Related Manuals for Siemens Flender H2NV Series
Summary of Contents for Siemens Flender H2NV Series
- Page 1 Cooling-tower gear unit H2NV Sizes 105 to 112 Assembly and operating instructions BA 5060 EN 04/2011 FLENDER gear units...
- Page 2 Technical data Cooling-tower gear unit General notes Safety instructions H2NV Sizes 105 to 112 Transport and storage Technical Assembly and operating instructions description Translation of the original assembly and operating instructions Fitting Startup Operation Faults, causes and remedy Maintenance and repair Spare parts, customer service Declarations...
- Page 3 Notes and symbols in these assembly and operating instructions Note: The term "Assembly and operating instructions" will in the following also be shortened to "instructions" or "manual". Legal notes Warning-note concept This manual comprises notes which must be observed for your personal safety and for preventing material damage. Notes for your personal safety are marked with a warning triangle or an "Ex"...
- Page 4 Intended use of Siemens products Observe also the following: Siemens products must be used only for the applications provided for in the catalogue and the relevant technical documentation. If products and components of other makes are used, they must be recommended or approved by Siemens.
-
Page 5: Table Of Contents
Contents Technical data ............General technical data . - Page 6 Fitting ............. . General information on fitting .
- Page 7 Maintenance and repair ..........10.1 General notes on maintenance .
-
Page 8: 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 9: Marking Of The Gear Units In Design In Accordance With Directive 94/9/Ec
By adopting various suitable measures the gear unit may be used at ambient temperatures of between 40 °C and + 60 °C. However, this must always be approved by Siemens. In individual cases the permissible ambient temperature range specified on the rating plate always applies. -
Page 10: Measuringsurface Soundpressure Level For Helicalgear Units With Fan
1.3.1 Measuringsurface soundpressure level for helicalgear units with fan Table 2: Measuringsurface soundpressure level L in dB(A) for helicalgear units with fan Gear-unit size Type 1/min 3000 1500 1000 11.2 3000 1500 1000 3000 1500 1000 1.3.2 Measuringsurface soundpressure level for helicalgear units without fan Table 3: Measuringsurface soundpressure level L in dB(A) for helicalgear units without fan... -
Page 11: 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 disruption caused by disregard of these instructions. The "FLENDER gear unit" described in these Instructions has been designed for driving an aircooling installation for power stations. -
Page 12: Safety Instructions
Safety instructions Entry to the gear unit and its added components is not permitted during operation! Entry for maintenance and repair work is only permitted when the gear unit is at a standstill! Caution! Risk of falling! Any changes on the part of the user are not permitted. This applies equally to safety features designed to prevent accidental contact. -
Page 13: Environmental Protection
Screws which have been damaged during assembly or disassembly work must be replaced with new ones of the same strength class and type. • Spare parts must always be obtained from Siemens (see section 11, "Spare parts, customer service"). Environmental protection •... -
Page 14: Transport And Storage
The products supplied are listed in the despatch 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. If there is any visible damage, the gear unit must not be put into operation. - Page 15 Fig. 3: Attachment points on the gear unit Units which are slung by eyebolts must not be tilted. Fig. 4: Attachment points on gear unit with motor If the gear unit is to be transported with addon parts, additional attachment points may be required.
