f gravity shifting upwards when loaded with the 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 reloading work particular care should be taken not to damage parts of the machine s equipment or the paint coating The tare weight of the trailer in condition ready for travel ...

Page 24: ...ving in the aquatic environment The formation of a film of oil on the water may be the direct cause of physical action on organism perhaps causing change of oxygen values in the water because of lack of direct contact of air with the water 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 o...

Page 25: ...ecision by the user to withdraw the trailer from use comply with the regulations in force in the given country concerning withdrawal from use and recycling of machines withdrawn from use Before commencing dismantling totally remove the oil from the hydraulic system and reduce air pressure completely in the pneumatic braking system e g using air tank drain valve When spare parts are changed worn ou...

Page 26: ...Pronar T679 SECTION 1 1 16 ...

Page 27: ...SECTION 2 SAFETY ADVICE ...

Page 28: ...f the residual risk Use caution when operating this machine and follow all relevant safety instructions 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 drugs or other abusive substances Non compliance with the safety rules of this Operator s Manual can be dangerous to the health and life of...

Page 29: ...he trailer to a tractor use exclusively the tractor hitch for single axle trailers After completed hitching of the machines check that the hitch is properly secured Carefully read the tractor Operator s Manual If the tractor is equipped with an automatic hitch make certain that the coupling operation is completed Be especially careful when hitching the machine When hitching there must be nobody be...

Page 30: ...ng angle of the load box when tipped to the rear The length of the control cable controlling this valve is factory adjusted by the Manufacturer and must not be changed when the trailer is used In the event of malfunction of the hydraulic or pneumatic system do not use the trailer until the malfunction is corrected When connecting the hydraulic conduits to the tractor make sure that the hydraulic s...

Page 31: ...tractor Tractor and trailer must be placed to drive forwards Loading and unloading work should be carried out by persons experienced in this type of work The load must be arranged in such a way that it does not threaten the stability of the trailer and does not hinder driving Do NOT drive with the load box raised Ensure that during unloading loading or raising the load box nobody is near the trail...

Page 32: ...ading Lower the load box before proceeding to deal with a malfunction If it is necessary to raise the load box then secure it against dropping with the aid of load box support The load box may not be loaded and the trailer must be connected to a tractor and secured with the aid of chocks and also immobilised with the parking brake After completed unloading ensure that the load box is empty 2 1 6 T...

Page 33: ...heck the technical condition of the hitch system the axle system the brake system indicator lights and the connective elements of the hydraulic pneumatic and electrical systems FIGURE 2 1 Method of placing chocks 1 wheel chock 2 axle wheel Before driving off check that the parking brake is released the braking force regulator is positioned in the proper position applies to pneumatic systems with a...

Page 34: ...dge of the trailer should be marked according to the road traffic regulations Do NOT transport loads forbidden by the Manufacturer Do NOT exceed the trailer s maximum carrying capacity Exceeding the carrying capacity may lead to damage to the machine loss of stability while driving scattering of the load and danger while driving The brake system is adjusted to the gross weight of the trailer Excee...

Page 35: ...ing chocks under wheel Wheels can be taken off the trailer axle only when the trailer is not loaded Repair work on the wheels or tyres should be carried out by persons trained and entitled to do so This work should be carried out using appropriate tools Inspection of nut tightening should be carried out after first use of trailer after first travel with load and then after 6 months use In the even...

Page 36: ...iler wheels Ensure that unauthorised persons do not have access to the tractor cab Regularly check the condition of nut and bolt connections in particular connections of drawbar eye with drawbar and wheel nuts Regularly service machine according to schedule defined by Manufacturer Before beginning work that require the load box to be raised the load box must be emptied and secured by supports to p...

Page 37: ...lements parts of the pneumatic electric and hydraulic systems plastic parts If there is a risk that they will catch fire or be damaged they should be removed or covered with non flammable material before commencing welding work Before beginning work prepare a CO2 or foam extinguisher In the event of work requiring the trailer to be raised use properly certified hydraulic or mechanical lifts for th...

Page 38: ... residual risk which could lead to an accident and this is connected mainly with the actions described below using the trailer for purposes other than those for which it is intended being between the tractor and the trailer while the engine is running and when the machine is being attached or hitched to second trailer being on the machine during work not maintaining safe distance during loading or...

