PRONAR T679/5 Operator's Manual
  1. Manuals
  2. Brands
  3. PRONAR Manuals
  4. Farm Equipment
  5. T679/5
  6. Operator's manual

PRONAR T679/5 Operator's Manual

Agricultural trailer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
TRANSLATION OF THE ORIGINAL COPY OF THE MANUAL
EDITION 2A-04-2017
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
Phone:
fax:
OPERATOR`S MANUAL
AGRICULTURAL TRAILER
PRONAR T679/5
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO. 537N-00000000-05-UM
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the T679/5 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for PRONAR T679/5

Summary of Contents for PRONAR T679/5

  • Page 1 PRONAR Sp. z o.o. 17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE 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...
  • Page 3 The machine is designed to meet obligatory standards, documents and legal regulations currently in force. The manual describes the basic safety rules and operation of agricultural trailer Pronar T679/5. If the information stated in the Operator's Manual needs clarification then the user should refer for assistance to the sale point where the machine was purchased or to the Manufacturer.
  • Page 4 SYMBOLS APPEARING IN THIS OPERATOR'S MANUAL Information, descriptions of danger and precautions and also recommendations and prohibitions associated with user safety instructions are marked: and also preceded by the word "DANGER”. Failure to observe the instructions may endanger the machine operator's or other person's health or life. Particularly important information and instructions, the observance of which is essential, are distinguished in the text by the sign: and also preceded by the word "ATTENTION".
  • Page 5 DIRECTIONS USED IN THIS OPERATOR'S MANUAL Left side – side to the left hand of the operator facing in the direction of machine's forward travel. Right side – side to the right hand of the operator facing in the direction of machine's forward travel.

  • Page 7: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS 1 BASIC INFORMATION IDENTIFICATION 1.1.1 TRAILER IDENTIFICATION 1.1.2 AXLE IDENTIFICATION 1.1.3 LIST OF SERIAL NUMBERS PROPER USE EQUIPMENT TERMS & CONDITIONS OF WARRANTY 1.10 TRANSPORT 1.11 1.5.1 TRANSPORT ON VEHICLE 1.11 1.5.2 INDEPENDENT TRANSPORT BY THE USER. 1.13 ENVIRONMENTAL HAZARDS 1.14...
  • Page 8 3.2.1 CHASSIS 3.2.2 LOAD BOX 3.2.3 MAIN BRAKE 3.2.4 HYDRAULIC TIPPER SYSTEM 3.2.5 TAILGATE HYDRAULIC SYSTEM 3.2.6 PARKING BRAKE 3.10 3.2.7 ELECTRIC LIGHTING SYSTEM 3.11 4 CORRECT USE PREPARING THE TRAILER FOR WORK 4.1.1 PRELIMINARY INFORMATION 4.1.2 HAND-OVER AND INSPECTION OF THE MACHINE AFTER DELIVERY 4.1.3 PREPARING THE TRAILER FOR THE FIRST USE, TEST RUN OF THE TRAILER...
  • Page 9 5.2.3 ADJUSTMENT OF AXLE BEARING SLACKNESS 5.2.4 MOUNTING AND DISMOUNTING WHEEL, INSPECTION OF WHEEL NUT TIGHTENING 5.2.5 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS 5.2.6 CHECKING THICKNESS OF BRAKE SHOE LININGS 5.10 5.2.7 MECHANICAL BRAKES ADJUSTMENT 5.11 5.2.8 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF CABLE TENSION.
  • Page 10 5.10 ADJUSTMENT OF DRAWBAR POSITION 5.35 5.11 ADJUSTMENT OF TAILGATE POSITION 5.37 5.12 TROUBLESHOOTING 5.39 5.12.1 TROUBLESHOOTING 5.39...

  • Page 11: Basic Information

    SECTION BASIC INFORMATION...

  • Page 12: Identification

    (1) data plate, (2) example of VIN number Pronar T679/5 agricultural trailer is marked with the data plate (1) and vehicle identification number (VIN) (2). The serial number and data plate are located on the right side of the frame front beam –...

