Schaeffler FAG HYDNUT-E Series User Manual Download Page 1

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Hydraulic Nuts

HYDNUT..-E, HYDNUT..-E-INCH

User manual

Summary of Contents for FAG HYDNUT-E Series

Page 1: ...Hydraulic Nuts HYDNUT E HYDNUT E INCH User manual...

Page 2: ......

Page 3: ...re Each hydraulic nut is marked with the maximum permissible pressure and the thread present This facilitates reliable operation and damage free mounting Mounting and dismounting Mounting and dismount...

Page 4: ...rotective equipment 5 Safety regulations 6 Scope of delivery 7 Accessories 8 Further information 8 Damage during transit 8 Defects 8 Description Press ring 9 Annular piston 9 Sealing rings 9 Red O rin...

Page 5: ...t into place 44 Pressing back the annular piston HYDNUT50 E to HYDNUT190 E 47 Pressing back the annular piston HYDNUT200 E to HYDNUT1180 E 48 Decommissioning Storage 54 Troubleshooting 55 Maintenance...

Page 6: ...ur due to the escape under high pressure of hydraulic oil in the absence of important information for the user since the user manual is incomplete illegible or absent As the safety coordinator you mus...

Page 7: ...he intended purpose can lead to injury or damage Qualified personnel The hydraulic nut must only be used by suitably qualified personnel A person defined as qualified personnel has all the necessary k...

Page 8: ...peration usage of the hydraulic nut must be stopped immediately The hydraulic nut must always be stored and operated under the ambientconditionsdescribed Beforestorage preservativemust be applied to t...

Page 9: ...w 3 Screw plug G1 4 HYDNUT PLUG 2 Dismounting screw1 3 5 Valve nipple G1 4 PUMP1000 VALVE NIPPLE 1 Hand lever2 HYDNUT HANDHEBEL D10 PRT 1 HYDNUT HANDHEBEL D12 PRT 1 HYDNUT HANDHEBEL D16 PRT 1 Seal set...

Page 10: ...y does not include the following documents TPI 195 FAG Pressure Generation Devices TPI 196 Hydraulic Nuts HYDNUT MH 1 Mounting of Rolling Bearings WL 80110 Reduction in Radial Internal Clearance in Mo...

Page 11: ...de from steel supports the movable annular piston Annular piston The single piece annular piston is made from steel The annular piston has two slots for sealing rings and one flat slot for the red O r...

Page 12: ...his threaded hole in the outer cylindrical surface Folding clevis The complete hydraulic nut can be transported using a folding clevis of sufficient load carrying capacity not included in the scope of...

Page 13: ...and lever Only use hand levers that are of precisely the stated diameter and up to the maximum stated length Hand lever for HYDNUT E Hand lever for HYDNUT E INCH Designation Quantity Diameter from to...

Page 14: ...ring has two oil ducts The extension of each oil duct has a threaded hole G1 4 At an offset of 15 to the threaded hole for the folding clevis the outer cylindrical surface has a radial threaded hole...

Page 15: ...auge is a threaded hole for locating a clamping screw Clamping screw The clamping screw made from plastic is knurled and can be tight ened or loosened without the use of a tool It locates the clamping...

Page 16: ...the red O ring made from PVC Threaded holes for eye bolts In the case of hydraulic nuts HYDNUT410 or larger there are threaded holes in the annular piston At the pitch circle the holes have a spacing...

Page 17: ...line are observed The hydraulic line must fulfil all legal requirements valid at the point of use must be checked before each use must not be damaged must be approved for the operating pressure must b...

Page 18: ...il all legal requirements valid at the point of use must be checked before each use must not be damaged may only be operated at a pressure that is lower than the maximum permissible pressure of the hy...

Page 19: ...ubbles escapes from the second upper threaded hole G1 4 the hydraulic nut has been bled The screw plug is then screwed into the upper threaded holes G1 4 This creates a closed pressure chamber In the...

Page 20: ...and dismounting from an adapter sleeve can be carried out using the oil pressure method In this method an additional pressure generation device is used to press hydraulic oil between the fit surfaces...

Page 21: ...he hydraulic nut Figure 8 If mounting is carried out directly on the shaft the hydraulic nut cannot be used for dismounting However the hydraulic nut can remain on the shaft in dismounting and interce...

Page 22: ...ng the intermediate ring optional selecting and mounting the dial gauge selecting the pressure generation device Checking the hydraulic nut Before use it is advisable to check whether the hydraulic nu...

Page 23: ...fall A falling press ring can cause serious injury Always transport hydraulic nuts vertically CAUTION If a small hydraulic nut is carried horizontally with the annular piston facing down the annular...

