PRONAR PDF301 Operator's Manual
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PRONAR PDF301 Operator's Manual

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ISSUE 1B-02-2019
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
phone.:
fax:
OPERATOR'S MANUAL
DISC MOWER
PRONAR PDF301 / PDF301C
PRONAR PDF340 / PDF340C
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
PUBLICATION NO. 570N-00000000-UM
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl

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  • Page 1 +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 DISC MOWER PRONAR PDF301 / PDF301C PRONAR PDF340 / PDF340C TRANSLATION OF THE ORIGINAL INSTRUCTIONS ISSUE 1B-02-2019 PUBLICATION NO. 570N-00000000-UM...
  • Page 3 DISC MOWER PRONAR PDF301 / PDF301C PRONAR PDF340 / PDF340C MACHINE IDENTIFICATION SYMBOL /TYPE: SERIAL NUMBER:...
  • Page 4 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. MANUFACTURER'S ADDRESS PRONAR Sp. z o.o. ul. Mickiewicza 101A 17-210 Narew CONTACT TELEPHONES...
  • Page 5 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 "IMPORTANT".

  • Page 9: Table Of Contents

    TABLE OF CONTENTS BASIC INFORMATION IDENTIFICATION PROPER USE EQUIPMENT TERMS & CONDITIONS OF WARRANTY TRANSPORTATION ENVIRONMENTAL HAZARDS 1.10 WITHDRAWAL FROM USE 1.10 SAFETY ADVICE BASIC SAFETY RULES 2.1.1 USE OF MACHINE 2.1.2 HITCHING AND UNHITCHING FROM CARRYING VEHICLE 2.1.3 HYDRAULIC SYSTEM 2.1.4 TRANSPORTING THE MACHINE 2.1.5 MAINTENANCE 2.1.6 WORK OF MOWER...
  • Page 10 ADJUSTING THE CUTTING HEIGHT 4.14 4.5.2 ADJUSTMENT OF CUTTER BAR PRESSURE 4.16 4.5.3 SETTING THE SWATH WIDTH - PDF301 / PDF340 4.17 4.5.4 SETTING THE SWATH WIDTH - PDF301C / PDF340C 4.19 4.5.5 SETTING THE SWATH CONDITIONING INTENSITY - PDF301C / PDF340C 4.20...
  • Page 11 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS 5.22 TROUBLESHOOTING 5.24...
  • Page 13 SECTION BASIC INFORMATION...

  • Page 14: Identification

    FIGURE 1.1Location of the name plate. (1) name plate The PDF301 / PDF301C / PDF340 / PDF340C front disc mower has a name plate (1) located on the left side of the linkage frame. When buying the disc mower 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.

  • Page 15: Proper Use

    The PDF301 / PDF301C / PDF340 / PDF340C front disc mower is constructed according to current safety requirements and engineering standards. The PDF301 / PDF301C / PDF340 / PDF340C front disc mower is designed to cut low stemmed green fodder (grass, alfalfa, etc.) on stone free cultivated fields with a level surface.
  • Page 16 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 1 Unauthorised repairs and modifications of the machine without prior consent of the Manufacturer will be regarded as use contrary to the intended purpose. The machine may only be used by appropriately trained users, who are aware of the dangers, design and operation of the machine.

  • Page 17: Equipment

    (PTO counter-clockwise rotation) 1.4 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. Defects discovered during the warranty period will be removed by the Warranty Service. The repair period is specified in the Warranty Book.
  • Page 18 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 1 • mechanical damage which is the user's fault, caused by road accidents, • by inappropriate use, adjustment or maintenance, use of the machine for purposes other than those for which it is intended, •...

  • Page 19: Transportation

    SECTION 1 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 1.5 TRANSPORTATION The mower is ready for sale completely assembled and does not require packing. Solely the operation and maintenance documentation of the machine and possibly flexible guards for additional equipment require packing.
  • Page 20 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 1 FIGURE 1.2 Transport lugs. (1)- transport lug The mower should be attached to lifting equipment in places designed for this purpose (FIGURE 1.2), i.e. to transport lugs (1). When lifting the mower take particular care due to the possibility of tipping over the machine and the risk of injuries from protruding parts.
  • Page 21 SECTION 1 PRONAR PDF301 / PDF301C / PDF340 / PDF340C correct direction it is recommended to apply additional guy cables. During the loading work particular care should be taken not to damage paint coating. IMPORTANT Do NOT attach lifting slings or any types of securing components to hydraulic cylinders.

