Translation of the original manual Pneumatic Swivel Unit SRU 20-60 Assembly and operation manual Superior Clamping and Gripping
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: 0389430 Edition: 12.03 16/01/2014 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. 106 134 D-74348 Lauffen/Neckar Tel. +49-7133-103-0 Fax +49-7133-103-2399 info@de.schunk.com www.schunk.com 2 12.03 SRU 20-60 en
Table of contents Table of contents 1 About this manual... 5 1.1 Warnings... 5 1.1.1 Key words... 5 1.1.2 Symbols... 5 1.2 Applicable documents... 5 2 Basic safety notes... 6 2.1 Intended use... 6 2.2 Not intended use... 6 2.3 Environmental and operating conditions... 6 2.4 Product safety... 7 2.4.1 Protective equipment... 7 2.4.2 Constructional changes, attachments, or modifications... 7 2.5 Personnel qualification... 7 2.6 Using personal protective equipment... 8 2.7 Notes on particular risks... 8 3 Warranty... 10 4 Scope of delivery... 10 5 Technical data... 10 6 Assembly and Commissioning... 11 6.1 Mechanical connection... 11 6.2 Air connection... 12 6.3 Adjusting the end positions... 15 6.4 Shock absorber travel - fine adjustment SRU 50 und SRU 60... 16 6.5 Adjusting the center position (variant M)... 18 6.6 Adjusting the center position (variant VM)... 19 6.7 Mounting and adjusting the sensors... 20 6.7.1 Magnetic switch MMS 22... 21 6.7.2 Inductive proximity switches with male thread M8... 22 7 Function and handling... 24 7.1 Base unit... 24 7.2 Center position (variant M)... 25 7.3 Locked center position (variant VM)... 26 7.3.1 Mounting the separating sleeve... 29 8 Maintenance and care... 30 8.1 Maintenance intervals... 30 12.03 SRU 20-60 en 3
Table of contents 8.2 Lubricants/Lubrication points (basic lubrication)... 30 8.3 Dismantling the module... 31 8.3.1 Dismantling the rotary actuator... 31 8.3.2 Disassembling the center position (variant M and VM)... 32 8.4 Replacing a shock absorber... 33 8.4.1 How to use the shock absorbers and installation dimensions... 36 8.4.2 Measuring instruction... 37 8.5 Servicing and assembling the module... 38 9 Assembly drawings... 39 10 Seal kit... 42 11 Accessories pack... 43 12 Wear parts... 44 13 Translation of original declaration of incorporation... 47 4 12.03 SRU 20-60 en
About this manual 1 1.1 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 The following key words and symbols are used to highlight dangers. 1.1.1 Key words DANGER WARNING CAUTION NOTICE Dangers for persons. Non-compliance will inevitably cause irreversible injury or death. Dangers for persons. Non-compliance may cause irreversible injury or death. Dangers for persons. Non-observance may cause minor injuries. Information about avoiding material damage 1.1.2 Symbols Warning about a danger point Warning about hand injuries General mandatory sign to prevent material damage 1.2 Applicable documents General terms of business Assembly and Operating Manuals of the accessories The documents listed here, can be downloaded on our homepage www.schunk.com 12.03 SRU 20-60 en 5
Basic safety notes 2 2.1 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 ( 5, Page 10). 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 The module may be used only in the context of its defined application parameters. ( 5, Page 10) Make sure that the module is a sufficient size for the application. Make sure that the environment is clean and the ambient temperature corresponds to the specifications per the catalog. Observe Maintenance and lubrication intervals ( 8, Page 30). Make sure that the environment is free from splash water and vapors as well as from abrasive or processing dust. Exceptions are modules that are designed specially for contaminated environments 6 12.03 SRU 20-60 en
Basic safety notes 2.4 Product safety Dangers arise from the module, if e.g.: the module is not used in accordance with its intended purpose. the module 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 module. Wear protective equipment. NOTE More information is contained in the relevant chapters. 2.4.1 Protective equipment Provide protective equipment per EC Machinery Directive. 2.4.2 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 6). This applies particularly to personnel only used occasionally, such as maintenance personnel. 12.03 SRU 20-60 en 7
