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Summary of Contents for SKF P253 DC Smart
- Page 1 Assembly Instructions Lubricant feed pump P253 DC Smart for progressive lubrication systems with Bluetooth Created on: 01.08.2023 Document no.: 951-171-056-EN Version: Read these instructions before installation or start-up of the product and keep them readily available for later consultation!
- Page 2 The special technical documents were prepared following Annex VII part B. Upon justifiable request, these special technical documents can be forwarded electronically to the respective national authorities. The authorized company for the compilation of the technical documentation is SKF (U.K.) Limited, 2 Canada Close, Banbury, Oxfordshire, OX16 2RT, GBR.
- Page 3 Appendix to Declaration of Incorporation in accordance with 2006/42/EC, Annex II, No. 1 B Description of the essential health and safety requirements according to 2006/42/EC, Annex I, which have been applied and fulfilled. Any essential health and safety requirements not listed here are not relevant to this product. Table 1 Appendix to Declaration of Incorporation Valid for: P253 - lubricant feed pumps...
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Page 4: Masthead
Training www.skf.com/lubrication We conduct detailed training in order to enable maximum safety and efficiency. We recommend taking advantage of this Berlin Plant training. For further information, contact your authorized SKF Motzener Strasse 35/37 dealer or the manufacturer. 12277 Berlin Germany Tel. -
Page 5: Table Of Contents
4.8 Tightening torques ..............23 Table of contents 4.9 Type identification code............24 4.9.1 Basic parameters and reservoir design ....24 Masthead ....................4 4.9.2 Pump elements ............26 Table of contents .................. 5 4.9.3 Voltage supply and electrical connections ..... 27 Safety alerts, visual presentation, and layout ......... - Page 6 15. Appendix ..................53 15.1.1 Terminal diagram for full and low-level signals on the reservoir cover ..............53 15.1.2 Terminal diagram for pump P253 DC Smart with bayonet connector ..............54 15.1.3 Terminal diagram for pump P253 DC Smart with rectangular connector and M12 connector .....
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Page 7: Safety Alerts, Visual Presentation, And Layout
Text layout: Safety alerts, visual • First-order bulleted lists: Items on a bulleted list start with a solid black dot and an indent. presentation, and layout – Second-order bulleted lists: If there is a further listing of subitems, the second-order bulleted list is used. While reading these instructions, you will encounter various 1 Legend: A legend explains the numbered contents of an symbols, illustrations, and text layouts intended to help you... -
Page 8: Safety Instructions
Only • If protective and safety equipment has to be dismantled, it original SKF spare parts and SKF accessories may be used. must be reassembled immediately after finishing the work, • Any unclear points regarding proper condition or correct and then checked for correct function. -
Page 9: Foreseeable Misuse
1.6 Foreseeable misuse 1.8 Prohibition of certain activities Any usage of the product other than as specified in this manual The following activities must be performed only by employees of is strictly prohibited. Particularly prohibited are: the manufacturer or authorized persons due to possibly •... -
Page 10: Note On The Type Plate
You can check this 1.14 Note on Pressure Equipment certification at skf.com/ or by scanning Directive the QR code shown here or the QR code on the pump. -
Page 11: Assembly, Maintenance, Fault, Repair
1.21 Assembly, maintenance, fault, 1.22 First start-up, daily start-up repair Ensure that: • All safety devices are fully present and functional Prior to the start of this work, all relevant persons must be • All connections are properly connected notified of it. At a minimum, the following safety measures must •... -
Page 12: Residual Risks
1.23 Residual risks Table 2 Residual risks Residual risk Possible in lifecycle Avoidance / Remedy Personal injury / property damage due A B C G H K Unauthorized persons must be kept away. Nobody is to falling of hoisted parts. allowed to be present below hoisted parts. -
Page 13: Lubricants
Solid lubricants may only be used after prior consultation with make the selection in consultation with the supplier of the SKF. When solid lubricants are used in lubrication systems, the lubricant. If you have no or little experience in selecting following rules generally apply: lubricants for lubrication systems, please contact us. -
Page 14: Overview, Functional Description
Filler nipple 3. Overview, functional Used for filling the pump. If the filler nipple (Fig. 6/6) is removed, the external grease return (from the pressure limiting description valves on the pump elements) can be connected to this port, using the applicable accessories. 3.1.1 Pumps without a follower plate Fig. - Page 15 Datalogger data. You can find plate the SKF eLube app in the Apple App Store and the Google Play Fig. 8 Store. Fig. 9...