Page 39: ...led with the information and warning decals mentioned in table 2 1 The symbols are positioned as shown in figure 2 3 Throughout the time it is in use the user of the machine is obliged to take care that notices and warning and information symbols located on the trailer are clear and legible In the event of their destruction they must be replaced with new ones Safety decals are available from your ...

Page 40: ...ailer according to the recommendations in the Operator s Manual 5 Regularly check if the nuts and bolts fixing the wheels and other components are properly tightened 6 Before beginning servicing or repairs turn off tractor engine and remove key from ignition Ensure that unauthorised persons do not have access to the tractor cab ...

Page 41: ...from overhead electric power lines during unloading 8 Danger of crushing Do NOT perform any maintenance or repairs on the load box that is loaded raised or not supported 9 Danger of crushing Maintain a safe distance when opening and closing the tailgate 10 Transport decal Anchorages for the transport ...

Page 42: ... 2 trailers 14 Conduit supplying hydraulic brake system 15 Conduit supplying hydraulic tipping system 16 Supply conduit of the shear type support s hydraulic system lowering 17 Supply conduit of the shear type support s hydraulic system raising 18 Supply conduit of the straight support s hydraulic system withdrawing extending 19 Supply conduit of tailgate s hydraulic system closing ...

Page 43: ...pply conduit of tailgate s hydraulic system opening 1 pressure value should be adapted to tyres Numbers in the item column correspond to labels in figure 2 3 Decal 13 is placed near the hydraulic valve Decals 14 20 are placed on the hydraulic conduits ...

Page 44: ...Pronar T679 SECTION 2 2 18 FIGURE 2 3 Locations of information and warning decals ...

Page 45: ...SECTION 3 DESIGN AND OPERATION ...

Page 46: ...4 500 2 200 2 250 1 000 580 Weight and carrying capacity Tare weight Maximum gross weight Maximum carrying capacity kg kg kg 4 000 16 000 12 000 Other information Wheel track Maximum drawbar load Cargo capacity Load surface Lift of load surface Load box tipping angle to the rear Electrical system voltage Hydraulic oil demand Tractor power demand Maximum design speed Noise emission level mm kg m3 m...

Page 47: ...two wheel axles 8 in a tandem arrangement suspended on taper leaf springs 9 connected by rocker arm 10 Axles are secured to suspension springs using absorber plates and U bolts Axles are made from bar terminated with a pins where wheel hubs are mounted on cone bearings The wheels are single and equipped with shoe brakes activated by mechanical cam expanders In the front part of the chassis parking...

Page 48: ... 2 shaft 3 shear type support 4 wheel chocks 5 tipping cylinder suspension seat 6 load box support 7 lights support beam 8 wheel axle 9 shock absorber 10 shock absorber rocker arm 11 13 drawbar eye 14 parking brake mechanism 15 under run protective device 16 mudguards ...

Page 49: ...SECTION 3 Pronar T679 3 5 3 2 2 LOAD BOX FIGURE 3 2 Load box 1 load box 2 wall extensions 580 mm 3 wing of the tailgate 4 fenced platform option 5 lower ladder 6 wall extension ladder ...

Page 50: ...nt wall and extension Folding steps are bolted on the inner side of the front wall to facilitate climbing into the load box Fenced platform 4 and tarpaulin cover with a frame are available as additional equipment At the rear of the load box there is a wing mounted tailgate 3 It is opened and closed by means of hydraulic cylinders FIGURE 3 3 Rear wall slide gate 1 tailgate 2 slide gate 3 chute In o...

Page 51: ...raulic brake is activated from the tractor driver s cab by depressing the brake pedal The function of the control valve 2 figure 3 4 3 5 and 3 6 is to activate the trailer s brakes simultaneously with the tractor s brakes 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 The valv...

Page 52: ...single conduit pneumatic braking system 1 air tank 2 control valve 3 manual braking force regulator 4 pneumatic cylinder 5 conduit connector black 6 air filter 7 air tank control connector 8 pneumatic cylinder control connector 9 drain valve 10 socket black option ...

Page 53: ...ng system 1 air tank 2 control valve 3 manual brake force regulator 4 pneumatic cylinder 5 conduit connector red 6 conduit connector yellow 7 air filter 8 air tank control connector 9 pneumatic cylinder control connector 10 drain valve 11 socket red option 12 socket yellow option 13 relay valve ...