-
Page 16: Storing The Gear Unit
Storing the gear unit The gear unit must be stored in a sheltered place, placed on a vibrationfree, dry base, and covered over. When temporarily storing the gear unit and any single components supplied with it, the preservative agent should be left on them. It must not be damaged, otherwise there is a risk of corrosion. -
Page 17: Interior Preservation With Preservative Agent
For storage periods longer than 24 months, renew the preservative agent. For storage periods longer than 36 months, Siemens should be consulted before. Table 5: Durability period and measures for interior preservation when using PGbased synthetic oil... -
Page 18: Exterior Preservation
4.4.2 Exterior preservation Table 6: Durability period for exterior preservation of shaft ends and other bright machined surfaces Duration Preservative Layer Remarks of protection agent thickness In case of Long-term wax-based preservative indoor storage agent: up to 36 months Tectyl 846 K19 approx. -
Page 19: Technical Description
Technical description Observe the instructions in section 3, "Safety instructions"! General description The gear unit described is a twostage helicalgear unit designed for driving an aircooler installation for power stations. It is designed for installation in a vertical position. The output shaft rotates in an oilpressure tube (see item 5.6.2). This prevents gear oil from escaping at the shaft end. -
Page 20: Toothed Components
Fig. 5: Gearunit features Housing Gearunit fastening Ring bolts / lifting eyes Flangedon pump Inspection or assembly cover Backstop Oil dipstick / oil inlet Lubricating point Oildrain cock / oildrain plug Shaft seal Housing ventilation Residualoil drain Rating plate A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation. Toothed components The toothed components of the gear unit are casehardened. -
Page 21: Combined Splash And Forced Lubrication By Means Of An Attached Oil Pump
Combined splash and forced lubrication by means of an attached oil pump The rolling bearings and gear stages are supplied with oil by means of splash and forced lubrication. The outputshaft rolling bearing arranged at the bottom is greaselubricated. The oilsupply system is part of the commission and comprises: •... -
Page 22: Pump
Fig. 7: Gearunit equipment with motor pump Motor pump Pressure monitor Coarse filter A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation. In case of gear units with a combined splash and forced lubrication, it is Oil pressure in accordance with necessary connect... -
Page 23: Shaft Seals
Shaft seals Radial shaft seals at the shaft outlets prevent oil or grease from escaping from, or dirt from entering into the gear unit. 5.6.1 Radial shaftsealing rings Radial shaftsealing rings are the standard type of seal. They are fitted preferably with an additional dust lip to protect the actual sealing lip from external contamination. -
Page 24: Protection Against Dry Running
5.6.3 Protection against dry running In order to safely avoid dry running of the shaft sealing ring arranged at the top, a grease filling (4) and a ring (3) are provided above the shaft-sealing ring (2). In such case, a shaft-sealing ring with no additional dust lip is applied. -
Page 25: Backstop
The stop direction can be changed by turning the cage around. If a change in stop direction is required, Siemens should be consulted beforehand. To avoid damaging the backstop or the gear unit, the motor must not be run adversely to the stop direction of the gear unit. -
Page 26: Couplings, Clutches
Fig. 13: Fan Cover plate of the fan A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation. For gear units fitted with a fan, sufficient space must be allowed for air intake when fitting the safety guards for the coupling or other components. -
Page 27: Heating
5.10 Heating At low temperatures it may be necessary to heat the gear oil before switching on the drive unit or even during operation. In such cases the use of heating elements is possible. These heating elements convert electrical energy into heat which is conducted to the surrounding oil. The heating elements are located in protective tubes inside the housing, thus making it possible to replace them without draining off the oil. -
Page 28: Temperature Control Of The Heating Elements
5.10.1 Temperature control of the heating elements The heating elements are controlled by a device controlling the minimum and maximum temperature. As a rule, and unless otherwise agreed by contract, for this function double thermostats working as temperature monitor and safety temperature monitor are used. A detailed view of the temperaturecontrol device can be obtained from the drawings in the gearunit documentation. -
Page 29: Oiltemperature Monitoring System
5.12 Oiltemperature monitoring system The gear unit is fitted with a Pt 100 resistance thermometer for measuring the oil temperature in the oil sump. In order to measure the temperatures and/or temperature differences, the Pt 100 resistance thermometer, which should comply with the requirements of Directive 94/9/EC, must be connected to a suitable evaluating instrument provided by the customer. -
Page 30: Fitting
Fitting Observe the instructions in section 3, "Safety instructions"! The gear unit must not be fitted whilst the environment is explosive. General information on 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. The manufacturer cannot be held liable for damage caused by incorrect assembly and installation. -
Page 31: Unpacking
The products supplied are listed in the despatch 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. The packaging must not be opened or damaged, when this is part of the preservation method! •... -
Page 32: Alignment
