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7

Inspection/maintenance

Checking the oil level

Assembly and Operating Instructions – M1..N Series Single-Stage Helical Gear Units

81

7.4

Checking the oil level

7.4.1

General information

Note the following when checking the oil level.

NOTICE

Improper checking of the oil level may result in damage to the gear unit.

Possible damage to property.

Check the oil level only when the gear unit has cooled down and is at a standstill.

Check the oil level again after a few operating hours.

When the gear unit is equipped with an oil dipstick and an oil sight glass, refer to
the oil dipstick for the correct oil level. The oil level of the oil sight glass is only a
guide value.

Elements for controlling the oil level, oil drain, and oil fill openings are indicated
on the gear unit by safety symbols.

7.4.2

Standard procedure

Oil level glass

Observe  the  notes  in  chapter 

"

Preliminary  work  regarding  inspection  and  mainte-

nance" (→ 

2

 77).

[1]

[1]

18014414013183115

1. The oil level must be between the markings [1].

2. Proceed as follows if the oil level is too low:

Open the oil fill plug.

Fill in oil of the same oil grade until the oil level is between the markings [1].

3. If you filled in too much oil, proceed as follows:

Adjust the oil level. The oil level must be between the markings [1].

4. Screw in the oil fill plug.

29203856/EN – 03/2020

Summary of Contents for M1 N Series

Page 1: ...chnology Drive Automation System Integration Services Assembly and Operating Instructions Industrial Gear Units M1 N Series Single Stage Helical Gear Units Torque Classes from 1 4 kNm to 189 kNm Editi...

Page 2: ...SEW EURODRIVE Driving the world...

Page 3: ...Transport 18 2 10 Storage and transport conditions 20 3 Gear unit structure 22 3 1 Overview of gear unit and mount on components 22 3 2 Nameplate 23 3 3 Type designation 24 3 4 Mounting position and...

Page 4: ...rmostat valve 69 6 Startup 71 6 1 Gear unit startup 71 6 2 Motor pump 74 6 3 External cooling and lubrication systems 75 6 4 Oil heater 75 6 5 Measuring the surface and oil temperature 75 6 6 Shutting...

Page 5: ...bly and Operating Instructions M1 N Series Single Stage Helical Gear Units 5 9 1 Troubleshooting information 94 9 2 Service 94 9 3 Possible malfunctions remedy 95 9 4 Waste disposal 97 10 Address list...

Page 6: ...ucture of the safety notes 1 2 1 Meaning of signal words The following table shows the grading and meaning of the signal words for safety notes Signal word Meaning Consequences if disregarded DANGER I...

Page 7: ...2 3 Structure of embedded safety notes Embedded safety notes are directly integrated into the instructions just before the de scription of the dangerous action This is the formal structure of an embed...

Page 8: ...ndicate the decimal separator Example 30 5 kg 1 5 Product names and trademarks The brands and product names in this documentation are trademarks or registered trademarks of their respective titleholde...

Page 9: ...ure that the persons who work on the product pay attention to the following regula tions conditions documentation and information National and regional safety and accident prevention regulations Warni...

Page 10: ...o are trained appropriately The purpose of the instruction is to give persons the ability to perform the required tasks and work steps in a safe and correct manner 2 4 Designated use The industrial ge...

Page 11: ...ols Meaning Oil Indicates the oil dipstick Oil Indicates the oil level glass Oil Indicates the oil sight glass Oil Indicates the oil filling location Also serves as proper venting during the oil chang...

Page 12: ...d serves to locate the grease drain Helps avoid bearing damage Helps avoid errors caused by lack of understanding Read the in formation in the operating instructions For pivoted mounting positions thi...

Page 13: ...em voor de inbedrijfstelling conform technische handleiding instellen Hamulec nie jest ustawiony fabrycznie PRECAUCI N VOORZICHTIG OSTRO NIE 18855199 Posibles da os materiales EN DE F ES NL PL Mo liwe...

Page 14: ...The gear unit is protected against corrosion with VCI VORSICHT NOTICE ATTENTION PRECAUCI N VOORZICHTIG OSTRO NIE 18977421 EN DE F ES NL PL VCI Getriebe ist mit VCI rostgesch tzt Nicht ffnen M gliche...

