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OILTAP M
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OILTAP M

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@ValuableSugilite

Questions and Answers

What must be done before starting work on the Laststufenschalter?

  • Ignore safety instructions
  • Use unqualified personnel
  • Read the manual completely (correct)
  • Leave the equipment uninspected

    • The maintenance training for the Laststufenschalter is not necessary.

    False

    What is the purpose of the safety instructions provided in the manual?

    To prevent personal injuries and equipment damage.

    The manual emphasizes the need for ________ personnel when performing work.

    <p>qualified</p> Signup and view all the answers

    Match the part names with their respective item's purpose or note:

    <p>Entlüftungsschraube = Ventilation screw Plyamiddichtung = Plyamide seal Dichtung für Rohrleitungsanschluß = Seal for pipeline connection O-Ring für oberen Getriebestufendeckel = O-ring for upper gearbox cover</p> Signup and view all the answers

    What is the part number for the Reedkontakt?

    <p>581317:01</p> Signup and view all the answers

    What is the release date for the magnet?

    <p>05.03.85</p> Signup and view all the answers

    What is the maximum allowable abbrand for the contact piece made of Wolfram?

    <p>4 mm</p> Signup and view all the answers

    Which statement is true regarding the supply of parts?

    <p>Supplies vary based on sector requirements.</p> Signup and view all the answers

    The contact piece is made of copper.

    <p>False</p> Signup and view all the answers

    The flexible line set M __________ is scheduled for replacement every 150,000.

    <p>Dreieck</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Wählerkupplung = Selector coupling DHK-Bolzen = Durable main contact pin Sicherungsblech = Safety plate Schaltdreieck = Switching triangle</p> Signup and view all the answers

    What is the minimum measurement for the excenternocke for OLTC Type M until the delivery date of 31.03.2001?

    <p>24 mm</p> Signup and view all the answers

    What should be measured to check the excenternocke condition?

    <p>Length X</p> Signup and view all the answers

    What is the required measurement for the excenternocke for OLTC Type M starting from the delivery date of 01.04.2001?

    <p>26.5 mm</p> Signup and view all the answers

    What is the acceptable offset between the upper edge of the excenternocke and the upper edge of the pressure roll?

    <p>± 0.3 mm</p> Signup and view all the answers

    Which of the following actions should be taken if the measured deflection is less than 1.3 mm?

    <p>Install longer DHK contact bolts during the next maintenance</p> Signup and view all the answers

    What should be documented in the service report regarding deflection?

    <p>All of the above</p> Signup and view all the answers

    What should be checked at the upper gear stage during maintenance?

    <p>Fixing seat check</p> Signup and view all the answers

    What is the general inspection for the energy storage unit?

    <p>Inspection for abnormalities</p> Signup and view all the answers

    The resting stroke must be at least 1 mm.

    <p>True</p> Signup and view all the answers

    What should be done before removing the load level switch cover?

    <p>Ensure voltage-free condition of the switching supervision</p> Signup and view all the answers

    What must be documented in the service report?

    <p>Results of the inspection of shield rings</p> Signup and view all the answers

    The maximum wear on the block must be ≤ ______ mm.

    <p>0.6</p> Signup and view all the answers

    Big shield rings must be inspected at every maintenance.

    <p>True</p> Signup and view all the answers

    What is the required measurement for the coupling when adjusting the resting stroke?

    <p>93 mm</p> Signup and view all the answers

    The tightening torque for the M10 x 289 bolt is ______ Nm.

    <p>15</p> Signup and view all the answers

    What is the purpose of measuring the recess stroke?

    <p>To ensure proper function of the device</p> Signup and view all the answers

    What should be measured at both sides of the load switching device?

    <p>Residual stroke</p> Signup and view all the answers

    The bolts used during coupling must be checked at every maintenance.

    <p>True</p> Signup and view all the answers

    The required thickness of the coating must be between ___ mm and ___ mm.

    <p>0.7, 2.2</p> Signup and view all the answers

    What must be done if the coating measure is outside the required values?

    <p>The coating must be adjusted by replacing the pressure rollers.</p> Signup and view all the answers

    What is the minimum outer diameter for the guide rods?

    <p>13.5 mm</p> Signup and view all the answers

    The inner diameter of the bushings should be greater than 10.5 mm.

    <p>False</p> Signup and view all the answers

    What should be used to measure the distance between the latch and the switch crank?

    <p>Feeler gauge</p> Signup and view all the answers

    What is the required distance from the upper edge of the roller to the lower edge of the rivet?

    <p>2.0 mm</p> Signup and view all the answers

    What must the top edge of the eccentric cam be in relation to the top edge of the pressure roller?

    <p>0 – 1.0 mm lower</p> Signup and view all the answers

    What should be observed when replacing the pressure rollers?

    <p>The pressure device must not be blocked in both switching directions.</p> Signup and view all the answers

    What is the further procedure if the overlap measured is ≥ 1.0 mm?

