Pneumatic Swivel Unit SRU-plus 20-60

Transcription

1 Translation of the original manual Pneumatic Swivel Unit SRU-plus Assembly and Operating Manual Superior Clamping and Gripping

2 Imprint Imprint Copyright: This manual remains the copyrighted property of SCHUNK GmbH & Co. KG. It is solely supplied to our customers and operators of our products and forms part of the product. This documentation may not be duplicated or made accessible to third parties, in particular competitive companies, without our prior permission. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: Edition: /11/2014 en SCHUNK GmbH & Co. KG All rights reserved. Dear customer, congratulations on choosing a SCHUNK product. By choosing SCHUNK, you have opted for the highest precision, top quality and best service. You are going to increase the process reliability of your production and achieve best machining results to the customer's complete satisfaction. SCHUNK products are inspiring. Our detailed assembly and operation manual will support you. Do you have further questions? You may contact us at any time even after purchase. Kindest Regards Yours SCHUNK GmbH & Co. KG Spann- und Greiftechnik Bahnhofstr D Lauffen/Neckar Tel Fax info@de.schunk.com SRU-plus en

3 Table of contents Table of contents 1 About this manual Warnings Applicable documents Variants Basic safety notes Intended use Not intended use Environmental and operating conditions Product safety Protective equipment Constructional changes, attachments, or modifications Personnel qualification Using personal protective equipment Notes on particular risks Warranty Scope of delivery Accessories Sensors Technical data Assembly Mechanical connection Air connection Adjusting the limit positions Basic setting 0 and Shock absorber stroke fine adjustment 0 and Adjusting the center position (variant M) Adjusting the center position (variant VM) Sensors Inductive proximity switch IN Magnetic switch MMS Commissioning Setting the speed Adjustment of the shock absorber stroke Function and handling Base unit SRU-plus en 3

4 Table of contents 9.2 Center position (variant M) Locked center position (variant VM) Mounting the separating sleeve Version VM with separate piston chambers Trouble shooting Module does not move? The module does not travel through the entire stroke? Torque drops? The module rotates abruptly? Module does not move smoothly to the limit positions? Maintenance and care Notes Maintenance and lubrications intervals Lubricants/Lubrication points (basic lubrication) Disassembly of the module Dismantling the rotary actuator Disassembling the center position (variant M and VM) Replacing a shock absorber Shock absorber types and shock absorber overlap (h) Servicing and assembling the module Assembly drawings Basic components and media feed-through Fitting locked center position Locating face end position adjustability Locating face end position adjustability Addition locked middle position Piston and cover basic unit Addition center position Seal kit Accessories pack Translation of original declaration of incorporation SRU-plus en

5 About this manual About this manual This instruction is an integral part of the product and contains important information for a safe and proper assembly, commissioning, operation, maintenance and help for easier trouble shooting. Before using the product, read and note the instructions, especially the chapter "Basic safety notes". Warnings To make risks clear, the following signal words and symbols are used for safety notes. DANGER Danger for persons. Non-compliance will inevitably cause irreversible injury or death. WARNING Dangers for persons. Ignoring a safety note like this can lead to irreversible injury and even death. CAUTION Dangers for persons. Non-observance can cause minor injuries. NOTICE Material damage Information about avoiding material damage. DANGER Danger of explosion in potentially explosive areas! SRU-plus en 5

6 About this manual Applicable documents General terms of business Catalog data sheet of the purchased product Assembly and Operating manuals of the accessories Supplementary sheet "Installation and operating instructions - EX" The documents listed here, can be downloaded on our homepage Variants This operating manual applies for the following variations SRU-plus SRU-plus angle of rotation 90 SRU-plus angle of rotation 180 SRU-plus limit position adjustability 3 SRU-plus limit position adjustability 90 SRU-plus with media feed-through SRU-plus without media feed-through SRU-plus with pneumatic center position SRU-plus with locked center position Fig. 1 Type designation SRU-plus en

7 About this manual Fig. 2 1 case 7 clamping glasses (optional) 2 piston with damper 8 flange for media feed through 3 pinion 9 piston with damper - locked middle position 13 monitoring with moveable cam 14 monitoring with fixed cam 15 sensor mount with sensor 4 secure stop (0-180 ) 10 addition M ( ) 16 secure stop - locked middle position 5 cap 11 addition locked middle position ( ) 6 cover 12 pinion with media feed through 17 secure stop (0-90 ) SRU-plus en 7

8 Basic safety notes Basic safety notes Intended use The product was designed to swivel permissible attachments or workpieces. The product is intended for installation in a machine/system. The requirements of the applicable guidelines must be observed and complied with. The product may be used only in the context of its defined application parameters ( 6, Page 14). The product is designed for industrial use. To use this unit as intended, it is also essential to observe the technical data and installation and operation notes in this manual and to comply with the maintenance intervals. 2.2 Not intended use Use which is not specified as an intended use is for instance when the product is for example used as a pressing tool, stamping tool, lifting tool, guide for tools, cutting tool, tensioning mean, boring tool. 2.3 Environmental and operating conditions Make sure that the product has a sufficient size for the application. Observe Maintenance and lubrication intervals ( 11.2, Page 44). Make sure that the environment is free from splash water and vapors as well as from abrasion or processing dust. Exceptions are products that are designed especially for contaminated environments SRU-plus en