  • Page 22: Environmental Hazards

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 1 1.6 ENVIRONMENTAL HAZARDS Any hydraulic oil leak constitutes a direct threat to the natural environment owing to its limited biodegradability. While carrying out maintenance and repair work which involves the risk of an oil leak, this work should take place on an oil resistant floor or surface.

  • Page 23: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 24: Basic Safety Rules

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 2.1 BASIC SAFETY RULES 2.1.1 USE OF MACHINE • Before using the machine, the user must carefully read this Operator's Manual and the WARRANTY BOOK. When operating the machine, the operator must comply with the recommendations.

  • Page 25: Hitching And Unhitching From Carrying Vehicle

    SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • Do NOT leave tractor driver's seat when the tractor is moving. • The machine may only be used when all the safety guards and other protective components are technically sound and correctly positioned. In the event of loss or destruction of the safety guards, they must be replaced with new ones.

  • Page 26: Hydraulic System

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 • Mower uncoupled from the tractor must be supported with the aid of supports and pin must be protected. 2.1.3 HYDRAULIC SYSTEM • The hydraulic system is under high pressure when operating.

  • Page 27: Transporting The Machine

    SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 2.1.4 TRANSPORTING THE MACHINE • When driving on public roads, comply with the road traffic regulations in force in the country, in which the machine is used. • Do not exceed the permitted speed arising from road conditions and design limitations.

  • Page 28: Maintenance

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 2.1.5 MAINTENANCE • During the warranty period, any repairs may only be carried out by Warranty Service authorised by the manufacturer. It is recommended that necessary repairs to machine should be undertaken by specialised workshops. Repair work at the mower should be carried out by persons trained and entitled to do so.
  • Page 29 SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • Regularly check technical condition and mounting of all guards and protective components. • The paint coating should be cleaned off before beginning welding work. Burning paint fumes are poisonous for people and animals. Welding work should be carried out in a well lit and well ventilated space.

  • Page 30: Work Of Mower

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 2.1.6 WORK OF MOWER • Before lowering or lifting the mower mounted on the three-point linkage, make sure there are no bystanders, near the machine. • Before starting mower drive, the cutting assembly must be in working position.
  • Page 31 SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • The chains preventing the shaft cover from turning while the shaft is working, shall be secured to a fixed element of machine structure. • Do NOT use the securing chains to support the shaft while machine is parked or when transporting the machine.

  • Page 32: Description Of Residual Risk

    SECTION 2 2.2 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 33: Information And Warning Labels

    In the event of their destruction, they must be replaced with new ones. Safety labels are available from your PRONAR dealer or directly from PRONAR customer service. New assemblies, changed during repair, must be labelled once again with the appropriate safety signs.
  • Page 34 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 ITEM LABEL DESCRIPTION Danger associated with the rotating PTO shaft Do not reach into crushing space because components may move. Danger of crushing hands or fingers Thrown out objects endanger the whole body.
  • Page 35 SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C ITEM LABEL DESCRIPTION Do NOT stand near lifting linkages during lifting or lowering Do not touch any rotating components until they come to a complete standstill. Lubrication points Maximum allowable PTO shaft...
  • Page 36 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 ITEM LABEL DESCRIPTION Machine type (PDF301 / PDF340) Machine type (PDF301 / PDF340) Caution — The drive chain or toothed belt drive. Exercise particular caution. (PDF301C / PDF340C) Caution - rotor. Exercise particular caution.
  • Page 37 SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C ITEM LABEL DESCRIPTION Machine type (PDF301C / PDF340C) Machine type (PDF301C / PDF340C) Numbers in the “Item” column correspond to labels (FIGURE 2.1; FIGURE 2.2) 2.15...
  • Page 38 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 FIGURE 2.1 Locations of information and warning labels Meaning of symbols (TABLE 2.1) 2.16...
  • Page 39 SECTION 2 PRONAR PDF301 / PDF301C / PDF340 / PDF340C FIGURE 2.2 Locations of information and warning labels Meaning of symbols (TABLE 2.1) 2.17...
  • Page 40 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 2 2.18...
  • Page 41 SECTION DESIGN AND OPERATION...

