Siemens FLENDER K SH Series Assembly And Operating Instructions Manual

Crane gear unit
Table of Contents

Advertisement

Quick Links

Crane gear unit
K.SH, K.SM, K.VH, K.HH, K.KH,
K.DH, K.HM, K.KM, K.DM
Sizes 15 to 24
and sizes 115 to 124
Assembly and operating instructions
BA 5846 en 05/2015
FLENDER gear units

Advertisement

Table of Contents
loading

Summary of Contents for Siemens FLENDER K SH Series

  • Page 1 Crane gear unit K.SH, K.SM, K.VH, K.HH, K.KH, K.DH, K.HM, K.KM, K.DM Sizes 15 to 24 and sizes 115 to 124 Assembly and operating instructions BA 5846 en 05/2015 FLENDER gear units...
  • Page 2 Technical data Crane gear unit General notes Safety instructions K.SH, K.SM, K.VH, K.HH, K.KH, K.DH, K.HM, K.KM, K.DM Transport and Sizes 15 to 24 storage and sizes 115 to 124 Technical description Assembly and operating instructions Fitting Translation of the original assembly and operating instructions Start­up Operation Faults, causes...
  • Page 3 All designations to which the registered industrial property mark ® is appended are registered trademarks of Siemens AG. Other designations used in this document may be trademarks the use of which by third parties for their own purposes may infringe holders’ rights.
  • Page 4 Foreword The term "Assembly and operating instructions" will in the following also be shortened to "instructions" or "manual". Symbols in these assembly and operating instructions This symbol additionally indicates an imminent risk of explosion in the meaning of Directive 94/9/EC. This symbol additionally indicates an imminent risk of burns due to hot surfaces in the meaning of standard "DIN EN ISO 13732­1".
  • Page 5: Table Of Contents

    Contents Technical data ........... . . General technical data .
  • Page 6 Couplings, clutches ..............5.9.1 Shrink disk .
  • Page 7 Couplings, clutches ..............Fitting the torque arm for the gear­unit housing .
  • Page 8 Maintenance and repair ..........10.1 General notes on maintenance .
  • Page 9: Technical Data

    Technical data General technical data The most important technical data are shown on the rating plate. These data and the contractual agreements between Siemens and the customer for the gear unit determine the limits of its correct use. ① ②...
  • Page 10: Marking Of The Gear Unit Designed In Accordance With Directive 94/9/Ec

    Marking of the gear unit designed in accordance with Directive 94/9/EC Table 1: ATEX identification for above­ground applications Equip- Equipment "Ex" Explosion Temperature ment Identification marking category atmosphere * group class group II 2 G IIA T4 bck T Gas (G) IIA, IIB, IIC T3, T4 Gas (G) or...
  • Page 11: Versions

    Versions 1.3.1 Gear­unit types K.SH K.VH K.SM K.HH K.KH K.DH K.HM K.KM K.DM Fig. 2: Types BA 5846 en 05/2015 11 / 109...
  • Page 12: Ambient Temperature

    By adopting various suitable measures the gear unit may be used at ambient temperatures of between ­ 40 °C and + 60 °C. Siemens must always have approved and confirmed the temperature range and the extended temperature range in the order specification.
  • Page 13: General Notes

    All persons carrying out work on the gear unit must have read and understood these instructions and must adhere to them. Siemens accepts no responsibility for damage or disruptions to operation caused by disregard of these instructions. The "FLENDER gear unit" described in these instructions has been designed for use as a lifting and luffing gear unit.
  • Page 14: Safety Instructions

    Safety instructions WARNING Risk of falling Risk of serious injury through falling. The gear unit and its add­on parts must not be entered while they are in operation. The gear unit must be entered for maintenance and repair work only when it is at a standstill. WARNING Risk of injury through unauthorised modifications Any changes on the part of the user are not permitted.
  • Page 15 NOTICE Material damage Risk of damage to the gear unit. Care must be taken to ensure that no electric current can flow through gear units that are operated together with electrical equipment that generate electric current or in which electric­current flows (e.g.
  • Page 16: Special Dangers And Personal Protective Equipment

    • Spare parts must be obtained from Siemens (see section 11, "Spare parts, customer service"). Special dangers and personal protective equipment Depending on operating conditions, the surface of the gear unit may heat up or cool down to extreme temperatures.
  • Page 17: The Five Safety Rules