9 Basic safety notes 2.4 Product safety Dangers arise from the product, if: the product is not used in accordance with its intended purpose. the product is not installed or maintained properly. the safety and installation notes are not observed. Avoid any manner of working that may interfere with the function and operational safety of the product. Wear protective equipment. NOTE More information are contained in the relevant chapters Protective equipment Provide protective equipment per EC Machinery Directive Constructional changes, attachments, or modifications Additional drill holes, threads, or attachments that are not offered as accessories by SCHUNK may be attached only with permission of SCHUNK. 2.5 Personnel qualification The assembly, initial commissioning, maintenance, and repair of the product may be performed only by trained specialist personnel. Every person called upon by the operator to work on the product must have read and understood the complete assembly and operating manual, especially the chapter "Basic safety notes" ( 2, Page 8). This applies particularly to personnel only used occasionally, such as maintenance personnel SRU-plus en 9

10 Basic safety notes Using personal protective equipment When using this product, observe the relevant industrial safety regulations and use the personal protective equipment (PPE) required! Use protective gloves, safety shoes and safety goggles. Observe safe distances. Minimal safety requirements for the use of equipment. 2.7 Notes on particular risks Generally valid: Remove the energy supplies before installation, modification, maintenance, or adjustment work. Make sure that no residual energy remains in the system. Do not move parts by hand when the energy supply is connected. Do not reach into the open mechanism or the movement area of the unit. Perform maintenance, modifications, and additions outside the danger zone. Secure the product during all operations against uncontrolled activation. Take a precautionary approach by maintenance and disassembly. Only specially trained staff should disassemble the product SRU-plus en

11 Basic safety notes WARNING Risk of injury from objects falling and being ejected The danger zone must be surrounded by a safety fence during operation. WARNING Risk of injury when the machine/system moves unexpectedly. WARNING Risk of injury due to rotating components! Avoidance: The danger zone must be surrounded by a safety fence during operation. WARNING Risk of injury due to loosened parts and destruction of the swivelling unit due to damaged shock absorbers! Avoidance: Regular inspection of the individual components on wear and damage. WARNING Note that suitable emergency-off strategies (e.g. controlled shut down) and restarting strategies (e.g. pressure build-up valves, appropriate valve switching sequences) are needed for all pneumatic actuators. Cutting off the pressure in an uncontrolled manner could lead to undefined states and behavior SRU-plus en 11

12 Warranty 3 Warranty If the product is used as intended, the warranty is valid for 24 months from the date of delivery from the production facility under the following conditions: Intended use in 1-shift operation Observe the mandatory maintenance and lubrication intervals Observe the environmental and operating conditions Parts touching the work piece and wear parts are not part of the warranty SRU-plus en

13 Accessories 4 Scope of delivery The scope of delivery includes Pneumatische Schwenkeinheit SRU-plus in the ordered model. Accessory pack Accessories A wide range of accessories is available for this module. For information about which accessories can be used with the appropriate product version catalog. Sensors Overview of the compatible sensors Designation Magnetic switch Inductive proximity switches Type MMS IN Exact type designation of the compatible sensors see catalog. If you require information on sensor operation, contact your SCHUNK contact person or download information from our homepage SRU-plus en 13

14 Technical data 6 Technical data Basical data Designation Noise emission [db(a)] Pressure medium Min. pressure [bar] Max. pressure [bar] Value 70 Compressed air, compressed air quality according to ISO :7 4 4 See data sheet See data sheet The catalog contains diagrams for designing to the maximum allowable moment of inertia.your contact person at SCHUNK can support you for calculating other applications. More technical data are included in the catalog data sheet. Whichever is the latest version SRU-plus en

15 Assembly Assembly Mechanical connection DANGER Danger of explosion in explosion risk areas! Follow the instructions in supplementary sheet "Installation and operating instructions - EX" for modules in explosionresistant versions (EX)! WARNING Risk of injury when the machine/system moves unexpectedly! Switch off power supply. Mounting The module can be mounted on the base side. Fig. 3 Assembly options mounting material (* provided by customer/ ** included in the enclosed pack) Item Designation SRU-plus * Screw M6 M6 M6 M8 M8 M10 M12 2** Centering sleeve Ø12 Ø12 Ø12 Ø12 Ø14 Ø16 Ø16 Fastening at the base 1 Use the centering sleeves (2) from the enclosed pack. 2 Secure the module from the output side via the drill holes provided for this purpose, or at the base using the threads SRU-plus en 15

16 Assembly Fig. 4 Mounting the attachments on the pinion The following mounting materials are necessary for installation of the unit and must be provided by the customer: mounting material (* provided by customer/ ** included in the enclosed pack) Item Designation SRU-plus * Screw M6 M6 M6 M16 M8 M10 M10 2 * Screw M5 M6 M6 M6 M8 M10 M10 3 * Fitting screw M5 M5 M5 M5 M6 M8 M8 4 ** Centering sleeve Ø6,0 Ø6,0 Ø6,0 Ø6,0 Ø8,0 Ø10 Ø10 Fastening to the pinion 1 Use the centering sleeves (4) from the enclosed pack. 2 Use the 4 threaded holes to secure the attachment. Fastening to the pinion with optional inductive proximity switch 1 Mount the switch cam retaining disk with the centering sleeves (4) between the pinion and a mounting plate (provided by the customer). 2 Use the 4 threaded holes to secure the mounting plate. 3 Secure the attachment to the mounting plate SRU-plus en

