Festo DNCB Repair Instructions Download | Manualshive

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Festo 7DNCBa_en

2.4

Mounting directions

This diagram provides an overview of the orientation designations for the cylinder with piston rod.

Orientation:

Festo= product identification (rating

plate) as reference point

O =    top
U =   underneath
R =   right
L =

left

V = front
H = rear

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Summary of Contents for DNCB

Page 1: ...Repair instructions en Cylinder with piston rod Standard cylinder to ISO 15552 DNCB 7DNCBa_en ...

Page 2: ...isation of this document as well as the communication of its contents to others without explicit authorisa tion is prohibited Offenders shall be held liable for payment of damages All rights reserved in particular the right to file patent utility model or registered design applications All product designations and brand names used are the property of the owners and not explicitly identified as suc...

Page 3: ...ia tions into consideration if necessary These repair instructions have been prepared with care Festo AG Co KG does not however accept liability for any errors in these repair instructions or their consequences Likewise no liability is accepted for direct or consequential damage resulting from improper use of the products More detailed information on this can be found in chapter 8 Liability The re...

Page 4: ...ponent overview 9 3 1 DNCB 9 4 Repair steps 10 4 1 Preparation 10 4 2 Visual inspection 10 4 3 Repairing the cylinder DNCB 10 4 3 1 Structure of the bearing cap 10 4 3 2 Removing the bearing and end caps 11 4 3 3 Replacing the piston components 11 4 3 4 Inserting the piston rod into the cylinder barrel 12 4 3 5 Repairing and attaching the bearing and end caps 13 5 Cleaning and greasing 15 5 1 Clea...

Page 5: ...website www festo com Spare parts documentation Contains an overview of the spare and wearing parts as well as infor mation on their installation Can be found in the online spare parts catalogue on the Festo website spareparts festo com Assembly aids Contain an overview of available assembly aids such as lubricating greases screw locking agents maintenance tools etc aids for assembly and maintenan...

Page 6: ...sto sales office offers the option of having the repair carried out by Festo Environment Components and equipment replaced as part of a repair must be disposed of in accordance with the locally valid environmental protection regulations 2 General product description 2 1 Functional description The piston moves in the cylinder barrel when the cylinder chamber is pressurised The piston rod transmits ...

Page 7: ...the Festo website www festo com 2 3 Retrofitting the cylinder with piston rod with other features The cylinder with piston rod of the type DNCB is only available in the standard design It can be retrofitted with a num ber of other features e g dust protection R8 by installing a piston rod seal from the appropriate wearing parts kits Warning All other components of the original DNCB wearing parts k...

Page 8: ...g directions This diagram provides an overview of the orientation designations for the cylinder with piston rod Orientation Festo product identification rating plate as reference point O top U underneath R right L left V front H rear ...

Page 9: ...it 2 Hexagon head screws 3 Piston rod seal 4 Bearing 5 Bearing cap 6 O ring 7 Cushioning seal 8 Holding disc Only with DNCB 32 40 50 63 9 Cylinder barrel 10 Piston rod 11 Cushioning boss 12 Piston washer Only with DNCB 40 50 63 80 100 13 Guiding band Only with DNCB 40 50 63 80 100 14 O ring Only with DNCB 40 50 63 80 100 15 Magnet Only with DNCB 40 50 63 80 100 16 Piston module Only with DNCB 32 1...

Page 10: ...ny pressure present is not suddenly released when the cylinder is opened To prevent damage to sealing rims or guide surfaces do not use pointed or sharp edged assembly aids 4 2 Visual inspection Check the cylinder for visible damage that might impair its function e g warping of the piston rod as well as deposits and scoring The entire cylinder must be replaced if the cylinder barrel is showing sig...

Page 11: ...mage Unscrew the threaded coupling from the piston rod Remove the piston components from the piston rod noting the sequence and alignment Remove any residue of the screw locking agent from the threads of the piston rod and threaded coupling Replace the components with those from the wearing parts kit and reassem ble the piston components on the piston rod in the correct sequence Apply the screw lo...

Page 12: ...5 2 3 Grease reservoir Place the piston flat on the front side of the cylinder barrel and insert the lip ring of the piston into the cylinder barrel by tilting and turning it slightly The sealing lip must not fold back against the inside of the piston Note If necessary use a flat and blunt edged object to insert the lip ring into the cylinder barrel Insert the piston fully into the cylinder barrel...

Page 13: ...ows Area Other cylinders 1 Grease reservoir1 for piston rod Fill 2 3 with grease 2 External surface for bearing cap Thin film2 3 Grease reservoir1 for bearing Fill 2 3 with grease 1 See section 5 2 3 Grease reservoir 2 See section 5 2 2 Thin grease film 1 2 3 Insert the piston rod seal into the bearing cap using the appropriate insertion tool Note Note the mounting direction inscription facing out...

Page 14: ...tained in the wearing parts kit to the screws Fasten the screws through the bearing and end caps into the cylinder barrel Align the bearing and end caps flush with the cylinder barrel Tighten the screws with the appropriate torque see table Type Torque DNCB 32 7 Nm DNCB 40 7 Nm DNCB 50 13 Nm DNCB 63 13 Nm DNCB 80 25 Nm DNCB 100 25 Nm Perform a functional test as per the operating instructions encl...

Page 15: ...e of the cylinder barrel to produce an even lubricant film 5 2 1 Extremely thin grease film A barely continuous film of grease covers the bearing surface The grease can give a sheen to the surface however the colour of the grease must not darken it Recommendation Apply the grease using a cloth or similar dipped in the grease Remove the excess grease from the seal system components e g by drawing t...

Page 16: ...special tools are required to repair and service the cylinder with piston rod Designation Additional information Available Photo Push in sleeve for piston rod seal DNCB 32 On request DNCB 40 DNCB 50 DNCB 53 DNCB 80 DNCB 100 Insertion sleeve for piston rod seal only for cylinders with seals for unlubricated opera tion A3 DNCB 32 DNCB 40 DNCB 50 DNCB 53 DNCB 80 DNCB 100 Mounting sleeve for piston ro...

Page 17: ... 1 Festo products are being continuously developed with regard to hardware and soft ware The hardware status and where appli cable the software status of the product can be found on the name plate of the product If the electronic documentation in whatever form is not supplied with the product i e is not supplied on a portable data storage device floppy disk CD ROM removable disk Festo does not gua...

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