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Festo 7CRDNGb_en

2.2 

Type codes (ascertaining the features of a cylinder)

The precise features of the current cylinder with piston rod can be ascertained with the help of the rating plate on 
the cylinder. The type designation is located directly beneath the Festo logo and describes the cylinder's features 
separated by a hyphen (-).

Example:

CRDNG-80-100-PPV-A-S6

185297     AN08

max. 10 bar / 145 psi

1

4

2
3

1

  Type designation

2

  Serial number

3

  Technical information

4

  Part number

The type designation on this rating plate provides the following information:

CRDNG

 

Cylinder of the type CRDNG

80

 

Piston diameter 80 mm

100

 

Stroke 100 mm

PPV

 

Adjustable end-position cushioning

A

 

Sensing option (magnetic piston)

S6

 

Heat-resistant seals (repair-relevant feature (see chapter 

2.3 "Repair-relevant features"

))

Note

A list and description of all possible equipment features of the cylinder with piston rod can be found in the data sheet. 
It is available on the Festo website (

www.Festo.com

).

2.3 

Repair-relevant features

Some of the features that the cylinder with piston rod can be equipped with require a different repair approach. These are 
referred to as "repair-relevant" features and are listed in the left-hand column in the table below.
If the cylinder to be repaired has one of these repair-relevant features, the appropriate repair description (see right-hand 
column in the table below) must be used.

Note

A cylinder can only have one repair-relevant feature. It can additionally be equipped with one or more other features 
(see middle column).

Cylinder and repair-relevant feature

Other features

Described from page

CRDNG-… without repair-relevant feature

PPV, A, S2

11

CRDNG-…-

S6

 (heat-resistant seals up to max. 120°C)

PPV, A

17

CRDNGS-… without repair-relevant feature

PPV, A

11

CRDNGS-…-

S6

 (heat-resistant seals up to max. 120°C)

PPV, A

17

Example for the cylinder in chapter 

2.2 "Type codes (ascertaining the features of a cylinder)"

Of the features in the sample cylinder, the feature "S6" is relevant to the repair. The description in chapter 

4.4 "Repairing 

the cylinder CRDNG(S)-…-S6"

 on page 

17

 must therefore be used to repair this cylinder with piston rod.

Содержание CRDNG Series

Страница 1: ...Repair instructions en Cylinder with piston rod Standard cylinder to ISO 15552 stainless steel CRDNG CRDNGS 7CRDNGb_en ...

Страница 2: ...oduction distribution or sale of this document or communication of its contents to others without express authorisation is prohibited Offenders will be liable for damages All rights reserved in the event that a patent utility model or design patent is registered All product designations and brand names used are the property of the owners and not explicitly identified as such All technical data are...

Страница 3: ...viations 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...

Страница 4: ...ts 13 4 3 4 Inserting the piston rod into the cylinder barrel 13 4 3 5 Repairing and attaching the bearing and end caps 14 4 4 Repairing the cylinder CRDNG S S6 17 4 4 1 Structure of the bearing cap 17 4 4 2 Removing the bearing and end caps 17 4 4 3 Replacing the piston components 17 4 4 4 Inserting the piston rod into the cylinder barrel 18 4 4 5 Repairing and attaching the bearing and end caps ...

Страница 5: ...website www Festo com Spare parts documentation Contains an overview of the spare and wearing parts as well as information 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 maintenanc...

Страница 6: ...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 the ...

Страница 7: ...w Festo com 2 3 Repair relevant features Some of the features that the cylinder with piston rod can be equipped with require a different repair approach These are referred to as repair relevant features and are listed in the left hand column in the table below If the cylinder to be repaired has one of these repair relevant features the appropriate repair description see right hand column in the ta...

Страница 8: ...tation designations of the cylinder with piston rod as well as the different variants of the bearing cap and seals for repair relevant features Orientation Festo product identification rating plate as reference point O top U underneath R right L left V front H rear Key features S6 Heat resistant seals S2 Through piston rod ...

Страница 9: ...re and wearing parts please use the online spare parts catalogue on the Festo website spareparts festo com 1 14 15 14 15 19 26 27 20 20 21 21 22 22 23 13 24 24 25 25 26 20 20 20 21 21 22 22 26 21 22 23 20 20 33 20 21 22 23 24 24 28 29 30 32 31 16 17 18 34 2 3 4 5 1 3 4 5 6 8 9 10 7 11 6 8 9 10 7 11 6 8 9 10 7 36 6 8 9 10 7 35 12 13 12 19 ...

Страница 10: ...iston rod 17 Tie rod Use screw locking agent 18 Collar nut Use screw locking agent 19 Cushioning boss 20 Lip ring piston seal 21 Piston two piece Not with CRDNG S 125 22 O ring Not with CRDNG S 125 23 Slip ring 24 O ring With CRDNG S 32 40 50 63 80 100 25 Washer Only with CRDNG S 32 26 Ring magnet Not with CRDNG S 125 27 Magnetic strip Only with CRDNG S 125 28 O ring Only with CRDNG S 125 29 Pisto...

Страница 11: ...nly 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 significant damage 4 3 Repairing th...