17 Assembly 7.2 Air connection DANGER Danger of explosion in explosion risk areas! Follow the instructions in supplementary sheet "Installation and operating instructions - EX" for modules in explosionresistant versions (EX)! WARNING Warning: Risk of injury when the machine/system moves unexpectedly! Remove the energy supplies before starting with assembly and adjustments. Make sure that no residual energy remains in the system. NOTICE Observe the requirements for the air supply ( 6, Page 14). Only open the air connections required. Seal air connections not required using the locking screws from the enclosed pack. For hose-free direct connections use the two O-rings from the enclosed pack SRU-plus en 17

18 Assembly Fig. 5 compressed air connections A, B, C and D Item Designation Description Function 1 b Hose-free Swiveling 90-0 / a direct connection Swiveling 0-90 / d Approach center position (M) 4 c Extend locking piston (VM) 5 C Hose connection Approach center position (M) 6 D Extend locking piston (VM) 7 A Swiveling 0-90 / B Swiveling 90-0 / Pay attention to the following table when using throttles SRU-plus en

19 Assembly Air connection for variants with center position (M) 1 The air connections labeled "C" and "D" must be pressurized together (with intersection). NOTICE In the variant with locked center position, this can cause malfunctions! Do not install an exhaust air throttle. Observe table ( 7.2, Page 19). Air connection for variants with locked center position (VM) NOTE The operating pressure of the lock must be between 4 and 6 bar. 1 In addition, air connections that are marked "C" and "D" are available ( 7.2, Page 18). 2 The lock can be engaged smoothly using a supply air throttle. Table ( 7.2, Page 19) Variant with media feed-through 1 Connections marked with numbers are provided for feedthrough of the media on the pinion (19) and the flange (20). (Position of the position numbers ( 12.1, Page 54)) Use of throttles Module variant A B C D Without center position Exhaust air Exhaust air - - throttle throttle With center position (M) With locked center position (VM) With locked center position (VM) and separate main piston chambers Exhaust air throttle Exhaust air throttle Supply air throttle Supply air throttle Supply air throttle Supply air throttle A1 Exhaust air throttle A2 Supply air throttle B1 Exhaust air throttle B2 Supply air throttle Supply air throttle Supply air throttle Supply air throttle Supply air throttle SRU-plus en 19

20 Assembly Adjusting the limit positions Basic setting 0 and 180 Fig. 6 Basic setting 1 Stop A 2 Hexagon socket screw 3 Stop B Basic setting 0 1 Unscrew the screw (2) with hexagon socket wrench (SRUplus20-40: 4; SRU-plus50-60: 5) about one rotation. 2 Actuate air connection "B". The module swivels to stop A (1). 3 Set the desired end position by turning stop A (1). (For SRU-plus 50-60; reduce pressure before adjusting) 4 Check the setting: Ventilate air connection "B" and actuate it again.adjust the end positions if necessary. ( 9.1, Page 35)Base unit NOTICE Components can come loose if the limit positions are not adjusted properly: Only trained staff may perform these actions. Use a 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and apply to the hexagon screw on the limit stop cover SRU-plus en

21 Assembly Basic setting Ventilate air connection "B" and actuate air connection "A". The module swivels to stop B (3). 2 Set the desired end position by twisting stop B (3). (For the SRU-plus 50-60, reduce pressure before adjusting) 3 Check the setting: ventilate air connection "A" and actuate it again. Adjust the end positions if necessary. 4 Tighten screws (2) fully. (SRU-plus 20-40: 10 Nm; SRU-plus50-60: 24 Nm) 5 Swivel repeatedly to test the limit position setting SRU-plus en 21

22 Assembly Shock absorber stroke fine adjustment 0 and 180 NOTICE The module can leak if the maximum adjustment range is exceeded: Note the maximum adjustment range of the fine adjustment. Designation SRU-plus Max. adjustment range [mm] Fig. 7 Shock absorber fine adjustment 1 Stop A 2 Stop B SRU-plus en

23 Assembly Setting the dampening for end position 0 1 Remove the cover (5). 2 Secure stop A (1) with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and loosen the nut (3) on the stop pin with (4) A with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 3 Secure A (1) with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and screw out the stop pin A (4) with hexagon socket wrench 5 (SRU-plus 20-25) or 6 (SRU-plus 30-40) or 8 (SRU-plus 50-60). One turn shortens the dampening stroke by 1.5 mm. 4 Test the dampening effect by rotating the loaded module. (The end positions must be approached gently.) 5 Secure stop pin A (5/4) with the hexagon socket wrench 5 (SRU-plus 20-25) or 6 (SRU-plus 30-40) or 8 (SRU-plus 50-60) and apply the nut (3) with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 6 Secure stop A (1) with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and tighten the nut with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 7 Mount the cover (6) again. Setting the dampening for end position Remove the cover (6). 2 Secure stop B with 19 (SRU-plus 20-25) or 32 (SRUplus 30-60) and loosen the nut (3) at the stop pin (5/4) B with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 3 Secure stop B with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and screw out stop pin B (5/4) with hexagon socket wrench 5 (SRU-plus 20-25) or 6 (SRU-plus 30-40) or 8 (SRU-plus 50-60). One turn shortens the dampening stroke by 1.5 mm. 4 Test the dampening effect by rotating the loaded module. (The end positions must be approached gently.) 5 Secure stop pin B (5/4) with the hexagon socket wrench 5 (SRU-plus 20-25) or 6 (SRU-plus 30-40) or 8 (SRU-plus 50-60) and apply the nut (3) with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 6 Secure stop B with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and tighten the nut with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60). 7 Mount the cover (6) again SRU-plus en 23

