Related Manuals for Festo CRDNG Series
Summary of Contents for Festo CRDNG Series
- Page 1 Cylinder with piston rod Standard cylinder to ISO 15552, stainless steel CRDNG / CRDNGS Repair instructions (en) 7CRDNGb_en...
- Page 2 Imprint Version: 7CRDNGb_en (06.2013) Copyright: ©Festo AG & Co. KG Postfach 73726 Esslingen Germany Editorial team: SC-S Tel.: +49 (0) 711 / 347-0 Fax: +49 (0) 711 / 347-2144 E-mail: service_international@festo.com Internet: http://www.festo.com Reproduction, distribution or sale of this document or communication of its contents to others without express authorisation is prohibited.
- Page 3 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.
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Page 4: Table Of Contents
4.5.1 Disassembling the adjustable end-position cushioning (PPV) 4.5.2 Assembling the adjustable end-position cushioning (PPV) Cleaning and greasing Cleaning Greasing 5.2.1 Extremely thin grease film 5.2.2 Thin grease film 5.2.3 Grease reservoir Maintenance and care Tools Standard tools Special tools Liability 4 / 26 Festo 7CRDNGb_en... -
Page 5: Important Information
Can be found in the online spare due to normal wear. The entire structure, application, installation, parts catalogue on the Festo cylinder must be replaced in the event commissioning, maintenance and website (www.Festo.com). -
Page 6: General Safety Instructions
Repairs must only be carried out in conjunction with these repair instructions and the device-specifi c operating instructions. Note Instead of carrying out the repair yourself, your local Festo sales offi ce 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. -
Page 7: 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 (-). -
Page 8: Orientation Designations And Bearing Cap Variants
This diagram provides an overview of the orientation 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 identifi cation (rating plate) as reference point O = top... -
Page 9: Component Overview
Component overview This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.festo.com). Festo 7CRDNGb_en 9 / 26... - Page 10 Threaded coupling Not with -S2, use screw locking agent Piston rod Only with CRDNG-…-S2 Cylinder barrel Collar nut Only with CRDNG-…-S2, use screw locking agent End cap Not with CRDNG-…-S2 End cap Only with CRDNGS 10 / 26 Festo 7CRDNGb_en...
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Page 11: Repair Steps
The description in this chapter can be used to repair cylinders of the type CRDNG(S)-… with the following features: CRDNG CRDNGS (with swivel flange) Code Description Code Description Adjustable pneumatic cushioning Adjustable pneumatic cushioning External position sensing External position sensing Through piston rod Festo 7CRDNGb_en 11 / 26... -
Page 12: Structure Of The Bearing Cap
In some series and variants the bearing and end caps may differ from the versions shown here. The precise design of the bearing and end caps must be determined before each repair using the parts lists in the online spare parts catalogue on the Festo website (spareparts.festo.com) and taken into consideration during the repair. Bearing cap CRDNG(S)-…... -
Page 13: Replacing The Piston Components
Thin film Piston seal lip rings Thin film outside Piston surface between lip rings Fill 2/3 with grease (grease reservoir Cushioning boss Thin film outside See chapter 5.2.2 "Thin grease film" See chapter 5.2.3 "Grease reservoir" Festo 7CRDNGb_en 13 / 26... -
Page 14: Repairing And Attaching The Bearing And End Caps
• Only when repairing the adjustable cushioning (PPV) Note Proceed as described in chapter 4.5 "Repairing the adjustable end-position cushioning (PPV)" to repair the adjustable end-position cushioning. 14 / 26 Festo 7CRDNGb_en... - Page 15 Apply a thin fi lm of grease to the new cushioning seals on the front side of the sealing surface and insert them into the bearing cap and end cap (the rear bearing cap on cylinders with through piston rod (S2 )). Festo 7CRDNGb_en 15 / 26...
- Page 16 CRDNG(S)-100 30 Nm CRDNG(S)-125 70 Nm • 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. 16 / 26 Festo 7CRDNGb_en...
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Page 17: Repairing The Cylinder Crdng(S)
In some series and variants the bearing and end caps may differ from the versions shown here. The precise design of the bearing and end caps must be determined before each repair using the parts lists in the online spare parts catalogue on the Festo website (spareparts.festo.com) and taken into consideration during the repair. Bearing cap CRDNG(S)-…-S6... -
Page 18: Inserting The Piston Rod Into The Cylinder Barrel
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. 18 / 26 Festo 7CRDNGb_en... -
Page 19: Repairing And Attaching The Bearing And End Caps
• Clean the seat of the piston rod seal 1. • Clean the seat of the O-ring 2. • Clean the seat of the cushioning seal 3. See chapter 5.1 "Cleaning" Festo 7CRDNGb_en 19 / 26... - Page 20 • Apply the screw locking agent included in the set of wearing parts to the thread of the tie rods. • Lightly screw the tie rods into the end cap. 20 / 26 Festo 7CRDNGb_en...
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Page 21: Repairing The Adjustable End-Position Cushioning (Ppv)
CRDNG(S)-125 70 Nm • 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. 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. -
Page 22: Assembling The Adjustable End-Position Cushioning (Ppv)
Apply screw locking agent (Loctite 243) to the thread of the inner threaded insert 5. • Screw the inner threaded insert 5 into the bearing cap or end cap using an appropriate screwdriver and make sure that the inner threaded insert 5 is fi tting securely. 22 / 26 Festo 7CRDNGb_en... - Page 23 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. Festo 7CRDNGb_en...
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Page 24: Cleaning And Greasing
Festo recommends Loctite 7063 and Loctite 7070 for cleaning. When using other cleaning agents, make sure that they do not corrode the seals of the cylinder with piston rod. In case of doubt, check the resistance of the seals using the data on the Festo website (www.Festo.com). Greasing The various components and seals of the cylinder with piston rod require different levels of greasing depending on a number of factors. -
Page 25: Tools
"Accessories, equipment and tools" (7Accessories_a_en). It can be found in the online spare parts catalogue on the Festo website (http://spareparts.festo.com/xdki/data/SPC/0/PDF_SAFE/Hilfsmittel.pdf Liability The General Terms and Conditions of Sale of Festo AG & Co. KG, which can be viewed on the Festo website (www.Festo.com), apply. Festo 7CRDNGb_en 25 / 26... - Page 26 Festo or third parties have The latter applies particularly to extracts protection rights concerning this electronic of the documents for the user’s own Example: E 2003, Festo AG & Co. KG, documentation which Festo makes available documentation. The guarantee and liability D-73726 Esslingen...