Page 54: ...n automatic regulator 1 air tank 2 control valve 3 automatic brake force regulator 4 pneumatic cylinder 5 conduit connector red 6 conduit connector yellow 7 air filter 8 air tank control connector 9 pneumatic cylinder control connector 10 drain valve 11 socket red option 12 socket yellow option 13 relay valve ...

Page 55: ...n decal Three step braking force regulator 2 figure 3 8 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 Three working positions are available A no load B half load and C full load For systems with automatic regulator braking force depends on trailer load ...

Page 56: ...ping system ensures automatic unloading of trailer by tipping the load box to the rear The hydraulic tipping system is supplied with oil from the tractor s hydraulic system Hydraulic oil manifold of the tractor s external hydraulic system is used to control the load box tipping mechanism The trailer system consists of two independent circuits circuit A to supply the trailer s hydraulic cylinder ci...

Page 57: ...y valve 3 cut off valve 4 quick coupler 5 socket 6 control cable 7 guide roller 8 9 information decal Three way valve 2 figure 3 9 activates these circuits This valve s lever can be placed in two positions 1 the trailer s tipping circuit is opened circuit A 2 the second trailer s tipping circuit is opened circuit B ...

Page 58: ...ng and unhitching the trailer The parking stand hydraulic system is supplied with oil by the tractor hydraulics The parking stand is extended or withdrawn by extending or withdrawing a hydraulic cylinder Hydraulic oil manifold of the tractor s external hydraulic system controls the support cylinder Two types of hydraulic supports are used in the trailer straight hydraulic support figure 3 9 standa...

Page 59: ...e drawbar support figure 3 10 consists of return conduit 1 and supply conduit 2 control valve and cylinder 4 Hydraulic oil delivered from the tractor hydraulic manifold to line 2 extends the cylinder piston lowering the support The support is raised to transport position when oil under pressure is supplied to conduit 1 The support can be lowered or raised only when valve 5 is set in O position ope...

Page 60: ...Pronar T679 SECTION 3 3 16 FIGURE 3 11 Design and diagram of the shear type support hydraulic system 1 return conduit 2 supply conduit 3 shear type support 4 cylinder 5 8 information decals ...

Page 61: ...RE 3 12 Design and diagram of the tailgate hydraulic system 1 hydraulic cylinder 2 supply conduit 3 return conduit 4 locking hook 5 tailgate wing Tailgate hydraulic system is used to raise and lower the trailer tailgate and control the operation of locking hooks 4 ...

Page 62: ...ydraulic system When raising the tailgate the locking hooks 4 unlock the tailgate then cylinders raise it by with two wings 5 When closing the cylinders lower the load box and in the final phase locking hooks 4 lock the load box 3 2 7 PARKING BRAKE FIGURE 3 13 Parking brake design 1 expander arm 2 brake crank mechanism 3 steel cable I 4 steel cable II 5 lever 6 guide roller The parking brake is us...

Page 63: ...auses deflection of the lever 5 and tension of cable II 4 causing a deflection of the brake expander arms 1 which immobilize the trailer by parting the brake shoes 3 2 8 LIGHTING SYSTEM The trailer electrical system is designed for supply from direct current source of 12 V Connection of the trailer electrical system with the tractor should be made through an appropriate connection lead FIGURE 3 14...

Page 64: ...E 3 15 Positioning of electrical components and reflectors at the back 1 rear left lamp assembly 2 rear right lamp assembly 3 license plate light 4 reflective warning triangle 5 7 pin socket 6 rear clearance lamp 7 side parking light ...

Page 65: ...SECTION 3 Pronar T679 3 21 FIGURE 3 16 Electrical system schematic diagram the versions without the side lamps Marking according to table 3 2 3 3 and 3 4 ...

Page 66: ...ht OTL Left license plate light PP Front right parking light PL Front left parking light TOP Rear right clearance light TOL Rear left clearance light OBL Left side clearance lamp OBP Right side clearance lamp TABLE 3 3 Marking of connections of GT and X7P sockets MARKING FUNCTION 31 Ground Power supply 12V not used L Left indicator 54 STOP light 58L Rear left parking light 58R Rear right parking l...

Page 67: ...SECTION 3 Pronar T679 3 23 TABLE 3 4 Lead colour marking MARKING COLOUR B White C Black K Red N Blue P Orange T Green C T Black and green R Pink ...

Page 68: ...Pronar T679 SECTION 3 3 24 ...