  • Page 42: Technical Specification

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 BASIC TECHNICAL SPECIFICATION PRONAR PDF301 / PDF301C unit PDF301 PDF301C Dimensions Total width in working setting 3 570 Width in transport setting (side covers lifted)
  • Page 43 SECTION 3 PRONAR PDF301 / PDF301C / PDF340 / PDF340C TABLE 3.2 BASIC TECHNICAL SPECIFICATION PRONAR PDF340 / PDF340C unit PDF340 PDF340C Dimensions Total width in working setting 4 000 Width in transport setting (side covers lifted) 3 400 Total length in transport setting...

  • Page 44: General Design

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.2 GENERAL DESIGN FIGURE 3.1 General design (1) linkage frame, (2) cutter bar transmission, (3) stay springs, (4) main frame with guards, (5) cutter bar, (6) triangular hitching system, (7) swath guide, (8) support leg, (9) mower central transmission, (10)- swath conditioner belt drive (PDF301C / PDF340C), (11)- conditioning assembly supports (PDF301C / PDF340C), (12)- swath guides (PDF301C / PDF340C);...
  • Page 45 SECTION 3 PRONAR PDF301 / PDF301C / PDF340 / PDF340C The PDF301 / PDF301C / PDF340 / PDF340C front disc mower (FIGURE 3.1) is designed to operate with a tractor equipped with a front three-point linkage and front power takeoff shaft (PTO).

  • Page 46: Linkage

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.3 LINKAGE FIGURE 3.2 Linkage design (1) linkage frame, (2) tension rod, (3) tensioning spring, (4) stay spring, (5) hydraulic cylinder, (6) transport lock The mower linkage (FIGURE 3.2) consists of a linkage frame (1), with tension rods (2) attached to the frame by means of rotary pins.
  • Page 47 SECTION 3 PRONAR PDF301 / PDF301C / PDF340 / PDF340C FIGURE 3.3 Hitching system (1) triangular hitching system, (2) catch, (3) catch lever, (4) lower arms mounting pin, (5) cotter pin, (6) upper tension rod mounting pin, (7) relief chains.

  • Page 48: Drive Assembly And Cutting Unit

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.4 DRIVE ASSEMBLY AND CUTTING UNIT FIGURE 3.4 Drive transmission (1) mower central transmission, (2) cutter bar drive transmission, (3) PTO shaft, (4) PTO shaft for connection with tractor (5) cutter bar, (6) double articulated joint...
  • Page 49 PRONAR PDF301 / PDF301C / PDF340 / PDF340C The PDF301 / PDF301C / PDF340 / PDF340C mower is designed to work with PTO speed 1000 rpm and it is suitable for connection to tractors with PTO shaft revs (A) (FIGURE 3.4) turning clockwise when seen from front of tractor.

  • Page 50: Hydraulic System

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.5 HYDRAULIC SYSTEM Hydraulic system (FIGURE 3.5) in the front mower allows raising and lowering of cutting unit. The machine is equipped with a single acting hydraulic cylinder (1). The cylinder is supplied from tractor's external hydraulic system connected to a quick coupler (3) by means of a hydraulic line.

  • Page 51: Conditioning Assembly (Pdf301C / Pdf340C)

    (6) swath guides adjustment screws; (7) conditioning assembly supports; (8) drive shaft PRONAR PDF301C / PDF340C mower conditioning assembly consists of a shaft (1) on which conditioner flail blade (2) are fitted. Swath conditioner flail blades intercept material from the cutter bar and toss it over the conditioner shaft (2) to screw adjusted (6) swath guides (3), which form a swath of a specific width (1.4 to 2.04 m) depending on the setting.
  • Page 52 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 3 3.12...

  • Page 53: Correct Use

    SECTION CORRECT...

  • Page 54: Preparing For Work

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 4.1 PREPARING FOR WORK The manufacturer guarantees that the mower is fully operational and has been checked according to quality control procedures and is ready for use. This does not release the user from an obligation to check the machine's condition after delivery and before first use.
  • Page 55 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • connect PTO shaft to tractor and mower, • start tractor PTO slowly. IMPORTANT Before connecting the mower to tractor adjust the length of PTO shaft according to the PTO shaft Operator's Manual.
  • Page 56 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 DANGER Before using the mower, the user must carefully read this operator's manual. Careless and improper use and operation of the mower, and non-compliance with the recommendations given in this operator's manual is dangerous to your health.

