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Kracht GmbH

Repairs | 10

88046020002

45 / 46

10.2 General

The repairs covers:

1.

Troubleshooting
Determination of damage, pinpointing and localisation of the damage cause.

2.

Elimination of damage
Elimination of the primary causes and replacement or repair of defective components.
The repair is generally made by the manufacturer.

Repairs by manufacturer

Before returning the device, fill in the return notification form. The form can be filled in on-
line and is available as a pdf file download.

 TIPP

Device contains hazardous material

If the device was operated with dangerous liquids, it must be cleaned before the return. If
this should not be possible, the safety data sheet of the hazardous material is to be provided
beforehand.

Repair by equipment builder/operator

If corresponding expertise and sufficient equipment is available, the equipment builder/oper-
ator can also make the repairs. Please consult the manufacturer about this.

a) If required, request spare parts lists and assembly drawings from the manufacturer.

b) Use spare parts approved by the manufacturer only

c) Dispose of packing material and used parts in accordance with the local stipulations.

NOTICE

Warranty

Any warranty will be void if not executed properly.

NOTICE

Protective equipment and notices

After maintenance and/or repair, reattach all protective devices and notices removed in the
process to their original position.

Summary of Contents for VC PULSE Series

Page 1: ...VC PULSE English 03 04 01 2021 D 0046020002 Operating Instructions Translation ...

Page 2: ... 4 1 General 13 4 2 Overview nominal sizes 14 4 3 Overview connection sizes 15 4 4 Flow resistance Δp 17 4 4 1 Ball bearings 17 4 4 2 Plain bearings 20 4 5 Operating pressure 22 4 6 Permissible temperature range 23 4 7 Material data 24 4 8 Weight 25 4 9 Dimensions 26 5 Transport and storage 27 5 1 General 27 5 2 Storage 27 5 3 Storage conditions 28 6 Installation 29 6 1 Important notes about explo...

Page 3: ... table 41 9 4 1 Maintenance table 41 9 4 2 Inspection Discharge flow 42 9 4 3 Inspection Operating pressure 42 9 4 4 Inspection Media temperature 42 9 4 5 Inspection Condition of operating fluid 42 9 4 6 Audiometric monitoring Unusual noise 42 9 4 7 Cleaning 42 9 4 8 Visual inspection Leakages 42 9 4 9 Visual inspection Measuring unit status 42 9 4 10 Visual inspection Condition of housing parts 4...

Page 4: ...vice is manufactured in different versions Information about the version concerned in the individual case can be found on the device s type plate If you have any questions about these operating instructions please contact the manufac turer 1 2 Manufacturer address KRACHT GmbH Gewerbestraße 20 DE 58791 Werdohl Tel 49 2392 935 0 Fax 49 2392 935 209 Email info kracht eu Web www kracht eu 1 3 Applicab...

Page 5: ...h would lead to death or severe bodily injury if not avoided CAUTION Identification of a low risk hazard which could lead to minor or medium bodily injury if not avoided ATTENTION Flagging of notices to prevent property damage NOTICE Identification of basic safety instructions Non compliance can lead to hazards for people and the device TIPP Flagging of special user tips and other especially usefu...

Page 6: ...industrial atmospheres If there are any aggressive substances in the air always consult the manufacturer 5 The product may only be operated in compliance with these operating instructions and the applicable documents Deviating operating conditions require the express approval of the manufacturer 6 Use of the product for purposes other than those for which it is intended invalidates any warranty 2 ...

Page 7: ...luids Danger to life when handling hazardous fluids a Comply with the safety data sheets and regulations on handling the hazardous fluids b Collect and dispose of hazardous fluids so that no hazard is created for persons or the environment DANGER Rotating parts Danger of death due to body parts hair or clothing getting trapped or entangled a Before all work ensure that existing drives are voltage ...

Page 8: ...ING Failure of pressure bearing parts due to overload Risk of injury from flying parts Risk of injury due to fluid spurting out a Use only connections and lines approved for the expected pressure range b Securely prevent the permissible pressures from being exceeded e g by using pressure relief valves or bursting discs c Pipelines must be designed in such a way that no tension e g caused by change...

Page 9: ...sors installed in the cover There is a pressure resistant amagnetic division between the sensor space and meas uring chamber During the rotation of the measuring unit by one tooth pitch a signal occurs per sensor that corresponds to the so called geometric tooth volume of Vgz A value that is stated in tech nical documents as the nominal volume to specify the unit size The two channel scanning faci...

