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PRONAR PU-S25HL Operator's Manual

Snow plough
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PRONAR PU-S25HL / PU-S27HL
ISSUE 1A-10-2015
PRONAR Sp. z o.o.
17-210 NAREW, UL. MICKIEWICZA 101A, PODLASKIE PROVINCE
tel.:
fax:
OPERATOR'S MANUAL
SNOW PLOUGH
PU-S30HL / PU-S34HL
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
+48 085 681 63 29
+48 085 681 63 81
+48 085 681 63 83
+48 085 681 64 29
+48 085 681 63 82
+48 085 682 71 10
www.pronar.pl
321N-00000000-UM

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Summary of Contents for PRONAR PU-S25HL

  • 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 SNOW PLOUGH PRONAR PU-S25HL / PU-S27HL PU-S30HL / PU-S34HL TRANSLATION OF THE ORIGINAL INSTRUCTIONS ISSUE 1A-10-2015 321N-00000000-UM...
  • Page 3 SNOW PLOUGH PRONAR PU-S25HL / PU-S27HL PU-S30HL / PU-S34HL MACHINE IDENTIFICATION 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 "ATTENTION".

  • Page 7: Table Of Contents

    TABLE OF CONTENTS BASIC INFORMATION 1.1 IDENTIFICATION 1.2 PROPER USE 1.3 EQUIPMENT 1.4 TERMS & CONDITIONS OF WARRANTY 1.5 TRANSPORT 1.6 ENVIRONMENTAL HAZARDS 1.10 1.7 WITHDRAWAL FROM USE 1.10 SAFETY ADVICE 2.1 BASIC SAFETY RULES 2.1.1 USE OF MACHINE 2.1.2 HITCHING AND UNHITCHING FROM CARRYING VEHICLE 2.1.3 HYDRAULIC SYSTEM...
  • Page 8 CORRECT USE 4.1 PREPARING FOR WORK 4.2 CHECKING TECHNICAL CONDITION 4.3 HITCHING TO VEHICLE 4.4 SNOW PLOUGH OPERATION 4.12 4.4.1 DISASSEMBLING TRANSPORT PROTECTION 4.12 4.4.2 CONTROLLING THE SNOWPLOUGH 4.13 4.4.3 HYDRAULIC PRESS-DOWN FUNCTION 4.16 4.4.4 SETTING THE WORKING HEIGHT 4.18 4.5 DRIVING ON PUBLIC ROADS 4.19 4.6 UNHITCHING THE MACHINE FROM CARRYING VEHICLE...
  • Page 9 SECTION BASIC INFORMATION...

  • Page 10: Identification

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 1 1.1 IDENTIFICATION FIGURE 1.1 Location of the data plate Meaning of data plate items (FIGURE 1.1): A - machine name B – type C – serial number D – year of manufacture E –...

  • Page 11: Proper Use

    OPERATOR'S MANUAL. 1.2 PROPER USE PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL snowploughs are designed for removing loose snow and snowdrift from roads, squares and other hard road surfaces such as asphalt, concrete paving blocks, paving and concrete. Use for other purposes should be regarded as improper.
  • Page 12 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 1 IMPORTANT! The snowploughs must not be used for purposes other than those for which it is intended, in particular for: • removing icy, compacted or compressed and considerably thick layer of snow frozen to road surface, •...

  • Page 13: Equipment

    SECTION 1 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 1.3 EQUIPMENT The snowplough equipment includes: • Operator's Manual, • Warranty Book, • control panel with a connection lead, • high current socket with electrical supply lead Equipment versions: • Type of snowplough blades: –...

  • Page 14: Terms & Conditions Of Warranty

    SECTION 1 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 15: Transport

    SECTION 1 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL Modification of the machine without the written consent of the Manufacturer is forbidden. In particular, do NOT weld, drill holes in, cut or heat the main structural elements, which have a direct impact on the machine operation safety.
  • Page 16 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 1 FIGURE 1.2 Transport lugs When loading and unloading the machine, comply with the general principles of workplace health and safety for reloading work. Persons operating reloading equipment must have the qualifications required to operate these machines.
  • Page 17 SECTION 1 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 1.3 Centre of gravity ATTENTION! Centre of gravity, depending on the version varies in the ±50 mm range. ATTENTION! Do NOT secure lifting slings or any types of load securing elements to hydraulic and...