Basic safety notes 2.6 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. 8 12.03 SRU 20-60 en
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 due to failure of the energy supply or malfunction of the controller. 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. 12.03 SRU 20-60 en 9
Warranty / Scope of delivery / Technical data 3 Warranty The warranty is valid for 24 months from the delivery date to 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. 4 Scope of delivery The scope of delivery includes: Pneumatic Swivel Unit SRU in the ordered model. Accessory pack Basis data 5 Designation Noise emission [db(a)] Pressure medium Technical data Value 70 Compressed air, compressed air quality according to ISO 8573-1:7 4 4 10 12.03 SRU 20-60 en
Assembly and Commissioning 6 6.1 Assembly and Commissioning Mechanical connection WARNING Risk of injury when the machine/system moves unexpectedly! Switch off power supply. Assembly The module can be mounted from the base. 1 2 Fastening at the base Fig. 1 Mounting possibilities 1 Use the centering sleeves 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. 4 3 4 2 1 2 Fig. 2 Mount attachment parts on the pinion 12.03 SRU 20-60 en 11
Assembly and Commissioning The following mounting materials must be provided by customer: Pinion mounting 1 Use the centering sleeves (1) from the enclosed pack. 2 Fasten the attachment on the four threaded holes (2). 3 For this, use the 2 counterbores for the centering sleeves (4). Pinion mounting with optional inductive proximity switch 6.2 1 The control cam retaining plate must be fixed with the centering sleeves (4) between the pinion and a customer side mounting plate. 2 Attach the mounting plate via the 4 threaded holes (2). 3 Secure attachment on the mounting plate. Air connection WARNING Risk of injury when the machine/system moves unexpectedly! Remove the energy supplies. Make sure that no residual energy remains in the system. NOTICE Observe the requirements for the air supply. ( 5, Page 10) "Technical Data" 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. 12 12.03 SRU 20-60 en
Assembly and Commissioning 3 4 1 6 5 2 7 8 Fig. 3 compressed air connections A, B, C and D Ite m Designation Description Function 1 b Hose-free Swiveling 90-0 / 180-0 2 a direct connection Swiveling 0-90 / 0-180 3 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 / 0-180 8 B Swiveling 90-0 / 180-0 Pay attention to the following table when using flow controls. Air connection for variants with center position (M) 1 The air connections labeled "C" and "D" must be pressurized simultaneously (with a t-joint). 12.03 SRU 20-60 en 13
Assembly and Commissioning NOTICE In the variant with locked center position, the following can cause malfunctions! Do not install an exhaust air throttle. Observe table( 6.2, Page 14). Air connection for variants with locked center position (VM) NOTE The operating pressure of the lock must be between 4 and 6 bar. 1 Air connections "C" and "D" are available for actuating the locked center position ( 6.2, Page 13). 2 The lock can be engaged smoothly using a supply air throttle. Table. ( 6.2, Page 14) Variant with media feed-through 1 Connections marked with numbers are provided for feedthrough of the media on the pinion and the flange Use of throttles Module variant A B C D Without center positiotle Exhaust air throt- Exhaust air throt- - - / or no throttle tle / or no throttle With center position (M) With locked center position (VM)(VM) With locked center position (VM) and seperate main piston areas Exhaust air throttle / or no throttle Exhaust air throttle / or no throttle A1 Exhaust air throttle / or no throttle A2 no throttle! Exhaust air throttle / or no throttle Exhaust air throttle / or no throttle B1 Exhaust airthrottle / or no throttle B2 no throttle! Supply air throttle / or no throttle Supply air throttle / or no throttle / or Fast vent valve Supply air throttle / or no throttle Supply air throttle/ or no throttle Supply air throttle / or no throttle / or Fast vent valve Supply air throttle / or no throttle 14 12.03 SRU 20-60 en