Page 10: ...3 Device description Kracht GmbH 10 46 88046020002 3 2 Basic design 1 Cover 6 Housing 2 Magnet 7 Gears 3 A magnetic divider 8 Bearing journal 4 Magnetic rotary encoder 9 Bearing 5 O ring ...

Page 11: ...Stainless steel Gears Stainless steel 4 Housing Aluminium Gears Stainless steel Nominal size 0 2 5 Seal type F FKM K FFKM E EPDM Q FVMQ P FEP 6 Surface 1 Standard painted 3 Without 2 Paint Skydrol resistant 7 Type of connection P Plate structure R Pipe connection 8 Sensor system 2 2 Sensors 4 2 Sensors protected against vibra tion and condensation 1 1 Sensor 5 Encoder 3 Without Sensor system 9 Ver...

Page 12: ... m Cable 11 Electrical connection H Hirschmann plug Standard E Aluminium terminal box M12x1 ext electronics decoupeable M Hirschmann plug M12x1 4pole V Without K Aluminium terminal box M12x1 4pole 512 Encoder 512 Imp U M12x1 4pole C Aluminium terminal box Cannon plug 2500 Encoder 2500 Imp U M12x1 4pole ...

Page 13: ...sure peaks Permissible pressure loss Δpmax 16 bar 40 bar depending on the product Fluid temperature ϑm min Permissible temperature range 23 ϑm max Ambient temperature ϑu min ϑu max Material Material data 24 Permissible size of foreign particles in the medium General 14 Linearized measuring accuracy Permissible meda Lubricating and poorly lubricating fluids in the frame of the specified operating p...

Page 14: ...ize Measuring range l min Bearing Ball bearing Ball bearing increased clearance Hybrid ball bearing Carbide plain bearing Bronze plain bearings 0 025 0 008 2 0 008 2 0 02 2 1 0 04 0 02 4 0 02 4 0 1 0 04 8 0 04 8 0 04 8 0 2 0 16 16 0 16 16 0 16 16 0 16 16 0 4 0 2 40 0 2 30 1 0 4 80 0 4 80 0 4 80 0 3 60 0 6 40 3 0 6 160 0 6 160 0 6 100 5 2 1 250 1 250 1 160 1 2 80 12 2 600 16 3 700 1 Linearized meas...

Page 15: ...nnection plate Without Con nection plate 0 025 G1 8 MVC R B G3 8 See Technical data sheets MVC R C G1 2 0 04 G1 4 MVC R B G3 8 MVC R C G1 2 0 1 G 3 8 MVC R B G3 8 MVC R C G1 2 0 2 G 3 8 MVC R B G3 8 MVC R C G1 2 0 4 G 1 2 MVC R C G1 2 MVC R D G3 4 1 G 1 2 MVC R C G1 2 MVC R D G3 4 MVC R E G1 3 G 1 MVC R E G1 MVC R G G1 1 2 MVC V E SAE 1 6000 psi 5 G 1 MVC R E G1 MVC R G ...

Page 16: ...tion 1 R Pipe connec tion P Plate structure With Connection plate Without Con nection plate G 1 1 2 MVC V E SAE 1 6000 psi MVC V F SAE 1 1 4 6000 psi 224 SAE 1 3000 psi 12 MVC V G SAE 1 1 2 6000 psi 16 MVC V G SAE 1 1 2 6000 psi 1 Pipe thread ISO 228 1 Flange connection ISO 6162 1 SAE J518 ...

Page 17: ...Kracht GmbH Technical data 4 88046020002 17 46 4 4 Flow resistance Δp 4 4 1 Ball bearings VC 0 025 VC 0 04 VC 0 1 ...

Page 18: ...4 Technical data Kracht GmbH 18 46 88046020002 VC 0 2 VC 0 4 VC 1 ...

Page 19: ...Kracht GmbH Technical data 4 88046020002 19 46 VC 3 VC 5 VC 12 VC 16 ...

Page 20: ...4 Technical data Kracht GmbH 20 46 88046020002 4 4 2 Plain bearings VC 0 025 VC 0 1 ...

Page 21: ...Kracht GmbH Technical data 4 88046020002 21 46 VC 0 2 VC 0 4 VC 1 ...