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Page 16: Technical Data
4. Technical data 4.1 General technical data Table 3 Technical data of the pump Parameter Values Operating pressure Max. 350 bar Ambient temperature -40 °C to 60 °C -40 °C to 70 °C Feedable lubricants Lubricating greases up to and including NLGI 2, lubrication oils with at least 40 mm2/s (cST) at ambient temperature;... -
Page 17: Nominal Delivery Rates
Changes to the settings can be made with the SKF app for monitoring and adjusting Bluetooth-compatible SKF pumps. You can find the SKF app in the Apple App Store and the Google Play Store. Following registration, use of the app is free of charge. -
Page 18: Delivery Rate Charts For Typical Nlgi 2 Lubricants
4.2.2 Delivery rate charts for typical NLGI 2 lubricants Fig. 11 Fig. 10 Delivery rate chart for high-temperature grease Delivery rate chart for low-temperature grease NOTE The values specified in the delivery rate charts represent the average value between different high-temperature and low-temperature greases. -
Page 19: Principle Of Operation Of The Intermittent Low-Level Signal
4.3 Principle of operation of the 5 When the lubricant level in the reservoir drops so far that the resistance of the lubrication grease is no longer enough to intermittent low-level signal deflect the baffle plate (Fig. 12 to 13/2), the magnet Components of the intermittent low-level signal (Fig. -
Page 20: Operational Limits Of The Intermittent Empty Signal
4.4 Operational limits of the intermittent empty signal For the correct functioning of the intermittent empty signal, the following lubricant consistencies must be maintained. The correct functioning of the intermittent empty signal is not guaranteed above the specified temperature range. The lower temperature ranges are contingent on the suitability of the respective lubricant for these temperatures. -
Page 21: Hydraulic Connection Diagrams
4.5 Hydraulic connection diagrams Fig. 16 Fig. 18 Pump with a follower plate Pump without a follower plate Fig. 17 Fig. 19 Pump with a follower plate and with low-level signal Pump without a follower plate and with low-level signal Table 7 Legend to Figure Item... -
Page 22: Usable Reservoir Volume
4.6 Usable reservoir volume NOTE The usable reservoir volume in the reservoir design without follower plate is strongly dependent on the consistency (NLGI Grade) of the lubricant used and the ambient temperature. With high consistency and a low working temperature, more lubricant typically adheres to the inner surfaces of the reservoir and the pump, leaving less lubricant available for feeding. -
Page 23: Lubricant Volume When An Empty Pump Is Filled For The First Time
4.7 Lubricant volume when an empty pump is filled for the first time The following volumes of lubricant are required in order to fill a new empty pump up to the -MAX- mark on the reservoir. NOTE The difference between the lubricant volume required for initial filling and the nominal volume of the reservoir is due to the filling of the space in the pump housing up to the -MIN- mark on the reservoir. -
Page 24: Type Identification Code
4.9 Type identification code 4.9.1 Basic parameters and reservoir design P253 X X - LL X X XX - 123 - AC - 11 22 33 44 55 66 - P B SSS F Type series: P253 Pump P253 for grease or oil Corrosion protection class: Low- C3 design... - Page 25 P253 X X - LL X X XX - 123 - AC - 11 22 33 44 55 66 - P B SSS F Reservoir design: (For design combinations, see Table 13) Filling from above Filling from above, lockable cover Flat reservoir With standard follower plate With double-lip follower plate...
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Page 26: Pump Elements
4.9.2 Pump elements P253 X X - LL X X XX - 123 - AC - 11 22 33 44 55 66 - P B SSS F Pump elements: Position sequence: Right (Fig. 20/1), Center (Fig. 20/2) and Left (Fig. 20/3). For coding, see Table 14 Fig. -
Page 27: Voltage Supply And Electrical Connections
4.9.3 Voltage supply and electrical connections The P253 has six different connection options on the housing. These different connection positions are coded using six two-number groups in the type identification code. • The first digit in a two-digit number indicates the plug/socket on the housing •... -
Page 28: Control And Lubricant
Table 15 Possible connection types: Voltage versions Housing position Left Right Bottom Rear Bottom Rear Description √ Bayonet connector, 4/3-pin √ √ Socket M12, coding A (3-pin, floating, signal) √ √ Socket M12, coding B (1 piston detector) √ √ Socket M12, coding B (T connector, piston detector ) √... - Page 29 Versions of the IMS board Four different versions of the IMS boards with the same function are available for different mobile and industrial applications. The combination of the tree parameters Voltage supply, Installed circuit boards and Conformity define the IMS board version in use. Table 16 Coding of the versions of the IMS board Conformity...
