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ROTEX® Operating/Assembly instructions Type ZR KTR-N Sheet: Edition: 40215 EN 1 of 15 3 ROTEX® Torsionally flexible jaw couplings type ZR and their combinations Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR KTR-N Sheet: Edition: 40215 EN 2 of 15 3 ROTEX® is a torsionally flexible jaw coupling. It is able to compensate for shaft misalignment, for example caused by manufacturing inaccuracies, thermal expansion, etc. The double-cardanic design of the coupling allows to compensate for higher radial displacements. Type ZR is not permissible for crane drives and hoist drives. For vertical assembly of type ZR it is necessary to use a pulling washer in the cam ground of the hub at the bottom. Table of contents 1 Technical data 3 2 Advice 5 2.1 2.2 2.3 2.4 2.5 2.6 5 5 5 5 6 6 3 4 General advice Safety and advice symbols General hazard warnings Intended use Coupling selection Reference to EC Machinery Directive 2006/42/EC Storage, transport and packaging 6 3.1 3.2 6 6 Storage Transport and packaging Assembly 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 7 Components of the coupling Advice for finish bore Assembly of the coupling (general) Assembly of the hubs Assembly of DH clamping hubs Assembly of the ZR spacer Displacements - alignment of the couplings Critical bending speed 7 8 9 9 10 10 11 12 5 Start-up 13 6 Breakdowns, causes and elimination 13 7 Disposal 15 8 Maintenance and service 15 9 Spares inventory, customer service addresses 15 Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 1 KTR-N Sheet: Edition: 40215 EN 3 of 15 3 Technical data Type ZR Illustration 1: Type ZR (with ROTEX® GS spider) Table 1: Dimensions and technical data Size 19 24 28 38 42 48 55 65 75 Spider 1) (component 2) Rated torque [Nm] 92 ShA 98 ShA 64 ShD 10 35 95 190 265 310 410 - 17 60 160 325 450 525 685 940 1920 21 75 200 405 560 655 825 1175 2400 Intermediate pipe Torsional stiffness ØRA C 3) [mm] [Nm2/rad] 20x3 954.9 30x4 4522 35x4 7611 40x4 11870 45x4 17487 50x4 24648 55x4 33544 65x5 68329 75x5 108000 Dimensions [mm] Max. finish bore d 2) 25 35 40 48 55 62 74 80 95 DH D l1; l2 E s b 40 55 65 80 95 105 120 135 160 40 55 65 66 75 85 98 115 135 25 30 35 45 50 56 65 75 85 16 18 20 24 26 28 30 35 40 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 12 14 15 18 20 21 22 26 30 Clamping hub (part 2.0) M1 19 24 28 M6 M6 M8 38 M8 42 M10 48 M12 55 65 75 M12 M12 M16 TA [Nm] 14 14 35 25 35 49 69 86 120 120 120 295 TR [Nm] 58 83 185 144 203 258 377 431 618 1418 1620 3500 Locking screw G1 M6 M8 M10 Pin hole Ødp 4.0 5.5 7.0 Number of screws 1 1 1 M12 8.5 1 M12 8.5 1 M16 12 1 M16 M16 M16 12 12 12 2 2 2 LZR Hub material min. LR1 St St St Al-D St Al-D St Al-D St St St St 110 128 145 LZR = LR1 + 2 l1 Size Shaft distance dimension 180 198 217 242 281 318 1) Maximum torque of the coupling TK max = rated torque of the coupling TK rated x 2 2) Bores H7 with keyway to DIN 6885 sheet 1 [JS9] and thread for setscrew 3) Torsion spring stiffness with 1 m length of the intermediate pipe = standard Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 1 KTR-N Sheet: Edition: 40215 EN 4 of 15 3 Technical data Type ZR with clamping hubs DH Illustration 2: Type ZR with clamping hubs DH (for double-cardanic connection 7.5 or 7.6 with ROTEX® GS spider) Table 2: Dimensions and technical data 19 24 28 38 42 48 55 65 75 92 ShA 98 ShA 64 ShD 10 35 95 190 265 310 410 - 17 60 160 325 450 525 685 940 1920 21 75 200 405 560 655 825 1175 2400 Dimensions [mm] Max. finish bore d 20 28 38 45 55 60 70 80 90 DH D l1; l2 x1; x2 E s b 40 55 65 80 95 105 120 135 160 40 55 65 80 85 95 110 115 135 25 30 35 45 50 56 65 75 85 17.5 22.5 25.5 35.5 39.0 45.0 50.0 60.0 67.5 16 18 20 24 26 28 30 35 40 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 12 14 15 18 20 21 22 26 30 Clamping hub (part 7.5 / 7.6) Size 19 24 28 38 42 48 55 65 75 M2 TA [Nm] M6 M6 M8 M8 M10 M12 M12 M12 M16 14 14 35 35 69 120 120 120 295 Number of screws 2 2 2 2 2 2 2 2 2 Hub material St St St St St St St St St Intermediate pipe Torsional stiffness ØRA C 2) [mm] [Nm2/rad] 20x3 954.9 30x4 4522 35x4 7611 40x4 11870 45x4 17487 50x4 24648 55x4 33544 65x5 68329 75x5 108000 LZH Shaft distance dimension min. LR2 LZH = LR2 + 2 x1 Size Spider 1) (component 2) Rated torque [Nm] 97 111 129 157 174 190 220 250 285 1) Maximum torque of the coupling TK max = rated torque of the coupling TK rated x 2 2) Torsion spring stiffness with 1 m length of the intermediate pipe Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 2 KTR-N Sheet: Edition: 40215 EN 5 of 15 3 Advice 2.1 General advice Please read through these operating/assembly instructions carefully before you start up the coupling. Please pay special attention to the safety instructions! The operating/assembly instructions are part of your product. Please store them carefully and close to the coupling. The copyright for these operating/assembly instructions remains with KTR. 2.2 Safety and advice symbols STOP ! Warning of personal injury This symbol indicates notes which may contribute to preventing bodily injuries or serious bodily injuries that may result in death. Warning of product damages This symbol indicates notes which may contribute to preventing material or machine damage. General advice This symbol indicates notes which may contribute to preventing adverse results or conditions. Warning of hot surfaces This symbol indicates notes which may contribute to preventing burns with hot surfaces resulting in light to serious bodily injuries. 