    Note In addition to any generally prescribed personal safety equipment (such as safety shoes, safety clothing, helmet) handling the gear unit requires wearing suitable safety gloves and suitable safety glasses. Note The gear unit complies with the requirements in Directive 94/9/EC. DANGER Risk of explosion Danger to life through ignition of any potentially explosive atmosphere while fitting or dismounting the...
  • Page 18: Transport And Storage

    Scope of delivery and incoming­goods inspection The products supplied are listed in the dispatch papers. Check on receipt to ensure that all the products listed have actually been delivered. Parts damaged and/or missing parts must be reported to Siemens in writing immediately.
  • Page 19 WARNING Danger of squeezing Risk of being squeezed by a transported component, when the used lifting gear and load­carrying means are not suitable and the component gets loose. The unit may be attached only at the marked slinging points. Use only lifting and load­carrying equipment of sufficient load­bearing capacity.
  • Page 20 K..H K..M Fig. 4: Attachment points For drive units where add­on parts such as drive motor or add­on coupling are fitted on the gear unit, an additional attachment point may be required because of the shift in the centre of gravity. Fig.
  • Page 21: Storing The Gear Unit

    Storing the gear unit The gear unit must be stored in a sheltered place in the position of the original packaging or in the position of use, placed on a vibration­free, dry base, and covered over. Gear units with grease­lubricated rolling bearings must be stored in the position of use. NOTICE Material damage Any damage to the coating may cause failure of the exterior protective coating and thus corrosion.
  • Page 22: Standard Coating And Preservation

    Standard coating and preservation The gear unit is provided with an interior preservative agent; the free shaft ends are painted for protection. The characteristics of the exterior coat depend on the ambient conditions stipulated in the order relating to method of transport and area of application. NOTICE Material damage Risk of damage to the gear unit through corrosion.
  • Page 23: Interior Preservation With Preservative Agent

    Note Unless otherwise contractually agreed, the durability periods of the interior gear­unit preservation specified in table 2 or 3 will apply, provided the related requirements are adhered to. The durability period for the exterior preservation and the related requirements can be found in table 4. The guarantee period starts on the date of delivery or that of the notice that the item is ready for shipment.
  • Page 24: Interior Preservation With "Castrol Tribol 1390

    4.4.1.2 Interior preservation with "Castrol Tribol 1390 / 220" Table 3: Durability period and measures for interior preservation when using PG­based synthetic oil Durability period Preservative agent Special measures up to 6 months None – Seal all holes on the gear unit. –...
  • Page 25: Exterior Preservation

    NOTICE Material damage Corrosion possible through leaving the gear unit open too long. Close the gear unit airtightly at the latest one hour after opening. Before re­starting the gear unit take the following measure: – Replace the screw plug with the air filter or wet­air filter. •...
  • Page 26: Technical Description

    Technical description Observe the instructions in section 3, "Safety instructions"! General description The gear unit described is a "FLENDER gear unit" developed for use as lifting and luffing gear unit. The gear unit supplied is a three or four stage helical­gear unit. It is designed for installation in the horizontal mounting position.
  • Page 27: Housing

    Housing The housing is in two sections. The housing is of torsionally rigid design and due to its shape imparts very favourable noise and temperature characteristics. The gear­unit housing comes with the following equipment: ─ Lifting eyes (adequately dimensioned for transport) ─...
  • Page 28 Fig. 8: Gear­unit features on gear units of type K..H Fig. 9: Gear­unit features on gear units of type K..M Housing Rating plate Lifting eye Gear-unit fastening Cover Inspection and/or assembly cover Cover Alignment surface Shaft seal Alignment thread Dipstick Oil inlet Housing ventilation Fastening for torque arm...
  • Page 29: Lubrication

    Lubrication 5.4.1 Force­feed lubrication In case of high input speeds or high peripheral speeds at the toothed systems, the splash lubrication can, depending on the order, be supplemented by or replaced with a force­feed lubrication. In case of force­feed lubrication the bearings and/or teeth situated higher than the oil level are adequately supplied with oil by way of pipework.
  • Page 30: Taconite Seal

    5.6.2 Taconite seal Taconite seals have been especially developed for use in a dusty environment. The entry of dust is prevented by the combination of three sealing elements (radial shaft­sealing ring, lamellar seal and a grease­charged, re­chargeable labyrinth seal). Fig. 11: Taconite seal Radial shaft-sealing ring Grease-charged labyrinth seal, re-chargeable Lamellar seal...
  • Page 31: Backstop