  • Page 18: Environmental Hazards

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 1 1.6 ENVIRONMENTAL HAZARDS A 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 19: Safety Advice

    SECTION SAFETY ADVICE...

  • Page 20: Basic Safety Rules

    PRONAR PU-S27HL / PU-S30HL / PU-S34HL 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 21: Hitching And Unhitching From Carrying Vehicle

    SECTION 2 PRONAR PU-S27HL / PU-S30HL / PU-S34HL 2.1.2 HITCHING AND UNHITCHING FROM CARRYING VEHICLE • Do NOT hitch the machine to a carrying vehicle, if the linkage system of the machine is not compatible with the linkage system of the carrying vehicle.

  • Page 22: Transporting The Machine

    PRONAR PU-S27HL / PU-S30HL / PU-S34HL SECTION 2 • Used oil or oil, which has lost its properties, should be stored in original containers or replacement containers resistant to action of hydrocarbons. Replacement containers must be clearly marked and appropriately stored.
  • Page 23 When working on hydraulic systems it is recommended to use oil resistant gloves and protective goggles. • Any modification to the machine frees PRONAR from any responsibility for damage or detriment to health which may arise as a result.

  • Page 24: Machine Operation

    • Do NOT use the snowplough with additional ballast. 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 25 SECTION 2 PRONAR PU-S27HL / PU-S30HL / PU-S34HL • operation of the machine by unauthorised persons or persons under the influence of alcohol or other intoxicating substances, • cleaning, maintenance and technical checks when carrying vehicle is connected and engine is running.

  • Page 26: Information And Warning Decals

    PRONAR PU-S27HL / PU-S30HL / PU-S34HL SECTION 2 2.3 INFORMATION AND WARNING DECALS All signs should always be legible and clean, visible to the operator and also to persons possibly being in the vicinity of the machine in operation. If any safety sign is lost or illegible, it should be replaced with a new one.
  • Page 27 SECTION 2 PRONAR PU-S27HL / PU-S30HL / PU-S34HL ITEM SYMBOL DESCRIPTION Machine model Lifting equipment attachment points while loading the machine Outline marking. Numbers in the item column correspond to decals (FIGURE 2.1)
  • Page 28 PRONAR PU-S27HL / PU-S30HL / PU-S34HL SECTION 2 FIGURE 2.1 Locations of information and warning decals. Meaning of symbols (TABLE 2.1) 2.10...

  • Page 29: Design And Operation

    SECTION DESIGN AND OPERATION...

  • Page 30: Technical Specification

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 3 3.1 TECHNICAL SPECIFICATION TABLE 3.1 BASIC TECHNICAL SPECIFICATION Unit Snowplough model PU-S25HL PU-S27HL PU-S30HL PU-S34HL Working width – angle of 30° 2,155 2,380 2,630 2,970 Working height 10,060 Total width (with a bumper) –...

  • Page 31: General Design

    SECTION 3 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 3.2 GENERAL DESIGN FIGURE 3.1 General design (1) - linkage; (2) - mouldboard; (3) - snowplough blades; (4) - hydraulic system; (5) - electrical lighting system; (6) - parking stands; (7) - wheels; (8) - flag (option)

  • Page 32: Hydraulic System

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 3 3.3 HYDRAULIC SYSTEM FIGURE 3.2 Hydraulic system (1 mouldboard turning cylinder) (1) - mouldboard turning cylinder; (2) - mouldboard lifting cylinder; (3) - Power-Pack electro- hydraulic power supply...
  • Page 33 SECTION 3 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 3.3 Hydraulic system (2 mouldboard turning cylinders) (1) - mouldboard turning cylinder; (2) - mouldboard lifting cylinder; (3) - Power-Pack electro- hydraulic power supply; (4) - overflow valve...

  • Page 34: Electrical System Design

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 3 3.4 ELECTRICAL SYSTEM DESIGN FIGURE 3.4 Electrical system design (1) - control panel; (2) - actuator module; (3) - working lights; (4) - clearance lights; (5) - high current p ug;...
  • Page 35 SECTION 3 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 3.5 Electrical system diagram (1) - control panel; (2) - actuator module; (3) - working lights; (4) - clearance lights...
  • Page 36 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 3...

