Siemens 680 manuals
Lawn and Garden > Portable Generator
When we buy new device such as Siemens 680 we often through away most of the documentation but the warranty.
Very often issues with Siemens 680 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Portable Generator Siemens 680 is responsible for and what options to choose for expected result.
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38 pages 899.84 Kb
2 Table of ContentsTABLE OF CONTENTS OPERATION SAFETY PROCEDURE INTRODUCTION MAINTENANCE INSTALLATION SPARE PARTS MOTOR SERVICE RECORD VIBRATION ANALYSIS SHEET NOTES Note 3 Safety ProceduresQualified Person: Qualified Is trained and authorized to energize c.Is trained in rendering first aid Danger: Danger Warning: Warning Caution: Caution Motors should be installed and grounded per local and national codes 4 WarrantyReceiving 5 HandlingTemporary Storage Type Designations Ventilation 6 InstallationMotor Dimensions Location Select a location for the motor and driven unit that will: 2.Provide adequate space for motor removal without shifting the driven unit Foundation Mounting DO NOT TIGHTEN UNTIL AFTER ALIGNMENT Coupling of Sleeve Bearing Motors 1.Laminated Metal Disk Type 2.Rubber Biscuit Type (Designed for the Speed) Bearing Replacement 3.Pin and Bushing Type 4.Gear Type 7 External WiringStarting and overload control devices must be matched to motor rating. For safety or convenience they may need to be installed some distance from the motor Follow the control manufacturer’s instructions to make proper installations and connections. Observe the following: If motor is Changing Direction of Rotation Look for rotation plates usually mounted on opposite drive end of the motor Alignment Parallel Alignment 8 Angular AlignmentFoot Plane To determine proper foot plane: V-Belts Hot Alignment 9 Completing Mechanical InstallationDoweling Doweling Inserting Dowel Pins Vibration Force Feed Lubrication 10 AlarmTrip Timer Trip (Shutdown) Setting (1) Winding Temperature Class B Insulation Class F Insulation Motor Bearing Temperature (Thermocouple or RTD’s) Sleeve Bearing Antifriction Bearing Ground Fault 0.2 sec. (2) Primary Circuit Instantaneous Overcurrent • With ½ Cycle Delay 1.8 times Locked Rotor Amps (2) Without Time Delay 2.4 times Locked Rotor Amps (2) Maximum Voltage 110 % of Rated Voltage 10 sec Minimum Voltage 90 % of Rated Voltage Maximum Frequency Deviation Maximum of Voltage Plus Frequency Deviation Maximum Voltage Unbalance (3) 15 sec Maximum Current Unbalance (3) Suggested Vibration Limits RPM 900 and Slower Shaft (mils, pk-to-pk) Housing (in./sec.) (1)Maximum time at maximum condition before control device is to operate (2)Increase as necessary to avoid nuisance trips (3)This is the maximum deviation from the average of the three phases 11 OperationInitial Start Oil Circulating Systems For motors with oil circulating systems, proceed as follows before startup; 1.Fill motor reservoirs to normal level (see motor outline drawing) 2.Follow instructions provided by the oil circulating system supplier 3.Put oil circulating system into operation before starting motor Normal Operation Voltage/Frequency Variation 12 Trouble ShootingTROUBLE POSSIBLE CAUSES CORRECTION 14 MaintenancePreventive Maintenance Maintenance Checklist Inspection Antifriction Bearing Air Deflector 15 1.Remove the parting bolts at the horizontal splitRemove the bolts at the outer circumference of the upper half of the 3.Pull the upper bracket away from the face of the frame and remove bracket Sleeve Bearing - 1120 Frames 3.Air deflectors on sleeve bearing motors are horizontally split Cleanliness Loading Temperature When operating at full load: When operating at 1.15 service factor load: 16 VibrationMost problems can be detected when inspected visually. Check for; 2.Accumulation of dirt on fan or rotor Associated equipment Foundation construction History Corrective Maintenance Low Insulation Resistance Factors that usually cause low insulation readings are: 1.Dirty windings (oil, dust, grease, salt, etc.) 2.Excessive moisture 3.Mechanically damaged insulation 4.Heat deterioration Cleaning Rotor Cleaning Remove