    Table 6: Variant description Taconite seal Variants of the Taconite Application Remarks seals "E" All input shafts with or without fan Output shaft Re-chargeable labyrinth "F" Type S: (Solid shaft) Type V: (Solid shaft, reinforced) Output shaft Labyrinth re-chargeable on both sides, Type H: (Hollow shaft with parallel keyway) incl.
  • Page 32: Torque­limiting Backstop (Special Design)

    Note The locking direction can be changed by turning the cage around. If a change in locking direction is required, Siemens should always be consulted. NOTICE Material damage Risk of damage to or destruction of the backstop and/or the gear unit through incorrect direction of rotation.
  • Page 33 Note The locking direction can be changed by turning the cage around. If a change in locking direction is required, Siemens should always be consulted. WARNING Risk of injury through moving plant parts After having stopped the motor, there is a danger that the load is not safely held in its position and can run in reverse direction at high speed.
  • Page 34: Cooling

    " is fallen below, this means that the friction pads are worn too heavily and that sparking min. may occur. When this value "x " is reached, Siemens must be consulted. min. NOTICE Material damage Risk of damage to or destruction of the backstop and/or the gear unit through incorrect direction of rotation.
  • Page 35: Fan

    5.8.1 As a rule the fan is fitted on the high­speed shaft of the gear unit and is protected from accidental contact by an air­guide cover. The fan sucks air through the grid of the air­guide cover and blows it by way of its air ducts on the side along the gear­unit housing.
  • Page 36: Cooling Coil

    5.8.2 Cooling coil The gear unit can be fitted with a cooling coil in the oil sump. Cooling water is supplied to the cooling coil by way of a water connection. The operator must ensure this. Either fresh water, sea water or brackish water can be used for cooling purposes.
  • Page 37: Separate Or External Oil­supply System

    5.8.3 Separate or external oil­supply system It is possible to use an oil­supply system which is separately supplied by Siemens or an external system to ensure cooling of the oil. Note Be sure to observe the operating instructions of the oil­supply system for operation and maintenance.
  • Page 38: Heating

    5.10 Heating At low temperatures it may be necessary to preheat the gear­unit oil before switching on the drive unit or even during operation. In such cases the use of heating elements is possible. The heating elements convert electrical energy into heat which is transferred to the surrounding oil. The heating elements are located in protective tubes inside the housing, thus making it possible to replace the heating elements without draining off the oil.
  • Page 39: Heating Element In "Ex"­Version

    5.11 Heating element in "Ex"­version If heating elements are designed to be explosion-proof, the gear unit is additionally equipped with oil-level monitoring by means of an oil-level limit switch. This monitoring system checks the oil level in the gear unit for immersion of the heating elements (see item 5.11.1).
  • Page 40: Oil­temperature Monitoring System

    5.13 Oil­temperature monitoring system The gear unit can be fitted with a temperature monitor for measuring the oil temperature in the oil sump. In order to measure the temperatures and/or temperature differences, the temperature monitor should be connected to an evaluating device provided by the customer. If the gear unit is designed as an appliance of category 2 in conformity with Directive 94/9/EC, it is, as a standard, equipped with a Pt 100 resistance thermometer, a thermoelement or with a temperature control for measuring the oil temperature in the oil sump.
  • Page 41: Oil­level Monitoring System

    5.14 Oil­level monitoring system The gear unit may be fitted with an oil­level limit switch for monitoring the oil level. The oil­level monitoring device has been designed for checking the oil level when the gear unit is at a standstill, prior to operating start.
  • Page 42: Bearing Monitoring By Shock­pulse Transducer

    The gear unit may also be set up for temperature monitoring at the bearing points. The gear unit is then equipped with tapped holes for fitting Pt 100 resistance thermometers. For this version Siemens must be consulted.
  • Page 43: Gear Unit With Torque­limiting Backstop

    " " " " Fig. 22: Accelerometer complete ("C") and threaded hole ("D") for variants 5A and 5B For a detailed view of the gear unit with sensors added-on, please refer to the drawings in the gear-unit documentation. Note For operation of the sensors, the special operating instructions should be observed. 5.15.4 Gear unit with torque­limiting backstop Note If a torque­limiting backstop (see item 5.7.1) is used on gear units, the slipping torque will already have...
  • Page 44: Changeover