  • Page 13: Axle Identification

    SECTION 1 PRONAR T679/5 TABLE 1.1 Markings on data plate ITEM MARKING General description and purpose Symbol /Machine type Year of manufacture Seventeen digit vehicle identification number (VIN) Official certificate number Machine tare weight Maximum gross weight Carrying capacity Permissible hitching system loading...

  • Page 14: List Of Serial Numbers

    PRONAR T679/5 SECTION 1 FIGURE 1.2 Location of the axle data plate (1) axle, (2) data plate 1.1.3 LIST OF SERIAL NUMBERS TABLE 1.2 List of serial numbers AXLE SERIAL NUMBER 1.2 PROPER USE The trailer is designed for transporting and unloading harvested crops and agricultural products as well as heavy materials such as: debris, stones, rubble, gravel, used during construction work, earthwork, demolition, on the farm and on public roads.

  • Page 15: Length

    SECTION 1 PRONAR T679/5 TABLE 1.3 Recommended types of pallets LENGTH WIDTH HEIGHT PALLET NAME - TYPE [mm] [mm] [mm] EURO pallet – standard 1,200 EUR-pallet – 1/2 EUR pallet – extended 1,200 1,200 ISO pallet 1,200 1,000 The above-mentioned loads 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.
  • Page 16 PRONAR T679/5 SECTION 1 • 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, •...
  • Page 17 SECTION 1 PRONAR T679/5 TABLE 1.4 Agricultural tractor's requirements CONTENTS UNIT REQUIREMENTS Brake system connection sockets Single conduit pneumatic system according to A DIN 74 294 Double conduit pneumatic system according to ISO 1728 Hydraulic system according to ISO 7421-1...

  • Page 18: Equipment

    PRONAR T679/5 SECTION 1 TABLE 1.5 Requirements for second trailer CONTENTS UNIT REQUIREMENTS Maximum gross weight 10,350 Brake system - connectors Hydraulic system according to ISO 7421-1 Single conduit pneumatic system according to A DIN 74 294 Double conduit pneumatic system...
  • Page 19 SECTION 1 PRONAR T679/5 TABLE 1.6 Equipment EQUIPMENT • OPERATOR'S MANUAL, WARRANTY BOOK • Adjustable drawbar Rotating drawbar eye ∅50 • Fixed drawbar eye ∅40 • • Load box made of wear resistant steel plates • Transport lugs for securing load •...

  • Page 20: Terms & Conditions Of Warranty

    PRONAR Sp. z o.o. Narew guarantees the reliable operation of the machine when it is used according to its intended purpose as described in the OPERATOR'S MANUAL. The repair period is specified in the WARRANTY BOOK.

  • Page 21: Transport

    SECTION 1 PRONAR T679/5 • mechanical damage which is the user's fault, road accidents, • inappropriate use, adjustment or maintenance, use of the machine for purposes other than those for which it is intended, • use of damaged machine, • repairs carried out by unauthorised persons, repairs carried out improperly, •...
  • Page 22 PRONAR T679/5 SECTION 1 that are not sufficiently strong to withstand operations of this type. Lifting equipment used for transporting the machine must be attached only to the fixed structural elements of the machine. These elements are, first of all: frame and transport lugs.

  • Page 23: Independent Transport By The User

    SECTION 1 PRONAR T679/5 the carrying vehicle design, speed of travel and other conditions. For this reason it is impossible to define the securing plan precisely. A correctly secured machine does not change its position with regard to the transport in vehicle.

  • Page 24: Environmental Hazards

    PRONAR T679/5 SECTION 1 ATTENTION Before transporting independently, the tractor driver must carefully read this Operator's Manual and observe its recommendations. 1.6 ENVIRONMENTAL HAZARDS A hydraulic oil leak constitutes a direct threat to the natural environment owing to its limited biodegradability.

  • Page 25: Withdrawal From Use

    SECTION 1 PRONAR T679/5 hydraulic oil): 13 01 10. Detailed information concerning hydraulic oil may be found on the product's Material Safety Data Sheet. The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil. 1.7 WITHDRAWAL FROM USE...
  • Page 26 PRONAR T679/5 SECTION 1 1.16...