    <p>No measures necessary</p> Signup and view all the answers

    What should be done when the overlap is between 1.0 mm and 0.5 mm?

    <p>Replace guiding plate at the next maintenance</p> Signup and view all the answers

    What further procedure is required if the overlap is < 0.5 mm?

    <p>Only limited operational release for max. 6 months</p> Signup and view all the answers

    What is the further action required if there is 1 loose bushing?

    <p>No measures necessary</p> Signup and view all the answers

    What should be done if there are 2 loose bushings in the same sector?

    <p>Replace guiding plate at the next maintenance</p> Signup and view all the answers

    What should be done if there are more than 2 loose bushings in the same sector?

    <p>Only limited operational release for max. 6 months</p> Signup and view all the answers

    What is the procedure for checking for cracks in the bushing area?

    <p>Ensure that no cracked parts can break off from the guiding plates and check if bushed are loose.</p> Signup and view all the answers

    The provided instructions can be ignored if one is experienced.

    <p>False</p> Signup and view all the answers

    What are the potential consequences of not following safety guidelines during work?

    <p>Personal injuries</p> Signup and view all the answers

    The instruction manual requires knowledge corresponding to a training at MR for _____ on the switch.

    <p>maintenance</p> Signup and view all the answers

    What is the date of the document regarding replacement parts?

    <p>21.07.2023</p> Signup and view all the answers

    Which item is required for the Stufenschalter type M?

    <p>Both A and B</p> Signup and view all the answers

    Match the following parts with their corresponding identifiers:

    <p>Vent Screw = 401823:00 Energy storage spring = 550070:04 Hexagon screw M10x35 = 785260:00 Cover gasket for MRM = 715361:00</p> Signup and view all the answers

    Which of the following is an item included in the spare parts for the M 500/600?

    <p>Contact piece (Wolfram)</p> Signup and view all the answers

    The contact piece has a maximum burn-off of 2 mm.

    <p>False</p> Signup and view all the answers

    What is the significance of protecting the components with shielding plates?

    <p>To prevent electrical interference and ensure proper function.</p> Signup and view all the answers

    The contact piece for M(S) 300 consists of _____ pieces.

    <p>16</p> Signup and view all the answers

    Match the following items with their descriptions:

    <p>Wählerkupplung 15° links = Selector coupling 15° left Stromband für Kontaktschale = Current band for contact tray Flexible Leitung Set M Dreieck = Flexible cable set for triangle Abisoliergerät = Stripping tool</p> Signup and view all the answers

    What should be prepared for the exchange of guide plates for switches made before 2002?

    <p>Specific materials including lead plates, distance tubes, and screws.</p> Signup and view all the answers

    What is the recommended maximum wear on the block during maintenance?

    <p>0.6 mm</p> Signup and view all the answers

    What must be checked regarding the fastening screws during maintenance?

    <p>The fastening of the switching and auxiliary contacts.</p> Signup and view all the answers

    What is the required tightening torque for fastening screws of movable switching and auxiliary contacts?

    <p>20 Nm</p> Signup and view all the answers

    The maximum impermissible play for the bushings in the pull-in slide is 1 mm.

    <p>False</p> Signup and view all the answers

    Which components must be checked for a proper fit and break during maintenance?

    <p>All of the above</p> Signup and view all the answers

    What is the required range for the rest stroke during maintenance?

    <p>1.5 – 4.0 mm</p> Signup and view all the answers

    The tightening torque for the tension bolt M10 x 289 is _____ Nm.

    <p>15</p> Signup and view all the answers

    What should be ensured before removing the last stage switch cover?

    <p>That the electrical voltage is off.</p> Signup and view all the answers

    What must be checked regarding the energy storage components?

    <p>Fit and break of the tension pin and the pre-stress spring bolt.</p> Signup and view all the answers

    What flaw must be documented if it occurs during maintenance inspections?

    <p>All of the above</p> Signup and view all the answers

    What should be the role of the technician regarding the large shielding rings during maintenance?

    <p>Verify and document the condition of the large shielding rings.</p> Signup and view all the answers

    What is the minimum required length of the eccentric cam (Maß X) for OLTC type M until delivery date 31.03.2001?

    <p>24 mm</p> Signup and view all the answers

    What should the length of the eccentric cam (Maß X) be for OLTC type M after the delivery date of 01.04.2001?

    <p>26.5 mm</p> Signup and view all the answers

    What is the maximum offset allowable between the top edge of the eccentric cam and the top edge of the pressure roller?

    <p>± 0.3 mm</p> Signup and view all the answers

    What further measures should be taken if the deflection (Durchfederung) is less than 1.3 mm?

    <p>Install longer DHK contact bolts at next maintenance</p> Signup and view all the answers

    What actions should be taken if the deflection is less than 0.5 mm?

    <p>Approval for restricted operation</p> Signup and view all the answers

    What is the required measurement procedure for measuring the deflection of the DHK?

    <p>Measure the distance between the contact shell and pressure plate for both engaged and disengaged DHK.</p> Signup and view all the answers

    What is the material number for the exchange contact blade for DHK type M500/600?