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Page 30: Delivery, Returns, Storage
5.5 Storage conditions for products filled 5. Delivery, returns, storage with lubricant 5.1 Delivery For products filled with lubricant, the permitted storage temperature range is: After receipt of the shipment, it must be inspected for any minimum + 5 °C [+41 °F] shipping damage and for completeness according to the maximum... -
Page 31: Assembly
6. Assembly 6.2 Transporting the pumps 6.1 General safety instructions CAUTION Injury or pump damage due to improper Observe the safety instructions and the technical data in this securing or handling when transporting to manual. Additionally, during assembly pay attention to the the installation location following: •... -
Page 32: Mechanical Connection
6.3 Mechanical connection 6.3.1 Minimum mounting dimensions In order to have sufficient space for maintenance work or for the attachment of additional components for the construction of a centralized lubrication system on the pump, sufficient clearance should be provided for in every direction in addition to the specified dimensions. - Page 33 Fig. 23 Table 18 P253 minimum mounting dimensions Reservoir Reservoir size Reservoir size Reservoir size design Approx. height (H) mm [in.] Approx. width (B) mm [in.] Approx. depth (T) mm [in.] liters gal. [0.53] [1.06] [2.11] [2.90] [3.96] [5.28] [6.6] [0.53] [1.06] [2.11] [2.90] [3.96] [5.28] [6.6] [0.53] [1.06] [2.11] [2.90] [3.96] [5.28] [6.6] [14.2] [15] [19] [24.3] [28.7] [8.3] [9.84] [9.06] [8.66] [8.66] [8.82] [9.84] [9.88] [9.84] [9.61]...
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Page 34: Assembly Holes
Fig. 25 6.3.2 Assembly holes NOTICE Damage to the main machine and the pump The assembly holes should be created only on non-load- bearing parts of the main machine. Do not fasten on two parts which move in opposite directions to one another (e.g., machine base and machine assembly). - Page 35 Tightening torque: 15 Nm ± 1.5 Nm Fig. 26 [11.1 ft.lb. ± 1.1 ft.lb.] Installing the pump: The pump must be installed on the main machine using fastening hardware provided by the customer. For each hole: • Screw M8 (8.8) •...
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Page 36: Electrical Connection
6.4 Electrical connection NOTE See also section Overview of cables and possible WARNING connections. Electric shock Work on electrical components may be performed only by qualified electricians. At a minimum, the following safety measures must be taken before any work on electrical components is done: •... -
Page 37: Setting The Delivery Rate On Pump Element R Or Kr
6.5 Setting the delivery rate on pump Fig. 29 element R or KR NOTE The delivery rate of pump element R or KR can be adjusted only when the pump is at a standstill. When delivered, the rate is set to full delivery, meaning the setting dimension is S = 29 mm [1.14 in.]. -
Page 38: Installing The Pressure Limiting Valve
6.6 Installing the pressure limiting valve Fig. 31 Each pump element must be secured with a pressure limiting valve that is suitable for the projected maximum approved operating pressure of the centralized lubrication system. NOTE For the 2L XNFL reservoir versions and for all 4L and 8L reservoirs, the adapter 226-14105-5 (see "Spare parts"... -
Page 39: Connection Of The Lubrication Line
6.7 Connection of the lubrication line 6.8 Filling with lubricant < 6.8.1 Filling via the reservoir cover CAUTION Risk of slipping < WARNING Exercise caution when handling lubricants. Crushing hazard Immediately remove and bind any leaked Crushing hazard on the rotating stirring paddle. lubricants. -
Page 40: Filling Via Filler Nipple
Fig. 34 6.8.2 Filling via filler nipple Fig. 33 Filling via the filler nipple Initial filling of an empty pump with follower plate 1. Connect the fill connection of the filling pump to the filler 1. Turn the reservoir cover (Fig. 34/1) counterclockwise and nipple (Fig. -
Page 41: Initial Filling With Double-Lip Follower Plate
Fig. 36 NOTE For initial filling of a pump delivered without lubricant, the pump is fitted with a bleed thread (Fig. 37/1) and a “Read instructions” sticker (Fig. 37/2). The bleed thread ensures that the air under the follower plate can escape when filling the pump for the first time. -
Page 42: First Start-Up
7. First start-up In order to warrant safety and function, a person assigned by the operator must carry out the following inspections. Immediately eliminate detected deficiencies. Deficiencies may be remedied by an authorized and qualified specialist only. 7.1 Inspections before first start-up Table 20 Checklist: Inspections before first start-up Inspections to be performed... -
Page 43: Operation
Fig. 38 8. Operation SKF products operate largely automatically. The activities required during normal operation are limited primarily to inspection of the fill level of pumps without empty signal and to the timely refilling of lubricant. 8.1 Top up lubricant See the “Filling with lubricant”... -
Page 44: Maintenance
