Mandam BTH-D Instruction Manual

Hydraulic disc harrow with drawbar

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MANDAM Sp. z o.o.
ul. Toruńska 14 44-100 Gliwice, Poland
e-mail: mandam@mandam.com.pl
Tel.: 032 232 26 60 Fax: 032 232 58 85
NIP (VAT no.): 648 000 16 74 REGON (Registration no.): P – 008173131
INSTRUCTION MANUAL
HYDRAULIC DISC HARROW
with BTH-D drawbar
Issue II
Gliwice 2022
1

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Summary of Contents for Mandam BTH-D

  • Page 1 MANDAM Sp. z o.o. ul. Toruńska 14 44-100 Gliwice, Poland e-mail: mandam@mandam.com.pl Tel.: 032 232 26 60 Fax: 032 232 58 85 NIP (VAT no.): 648 000 16 74 REGON (Registration no.): P – 008173131 INSTRUCTION MANUAL HYDRAULIC DISC HARROW...
  • Page 2 Directive of the European Union no. 2006/42/EC of 17 May 2006 MANDAM Sp. z o.o. ul. Toruńska 14 44-100 Gliwice hereby declares at its sole responsibility that the following machine: BTH disc harrow with BTH-D drawbar type/model: ……………………………... year of manufacture: ……………………. serial number: …………………………… VIN: ………………………………………...
  • Page 3: Table Of Contents

    2.1. Design of the BTH disc harrow with BTH-D drawbar ............8 2.2. Intended use of the BTH disc harrow with BTH-D draw ........... 9 General safety information ..................... 10 3.1. Proper hitching and unhitching of the harrow with/from the tractor ......11 3.2.
  • Page 4: Introduction

    1. Introduction Congratulations on your purchase of the BTH disc harrow with BTH-D drawbar. This instruction manual contains the information on hazards that may occur during operation, work with the device, technical data and the most important guidelines and recommendations to be known and applied to ensure a proper operation. Keep this manual for future reference.
  • Page 5 Fig. 2 Location of VIN placed on the machine. Fig. 3 Rating plate of the BTH disc harrow.
  • Page 6: Safety Symbols And Inscriptions

    The warranty card constitutes an integral part of the machine. Whenever you request any information on spare parts, provide the serial number. For more information on spare parts, • please visit our website at: http://mandam.com.pl/parts/ • call us at +48 668 662 289 • e-mail us at: czesci@mandam.com.pl...
  • Page 7 Safety sign Meaning of the safety sign Location on the implement Frame adjacent to the Keep clear from lift bars mounting place of the upper while controlling the lift fastener Keep clear from foldable Front part of the central and moving parts of the frame adjacent to side implement frames...
  • Page 8: General Information

    2 General information 2.1. Design of the BTH disc harrow with BTH-D drawbar The harrows are available in the following widths: 4.0 m, 5.0 m, 6.0 m, and 8.0 m. Fig. 2 BTH disc harrow with BTH-D drawbar.
  • Page 9: Intended Use Of The Bth Disc Harrow With Bth-D Draw

    The harrow can also be equipped with a hydropack for coupling with a sower. BTH implements with a BTH-D drawbar are (optionally) equipped with their own driving system with a braked axle. The pneumatic system is used for this purpose.
  • Page 10: General Safety Information

    The manufacturer shall not be liable for any unauthorised alternation of the harrow. Only genuine MANDAM spare parts shall be used during the warranty period. The disc harrow must be operated with all precautionary measures and due care, in particular: •...
  • Page 11: Proper Hitching And Unhitching Of The Harrow With/From The Tractor

    3.1. Proper hitching and unhitching of the harrow with/from the tractor • Hitch the implement with the tractor according to the recommendations, use pins and protect the suspension pins with cotter pins. • When hitching the disc harrow, do not stay between the tractor and the attached implement.
  • Page 12 Fig. 3 Pneumatic diagram of BTH harrow with BTH-D drawbar: 1 – spiral wire connector (red), 2 – spiral wire connector (yellow), 3 – 40L air tank, 4 – agricultural trailer control valve, 6 – 24” diaphragm actuator, 7-8 – rubber airline, 12 – adapter, 16 – M22 tee, 19 – tank plug.
  • Page 13: Brake System

