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Summary of Contents for nord SK 7207
- Page 1 Intelligent Drivesystems, Worldwide Services B1050 Operating and Maintenance Instructions for DRIVESYSTEMS Industrial Gear Units SK 7207 - SK 15507...
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Page 2: Table Of Contents
Service and maintenance ................... 25 Service and maintenance intervals ................25 Service and maintenance work ..................25 Appendix ........................29 Versions and maintenance ................... 29 Lubricant quantities ....................... 31 Lubricants ........................33 Bolt torque values ......................35 Troubleshooting ......................36 www.nord.com B1050-GB-0213... -
Page 3: Notes
Strict compliance with the instructions in this Operating Manual is essential. Getriebebau NORD accepts no liability for damage to persons, materials or assets as a result of the non-observance of this Operating Manual, operating errors or incorrect use. General wearing parts, e.g. -
Page 4: Safety Information
All rotating components must be provided with guards. In standard cases, covers are fitted by NORD . The covers must always be used if contact protection is not provided by other methods. 1.5 Other documents... -
Page 5: Description Of Gear Units
Description of gear units 2.1 Type designations and gear unit types Versions / Options Helical gear units SK 7207, SK 8207, SK 9207, SK 10207 Foot mounting with solid shaft SK 11207, SK 12207, SK 13207, SK 15207 Hollow shaft version... -
Page 6: Name Plate
2. Description of Gear Unit 2.2 Name plate Example of a gear unit name plate. Explanation of the name plate Matrix – Barcode NORD gear unit type Operating mode Year of manufacture Serial number Rated torque of gear unit output shaft... -
Page 7: Storage, Transport, Preparation, Installation
3.2 Long-term storage Note! For storage or standstill periods in excess of 9 months, Getriebebau NORD recommends the long-term storage option. With the long-term storage option and the use of the measures listed below, storage for up to 2 years is possible. As the actual influences on the unit greatly depend on the local conditions, these times should only be regarded as guide values. -
Page 8: Transporting The Gear Unit
If geared motors have an additional eyebolt attached to the motor, this must not be used. When lifting with the ring bolts, there must be no oblique force. Figure 3-1: Gear unit lifting points For additional drive units and components, an additional lifting point may be necessary. www.nord.com B1050-GB-0213... - Page 9 Gear units with V-belt drive must only be transported with lifting straps (1) and lifting ropes (2) at an angle of 90° (vertical). The ring bolts on the motor must not be used for transportation. Figure 3-3: Transport of gear unit with V-belt drive -10- B1050-GB-0213 www.nord.com...
- Page 10 Gear units on motor swing base or base frame Gear units on a motor swing base or base frame must only be transported with vertically tensioned lifting ropes (1) or chains. Figure 3-4: Transport of gear unit with motor swing base or base frame www.nord.com B1050-GB-0213 -11-...
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Page 11: Preparing For Installation
Ensure that no aggressive or corrosive substances are present in the area surrounding the installation site or are subsequently expected during operation, which attack metal, lubricants or elastomers. In case of doubt, please contact Getriebebau NORD and take the recommended action. -
Page 12: Fitting Hubs On The Gear Shafts
F specified in the catalogue. Observe the correct tension, particularly on belts and chains. Additional loads due to unbalanced hubs are not permitted. The radial force must be applied to the gear unit as closely as possible. www.nord.com B1050-GB-0213 -13-... -
Page 13: Fitting Push-On Gear Units
The gear unit can be fitted to shafts with and without a shoulder using the fastening element (Option B). Tighten the bolt of the fastening element to the correct torque. (See Chapter 6.4 for tightening torque values) Figure 3-7: Assembly -14- B1050-GB-0213 www.nord.com... - Page 14 7 Disassembly of threaded rod 8 Disassembly element 9 Disassembly – threaded nut When assembling push-on gears with torque supports, the support must not be distorted. Distortion-free assembly is made easier if an elastic element (Option DG) is used. www.nord.com B1050-GB-0213 -15-...
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Page 15: Torque Support
The gear unit is aligned horizontally with the threaded bolt and the nuts of the torque support and must be secured with lock-nuts. Figure 3-10: Permissible installation deviations of the torque support 3.9 Fitting shrink discs Attention! The operating instructions for the shrink disc must be observed. -16- B1050-GB-0213 www.nord.com... -
Page 16: Fitting The Covers
182T 184T 210T size max. Maximum motor weight [kg] IEC motor size NEMA motor 250T 280T 324T 326T 365T size max. Maximum motor weight 1000 1500 [kg] Transnorm max. Maximum motor weight 1500 2200 3200 4400 [kg] www.nord.com B1050-GB-0213 -17-... - Page 17 6. Mount the motor to the adapter; do not forget to fit the gear rim or the sleeve. 7. Tighten the adapter bolts to the correct torque. (See Chapter 6.4 for torque values) Figure 3-11: Fitting the coupling to the motor shaft Attention! The operating instructions for the coupling must be observed. -18- B1050-GB-0213 www.nord.com...