    <p>736768:xx</p> Signup and view all the answers

    Match the following DHK actions with their conditions:

    <p>0 damaged current bands = No actions necessary ≥ 1 damaged current band = Replace movable DHK at next maintenance ≥ 5 damaged current bands = Replace movable DHK within 10,000 switches or 6 months ≥ 10 damaged current bands = Approval for restricted operation with maximum limits</p> Signup and view all the answers

    The _____ must be installed for restricted operation when the deflection is less than 0.5 mm.

    <p>maximum current limit of 350 A</p> Signup and view all the answers

    What is the overlap measurement in mm for no necessary actions?

    <p>≥ 1.0</p> Signup and view all the answers

    What action should be taken if the overlap is between 1.0 and 0.5 mm?

    <p>Replace the guiding plate at the next maintenance</p> Signup and view all the answers

    If the overlap is less than 0.5 mm, what is the recommended action?

    <p>Only limited operational permission for a maximum of 6 months</p> Signup and view all the answers

    It is unnecessary to take action if there is one loose bushing.

    <p>True</p> Signup and view all the answers

    What should be done if there are two loose bushings in the same sector?

    <p>Replace the guiding plate at the next maintenance</p> Signup and view all the answers

    What should you do if there are more than two loose bushings in the same sector?

    <p>Only limited operational permission for a maximum of 6 months</p> Signup and view all the answers

    What is the first check to perform if cracks are found in the threaded bushings?

    <p>Ensure that no cracked parts from the guiding plates can break off.</p> Signup and view all the answers

    What should be used to check if threaded bushings are loose?

    <p>A suitable M6 screw.</p> Signup and view all the answers

    The required overlay must be between _____ mm and _____ mm.

    <p>0.7, 2.2</p> Signup and view all the answers

    What is the minimum outer diameter for guide rods?

    <p>13.5 mm</p> Signup and view all the answers

    What is the maximum inner diameter for the bushings?

    <p>14.5 mm</p> Signup and view all the answers

    The overlay measurement can be adjusted by using different diameters of pressure rolls.

    <p>True</p> Signup and view all the answers

    What should be done if the overlay measurement is not within specified limits?

    <p>Replace the guide rods and bushings.</p> Signup and view all the answers

    What should the distance between the pin and switch arm be measured with?

    <p>Feeler gauge</p> Signup and view all the answers

    What will happen if the specified overlay is not achievable by replacing the pressure rolls?

    <p>Renew the guide rods and bushings.</p> Signup and view all the answers

    What color should bushings be according to the delivery date between 01.04.2001 and 31.10.2006?

    <p>Gold</p> Signup and view all the answers

    How often should the pressure rolls be renewed?

    <p>At each maintenance</p> Signup and view all the answers

    The distance from the upper edge of the roller to the lower edge of the rivet must be at least _____ mm.

    <p>2.0</p> Signup and view all the answers

    For delivery after 01.11.2006, the roller diameter must be provided as a _____ mm measurement.

    <p>18.0</p> Signup and view all the answers

    Parts from different versions of pressure devices can be combined.

    <p>False</p> Signup and view all the answers

    It is safe for unqualified personnel to perform the maintenance work on the Laststufenschalter.

    <p>False</p> Signup and view all the answers

    Which of the following must be heeded before beginning work on the Laststufenschalter?

    <p>Technical documentation</p> Signup and view all the answers

    What is essential to read completely before starting maintenance on the Laststufenschalter?

    <p>This manual</p> Signup and view all the answers

    What is the purpose of the 'Entlüftungsschraube' in the parts list?

    <p>To allow gas or air to escape</p> Signup and view all the answers

    What type of seal is used between the Stufenschalter head and oil vessel flange?

    <p>Flachdichtung</p> Signup and view all the answers

    Which of the following items is listed as a spare part for the Stufenschalter?

    <p>All of the above</p> Signup and view all the answers

    What is the start date for the Reedkontakt?

    <p>05.03.85</p> Signup and view all the answers

    What is the protection tube for the M500 / 600?

    <p>Schutzschlauch</p> Signup and view all the answers

    What type of contact is used for the M(S) 300 / 350?

    <p>Kontaktdoppellitze</p> Signup and view all the answers

    What materials are the contact pieces made from?

    <p>Wolfram</p> Signup and view all the answers

    What is the maximum burn-off length for the Wolfram contact piece?

    <p>4mm</p> Signup and view all the answers

    Which of the following components is included in the reserve contact set for M I 301/351?

    <p>Litzen mit Schlauch</p> Signup and view all the answers

    The Gießharzkontaktschale has been in use since 1975.

    <p>True</p> Signup and view all the answers

    The part number for the 1 Satz Kontaktträger M500 is ______.

    <p>092689:09</p> Signup and view all the answers

    What is the noted lifespan of a new contact shell?