  • Page 57: Checking Technical Condition

    SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 4.2 CHECKING TECHNICAL CONDITION When preparing the rotary rake for normal use, check individual components according to guidelines presented in TABLE 4.1. TABLE 4.1 TECHNICAL INSPECTION SCHEDULE FREQUENCY DESCRIPTION SERVICE OPERATION...

  • Page 58: Hitching To Tractor

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 4.3 HITCHING TO TRACTOR The mower may only be mounted on a tractor fulfilling the requirements contained in TABLE „1.1 AGRICULTURAL TRACTOR'S REQUIREMENTS”. IMPORTANT Before using the mower, the user must carefully read the tractor operator's manual.
  • Page 59 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C front of a tractor. To connect the machine to a tractor with PTO rotating in the opposite direction (B), disassemble and turn the mower's bevel gear (1) by 180°: • disassemble the PTO shaft (2) and the shaft guard (3), •...
  • Page 60 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 FIGURE 4.2 Hitching to tractor (1) triangular hitching system, (2) lower tension rod of tractor's three-point linkage, (3) top tension rod, (4) support leg, (5) catch lever, (6) catch, (7) catch limiter, (8) catch bolt, (9) support pin, (10) support leg seat, (A) pin hole –...
  • Page 61 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C Once PTO rotation direction is determined and possibly after reversing the direction, in order to attach the mower to tractor, proceed as follows (FIGURE 4.2): • Attach triangular hitching system (1) to tensions rods (2) of tractor's front three-point linkage, •...
  • Page 62 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 • Lift support leg (4) and insert the cotter pin (9) into the hole (A), • Raise the supports (7) (FIGURE 3.6) of the conditioning assembly (PDF301C / PDF340C) and secure with the cotter pin.

  • Page 63: Transporting The Machine

    SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 4.4 TRANSPORTING THE MACHINE When driving on public or private roads, respect the road traffic regulations, exercise caution and prudence.. FIGURE 4.3 Locking the mower in the transport position (1) hydraulic cylinder, (2) cut-off valve, (3) relief chains, (4) locking lever, (5) cotter pin, (A) locking lever hole –...
  • Page 64 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 • secure mower against falling by closing cut-off valve (2) located on the hydraulic cylinder. Set valve in position (Z) „CLOSED”. FIGURE 4.4 Raising guards to the transport position (1) – side guards; (2) – securing pins •...
  • Page 65 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • Transporting on public roads and outside fields must always take place with machine raised. • Before moving off make sure that there are no bystanders, especially children, near the mower or the tractor. Take care that the driver has sufficient visibility.

  • Page 66: Setting And Mowing

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 4.5 SETTING AND MOWING 4.5.1 SETTING THE MOWER INTO THE OPERATING POSITION AND ADJUSTING THE CUTTING HEIGHT To work with the mower, first set it appropriately. FIGURE 4.5 Mower base position (1) linkage frame, (2) hydraulic cylinder, (3) tension rod, (4) rubber fender, (4) relief chains, (5) top tension rod, (X) recommended distance 700 mm.
  • Page 67 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C FIGURE 4.6 Front mower working positions (A) tracking terrain - upward, (B) tracking terrain - downward, (C) tracking terrain - crosswise. If terrain in front of mower is inclined downward then the cutting unit moves downward in relation to the frame (B) (FIGURE 4.6).

  • Page 68: Adjustment Of Cutter Bar Pressure

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 If the terrain in front of the machine is inclined upward, the cutting unit moves upward until its rubber fender (3) rests on the linkage frame beam (1) (FIGURE 4.5). During this motion cutter bar turns back maintaining the same stubble height and reducing the risk of blades coming into contact with the ground.