Page 22: ...8046020002 VC 3 VC 5 4 5 Operating pressure Nominal size Special number Maximum allowable pressure pmax bar Sound pressure level 1 LpA dBA pmax bar 0 025 480 60 0 04 0 1 0 2 0 4 70 1 3 350 5 72 224 240 12 480 80 16 1 v 34 mm s p 5 15 bar ...

Page 23: ...gs Ball bearing 60 220 Ball bearing increased clear ance Hybrid ball bearing Housing material Ductil cast iron 40 220 Stainless steel 60 Aluminium 15 80 Electronics Standard 40 120 without preamplifier IO Link 80 High temperature 150 High temperature PLUS 220 Sealing material Ambient temperature ϑu min C ϑu max C FKM 15 80 150 detached electronics EPDM 30 FFKM 15 FEP with FKM core till 2019 FEP wi...

Page 24: ... core till 2019 FEP with silic one core from 2020 FVMQ EN GJS 400 15 GGG 40 Stainless steel 1 4404 Case hardened steel 1 7139 Stainless steel 1 4462 Ball bearing Anti friction bearing steel Stainless steel Plain bear ings G Cu Sn 7 Zn Pb HM 90 WC 10 Ni Hybrid ball bearing Anti friction bearing steel Ceramic spheres 0 04 0 1 0 2 0 4 1 3 5 12 EN GJS 600 GGG 60 16 EN GJS 600 GGG 60 ...

Page 25: ...ection plate kg Pipe connection Plate structure 0 04 EN GJS 400 15 GGG 40 2 0 1 6 MVC B 04 1 8 MVC B 05 1 7 MVC C 05 0 2 EN GJS 400 15 GGG 40 2 0 1 Stainless steel 7 0 EN GJS 400 15 GGG 40 5 2 Stainless steel 7 0 EN GJS 400 15 GGG 40 5 2 2 7 MVC C 04 2 9 MVC C 05 3 2 MVC C 11 3 5 MVC D 11 4 0 MVC D 05 4 9 MVC E 05 ...

Page 26: ...4 Technical data Kracht GmbH 26 46 88046020002 4 9 Dimensions ...

Page 27: ...issible ambient temperature ϑU elastomer seals lose their elasticity and mech anical loading capacity since the glass transition temperature is fallen below This procedure is reversible A force action on the device is to be avoided in case of storage below the per missible ambient temperature ϑU Devices with EPDM seals are not mineral oil resistant and are not tested for their function There is no...

Page 28: ...temperature 5 C 25 C b Relative air humidity 70 c Protect elastomer parts from light especially direct sunlight d Protect elastomer parts from oxygen and ozone e Comply with maximum storage times of elastomeric parts ð 5 Jahre AU Polyurethan Kautschuk ð 7 Jahre NBR HNBR CR ð 10 Years EPM EPDM FEP PFTE FEPM FKM FFKM VMQ FVMQ ...

Page 29: ...s Risk of fatal electric shock a Adhere to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and media WARNING Failure of pressure bearing parts due to overl...

Page 30: ...ol c Compare the environmental and ambient conditions at the place of use with the per missible conditions ð Expose the product only to low vibrations see IEC 60034 14 ð Ensure sufficient accessibility for maintenance and repair 6 2 2 Plate connection CAUTION Hot surfaces Burn injury to skin if touched a Maßnahmen gegen unbeabsichtigtes Berühren von heißen Oberflächen 60 C treffen ATTENTION Dirt o...

Page 31: ...depth of the fastening screws 1 Fastening screws Tightening torques Fastening screws Nominal size 0 025 0 2 0 4 1 3 5 12 16 Screw size M6 M8 M12 M20 Strength class 8 8 10 9 12 9 10 9 12 9 10 9 12 9 8 8 10 9 12 9 Tightening torques 10 Nm 14 Nm 35 Nm 120 Nm 400 Nm External manufacturer connection plate valve block NOTICE Use only connection plates or valve blocks from external manufacturers with spe...

Page 32: ...eed to be removed from the hydraulic system for this purpose NOTICE No current is allowed to flow through the unit a Loosen the nut by hand b Align plug c Tighten nut hand tight 6 2 4 2 Replacement of the encoder The encoder can be replaced at any time by another encoder purchased from the manufac turer This is used for example to change the resolution or to detect an electronic defect The VC does...