24 Assembly Adjusting the center position (variant M) Fig. 8 Adjusting the center position 1 Stop B 3 Interior screw 5 Limiting sleeve 2 Stop A 4 Stop C 6 Stop D 1 Loosen the screw (3) about one turn with hexagon socket wrench (SRU-plus 20-40: 4; SRU-plus 50-60: 5). 2 Unscrew stops C (4) and D (6) to the limit sleeve (5). 3 Actuate air connections "C" and "D". The module swivels to about 90 and has about 6 of play in this position. 4 Turn the pinion clockwise and press it against stop C (4). 5 Turn stop C (4) to the required center position. 6 Turn stop D (6) until the pinion no longer has play in the center position. 7 Re-tighten the screw (3) again (SRU-plus 20-40: 10 Nm, SRU-plus 50-60: 24 Nm). 8 Swivel repeatedly to test the center position setting SRU-plus en

25 Assembly Adjusting the center position (variant VM) NOTICE The lock could be damaged! Pay attention to the description of ( 9.3, Page 37). Depending on the start-up direction of (stop A (2) or stop B (1)), the center position can be set the same or differently. Fig. 9 Adjusting of the center position locking 1 Stop B 5 Stop C 2 Stop A 6 Limiting sleeve 3 Bore hole for hexagon socket wrench 4 Internal screw 7 Stop D SRU-plus en 25

26 Assembly 1 Ventilate all air connections. 2 Loosen the screw (4) about one turn with hexagon socket wrench (SRU-plus 20-40: 4; SRU-plus 50-60: 5). 3 Actuate air connection "B". The module swivels to stop A (2). 4 Ventilate air connection "B" and pressurize air connection "C". Stop C (5) locks. 5 Actuate air connection "A". The module swivels to stop C (5) (basic setting 90 ). 6 Turn stop C (5) to the required center position. 7 Ventilate air connection "C". The module swivels to stop B (1). 8 Ventilate air connection "A" and actuate air connection "D". Stop D (7) locks. 9 Actuate air connection "B". The module swivels to stop D (7) (basic setting 90 ). 10 Turn stop D (7) to the required center position. 11 Re-tighten the screw (4) again (SRU-plus 20-40: 10 Nm, SRU-plus 50-60: 24 Nm). 12 Swivel repeatedly to test the center position setting. ( 9.3, Page 38) 7.4 Sensors The module is prepared for a number of sensors. Other sensors can be used with a mounting kit. If you require further information on sensor operation, contact your SCHUNK contact person or download information from our homepage. Technical data for the sensors can be found in the data sheets (included in the scope of delivery). The enclosed supplementary sheet "Installation and operating instructions - EX" must be observed for explosion-protected products (EX) SRU-plus en

27 Assembly Inductive proximity switch IN 80 Fig. 10 Connection example for IN 80 1 brown 2 black 3 blue The inductive proximity switches used are equipped with reverse polarity protection and are short-circuit-proof. Make sure that you handle the proximity switches properly: Do not pull on the cable. Do not allow the sensor to dangle from the cable. Do not overtighten the mounting screw or mounting clip. Please adhere to a permitted bend radius of the cable. ( catalog) Avoid contact of the proximity switches with hard objects and with chemicals, in particular nitric acid, chromic acid and sulphuric acid. The inductive proximity switches are electronic components, which can react sensitively to high-frequency interference or electromagnetic fields. Check to make sure that the cable is fastened and installed correctly. Provide for sufficient clearance to sources of highfrequency interference and their supply cables. Parallel switching of several sensor outputs of the same type (npn, pnp) is permissible, but does not increase the permissible load current. Note that the leakage current of the individual sensors (ca. 2 ma) is cumulative SRU-plus en 27

28 Assembly Mounting of the inductive proximity switch NOTICE When swiveling, ensure that the switch cams do not collide with the sensors. The proximity switches can be secured in three different positions: Stop A Center position Stop B The following assembly steps are the same for all three mounting positions: Fig Stop A 2 Center position 3 Stop B 1 Remove the corresponding cover disk on the housing of the SRU-plus. 2 Secure the bracket (5) in the countersink provided for it in the housing, using a hexagon socket screw (8). Caution: Only tighten the hexagon socket screw (7) far enough that the clamping sleeve (6) can still be turned. 3 Turn the pinion counter-clockwise to the corresponding stop/center position SRU-plus en

29 Assembly Note The following steps 4 and 5 only apply for washers with movable cams.. 4 Loosen the set screw (10 and 12) of the switch cam (9 and 13). Move the switch cam (9 and 11) until it is level with the corresponding clamping sleeve. 5 Turn the pinion back to the output position and secure the switch cams (9 and 11). Adjusting the switching gap Turn the pinion back counter-clockwise to the corresponding stop / center position. (possibly supported by actuating the corresponding air connection) 2 Push the proximity switch into the clamping sleeve (6) as far as possible, and unscrew the sleeve until the proximity switch responds. 3 Tighten the hexagon socket screw (7) until the clamping sleeve (6) no longer turns.the hexagon socket screw (7) grips the clamping sleeve (6) and simultaneously secures the bracket (5) on the rotary actuator. 4 The switching distance has now been set: Tighten the clamping screws (4) until the proximity switch is secured. 5 The switching distance has now been set: Tighten the clamping screws (4) until the proximity switch is secured. Magnetic switch MMS 22 Fig. 12 Fig SRU-plus en 29