  • Page 69: Setting The Swath Width - Pdf301 / Pdf340

    Machine loading is set in a factory so that pressure on the soil is suited to work in normal conditions. 4.5.3 SETTING THE SWATH WIDTH - PDF301 / PDF340 Adjust the swath width depending on the density and length of the crop. With dense and long crops the swath should be wide, while with short crops the swath width should be reduced.
  • Page 70 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 FIGURE 4.8 Swath guide adjustment PDF301 / PDF340 (1)- right swath guide unit; (2)- left swath guide unit; (3)- guide arm; (4)- head; (5)- guide unit cushion spring for the vertical plane; (6)- guide unit cushion spring for the horizontal plane;...

  • Page 71: Setting The Swath Width - Pdf301C / Pdf340C

    SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 4.5.4 SETTING THE SWATH WIDTH - PDF301C / PDF340C Two swath guides installed on the conditioner unit support frame are used to adjust the swath width. FIGURE 4.9 Swath guide adjustment PDF301C.

  • Page 72: Setting The Swath Conditioning Intensity - Pdf301C

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 Adjust the swath blade (2) to match the setting of the swath guide (1) so that the stream of the crops mown be guided to the swath guide. In order to do this:: •...

  • Page 73: Mowing

    SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C FIGURE 4.10 Swath conditioner adjustment PDF301C / PDF340C. (1)- swath conditioner adjustment lever; (2)- cotter pin; (3)- swath conditioner flail blades; (4)- damping fingers; MIN- minimum swath conditioning intensity setting; MAX- maximum swath conditioning intensity setting;;...
  • Page 74 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 After reaching the field edge, first set the mower from transport position into working position. In order to do this: • using three-point linkage lower cutting unit to the ground, •...
  • Page 75 SECTION 4 PRONAR PDF301 / PDF301C / PDF340 / PDF340C • there is a great risk of running into foreign bodies e.g. stones, branches and heaps of soil. Be especially careful when mowing along ditches, furrows and slopes. IMPORTANT If the machine is in the working position and cuts, the single acting cylinder for lifting the cutting unit must always be set in floating position so that the cutting unit may move freely tracking the ground contours optimally.

  • Page 76: Disconnecting From Tractor

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 4 4.6 DISCONNECTING FROM TRACTOR In order to disconnect the mower from the tractor proceed as follows: • release mower support foot (4) (FIGURE 4.2) and secure it, • lower mower using three point linkage to rest position, •...

  • Page 77: Maintenance

    SECTION MAINTENANCE...

  • Page 78: Checking And Replacing Cutting Blades

    PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 5.1 CHECKING AND REPLACING CUTTING BLADES 5.1.1 INSPECTION AND REPLACEMENT OF THE CUTTER BAR BLADES DANGER During inspection and replacement of blades, switch off tractor engine and remove the key from the ignition and disengage PTO shaft. Cutter bar must rest on the ground.
  • Page 79 SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C A bent or damaged knife must be replaced with a new one. Cutting blades must be replaced in pairs in order to maintain the balance of the cutting disc. Before proceeding to replace the blades, clean the residue of mown material from the cutter bar.
  • Page 80 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 FIGURE 5.2 Cutting disc rotation direction (1) right cutting knife, (2) left cutting knife...

  • Page 81: Blades

    SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C Due to different cutting disc rotation direction, cutter bar (FIGURE 5.2) is equipped with the right blades (A) and left blades (B). Rotation direction is indicated on the knife.. IMPORTANT Each time a knife hits an obstacle such as a stone or a branch, its technical condition must be inspected.
  • Page 82 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 Regularly inspect flail blades. Visually inspect flail blades, their mountings and rubber blocks. Worn rubber blocks, distorted or broken blades should be replaced. Blades should be replaced in pairs to maintain balance.

  • Page 83: Drive System Maintenance

    SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 5.2 DRIVE SYSTEM MAINTENANCE Drive system maintenance involves general checking of the bevel gear, changing or supplementing transmission oil deficiencies. In the event of damage to transmission, contact authorised service point in order to perform repairs..
  • Page 84 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 Check oil level in bevel gears daily. FIGURE 5.5 Inspection points of gears. (1) filler plug, (2) inspection plug, (3) air vent plug. To check the oil level in bevel gears (FIGURE 5.5): •...
  • Page 85 SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C DANGER When checking oil level and changing oil, use appropriate personal protection equipment i.e. protective clothing, safety shoes, gloves, safety goggles. Avoid contact of skin with oil. Oil in both bevel gears must be changed after the first 50 hours of work. The next oil change should be made after 500 hours of work or once a year, whichever occurs first.
  • Page 86 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 If a leak is noticed, carefully inspect seals and check the oil level. Transmission operation with insufficient oil may cause permanent damage of the mechanism. Repair of transmission during warranty period may only be performed at authorised mechanical workshops.
  • Page 87 SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C Belt tension (FIGURE 5.6) can be adjusted using the adjustment nut (9) controlling tension of the tensioner spring (7). To do this, unscrew the locknut (8) and tighten the adjusting nut (9) on the bolt to the point where the tensioner spring (7) will be at a minimum tension.