  • Page 37: Correct Use

    SECTION CORRECT...

  • Page 38: Preparing For Work

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 4.1 PREPARING FOR WORK DANGER Before using the machine, the user must carefully read this Operator's Manual. Careless and improper use and operation of the machine, and non-compliance with the recommendations given in this Operator's Manual is dangerous to your health.
  • Page 39 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL • check technical condition of the linkage components, • check and possibly adjust the tension of springs of snowplough blades with shock absorbers (see 5.3 ADJUSTMENT OF SPRINGS OF SNOWPLOUGH...

  • Page 40: Checking Technical Condition

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 4.2 CHECKING TECHNICAL CONDITION When preparing the machine for normal use, check individual elements according to guidelines presented in table 4.1 TABLE 4.1 Technical inspection schedule FREQUENCY DESCRIPTION SERVICE OPERATION...

  • Page 41: Hitching To Vehicle

    SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 4.3 HITCHING TO VEHICLE The snowplough can be hitched to a carrying vehicle that meets the requirements contained in Table 1.1 „REQUIREMENTS FOR CARRYING VEHICLE”. DANGER Before hitching the machine to carrying vehicle, read the carrying vehicle operator's manual.
  • Page 42 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 ATTENTION! Before mounting the snowplough on the carrying vehicle, make sure that the linkage and the electrical system parameters are compatible. ATTENTION! Before hitching the snowplough to carrying vehicle, dismantle the transport protection (FIGURE 4.2).
  • Page 43 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 4.3 Mounting the snowplough on the carrying vehicle (1,2,3,4) - successive stages of mounting the plough on the carrying vehicle Check the linkage compatibility before mounting the snowplough on the carrying vehicle.
  • Page 44 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 3) Drive the carrying vehicle carefully to the snowplough linkage plate and immobilize the vehicle. 4) If the hooks and the carrying vehicle's mounting plate are correctly aligned, lower the snowplough's linkage using joystick until the hooks are set in the seats of the carrying vehicle's mounting plate.
  • Page 45 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL should be connected to socket (5) under the Power-Pack housing and the other end of the lead should be connected to control panel (4). ATTENTION! The connecting cables should be routed so that they do not get entangled in machine parts.
  • Page 46 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 Activation of the linking function (FIGURE 4.5) causes deactivation of the floating function (FIGURE 4.6) (if it was activated before). DANGER To hitch the machine to the carrying vehicle use only linking elements recommended by the Manufacturer.
  • Page 47 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 4.7 Dismantling parking stands (1) - parking stand; (2) - locking cotter pin The snowplough is equipped with two parking stands (FIGURE 4.7). To dismantle the parking stands: • lift the snowplough mounted on a carrying vehicle, •...

  • Page 48: Snow Plough Operation

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 The ballast of the carrying vehicle's rear axle should be checked after the snowplough is mounted. Amount of additional ballast can be calculated using the following formula (FIGURE 4.8). Additional ballast should be placed above the rear axle of the carrying vehicle.

  • Page 49: Controlling The Snowplough

    SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL • suspend both cable ends (1) at upper fixing point (FIGURE 4.9), • secure the pins with cotter pins. 4.4.2 CONTROLLING THE SNOWPLOUGH DANGER When the machine is in use there must be no bystanders near the machine.
  • Page 50 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 FIGURE 4.11 Controlling the mouldboard (A) - rising the mouldboard; (B) - turning the mouldboard to the left; (C) - turning the mouldboard to the right; (1) - joystick; (2) - Power-Pack ON indicator light;...
  • Page 51 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 4.12 Floating function (1) - floating function switch; (2) - floating function indicator light Floating function enables ground surface tracking during snow clearing i.e. the snowplough linkage system can adjust to uneven surface. Floating function protects the snowplough against damage during operation.