30 Assembly NOTICE Sensor can be damaged during assembly. Do not exceed the maximum tightening torque of 10 Ncm for the set screws. NOTE Ferromagnetic material changes the switching positions of the sensor. For example: Adapter plate made of ordinary steel. At ferromagnetic adapter plates: The module must firstly be mounted on the adapter plate Then, the positions of the magnetic switch have to be set Mounting of the magnetic switch The magnetic switches can be mounted via four grooves in the module housing. The setting of the switching positions must be done as follows: 1 Turn the unit to the required swivel angle. 2 Push the magnetic switch into the groove. 3 Move the magnetic switch along the groove until it actuates. 4 Secure the magnetic switch. (see enclosed data sheet) 5 Check the switch position of the magnetic switch by swiveling the module repeatedly. NOTE We recommend the use of four magnetic switches to monitor the locked center position: One sensor each to monitor the two limit positions For monitoring approach to the center position from end position 0 For monitoring approach to the center position from end position SRU-plus en

31 Commissioning 8 Commissioning NOTICE Damage to the rotary module possible! The rotary module can be damaged if it arrives too abruptly in the end position. The rotary motion must reach the end position without jerk or bounce. Therefore flow control valves and shock absorbers must be used( 8.1, Page 31),( 8.2, Page 32). Please observe the diagrams and information in the catalog pages. 8.1 Setting the speed NOTICE Damage to the product is possible! The rotary module can be damaged if it arrives too abruptly in the end position. The exhaust flow control valves and the shock absorbers must be adjusted so that the rotation gradually and smoothly decelerates. Fig Completely close the exhaust flow control valves. 2 Slowly and gradually open the exhaust flow control valves and rotate the load. 3 Further open the exhaust flow control valves until the rotation gradually and smoothly decelerates SRU-plus en 31

32 Commissioning Fig. 15 NOTE If the speed is too high the shock absorber will be overloaded. Fig Open the exhaust flow control valve until a smooth movement is reached. NOTE In most cases the rotation will still be too slow. Further adjustment and optimization of the swivel time is achieved via adjusting the shock absorber stroke. 8.2 Adjustment of the shock absorber stroke NOTE When received from the factory, the unit is set to utilize the maximum shock absorber stroke SRU-plus en

33 Commissioning Fig. 17 The shock absorber stroke is too long and the end position is reached too slowly. Fig. 18 The shock absorber stroke is too short and the unit arrives in the end position too abruptly. Fig. 19 Optimal shock absorber stroke SRU-plus en 33

34 Commissioning Fig Remove cover cap (1). 2 Secure the nut for the angel of travers (2) and loosen the stop nut (3). 3 Adjust the shock absorber stroke with a hex wrench (4). left turn, shortershock absorber stroke right turn, longer shock absorber stroke 4 Secure the nut for the angel of travers (2) and tighten the stop nut (3). 5 Put on the cover cap (1). Repeat these steps at the second shock absorber SRU-plus en

35 Function and handling Basic setting 180 Function and handling Base unit 1 Pressurize air connection A. The pinion turns clockwise up to the stop B. Basic setting 0 1 Pressurize air connection B. The pinion turns back to the stop A. Setting ranges of the Variants Fig. 21 end position adjustability 3 Fig. 22 end position adjustability 90 Fig. 23 Variant swivel angle SRU-plus en 35

36 Function and handling Center position (variant M) Basic setting 90 Fig. 24 Position of the air connections 1 Actuate air connection C and D together. The pinion rotates on the center position. The center position can be adjusted by ± 3. By design, overshooting can occur in the center position. Circuit diagram control (example) Fig. 25 Actuation with one 5/3 and one 3/2 directional control valve SRU-plus en

37 Function and handling 9.3 Locked center position (variant VM) WARNING Risk of injury is the machine/system moves unexpectedly! In an EMERGENCY STOP situation, the center position lock can come loose. Swivel the module to one of the limit positions to restart. NOTICE The pistons can be damaged if incorrectly controlled. The locking pistons must be free to extent without striking the drive pistons. Note the circuit diagram ( 9.3, Page 38). If this option is selected, the locking pistons can stop the rotating motion in the center position and enable it again. The center position can be adjusted by ± 3. Move from the 0 position to the center position 1 Extent locking piston C. 2 Actuate connection A. Move from the 180 position to the center position 1 Extent locking piston D. 2 Actuate air connection B. NOTE Before actuating C and D, connections A and B must be completely ventilated SRU-plus en 37

38 Function and handling Circuit diagram control (example) Fig. 26 Actuation with two 5/3 directional control valves SRU-plus en

39 Function and handling Mounting the separating sleeve NOTICE The O-ring in the groove could be damaged! Screw the separating sleeve (2) very carefully until the end of the threads. Fig. 27 Mounting the separating sleeve 1 Unscrew the locking screws 2x (1). 2 Screw the separating sleeve 2x (2) from the accessory pack into hose connection holes A and B until the end of the threads. (If necessary, turn the set screw (3) back a little.) 3 Mount hose connections A1, A2, B1 and B2. Position of the hose connections ( 9.3.2, Page 40) 4 Control SRU-plus as shown in ( 9.3.2, Page 41) SRU-plus en 39