rotor. Inspect air vents and remove any obstructions Stator Cleaning MICLAD™ is a Siemens trademark 17 Insulation Resistance2.3 + 1 = 3.3 (megohms) Drying Insulation 1.A warm air oven 2.Electric strip heaters 3.Circulating currents through the coils Insulation Drying Temperature Class “B” Class “F” Class “H” 200°F 245°F 275°F 94°C 118°C 135°C Warm Air Oven Drying 1.Remove bearing housings 2.Remove rotor Electric Strip Heater Drying 3.Direct a fan on stator to carry away the moisture Circulating Current Drying 2.Center the rotor in the stator core 4.Direct fan on unit to blow away excessive moisture 18 BearingsBearing Construction Insulated Bearings 19 Antifriction BearingsSleeve Bearings Oil Rings 20 Oil SealsThe primary purposes of the oil seal are: 1.To prevent the entrance of dirt into the bearing cavity 2.To retain the oil in the bearing cavity 3.To provide pressure regulation in the bearing cavity important that the piping and venting for these oil seals be kept clean Bearing Clearance Too Large Cavity Pressures For the correction of a high or low reading it is important that: 1.The parts and joints around the bearing cavity and oil seals are sealed 3.Auxiliary equipment extending into close 4.All fixedoil seals are centered properly on the shaft 21 Sealing PartsApply sealant as follows: Surfaces shall be clean of dirt, grease, and oil sealant. Use a gap when mating surfaces are together 4. Assemble parts Bearing Lubrication Grease Lubricated Antifriction Bearings Operating environment or application may dictate more frequent lubrication Typical Motor Control Settings Procedure for relubrication: 1.Stop the motor and lock out the switch 3.Remove the drain plug and clean out any hardened grease 6.Stop the motor and lock out the switch 7.Re-installthe drain plug 8.Put the motor back in operation The amount of grease for bearings may be calculated by the following: G = 0.1 x D x B Where: G = Amount of grease in fluid ounces D = Outside diameter of bearing in inches B = Width of bearing in inches 22 1.Ring out of round (should be round to 0.062 inch)2.Fouling on a projection of the bearing bushing 5.Oil too cold or viscous, or oil level too high 6.Shaft not level – oil ring tends to bind Force Feed Lubrication Checking Sleeve Bearing Clearance 23 Bearing ReplacementFor typical antifriction bearing configuration, see Figure The complete A.F.B.M.A 2.Identifying numerals and manufacturer stamped on the bearing Bearing tolerance class, i.e 4.Internal radial clearance, i.e. – A.F.B.M.A.-3(Clearance Class Three) 5.Electric motor quality To Replace Antifriction Bearings 1.Remove bolts holding end caps to housings 2.Remove bolts holding bearing housings to yoke 3.Remove bearing housings 4.Remove the bearing with a puller. See Figure 5.Check shaft and housing diameter for proper size with micrometer 7.Let bearing cool - pack bearing caps with the proper grease 8.Reassemble end caps and housings Figure 3. Ball Bearing Construction Figure 4. Removing Bearing with a Puller 24 Sleeve BearingSleeve Bearing Replacement 500 and 580 Frames (See Figure 5) MAINTENANCE, SEALING PARTS 680 and 800 Frames (See Figure 6) 25 1120 Frame (See Figure 7)End Float – Sleeve Bearings 27 Spare PartsIdentification Parts Identification Siemens Industry 29 Bearing HousingBearing Bushing Oil Seal Oil Ring Air Seal Shims Oil Sight Glass Rotor Shaft End Cover 31 Stator CoreInternal Fan Stator Yoke Stator Coils Shaft Seal TEAAC Heat Exchanger Fan Housing Inner End Cap External Fan Ball Bearing Motor, Auxiliary Blower Rotor Core TEWAC Top Cover Insulating Adapter TEWAC Heat ExchangerFigure 12. 580 Frame Sleeve Bearings 33 External End CapTEAAC Heat Exchanger Motor, Auxiliary Blower TEWAC Heat External Oil Seal Internal Oil Seal 34 Bearing CapsuleMachine Seal Top Cover Bearing Liner Heat Exchanger 35 Serial NoHorsepower ______________ Type Speed Volts Amperes Hertz Insulation Class Temperature Rise Frame Size Owner Order No Item No Date Of Manufacture MACHINE TYPE BEARINGS SHAFT EXTENSION INSPECTION 36 Vibration Analysis Sheet*Dominant Frequency 37 Notes38 Siemens Industry
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