6.3.1.1 Alignment Orderspecific machined surfaces (alignment surfaces) are provided on the gear-unit top side for preliminary alignment in horizontal direction. Alignment surface: For the exact position of the alignment surfaces please refer to the drawings of the gearunit documentation. The alignment surfaces are for aligning the gear unit horizontally, in order to ensure correct running of the gear unit. -
Page 33: Fitting On A Steel Frame
For permissible alignment errors in case of couplings supplied by Siemens, please refer to the operating instructions manuals for the couplings. If you use couplings manufactured by other manufacturers, ask these manufacturers which alignment errors are permissible, stating the radial loads occurring. -
Page 34: Gear Unit With Wiring In The Terminal Box
Alignment has to be done in two axial planes arranged perpendicularly to each other. This can be done by means of a ruler (radial misalignment) and feeler gauge (angular misalignment), as shown in the illustration. The aligning accuracy can be increased by using a dial gauge or a laser alignment system. Fig. -
Page 35: Gear Unit With Heating
6.6.3 Gear unit with heating Never switch on the heating elements, unless complete immersion of the heating element in the oil bath is ensured. Fire hazard! • Wire the temperature monitor electrically. • Wire the heating system electrically. • Wire the level monitoring device electrically. 6.6.4 Gear unit with oiltemperature monitoring system •... -
Page 36: Screwconnection Classes, Tightening Torques And Initialtensioning Forces
Screwconnection classes, tightening torques and initialtensioning forces 6.9.1 Screwconnection classes The specified screw connections are to be fastened applying the tightening torques specified in the table below. Table 7: Screwconnection classes Screw- Distribution of Tightening procedure connection emitted torque on (Usually the tightening processes lie within class the tool... - Page 37 Nominal Strength Initial-tensioning force Tightening torque thread class for screw-connection classes for screw-connection classes diameter of the bolt from table 7 from table 7 M min. 170000 109000 68000 1210 1040 10.9 243000 155000 97000 1720 1480 1330 12.9 284000 182000 114000 2010...
-
Page 38: Startup
Startup Observe the instructions in section 3, "Safety instructions"! The gear unit must not be started up, if the required instructions are not available. Procedure before startup 7.1.1 Removal of preservative agent The location of the oildraining points is marked by an appropriate symbol in the dimensioned drawing in the gearunit documentation (see item 5.2). -
Page 39: Filling With Lubricant
The quality of the oil used must meet the requirements of the separately supplied BA 7300 instructions manual, otherwise the guarantee given by Siemens will lapse. We urgently recommend using one of the oils listed in table "T 7300" (for a link, see the BA 7300 document supplied separately), because they have been tested and meet the requirements. -
Page 40: Oil Quantities
In case of gear units fitted with forced lubrication or an oilcooling system, the oil circuit must also be charged with oil. To do this, briefly start up the gear unit with the addon pump (observing the description in section 8). •... -
Page 41: Startup
Table 10: Grease quantities for the lower outputshaft bearing for shutdown period > 36 months Grease quantity (standard value in kg) for gear-unit size Type H2NV 0.600 0.800 0.900 1.100 1.300 1.700 1.800 2.200 The lubricating points are identified with the following identification plate. Fettschmierstelle Lubricating point g [ ] lithiumbased grease... -
Page 42: Gear Unit With Backstop
7.2.3 Gear unit with backstop Observe details in item 5.7, "Backstop"! Before startup, check whether the backstop can be turned manually in the freewheeling direction without exerting undue force. Observe the directionofrotation arrows on the housing. To avoid damaging the backstop or the gear unit, the motor must not be run adversely to the stop direction of the gear unit. -
Page 43: Startup At Low Temperatures
7.2.4 Startup at low temperatures Gear units with polereversing or frequencycontrolled motor must be started with minimum speed. 7.2.4.1 Type fitted with flangedon pump In case of oilsump temperatures lower than 16 °C the gear units must be heated up. To do so, only the fitted heating elements may be used. -
Page 44: Removal From Service
Removal from service • Switch off the drive unit. Secure the drive unit to prevent it from being started up unintentionally. Attach a warning notice to the start switch. In addition the gear unit must be secured to the fan at the output side in such a manner that the fan cannot drive the gear unit. -
Page 45: Exterior Preservation
7.3.2 Exterior preservation 7.3.2.1 Exteriorpreservation procedure • Clean the surfaces. For separation between the sealing lip of the shaftsealing ring and the preservative agent, the shaft should be brushed with grease in way of the sealing lip. • Apply preservative agent. For preservative agent see table 6 in item 4.4.2. -
Page 46: Operation
Operation Observe the instructions in section 3, "Safety instructions", in section 9, "Faults, causes and remedy", and in section 10, "Maintenance and repair"! General The coating must not carry an electrostatic charge! The operator must ensure that highly effective mechanisms which can set up a charge in the coating are safely avoided. -
Page 47: Faults, Causes And Remedy
Siemens will not be bound by the terms of the guarantee or otherwise be responsible in cases of improper use of the gear unit, modifications carried out without Siemens’... - Page 48 Faults Causes Remedy Gear unit is oiled up. Inadequate sealing of housing Seal joints. covers and/or joints. Oil leakage from the gear unit. Inadequate sealing of housing Check and, if necessary, replace covers and/or joints. sealings. Seal joints. Radial shaftsealing rings Check radial shaftsealing rings and, defective.