  • Page 27: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 28: Safety Information

    PRONAR T679/5 SECTION 2 2.1 SAFETY INFORMATION 2.1.1 BASIC SAFETY RULES • Before using the trailer, the user must carefully read this Operator's Manual. When operating machine, operator must comply with recommendations. The trailer may only be used and operated by persons qualified to drive agricultural tractors and trained in the use of the machine.
  • Page 29 SECTION 2 PRONAR T679/5 • In the event of failure of the braking system, do not use the trailer until the malfunction is corrected. • The trailer unhitched from tractor must be immobilised with parking brake. If the machine is positioned on a slope or elevation it shall be additionally secured against moving by placing chocks or other objects without sharp edges under the trailer's wheels.
  • Page 30 PRONAR T679/5 SECTION 2 • Keep a safe distance during loading and unloading. Do not allow anyone to approach the place where works are carried out. • Load should be protected against moving by means of belts, chains and tapes or other securing measures.
  • Page 31 SECTION 2 PRONAR T679/5 • 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. • Inspect tightness of wheel nuts after the first use of the trailer, every 2 - 3 hours during the first month of work and then every 30 hours of use (travel).

  • Page 32: Driving On Public Roads

    PRONAR T679/5 SECTION 2 • The trailer must not be supported using fragile elements (bricks or concrete blocks). • After completing work associated with lubrication, remove excess oil or grease. • Use appropriate tools, close-fitting protective clothing and gloves when operating, maintaining or cleaning the machine.

  • Page 33: Description Of Residual Risk

    2.1.3 DESCRIPTION OF RESIDUAL RISK Pronar Sp. z o. o. in Narew has made every effort to eliminate the risk of accidents. There is, however, a certain residual risk, which could lead to an accident, and this is connected mainly with the actions described below: •...

  • Page 34: Information And Warning Decals

    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 with the appropriate safety signs.
  • Page 35 SECTION 2 PRONAR T679/5 ITEM SYMBOL MEANING Before beginning servicing or repairs, turn off engine and remove key from ignition 70N-00000005 Caution! Danger of electric shock. Keep a safe distance from electric power lines during unloading. 58N-0000020 Regularly check if the nuts...
  • Page 36 PRONAR T679/5 SECTION 2 ITEM SYMBOL MEANING Danger of crushing Maintain a safe distance during opening and closing the tailgate. 96N-00000006 Machine type. 537N-00000006 2.10...
  • Page 37 SECTION 2 PRONAR T679/5 FIGURE 2.2 Locations of information and warning decals. 2.11...
  • Page 38 PRONAR T679/5 SECTION 2 2.12...

  • Page 39: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 40: Technical Specification

    PRONAR T679/5 SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 Basic technical data of the standard machine version CONTENTS UNIT T679/5 Dimensions Total length 5 653 Total width 2 550 Total height 1 738 Load box dimensions Length 4 000 Width...

  • Page 41: Trailer Design

    SECTION 3 PRONAR T679/5 3.2 TRAILER DESIGN 3.2.1 CHASSIS Trailer chassis consists of subassemblies indicated in figure (3.1). Lower frame (1) is a structure welded from steel sections. The main support elements of the frame are two longitudinal members connected with crossbars. In the middle section there are sockets (5) used for mounting the tipping hydraulic cylinder.
  • Page 42 PRONAR T679/5 SECTION 3 FIGURE 3.1 Trailer chassis (1) lower frame, (2) drawbar, (3) mechanical support, (4) wheel chocks, (5) tipping cylinder socket, (6) load box support, (7) lights support beam, (8) axle, (9) drawbar hitching eye, (10) parking brake...

  • Page 43: Load Box

    SECTION 3 PRONAR T679/5 3.2.2 LOAD BOX FIGURE 3.2 Load box (1) load box, (2) hydraulic tailgate, (3) front canopy, (4) hinged-opening tailgate (optional equipment), (5) transport lug Trailer load box (1) has a monocoque construction. It is madeof steel plates and shapes - figure (3.2).