  • Page 52: Hydraulic Press-Down Function

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 FIGURE 4.13 Switching the lights on (1) - main switch of control panel and clearance lights; (2) - low beam switch; (3) - high beam switch; (4) - low beam indicator light; (5) - high beam indicator light; (6) - clearance light;...
  • Page 53 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 4.14 Hydraulic press-down function (option) (1) - joystick; (2) - Power-Pack ON indicator light In the snowplough featuring the press-down function (option), after lowering the snowplough and holding the joystick (1) in the lower position (FIGURE 4.14), the snowplough blades are pressed down to the ground.

  • Page 54: Setting The Working Height

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 4.4.4 SETTING THE WORKING HEIGHT DANGER Setting the working height should be performed only when the engine is stopped, and the snowplough is raised and secured. The wheels are used in order to maintain a proper distance between the ground and collecting blades, to reduce thickness of scraped material layer and to limit the depth of blade sinking into soft ground.

  • Page 55: Driving On Public Roads

    SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 4.5 DRIVING ON PUBLIC ROADS When driving on public roads, respect the road traffic regulations, exercise caution and prudence. If the clearing with machine is done on a pavement or promenade special attention should be paid to the bystanders likely to be near the working machine.
  • Page 56 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 FIGURE 4.16 Installing transport protection (1) - securing cable; (2) - pin; (2) - cotter pin In order to secure the machine's linkage in transport position and protect it against falling or accidental dropping (FIGURE 4.16):...

  • Page 57: Unhitching The Machine From Carrying Vehicle

    SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 4.6 UNHITCHING THE MACHINE FROM CARRYING VEHICLE DANGER Before leaving the vehicle's cab, turn off the engine and immobilise the vehicle with parking brake. IMPORTANT! Unhitching the snowplough from the carrying vehicle should be performed on level, even and sufficiently hard surface in such a manner as to ensure that it is possible to hitch it again.
  • Page 58 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 • install the second parking stand in the same way FIGURE 4.18 Disconnecting the snowplough from the carrying vehicle (1,2,3,4) - successive stages of disconnecting the snowplough from the carrying vehicle In order to disconnect the snowplough from the carrying vehicle, proceed as follows (FIGURE 4.18):...
  • Page 59 SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 3) Drive the carrying vehicle carefully to a distance of about 30 cm from the snowplough. 4) Lower the frame of the snowplough linkage to the lower position, switch the control panel off and immobilize the vehicle.

  • Page 60: Installation Of Equipment

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 4.7 INSTALLATION OF EQUIPMENT 4.7.1 INSTALLATION OF HIGH CURRENT SOCKET IN THE CARRYING VEHICLE ATTENTION! Work on electrical system must be carried out by suitably qualified personnel. Proper high current socket installed on the front of the carrying vehicle is required for the snowplough operation.

  • Page 61: Installing The Warning Flags

    SECTION 4 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 4.7.2 INSTALLING THE WARNING FLAGS FIGURE 4.21 Installing the warning flags (option) (1) - bracket; (2) - mast; (3) - flag; (4) - M6x40 bolt; (5) - M8x50 bolt; (6) - 4.2x19...
  • Page 62 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 4 4.26...

  • Page 63: Maintenance

    SECTION MAINTENANCE...

  • Page 64: Checking And Replacement Of Collecting Blades

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 5.1 CHECKING AND REPLACEMENT OF COLLECTING BLADES DANGER Immobilise the carrying vehicle with parking brake, turn off the carrying vehicle's engine and secure the vehicle's cab against access of third persons.
  • Page 65 SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 5.1 Replacement of rubber blades (1) - 416mm rubber snowplough blade; (2) - 675mm rubber snowplough blade; (3) - 800mm rubber snowplough blade; (4) - clamping strip; (5) - bolt; (6) - nut; (7) - washer...
  • Page 66 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 FIGURE 5.2 Replacement of metal snowplough blades (1) - 416 mm metal snowplough blade; (2) - 675 mm metal snowplough blade; (3) - 800 mm metal snowplough blade; (4) - sleeve; (5) - bolt; (6) - nut; (7) - washer Optionally, the snowplough can be equipped with metal blades (FIGURE 5.2).

  • Page 67: Replacement Of Fenders

    SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL TABLE 5.2 Types of metal plough blades, depending on the plough model PU-S25HL PU-S27HL PU-S30HL PU-S34HL Marking Name FIGURE 5.2 catalogue No. Number of items 416mm metal snowplough blade 220N-08000001-01...
  • Page 68 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 The snowplough is equipped with the right fender (2) and the left fender (3), which are used for protecting the snowplough blades' sides during working near kerbs. Fenders (FIGURE 5.3) are mounted to the mouldboard with bolts (3), washers (4) and nuts (5). The right fender and the left fender are replaced in the same way.