40 Function and handling Version VM with separate piston chambers WARNING Risk of injury is the machine/system moves unexpectedly! In an EMERGENCY STOP situation, the center position lock can come loose. WARNING Risk of injury is the machine/system moves unexpectedly! When ventilating the drive pistons, the module can start to rotate unintentionally (e.g. horizontal rotating axes loaded on one side). Screw the separating sleeves from the accessory pack into air connections A1 and B1. ( 9.3.1, Page 39)The two cylinder chambers of connections A and B can then be activated separately. Fig. 28 Position of the air connections SRU-plus en

41 Function and handling Wiring diagram for holding the load at 0 1 Actuate B1 until C is locked. Fig. 29 Holding the load at 0 WARNING Risk of injury is the machine/system moves unexpectedly! When installing the SRU-plus horizontally, secure locking is not guaranteed during the ventilation stage when a pivoting movement is being performed from 9 o'clock (0 ) via 6 o'clock (90 ) to 3 o'clock (180 ). Screw the separating sleeves from the accessory pack into air connections A1 and B1. ( 9.3.1, Page 39)The two cylinder chambers of connections A and B can then be activated separately. (for purposes of holding torque) Control ( 9.3.2, Page 41) The following actuation is advantageous for modules from size 35 and larger depending on the application: A brief ventilation ( 9.3.2, Page 41) while the lock is being released ensures smooth travel to the limit position. Exhaust air throttles can also be used for connections A1 and B1 by installing separating sleeves. A2 and B2 then remain unthrottled SRU-plus en 41

42 Trouble shooting Trouble shooting Module does not move? Possible cause Corrective action Pressure drops below minimum. Check the air supply. ( 7.2, Page 17) Compressed air lines switched Proximity switch defective or set incorrect. Unused air connections not closed. Component is broken, e.g. through overloading Check compressed air lines. Repair the proximity switch. Close the unused air connections. ( 7.2, Page 17) Replace component or send the module with a repair order to SCHUNK. Ensure that the module was only used within its defined application parameters. ( 6, Page 14) and catalog, if necessary, have SCHUNK check the application The module does not travel through the entire stroke? Possible cause Dirt deposits between the stop / sleeve and the piston The end positions are incorrectly adjusted Corrective action Remove the cover. Clean the module and relubricate it. ( 11, Page 44) Readjust the end positions ( 7.3, Page 20) Pressure drops below minimum. Check the air supply. ( 7.2, Page 17) Components have become loose e.g. through over-loading. Shock absorber defective Send the module to SCHUNK with a repair order or disassemble module. Check or, if necessary, replace the shock absorber ( 11, Page 44) 10.3 Torque drops? Possible cause Compressed air can escape Too much grease in the mechanical motion spaces of the module Corrective action Test seals and, if need be, disassemble the module and replace the seals ( 11, Page 44) Clean the module and relubricate it. ( 11, Page 44) Pressure drops below minimum. Check the air supply. ( 7.2, Page 17) SRU-plus en

43 Trouble shooting 10.4 The module rotates abruptly? Possible cause Too little grease in the mechanical guiding areas of the module Corrective action Clean the module and relubricate it. ( 11, Page 44) Compressed air lines are blocked Check the compressed air lines for crushing or damage Module does not move smoothly to the limit positions? Possible cause Fine adjustment of the shock absorber stoke incorrect Shock absorber defective Corrective action Check the shock absorber stroke and, if need be, readjust ( 7.3, Page 20) Check or, if need be, replace the shock absorber ( 11, Page 44) SRU-plus en 43

44 Maintenance and care Maintenance and care Notes DANGER Danger of explosion in explosion risk areas! Follow the instructions in supplementary sheet "Installation and operating instructions - EX" for modules in explosionresistant versions (EX)! Original spare parts When replacing damaged parts (wearing parts/spare parts) only use SCHUNK original spares Maintenance and lubrication intervals NOTICE At ambient temperature above 60 C the lubricants can harden faster. Interval decrease accordingly. Designation Visual inspection of shock absorber function Recommended replacement of the shock absorber after [million cycles] SRU-plus Regular Lubricants/Lubrication points (basic lubrication) We recommend the lubricants listed. During maintenance, treat all greased areas with lubricant. Thinly apply lubricant with a lint-free cloth. Lubricant point Lubricant the teeth and the pinion Molykote BR 2 plus Metallic sliding surfaces microgleit GP 360 All seals Renolit HLT SRU-plus en

45 Maintenance and care 11.4 Disassembly of the module Dismantling the rotary actuator Position of the position numbers ( 12, Page 53) 1 Remove all pressure and energy lines. 2 Unscrew screw (35) and remove both stop covers. Without center position: - Remove the curved cover (5). With center position: - Unscrew the screw (35) on stops C and D one turn. - Remove the fastening screw (58) of the limit sleeve (25). - Unscrew stops C and D until the centering housing (14) can be removed. 3 Mark the installation position of the pinion (2/19) and the pistons (24). 4 Remove the protective cover (22) and disassemble the safety ring (49) on the pinion. 5 Media feed-through option: - Remove the flange (20). 6 Pull the pinion (2/19) out of the housing SRU-plus en 45