  • Page 44: Main Brake

    Canopy (3), serving as a protective element, is installed in the front part of the load box. PRONAR offers the load boxes and tailgates made of three different grades of steel in order to meet the customer's expectations. Load box code reflecting the steel grade is stamped on the rear left stake, while tailgate code is stamped on the left tailgate profile.
  • Page 45 SECTION 3 PRONAR T679/5 Depending on the version of the trailer, the machine is equipped with one of two types of service brake: double conduit pneumatic system - figure (3.3). hydraulic braking system, figure - figure (3.4). The service brake (pneumatic or hydraulic) is activated from the driver's cab by pressing the tractor brake pedal.
  • Page 46 PRONAR T679/5 SECTION 3 TABLE 3.2 List of symbols used in the schemes SYMBOL OPIS Pneumatic connection, plug Pneumatic connection, socket Drainage valve Main control valve Relay valve Automatic braking force regulator Manual braking force regulator Wire connection Air tank...

  • Page 47: Hydraulic Tipper System

    SECTION 3 PRONAR T679/5 of the brakes. The three-band braking force regulator - figure (3.5) used in pneumatic systems adjusts the braking force depending on the setting. Switching to the appropriate operating mode is done manually by the machine operator before starting the journey using the lever (4).
  • Page 48 PRONAR T679/5 SECTION 3 FIGURE 3.6 Hydraulic tipping system construction and diagram (1) telescopic cylinder, (2) three-way valve, (3) cut-off valve, (4) quick coupler, (5) socket, (6) control cable, (7) guide roller, (8), (9) information decal The trailer system consists of two independent circuits: •...

  • Page 49: Tailgate Hydraulic System

    SECTION 3 PRONAR T679/5 Three-way valve (2) – figure (3.6) 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 50: Parking Brake

    PRONAR T679/5 SECTION 3 supplied with oil from the tractor's hydraulic system. Hydraulic oil manifold of the tractor's external hydraulic system is used to control the tailgate rising. 3.2.6 PARKING BRAKE FIGURE 3.8 Parking brake design (1) brake mechanism, (2) expander lever, (3) brake cable The parking brake is used to immobilise and prevent the trailer from moving while standing motionless.

  • Page 51: Electric Lighting System

    SECTION 3 PRONAR T679/5 3.2.7 ELECTRIC LIGHTING SYSTEM FIGURE 3.9 Connection socket (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 Ground Power supply +12V Left indicator...
  • Page 52 PRONAR T679/5 SECTION 3 FIGURE 3.10 Arrangement of electrical system components (1) front parking light, white, (2) 7-pin connection socket, (3) rear clearance light, (4) rear lamp assembly, (5) license plate light The trailer's electrical system is designed for supplying from direct current source of 12 V.

  • Page 53: Correct Use

    SECTION CORRECT USE...

  • Page 54: Preparing The Trailer For Work

    PRONAR T679/5 SECTION 4 4.1 PREPARING THE TRAILER FOR WORK 4.1.1 PRELIMINARY INFORMATION The trailer is supplied to the user completely assembled and does not require additional mounting operations of machine sub-assemblies. The manufacturer guarantees that the machine is fully operational and has been checked according to quality control procedures and is ready for use.

  • Page 55: Preparing The Trailer For The First Use, Test Run

    SECTION 4 PRONAR T679/5 ATTENTION The seller is obliged to conduct the first start up of the trailer in the presence of the user. The user trained by the seller is not released from the obligation to read this Operator's Manual carefully.

  • Page 56: Preparing The Trailer For Normal Use

    PRONAR T679/5 SECTION 4 • Switch on individual lights, check correct operation of electrical system. • Release tractor's parking brake. Perform test drive. Check the trailer's braking efficiency during driving. • Raise the load box to the maximum height and then lower it to the initial position (transport position).

  • Page 57: Hitching And Unhitching The Trailer

    SECTION 4 PRONAR T679/5 Scope of inspection activities • Visually inspect if the tyres are properly inflated. In case of doubt, carefully check tyre pressure. • Check technical condition of drawbar eye. • Check correctness of electrical system operation. • Check technical condition and completeness of shields and protection devices.
  • Page 58 PRONAR T679/5 SECTION 4 If the trailer is equipped with hydraulic braking system, insert hydraulic conduit plug into proper braking system socket in the agricultural tractor. Connect the electrical lighting system lead. Check and, if necessary, protect conduits against rubbing or other mechanical damage.