2.3 General hazard warnings STOP With assembly, operation and maintenance of the coupling it has to be made sure that the entire drive train is secured against accidental switch-on. You may be seriously hurt by rotating parts. Please make absolutely sure to read through and observe the following safety indications. All operations on and with the coupling have to be performed taking into account "safety first". Please make sure to switch off the power pack before you perform your work on the coupling. Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on or removing the fuse for current supply. Do not reach into the operating area of the coupling as long as it is in operation. Please secure the coupling against accidental contact. Please provide for the necessary protection devices and covers. 2.4 Intended use You may only assemble, operate and maintain the coupling if you have carefully read through the operating/assembly instructions and understood them had technical training are authorized by your company The coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications on the coupling design are not admissible. We will not assume liability for any damage that may arise. In the interest of further development we reserve the right for technical modifications. ® The ROTEX described in here corresponds to the technical status at the time of printing of these operating/assembly instructions. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 2 KTR-N Sheet: Edition: 40215 EN 6 of 15 3 Advice 2.5 Coupling selection ! For a permanent and failure-free operation of the coupling it must be selected according to the selection instructions (according to DIN 740 part 2) for the particular application (see ® catalogue drive technology "ROTEX "). If the operating conditions (performance, speed, modifications on engine and machine) change, the coupling selection must be reviewed. Please make sure that the technical data regarding torque refer to the spider only. The transmittable torque of the shaft-hub-connection must be reviewed by the customer and is subject to his responsibility. For drives subject to torsional vibrations (drives with cyclic stress due to torsional vibrations) it is necessary to perform a torsional vibration calculation to ensure a reliable selection. Typical drives subject to torsional vibrations are e. g. drives with diesel engines, piston pumps, piston compressors etc. If requested, KTR will perform the coupling selection and the torsional vibration calculation. 2.6 Reference to EC Machinery Directive 2006/42/EC The couplings supplied by KTR should be considered as components, not machines or partly completed machines according to EC Machinery Directive 2006/42/EC. Consequently KTR does not have to issue a declaration of incorporation. For details about safe assembly, start-up and safe operation please refer to the present operating/assembly instructions considering the warnings. 3 Storage, transport and packaging 3.1 Storage The coupling hubs are supplied in preserved condition and can be stored at a dry and roofed place for 6 - 9 months. The features of the coupling spiders (elastomers) remain unchanged for up to 5 years with favourable storage conditions. ! The storage rooms must not include any ozone-generating devices like e. g. fluorescent light sources, mercury-vapour lamps or electrical high-voltage appliances. Humid storage rooms are not suitable. Please make sure that condensation is not generated. The best relative air humidity is less than 65 %. 3.2 Transport and packaging ! In order to avoid any injuries and any kind of damage please always make use of proper transport and lifting equipment. The couplings are packed differently each depending on size, number and kind of transport. Unless otherwise contractually agreed, packaging will follow the in-house packaging specifications of KTR. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 7 of 15 3 Assembly The coupling is supplied as an assembled/pre-assembled unit or in individual parts. Before assembly the coupling has to be inspected for completeness. 