Page 24: ...he clevis in the outer cylindrical surface of the press ring Hang a hook in the clevis or thread in a carrying sling Fit the securing belt Slowly lift the hydraulic nut until it hangs vertical Figure...

Page 25: ...ve nipple Figure 12 Check optically whether the seal is undamaged Figure 13 Replace any damaged seal A seal with the following characteristics is suitable type CEJN rubber metal seal operating pressur...

Page 26: ...E Damage to the mating thread during screw mounting if a thread is damaged Check the thread of the shaft or sleeve Repair any damaged thread if possible A hydraulic nut must not be screwed onto a dama...

Page 27: ...d NOTICE If the thread of the shaft journal or sleeve is subjected during mounting to the mass of the hydraulic nut scoring may occur in the thread Lift the hydraulic nut slightly and prevent the thre...

Page 28: ...rotation and axial displacement WARNING If the hydraulic nut tilts or falls from the mounting aid this can cause serious crushing of body parts Use an auxiliary device for screw mounting that has suff...

Page 29: ...e hydraulic nut ensure that no body parts are located in the gap between the hydraulic nut and shaft or adjacent construction Set down the hydraulic nut carefully on the mounting aid using a crane Fig...

Page 30: ...that the thread of the shaft or sleeve is not subjected to load by the entire mass of the hydraulic nut Adjust the height of the mounting aid Align the hydraulic nut exactly parallel and concentricall...

Page 31: ...cing the hydraulic nut ensure that no body parts are located in the gap between the hydraulic nut and shaft or adjacent construction Move the hydraulic nut in the direction of the shaft until the star...

Page 32: ...handling hole Rotate the hydraulic nut until the next handling hole is in the lower position Move the hand lever into the lower handling hole WARNING Injuries due to a hydraulic nut becoming loose fro...

Page 33: ...osen the hydraulic nut as necessary until the radial threaded hole G1 4 is in the upper position Figure 21 If necessary apply a mounting ring see page 32 The hydraulic nut is mounted and can be bled R...

Page 34: ...OTICE If there is too little interference the hydraulic nut may buckle and be destroyed If there is an interference of less than 90 a mounting ring must be used Measure the interference Produce the mo...

Page 35: ...earing may be damaged If a rolling bearing is mounted which has a projecting cage or if its outer ring can be axially displaced or tilted too much an intermediate ring must be applied Measure the nece...

Page 36: ...ts it is necessary to use an extension Figure 24 A suitable dial gauge has the following characteristics diameter of clamping shank 8 mm repeat precision 0 01 mm or higher interchangeable measuring pi...

Page 37: ...300 E INCH HYDNUT315 E 52 65 25 20 HYDNUT320 E HYDNUT350 E 53 67 HYDNUT320 E INCH HYDNUT340 E INCH 53 67 HYDNUT355 E HYDNUT365 E 54 69 HYDNUT360 E INCH 54 69 HYDNUT370 E HYDNUT385 E 55 71 50 20 HYDNUT...

Page 38: ...25 After mounting the measuring pin must be able to move by at least the drive up distance This is dependent on the bearing and can be found for example in TPI 196 Loosen the plastic clamping screw I...

Page 39: ...For the maximum drive up distance a certain oilquantity isrequired see table HYDNUT E HYDNUT E INCH 1 Assuming usage of a hydraulic line with a length of 1 m and an inside diameter of 4 mm Hydraulic...

Page 40: ...rrectly this will reduce the life of the rolling bearing or the rolling bearing will be damaged Please observe the specifications of the rolling bearing manufacturer Hydraulic oil The hydraulic oil us...

Page 41: ...operating pressure continuously The operating pressure must never exceed the maximum permissible pressure Figure 26 Technical data such as dimensions and the permissible pressure for hydraulic nuts c...

Page 42: ...e pressure generation device The hydraulic hose must be free from damage Observe the storage life date of the hydraulic hose NOTICE Damage to the pressure generation device and seals in the hydraulic...

Page 43: ...unt hose fasteners in order to prevent whipping by the hydraulic hose WARNING Serious injuries due to hydraulic oil spraying out of torn hose under high pressure because the hose was laid with an exce...

Page 44: ...re bleeding since refilling during operation is not permissible WARNING Blinding or injury to eyes due to spraying out of hydraulic oil under high pressure Ensure that the plug in coupling is securely...

Page 45: ...Schaeffler Technologies BA 04 43 Screw plug threaded hole G1 4 at top Collector device Pressure generation device Manometer Figure 29 Bleeding 000B0518 000B0518...