Assembly and Commissioning 6.3 Adjusting the end positions Fig. 4 Basic setting NOTICE The end positions should not be changed by turning the axial hexagon socket at the face, or by turning the clamping nut or the shock absorber (VM-versions). This way the individual components can be unscrewed. Please use a 19 (SRU 20 25) or 32 (SRU 30 60), which is positioned at the hexagon of the stop cover 1 Loosen bolt (3) approx. one turn using hexagon socket wrench (SRU 20 40: 4, SRU 50 60: 5). 2 Apply air to connection "B". Unit swivels to stop A (1) (basic setting 0 ). 3 Set the desired end position by turning stop A. (For SRU 50-60; depressurize before adjusting) 4 Vent connection B and apply air to A. The unit swivels to stop B (3)(basic setting 180 ). 5 Set the required limit position by rotating stop B (3). (For SRU 50-60: depressurize before adjusting) 6 Tighten Screws (2) fully. (SRU 20-40: 10Nm; SRU 50-60: 24Nm) 7 Swivel repeatedly to test the limit position setting. NOTICE The limiting sleeves (depending on the variant item 7, 10, 25) limit the adjustment range of the stops. For safety reasons, the unit shoud only be operated with mounted limiting sleeves. 12.03 SRU 20-60 en 15
Assembly and Commissioning 6.4 Shock absorber travel - fine adjustment SRU 50 und SRU 60 NOTICE The module can leak if the maximum adjustment range is exceeded: Note the maximum adjustment range of 3 mm of the fine adjustment. Fig. 5 Shock absorber fine adjustment 1 Stop A 2 Stop B 16 12.03 SRU 20-60 en
Assembly and Commissioning Setting the dampening for end position 0 /180 NOTICE The maximum range for fine adjustment is 3 mm. After that, leakage begins in order to protect the unit. 1 (a) To adjust the damping in the end position 0, loosen the nut (1) at the limit A using a spanner 30 while counterholding the striker pin (2) with a hexagon socket key 10. (b) To adjust the damping in the end position 180, loosen the nut (item 101 b) at the limit B using a spanner 30 while counterholding the striker pin (4) with a hexagon socket key 10 2 Turning out the striker pin shortens the damping travel by 1.5 mm per revolution (max. 3 mm). 3 Swivel the loaded unit to check the damping effect. The end positions must be arrived at gently. 4 Retighten the nuts (1 and 2). 12.03 SRU 20-60 en 17
Assembly and Commissioning 6.5 Adjusting the center position (variant M) Fig. 6 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) with hexagon socket wrench (SRU 20-40: 4, SRU 50-60: 5) by approx. one turn. 2 Unscrew stops C (4) and D (6) as far as the limiting sleeve (5) 3 Apply air to the air connections marked C and D together The unit swivels to approx. 90 and has approx. 6 play in this position 4 Rotate the pinion clockwise and press it against stop C (4) 5 Turn stop C (4) until the desired centre position is reached 6 Turn stop D (6) until the pinion has no more play in centre position 7 Tighten the screw (3) securely again (SRU 20-40: 10Nm, SRU 50 60: 24 Nm) 8 Swivel the unit several times to check that the centre position is correctly set 18 12.03 SRU 20-60 en
Assembly and Commissioning 6.6 Adjusting the center position (variant VM) NOTICE The lock could be damaged! Pay attention to the description of Locked center position (variant VM). Fig. 7 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 Depending on the start-up direction of (stop A (2) or stop B (1)), the center position can be set the same or differently. 1 Ventilate all air connections. 2 Loosen the screw (4) about one turn with hexagon socket wrench (SRU-plus 20-40: 4, SRU 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". 12.03 SRU 20-60 en 19