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Page 18: Fitting The Cooling Coil To The Cooling System
3.13 Mounting the external cooling system (cooling unit) Attention! The separate manufacturer’s documentation must be observed for assembly. Connect the cooling system according to Fig. 3-14. Other connection plans can be agreed upon during consultation with NORD. www.nord.com B1050-GB-0213 -19-... -
Page 19: Retrospective Paintwork
3. Storage, Transport, Preparation, Installation Attention! With circulation lubrication (LC) use the connection diagram included by NORD. (1) Gear unit intake connection (2) Pump / cooling system intake connection (3) Cooling system pressure connection (4) Gear unit pressure connection (5) Temperature monitoring (optional) -
Page 20: Commissioning
Caution! The drive unit may only be put into operation after the cooling coil has been connected and put into operation. www.nord.com B1050-GB-0213 -21-... -
Page 21: Lubricant Cooling With External Oil/Water Cooler (Cooling System)
Fans require guards in order to prevent injuries. A cover can be used as a guard. If this does not achieve sufficient protection against contact according to the required protection type, the machinery and plant constructor must ensure this be means of special attached components. -22- B1050-GB-0213 www.nord.com... -
Page 22: Checking The Taconite Seals
Connect the pressure safeguard so as to be fully functional before starting operation for the first time. The pressure safeguard can only be used in combination with a monitoring system. Note! Evaluate the pressure safeguard after initially operating the pump, as pressure must be built www.nord.com B1050-GB-0213 -23-... -
Page 23: Checklist
Sec. 3.6 Are contact guards fitted to rotating components? Sec. 3.8 Is the cooling system connected? Sec. 3.14/4.3 Is a grease-filled gap visible with Taconite seals? Sec. 4.5 Has the pressure safeguard been functionally connected? Sec. 4.7 -24- B1050-GB-0213 www.nord.com... -
Page 24: Service And Maintenance
Have the gear unit repaired in case of leaks, e.g. dripping gear oil or cooling water, damage or cracks. Please contact the NORD service department. Check for running noises If the gear unit produces unusual running noises and/or vibrations, this could indicate damage to the gear unit In this case the gear should be shut down and a general overhaul carried out. - Page 25 Recommended grease: Petamo GHY 133N (see Section 6.2: Klüber Lubrication). Checking the oil filter The oil filters are quipped with a visual or electro-mechanical contamination indicator. If contamination is indicated, the oil filter must be replaced according to the operating instructions for the particular cooling system. -26- B1050-GB-0213 www.nord.com...
- Page 26 If an oil level vessel is used, fill the oil through the upper inlet (thread G1¼) until the oil level is set as described in Section 5.2. www.nord.com B1050-GB-0213 -27-...
- Page 27 The general overhaul must be carried out by qualified personnel in a specialist workshop with appropriate equipment in observance of national regulations and laws. We recommend that the general overhaul is carried out by the NORD Service department. -28- B1050-GB-0213...
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Page 28: Appendix
Figure 6-1: Position of the oil screws in the gear unit Installation orientation Thread A / E A / E Legend A / E A / E Oil drain Vent Oil level screw A / E A / E Closed Special oil level According to cover assembly www.nord.com B1050-GB-0213 -29-... - Page 29 Output at bottom (vertical) Standard installation, 3-stage (horizontal) Installation orientations for bevel helical gear units Drive at top (vertical) Standard installation, 2-stage (horizontal) Output at top (standing) Output at bottom (standing) Output at bottom (vertical) Standard installation, 3-stage (horizontal) -30- B1050-GB-0213 www.nord.com...
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Page 30: Lubricant Quantities
The stated filling quantities are guide values. The exact quantities vary according to the exact gear ratio. When filling, the precise quantity must be observed on the oil level indicator. Note! The values in brackets apply for circulation lubrication. Helical gear units SK 7207 SK 7307 SK 8207 SK 8307 SK 9207... - Page 31 282 ( 109 ) SK 15407 439 ( 184 ) 474 ( 149 ) 429 ( 194 ) 436 ( 187 ) SK 15507 439 ( 184 ) 474 ( 149 ) 429 ( 194 ) 436 ( 187 ) -32- B1050-GB-0213 www.nord.com...
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Page 32: Lubricants
This table shows comparable roller bearing greases from various manufacturers. The manufacturer can be changed for a given grease type. Getriebebau NORD must be contacted in case of change of grease type or ambient temperature range, as otherwise no warranty for the functionality of our gear units can be accepted. - Page 33 This table shows comparable lubricants from various manufacturers. The manufacturer can be changed within a particular viscosity or lubricant type. Getriebebau NORD must be contacted in case of change of viscosity or lubricant type, as otherwise no warranty for the functionality of our gearboxes can be accepted.
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Page 34: Bolt Torque Values
Screw connections in the strength Pipe and hose Threaded pin on classes Size Cap screws connections coupling 10.9 12.9 1150 1300 1600 2250 2650 2780 3910 4710 4470 6290 7540 6140 8640 16610 9840 13850 24130 G ½ G ¾ G1¼ www.nord.com B1050-GB-0213 -35-... -
Page 35: Troubleshooting
Gear unit malfunctions Malfunction Possible cause Remedy Oil too low or Unusual running noises, bearing damage or Consult NORD Service vibrations toothed wheel damage Oil escaping from gear unit or Defective seal Consult NORD Service motor Incorrect oil level or... - Page 36 NORD Drivesystems | Global vor Ort www.nord.com/locator Headquarters: Getriebebau NORD GmbH & Co. KG Rudolf-Diesel-Straße 1 22941 Bargteheide, Germany Fon +49 (0) 4532 / 289 - 0 Fax +49 (0) 4532 / 289 - 2253 info@nord.com, www.nord.com DRIVESYSTEMS Member of the NORD DRIVESYSTEMS GROUP...
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