  • Page 59: Hitching And Unhitching The Second Trailer

    SECTION 4 PRONAR T679/5 Unhitching In order to unhitch the trailer from the tractor follow these steps.l Immobilise tractor with parking brake, turn off tractor engine Ensure that unauthorised persons do not have access to the tractor cab. Place chocks...
  • Page 60 PRONAR T679/5 SECTION 4 Hitching the second trailer Position the tractor with the first trailer hitched directly in front of the second trailer's drawbar. Immobilise second trailer with parking brake. Remove pin from the rear hitch of the first trailer.

  • Page 61: Loading And Securing Load

    SECTION 4 PRONAR T679/5 If the trailer is fitted with automatic rear hitch, lift the pin by the handle. Unlock the pin of the hitch of the first trailer. Remove the pin and drive tractor away. DANGER Only double axle trailers may be hitched to the trailer.

  • Page 62: Securing Load

    PRONAR T679/5 SECTION 4 distance during loading and unloading. Do not allow anyone to approach the place where works are carried out. Load should be uniformly distributed along the length and width of the load box 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 box.
  • Page 63 SECTION 4 PRONAR T679/5 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. Prior to moving off, check if the tailgate's protection is closed properly.
  • Page 64 PRONAR T679/5 SECTION 4 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m sugar beet - roots 560 - 720 fodder beet - roots 500 - 700 Mineral fertilisers: ammonium sulphate 800 - 850 potash salt 1,100 – 1,200 super phosphate 850 – 1,440 basic slag phosphate 2,000 –...

  • Page 65: Transporting Loads

    SECTION 4 PRONAR T679/5 WEIGHT BY VOLUME TYPE OF MATERIAL kg/m barley 600 - 750 clover 700 - 800 grass 360 - 500 maize 700 - 850 wheat 720 - 830 oil seed rape 600 - 750 linseed 640 - 750...
  • Page 66 PRONAR T679/5 SECTION 4 carrying capacity must not be exceeded as this can damage the trailer and pose a risk to the operator or other road users. • Permissible design speed and maximum speed allowed by road traffic law must not be exceeded.

  • Page 67: Unloading

    SECTION 4 PRONAR T679/5 • Speed must be sufficiently reduced before making a turn or driving on an uneven road or a slope. • When driving, avoid sharp turns especially on slopes. • When driving on public roads, the hydraulic tailgate and hinged-opening tailgate must be closed and secured.
  • Page 68 PRONAR T679/5 SECTION 4 Unloading of the trailer is performed in the following sequence: tractor and trailer must be placed to drive forwards on flat and hard ground, immobilise tractor with parking brake, FIGURE 4.2 Unloading load box with hydraulic tailgate (1) hydraulic tailgate, (2) load box, (3) telescopic cylinder open hydraulic tailgate (1) (standard) - Figure (4.2), using the cylinder by...
  • Page 69 SECTION 4 PRONAR T679/5 close the hydraulic tailgate (1) by actuating a suitable hydraulic circuit from the tractor - figure (4.2), before moving off make sure that the hydraulic tailgate or hinged hatch is properly locked. FIGURE 4.3 Unloading load box with hinged-opening tailgate...

  • Page 70: Proper Use And Maintenance Of Tyres

    PRONAR T679/5 SECTION 4 ATTENTION Do NOT jerk the trailer forwards if load is bulky or reluctant to pour and does not unload. Do NOT move off or drive when load box is raised. Do not unload the trailer the second trailer is connected.
  • Page 71 SECTION 4 PRONAR T679/5 • When the trailer is operated all day, stop working for a minimum of one hour in the afternoon. • Take a 30 minute-break for cooling tyres after driving 75 km or after 150 minutes of continuous travel, depending on which occurs first.
  • Page 72 PRONAR T679/5 SECTION 4 4.20...