Assembly and Commissioning 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 20-40: 10Nm, SRU 50-60: 24Nm). 12 Swivel repeatedly to test the center position setting ( 7.3, Page 27). 6.7 Mounting and adjusting the sensors The module is prepared for the use of the sensors IN 80 and MMS 22. 1 If you require further information on sensor operation, contact your SCHUNK contact person or download information from our homepage. 2 Technical data of the sensors are contained in the data sheets (included in the scope of delivery). 20 12.03 SRU 20-60 en
Assembly and Commissioning 6.7.1 Magnetic switch MMS 22 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 180 12.03 SRU 20-60 en 21
Assembly and Commissioning 6.7.2 Inductive proximity switches with male thread M8 NOTICE Take care to ensure that the sensors do not collide with the control cams during swivel movements. 1 Remove the round cover plates from the housing and fit the brackets (90) with the supplied hexagon socket screws (97). Ensure that the cylindrical collar of the holder is seated in the recess in the housing. 2 Now screw the proximity switches (not included in mounting kit) into the brackets as far as they will go. Secure them in this position with the locking nut (94). 3 Fit the control cams (92 and 93) to the control cam retaining plate (item 96) and mount these on the pinion using the centring sleeves. 4 Turn the pinion anti-clockwise as far as stop A. Using a hexagon socket wrench, loosen the long control cam (93) and move it until it touches the proximity switch at stop A. Turn the pinion back again and fix the control cam in place. To set the sensing distance, turn the pinion to stop A once again (if necessary, facilitate this by applying air to connection B). 5 With a hexagon socket wrench, loosen the locating bolt (98). Turn the setting screw until the proximity switch responds. Rotation clockwise ( ) increases the distance, rotation anti- 22 12.03 SRU 20-60 en
Assembly and Commissioning clockwise (+) reduces it. If larger adjustments are required, the locating bolt will have to be slackened off again. 6 Once you have set the sensing distance, tighten the locating bolt fully by turning clockwise 7 Proceed as above for setting the centre position and stop B. Take care to ensure that the sensors do not collide with the control cams during swivel movements. 12.03 SRU 20-60 en 23
Function and handling 7 7.1 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. 8 end position adjustability 3 Fig. 9 end position adjustability 90 Fig. 10 Variant swivel angle 90 24 12.03 SRU 20-60 en
Function and handling 7.2 Basic setting 90 Center position (variant M) 1 Actuate air connections "C" and "D". The pinion rotates to the centre position. The centre position can be adjusted by ± 3. Due to the way in which the unit works, overshoot may occur in the centre position. Fig. 11 Actuation with a 5/3-way and a 3/2-way valve Fig. 12 1 Exhaust line 12.03 SRU 20-60 en 25
Function and handling 7.3 Locked center position (variant VM) WARNING Risk of injury if 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 extend without striking the drive pistons. Note the circuit diagram ( 7.3, Page 27). 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 Extend locking piston C. 2 Actuate connection A. Move from the 180 position to the center position 1 Extend locking piston D. 2 Actuate air connection B. NOTE Before actuating C and D, connections A and B must be completely ventilated. 26 12.03 SRU 20-60 en
Function and handling Circuit diagram control (example) Fig. 13 Actuation with two 5/3 directional control valves If there is a danger that the unit might swivel unintentionally during the venting of the drive pistons (e.g. horizontal swivel axis with an asymmetrical load), the separator sleeves (item 96 in the enclosed pack) must be screwed into the air connections A1 and B1. The two cylinder areas of connections A and B can then each be actuated separately. The following illustration shows holding the load at 0 by keeping B1 loaded until C is locked. 12.03 SRU 20-60 en 27