Page 69: ...SECTION 4 CORRECT USE ...

Page 70: ...nual and observe all recommendations understand the design and the principle of machine operation ATTENTION Before hitching to tractor and using the trailer the user must carefully read this Operator s Manual and observe all recommendations External inspection Check completeness of machine standard and optional equipment Check condition of protective paint coat Inspect trailer s individual compone...

Page 71: ...onnected to tractor Start the tractor check all systems and conduct test run of trailer without load no load in load box It is recommended that the inspection is conducted by two people one of which should always remain in the tractor cab Test drive should be conducted according to the sequence shown below Connect the trailer to appropriate hitch on agricultural tractor Connect conduits of braking...

Page 72: ... 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 After completion of test drive check tightness of wheel nuts 4 2 HITCHING AND UNHITCHING THE TRAILER FROM TRACTOR ...

Page 73: ...ure that the hitching operation is completed and that drawbar eye is secured When the trailer is hitched to tractor the support must be folded as close as possible to the drawbar by maximally withdrawing the hydraulic cylinder piston When the support is completely folded set manifold lever in tractor to neutral position Turn off tractor engine Ensure that unauthorised persons do not have access to...

Page 74: ...portant First connect the yellow connector to yellow socket in the tractor and only then connect the red connector to the red socket in the tractor Once the 2nd conduit is connected the braking system will switch to normal mode of operation disconnection or interruption of the conduits causes the trailer s braking system control valve to automatically apply brakes Conduits are marked with coloured...

Page 75: ...e hydraulic support in a fixed position hydraulic support If the trailer is equipped with a mechanical support secure it with locking pin provided after adjusting the drawbar to correct height Turn off tractor engine Ensure that unauthorised persons do not have access to the tractor cab Disconnect all hydraulic support and tipping system lines from tractor Disconnect electric lead Disconnect pneum...

Page 76: ...unit requires experience in driving an agricultural tractor with a trailer While hitching the second trailer it is recommended to use the help of another person to guide the tractor driver DANGER When hitching there must be nobody between the trailers Person assisting in hitching the machines should stand outside the area of danger and be visible to the tractor driver at all times Hitching the sec...

Page 77: ...cured FIGURE 4 1 Coupling second trailer 1 hitch body 2 the second trailer drawbar 3 hitch pin 4 chain with locking cotter pin Insert drawbar pin and securing cotter pin Connect conduits of hydraulic system and pneumatic system and electrical leads according to instructions contained in section 4 2 Unhitching the second trailer Immobilise tractor and trailer with parking brake ...

Page 78: ...ly take place when trailer is placed on flat level surface and hitched to tractor If the trailer is equipped with tarpaulin cover it should be rolled ATTENTION When a tailgate is tightly closed that securing hooks must fully engage the rear gate securing pin 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 contamin...

Page 79: ...E 4 1 Guideline weights by volume of selected materials TYPE OF MATERIAL WEIGHT BY VOLUME kg m3 Root crops raw potatoes steamed crushed potatoes dried potatoes sugar beet roots fodder beet roots 700 820 850 950 130 150 560 720 500 700 Organic fertilisers old manure mature manure fresh manure compost dry peat 700 800 800 900 700 750 950 1 100 500 600 Mineral fertilisers ammonium sulphate potash sal...

Page 80: ...th hay in gathering trailer dry wilted wilted cut hay dry baled hay wilted baled hay stored dry hay stored cut hay clover lucerne wilted in the swath clover lucerne cut wilted on trailer clover lucerne wilted on gathering trailer dry stored clover cut dry stored clover dry straw in round bales damp straw in round bales cut damp straw in bulk trailer cut dry straw in bulk trailer cut dry straw in g...

Page 81: ...0 20 25 35 75 60 100 28 35 150 400 120 270 140 160 350 400 180 250 Concentrated feeds and mixed feeds stored chaff pressed cake milled dry feed mixed feeds mineral mixtures ground oats wet sugar beet pulp pressed sugar beet pulp dry sugar beet pulp bran bone meal pasture salt molasses silage pit silo hay silage tower silo 200 225 880 1 000 170 185 450 650 1 100 1 300 380 410 830 1 000 750 800 350 ...

Page 82: ...of work and having appropriate authorisation for operating equipment if required ATTENTION The trailer is also designed for transport of harvested crops and agricultural products volumetric or loose It is permissible to transport other loads timber building materials packed loads on the condition of securing the load box against damage abrasion of paint covering corrosion etc DANGER The load on th...