Page 15: ...erty Prior to startup fill in oil according to operating instructions Tandwielkast wordt zonder olie geleverd Mogelijke materi schade V r de inbedrijfstelling olie conform technische handleiding bijvu...

Page 16: ...of the oil dipstick Indicates the position of the oil level glass Indicates the position of the oil sight glass Indicates the position of the relubrication points Indicates the position of the relubr...

Page 17: ...M1 N Series Single Stage Helical Gear Units 17 2 8 Symbols on the packaging The symbols on the packaging must be observed They have the following meaning Up Keep dry Center of gravity Fragile Protect...

Page 18: ...anger zone Use suitable sufficiently rated and undamaged handling equipment Consider the gear unit dimensions the center of gravity and the weight that has to be moved when selecting lifting equipment...

Page 19: ...e gear unit without oil fill If this is not possible note that the weight indicated on the nameplate refers only to the gear unit without oil fill and replace the breather with a screw plug The gear u...

Page 20: ...r units that are operated with food grade lubricants Contact SEW EURODRIVE in such cases 2 10 2 Exterior corrosion protection The following measures are taken for exterior corrosion protection Anti co...

Page 21: ...Storage location Storage duration Standard corrosion pro tection standard packaging Under roof and enclosed at constant temperature and atmospheric humidity 5 C 60 C 50 relative humidity No sudden te...

Page 22: ...3 Gear unit structure 3 1 Overview of gear unit and mount on components The M1 N series consists of single stage helical gear units The following figure shows the unit structure 4 2 1 3 6 5 7 1293230...

Page 23: ...Year 1743 895 0 13 31188077323 Type Type designation No Serial number PK1 kW Operating power on the input shaft HSS MK2 Nm Gear unit output torque n1 rpm Input speed HSS n2 rpm Output speed LSS min M...

Page 24: ...l gear unit parallel shafts S Output shaft type S solid shaft F Gear unit mounting F foot mounting 50 Gear unit size 10 20 30 40 50 60 70 80 90 100 110 120 N Identification new series 3 4 Mounting pos...

Page 25: ...ge Helical Gear Units 25 3 5 Shaft positions The shaft positions 1 to 4 shown in the following figure apply to solid output shafts LSS 4 3 2 1 12868535307 3 6 Directions of rotation The direction of r...

Page 26: ...ination such as applica tions outdoors subject to direct weathering According to corrosivity ca tegory C3 moderate Suitable for environments with high humidity and oc casionally severe atmo spheric an...

Page 27: ...unit The gear unit is equipped with a pump shaft end pump or motor pump The oil level is low and might even be reduced when compared to splash lubrication The gearings and bearing parts that are not i...

Page 28: ...ther 3 Oil drain 2 Oil level glass Visual oil level check The following types are available as standard for gear units in M1 mounting position with splash lubrication Oil level glass Oil dipstick opti...

Page 29: ...mp The maintenance free shaft end pump 1 can be used for both directions of rotation 1 9007212223271819 INFORMATION For operation with variable input speeds consult SEW EURODRIVE The standard scope of...

Page 30: ...lical Gear Units 30 4 2 Motor pump The motor pump 1 is suitable for operation in both directions of rotation 1 31256464907 The motor pump consists of the following Pump motor Coupling between pump mot...

Page 31: ...unted to raise the thermal rating or when the ambient conditions change after gear unit startup The direction of rotation of the gear unit does not influ ence the operation of the fan The following mo...

Page 32: ...ermal rating of the gear unit by cooling the oil bath The cooling coil is placed in the oil bath of the gear unit The operator must ensure that the minimum flow rate specified in the order documents i...

Page 33: ...ture is low Oil heating is required to ensure lubrication during startup at low ambient temperature e g cold start of the gear unit The oil heater consists of 3 basic parts Heating element 1 in the oi...

Page 34: ...MATION The unit structure is described in the manufacturer s documentation of the oil water cooler for pressure lubrication 4 8 Temperature sensor PT100 The PT100 temperature sensor can be used to mea...