    <p>370,000</p> Signup and view all the answers

    Match the following components to their specifications:

    <p>M500 = Protection tube since 04/89 M(S) 300 / 350 = Contact double wire Wolfram contact piece = Max burn-off 4mm Flexible Leitung = Replacement every 800,000 operations</p> Signup and view all the answers

    What is required for switching leading plates for switches made before 2002?

    <p>AEM (24807)</p> Signup and view all the answers

    What is the required range for the overhang measurement?

    <p>≥ 0.7 mm and ≤ 2.2 mm</p> Signup and view all the answers

    Which of the following dimensions are required for the outer diameter of guide rods? (Select all that apply)

    <p>≥ 13.5 mm</p> Signup and view all the answers

    Which components need to be renewed if the desired overhang measurement is not achievable? (Select all that apply)

    <p>Bushings</p> Signup and view all the answers

    Excenternocke and adjustable rollers can be combined regardless of construction versions if they fit dimensionally.

    <p>False</p> Signup and view all the answers

    What must be checked if the measurement of the distance from the upper edge of the roller to the lower edge of the rivet on the winding sled does not meet the requirement?

    <p>Contact the responsible OPS immediately.</p> Signup and view all the answers

    The height of the Excenternocke should be ___ mm lower than the upper edge of the adjustable roller.

    <p>0 to 1.0</p> Signup and view all the answers

    What must be done when exchanging adjustable rollers?

    <p>Adjust the Excenternocke to ensure proper movement.</p> Signup and view all the answers

    Match the following parts with their required values:

    <p>Outer diameter of guide rods = ≥ 13.5 mm Inner diameter of bushings = ≤ 10.5 mm Overhang measurement = ≥ 0.7 mm and ≤ 2.2 mm Outer diameter of sprung sled = ≥ 9.5 mm</p> Signup and view all the answers

    What should be done when the overlap between the arc chamber and the groove of the lower guiding plate is equal to 1.0 mm or greater?

    <p>No action necessary</p> Signup and view all the answers

    What action should be taken if the overlap is less than 0.5 mm?

    <p>Restricted operational release for max. 6 months</p> Signup and view all the answers

    How many loose bushings require replacement of the guiding plate during the next maintenance?

    <p>2 loose bushings in the same sector</p> Signup and view all the answers

    If there is one loose bushing, no measures are necessary.

    <p>True</p> Signup and view all the answers

    The recommended action for more than 2 loose bushings in the same sector is _____ for a maximum of 6 months.

    <p>restricted operational release</p> Signup and view all the answers

    What should you ensure if cracks are present in the area of the threaded bushings?

    <p>Ensure that no cracked parts can break off from the guiding plates.</p> Signup and view all the answers

    Match the following criteria with their recommended actions:

    <p>Overlap ≥ 1.0 mm = No action necessary Overlap 1.0 &gt; x ≥ 0.5 = Replace guiding plate during next maintenance Overlap &lt; 0.5 mm = Restricted operational release for max. 6 months 1 loose bushing = No action necessary 2 loose bushings in same sector = Replace guiding plate during next maintenance</p> <blockquote> <p>2 loose bushings in same sector = Restricted operational release for max. 6 months</p> </blockquote> Signup and view all the answers

    What should be checked for the upper gear stage during maintenance?

    <p>Check for tightness.</p> Signup and view all the answers

    What are the general checks for energy storage?

    <p>All of the above</p> Signup and view all the answers

    It is necessary to ensure voltage-free conditions before removing the load tap switch cover.

    <p>True</p> Signup and view all the answers

    The residual stroke must be at least _____ during maintenance.

    <p>1 mm</p> Signup and view all the answers

    What is the maximum wear on the block allowed during maintenance?

    <p>0.6 mm</p> Signup and view all the answers

    Which of the following requires inspection at every maintenance?

    <p>All of the above</p> Signup and view all the answers

    What dimensions should the upper gear stage pin bearing have?

    <p>Shall be positioned centered, no excessive wear.</p> Signup and view all the answers

    Ensure the fastening of the switching and auxiliary contacts is _____ during maintenance.

    <p>tight</p> Signup and view all the answers

    What must be documented in the service report during maintenance?

    <p>All of the above</p> Signup and view all the answers

    Match the maintenance tasks with their corresponding requirements:

    <p>Check for tightness = Upper gear stage Inspect for wear = Bushing in spring slide Ensure voltage-free condition = Before removing switch cover Measure residual stroke = At both sides of the unit</p> Signup and view all the answers

    What is the minimum measure X for OLTC Type M with the pushing device until the delivery date of 31.03.2001?

    <p>24 mm</p> Signup and view all the answers

    What is the minimum measure X for OLTC Type M after the delivery date of 01.04.2001?

    <p>26.5 mm</p> Signup and view all the answers

    What is the acceptable offset between the top edge of the excenter cam and the top edge of the pushing roller?

    <p>≤ ± 0.3 mm</p> Signup and view all the answers

    To adjust the height of the excenter, you can add or remove ________ under and above the excenter.