  • Page 88: Cutter Bar Maintenance

    To check oil level remove inspection / filler plug (1) located between the third and fourth disk (PDF301 / PDF301C) or fourth and fifth disc (PDF340 / PDF340C) (FIGURE 5.7). When oil is cold wait approximately 15 minutes before checking the oil level. Check the oil level on a level cutter bar.
  • Page 89 Cutter bars are filled with gear oil SAE90EP (80W90 GL-5): 3.0 litre for PDF301 / PDF301C or 3.4 litre for(PDF340 / PDF340C. It is best to change oil immediately after completing work when cutter bar is still hot and impurities are mixed with oil.
  • Page 90 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 FIGURE 5.8 Cleaning and lubricating the drive disk (1) drive disc, (2) articulated shaft, (3) cover, (4) bolt Required service actions: • unscrew nuts (4), • remove both covers (3), •...

  • Page 91: Hydraulic System Maintenance

    SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 5.4 HYDRAULIC SYSTEM MAINTENANCE DANGER Before commencing whatever work on the hydraulic system reduce the pressure in the system. During work on the hydraulic systems use the appropriate personal protection equipment i.e.
  • Page 92 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 TABLE 5.2 HL32 HYDRAULIC OIL CHARACTERISTICS ITEM NAME VALUE ISO 3448VG viscosity classification Kinematic viscosity at 40 28.8 ÷ 35.2 mm ISO 6743/99 quality classification DIN 51502 quality classification Flash-point...

  • Page 93: Lubrication

    SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 5.5 LUBRICATION Machine lubrication should be performed with the aid of a manually or foot operated grease gun, filled with generally available permanent grease. Before commencing lubrication insofar as is possible remove old grease and other contamination. Remove excess oil or grease.
  • Page 94 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 NUMBER OF TYPE OF LUBRICATION ITEM NAME LUBRICATION LUBRICANT FREQUENCY POINTS Splined drive shaft SOLID 20 hours Bevel gear 500 hours Cutter bar 500 hours Link ball-and-socket joint SOLID 20 hours...
  • Page 95 SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C FIGURE 5.9 Lubricating points PDF301 / PDF301C / PDF340 / PDF340C 5.19...
  • Page 96 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 FIGURE 5.10 Lubricating points PDF301C / PDF340C 5.20...

  • Page 97: Storage

    SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C 5.6 STORAGE After finishing work with disc mower carefully clean and wash it with water jet. While washing do not direct a strong water or steam jet at information and warning decals, bearings or hydraulic lines.
  • Page 98 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 5.7 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS Unless other tightening parameters are given, during maintenance repair work apply appropriate torque to tightening nut and bolt connections. Recommended tightening torque of most frequently applied nut and bolt connections are given in TABLE 5.4.
  • Page 99 SECTION 5 PRONAR PDF301 / PDF301C / PDF340 / PDF340C THREAD 10.9 DIAMETER (d) TIGHTENING TORQUE [Nm] [mm] 1050 1150 1650 1050 1450 2100 - resistance class according to DIN ISO 898 standard IMPORTANT Should it be necessary to change individual parts, use only original parts or those indicated by the Manufacturer.
  • Page 100 PRONAR PDF301 / PDF301C / PDF340 / PDF340C SECTION 5 5.8 TROUBLESHOOTING TABLE 5.5 FAULTS AND REMEDIES FAULT CAUSE REMEDY Lifting arm interlocked with a pin Remove blocking pin Mower cutting unit Incorrectly connected or Check quick couplers and cannot be lifted or...
  • Page 101 NOTES …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… ……………………………………………………………………………………………………………...
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