    Fig. 4 Diagram of the dual-circuit hydraulic brake with key working components of the BTH harrow with the BTH-D drawbar: 1 – combination brake cylinder, 2 – valve with pump tank, 3 – DLC- dual-line quick coupling with cable, 4-5 – hydraulic line, 6 – hydraulic cylinder mounting plate, 20 – bar handle, 23 – elbow connector, 24 –...
  • Page 14 Fig. 5 An overview view of the dual-line hydraulic braking system. Fig. 6 Valve with marked components. Figures 7 and 8 show the corresponding valve plans, along with the designations of the most important wires and connectors, where they denote sequentially: •...
  • Page 15 Fig. 7 A plan showing the joints from the tractor side. • CT – output port (of brake actuators or load sensing valve, if installed), • ST – output port (of spring brake sections of connected SAHR actuators – SL port), •...
  • Page 16 Fig. 9 Marking the connection point of the metal rope to its dedicated housing. If the braking system includes an automatic load sensing valve of type 206104/xx, connect the SL-A port of the automatic brake valve to the SL port of the load sensing valve.
  • Page 17 Fig. 11 Standard position of the activation spool in the travel position. Mode 2 – Emergency mode: When the trailer is disconnected from the tractor, an automatic brake valve connects the spring brake section of the SAHR cylinders to the tank. The oil holding the springs under tension is discharged into the tank, the spring action activates the emergency brake function.
  • Page 18 Fig. 12 Port of dummy connection of the remaining coupling joints. Mode 3 – Removal of the automatic brake function: To remove the automatic brake function (if towing a trailer by a non-double-line tractor or other type of vehicle): • Press the activation spool (as in the image on the right) until it is fully extended.
  • Page 19 pressure in the secondary line (SL) increases to its normal value. The valve’s normal function mode is engaged each time the operator connects the dual- line connector, turns on the tractor engine and releases the parking brake. In this situation, all emergency functions are switched on. Place the signalling device back to its travel position before turning on the tractor engine and before releasing the tractor’s parking brake.
  • Page 20: Hydraulic System Quick Couplings

    Fig. 14 Location of tank plug, depressurisation button and manual pump. Check the oil level in the tank regularly: the level must always be between the “max” and “min” positions on the oil level gauge. If the oil level is below the minimum, follow one of the previously described procedures to refill the tank.
  • Page 21: Transport Safety On Public Roads

    Fig. 15. Designation and purpose of the various quick couplings in the machine. 3.6. Transport safety on public roads For the period of transport, the side sections of the disc harrow must be put in transport position using the hydraulic system. Before folding, the machine must be lifted sufficiently high until the folded side sections do not collide with the ground.
  • Page 22: Residual Risk Description

    3.7. Residual risk description Mandam Sp. z o.o. makes every effort to eliminate the risk of accidents. However, there is some residual risk that may cause an accident. The biggest hazard occurs when/during: • using the implement for purposes other than described in the manual, •...
  • Page 23 Axle load calculations Key: GC – tractor weight, TP – front axle load for the unhitched tractor, TT – rear axle load for the unhitched tractor, GT – total weight of the equipment attached at the back, GP – total weight of the front-mounted machine, a –...
  • Page 24: Preparation Of The Disc Harrow

    4.1. Preparation of the disc harrow The disc harrow is usually supplied for sale in a ready-to-operate condition. Due to the limitations of the means of transport, it is also possible to deliver it in a partially disassembled condition – usually by disconnecting the roller. When preparing the unit for operation for the first time, its components (roller) must be assembled.
  • Page 25: Hitching The Harrow With The Tractor

    Fig. 17 Arm and roller clamp connection. CAUTION! The correct procedure for mounting the rollers in the arm clamps requires that the screws are tightened evenly diagonally so that the entire plane of the arm brackets is flush with the plane of the roller clamp profile.
  • Page 26: Hitching The Sower With The Disc Harrow

    While attaching the disc harrow to the tractor, complete the following steps: • switch the tractor hydraulic system into adjustment position, • uncouple the suspension axle from the implement and attach it to the tractor’s lower bars, • reverse the tractor to a distance that allows the suspension axle to be connected to the frame plates and the upper fastener and harrow support rail, •...
  • Page 27: Implement Opening Sequence