    <p>spacers</p> Signup and view all the answers

    If the spring deflection is less than 1.3 mm, what additional measures should be followed?

    <p>Limited operation release</p> Signup and view all the answers

    What should be documented in the service report about the minimum spring deflection?

    <p>The lowest spring deflection</p> Signup and view all the answers

    What material is needed for the renewal of fasteners for the lead contact housing?

    <p>Material 736768:xx</p> Signup and view all the answers

    Match the inspections to their required actions:

    <p>Spring deflection &lt; 1.3 mm = Follow the provided table for further actions 0 damaged conductors = No actions necessary ≥ 1 damaged conductor = Replace movable DHK during next maintenance ≥ 10 damaged conductors = Release for limited operation with restrictions</p> Signup and view all the answers

    Study Notes

    Introduction

    • Emphasizes the risk of personal injury, damages, or functional failures due to insufficiently trained personnel.
    • Stresses the importance of adhering to safety, hazard, and operational guidelines specific to the MR control switch type.
    • Requires complete reading of the instruction manual before commencing work.
    • Assumes prior training from MR on maintenance tasks for the specified load step switch type.

    Spare Parts for Step Switches

    • A detailed parts list is provided with specific items categorized under Type M.
    • Each entry includes a description, part number, quantity, and additional remarks.

    Key Spare Parts and Their Specifications

    • Vent Screw: 1 piece, part number 401823:00.
    • Pressure Relief Valve: 1 piece, part number 090373:02; retrofitting possible starting from 11/84.
    • Plyamid Gaskets: Various types listed with specific part numbers for different applications.
    • O-Rings: Essential for sealing, with multiple options based on size and application introduced from July 1993.
    • Storage Springs: Different specifications for varying sectors, with force values ranging from 221N to 577N depending on configuration.

    Assembly Components

    • Sliding Components: Include items like spring slides and drive shafts, with specific tolerances noted for optimal operation.
    • Mounting and Connection: Include O-rings for joins, flanges, and potted components, ensuring secure electrical connections.

    Maintenance and Inspection Kits

    • An assortment of small parts for switch inspection and repair is acknowledged for proper maintenance protocol.
    • Recommendations for specific kits structured by model variations (M, MD).

    Miscellaneous Components

    • Adapts to industry standards (DIN 34) preserving all rights for technical documentation.
    • Replacement contact wires with note on operational longevity and recommendations for service.

    Final Notes

    • Warranty terms are influenced by proper usage and installation.
    • The instruction emphasizes the importance of recognizing when parts should be replaced or upgraded based on manufacturing dates and designs.### Replacement Parts for Step Switches
    • Contact Piece (Tungsten) compatible with M 500, max erosion of 4mm, 1 set consists of 16 pieces.
    • Contact Piece (Copper) compatible with M (S) 300, 1 set consists of 16 pieces.
    • Set of contact carriers M500 and M300, each set consists of 1 sector and made with a tab, valid till 11.12.95.
    • Contact rail consists of 2 pieces (1 set) designed for 3 sectors.

    Components and Sectors

    • Replacement parts include screws, disc springs, and securing plates, all necessary for contact changes.
    • Set includes shielding plates and cover plates, differing between M300/350 and M500/600 types, with 3 sets required for 3 sectors.
    • Resin contact bowl introduced for service in 1975; contact shells for M-D require replacement after specific use cycles.

    Wiring and Connectors

    • Flexible leads for M350/500 are changed every 800,000 cycles and must have crimp connections without busbars.
    • Long flexible leads and connection cables included in the assembly, requiring replacement based on operational cycles.
    • The reserve contacts set for models M I 301/351 consists of both copper and tungsten options with associated wiring components.

    Maintenance and Inspections

    • Regular maintenance is crucial for equipment longevity; includes both visual inspections and detailed checks of wear.
    • Specific inspections include checking bearing tightness, energy storage system components, switch segments, and general condition reviews.
    • Ensure voltage is disconnected before any inspections or maintenance procedures.

    Special Instructions and Tools

    • Detailed instructions for replacing guide plates for switches manufactured before 2002.
    • Important tools include drill templates, stripping tools, and crimping pliers for effective component replacement.
    • Essential documentation stresses secure practices, especially regarding voltage safety during alterations to switch components.

    Final Notes

    • Adhere to DIN regulations concerning technical documentation and rights preservation.
    • Safety warnings emphasize assessing for electrical hazards, particularly before accessing or modifying electrical devices.### Voltage-Free Status Verification Before Removing Cover
    • Ensure voltage-free status by measuring at all six terminal connections against ground potential (chassis) using a digital multimeter in AC and DC modes.
    • Open the cover of the terminal box by loosening four screws.

    Maintenance of Shield Rings (for > 170 kV)

    • Check shield rings during every maintenance session and document findings in the service report.
    • Large shield rings are used in load changeover applications with a minimum of > 123 kV insulation distance.
    • Inspect attachment points for damages like cracks or breaks, and report any findings with photographs to specified email.

