Festo 548076 Page 64 Repair Instructions Download

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Festo 7DHTGd_en

9. Lever the O-ring out of the inside of the hole in the plate.

10. Lever the two rails of the guide segments out of the housing.

If only plate components have to be repaired, you can continue with the assembly in

Chapter 4.5.6 on page 82

4.4.5

Removing the gear racks

The installation position of several components depends on the configuration of the rotary indexing table and can

differ from the images shown here.
The position of the gear racks, indexing pins, blanking plugs and shock absorber must always be marked for
subsequent assembly.

1. Loosen the socket head screws in the impact plate on the front of the hous-

ing (do not unscrew and remove).

2. Unscrew hollow screw in the impact plate.

Note

The impact plate is subjected to spring tensioning on one side and can tilt
when the socket head screws are unscrewed.

3. Unscrew the socket head screws in the impact plate.

Type

Number of socket head screws

DHTG-65-…-A

DHTG-90-…-A

DHTG-140-…-A

DHTG-220-…-A

Summary of Contents for 548076

Page 1: ...Repair instructions en Rotary indexing table DHTG A DHTG A P4 P4E4 P4L12 7DHTGd_en...

Page 2: ...o com Reproduction distribution or sale of this document or communication of its contents to others without express authorisation is prohibited Offenders will be held liable for damages All rights res...

Page 3: ...he deviations 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 the...

Page 4: ...als DHTG 90 A Series up to F7 up to July 2015 19 3 4 Components overview DHTG 90 A series from F8 from August 2015 20 3 4 1 Bill of materials DHTG 90 A series from F8 from August 2015 21 3 5 Component...

Page 5: ...eumatic and electrical module 57 4 4 Dismantling the rotary indexing table 58 4 4 1 Removing the plate 58 4 4 2 Dismantling the plate DHTG 65 and DHTG 90 59 4 4 3 Dismantling the plate DHTG 140 60 4 4...

Page 6: ...e on the Festo website www festo com sp Assembly instructions Energy throughfeed DHTG P4 and rotary throughfeed DHAS SCR12 H6 Contain information on the assembly dismantling of the respective product...

Page 7: ...ions are carried out Loosened parts can make unexpected movements or fall off Secure parts against accidental movements or move them into a safe end position Caution Lifting large loads can lead to pe...

Page 8: ...est values which products comply with and fulfil can be found in the Technical data sections of the enclosed documentation 2 General product description 2 1 Functional description The DHTG A is a rota...

Page 9: ...DHTG 4 Push in fitting input 5 Energy throughfeed pneumatic module 6 Rotary distributor 7 Push in fitting output 2 2 2 DHTG P4E4 Energy throughfeed pneumatic 4 channels and electrical 4 signals 4 2 5...

Page 10: ...al 12 cables 4 2 5 3 1 aJ 8 9 6 7 1 End cap assembly 2 Rotary distributor 3 Flat head screw 4 Rotary indexing table DHTG 5 Push in fitting input 6 Energy throughfeed electrical module 7 Flanged plug i...

Page 11: ...079 DHTG 65 12 A 548080 DHTG 65 24 A 548081 DHTG 90 2 A 548082 DHTG 90 3 A 555449 DHTG 90 4 A 548083 DHTG 90 6 A 548084 DHTG 90 8 A 548085 DHTG 90 12 A 548086 DHTG 90 24 A 548087 DHTG 140 3 A 555450 D...

Page 12: ...the rotary indexing table The order code describes the features of the rotary indexing table separated by a dash Rotary indexing table product labelling Example DHTG 220 4 A 548093 H7 p max 8bar 1 3...

Page 13: ...8 548089 548090 548091 548092 DHTG 220 A 555451 Series up to F7 up to July 2015 Chapter 3 7 on page 26 Series from F8 from August 2015 Chapter 3 8 on page 28 Series up to F7 up to July 2015 Chapter 3...

Page 14: ...14 92 Festo 7DHTGd_en 3 1 Components overview DHTG 65 A series up to F7 up to July 2015...