Page 46: ...sure method an additional pressure generation device is used to press hydraulic oil between the fit surfaces of the component and shaft or sleeve Figure 30 Red O ring The maximum drive up distance of...

Page 47: ...ng pressure excessive pressing out of the press ring Screw in the screw plug in the radial threaded hole G1 4 Measure the operating pressure continuously The operating pressure must never exceed the m...

Page 48: ...sed Switch the pressure generation device for the oil pressure method to unpressurised Wait 5 min Measure the radial or axial internal clearance Wait 30 min so that the oil can escape Pressure decreas...

Page 49: ...the pressure generation device WARNING Serious injuries due to spraying out of hydraulic oil if the pressure generation device is not switched to unpressurised and a hydraulic hose is detached A hydra...

Page 50: ...ar piston has been extended Figure 34 If the annular piston has been extended too far omit the following sections and go directly to page 53 Removing the hydraulic hose Before transporting the hydraul...

Page 51: ...is no longer screwed onto the shaft Figure 35 As necessary position the mounting aid at the end of the shaft Insert the hand lever into the lower handling hole Rotate the hydraulic nut until the next...

Page 52: ...ort as follows Figure 36 Screw a folding clevis into the threaded hole for the clevis in the outer cylindrical surface of the press ring Hang a hook in the clevis or thread in a carrying sling Fit the...

Page 53: ...Schaeffler Technologies BA 04 51 Transport the hydraulic nut without shocks or vibration Figure 37 Hydraulic nut Clevis Securing belt Figure 37 Transport 000B047D 000B047D...

Page 54: ...draulic oil if oil is prevented from returning to the tank of the pressure generation device Ensure the return of oil to the tank of the pressure generation device Connect the hose and the unpressuris...

Page 55: ...tion by hand In this case suitable tools such as screw clamps can be used Loosen the hydraulic nut until there is sufficient space for suitable tools such as screw clamps Figure 39 Connect the unpress...

Page 56: ...of vapours of the cleaning agent used Observe the safety and environmental guidelines of the cleaning agent manufacturer Storage All parts should be stored under the specified conditions see page 6 N...

Page 57: ...e at the manufacturer of the pressure generation device Malfunction Possible cause Remedy Hydraulic oil escaping in the area of the seal Seals damaged Replace seals see page 56 Hydraulic oil is contam...

Page 58: ...The ordering designation of the seal set is the designation of the hydraulic nut plus SEAL The seal set for the hydraulic nut HYTNUT100 E has the following ordering designation Ordering designation HY...

Page 59: ...iston facing up Figure 41 Remove the screw plug and valve nipple Screw in the dismounting screws consecutively until these are in contact with the annular piston Screw in each dismounting screw in tur...

Page 60: ...nular piston Remove the annular piston Figure 42 Dismounting the seals When removing the seals ensure that the seal slots remain undamaged For dismounting use a soft tool made from wood or plastic Lev...

Page 61: ...ffin oil have proved effective Clean the press ring and annular piston Carry out particularly thorough cleaning of the seal slots piston surface and piston guide face Figure 44 Press ring Annular pist...

Page 62: ...ing mounting ensure that the seals remain undamaged Oil both seal slots using hydraulic oil Figure 45 Insert new seals in the annular piston Figure 46 Seal slot Hydraulic oil Figure 45 Oiling the seal...

Page 63: ...sing hydraulic oil Figure 47 Mounting the annular piston During mounting ensure that the annular piston is fitted straight Figure 48 Piston guide faces Hydraulic oil Figure 47 Oiling the piston guide...

Page 64: ...on the press ring Press the annular piston into the press ring uniformly using three screw clamps until both seals have disappeared in the press ring Figure 49 Remove the screw clamps Strike the annul...

Page 65: ...g the hydraulic nut After dismounting the press ring and annular piston can be disposed of together with other steel parts The seals are made from plastic PVC Hydraulic oil must be collected and dispo...

Page 66: ...he press ring Accessories Replacement parts Only use FAG original accessories Designation Max tightening torque1 Hydraulic oil viscosity class Nm mm2 s from to HYDNUT E 45 46 68 Designation Descriptio...

Page 67: ...Appendix This appendix contains the Declaration of Conformity for hydraulic nuts EC Declaration of Conformity EC Declaration of Conformity for hydraulic nuts HYDNUT E Figure 50 Figure 50 EC Declaratio...

Page 68: ...e 49 9721 91 0 Fax 49 9721 91 3435 Every care has been taken to ensure the correctness of the information contained in this publication but no liability can be accepted for any errors or omissions We...

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Schaeffler FAG HYDNUT-E Series, User Manual

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