    Marking and Installing Guide Rods

    • Mark the guide rods of the spring and tension sleds using a center punch on the side A of the load switch insert.
    • Apply identical markings at the energy storage housing height consistent with the guide rods.
    • Reinstall guide rods in the exact position and orientation during reassembly.

    Wear and Play Measurement for Guide Rods and Bushings

    • Measure wear and play in guide rods and bushings using calipers; record values in the service report.
    • Established diameter threshold values:
      • Outer diameter of guide rods must be ≥ 13.5 mm (energy storage) and ≥ 9.5 mm (tension sled).
      • Inner diameter of bushings must be ≤ 14.5 mm (tension sled) and ≤ 10.5 mm (spring sled).
    • Maximum play allowed in bushings and guide rods is 1 mm.

    Special Note on Bushings

    • Bushings labeled with Tenifer 5 (dark silver-gray) installed in spring sleds between 01.12.1998 and 10.05.2001 must be replaced during every maintenance.
    • Bushings delivered beyond this period should only be replaced if they exceed the specified wear limits.

    Setting the Remaining Stroke

    • Measure the remaining stroke on both sides using calipers; it must be at least 1 mm.
    • Process involves turning the drive shaft until the trigger fits the latch, without activating the latch.

    Measuring Block Wear

    • Maximum wear at the block must not exceed 0.6 mm, determined by comparing reference measures.
    • For OILTAP® R, RM, and T types, the greatest wear from both sides should be assessed regardless of operation mode.

    Overrun Measurement for OILTAP® M

    • Overrun should be maintained between 0.7 mm and 2.2 mm; adjust by replacing pressure rollers if outside of the required range.
    • Ensure correct positioning and adjustments through specified tooling during measurement.

    Special Tools for Overrun Measurement

    • Tools needed include:
      • Feeler gauge (Material number: 110510:75)
      • Adjustment device (Material number: 63079700)

    General Maintenance Guidelines

    • If adjusting overrun does not meet target after roller replacement, prioritize replacing guide rods and bushings to minimize play before recalibrating with suitable rollers.
    • Document all measurements and installations meticulously for maintenance records.

    Introduction

    • Emphasizes the risk of personal injury, damages, or functional failures due to insufficiently trained personnel.
    • Stresses the importance of adhering to safety, hazard, and operational guidelines specific to the MR control switch type.
    • Requires complete reading of the instruction manual before commencing work.
    • Assumes prior training from MR on maintenance tasks for the specified load step switch type.

    Spare Parts for Step Switches

    • A detailed parts list is provided with specific items categorized under Type M.
    • Each entry includes a description, part number, quantity, and additional remarks.

    Key Spare Parts and Their Specifications

    • Vent Screw: 1 piece, part number 401823:00.
    • Pressure Relief Valve: 1 piece, part number 090373:02; retrofitting possible starting from 11/84.
    • Plyamid Gaskets: Various types listed with specific part numbers for different applications.
    • O-Rings: Essential for sealing, with multiple options based on size and application introduced from July 1993.
    • Storage Springs: Different specifications for varying sectors, with force values ranging from 221N to 577N depending on configuration.

    Assembly Components

    • Sliding Components: Include items like spring slides and drive shafts, with specific tolerances noted for optimal operation.
    • Mounting and Connection: Include O-rings for joins, flanges, and potted components, ensuring secure electrical connections.

    Maintenance and Inspection Kits

    • An assortment of small parts for switch inspection and repair is acknowledged for proper maintenance protocol.
    • Recommendations for specific kits structured by model variations (M, MD).

    Miscellaneous Components

    • Adapts to industry standards (DIN 34) preserving all rights for technical documentation.
    • Replacement contact wires with note on operational longevity and recommendations for service.

    Final Notes

    • Warranty terms are influenced by proper usage and installation.
    • The instruction emphasizes the importance of recognizing when parts should be replaced or upgraded based on manufacturing dates and designs.### Replacement Parts for Step Switches
    • Contact Piece (Tungsten) compatible with M 500, max erosion of 4mm, 1 set consists of 16 pieces.
    • Contact Piece (Copper) compatible with M (S) 300, 1 set consists of 16 pieces.
    • Set of contact carriers M500 and M300, each set consists of 1 sector and made with a tab, valid till 11.12.95.
    • Contact rail consists of 2 pieces (1 set) designed for 3 sectors.

    Components and Sectors

    • Replacement parts include screws, disc springs, and securing plates, all necessary for contact changes.
    • Set includes shielding plates and cover plates, differing between M300/350 and M500/600 types, with 3 sets required for 3 sectors.
    • Resin contact bowl introduced for service in 1975; contact shells for M-D require replacement after specific use cycles.

    Wiring and Connectors

    • Flexible leads for M350/500 are changed every 800,000 cycles and must have crimp connections without busbars.
    • Long flexible leads and connection cables included in the assembly, requiring replacement based on operational cycles.
    • The reserve contacts set for models M I 301/351 consists of both copper and tungsten options with associated wiring components.