Function and handling Fig. 14 In order to reduce the drive torque during the swivel movement (e.g. unilateral load falling), it is possible to load just one piston area (1 or 2). The following piston areas should be loaded at least in the end and / or centre position to avoid play in the output shaft: 0 B1 180 A1 90 A2 respectively B2 By installing the separator sleeve, it is also possible to insert exhaust flow controls in the connections A1 and B1. A2 and B2 then remain unrestricted. 28 12.03 SRU 20-60 en
Function and handling 7.3.1 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. 15 1 Screw the separating sleeve 2x (2) from the accessory pack into hose connection holes A and B until the end of the threads. 2 Screw back until the flattened side points towards the middle of the housing. 3 Check the correct orientation: With the orientation of the Allen key After removing the set screw (34) via direct- air connections on the laterally mounting surface. 4 Fit the hose connections A1, A2, B1 and B2. Position of the hose connectionsposition of the air connections 12.03 SRU 20-60 en 29
Maintenance and care 8 8.1 Maintenance and care Maintenance intervals NOTICE At ambient temperature above 60 C the lubricants can harden faster. Interval decrease accordingly. To ensure the function, we recommend regular testing of the seals and the mechanism after around 4 million swivel movements, respectively 2 million cycles. 8.2 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. Lubrication point Lubricant the teeth and the pinion LINOMAX Metallic sliding surfaces Renolit HLT 2 All seals Renolit HLT 2 30 12.03 SRU 20-60 en
Maintenance and care 8.3 Dismantling the module 8.3.1 Dismantling the rotary actuator Position of the position numbers ( 9, Page 39) 1 Remove all pressure and power lines 2 Unscrew bolt (35), remove bolt and both stop covers Without centre setting: - Remove the curved cover (5) With centre setting: - Unscrew the bolt (35) on stops C and D by one revolution - Remove the fastening bolt (58) of the locating sleeve (25) - Unscrew stops C and D until the centre position housing (14) can be removed 3 Mark the installation position of the pinion (2/ 19) and the piston (24) 4 Disassemble the protective cover (22) and the snap ring on the pinion (49) 5 Media feed through option: - Remove the flange (20) 6 Push the pinion (2 / 19) out of the housing. 12.03 SRU 20-60 en 31
Maintenance and care 8.3.2 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 ( 9, Page 39) 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). 32 12.03 SRU 20-60 en
Maintenance and care 8.4 Replacing a shock absorber The shock absorbers have a limited life depending on the load. The shock absorbers are specially adjusted and can only be obtained from SCHUNK. 1 Test the shock absorber for function regularly. The shock absorber functions correctly when the module moves smoothly into the limit positions. Base unit with internal shock absorber: Fig. 16 Fig. 17 Position numbers not listed: ( 9, Page 39) 1 Before turning, secure the adjusting sleeves (6) with a spanner wrench with pin (DIN 1810, form B). Should this key not be on hand, loose the clamping screw (35) about approx. 1 turn and remove the stop cover (8) and stop sleeve (6) together. After replacing the shock absorber the end position must be readjusted.( 6.3, Page 15) 2 Remove the safety rings (50) on the pistons. 3 Pull out the shock absorber (54). 4 Remove all fitting discs out of the drill hole. 12.03 SRU 20-60 en 33
Maintenance and care 5 Insert a new shock absorber. CAUTION: Observe the shock absorber overhang,shock absorber types and shock absorber overlap (h) and, if necessary, remove or add fitting discs. 6 Add fitting discs to the safety rings until they can be mounted without play. 7 Clean the threads of the stop cover (8) 8 Reattach the stop cover (8), screw it into place and secure with Loctite Nr. 243. with external absorbers Option locked center position (VM variant) Fig. 18 1 Release the lock nuts (74) of the shock absorber 2 Unscrew the shock absorber from the thread. 3 Fully screw in the new shock absorber. 4 Fit the O-ring (47) on the shock absorber 5 Screw on the lock nuts (74) and tighten them. 6 Swivel repeatedly to test the setting. ( 7.3, Page 27) with internal absorbers Fig. 19 1 Unscrew the countersunk screw (35) on stops C and D by one turn. 2 Remove the countersunk screw (58). 34 12.03 SRU 20-60 en