Page 15: ...Cover 27 Retaining ring DIN 471 18 1 2 28 Flange 29 Cylindrical dowel pin DIN 6325 4M6 12 30 Socket head screw DIN 7984 M4 8 8 8 31 Countersunk screw DIN 7991 M5 16 8 8 32 Plate module 33 Sealing ring...

Page 16: ...16 92 Festo 7DHTGd_en 3 2 Components overview DHTG 65 A series from F8 from August 2015...

Page 17: ...l pin DIN 6325 4M6 12 31 Socket head screw DIN 7984 M4 8 8 8 32 Countersunk screw DIN 7991 M5 16 8 8 33 Plate module 34 Sealing ring OK M3 35 Plug screw B M3 S9 36 Blanking plug B M3 S9 37 Piston seal...

Page 18: ...18 92 Festo 7DHTGd_en 3 3 Components overview DHTG 90 A series up to F7 up to July 2015...

Page 19: ...Retaining ring DIN 471 24 1 2 28 Flange 29 Cylindrical dowel pin DIN 6325 4M6 12 30 Socket head screw DIN 912 M4 8 8 8 31 Countersunk screw DIN 7991 M5 16 8 8 32 Plate module 33 Sealing ring OK M3 34...

Page 20: ...20 92 Festo 7DHTGd_en 3 4 Components overview DHTG 90 A series from F8 from August 2015...

Page 21: ...6325 4M6 12 31 Socket head screw DIN 912 M4 8 8 8 32 Countersunk screw DIN 7991 M5 16 8 8 33 Plate module 34 Sealing ring OK M3 35 Plug screw B M3 S9 36 Blanking plug B M3 S9 OK 37 Piston seal No Desi...

Page 22: ...22 92 Festo 7DHTGd_en 3 5 Components overview DHTG 140 A series up to F7 up to July 2015...

Page 23: ...l sheet 30 Cover 31 Retaining ring DIN 471 40 1 75 32 Flange 33 Cylindrical dowel pin DIN 6325 4M6 12 34 Socket head screw DIN 912 M5 10 10 9 35 Countersunk screw DIN 7991 M6 16 8 8 36 Plate module 37...

Page 24: ...24 92 Festo 7DHTGd_en 3 6 Components overview DHTG 140 A series from F8 from August 2015...

Page 25: ...ndrical dowel pin DIN 6325 4M6 12 35 Socket head screw DIN 912 M5 10 10 9 36 Countersunk screw DIN 7991 M6 16 8 8 37 Plate module No Designation type 38 Sealing ring OK M3 39 Plug screw B M3 S9 40 Bla...

Page 26: ...26 92 Festo 7DHTGd_en 3 7 Components overview DHTG 220 A series up to F7 up to July 2015...

Page 27: ...sheet 30 Cover 31 Retaining ring DIN 471 82 2 5 32 Flange 33 Cylindrical dowel pin DIN 6325 6M6 12 34 Socket head screw DIN 912 M6 12 10 9 35 Countersunk screw DIN 7991 M6 20 8 8 36 Plate module 37 S...

Page 28: ...28 92 Festo 7DHTGd_en 3 8 Components overview DHTG 220 A series from F8 from August 2015...

Page 29: ...rical dowel pin DIN 6325 6M6 12 35 Socket head screw DIN 912 M6 12 10 9 36 Countersunk screw DIN 7991 M6 20 8 8 37 Plate module No Designation type 38 Sealing ring OK M3 39 Plug screw B M3 S9 40 Blank...

Page 30: ...30 92 Festo 7DHTGd_en 3 9 Components overview DHTG 65 A P4...

Page 31: ...32 Lock bolt 33 Bolt 34 Piston seal 35 Countersunk screw DIN 7991 M5 16 8 8 36 Plate module 37 Sealing ring OK M3 No Designation type 38 Plug screw B M S9 39 Blanking plug B M3 S9 OK 40 Piston seal 41...

Page 32: ...32 92 Festo 7DHTGd_en 3 10 Components overview DHTG 65 A P4E4...