    Fig. 19 Main frame with automatic side extension locking mechanism. 4.4.2 Implement opening sequence Before unfolding the folding side the extensions of the machine, learn the opening sequence to perform this operation correctly. 1. First, raise the implement as much as possible to be able to fold it correctly, avoiding the risk of the folding arms snagging on the ground during movement (Fig.
  • Page 28 Fig. 20 Implement opening sequence: 1- raise the implement up to the maximum, 2- fold the side extensions into the “closed” position. 3. Then, after making sure that the hook of the hydraulic side extension lock mechanism allows the machine side extensions to be unlocked, proceed to open them fully (Fig.
  • Page 29: Working Depth Of The Bth Disc Harrow With Bth-D Drawbar

    Fig. 23 View of the implement at the completion of the side extension opening sequence. The implement arms are fully open. 4.4.3 Working depth of the BTH disc harrow with BTH-D drawbar The working depth is determined by the position of the roller the arms of which are...
  • Page 30 adjustable by the cylinders. In order to maintain a constant stable position of the roller (working depth) during operation, latches are fitted on the cylinder piston (Fig. 24). Initially, set the roller and the wheels above the lower disc edge at the height corresponding to the approximate working depth, and adjust the position during operation, after taking into account the roller recess.
  • Page 31 Fig. 26 Correct way to place the first (1) latch on the cylinder piston rod to adjust the implement working depth. Fig. 27 Latches fitted incorrectly on the cylinder piston rod. If the latches are partially omitted from the cylinder, the forces acting on the piston rod are not evenly distributed and may cause the piston rod to buckle, resulting in damage to the entire piston assembly.
  • Page 32: Rules For Transporting The Harrow On Public Roads And Lighting The Implement

    4.5. Rules for transporting the harrow on public roads and lighting the implement According to the road traffic safety regulations (Regulation of the Minister of Infrastructure of 31 December 2002, Journal of Laws No. 32 of 2002, item 262) – a unit consisting of an agricultural tractor and an agricultural implement hitched with the same must meet the requirements identical to those applying to the tractor itself.
  • Page 33 Fig. 28 Front and rear light systems and their position. Clean the implement from soil residues and check the lights before transporting it. After lifting the machine, check the ground clearance under the lowest working elements, which should be at least 25 cm. The permissible transport speed of the tractor and implement is 15 km/h.
  • Page 34: Maintenance And Lubrication

    Fig. 29 Securing the machine’s drawbar fastener with a padlock. To prevent unauthorised use of the machine, use a security device in the form of a padlock. For this purpose, the safety pin should be locked by the eye of a fastened padlock pinned through the hole inside the pin (Figure 29), preventing it from falling out during operation or transportation.
  • Page 35: Screw Tightening Torque

    4.7. Screw tightening torque Screws, bolts and nuts should be tightened in the machine with the appropriate torque depending on the strength class of the bolt and its thread size and pitch. The corresponding torque values for tightening them are shown in Table 3. Table 3.
  • Page 36: Maintenance Of The Bth Disc Harrow With Bth-D Drawbar

    However, if this is not possible, check the condition of the protection from time to time and supplement the grease washed away by the rain, if necessary. Operation of the driving system of the BTH with drawbar BTH-D Regular checks of tyre pressure. If air leakage in the tyres is considerable, check tightness of the air valve.
  • Page 37 Hydraulic system maintenance Maintenance of the hydraulic system consists in visual inspections for leak tightness. Remember to insert pins into quick-fit connectors. If there is an oil leakage from connections of hydraulic hoses, the connector must be tightened. If the oil leakage is not remedied, replace the component or the hose with a new one.
  • Page 38: Replacement Procedures

    • wheel brakes brake unevenly and non-simultaneously. To this end, change the position of the spreader arm to which the piston of the pneumatic cylinder is acting by changing the initial angle of the spreader shaft at the multi-row end of the shaft and adjust the length of the bar on the screw.
  • Page 39: Storage Of The Disc Harrow

    CAUTION Disconnect the unit from the tractor before performing any disassembly activities. CAUTION! During repairs and maintenance, the implement must be lowered on the ground and be resting on supports ensuring full stability. The tractor engine must be stopped. During repairs and maintenance, use proper spanners and safety gloves.
  • Page 40: Disassembly And Withdrawal From Service And Scrapping

    Dispose of the disassembled parts in accordance with the environmental protection requirements. 9 Spare parts for the BTH disc harrow with BTH-D drawbar In order to search, find prices and order original spare parts visit our website at www.mandam.com.pl, “parts”...

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