- Page 49 Faults Causes Remedy Temperature at backstop too Damage to backstop. Contact Customer Service. high. - Check backstop and, Locking function fails. if necessary, replace. Pressure monitor triggers Pressure falls below the minimum Check oil level at room temperature alarm. pressure specified in the and, if necessary, top up oil.
-
Page 50: Leakage / Leaktightness
In 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 listed in the following overview. -
Page 51: 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 done with care and by duly trained and qualified personnel only. The following applies to all work in item 10.2: Switch the gear unit and addon components off. -
Page 52: General Oilservice Lives
Measures Periods Remarks Clean the oil filter Simultaneously with oil change See item 10.2.3. Replace wet-air filter As required See item 10.2.4. Clean fan and gear unit Depending on requirements, See item 10.2.5. at least every 2 years Type with oil-dam pipe: recharge Every 5000 operating hours See item 10.2.6. -
Page 53: Change Oil
10.2.2 Change oil As an alternative to the oilchange intervals indicated in table 13 (see item 10.1) it is possible to have an oil sample tested at regular intervals by the Technical Service of the relevant oil company and to have it released for further use. - Page 54 Fig. 22: Gearunit features for oil change Oil dipstick Screw plug for residualoil drainage Wetair filter / screw plug Screw plug with sealing ring Oildrain cock / oildrain plug Oil filter Screw plug for oil inlet Lubricating point A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation. •...
-
Page 55: Clean The Oil Filter
10.2.3 Clean the oil filter The oil filter consists of a bearer filter element with an additional finemesh inner filter. The medium flows through the housing, the dirt particles carried in the line being retained by the filter element and collected in the filter basket. •... -
Page 56: Clean Fan And Gear Unit
10.2.5 Clean fan and gear unit • The instructions in item 5.8.1 must be observed! Fig. 23: Gear unit fitted with fan Cover plate of the fan A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation. •... -
Page 57: Type With Oildam Pipe: Recharge With Grease
10.2.6 Type with oildam pipe: recharge with grease In case of prolonged storage (> 6 months) in a position which is different from the mounting position, a quantity of grease according to table 9 in item 7.1.2.2 should be re-packed prior to initial operation. For the correct type of grease, refer to the table "T 7300"... -
Page 58: Check Tightness Of Fastening Bolts
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 59: Spare Parts, Customer Service
When ordering spare parts, always state the following: Order number, item Type, size Part number Quantity 11.1 Spare parts and customerservice addresses When ordering spare parts or requesting a service specialist, please contact Siemens first (see section 2, "General notes"). BA 5060 EN 04/2011 59 / 62... -
Page 60: Declarations
12.1 Declaration of incorporation Declaration of incorporation in accordance with Directive 2006/42/EC, Annex II 1 B The manufacturer, Siemens Industriegetriebe GmbH, 09322 Penig, Germany, declares with regard to the partly completed machinery Cooling-tower gear unit H2NV Sizes 105 to 112 for driving an air-cooling installation for power stations: ‐... -
Page 61: Declaration Of Conformity
EC Directive 94/9/EC of 23.03.1994 and the legal requirements laid down for its implementation The manufacturer, Siemens Industriegetriebe GmbH, D-09322 Penig, Germany, declares that the equipment described in these assembly and operating instructions: Cooling-tower gear unit... - Page 62 Siemens AG Subject to modifications Industry Sector Mechanical Drives © Siemens AG 2011 Alfred-Flender-Straße 77 46395 Bocholt GERMANY www.siemens.com/drivetechnology...