Page 35: ...igura tion such as regarding oil flow rate oil pressure and oil temperature If the the gear unit is designed for operation with a customer supplied pressure lu brication system the gear unit must not...

Page 36: ...er clogging 5 Pressure gauge A3 Temperature monitor 7 Pressure switch A4 Flow indicator 8 Gear unit A5 Check the valve A1 Visual indicator of filter clogging A5 Check the valve RA Water inflow RB Wate...

Page 37: ...ns M1 N Series Single Stage Helical Gear Units 37 4 11 Thermostat valve The valve serves for regulation of the water flow in the oil water cooler or in the cool ing coil of the gear unit 1 2 5 4 3 312...

Page 38: ...enches Torque wrench Mounting device Compensation elements shims spacer rings if necessary Fasteners for input and output elements Lubricant e g NOCO fluid from SEW except for hollow shaft gear units...

Page 39: ...rator s machine against unintentional movement when installing or removing the gear unit Before releasing shaft connections make sure that there are no active torsional moments present tensions within...

Page 40: ...ell as the breather plugs are freely accessible When installing a filter in the cooling unit make sure there is sufficient height for removing the filter element and the filter hood Use plastic insert...

Page 41: ...No harmful oils acids gases vapors radiation etc in the vicinity NOTICE Danger due to insufficiently cleaned flange surfaces Possible damage to property Clean the output shafts and flange surfaces th...

Page 42: ...ndation drawings with all necessary construction and dimension details should be available When mounting the gear unit on a steel construction ensure adequate rigidity to avoid harmful vibrations and...

Page 43: ...Stud bolts with nut and hex head screw 5 Hex nut 2 Shims 6 Foundation bolt 3 Hex nut 7 Base support 4 Foundation support Tightening torques Size M1 N Bolt nut Tightening torque Strength class 6 8 Nm 1...

Page 44: ...ear unit tighten the 3 nuts of the foundation screws used for alignment Carefully insert the fourth foundation screw into the base support and tighten it securely When doing so make sure that the posi...

Page 45: ...ounting accuracy when aligning JE Y 1 12868472971 When aligning the gear unit make sure that the mounting tolerances for the flatness of the foundation are not exceeded ymax values in the following ta...

Page 46: ...rs Bolt nut Tightening torque Strength class 6 8 Nm M6 7 9 M8 19 5 M10 38 M12 67 M16 160 INFORMATION Do not lubricate the bolts during assembly 5 5 4 Aligning the shaft axis WARNING Shafts can break i...

Page 47: ...hen filling it into the gear unit The flowability can be enhanced by prior heating e g by using an oil heater For gear units with external supply pipes e g oil supply systems establish the connections...

Page 48: ...with shaft end pump motor pump or customer in stalled cooling system are vented before taking them into operation the first time For gear units that are delivered with oil fill the breather must be i...

Page 49: ...nto the shaft end by hitting them with a hammer This may damage the bearing the housing and the shaft If belt pulleys are used make sure the belt is tensioned correctly in accordance with the manufact...

Page 50: ...uge a1 a2 a D a b f2 f1 This method only achieves an accurate result when the deviation of the coupling faces is eliminated by turning both coupling halves by 180 and then calculating the mean value f...

Page 51: ...n the faces of the coupling halves must be elimina ted As an alternative you can use two mi crometer dials positioned on the opposite sides of the coupling to calculate the differ ence of the two dial...

Page 52: ...5 10 Mounting the couplings 5 10 1 ROTEX coupling 1 1 2 Design of the ROTEX coupling 25485508747 1 Coupling hub 2 Girth gear The low maintenance elastic ROTEX coupling is capable of compensating radia...

Page 53: ...sions Set screw E mm s mm dH mm dW mm L1 aluminum cast iron nodu lar cast iron mm L1 steel mm G Tightening torque Nm 14 13 1 5 10 7 M4 2 4 19 16 2 18 12 26 M5 4 8 24 18 2 27 20 30 M5 4 8 28 20 2 5 30...

Page 54: ...connection 1 next to the intake pipe intake tube on the valve housing Fill the suction line SUC and the pump with oil 2 Turn the pump so that the gear pump is lubricated with oil 3 Make sure that the...