Page 33: ...te module 31 Sealing ring OK M3 32 Plug screw B M3 S9 33 Blanking plug B M3 S9 OK 34 O ring 24 8 1 5 35 O ring 3 1 5 36 Housing 37 Shock absorber YSRD 8 8 C No Designation type 38 Retaining ring DIN 4...

Page 34: ...34 92 Festo 7DHTGd_en 3 11 Components overview DHTG 65 A P4L12...

Page 35: ...1 M5 16 8 8 30 Plate module 31 Sealing ring OK M3 32 Plug screw B M3 S9 33 Blanking plug B M3 S9 OK 34 O ring 24 8 1 5 35 O ring 3 1 5 36 Housing 37 Shock absorber YSRD 8 8 C No Designation type 38 Re...

Page 36: ...36 92 Festo 7DHTGd_en 3 12 Components overview DHTG 90 A P4...

Page 37: ...olt 34 Piston seal 35 Countersunk screw DIN 7991 M5 16 8 8 36 Plate module 37 Sealing ring OK M3 No Designation type 38 Plug screw B M3 S9 39 Blanking plug B M3 S9 OK 40 Piston seal 41 Gear rack 42 O...

Page 38: ...38 92 Festo 7DHTGd_en 3 13 Components overview DHTG 90 A P4E4...

Page 39: ...Plug screw B M3 S9 43 Blanking plug B M3 S9 OK 44 Piston seal 45 Gear rack 46 O ring 28 1 5 47 O ring 3 1 5 48 O ring 5 1 5 49 Housing 50 Shock absorber YSRD 8 8 C 51 Retaining ring DIN 472 12 1 52 O...

Page 40: ...40 92 Festo 7DHTGd_en 3 14 Components overview DHTG 90 A P4L12...

Page 41: ...g ring OK M3 42 Plug screw B M3 S9 43 Blanking plug B M3 S9 OK 44 Piston seal 45 Gear rack 46 O ring 28 1 5 47 O ring 3 1 5 48 O ring 5 1 5 49 Housing 50 Shock absorber YSRD 8 8 C 51 Retaining ring DI...

Page 42: ...42 92 Festo 7DHTGd_en 3 15 Components overview DHTG 140 A P4...

Page 43: ...pin No Designation type 38 Compression spring D 001 39 Lock bolt 40 Bolt 41 Piston seal 42 Countersunk screw DIN 7991 M6 16 8 8 43 Plate module 44 Sealing ring OK M3 45 Plug screw B M3 S9 46 Blanking...

Page 44: ...44 92 Festo 7DHTGd_en 3 16 Components overview DHTG 140 A P4E4...

Page 45: ...ew DIN 7991 M6 16 8 8 47 Plate module 48 Sealing ring OK M3 49 Plug screw B M3 S9 50 Blanking plug B M3 S9 OK 51 Piston seal 52 Gear rack 53 O ring 45 2 54 O ring 3 1 5 55 O ring 5 1 5 56 Housing 57 S...

Page 46: ...46 92 Festo 7DHTGd_en 3 17 Components overview DHTG 140 A P4L12...

Page 47: ...Countersunk screw DIN 7991 M6 16 8 8 47 Plate module 48 Sealing ring OK M3 49 Plug screw B M3 S9 50 Blanking plug B M3 S9 OK 51 Piston seal 52 Gear rack 53 O ring 45 2 54 O ring 3 1 5 55 O ring 5 1 5...

Page 48: ...48 92 Festo 7DHTGd_en 3 18 Components overview DHTG 220 A P4...

Page 49: ...ring 2 2 1 37 Stop pin No Designation type 38 Compression spring D 001 39 Lock bolt 40 Bolt 41 Piston seal 42 Countersunk screw DIN 7991 M6 20 8 8 43 Plate module 44 Sealing ring OK M3 45 Plug screw B...

Page 50: ...50 92 Festo 7DHTGd_en 3 19 Components overview DHTG 220 A P4E4...