Maintenance and care 3 Unscrew stops C and D until the centering housing (14) can be removed. 4 Remove the safety rings (50). 5 Pull out the shock absorber (54). NOTICE During mounting, it is possible to damage the O-rings (41). Mount the shock absorbers carefully. 6 Insert the new shock absorbers. CAUTION: Note the shock absorber distance ( 8.4.2, Page 37); if need be, insert or remove the fitting disks. 7 Add fitting discs to the safety rings until they can be mounted without play. 12.03 SRU 20-60 en 35
Maintenance and care 8.4.1 How to use the shock absorbers and installation dimensions SRU Base Locked centre position Shock absorber Overhang of the shock absorber Shock absorber 20,1 MC 150 MH2 ( 8.4.2, ±0,1 20,2 MC 150 MH2 Page 37) ±0,1 MC 150 MH2 25,1 MC 150 MH2 ±0,1 25,2 WP-M 0.25-456 9,2 ±0,05 MC 150 MH2 35,1 MC 225 MH2 ( 8.4.2, ±0,1 35,2 MC 225 MH2 Page 37) ±0,1 MC 225 MH2 40,1 MC 600 MH ±0,1 40,2 Mc 600 MH2 ±0,1 MC 600 MH2 50,1 Mc 600 MH2 ±0,1 50,2 WP-M 1.0-166 17,5 ±0,05 MC 600 MH2 60,1 WP-M 1.0-166 17,5 ±0,05 60,2 WP-M 1.0-166 17,5 ±0,05 MC 600 MH2 Overhang of the shock absorber ( 8.4.2, Page 37) ( 8.4.2, Page 37) ( 8.4.2, Page 37) ( 8.4.2, Page 37) ( 8.4.2, Page 37) ( 8.4.2, Page 37) ±0,1 ±0,1 ±0,1 ±0,1 ±0,1 ±0,1 36 12.03 SRU 20-60 en
Maintenance and care 8.4.2 Measuring instruction Installation is done as follows: Fig. 20 Shock absorber 1 Measure the overhang (x) of the shock absorber's plunger. Fig. 21 Shock absorber with shock absorber's plunger in pushed-in position 2 Measure the overhang (y) of the shock absorber's plunger in pushed-in position. Fig. 22 Shock absorber 3 Calculate the stroke of the shock absorber (h).h = x - y - 0,2 mm 4 Adjust the overhang (h) of the shock absorber. 12.03 SRU 20-60 en 37
Maintenance and care 8.5 Servicing and assembling the module Position of the position numbers ( 9, Page 39) 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. 38 12.03 SRU 20-60 en
Assembly drawings 9 Assembly drawings Fig. 23 Stop side locked centre position (version VM) Fig. 24 Stop side adjustability of final position 90 Fig. 25 Stop side adjustability of final position 3 12.03 SRU 20-60 en 39
Assembly drawings Fig. 26 Basic components and media feed through 40 12.03 SRU 20-60 en
Assembly drawings Fig. 27 Attachment locked centre position (version VM) Fig. 28 Piston and cover basic unit Fig. 29 Attachment centre position (version M) 12.03 SRU 20-60 en 41
Seal kit 10 Seal kit ID.-No. of the seal kitsru Sealing kit for SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 Basic seal kit 0371000 0371004 5518598 0371008 0371012 0371016 0371020 with center position 0371001 0371005 5518600 0371009 0371013 0371017 0371021 with locked center position 0371002 0371006 5518601 0371010 0371014 0371018 0371022 with media feed-through 0371003 0371007 5518599 0371011 0371015 0371019 0371023 with center position and media feed-through 5517804 5517805 5517806 5517807 5517808 5517809 5517810 with locked center position and media feed-through 5517811 5517812 5517813 5517814 5517815 5517816 5517817 Contents of the seal kit ( 9, Page 39). 42 12.03 SRU 20-60 en
Accessories pack 11 Accessories pack ID.-No. of the accessory pack SRU Accessory pack for SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 without media feed-through 5514981 5518653 5514989 5514993 5514997 5515001 with media feed-through 5514982 5518654 5514990 5514994 5514998 5515002 with center position 5516590 5518657 5516594 5516596 5516598 5516600 with locked center position 5514983 5518655 5514991 5514995 5514999 5515003 with media feed-through and center position 5516591 5518658 5516595 5516597 5516599 5516601 with media feed-through and locked center position 5514984 5518656 5514992 5514996 5515000 5515004 Contents of the accessories pack ( 9, Page 39). 12.03 SRU 20-60 en 43