Page 55: ...n Observe the following notes if you use a fan When protective devices for couplings or similar are installed on gear units equipped with a fan sufficient clearance must be provided for cooling air in...

Page 56: ...rn pipe in such a way that the cooling coil is perman ently flooded by cooling water Refer to chapter Requirements on the water quality to determine the permitted cooling media Cooling water temperatu...

Page 57: ...r cooling cartridge in particular at high temperatures and in this way impair the performance Take these de posits into account when selecting the water cooling cartridge for extremely hard wa ter The...

Page 58: ...m up to 2 2 to 20 20 Iron dissolved to 10 0 10 Manganese dissolved to 1 0 1 Free chlorine to 5 permanently 0 5 mg l 5 intermittently 3 0 mg l Sulfide 0 Ammonia 15 mg l usually good resistivity 0 corro...

Page 59: ...ipes Brackish water We recommend using copper nickel pipes Mixture of sea water and river water 5 15 Oil water cooler for pressure lubrication INFORMATION The installation assembly is described in the...

Page 60: ...ages NOTICE An improper change of the mounting position may cause the gear unit heater to mal function Possible damage to property Do not change the mounting position without prior consultation with S...

Page 61: ...SO VG Trip point for pressure lubrication C 460 320 220 Mineral oil 20 15 10 Synthetic oil 15 10 5 The oil heater is deactivated when the set temperature is exceeded by 8 to 10 C Thermostat and oil he...

Page 62: ...n resistor element Wiring examples with 230 400 V supply voltage N L1 L1 N 25540687499 1 phase Voltage 230 V Phase voltage 230 V Line voltage 400 V Resistor element voltage 230 V N L1 L2 L3 L1 N L3 L2...

Page 63: ...re1 Basic thermostat structure example 1 Adjustment knob 5 Capillary tube length up to 10 m 2 Degree of protection IP66 IP54 in units with external reset 6 Stainless steel bellows 3 2 PG 13 5 for cabl...

Page 64: ...following cases 3 phase voltage supply 2 heating rods Current ratings exceed nominal values of thermostat 5 17 5 Adjusting the setpoint The setpoint is usually set at the factory Proceed as follows f...

Page 65: ...s M1 N Series Single Stage Helical Gear Units 65 C C C B A 30 10 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 25 20 15 10 5 0 5 5 16 7_figure2 Nomogram of the included differential 25544698507 A Setting rang...

Page 66: ...2 Electrical connection 3 2 1 359158539 1 2 Resistor element connection 5 18 3 Technical data Design with thermometer pocket and changeable measuring insert Sensor tolerance in K 0 3 0 005 T correspon...

Page 67: ...291 mm L 11 17 g 11 12936224907 5 19 2 Sensor 40000 and connection piece 13008 to be connected Dimensions of the SPM adapter with sensor g M8 L 17 106 195 284 mm L 40 11 17 g 11 12936227339 5 19 3 Mou...

Page 68: ...19 4 Mounting the shock pulse sensor 1 2 12936229771 To mount the shock pulse sensor onto the SPM adapters proceed as follows 1 Check if the SPM adapter 1 is tightly secured tightening torque 15 Nm 2...

Page 69: ...139 5 20 2 Settings The valve can be set using the adjustment knob 1 so that the desired temperature is reached The temperature is controlled using a sensor 5 located in the oil bath Turning the adjus...

Page 70: ...le Stage Helical Gear Units 70 5 20 3 Technical data Technical data Maximum working pressure1 10 bar Minimum working pressure1 2 bar Maximum presser difference 7 bar Maximum water temperature1 25 C 40...

Page 71: ...uitable protection covers Ensure that installed protection covers are sufficiently attached CAUTION Danger due to unsecured mount on components e g keys Possible injury to persons due to falling parts...

Page 72: ...alling the gear unit check to see that all retaining screws are tight Make sure that the alignment has not changed after tightening the mounting ele ments If there are any oil drain valves ensure that...

Page 73: ...The run in phase takes approx 10 hours Note the following during the running in phase Verify the power values specified on the nameplate because their frequency may be a decisive factor for the servic...