9. Maintenance Careful and regular maintenance is required in order to detect and remedy possible faults in time. The operator must always determine the specific intervals according to the operating conditions, review them regularly, and adjust them where necessary. If necessary, copy the table for regular maintenance activities. -
Page 45: Cleaning
10. Cleaning 10.1 Basics < WARNING Cleaning should be carried out in accordance with the operator's Risk of fatal electric shock own company rules, and cleaning agents and devices and the personal protective equipment to be used should likewise be selected in accordance with those rules. -
Page 46: Faults, Causes, And Remedies
SKF eLube app. The SKF the lubrication pump and the SKF eLube app eLube app is connected to the wrong pump. • Switch the pump off and back on again • Connect the SKF eLube app to the desired pump... -
Page 47: Repairs
12. Repairs Replace the pump element as instructed below: 1. Remove the defective pump element (Fig. 39/1) from the < pump housing together with the pressure limiting valve WARNING (Fig. 39/2), by unscrewing on the hexagon of the pump Risk of injury element. -
Page 48: Shutdown, Disposal
13. Shutdown, disposal 13.1 Temporary shutdown Temporary shutdowns should be done by a course of action to be defined by the operator. 13.2 Permanent shutdown, disassembly Permanent shutdown and disassembly of the product must be planned properly by the operator and conducted in compliance with all applicable laws and regulations. -
Page 49: Spare Parts
14. Spare parts Spare parts may be used exclusively for replacement of identical defective parts. Modifications with spare parts on existing products are not allowed. 14.1 Housing cover, complete Designation Pcs. Item number Figure Housing cover, complete 544-32217-1 Housing cover, complete, for UL-certified pumps 544-60714-1 Delivery including dewatering hose and the appropriate number of screws for installation... -
Page 50: Adapter D6 Ax 1/8Npt I C
14.4 Adapter D6 AX 1/8NPT I C Designation Pcs. Item number Figure Adapter for pressure limiting valve 270864 | C3 304-19614-1 14.5 Motor 12 / 24 V DC Designation Pcs. Item number Figure Motor 12 V DC 544-85334-1 Motor 24 V DC 544-36913-7 Delivery includes 1 x motor connection for control circuit board;... -
Page 51: Transparent Reservoir
8l XN / XL 544-32696-1 -MIN- Delivery includes: A = Lincoln/SKF logo, B = rotation arrow, C = O-ring, D = reservoir cover, E = pinch point warning sticker, F = reservoir cover non-detachable (screwed onto the reservoir) NOTE Other transparent reservoirs on request. -
Page 52: Fixed Paddle
14.9 Fixed paddle Designation Pcs. Item number Figure Fixed paddle 4 XNBO 444-70490-1 Fixed paddle 8 XNBO 444-70491-1 14.10 Reservoir cover Designation Pcs. Item number Figure A) Reservoir cover 4/8 l [1.06/2.11 gal.] XNBA/XLBA 544-36963-1 B) Reservoir cover 4/8 l [1.06/2.11 gal.] 544-31992-1 C) Reservoir cover 2 l [0.53 gal.] XNBO 544-85156-1... -
Page 53: Appendix
15. Appendix Table 24 Cable colors in accordance with IEC 60757 Abbreviation Color Abbreviation Color Abbreviation Color Abbreviation Color Black Green White Pink Brown Yellow Orange Turquoise Blue Violet Gray GNYE Green/Yellow RDWH Red/White Gold Silver Not all cable colors need to be used in the terminal diagrams. 15.1.1 Terminal diagram for full and low-level signals on the reservoir cover NOTE The full/low-level signals are connected on the pump housing using a PG9 screwed gland... -
Page 54: Terminal Diagram For Pump P253 Dc Smart With Bayonet Connector
15.1.2 Terminal diagram for pump P253 DC Smart with bayonet connector Fig. 41 P253 DC Smart with bayonet connector... -
Page 55: Terminal Diagram For Pump P253 Dc Smart With Rectangular Connector And M12 Connector
15.1.3 Terminal diagram for pump P253 DC Smart with rectangular connector and M12 connector Fig. 42 P253 DC Smart with rectangular connector and M12 connector... -
Page 56: Overview Of Cables And Possible Connections
15.1.4 Overview of cables and possible connections 15.1.4.1 Rectangular and bayonet connectors Table 26 Cables and possible connections for rectangular and bayonet connectors Pump Accessories/cables External Internal Connection Cross- Plug Color Color Function Polarity Item number Length section/enclos ure rating +12/24VDC +12/24V J13(1) - Page 57 15.1.4.2 M12 connector Table 27 Cables and possible connections for M12 connectors Pump Accessories/cables External Internal Connection Cross- Plug Color Color Function Polarity Item number Length section/enclos ure rating +12/24VDC +12/24V J19(1) 2370-00000167 5 m 5x0.34 mm 2370-00000086 IP 67 J19(3) KD signal Positive (negative)* J19(4)
- Page 58 Table 28...
- Page 59 Notes / Notizen / Apuntes...
- Page 60 ® SKF is a registered trademark of the SKF Group. ™ eLube is a trademark of the SKF Group. © SKF Group 2023 Reprint or reproduction of the contents of this information - even in part - is permitted only with SKF's prior written consent.
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