    5.16 Changeover The gear unit can be fitted with a clutch as an option. The gear unit can be changed for two speeds. Changeover is done manually. NOTICE Material damage Risk of destruction of the gear unit or gear­unit components. The shifting operation may only be done with the motor at a standstill and while the load hook is lying on the floor or with the brake on the output side switched on.
  • Page 45: Fitting

    When transporting the gear unit, observe the notes in section 4, "Transport and storage". Fitting work must be done with great care by authorised, trained and qualified personnel. Siemens cannot be held liable for damage caused by incorrect assembly and installation.
  • Page 46: Unpacking

    The products supplied are listed in the dispatch papers. Check immediately on receipt to ensure that all the products listed have actually been delivered. Parts damaged and/or missing parts must be reported to Siemens in writing immediately. • Remove packaging material and transporting equipment and dispose of in accordance with regulations.
  • Page 47: Fitting The Gear Unit

    Fitting the gear unit 6.3.1 Fitting the gear­unit on a housing base 6.3.1.1 Foundation NOTICE Material damage Risk of damage through insufficiently safe positioning of the gear unit. The foundation must be horizontal and level. The gear unit must not be excessively stressed when tensioning the fastening bolts.
  • Page 48: Description Of Fitting Work

    6.3.2 Description of fitting work DANGER Risk of explosion Danger to life through ignition of solvent­agent vapours or any other potentially explosive atmosphere during cleaning work. The gear unit must not be cleaned in a potentially explosive atmosphere. Observe also the following: –...
  • Page 49: Alignment

    The elements must be pulled smartly onto the shaft as far as stated on the dimensioned drawing prepared in accordance with the order. NOTICE Material damage Damage to the gear unit possible through knocking or impacts. Fit the coupling using suitable fitting equipment. The shaft­sealing rings and running surfaces of the shaft must not be damaged when pulling on the coupling parts.
  • Page 50 Fig. 23: Alignment surfaces and alignment thread Alignment surfaces Alignment thread The final fine alignment with the units on the in­ and output side must be carried out accurately by the shaft axes, using: ─ Rulers ─ Spirit level ─ Clock gauge ─...
  • Page 51: Fitting On A Foundation Frame

    6.3.2.2 Fitting on a foundation frame • Clean the undersurface of the gear­unit base and the foundation frame. • Using suitable lifting gear, place the gear unit on the foundation frame. • Tighten the foundation bolts to the specified torque (see item 6.19). If necessary, use stops to prevent displacement.
  • Page 52: Fitting A Shaft­mounted Gear Unit With Hollow Shaft And Parallel Keyway

    Fitting a shaft­mounted gear unit with hollow shaft and parallel keyway The end of the driven­machine shaft (material C60+N or higher strength) must be provided with a parallel key to standard "DIN 6885" Part 1 Form A. There should also be a centering hole to standard "DIN 332" Form DS (with thread) on the end face.
  • Page 53: Pulling On

    • Check the hollow and driven­machine shafts for any damage on the bearing seats and edges. If necessary, rework the parts with a suitable tool and clean them again. Note Coat the contact surfaces with a suitable lubricant to prevent frictional corrosion. 6.5.2.1 Pulling on •...
  • Page 54: Demounting

    ─ using forcing­off screws in an end plate (see figure 28), or ─ using a central threaded spindle. Note The end plate and/or the auxiliary plate for forcing off the gear unit are not included in the Siemens delivery. Fig. 27: Hollow shaft with parallel keyway, demounting with hydraulic lifting unit...
  • Page 55 Damage to the gear unit possible through canting during demounting work. When pulling the gear unit off the driven­machine shaft any canting must be avoided. Note The auxiliary plate for forcing­out is not included in the scope of delivery of Siemens. NOTICE Material damage Damage to the gear­unit housing or other gear­unit components.
  • Page 56: Shaft­mounted Gear Unit With Hollow Shaft And Splines To Standard "Din 5480

    Shaft­mounted gear unit with hollow shaft and splines to standard "DIN 5480" The shaft end of the driven machine must be designed with splines to standard "DIN 5480". There should also be a centering hole to standard "DIN 332" Form DS (with thread) on the end face. For the connection dimensions of the driven­machine shaft, see dimensioned drawing in the gear­unit documentation.
  • Page 57: Fitting With Integrated Du Bush