  • Page 73: Maintenance

    SECTION MAINTENANCE...

  • Page 74: Preliminary Information

    PRONAR T679/5 SECTION 5 5.1 PRELIMINARY INFORMATION When using the trailer, regular inspections of its technical condition and the performance of maintenance procedures are essential, which keep the machine in good technical condition. In connection with this the user of the trailer is obliged to perform all the maintenance and adjustment procedures defined by the Manufacturer.

  • Page 75: Checking Wheel Axle Bearings For Slackness

    SECTION 5 PRONAR T679/5 Procedures connected with: • changing grease in axle bearings, • changing bearings, hub seals, • replacement of brake shoes, • other axle repairs, may be performed by specialized vehicle service stations. 5.2.2 CHECKING WHEEL AXLE BEARINGS FOR SLACKNESS FIGURE 5.1...
  • Page 76 PRONAR T679/5 SECTION 5 Raise the wheel (opposite to the side where chocks are placed). Lifting jack should be positioned in the place indicated by the arrow in figure (5.1). Lifting jack must be suitable for the weight of the trailer.

  • Page 77: Adjustment Of Axle Bearing Slackness

    SECTION 5 PRONAR T679/5 INSPECTION Checking wheel axle bearings for slackness: • after travelling the first 1,000 km, • after intensive use of trailer, • every six months use or every 25,000 km. Check condition of hub cover, if necessary replace with a new cover. Inspection of bearing slackness may only be conducted when the trailer is hitched to tractor.
  • Page 78 PRONAR T679/5 SECTION 5 Tighten castellated nut in order to eliminate looseness. Wheel should rotate with insignificant resistance. Undo nut (not less than 1/3 rotation) to align the nearest thread groove with the opening in wheel axle pin. Wheel should rotate without excessive resistance.

  • Page 79: Mounting And Dismounting Wheel, Inspection Of

    SECTION 5 PRONAR T679/5 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).
  • Page 80 PRONAR T679/5 SECTION 5 Tightening 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 repeated after each removal of a wheel from the wheel axle.

  • Page 81: Checking Air Pressure In Tyres, Evaluating

    SECTION 5 PRONAR T679/5 5.2.5 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL CONDITION OF TYRES AND STEEL WHEELS Tyre pressure values are specified in information decal, placed on wheel or on the frame above machine wheel. Tyre pressure should be checked each time after changing spare wheel and not less than every month.

  • Page 82: Checking Thickness Of Brake Shoe Linings

    PRONAR T679/5 SECTION 5 5.2.6 CHECKING THICKNESS OF BRAKE SHOE LININGS FIGURE 5.5 Checking brake shoe linings (1) brake drum, (2) disc, (3) inspection openings, (G) thickness of brake shoe lining Minimum thickness of brake shoe linings is 5 mm.

  • Page 83: Mechanical Brakes Adjustment

    SECTION 5 PRONAR T679/5 5.2.7 MECHANICAL BRAKES ADJUSTMENT Preliminary information Considerable wear of brake shoe linings results in increased brake cylinder piston stroke and worse braking efficiency. During braking, the brake cylinder rod stroke should be within the specified operating range and the angle between brake cylinder rod and expander arm should be about 90°...
  • Page 84 PRONAR T679/5 SECTION 5 operating angle, the cylinder piston fork (6) must be installed on the expander arm (1) in such a manner as to ensure that the operating angle at full braking is about 90°. FIGURE 5.7 Design of hydraulic wheel axle brake (1) expander arm, (2) expander shaft, (3) fork pin, (4) brake cylinder, (5) cylinder rod, (6) cylinder fork Correct brake cylinder piston stroke should be within the range of 25 –...
  • Page 85 SECTION 5 PRONAR T679/5 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. TABLE 5.1 Operating data of pneumatic cylinder NOMINAL CYLINDER STROKE MINIMUM CYLINDER...
  • Page 86 PRONAR T679/5 SECTION 5 Remember or mark the original position (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. FIGURE 5.8 Principle of brake adjustment...
  • Page 87 SECTION 5 PRONAR T679/5 a new one. When installing the brake cylinder, maintain its original position with regard to bracket (7). Rotate adjustment bolt (4) to align the marked expander arm opening with the brake cylinder fork opening. During adjustment, membrane (2) must rest on the rear wall of the brake cylinder –...