46 Maintenance and care Disassembling the center position (variant M and VM) WARNING Risk of injury due to spring forces! There is a pre-loaded compression spring in the interior. Carefully disassemble the module. Position of the position numbers ( 12, Page 53) 1 Pull stops C and D out of the housing (14). 2 Remove the cover (18) of the adjusting sleeve (16). 3 Remove the stop piston (17). 4 Locked center position only: Remove the locking ring (51) on the stop piston (17) Replacing a shock absorber The shock absorbers are specially tested and can only be sourced from SCHUNK.The shock absorber have a restricted lifetime, depending on the load. 1 Test the shock absorbers for function regularly. The shock absorbers function correctly when the module moves smoothly into the end positions. Base unit Base unit with internal shock absorber: Position of the position numbers: ( 12, Page 53) 1 Unscrew the screws (1). 2 Pull the stop cover (2) off. 3 Remove the safety rings (4) on the pistons. 4 Pull out the shock absorber (54). 5 Insert a new shock absorber.caution: Observe the shock absorber overhang ( , Page 50), and, if necessary, remove or add fitting discs. 6 Add fitting discs to the safety rings (4) until they can be mounted without play. 7 Reattach the stop cover (2) and screw it into place. 8 Secure the stop with 19 (SRU-plus 20-25) or 32 (SRUplus 30-60) and loosen the nut (101) on the stop pin with 14 (SRU-plus 20-25) or 24 (SRU-plus 30-60) SRU-plus en

47 Maintenance and care Variant VM external absorber 9 Secure the stop with 19 (SRU-plus 20-25) or 32 (SRUplus 30-60) and screw in the stop pin with the hexagon socket wrench 5 (SRU-plus 20-25) or 6 (SRU-plus 30-40) or 8 (SRU-plus 60) up to the stop pin limit. 10 Readjust the dampening as described in( 7.3, Page 20). Locked center position option (variant VM) with external absorbers Position of the position numbers ( 12, Page 53) 1 Secure the stop with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and unscrew the sealing nuts (74) of the shock absorber. 2 Remove the absorber from the threads. 3 Screw in the new absorber as far as possible. 4 Mount the O-ring (47) on the absorber. 5 Adjust the absorber stroke by turning out the absorber. 6 Secure the stop with 19 (SRU-plus 20-25) or 32 (SRU-plus 30-60) and tighten the sealing nuts (74) of the shock absorber. 7 Swivel repeatedly to test the setting. ( 9.3, Page 38) Variant VM internal absorber Locked center position option (variant VM) with internal absorbers Position of the position numbers ( 12, Page 53) 1 Unscrew the countersunk screw (35) on stops C and D by one turn. 2 Remove the countersunk screw (58). 3 Unscrew stops C and D until the centering housing (14) can be removed. 4 Remove the safety rings (4) on the pistons (24). 5 Pull out the absorber (54). NOTICE During mounting, it is possible to damage the O-rings (41). Mount the absorbers carefully SRU-plus en 47

48 Maintenance and care 6 Insert the new absorbers. CAUTION: Note the shock absorber distance ( , Page 50); if need be, insert or remove the fitting disks. 7 Add fitting discs to the safety rings until they can be mounted without play. Base unit SRU-plus 20-W Shock absorber Maintenance for SRU-plus 20-W with elastomer damping Fig. 30 Replacing the spring-elastomer dampening 1 Unscrew the screws (1). 2 Pull the stop cover (2) off. 3 Remove the safety ring (4) from the piston. 4 Pull out the piston rod (3) and remove the compression spring (5). 5 Pull out the piston (7) with the guide sleeve (6) and dampening ring (8). 6 Replace the dampening ring (8). 7 Reinsert the piston (7) with the guide sleeve (6) and dampening ring (8) using the piston rod (3) as far as possible. 8 Check the shock absorber overlap (h), see ( , Page 50). If necessary, added fitting discs on base side until the required damper overlap (h) is reached. 9 Remove the piston rod (3) again. 10 Grease and insert the compression spring (5). 11 Grease the piston rod (3) from the inside and outside and insert it. 12 Remount the safety ring (4) again. When doing this, pay attention to the correct installation position of the safety ring. 13 Fit the stop cover (2) with screws (1) SRU-plus en

49 Maintenance and care Base unit SRU-plus 20-S Shock absorber Maintenance for SRU-plus 20-S with elastomer damping Fig. 31 Replacing the damper-elastomer dampening 1 Unscrew the screws (1). 2 Pull the stop cover (2) off. 3 Remove the safety ring (4) from the piston. 4 Pull out the piston rod (3) and remove the damper (5). 5 Removet the cover (7) and damping ring (6) by the means of the M5 thread. 6 Replace the dampening ring (6). 7 Re-insert the cover (7) and the damping ring (6) until the stop is reached by the means of the piston rod (3). 8 Remove the piston rod (3) again. 9 Grease and insert the compression spring (5). 10 Grease the piston rod (3) from the inside and outside and insert it. 11 Remount the safety ring (4) again. When doing this, pay attention to the correct installation position of the safety ring. 12 Fit the stop cover (2) with screws (1) SRU-plus en 49