    Maintenance and Inspections

    • Regular maintenance is crucial for equipment longevity; includes both visual inspections and detailed checks of wear.
    • Specific inspections include checking bearing tightness, energy storage system components, switch segments, and general condition reviews.
    • Ensure voltage is disconnected before any inspections or maintenance procedures.

    Special Instructions and Tools

    • Detailed instructions for replacing guide plates for switches manufactured before 2002.
    • Important tools include drill templates, stripping tools, and crimping pliers for effective component replacement.
    • Essential documentation stresses secure practices, especially regarding voltage safety during alterations to switch components.

    Final Notes

    • Adhere to DIN regulations concerning technical documentation and rights preservation.
    • Safety warnings emphasize assessing for electrical hazards, particularly before accessing or modifying electrical devices.### Voltage-Free Status Verification Before Removing Cover
    • Ensure voltage-free status by measuring at all six terminal connections against ground potential (chassis) using a digital multimeter in AC and DC modes.
    • Open the cover of the terminal box by loosening four screws.

    Maintenance of Shield Rings (for > 170 kV)

    • Check shield rings during every maintenance session and document findings in the service report.
    • Large shield rings are used in load changeover applications with a minimum of > 123 kV insulation distance.
    • Inspect attachment points for damages like cracks or breaks, and report any findings with photographs to specified email.

    Marking and Installing Guide Rods

    • Mark the guide rods of the spring and tension sleds using a center punch on the side A of the load switch insert.
    • Apply identical markings at the energy storage housing height consistent with the guide rods.
    • Reinstall guide rods in the exact position and orientation during reassembly.

    Wear and Play Measurement for Guide Rods and Bushings

    • Measure wear and play in guide rods and bushings using calipers; record values in the service report.
    • Established diameter threshold values:
      • Outer diameter of guide rods must be ≥ 13.5 mm (energy storage) and ≥ 9.5 mm (tension sled).
      • Inner diameter of bushings must be ≤ 14.5 mm (tension sled) and ≤ 10.5 mm (spring sled).
    • Maximum play allowed in bushings and guide rods is 1 mm.

    Special Note on Bushings

    • Bushings labeled with Tenifer 5 (dark silver-gray) installed in spring sleds between 01.12.1998 and 10.05.2001 must be replaced during every maintenance.
    • Bushings delivered beyond this period should only be replaced if they exceed the specified wear limits.

    Setting the Remaining Stroke

    • Measure the remaining stroke on both sides using calipers; it must be at least 1 mm.
    • Process involves turning the drive shaft until the trigger fits the latch, without activating the latch.

    Measuring Block Wear

    • Maximum wear at the block must not exceed 0.6 mm, determined by comparing reference measures.
    • For OILTAP® R, RM, and T types, the greatest wear from both sides should be assessed regardless of operation mode.

    Overrun Measurement for OILTAP® M

    • Overrun should be maintained between 0.7 mm and 2.2 mm; adjust by replacing pressure rollers if outside of the required range.
    • Ensure correct positioning and adjustments through specified tooling during measurement.

    Special Tools for Overrun Measurement

    • Tools needed include:
      • Feeler gauge (Material number: 110510:75)
      • Adjustment device (Material number: 63079700)

    General Maintenance Guidelines

    • If adjusting overrun does not meet target after roller replacement, prioritize replacing guide rods and bushings to minimize play before recalibrating with suitable rollers.
    • Document all measurements and installations meticulously for maintenance records.

    Introduction

    • Emphasizes the risk of personal injury, damages, or functional failures due to insufficiently trained personnel.
    • Stresses the importance of adhering to safety, hazard, and operational guidelines specific to the MR control switch type.
    • Requires complete reading of the instruction manual before commencing work.
    • Assumes prior training from MR on maintenance tasks for the specified load step switch type.

    Spare Parts for Step Switches

    • A detailed parts list is provided with specific items categorized under Type M.
    • Each entry includes a description, part number, quantity, and additional remarks.

    Key Spare Parts and Their Specifications

    • Vent Screw: 1 piece, part number 401823:00.
    • Pressure Relief Valve: 1 piece, part number 090373:02; retrofitting possible starting from 11/84.
    • Plyamid Gaskets: Various types listed with specific part numbers for different applications.
    • O-Rings: Essential for sealing, with multiple options based on size and application introduced from July 1993.
    • Storage Springs: Different specifications for varying sectors, with force values ranging from 221N to 577N depending on configuration.

    Assembly Components

    • Sliding Components: Include items like spring slides and drive shafts, with specific tolerances noted for optimal operation.
    • Mounting and Connection: Include O-rings for joins, flanges, and potted components, ensuring secure electrical connections.

    Maintenance and Inspection Kits

    • An assortment of small parts for switch inspection and repair is acknowledged for proper maintenance protocol.
    • Recommendations for specific kits structured by model variations (M, MD).

    Miscellaneous Components

    • Adapts to industry standards (DIN 34) preserving all rights for technical documentation.
    • Replacement contact wires with note on operational longevity and recommendations for service.