    • Check the hollow and the driven­machine shafts for any damage on the bearing seats and edges. If necessary, rework the parts with a suitable tool and clean them again. Note Coat the contact surfaces with a suitable lubricant to prevent frictional corrosion. 6.6.2.1 Fitting with integrated DU bush •...
  • Page 58: Fitting With Loose Du Bush

    6.6.2.2 Fitting with loose DU bush The loose DU bush is pushed onto the machine shaft, fixed rigidly in position with a locating tie and then pulled into the hollow shaft of the gear unit along with the machine shaft (see figure 30). NOTICE Material damage Risk of damage to the gear unit through canting during fitting work.
  • Page 59 Fig. 31: Hollow shaft with splines, demounting with hydraulic lifting unit Machine shaft Threaded spindle Hollow shaft Pressure-oil connection DU bush Auxiliary plate for forcing out Hydraulic lifting unit Fig. 32: Hollow shaft with splines, demounting with end plate Machine shaft End plate Hollow shaft Pressure-oil connection...
  • Page 60 Damage to the gear unit possible through canting during demounting work. When pulling the gear unit off the driven­machine shaft any canting must be avoided. Note The auxiliary plate for forcing­out is not included in the scope of delivery of Siemens. NOTICE Material damage Damage to the gear­unit housing or other gear­unit components.
  • Page 61: Shaft­mounted Gear Unit With Hollow Shaft And Shrink Disk

    Shaft­mounted gear unit with hollow shaft and shrink disk The end of the driven­machine shaft (material C60+N or higher strength) should have a centring means to standard "DIN 332" Form DS (with thread) in its end face. For the connection dimensions of the driven­machine shaft, see dimensioned drawing in the gear­unit documentation.
  • Page 62: Fitting With Integrated Du Bush

    • Check the hollow and driven­machine shafts for any damage on the bearing seats and edges. If necessary, rework the parts with a suitable tool and clean them again. Note The bore of the hollow shaft and the driven­machine shaft must be absolutely free of grease in the area of the shrink­disk seat.
  • Page 63: Fitting With Loose Du Bush

    6.7.2.2 Fitting with loose DU bush The loose DU bush is pushed onto the machine shaft, fixed rigidly in position with a locating tie and then pulled into the hollow shaft of the gear unit along with the machine shaft (see figure 34) . NOTICE Material damage Risk of damage to the gear unit through canting during fitting work.
  • Page 64 Fig. 35: Hollow shaft in design with shrink disk, demounting with hydraulic lifting unit Machine shaft Threaded spindle Hollow shaft Pressure-oil connection DU bush Auxiliary plate for forcing out Hydraulic lifting unit Fig. 36: Hollow shaft in design with shrink disk, demounting with end plate Machine shaft End plate Hollow shaft...
  • Page 65 Note The auxiliary plate for forcing­out is not included in the scope of delivery of Siemens. NOTICE Material damage Damage to the gear­unit housing or other gear­unit components. If the support is provided not only by the hollow shaft, but also by the housing, when forcing the gear unit off, as shown in figure 35, the forces used must not exceed the values given in table 10 below.
  • Page 66: Couplings, Clutches

    Note For permissible alignment errors in case of couplings supplied by Siemens, refer to the operating instructions for the couplings. When using couplings manufactured by other manufacturers, ask these manufacturers which alignment errors are permissible, stating the radial loads occurring.
  • Page 67 The coupling parts may get out of alignment: ─ through imprecise alignment during assembly or installation ─ during operation of the system ─ through heat expansion, ─ through shaft flexure, ─ through too weak machine frames, etc. ΔKa Axial misalignment Angular misalignment Radial misalignment (ΔKa)
  • Page 68: Fitting The Torque Arm For The Gear­unit Housing

    Material damage Damage to the gear unit possible through incorrect fitting of the motor or torque arm. Motor and torque arm should be fitted only in consultation with Siemens. The torque arm must be fitted stress­free on the machine side.
  • Page 69: Gear Unit With Separate Oil­supply System

    6.11 Gear unit with separate oil­supply system • Remove the plugs out of the suction and delivery lines prior to connecting the system. • Fit the system to the gear unit or install it separately, in accordance with the drawings supplied in the gear­unit documentation.
  • Page 70: Final Work