Page 33: ... symmetrical output signal Rectangular Pulse duty factor Channel 1 1 15 Impuls offset between the two channels 90 30 30 mA Stand ard 45 mA max imum 150 mA Frequency Overview nominal sizes Protection class IP 65 DIN EN 60529 Signal output Push Pull TIPP Shielded cable LIYCY C grey 4 x 0 25 mm ATTENTION Damage by overvoltage Excessive voltage can cause damage and dysfunction to the product a Use the...

Page 34: ...t surfaces Burns of the skin on contact a Wear protective gloves at temperatures 48 C 7 2 Preparation a Before starting the product make sure that a sufficient quantity of the service fluid is ex tant to avoid dry running This must be taken into account especially with large line volumes b Check all fastening screws on the product c Fill the unit with media 7 3 PIN assignment Circular plug connect...

Page 35: ...e is achieved g Check the operating data h Document the operating data of the initial start up for later comparison i Check the level of the operating medium in the system j Check the device for leaks k Check all threaded connections for leaks and retighten if necessary During operation the two LED displays in the equipment plug flash as long as there is a con tinual flow of fluid through the meas...

Page 36: ...re to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and media CAUTION Hot surfaces Burns of the skin on contact a At temperatures 48 C the product must b...

Page 37: ...azard arises for persons or environment d Dismantle the device ð Pull the plug off the housing ð Plate structure Release the unit from the connection plate ð Pipe connection Loosen the pipe connections from the unit and if applicable take the unit off the holding fixture e Clean the device f Close the device connections and lines to prevent dirt penetration NOTICE The concrete procedure for cleani...

Page 38: ...starting during all work DANGER Exposed electrical components Risk of fatal electric shock a Adhere to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and ...

Page 39: ...f required request spare parts lists and assembly drawings from the manufacturer Document the type and extent of the maintenance work Dispose of packing material and used parts in accordance with the local stipulations NOTICE Protective equipment and notices After maintenance and or repair reattach all protective devices and notices removed in the process to their original position 9 2 1 Cleaning ...

Page 40: ...ndations A mandatory maintenance plan must be drawn up by the installer operating company TIPP In the course of preventive maintenance it is advisable to replace wearing parts before the wear limit is reached With the appropriate expertise and sufficient equipment the repair can also be carried out by the installer operating company If necessary request spare parts lists and assembly drawings from...

Page 41: ...of operating fluid 2 9 4 6 Audiometric monitoring Unusual noise 1 9 4 7 Cleaning 1 9 4 8 Visual inspection Leakages 1 9 4 2 Inspection Discharge flow 2 9 4 3 Inspection Operating pressure 2 9 4 4 Inspection Media temper ature 2 9 4 5 Inspection Condition of operating fluid 2 9 4 9 Visual inspection Measur ing unit status 3 9 4 10 Visual inspection Condi tion of housing parts 3 9 4 11 Visual inspec...

Page 42: ...emperature is too high or too low check the product components Comply with the product specific data sheets operating instructions 9 4 5 Inspection Condition of operating fluid Pay attention to colour dark colouring odour and milky turbidity Replace operating fluid if necessary 9 4 6 Audiometric monitoring Unusual noise In this case attention must be paid to increased noise or uneven operation pum...

Page 43: ...st be paid to the housing parts of the product 9 4 11 Visual inspection Bearing status In this case attention must be paid to the bearing of the product Removal Cleaning Desposits in the measuring device 9 4 12 Replace Other seals Removal Cleaning Desposits in the measuring device 9 4 13 Cleaning Desposits in the measuring device Cleaning Desposits in the measuring device ...

Page 44: ...ty regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and media WARNING Failure of pressure bearing parts due to overload Risk of injury from flying parts Risk of injury due to ...

Page 45: ...aned before the return If this should not be possible the safety data sheet of the hazardous material is to be provided beforehand Repair by equipment builder operator If corresponding expertise and sufficient equipment is available the equipment builder oper ator can also make the repairs Please consult the manufacturer about this a If required request spare parts lists and assembly drawings from...

Page 46: ...ce the cable or plug if neces sary An LED display does not illuminate Wire break Repairs by manufacturer Soldering point defective Sensor defective No LED display illumin ates Power failure Check the supply cable Check the fuses Measuring unit is blocked Put the device out of operation immediately Repairs by manufacturer Seal failure Leakage O Ring in the device is defective Repairs by manufacture...

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