Page 74: ...h motor pump at low ambient temperatures For more information refer to chapter Limit temperature for gear unit startup Observe chapter Filling the gear unit with oil 2 47 6 2 2 Venting the motor pump...

Page 75: ...owing requirements are met The minimum required oil flow rate The minimum required cooling capacity The monitoring of the oil temperature The monitoring of the oil pressure INFORMATION When using a mo...

Page 76: ...approx 2 3 weeks If the gear unit is not operated for a period longer than 6 months additional corro sion protection is required Corrosion protection for the inside of gear units with splash lubricat...

Page 77: ...hine against unintentional movement when installing or removing the gear unit Before releasing shaft connections make sure that there are no active torsional moments present tensions within the system...

Page 78: ...in the accompanying operating instructions Use only original spare parts according to the delivered spare and wearing parts list If you remove the gear unit cover you must apply new sealing compound...

Page 79: ...ase Check the breather replace if necessary At least every 12 months depending on the operating conditions Change mineral oil Check whether retaining screws are tightly secured Check the condition of...

Page 80: ...lyalphaolefin based PAO lubricants are used for lubrication The synthetic lubricant CLP HC according to DIN 51502 shown in the following illustration corresponds to the PAO oils 5000 10000 15000 20000...

Page 81: ...s refer to the oil dipstick for the correct oil level The oil level of the oil sight glass is only a guide value Elements for controlling the oil level oil drain and oil fill openings are indicated on...

Page 82: ...oil fill plug Fill in new oil of the same type via the oil fill plug up to the mark 1 Check the oil level again 5 Screw in the oil dipstick 7 5 Checking the oil consistency Observe the notes in chapte...

Page 83: ...nameplate of the gear unit The oil quantity specified on the nameplate is an approximate quantity The mark on the oil dipstick or oil level glass is the decisive indicator of the correct oil quantity...

Page 84: ...ner underneath the oil drain plug 3 2 Remove the oil fill plug breather plug 1 3 Open the oil drain plug 3 and drain all the oil completely 4 Re insert the oil drain plug 3 5 Fill in new oil of the sa...

Page 85: ...te nance 2 77 7 8 Shaft end pump INFORMATION Read the separate operating instructions regarding the Shaft end pump SHP first before beginning inspection maintenance work Observe the notes in chapter P...

Page 86: ...ements by scratching or scraping Clean the tubular heating elements with solvent Replace the defective heating elements Screw the heating element out of the gear unit housing 4 Apply LOCTITE 577 to th...

Page 87: ...se Use moderate pressure to force about 30 g of grease into each lubrication point until new grease leaks out of the sealing gap In this way used grease including contaminants and sand is pressed out...

Page 88: ...ratures or oil change intervals SEWEURODRIVE recommends using oils based on polyalfaolefin PAO Mineral oil Standard Lubrication oils are divided into ISO VG viscosity classes according to ISO 3448 and...

Page 89: ...viscosity of the oil is larger than 2000 cSt in case of pressure lu brication 8 1 2 Bearing greases Standard If grease is used to lubricate the bearings this is specified on the gear unit and in the...

Page 90: ...permitted lubricants for SEW EURODRIVE industrial gear units Observe the abbreviations used the meaning of shading and the notes Symbols Designation CLP Mineral oil CLP HC Synthetic polyalphaolefin E...

Page 91: ...EXACO LUBRICATION 20 5 50 0 CLP CC VG 1000 CLP CC 45 5 60 15 30 40 20 Mobil 4 3 3 VG 320 VG 68 VG 150 Renolin Unisyn CLP 320 Renolin High Gear Synth 320 Renolin Unisyn CLP 220 Renolin High Gear Synth...

Page 92: ...ear stages and gear ratio The oil supply system might influence the oil level The fill quantities specified on the nameplate are guide values and refer only to the gear unit The required oil level dep...

Page 93: ...Rembrandt EP2 Mobil Mobilux EP 2 Shell Gadus S2 V220 2 Texaco Mulifak EP2 Total Multis EP 2 Castrol Obeen FS1 Group 23 Fuchs Plantogel 21 Group 34 1 Preferably use greases also used by the manufactur...