    6.18 Final work After installation of the gear unit check all screw connections for tight fit. □ Check the alignment after tightening the fastening elements. The alignment must not have been □ changed. Check that all the devices which have been demounted for transport reasons have been re­fitted. □...
  • Page 71: Screw­connection Classes, Tightening Torques And Initial­tensioning Forces

    6.19 Screw­connection classes, tightening torques and initial­tensioning forces 6.19.1 Screw­connection classes The specified screw connections are to be fastened applying the tightening torques specified observing the table below. Table 11: Screw­connection classes Scatter of the Tightening procedure Screw-connection torque emitted class on the tool (Usually the tightening procedures lie within the stated...
  • Page 72 Nominal Strength Initial-tensioning force for Tightening torque for thread class of the screw-connection classes screw-connection classes diameter bolt from table 11 from table 11 M min. 49300 31600 19800 10.9 72500 46400 29000 12.9 85000 54400 34000 77000 49200 30800 10.9 110000 70400...
  • Page 73: Start­up

    Start­up Observe the instructions in section 3, "Safety instructions"! Procedure before start­up 7.1.1 Removal of preservative agent from exterior • The preserved shaft ends in the area of the couplings to be fitted must be depreserved, using suitable agents (special solvent). The depreservation also applies to bright surfaces of the gear unit, onto which components are to be fitted.
  • Page 74 K..H K..M Fig. 40: Oil inlet and oil drain on the gear unit Inspection and/or assembly cover Oil drain Dipstick Oil inlet Air-relief point Fig. 41: Gear unit with backstop Gear unit Screw plug Residual-oil drain Sealing cover backstop Screw plug Oil filling Backstop For a detailed illustration of the gear unit and the position of the add­on parts, refer to the drawings in the gear­unit documentation.
  • Page 75: Filling With Lubricant

    The quality of the oil used must meet the requirements of the separately supplied BA 7300 operating instructions, otherwise the guarantee given by Siemens will lapse. We urgently recommend using one of the oils listed in table "T 7300" (for a link to the Internet, see the back cover), as they have been tested and meet the requirements.
  • Page 76: Oil Quantities

    • Check the oil level in the gear­unit housing. Note The oil must come up to the middle of the oil­sight glass, to the middle between the MIN and MAX marks on the oil­level indicator or to the middle between the MIN and MAX marks on the dipstick. CAUTION Risk of injury through chemical substances The oil must not come into contact with the skin (e.g.
  • Page 77: Start­up

    Table 14: Approximate values for required oil quantities in mounting position in gear units for sizes 115 to 124 Oil quantity (approximate value) in litres for sizes 115 to 124 Type 115 116 117 118 119 120 121 122 123 124 150 175 210 240 285 360 410 520 K3SH, K3SM, K3VH, K3HH ,K3KH, K3DH 150 175 210 240 285 360 410...
  • Page 78: Oil Level

    7.2.1 Oil level Depending on the type the following oil levels are correct: ─ Middle of the oil­sight glass ─ Middle between the MIN and MAX marks on the oil­level indicator ─ Middle between the MIN and MAX marks on the dipstick Note When cooled down the oil must be visible beneath the middle of the oil­sight glass, between the MIN and MAX marks on the oil­level indicator or between the MIN and MAX marks on the dipstick.
  • Page 79: Gear Unit With Oil­supply System - Pre­lubrication Phase

    If the oil temperature is below 10 °C the oil should be preheated applying suitable measures, or Siemens should be consulted. Be sure to observe the operating instructions of the oil­supply system for operation and maintenance.
  • Page 80 When this value "x " is reached, Siemens must be consulted. min. Before connecting the motor, determine the direction of rotation of the three­phase current supply using a phase­sequence indicator. Connect the motor in accordance with the specified direction of rotation.
  • Page 81: Temperature Measurement

    Danger to life through ignition of a potentially explosive atmosphere through overheating of the gear unit. The maximum permissible oil­sump temperature is 90 °C. (see section 8, "Operation"). At higher temperatures the gear unit must be shut down immediately and Siemens customer service consulted.
  • Page 82: Heating