Wear parts 12 Wear parts O-rings Item Designation SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 40 O-ring DIN 3771 NBR 70 41 O-ring DIN 3771 NBR 70 43 O-ring DIN 3771 NBR 70 46 O-ring DIN 3771 NBR 70 76 O-ring DIN 3771 NBR 70 102 O-ring DIN 3771 NBR 70 41 O-ring DIN 3771 NBR 70 42 O-ring DIN 3771 NBR 70 41 O-ring DIN 3771 NBR 70 143 O-ring DIN 3771 NBR 70 41 O-ring DIN 3771 NBR 70 42 O-ring DIN 3771 NBR 70 Size designation / Quantity x Id-No. 23 x 1.0 9939228 27 x 1.5 9939230 17 x 1.5 9900286 25 x 1.5 9611143 35 x 1.5 9611053 2 1.5 9611096 33 x 1.5 9942184 41 x 1.5 9942127 29 x 1.5 9935428 38 x 1.0 9939231 45 x 1.5 9611052 3 1.5 9936055 15 x 1.5 5 x 9611482 17 x 1.5 5 x 9900286 6 x 1.0 9611063 5 x 1.5 9611131 1 1.5 9611159 27 x 1.5 9939230 35 x 1.5 9942127 41 x 1.5 9611052 45 x 1.5 9611052 43 x 1.5 9611101 50 x 1.5 9611118 36 x 1.5 9611226 23 x 1.5 9 x 9611066 50 x 1.5 9611118 5 1.0 9937019 60 x 1.5 9935467 46 x 1.5 9948373 27 x 1.5 9 x 9939230 13 x 1.5 9611061 60 x 1.5 9935467 6 x 1.0 2x 9611063 10 x 1.0 2x 9611044 27 x 1.5 9939230 26 x 1.2 9611474 27 x 1.5 10 x 9939230 35 x 1.5 9611053 3 1.5 9936055 35 x 1.5 10 x 9611053 41 x 1.5 9942127 31 x 1.5 9935307 41 x 1.5 9942127 45 x 1.5 9611052 41 x 1.5 9942127 45 x 1.5 8 x 9611052 50 x 1.5 9611118 48 x 1.5 9939154 50 x 1.5 8 x 9611118 60 x 1.5 9935467 56 x 1.5 9938388 60 x 1.5 10 x 9935467 6 x 1 9611063 10 x 1.0 9611044 65 x 1.5 9939232 7 1.5 9611117 57 x 1.5 9940053 7 1.5 9611117 7 1.5 9611117 71.5 x 1.5 9935792 7 1.5 10 x 9611117 44 12.03 SRU 20-60 en
Wear parts Item Designation SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 143 O-ring DIN 3771 NBR 70 84 O-ring DIN 3771 NBR 70 Size designation / Quantity x Id-No. 26 x 1.2 9611474 3 1.5 9936055 31 x 1.5 2x 9935307 41 x 1.5 9942127 2.0 x 1 9935984 3.0 x 1 4 x 9611054 48 x 1.5 9939154 3.5 x 1 8 x 9611300 56 x 1.5 9938388 71.5 x 1.5 9935792 3.5 x 1 8 x 9941343 Shock absorber Item Designation SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 54 Shock absorber (pressure appl. to 1 port) 54 Shock absorber (pressure appl. to 2 ports) Size designation / Quantity x Id-No. 9941662 9951813 9941662 9941661 9951813 54 Shock absorber 9701000 9951816 57 Shock absorber 9701000 9951816 9949532 9949532 9949532 9949532 9941268 9941268 9941268 9941268 9941268 9941268 9941268 9941634 9941268 9941634 9941268 9941634 12.03 SRU 20-60 en 45
Wear parts Miscellaneous Item Designation SRU 20 SRU 25 SRU 30 SRU 35 SRU 40 SRU 50 SRU 60 44 Cylinder seal QR 15.60 x 1.78 9610009 48 Piston guide ring A Ø x I Ø x B Size designation / Quantity x Id-No. 20 x 16 x 4 9939296 25 x 19 x 3.25 9937642 25 x 21 x 4 9939297 3 26 x 2.55 9948767 3 28 x 4 9948929 35 x 27 x 3.25 9938989 35 x 31 x 4 9938298 40 x 3 3.25 9907470 40 x 36 x 4 9939003 50 x 4 3.25 9635507 40 x 46 x 4 9939295 73 Sealing ring for M5 9659003 for G 1/8 9905376 59 Quad- ring AS568A NBR 70 45 Quad- ring AS568A NBR 70 18.77 x 1.78 9610125 10.8 1.78 9610066 21.89 x 2.62 9936629 15.5 2.62 9938983 28.7 2.62 9610025 18.7 2.62 9610020 31.4 2.62 9610026 21.89 x 2.62 9936629 47 Seal GM 2000 M14 9937426 M20 9937424 51 Safety ring DIN 472/ST 59 Quad- ring AS568A NBR 70 15 x 1.0 9621010 18.77 x 1.78 9610125 20 x 1.0 9621013 21.89 x 2.62 9936629 2 1.2 9950595 28.2 2.62 9610025 28 x 1.2 9621006 31.4 2.62 9610026 36.17 x 2.62 9620100 26.17 x 2.62 9610024 47.29 x 2.62 9610226 34.59 x 2.62 9610122 M24 9937423 3 1.2 9936425 36.17 x 2.62 9620100 40 x 1.75 9621029 47.29 x 2.62 9610226 60 x 5 3.25 9938990 60 x 56 x 4 9939004 56.8 2.62 9610252 42.5 2.62 9935309 45 x 1.75 9936698 56.8 2.62 9610252 46 12.03 SRU 20-60 en
Translation of original declaration of incorporation 13 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. 106 134 D-74348 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 0357300 0354840 Pneumatic Swivel Unit / SRU 20-60 / 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 12100:2011-03 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 12.03 SRU 20-60 en 47
48 12.03 SRU 20-60 en