Страница 12: ...6 7 8 4 5 3 1 Bearing cap 2 O ring 3 Cushioning seal 4 Sleeve 5 O ring 6 Piston rod seal 7 Bearing 8 Adapter 4 3 2 Removing the bearing and end caps Loosen the screws in the bearing cap from the tie rods hold the screws in the second bearing cap in place on cylinders with through piston rod S2 and remove them Remove the bearing and end caps both bearing caps on cylinders with through piston rod S2...

Страница 13: ... order Apply the screw locking agent included in the set of wearing parts to the inside of the threaded coupling the rear part of the piston rod on cylinders with through piston rod S2 and screw it onto the piston rod with the corresponding torque see table Type Torque CRDNG S 32 CRDNG 32 S2 10 Nm CRDNG S 40 CRDNG 40 S2 20 Nm CRDNG S 50 CRDNG 50 S2 30 Nm CRDNG S 63 CRDNG 63 S2 30 Nm CRDNG S 80 CRD...

Страница 14: ...n cylinders with through piston rod S2 Remove the piston rod seal from the bearing cap the front and rear bearing caps on cylinders with through piston rod S2 Remove the cushioning seal from the bearing cap and end cap the rear bearing cap on cylinders with through piston rod S2 Only with CRDNG 125 PPV A S2 Remove the sleeves with the cushioning seals from the bearing caps Remove the O rings behin...

Страница 15: ...urface for bearing cap Thin film2 3 Grease reservoir1 for bearing Fill 2 3 with grease 1 See chapter 5 2 3 Grease reservoir 2 See chapter 5 2 2 Thin grease film 1 2 3 Insert the piston rod seal into the bearing cap in both bearing caps on cylinders with through piston rod S2 using an appropriate thrust piece Note Note the mounting direction individual sealing lips facing out Grease the new O rings...

Страница 16: ...th the piston onto the end cap To protect the bearing and seals place the appropriate mounting sleeve see chapter 7 2 Special tools on the thread of the piston rod to prevent damage Guide the bearing cap both bearing caps on cylinders with through piston rod S2 over the mounting sleeve onto the piston rod as far as the cylinder barrel Screw the screws in the bearing cap onto the tie rods hold the ...

Страница 17: ...line spare parts catalogue on the Festo website spareparts festo com and taken into consideration during the repair Bearing cap CRDNG S S6 1 2 5 4 6 3 1 Bearing cap 2 O ring 3 Cushioning seal 4 Piston rod seal 5 Retaining ring 6 Bearing 4 4 2 Removing the bearing and end caps Loosen the screws in the bearing cap from the tie rods and remove them Remove the bearing and end caps from the cylinder ba...

Страница 18: ...0 Nm 4 4 4 Inserting the piston rod into the cylinder barrel Clean the inner surface of the cylinder barrel as described in chapter 5 1 Cleaning Apply the grease included in the set of wearing parts to the following parts Component Greasing Inner surface of cylinder barrel Thin film1 Surface of piston rod Thin film1 Piston seal lip rings Thin film1 on outside Piston surface between lip rings greas...

Страница 19: ...Remove the O ring from the groove of the bearing cap and end cap Remove the cushioning seal from the bearing cap and end cap Warning Check the plain bearing in the bearing cap for visible damage that might impair its function such as deposits and scoring The entire bearing cap must be replaced if the plain bearing is showing significant damage Only when repairing the adjustable cushioning PPV Note...

Страница 20: ...cap using an appropriate thrust piece Note Note the mounting direction individual sealing lips facing out Compress the retaining ring e g using pliers and place it on the piston rod seal Grease the new O rings and insert them into the grooves in the bearing cap and end cap Apply a thin film of grease to the new cushioning seals on the front side of the sealing surface and insert them into the bear...

Страница 21: ...g instructions enclosed with the cylinder or can be called up on the Festo website www Festo com and commission the repaired cylinder 4 5 Repairing the adjustable end position cushioning PPV Note The end position cushioning PPV cannot be disassembled on cylinders with a piston diameter of 32 mm Components of the end position cushioning PPV 1 Bearing cap 2 Outer threaded insert 3 Egulating screw 4 ...

Страница 22: ...ring 4 from the regulating screw 3 4 3 4 5 2 Assembling the adjustable end position cushioning PPV The adjustable end position cushioning PPV is mounted in the reverse order Grease the new O ring 4 with LUB E1 and insert it into the groove of the regulating screws 3 Grease the new O ring 6 with LUB E1 and insert it into the location hole for the PPV in the bearing cap or end cap Apply screw lockin...

Страница 23: ...aded insert 2 Screw the outer threaded insert 2 into the bearing cap or end cap and make sure that the outer threaded insert 2 is fitting securely Perform a functional test as per the operating instructions enclosed with the cylinder or can be called up on the Festo website www Festo com and commission the repaired cylinder ...

Страница 24: ...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 the assemb...

Страница 25: ...iston rod The mounting sleeve for piston rods for protecting the piston rod seal and the bearing in the bearing cap while the repair is being carried out must be produced by the customer The schematic diagram can be found in the information brochure Accessories equipment and tools 7Accessories_a_en Documents Further information on the special tools and schematic diagrams can be found in the inform...

Страница 26: ...g further developed with regard to hardware and software The hardware status and where applicable the software status of the product can be found on the type plate of the product If the electronic documentation no matter in what form does not directly accompany the product i e if the product is not supplied together with a portable data storage medium floppy disk CD Rom removable disk Festo does n...

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