    7.2.8 Heating The heating rods can be controlled by a temperature monitor which emits a signal when minimum and maximum temperatures are reached; the signal requires amplification. The gear unit is fitted with an oil­level monitoring device. This oil­level monitoring system checks the minimum oil level of the gear unit, which is required for immerging the heating rod.
  • Page 83: Shutting Down

    Shutting down • Switch off the drive unit. DANGER Danger to life through switched­on installation To carry out work, the gear unit and the separate oil­supply unit must always be stopped. The drive unit must be secured against being switched on accidentally (e.g. by locking the key switch or by removing the fuses from the power supply).
  • Page 84: Interior Preservation With Preservative Agent

    • Top up gear­unit oil through the hole up to just beneath the air filter or wet­air filter. Note For gear­unit oils, refer to table "T 7300" (for a link to the Internet, see the back cover). CAUTION Risk of injury through chemical substances The oil must not come into contact with the skin (e.g.
  • Page 85 • Remove any dirt in the area of the inspection and/or assembly cover or that of the marked oil­filling point. • Undo and remove the fastening screws of the inspection and/or assembly cover. • Remove the cover with the seal from the housing (the seal must not be damaged, it will be used again). •...
  • Page 86: Interior Preservation With "Castrol Alpha Sp 220 S" Preservative Agent

    7.3.1.3 Interior preservation with "Castrol Alpha SP 220 S" preservative agent • Place a suitable container under the oil­drain point of the gear­unit housing. • Unscrew the oil­drain plug and/or open the oil­drain cock. • Drain the oil into a suitable container (see section 10, "Maintenance and Repair"). WARNING Risk of scalding Serious injury through escaping operating media possible whilst they are replaced.
  • Page 87: Exterior Preservation

    • Place the inspection and/or assembly cover with the seal on the housing. • Screw in the fastening screws of the inspection and/or assembly cover and tighten them to the specified tightening torque (see item 6.19). NOTICE Material damage Corrosion possible through leaving the gear unit open too long. Close the gear unit airtightly at the latest one hour after opening.
  • Page 88: Operation

    Operating temperature The maximum permitted temperature is: □ 90 °C At higher temperatures the gear unit must be shut down immediately and Siemens customer service consulted. Oil pressure of the oil-supply Minimum 0.5 bar □ system Water pressure of the cooling coil Maximum 8 bar □...
  • Page 89: Oil Level

    Oil level Note For checking the oil level, the gear unit must be stopped. Depending on the type of the gear­unit housing the following oil levels are correct when the oil has cooled down: – Middle of the oil­sight glass –...
  • Page 90: Irregularities

    Table 15, "Faults, causes and remedy", contains a list of possible faults, their causes and suggested remedies. If the cause cannot be found, a specialist from a Siemens customer­service centre should be called in (see section 2, "General notes"). DANGER...
  • Page 91: Faults, Causes And Remedy

    Risk of damage to the gear unit through improper use. Siemens will not be bound by the terms of the guarantee or otherwise be responsible for further operation in cases of improper use of the gear unit, modifications carried out without the approval by Siemens or use of spare parts not originally supplied by Siemens.
  • Page 92 Faults Causes Remedy Increased temperature at the Oil level in gear­unit housing too Check the oil level at ambient bearing points. low or too high. temperature. Top up or drain oil, if necessary. Oil too old. Check date of last oil change. Change oil, if necessary.
  • Page 93 Faults Causes Remedy Oil foaming in the gear unit. Preservative agent not completely Change oil. drained. Gear unit too cold in operation. Shut down gear unit and have oil degassed. Restart without cooling water. Water in oil. Check state of oil by the test­tube method for water contamination.
  • Page 94 Faults Causes Remedy Increased temperature at Damage to backstop. Contact Customer Service. backstop. Check and, if necessary, Locking function fails. replace backstop. Main drive motor does not Incorrect direction of rotation of the Change polarity of motor. start. motor. Incorrect installation and/or defect Contact Customer Service.
  • Page 95: Leakage And Leaktightness

    9.2.1 Leakage and leaktightness In standard "DIN 3761" information is given on the subject of leakage on gear units. Based on this and building on the extensive experience gained at Siemens and other FVA member companies, brief descriptions, required measures and notes on this subject are included in the following overview.
  • Page 96: Maintenance And Repair