50 Maintenance and care Shock absorber types and shock absorber overlap (h) Typ Basic SRU-plus Shock absorber Shock absorber overlap h [mm] Tolerance [mm] Locked center position Shock absorber Shock absorber overlap h [mm] 20 W FED (without spring) 20 S DED (to put sth. under is not necessary) W VM 25 W WP-M H WP-M W VM Tolerance [mm] FED WP-M ± 0.05 (without spring) WP-M VM 30 W WP-M H WP-M W VM WP-M VM 35 W WP-M H WP-M W VM WP-M VM 40 W WP-M H WP-M W VM WP-M W WP-M H WP-M WP-M G WP-M G WP-M G Add fitting discs at position (2) until the shock absorber (4) is scope-free inserted into the piston (5) WP-M G Add fitting discs at position (2) until the shock absorber (4) is scope-free inserted into the piston (5) SRU-plus en

51 Maintenance and care Typ Basic SRU-plus 50 W VM Shock absorber Shock absorber overlap h [mm] WP-M W WP-M 1.25x W VM WP-M 1.25x2-266 VM Tolerance [mm] WP-M G Add fitting discs at position (2) until the shock absorber (4) is scope-free inserted into the piston (5). Locked center position Shock absorber Shock absorber overlap h [mm] WP-M G Tolerance [mm] Fig. 32 Shock absorber overhang 1/2 put fitting discs underneath 4 Shock absorber if required 3 Safety ring 5 Piston h Shock absorber overlap 1 Add fitting disks (1/2) to the shock absorber until the shock absorber overlap (h) is reached and the shock absorber is in contact with the safety ring (3) without play SRU-plus en 51

52 Maintenance and care Servicing and assembling the module Position of the position numbers ( 12, Page 53) WARNING Risk of injury due to spring forces! Carefully disassemble the module. Servicing Thoroughly clean all parts and check for damage or wearing parts. Replace all wear parts / seals. Treat all lubrication points with lubricant. Oil and grease bright, external steel parts. Assembly Assembly takes place in the opposite order to disassembly. Observe the following: Do not damage the O-rings (41) during assembly. Unless otherwise specified, secure all screws and nuts with Loctite no. 243 and tighten with the appropriate tightening torque SRU-plus en

53 Assembly drawings 12 Assembly drawings Fig. 33 Overview of the assembly drawings 1 Basic components and media feed-through ( 12.1, Page 54) 2 Fitting locked center position (variant VM) ( 12.2, Page 55) 3 Locating face end position adjustability 90 ( 12.3, Page 55) 4 Locating face end position adjustability 3 ( 12.4, Page 55) 5 Addition locked middle position (variant VM) ( 12.5, Page 56) 6 Piston and cover basic unit ( 12.6, Page 56) 7 Addition center position (variant M) ( 12.7, Page 56) SRU-plus en 53

54 Assembly drawings Basic components and media feed-through Fig. 34 * Contained in seal kit. ** Contained in accessory pack. *** only by SRU-plus SRU-plus en

55 Assembly drawings 12.2 Fitting locked center position Fig Locating face end position adjustability 90 Fig Locating face end position adjustability 3 Fig. 37 * Contained in seal kit. ** Contained in accessory pack SRU-plus en 55

56 Assembly drawings Addition locked middle position Fig Piston and cover basic unit Fig Addition center position Fig. 40 * Contained in seal kit. ** Contained in accessory pack SRU-plus en

57 Seal kit 13 Seal kit ID.-No. of the seal kit SRU-plus Seal kit for SRU-plus 20 SRU-plus 25 SRU-plus 30 SRU-plus 35 SRU-plus 40 SRU-plus 50 SRU-plus 60 Basic seal kit with center position with locked center position with media feed-through with center position and media feed-through with locked center position and media feed-through Contents of the seal kit ( 12, Page 53) SRU-plus en 57

58 Accessories pack 14 Accessories pack ID.-No. of the accessory pack SRU-plus Accessory pack for SRU-plus 20 SRU-plus 25 SRU-plus 30 SRU-plus 35 SRU-plus 40 SRU-plus 50 SRU-plus 60 without media feed-through with media feed-through with center position with locked center position with media feed-through and center position with media feed-through and locked center position Contents of the accessories pack ( 12, Page 53) SRU-plus en

59 Translation of original declaration of incorporation 15 Translation of original declaration of incorporation in terms of the Directive 2006/42/EG, Annex II, Part 1.B of the European Parliament and of the Council on machinery. Manufacturer/ Distributor SCHUNK GmbH & Co. KG Spann- und Greiftechnik Bahnhofstr D Lauffen/Neckar We hereby declare that on the date of the declaration the following incomplete machine complied with all basic safety and health regulations found in the directive 2006/42/EC of the European Parliament and of the Council on machinery. The declaration is rendered invalid if modifications are made to the product. Product designation: ID number Pneumatische Schwenkeinheit / SRU-plus / pneumatic The incomplete machine may not be put into operation until conformity of the machine into which the incomplete machine is to be installed with the provisions of the Machinery Directive (2006/42/EC) is confirmed. Applied harmonized standards, especially: EN ISO 12100: Safety of machinery - General principles for design - Risk assessment and risk reduction The manufacturer agrees to forward on demand the relevant technical documentation for the partly completed machinery to state offices. The special technical documents according to Appendix VII, Part B belonging to the incomplete machine have been compiled. Person authorized to compile the technical documentation: Robert Leuthner, Address: see manufacturer's address Lauffen/Neckar, January 2014 p.p. Ralf Winkler, Head of Gripping Systems Development SRU-plus en 59

60 SRU-plus en