  • Page 88: Replacement Of Parking Brake Cable And Adjustment Of Cable Tension

    PRONAR T679/5 SECTION 5 FIGURE 5.9 Principle of brake adjustment (1) brake cylinder rod, (3) expander arm, (4) cylinder fork, (5) position of fork pin, (6) brake cylinder bracket, (A) mark on the brake cylinder at brake release position, (B) mark on the brake cylinder at full...
  • Page 89 SECTION 5 PRONAR T679/5 Dismantle shackles (4) and cable rollers (6). Unlock and remove crank mechanism pin (1). FIGURE 5.10 Parking brake (1) brake mechanism, (2) expander arm, (3) cable, (4) shackle, (5) U-shaped clamp, (6) cable roller Undo cable securing nuts (5).
  • Page 90 PRONAR T679/5 SECTION 5 Loosen all nuts (2) – figure (5.11), of handbrake cable clamps on the brake mechanism side. Tighten cable and tighten clamps. ATTENTION Parking brake cable clamps must be installed as shown in figure (5.11), i.e. clamp bracket (1) must be installed on the side of the shorter brake cable section.

  • Page 91: Pneumatic System Maintenance

    SECTION 5 PRONAR T679/5 INSPECTION • Every 12 months. Adjustment of parking brake cable tension should be conducted in the event of: • stretching of cable, • loosening of parking brake cable clamps • after adjustment of axle brakes, • after repairs of axle brake system, •...

  • Page 92: Checking Tightness

    PRONAR T679/5 SECTION 5 • cleaning and maintaining pneumatic conduit connections, 5.3.2 CHECKING TIGHTNESS Checking air tightness of pneumatic system 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 and trailer with parking brake.

  • Page 93: Inspection Of The System

    SECTION 5 PRONAR T679/5 5.3.3 INSPECTION OF THE SYSTEM INSPECTION • Each time during tightness inspection. During tightness 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.
  • Page 94 PRONAR T679/5 SECTION 5 Pressure in conduit can be reduced by pressing the head of the pneumatic connection until resistance is felt. Remove securing slide (1). INSPECTION • Every 3 months. Hold the filter cover (2) with the other hand. After removing slide lock, the cover is pushed off by the spring located in the filter housing.

  • Page 95: Draining Water From Air Tank

    SECTION 5 PRONAR T679/5 5.4.1 DRAINING WATER FROM AIR TANK Required maintenance activities Tilt drain valve stem (2) located in the lower part of tank (1). The compressed air in the tank causes the removal of water to the exterior.

  • Page 96: Cleaning And Maintaining Pneumatic Conduit

    PRONAR T679/5 SECTION 5 INSPECTION • Every 12 months (before winter). 5.4.3 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS AND PNEUMATIC SOCKETS DANGER Unreliable and dirty trailer connections may cause unreliability and faulty functioning of brake system. Connection with damaged body should be replaced. In event of damage to cover or seal, change these elements for new reliable elements.

  • Page 97: Hydraulic System Maintenance

    SECTION 5 PRONAR T679/5 5.5 HYDRAULIC SYSTEM MAINTENANCE 5.5.1 PRELIMINARY INFORMATION Work connected with the repair, replacement or regeneration of hydraulic system components should be entrusted to specialist establishments which have the appropriate technology and qualifications for this type of work.

  • Page 98: Checking Technical Condition Of Hydraulic

    PRONAR T679/5 SECTION 5 Switch off the tractor's engine and check all hydraulic cylinders for tightness. If oil is found on hydraulic cylinder body, check origin of leak. Inspect hydraulic seals when hydraulic cylinder is completely extended. Minimum leaks are permissible with symptoms of "sweating".