Page 83: ...of the trailer may exceed the permissible vehicle gross weight Some bulk loads e g building materials such as gravel or slag may cause more rapid damage to paintwork Loads of pieces or solid lumps Loads of pieces or solid lumps are generally hard materials of significantly greater dimensions than bulk loads stones coal bricks and ballast These materials without prior preparation of the load box ma...

Page 84: ...ght of load box extensions but particular attention should be paid to the trailer stability and the proper attachment and securing of the load Remember that higher loading has a negative effect on trailer stability Loads in packaging Loads transported in packaging boxes sacks must be laid closely side by side beginning from the front side of the trailer If it is essential to lay several layers par...

Page 85: ...transported only on condition of appropriate load preparation Materials must be tightly packed in plastic foil sacks plastic containers etc During transport packaging contents may not come into contact with load box Therefore ensure the appropriate tightness of containers It is impossible to describe all methods of loading due to the diversity of materials tools means of fixing and securing a load...

Page 86: ...d shoulder avoiding any risk to other road users and position reflective warning triangle according to traffic regulations When driving on public roads the 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 reflect...

Page 87: ...lume load over ruts ditches roadside slopes etc constitutes a great risk of overturning the trailer Exercise particular caution 4 6 UNLOADING The trailer is equipped with hydraulic tipping system and suitable frame structure and the load box allowing tipping to the rear Tipping of the load box is controlled from driver s cab using external tractor hydraulic system manifold Unloading of the trailer...

Page 88: ...ground Ensure that during unloading nobody is near tipped load box or load material pouring out Do NOT jerk the trailer forwards if load is bulky or reluctant to pour and does not unload Tipping may only be performed when trailer is hitched to tractor Do NOT move off or drive when load box is raised When closing the rear grain chute gate take particular care to avoid crushing fingers Rear load box...

Page 89: ...ly Careless operation of trailer may pose a danger to operators and bystanders can also cause damage to the machine 4 7 PROPER USE AND MAINTENANCE OF TYRES When working on the tyres chocks or other objects without sharp edges should be placed under the wheels of the trailer to prevent it from rolling Wheels can be taken off the trailer axle only when the trailer is not loaded Repair work on the wh...

Page 90: ...ld 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 release air from warm tyres to adjust the pressure or the tyres will be underinflated when temperatures return to normal valves should be protected with caps to avoid soiling Do not exceed the trai...

Page 91: ...SECTION 5 MAINTENANCE ...

Page 92: ...ich are not regarded as possible for the trailer operator to perform the user shall invalidate the warranty 5 2 MAINTENANCE OF BRAKES AND AXLES 5 2 1 PRELIMINARY INFORMATION Work connected with the repair change or regeneration of axle and brakes elements should be entrusted to specialist establishments having the appropriate technology and qualifications for this type of work The responsibilities...

Page 93: ...brake and parking brake should be engaged and released without great resistance and severity Check cylinder movement and correct return of piston to start position The help of a second person is required who shall engage trailer brake Check if axle elements are in place cotter pins in castellated nuts expansion rings etc Check hydraulic cylinders or pneumatic cylinders for tightness compare sectio...

Page 94: ...ough the inspection opening 2 see Figure 5 1 Check brake shoe linings for wear every 3 months if brakes overheat if brake cylinder piston stroke is significantly longer if there are unusual noises from the drum of wheel axle FIGURE 5 1 Checking brake shoe linings 1 wheel axle drum 2 brake shoe linings for wear inspection opening ...

Page 95: ...ward Place the wheel chocks under the wheel opposite to the lifted wheel Ensure that trailer shall not move during inspection Raise the wheel opposite to the side where chocks are placed The lifting jack should be placed under the axle between U bolts 2 figure 5 2 securing axle 1 to shock absorber leaf springs or as near as possible to leaf spring mounting Recommended fulcrum is marked with an arr...

Page 96: ...ring together with sealing ring should be replaced with new parts or cleaned and greased again During inspection of bearings ensure that possibly detected slackness comes from the bearing and not from the suspension system e g slackness of leaf spring pins etc TIP If hub cover is damaged or missing contamination and dampness enter the hub which causes significantly faster wear of bearings and hub ...