  • Page 69: Adjustment Of Springs Of Snowplough Blades With Shock Absorbers

    SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 5.4 Adjustment of springs of snowplough blades with shock absorbers (A),(B),(C),(D) - sequence of actions; (1) - tightening sleeve; (2) - locking pin; (3) - rod; (4) - spring Repeat actions (A), (B), (C), (D) until proper spring tension is obtained.

  • Page 70: Hydraulic System Operation

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 loose, untightened position). To reduce the spring tension, turn the sleeve in the opposite direction. Make the adjustment using two steel rods with diameter of d= 15 mm and approximate length of L= 400 mm.
  • Page 71 SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 5.5 Checking oil level (1) - oil tank; (2) - filler plug with an oil level dipstick; (3) - housing; (4) - M8x25 bolt; (5) - M8 nut; (6) - washer 8 The oil tank of the electro-hydraulic power supply (FIGURE 5.5) is located under the housing...
  • Page 72 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 The oil in the tank of the electro-hydraulic power supply should be changed once a year (after the working season). Because of its composition, the oil in the hydraulic system is not classified as a dangerous substance, however long-term action on the skin or eyes may cause irritation.
  • Page 73 SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL The machine's hydraulic system should be completely tight sealed. Inspect the seals when the hydraulic cylinder is completely extended. If oil is found on hydraulic cylinder body, check origin of leak. Minimum leaks are permissible with symptoms of "sweating", however in the event of noticing leaks in the form of "droplets"...

  • Page 74: Electrical System Maintenance

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 5.5 ELECTRICAL SYSTEM MAINTENANCE DANGER Do not independently repair electrical system, except items described in chapter ELECTRICAL SYSTEM MAINTENANCE. All electrical system repairs must be performed only by suitably qualified personnel.
  • Page 75 SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL FIGURE 5.7 Replacing the fuse of Power-Pack power supply (1) - high current power lead; (2) - fuse holder; (3) - MEGAVAL 175A fuse There is a 175A MEGAVAL fuse (3) on the supply conduit (+) of the electrical system of Power-Pack power supply (FIGURE 5.7).

  • Page 76: Lubrication

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 To replace the fuse of solenoid valves (FIGURE 5.8), remove the housing of the electro- hydraulic power supply, remove the protective cover (3) and take out the fuse (1) from the housing (2).
  • Page 77 SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL gun, filled with grease. Before commencing lubrication insofar as is possible remove old grease and other contamination. Remove and wipe off excess oil or grease ŁT-43-PN/C- 96134 grease is recommended for lubrication.

  • Page 78: Storage

    PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 5.7 STORAGE After finishing work, machine should be thoroughly cleaned and washed with water jet. While washing, do not direct a strong water or steam jet at information and warning decals or hydraulic lines and electrical components.

  • Page 79: Tightening Torque For Nut And Bolt Connections

    SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL 5.8 TIGHTENING TORQUE FOR NUT AND BOLT CONNECTIONS During maintenance and repairs use appropriate torque for bolt connections (unless other is specified for a particular connection). Recommended bolt tightening torque values are given in TABLE 5.6.
  • Page 80 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 FIGURE 5.10 Special engineering solutions Bolts and nuts of the rockers' fixing and hydraulic cylinders should be tightened only to eliminate the axial clearance. FIGURE 5.11 Mouldboard fixing Mouldboard fixing bolts should be tightened using the tightening torque of 50±2 Nm.

  • Page 81: Troubleshooting

    SECTION 5 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL The fasteners in the places featuring special engineering solutions (FIGURE 5.10) should be tightened only to eliminate axial clearance. Mouldboard fixing bolts (FIGURE 5.11) should be tightened using the tightening torque of 50±2 Nm.
  • Page 82 PRONAR PU-S25HL / PU-S27HL / PU-S30HL / PU-S34HL SECTION 5 5.20...
  • Page 83 NOTES ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. ………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………..

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