Page 94: ...hot gear unit oil Serious injury Let the gear unit cool down before you start working on it Carefully remove the oil level plug and oil drain plug NOTICE Improper handling of the gear unit and the mot...

Page 95: ...h Too much oil Check the oil level correct if necessary Oil too old Check when the oil was last changed change the oil if necessary Oil is heavily contaminated Analyze the oil to determine the cause t...

Page 96: ...screw Fittings loosened Retighten the fitting and screw No oil pump suction Air in the suction line of the oil pump Fill oil into the suction line and the oil pump vent the pump at the pressure side...

Page 97: ...cess or con tact a specialist waste disposal company If possible divide the product into the follow ing categories Iron steel or cast iron Stainless steel Aluminum Copper Plastics The following materi...

Page 98: ...es Minsk Foreign unitary production enterprise SEW EURODRIVE RybalkoStr 26 220033 Minsk Tel 375 17 298 47 56 298 47 58 Fax 375 17 298 47 54 http www sew by sales sew by Belgium Assembly Sales Service...

Page 99: ...njin 300457 Tel 86 22 25322612 Fax 86 22 25323273 http www sew eurodrive cn info sew eurodrive cn Assembly Sales Service Suzhou SEW EURODRIVE Suzhou Co Ltd 333 Suhong Middle Road Suzhou Industrial Par...

Page 100: ...Egypt for Engineering Agencies Building 10 Block 13005 First Industrial Zone Obour City Cairo Tel 202 44812673 79 7 lines Fax 202 44812685 http www copam egypt com copam copam egypt com Estonia Sales...

Page 101: ...ingen Tel 49 7253 9254 0 Fax 49 7253 9254 90 oestringen sew eurodrive de Service Competence Center Mechanics Mechatronics SEW EURODRIVE GmbH Co KG Ernst Blickle Stra e 1 76676 Graben Neudorf Tel 49 72...

Page 102: ...437 06 50 http www sew eurodrive hu office sew eurodrive hu Iceland Sales Reykjavik Varma V laverk ehf Knarrarvogi 4 104 Reykjav k Tel 354 585 1070 Fax 354 585 1071 http www varmaverk is vov vov is I...

Page 103: ...599512 http www liraz handasa co il office liraz handasa co il Italy Assembly Sales Service Milan SEW EURODRIVE S a s di SEW S r l Co Via Bernini 12 20020 Solaro Milano Tel 39 02 96 980229 Fax 39 02 9...

Page 104: ...2 Parque Industrial Qu retaro C P 76220 Quer taro M xico Tel 52 442 1030 300 Fax 52 442 1030 301 http www sew eurodrive com mx scmexico seweurodrive com mx Sales Service Puebla SEW EURODRIVE MEXICO S...

Page 105: ...a Mora SEW EURODRIVE PARAGUAY S R L De la Victoria 112 Esquina nueva Asunci n Departamento Central Fernando de la Mora Barrio Bernardino Tel 595 991 519695 Fax 595 21 3285539 sewpy sew eurodrive com p...

Page 106: ...2 33595 200 http www sew eurodrive sk sew sew eurodrive sk Slovenia Sales Service Celje Pakman Pogonska Tehnika d o o UI XIV divizije 14 3000 Celje Tel 386 3 490 83 20 Fax 386 3 490 83 21 pakman siol...

Page 107: ...61 417 1717 Fax 41 61 417 1700 http www imhof sew ch info imhof sew ch Taiwan Sales Taipei Ting Shou Trading Co Ltd 6F 3 No 267 Sec 2 Tung Huw S Road Taipei Tel 886 2 27383535 Fax 886 2 27368268 Telex...

Page 108: ...E INC Pureland Ind Complex 2107 High Hill Road P O Box 481 Bridgeport New Jersey 08014 Tel 1 856 467 2277 Fax 1 856 845 3179 csbridgeport seweurodrive com Midwest Region SEW EURODRIVE INC 2001 West Ma...

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Page 112: ...SEW EURODRIVE Driving the world SEW EURODRIVE GmbH Co KG Ernst Blickle Str 42 76646 BRUCHSAL GERMANY Tel 49 7251 75 0 Fax 49 7251 75 1970 sew sew eurodrive com www sew eurodrive com...

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