Page 97: ...provided in section 5 2 4 Adjustment of slackness of wheel axle bearing Take off hub cover 1 figure 5 3 Take out cotter pin 3 securing castellated nut 2 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 excessi...

Page 98: ...ustment of bearing slackness may only be conducted when the trailer is hitched to tractor and the load box is empty TIP If the wheel is dismounted bearing looseness is easy to check and adjust 5 2 6 MOUNTING AND DISMOUNTING WHEEL INSPECTION OF WHEEL NUT TIGHTENING Wheel dismounting Immobilise trailer with parking brake Place the wheel chocks under the wheel opposite to the dismounted wheel Ensure ...

Page 99: ...so that wheel rim tightly fits the hub Lower the trailer tighten nuts according to recommended torque and given sequence TIP Wheel nuts should be tightened using the torque of 450 Nm M22x1 5 nuts Tightening nuts Nuts should be tightened gradually diagonally in several stages until obtaining the required tightening torque using a torque spanner If a torque spanner is not available one may use an or...

Page 100: ...ct 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 The greatest precision is achieved using a torque spanner Before commencing work ensure that correct tightening torque value is set TABLE 5 1 Spanner arm WHEEL TIGHTENING TORQUE BODY WEIGHT F ARM LENGTH L Nm kg m 90 0 5 80 0 55 70 0 65 45...

Page 101: ...aded Checking should be done before travelling when tyres are not heated or after an extended period of parking TIP Tyre pressure values are specified in information decal placed on wheel or on upper frame above trailer wheel 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 co...

Page 102: ...ismantle expansion ring 3 Mark position of expander arm 1 with regard to the shaft 2 Dismantle arm and set it in the appropriate position in direction A if braking is too early in direction B if breaking is too late Fit the expansion ring The main brake system should be inspected annually and in case of need should be adjusted Adjustment should be conducted separately for each wheel Expander arm 1...

Page 103: ...5 5 Adjustment of axle mechanical brakes 1 expander arm 2 expander shaft 3 expansion ring During dismantling of cylinder fork remember or mark the original setting of the cylinder fork pin L1 distance front axle L2 distance rear axle The mounting position is selected by the Manufacturer and must not be changed see table 5 2 TABLE 5 2 Position of fork pin in expander arm PIN POSITION mm TYPE OF BRA...

Page 104: ...lever 5 U shaped clamp 6 shackle 7 clamping nuts Proper operation of the parking brake is dependent on the effectiveness of the front axle brake and the correct brake cable tension Replacing the parking brake cable Hitch trailer to tractor Park trailer and tractor on level surface Place securing chocks under one trailer wheel Fully unscrew the bolt of the brake crank mechanism 2 Loosen the nuts 7 ...

Page 105: ...the clamps may not be less than 15 mm Clamp jaws must be placed on the side of the load bearing cable see figure 5 7 The first clamp should be placed directly on the thimble FIGURE 5 7 Installation of steel cable clamps Install bolts and new securing cotter pins After the first loading of cable re check the condition of cable ends correct if necessary Adjustment of parking brake cable tension Hitc...

Page 106: ...e the adjustment make certain that the axle brake is correctly adjusted and is functioning properly Checking and or adjustment of parking brake every 12 months if needed 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 s...

Page 107: ...ems air pressure should amount to approx 5 8 bar In double conduit systems air pressure should amount to approx 8 bar 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 In the event of the appearance ...

Page 108: ...ess inspection attention should additionally be given to technical condition and degree of cleanness of the system components Contact of pneumatic conduit seals etc with oil grease petrol etc may cause damage and accelerate the ageing process Bent permanently deformed cut or worn conduits should be replaced Visual inspection of the system Conduct inspection of system at the same time as when check...

Page 109: ... direction 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 Filter elements are reusable and are not subject to change unless they are mechanically damaged Scope of maintenance activities Reduce pressure in supply conduit Reduction of pressure in conduit may be achieved by...

Page 110: ...lement and the filter body should be carefully cleaned and blown through with compressed air Assembly should be done in reverse order Cleaning the air filter filters every 3 months of use 5 3 4 DRAINING WATER FROM AIR TANK FIGURE 5 9 Draining water from air tank 1 drain valve 2 air tank Scope of maintenance activities Tilt drain valve stem 1 located in the lower part of tank 2 ...