    Final Notes

    • Warranty terms are influenced by proper usage and installation.
    • The instruction emphasizes the importance of recognizing when parts should be replaced or upgraded based on manufacturing dates and designs.### Replacement Parts for Step Switches
    • Contact Piece (Tungsten) compatible with M 500, max erosion of 4mm, 1 set consists of 16 pieces.
    • Contact Piece (Copper) compatible with M (S) 300, 1 set consists of 16 pieces.
    • Set of contact carriers M500 and M300, each set consists of 1 sector and made with a tab, valid till 11.12.95.
    • Contact rail consists of 2 pieces (1 set) designed for 3 sectors.

    Components and Sectors

    • Replacement parts include screws, disc springs, and securing plates, all necessary for contact changes.
    • Set includes shielding plates and cover plates, differing between M300/350 and M500/600 types, with 3 sets required for 3 sectors.
    • Resin contact bowl introduced for service in 1975; contact shells for M-D require replacement after specific use cycles.

    Wiring and Connectors

    • Flexible leads for M350/500 are changed every 800,000 cycles and must have crimp connections without busbars.
    • Long flexible leads and connection cables included in the assembly, requiring replacement based on operational cycles.
    • The reserve contacts set for models M I 301/351 consists of both copper and tungsten options with associated wiring components.

    Maintenance and Inspections

    • Regular maintenance is crucial for equipment longevity; includes both visual inspections and detailed checks of wear.
    • Specific inspections include checking bearing tightness, energy storage system components, switch segments, and general condition reviews.
    • Ensure voltage is disconnected before any inspections or maintenance procedures.

    Special Instructions and Tools

    • Detailed instructions for replacing guide plates for switches manufactured before 2002.
    • Important tools include drill templates, stripping tools, and crimping pliers for effective component replacement.
    • Essential documentation stresses secure practices, especially regarding voltage safety during alterations to switch components.

    Final Notes

    • Adhere to DIN regulations concerning technical documentation and rights preservation.
    • Safety warnings emphasize assessing for electrical hazards, particularly before accessing or modifying electrical devices.### Voltage-Free Status Verification Before Removing Cover
    • Ensure voltage-free status by measuring at all six terminal connections against ground potential (chassis) using a digital multimeter in AC and DC modes.
    • Open the cover of the terminal box by loosening four screws.

    Maintenance of Shield Rings (for > 170 kV)

    • Check shield rings during every maintenance session and document findings in the service report.
    • Large shield rings are used in load changeover applications with a minimum of > 123 kV insulation distance.
    • Inspect attachment points for damages like cracks or breaks, and report any findings with photographs to specified email.

    Marking and Installing Guide Rods

    • Mark the guide rods of the spring and tension sleds using a center punch on the side A of the load switch insert.
    • Apply identical markings at the energy storage housing height consistent with the guide rods.
    • Reinstall guide rods in the exact position and orientation during reassembly.

    Wear and Play Measurement for Guide Rods and Bushings

    • Measure wear and play in guide rods and bushings using calipers; record values in the service report.
    • Established diameter threshold values:
      • Outer diameter of guide rods must be ≥ 13.5 mm (energy storage) and ≥ 9.5 mm (tension sled).
      • Inner diameter of bushings must be ≤ 14.5 mm (tension sled) and ≤ 10.5 mm (spring sled).
    • Maximum play allowed in bushings and guide rods is 1 mm.

    Special Note on Bushings

    • Bushings labeled with Tenifer 5 (dark silver-gray) installed in spring sleds between 01.12.1998 and 10.05.2001 must be replaced during every maintenance.
    • Bushings delivered beyond this period should only be replaced if they exceed the specified wear limits.

    Setting the Remaining Stroke

    • Measure the remaining stroke on both sides using calipers; it must be at least 1 mm.
    • Process involves turning the drive shaft until the trigger fits the latch, without activating the latch.

    Measuring Block Wear

    • Maximum wear at the block must not exceed 0.6 mm, determined by comparing reference measures.
    • For OILTAP® R, RM, and T types, the greatest wear from both sides should be assessed regardless of operation mode.

    Overrun Measurement for OILTAP® M

    • Overrun should be maintained between 0.7 mm and 2.2 mm; adjust by replacing pressure rollers if outside of the required range.
    • Ensure correct positioning and adjustments through specified tooling during measurement.

    Special Tools for Overrun Measurement

    • Tools needed include:
      • Feeler gauge (Material number: 110510:75)
      • Adjustment device (Material number: 63079700)

    General Maintenance Guidelines

    • If adjusting overrun does not meet target after roller replacement, prioritize replacing guide rods and bushings to minimize play before recalibrating with suitable rollers.
    • Document all measurements and installations meticulously for maintenance records.

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    Description

    This quiz focuses on the crucial safety guidelines and warnings provided in the introduction section. Understanding these guidelines is essential for preventing personal injuries and damages during operations. Participants will learn about the importance of following safety protocols and the risks involved with neglecting them.

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