    Maintenance and repair Observe the instructions in section 3, "Safety instructions", and in section 9, "Faults, causes and remedy"! 10.1 General notes on maintenance All maintenance and repair work must be carried out carefully and by qualified personnel only (see section ”Qualified Personnel" on page 3 of this manual). The following applies to all work in item 10.2: WARNING Serious risk of injury through switched­on installation...
  • Page 97 Table 17: Maintenance and repair work Measures Periods Remarks Check the oil temperature Daily See items 7.2.5 and 8.1. Check for unusual gear-unit noise Daily Check the oil level Monthly and before each start – Middle of the oil-sight glass –...
  • Page 98: General Service Lives Of Oils

    Detailed information about examining the oil for water content or conducting oil analyses is obtainable from your lubricant manufacturer or the Siemens customer service. ─ For reference purposes, a fresh sample of the operating lubricating oil used must be sent with the used­oil sample to the analysing institute for analysis.
  • Page 99: Change Oil

    Flushing is not necessary, if the new operating oil is fully compatible with the previously used operating oil in all respects. The compatibility must be confirmed by the oil supplier. If there is a change to another oil, Siemens recommends flushing out the gear unit with the new type of operating oil.
  • Page 100: Replace The Wet­air Filter

    • Clean the permanent magnet of the oil­drain plug thoroughly. • Drain the oil from the oil­supply system (see operating instructions to the oil­supply system). CAUTION Risk of scalding Risk of injury through escaping hot oil. Wear suitable protective gloves, protective glasses and protective clothing. Remove any oil spillage immediately with an oil­binding agent.
  • Page 101: Clean The Air Filter

    10.2.4 Clean the air filter Note A period of 3 months has been specified for cleaning the air filter. If a layer of dust has built up, the air filter must already be cleaned, whether or not the period of 3 months has expired.
  • Page 102 min. Fig. 42: Torque­limiting backstop Backstop outer ring Locking wire Backstop inner ring Lead screw with compression spring Cage with sprags Friction lining Shaft (adapter flange) Note To safeguard the set slipping torque, the lead screws of the compression springs are secured with locking wire.
  • Page 103: Clean The Fan And Gear Unit

    10.2.6 Clean the fan and gear unit • The instructions in item 5.8.1 must be observed! • Demount the air­guide cover. • Using a stiff brush, remove any dirt adhering to the fan wheel, air­guide cover and safety grid. • Remove any corrosion.
  • Page 104: Check Cooling Coil

    Such companies also sell special cleaning agents for removing such deposits. Before using these cleaning agents, check that they will not damage the cooling­coil materials (contact Siemens). Observe the manufacturer’s instructions at all times when using different cleaning agents from several manufacturers.
  • Page 105: Top Up Oil

    Damaged bolts must be replaced with new bolts of the same type and strength class. 10.4 General inspection of the gear unit The general inspection of the gear unit should be carried out by the Siemens Customer Service, as our engineers have the experience and training necessary to identify any components requiring replacement. 10.5...
  • Page 106: Spare Parts, Customer Service

    Siemens will assume no liability or guarantee for damage caused by spare parts not supplied by Siemens. The same applies to any accessories not supplied by Siemens.
  • Page 107: Declarations

    12.1 Declaration of incorporation Declaration of incorporation in accordance with Directive 2006/42/EC, Annex II 1 B The manufacturer, Siemens AG, 46395 Bocholt, Germany, declares with regard to the partly completed machinery Crane gear unit K.SH, K.SM, K.VH, K.HH, K.KH, K.DH, K.HM, K.KM, K.DM...
  • Page 108: Ec Declaration Of Conformity

    EC declaration of conformity within the meaning of EC Directive 94/9/EC of 23.03.1994 and the legal requirements laid down for its implementation The manufacturer, Siemens AG, 46395 Bocholt, Germany, declares that the equipment described in these assembly and operating instructions: Crane gear unit K.SH, K.SM, K.VH, K.HH, K.KH,...
  • Page 109 Further Information: "FLENDER gear units" on the Internet www.siemens.com/gearunits "FLENDER couplings" on the Internet www.siemens.com/couplings Service & Support: http://support.automation.siemens.com/WW/view/en/10803928/133300 Lubricants: http://support.automation.siemens.com/WW/view/en/42961591/133000 Siemens AG Subject to modifications Industry Sector Mechanical Drives © Siemens AG 2015 Alfred-Flender-Straße 77 46395 Bocholt GERMANY www.siemens.com/drive­technologies...

Table of Contents