Page 111: ... damaged see section 5 3 5 Draining water from air tank after each week of use 5 3 5 CLEANING THE DRAIN VALVE DANGER Release air from the air tank before dismantling drain valve Scope of maintenance activities Completely reduce pressure in air tank Reduction of pressure in tank is achieved by tilting the drain valve stem Unscrew valve Clean the valve blow it with compressed air Change copper seal ...

Page 112: ...n their designated sockets Before the winter it is recommended to preserve the seal with special preparations e g silicon grease for rubber elements Each time before hitching the machine inspect technical condition and cleanness of connectors and sockets in tractor If necessary clean or repair tractor sockets Inspecting trailer connections connection should be inspected every time before connectin...

Page 113: ...10 Installation of pneumatic conduit 1 pneumatic conduit 2 connecting nut 3 clamping ring 4 reinforcing sleeve 5 4 HYDRAULIC SYSTEM MAINTENANCE 5 4 1 PRELIMINARY INFORMATION Work connected with the repair change or regeneration of hydraulic system components hydraulic cylinders valves etc should be entrusted to specialist establishments having the appropriate technology and qualifications for this...

Page 114: ...hydraulic tailgate cylinders and possibly hydraulic brake cylinders and axle turning interlock cylinders Conduct test tipping of load box backwards Open and close the tailgate several times Press tractor brake pedal several times Only if the trailer is equipped with hydraulic brake system Check hydraulic cylinders and conduits for tightness If oil leak is detected on hydraulic cylinder body ascert...

Page 115: ...c Inspection of hydraulic couplers and sockets each time before connecting trailer to tractor or before connecting the second trailer 5 4 4 REPLACEMENT OF HYDRAULIC CONDUITS Rubber hydraulic conduits must be replaced every 4 years regardless of their technical condition This should be done in specialised workshops Replacement of hydraulic conduits every 4 years 5 5 MAINTENANCE OF ELECTRICAL SYSTEM...

Page 116: ... Check if the connection lead is reliable Check connection sockets in tractor and trailer Check completeness and technical condition of trailer lights Check completeness of all reflectors Check correct mounting of the slow moving vehicle warning sign holder Before driving on to public road check that the tractor is equipped with a warning reflective triangle Checking technical condition of electri...

Page 117: ...o dismantle whole lamp or trailer subassemblies TABLE 5 3 List of bulbs LAMP LAMP TYPE BULB QUANTITY IN 1 LAMP NUMBER OF LAMPS Rear left lamp assembly WE 549L R10W 1 pc P21W 2 pcs 1 Rear right lamp assembly WE 549P R10W 1 pc P21W 2 pcs 1 Licence plate light LT 120 C5W 1 pc 2 Front parking light LO 110PP C5W 1 pc 2 Rear clearance lamp 127 021 00 00 R5W 1 pc 2 ...

Page 118: ...Pronar T679 SECTION 5 5 28 5 6 TRAILER LUBRICATION FIGURE 5 11 Trailer s lubrication points ...

Page 119: ...ON 5 Pronar T679 5 29 FIGURE 5 12 Trailer s lubrication points TABLE 5 4 Trailer lubrication schedule ITEM LUBRICATION POINT NUMBER OF LUBRICATION POINTS TYPE OF GREASE FREQUENCY 1 Wheel hub bearing 4 A 24M ...

Page 120: ...of tipping ram and cylinder suspension 4 B 1M 6 Tipping cylinder ball bearing 1 B 3M 7 Parking brake mechanism 1 A 6M 8 Leaf spring sliding surface 4 A 3M 9 Leaf spring pin 4 A 3M 10 Rocker arm pin 2 B 3M 11 Shear type drawbar support cylinder bearing 2 A 3M 12 Shear type drawbar support pin 1 A 3M 13 Rear hitch mechanism 1 A 3M 14 Tipping pin 2 B 3M 15 Tailgate cylinder bearing 4 A 3M 16 Securing...

Page 121: ...iler 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 Before beginning to grease leaf springs remove contamination wash with water and leave to dry Do not use pressure washers which may cause moisture p...

Page 122: ... to the recommendations of the lubricant Manufacturer During trailer operation the user is obliged to observe lubrication instructions according to attached lubrication schedule 5 7 CONSUMABLES 5 7 1 HYDRAULIC OIL Always adhere to the principle that the oil in the trailer hydraulic system and in the tractor hydraulic system are of the same type In the event of application of different types of oil...