4.1 Components of the coupling Components of ROTEX® type ZR Component 1 2 3 4 5 6 7 Quantity 2 2 2 1 see table 1 and 2 1) 2 Description Hub Spider ZR clamping hub ZR intermediate pipe Cap screws DIN EN ISO 4762 Setscrews DIN EN ISO 4029 Setscrews with pins DIN EN ISO 4028 1) depending on hub (component 1) Illustration 3: ROTEX® type ZR Features of standard spiders Spider hardness (Shore) Size Material 92 ShA-GS 19 - 55 Polyurethane 98 ShA-GS 19 - 75 Polyurethane 64 ShD-H-GS 19 - 38 Hytrel 64 ShD-GS 42 - 75 Polyurethane Marking (colour) Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 8 of 15 3 Assembly 4.2 Advice for finish bore The maximum permissible bore diameters d (see table 1 and 2 in chapter 1 - technical data) must not be exceeded. If these figures are disregarded, the coupling may tear. Rotating particles may cause danger to life. STOP Hub bores machined by the customer have to observe concentricity or axial runout, respectively (see illustration 4). Please make absolutely sure to observe the figures for Ø dmax. Carefully align the hubs when the finish bores are drilled. Please provide for a setscrew according to DIN EN ISO 4029 with a cup point or an end plate to fasten Illustration 4: Concentricity and axial runout the hubs axially. The customer bears the sole responsibility for all machining processes performed subsequently on unbored or pilot bored as well as finish machined coupling components and spare parts. KTR does not assume any warranty claims resulting from insufficient remachining. ! Table 3: Setscrews DIN EN ISO 4029 Size Dimension G Dimension t Tightening torque TA [Nm] 19 M5 10 2 24 M5 10 2 28 M8 15 10 38 M8 15 10 42 M8 20 10 48 M8 20 10 55 M10 20 17 65 M10 20 17 75 M10 25 17 Table 4: Recommended fit pairs acc. to DIN 748/1 Bore [mm] above up to 50 50 Shaft tolerance Bore tolerance k6 m6 H7 (KTR standard) If a feather keyway is intended to be used in the hub, it should correspond to the tolerance ISO JS9 (KTR standard) with normal operating conditions or ISO P9 with difficult operating conditions (frequently alternating torsional direction, shock loads, etc.). The keyway should preferably be located between the cams. With axial fastening by setscrews the tapping should be located on the keyway except for Al-D which should be located opposite the keyway. The transmittable torque of the shaft-hub-connection must be reviewed by the customer and is subject to his responsibility. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 9 of 15 3 Assembly 4.3 Assembly of the coupling (general) We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy before assembly. Heating the hubs lightly (approx. 80 °C) allows for an easier mounting on the shaft. STOP ! Touching the heated hubs causes burns. Please wear safety gloves. With the assembly please make sure that the distance dimension E (see table 1 and 2) is observed to allow for axial clearance of the spider when in operation. Disregarding this advice may cause damage to the coupling. 4.4 Assembly of the hubs Mount the hubs on the shaft of driving and driven side (see illustration 5). The internal sides of the hubs must be flush with the front sides of the shafts. Shift the power packs in axial direction until the dimension LR1 is achieved (see illustration 1). Fasten the hubs by tightening the setscrews DIN EN ISO 4029 with a cup point (tightening torque see table 3). Illustration 5: Assembly of the hubs Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 10 of 15 3 Assembly 4.5 Assembly of DH clamping hubs Remove the half shells from the hub body (see illustration 6). Put the hub body with the cap screws installed on the shaft (see illustration 7). Position the half shells towards the hub body (see illustration 8). Screw in the cap screws for several pitches. The radial kerf of the DH clamping hubs must be flush with the front sides of the shafts. Hand-tighten the components first until the hub bodies with the half shells fit closely to the shaft. Secure the DH clamping hubs by tightening the clamping screws reciprocally. The screws have to be tightened at the tightening torques TA specified in table 2 by means of a suitable torque wrench. Shift the power packs in axial direction until the dimension LR2 is achieved (see illustration 2). Illustration 6 Illustration 7 Illustration 8 4.6 Assembly of the ZR spacer Shift the ZR clamping hub onto the ZR intermediate pipe (see illustration 9). Insert the spiders in the cam section of the hubs or clamping hubs DK, respectively. Insert the pre-assembled unit between the hubs (see illustration 10). Align the ZR clamping hubs to the dimension E resp. s required (see illustration 1 and 2 as well as table 1 and 2). Illustration 9: Assembly of ZR clamping hubs on the ZR intermediate pipe Hand-tighten the ZR clamping hubs first. Tighten the cap screws to the tightening torques T A specified in table 1 by means of a suitable torque key. Drill the through holes Ødp (see illustration 1 and table 1) in the ZR intermediate pipe for the setscrews with pin DIN EN ISO 4028. Screw in the setscrews with pin against a stop. Illustration 10: Assembly of the ZR spacer ® With vertical assembly of ROTEX type ZR a special washer of KTR has to be inserted between the coupling hub at the bottom and the spider at the bottom. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 11 of 15 3 Assembly 4.7 Displacements - alignment of the couplings The displacement figures specified in table 5 provide for sufficient safety to compensate for external influences like, for example, thermal expansion or foundation settling. ! In order to ensure a long service life of the coupling, the shaft ends have to be accurately aligned. Please absolutely observe the displacement figures specified (see table 5). If the figures are exceeded, the coupling will be damaged. The more accurate the alignment of the coupling, the longer is its service life. Please note: The displacement figures specified in table 5 are maximum figures which must not arise in parallel. If radial and angular displacements arise at the same time, the permissible displacement values may only be used proportionally (see illustration 12). Please inspect with a dial gauge, ruler or feeler gauge whether the permissible displacement figures specified in table 5 can be observed. Angular displacements Axial displacements Illustration 11: Displacements Radial displacements Example: Illustration 12: Combinations of displacement ® ROTEX 24 ZR, Speed 1500 rpm, Coupling length LZR = 651 mm Max. radial displacement Kr = 10 mm Max. angular displacement Kw = 1° with radial displacement of 4 mm = 40 % of the max. radial displacement 10 mm, results in a permissible angular displacement of 60 % of the max. angular displacement 1° = 0.6° Ktotal = Kw + Kr 100 % Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 4 KTR-N Sheet: Edition: 40215 EN 12 of 15 3 Assembly 4.7 Displacements - alignment of the couplings Table 5: Displacement figures Size 19 24 28 38 42 48 55 65 75 Max. axial displacement Ka [mm] 1.2 1.4 1.5 1.8 2.0 2.1 2.2 2.6 3.0 Max. angular displacement Kw [degree] with n = 1500 rpm 3000 rpm Max. radial displacement Kr [mm] 1) Calculate the distance from the center of one spider to the center of the other spider LZK (see illustration 1 and 2) 1.0 LZK = LZR - 2 x l1 - E 0.75 2) Calculate the maximum radial displacement Kr (see illustration 11) Kr = tanKw x LZK 4.8 Critical bending speed Please observe the critical bending speed of the coupling. Illustration 13: Critical bending speed of type ZR Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 5 KTR-N Sheet: Edition: 40215 EN 13 of 15 3 Start-up Before start-up of the coupling, inspect the tightening of the setscrews in the hubs, the alignment and the distance dimension E and adjust, if necessary, and also inspect all screw connections for the tightening torques specified, dependent on the type of coupling. Finally the coupling protection against accidental contact must be fitted. It is required in accordance with DIN EN ISO 12100 (Safety of Machinery) and directive 2014/14/EU and must protect against access with the little finger falling down of solid foreign objects. The cover may provide for openings intended for necessary heat dissipation. These openings have to comply with DIN EN ISO 13857. The cover must be electrically conductive and included in the equipotential bonding. Bellhousings (magnesium share below 7.5 %) made of aluminium and damping rings (NBR) can be used as connecting element between pump and electric motor. The cover may only be taken off with standstill of the unit. During operation of the coupling, please pay attention to different operating noise vibrations occurring. ! 6 If you note any irregularities with the coupling during operation, the drive unit must be switched off immediately. The cause of the breakdown must be specified by means of the table „Breakdowns“ and, if possible, be eliminated according to the proposals. The potential breakdowns specified can be hints only. To find out the cause all operating factors and machine components must be considered. Breakdowns, causes and elimination ® The below-mentioned failures can lead to a use of the ROTEX coupling other than intended. In addition to the specifications given in these operating and assembly instructions make sure to avoid such failures. The errors listed can only be clues to search for the failures. When searching for the failure the adjacent components must generally be considered. General failures with use other than intended: Important data for the coupling selection were not forwarded. The calculation of the shaft-hub-connection was disregarded. Coupling components with damage occurred during transport are assembled. If the heated hubs are assembled, the permissible temperature is exceeded. The fit of the components to be assembled is not coordinated with one another. Tightening torques have been fallen below/exceeded. Components are mixed up by mistake/assembled incorrectly. A wrong or no spider is inserted in the coupling. No original KTR components (purchased parts) are used. Old/already worn out spiders or spiders stored for too long are used. Maintenance intervals are not observed. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 6 KTR-N Sheet: Edition: 40215 EN 14 of 15 3 Breakdowns, causes and elimination Breakdowns Causes Elimination Misalignment Different operating noise and/or vibrations occuring Wear of spider, short-term torque transmission due to metal contact Screws for axial fastening of hubs working loose Wear of spider, torque transmission due to metal contact Fracture of the cams due to high impact energy/overload Fracture of cams Operating parameters do not meet with the performance of the coupling Operating error of the unit Misalignment Early wear of spider e. g. contact with aggressive liquids/oils, ozone influence, too high/low ambient temperatures etc. causing physical modification of the spider Ambient/contact temperatures which are too high for the spider, max. permissible ® e. g. with T-PUR T4 = - 50 °C/+ 120 °C Early wear of spider (liquefaction of material inside the spider cam) Please observe protection note ISO 16016. Vibrations of drive Drawn: Verified: 1) Set the unit out of operation 2) Eliminate the reason for the misalignment (e. g. loose foundation bolts, breaking of the engine mount, thermal expansion of unit components, modification of the installation dimension E of the coupling) 3) For inspection of wear see item inspection 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the spider 3) Inspect coupling components and replace coupling components that have been damaged 4) Insert spider, assemble coupling components 5) Inspect alignment, adjust if necessary 1) Set the unit out of operation 2) Inspect alignment of coupling 3) Tighten the screws to fasten the hubs and secure against working loose 4) For inspection of wear see item inspection 1) Set the unit out of operation 2) Replace complete coupling 3) Inspect alignment 1) Set the unit out of operation 2) Replace complete coupling 3) Inspect alignment 4) Find out the reason for overload 1) Set the unit out of operation 2) Review the operating parameters and select a bigger coupling (consider mounting space) 3) Assemble new coupling size 4) Inspect alignment 1) Set the unit out of operation 2) Replace complete coupling 3) Inspect alignment 4) Instruct and train the service staff 1) Set the unit out of operation 2) Eliminate the reason for the misalignment (e. g. loose foundation bolts, breaking of the engine mount, thermal expansion of unit components, modification of the installation dimension E of the coupling) 3) For inspection of wear see item inspection 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the spider 3) Inspect coupling components and replace coupling components that have been damaged 4) Insert spider, assemble coupling components 5) Inspect alignment, adjust if necessary 6) Make sure that further physical modifications of the spider are excluded 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the spider 3) Inspect coupling components and replace coupling components that have been damaged 4) Insert spider, assemble coupling components 5) Inspect alignment, adjust if necessary 6) Inspect and adjust ambient/contact temperature (possibly corrective by using different spider materials) 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the spider 3) Inspect coupling components and replace coupling components that have been damaged 4) Insert spider, assemble coupling components 5) Inspect alignment, adjust if necessary 6) Find out the reason for the vibrations (possibly corrective by spider with lower or higher Shore hardness) 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ROTEX® Operating/Assembly instructions Type ZR 7 KTR-N Sheet: Edition: 40215 EN 15 of 15 3 Disposal In respect of environmental protection we would ask you to dispose of the packaging or products on termination of their service life in accordance with the legal regulations and standards that apply, respectively. Metal Any metal components have to be cleaned and disposed of by scrap metal. Nylon materials Nylon materials have to be collected and disposed of by a waste disposal company. 8 Maintenance and service ® ROTEX is a low-maintenance coupling. We recommend to perform a visual inspection on the coupling at least once a year. Please pay special attention to the condition of the coupling spiders. Since the flexible machine bearings of the driving and driven side settle during the course of load, please inspect the alignment of the coupling and re-align the coupling, if necessary. The coupling components have to be inspected for damages. The screw connections have to be inspected visually. Having started up the coupling the tightening torques of the screws have to be inspected during the usual inspection intervals. ! 9 Spares inventory, customer service addresses A basic requirement to ensure the readiness for use of the coupling is a stock of the most important spare parts on site. Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at www.ktr.com. KTR does not assume any liability or warranty for the use of spare parts and accessories which are not provided by KTR and for the damages which may incur as a result. Please observe protection note ISO 16016. Drawn: Verified: 2018-08-28 Pz 2018-09-11 Pz Replacing: Replaced by: KTR-N dated 2014-03-11 ">

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