  • Page 99: Lubrication

    SECTION 5 PRONAR T679/5 5.6 LUBRICATION Trailer lubrication should be performed with the aid of a manually or foot operated grease gun, filled recommended grease. Before commencing work insofar as is possible remove old grease and other contamination. Remove and wipe off excess oil or grease.
  • Page 100 PRONAR T679/5 SECTION 5 ITEM LUBRICATION POINT Automatic rear hitch Tailgate slide rollers Axle expander shaft Swing hinge of hinged-opening tailgate Lubrication periods – M months, D – days – non-standard equipment 5.28...
  • Page 101 SECTION 5 PRONAR T679/5 FIGURE 5.14 Trailer's lubrication points 5.29...

  • Page 102: Consumables

    PRONAR T679/5 SECTION 5 TABLE 5.4 Recommended lubricants MARKING ACC. TO DESCRIPTION TAB. (5.3) Machine general-purpose grease (lithium, lime). Grease for heavily loaded elements with addition of MoS or graphite. Anti-corrosion and penetrating preparation in aerosol. Empty grease or oil containers should be disposed of according to the recommendations of the lubricant Manufacturer.
  • Page 103 SECTION 5 PRONAR T679/5 TABLE 5.5 L-HL 32 Lotos hydraulic oil characteristics ITEM NAME UNIT VALUE ISO 3448VG viscosity classification Kinematic viscosity at 40°C 28.8 – 35.2 ISO 6743/99 quality classification DIN 51502 quality classification Flash-point Because of its composition the oil applied is not classified as a dangerous substance, however long-term action on the skin or eyes may cause irritation.

  • Page 104: Trailer Cleaning

    PRONAR T679/5 SECTION 5 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.

  • Page 105: Storage

    SECTION 5 PRONAR T679/5 • 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.

  • Page 106: Inspection Of Tightening Torque Of Nut And Bolt Connections

    PRONAR T679/5 SECTION 5 • 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.
  • Page 107 SECTION 5 PRONAR T679/5 TABLE 5.6 Tightening torque for nut and bolt connections 10.9 METRIC THREAD Md [Nm] 1 050 1 150 1 650 1 050 1 450 2 100 (1) – resistance class according to DIN ISO 898 standard Hydraulic lines should be tightened using torque of 50 –...
  • Page 108 PRONAR T679/5 SECTION 5 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 faceplate (2). The drawbar height is controlled through the appropriate use of the holes on the drawbar plate (1) relative to the faceplate (2) - figure (5.16).
  • Page 109 SECTION 5 PRONAR T679/5 If necessary, rotate the drawbar (1) by 180 degrees and set it in a new position. Tighten the bolts (5) using the correct torque according to table (5.7). The design of the drawbar (1), and the faceplate (2) allows the three settings (I) (II) (III).
  • Page 110 PRONAR T679/5 SECTION 5 The tailgate position should be checked during trailer operation. If the tailgate position is incorrect, a gap will occur between the side edge of the tailgate and the rear surface of the load box. If both surfaces do not adhere precisely to each other, the load box is not tight and scattering of bulk materials may occur.
  • Page 111 SECTION 5 PRONAR T679/5 5.12 TROUBLESHOOTING 5.12.1 TROUBLESHOOTING FAULT CAUSE REMEDY Brake system conduits not Connect brake conduits (applies connected to pneumatic systems) Applied parking brake Release parking brake. Damaged pneumatic Replace. Problem with moving off system connection conduits Tighten, replace washers or seal Leaking connections sets, replace conduits.
  • Page 112 PRONAR T679/5 SECTION 5 FAULT CAUSE REMEDY Check oil quality, make sure that Improper hydraulic oil the oil in both machines is of the viscosity same type. If necessary change oil in tractor or in trailer. Insufficient tractor hydraulic pump output, damaged Check tractor hydraulic pump.
  • Page 113 SECTION 5 PRONAR T679/5 FAULT CAUSE REMEDY Damaged suspension Check suspension system for system, broken leaf spring. looseness, check leaf springs. Replace damaged or worn Damaged brake system, elements. Worn tyre tread. blocking of brakes, incorrectly adjusted brake Check brake system for system.
  • Page 114 PRONAR T679/5 SECTION 5 5.42...
  • Page 115 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
  • Page 116 …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...

Table of Contents