Page 123: ... to the respiratory tract A hazard only occurs when oil is strongly atomised oil vapour or in the case of fire during which toxic compounds may be released Oil fires should be quenched with the use of carbon dioxide foam or steam extinguishers Do not use water to quench oil fires 5 7 2 LUBRICANTS For heavily loaded parts it is recommended to apply lithium greases with addition of molybdenum disulp...

Page 124: ...emperature should not exceed 550 C Do not direct water stream directly at system and equipment elements of trailer i e control valve braking force regulator brake cylinders hydraulic cylinders pneumatic electric and hydraulic plugs lights electrical connections information and warning decals identification plates conduit connections spring leaves and lubrication points etc Great water jet pressure...

Page 125: ...ased Rubber elements should be maintained with the aid of special preparations after previous thorough washing After completed washing wait until the trailer is dry and then grease all inspection points according to recommendations Remove excess oil or grease with a dry cloth Observe environmental protection principles and wash trailer in a place designed for this purpose Washing and drying of the...

Page 126: ...ure should be increased to the appropriate value If trailer is equipped with tarpaulin cover it should be carefully washed and dried If possible clean tarpaulin cover should be stored unrolled otherwise carefully roll it without folding and breaking the material 5 10 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS Unless other tightening parameters are given during maintenance repair work apply app...

Page 127: ...ers ramps or other stable raised surfaces Particular care should be taken holding onto the trailer with one hand Work should be done with the help of another person The frame structure comprises front apex 1 centre apex 2 rear apex 3 as well as connecting pipe 4 figure 5 14 Assembly of frame and tarpaulin Attach front apex 1 to the front wall extension Attach rear apex 3 to the rear wall extension...

Page 128: ...ing straps 7 to holders 8 located on the left side of the trailer Tighten tarpaulin cover and secure with fastening straps 7 the front and rear part of the tarpaulin cover Disassembly of the frame and tarpaulin cover should be performed in reverse order DANGER Assembly and disassembly of the frame should be carried out with the use of appropriate platforms ladders or when standing on a ramp These ...

Page 129: ...sition of trailer drawbar is chosen depending on the type of agricultural tractor hitch to be used to hitch the trailer If possible we recommend adjusting the tractor hitch so that the trailer drawbar is positioned horizontally while driving on a flat terrain The transition from lower to the upper hitch and vice versa is achieved by reversing the drawbar 1 by 180 degrees and mounting it to the fac...

Page 130: ...the holes on the drawbar plate 1 relative to the faceplate 2 Figure 5 15 Drawbar positions 3 or 4 can also be adjusted by changing their position relative to the drawbar faceplate 1 Scope of activities Immobilise trailer with parking brake Place chocks under trailer wheels Dismantle drawbar 1 from faceplate 2 by removing fixing bolts 5 If necessary rotate the drawbar 1 by 180 degrees and set it in...

Page 131: ...bar eye in two positions 5 13 TROUBLESHOOTING TABLE 5 8 Troubleshooting FAULT CAUSE REMEDY Brake system pneumatic conduits not connected Connect brake conduits applies to pneumatic systems Applied parking brake Release parking brake Damaged pneumatic system connection conduits Replace Leaking connections Tighten replace washers or seal sets replace conduits Problem with moving off Control valve or...

Page 132: ...aulic oil viscosity Check oil quality make sure that the oil in both machines is of the same type If necessary change oil in tractor or in trailer Insufficient tractor hydraulic pump output tractor hydraulic pump is damaged Check tractor hydraulic pump Damaged or contaminated cylinder Check cylinder piston rod bending corrosion check cylinder for tightness cylinder piston rod seal if necessary rep...

Page 133: ...NOTES ...

Page 134: ... ...

Page 135: ...TL 2 Wheel 445 65 R22 5reg 170F TL 3 Wheel 445 65 R22 5 BT41 168K TL 3 Wheel 445 65 R22 5 HTR 168K TL 3 Wheel 500 60 R22 5 16PR 159A8 4 Wheel 550 45 R22 5 16PR 159A8 5 Wheel 560 45 22 5 152D TL 5 1 wheel disc 11 75x22 5 ET 30 2 wheel disc 13 00x22 5 ET 0 3 wheel disc 14 00x22 5 ET 0 4 wheel disc 16 00x22 5 ET 30 5 wheel disc 16 00x22 5 ET 50 ...

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PRONAR T679, Operator'S Manual

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