Page 51: ...Countersunk screw DIN 7991 M6 20 8 8 47 Plate module 48 Sealing ring OK M3 49 Plug screw B M3 S9 50 Blanking plug B M3 S9 OK 51 Piston seal 52 Gear rack 53 O ring 52 2 54 O ring 3 1 5 55 O ring 5 1 5...

Page 52: ...52 92 Festo 7DHTGd_en 3 20 Components overview DHTG 220 A P4L12...

Page 53: ...Piston seal 46 Countersunk screw DIN 7991 M6 20 8 8 47 Plate module 48 Sealing ring OK M3 49 Plug screw B M3 S9 50 Blanking plug B M3 S9 OK 51 Piston seal 52 Gear rack 53 O ring 52 2 54 O ring 3 1 5 5...

Page 54: ...ing later operation In the event of premature failure of the rotary indexing table the conditions of use should be examined more closely The following possibilities should be considered among other th...

Page 55: ...4L12 DHTG A P4 1 Unscrew countersunk screws 4 2 Pull off end cap 3 Remove O ring from holder DHTG A P4E4 and DHTG A P4L12 1 Undo grub screws 2 2 Pull off end cap module 3 Remove O ring from plate 4 Un...

Page 56: ...sits on the bolt in the end face must not become lost on unscrewing the bolts 2 Unscrew bolts 4 3 Unscrew grub screws 2 in holder Note For correct assignment of the air connections P1 P4 when reinstal...

Page 57: ...he pneumatic module of the P4E4 P4L12 versions The pneumatic module with the air pipe module cannot be dismantled from the DHTG 65 A P4E4 and DHTG 65 A P4L12 In the event of a pneumatic module defect...

Page 58: ...it DHTG 65 and DHTG 90 only Mark the position of the clamping ring in relation to the screw hole of the flat head screw on the plate 3 Remove the clamping ring using two pin punches and a hole profile...

Page 59: ...emoval of the plate two M8 screws not included can be screwed into the thread of the plate as gripping aids 4 4 2 Dismantling the plate DHTG 65 and DHTG 90 1 Release the pretension of the screw To do...

Page 60: ...ou can continue with the assembly in Chapter 4 5 4 on page 80 4 4 3 Dismantling the plate DHTG 140 1 Release the pretension of the screw To do this use a pin punch and a ham mer to tap the screw head...

Page 61: ...dex plate 4 Lift up the index plate without tilting it and remove it from the plate 5 Remove the ring gear from the plate 6 Remove the sleeves and compression springs from the plate Note When pulling...

Page 62: ...antling the plate DHTG 220 1 Release the pretension of the screw To do this use a pin punch and a ham mer to tap the screw head 2 Undo the countersunk screws in the index plate and unscrew uniformly N...

Page 63: ...late 5 Remove the ring gear from the plate 6 Remove the sleeves and compression springs from the plate When pulling out the sleeves ensure that you do not lose the compression springs 7 Remove the O r...

Page 64: ...g table and can differ from the images shown here The position of the gear racks indexing pins blanking plugs and shock absorber must always be marked for subsequent assembly 1 Loosen the socket head...

Page 65: ...sion spring in the rear is not lost 4 Remove the impact plate from the housing 5 Pull compression spring out of the impact plate 6 Undo both grub screws in the impact plate 7 Unscrew both stop screws...

Page 66: ...shock absorber 10 Pull the shock absorber out of the gear rack 11 Pull the indexing pin out of the housing 12 Remove the O rings from the housing 13 Remove the O ring from the impact plate DHTG 65 Th...

Page 67: ...ate at the rear of the housing Type Number of countersunk screws DHTG 65 A 3 DHTG 90 A 5 DHTG 140 A 5 DHTG 220 A 5 15 Remove the stop plate 16 Unscrew the blanking plugs in the stop plate 17 Remove th...

Page 68: ...rside of the housing 20 Place the housing on two supports so that there is a clearance of at least 15 mm underneath for driving out the flange min 15 mm 21 Carefully drive the flange downwards using a...

Page 69: ...the pinion out of the housing 25 Pull both gear racks out of the housing 26 Lever the piston seal out of both gear racks 4 4 6 Removing the bolts 1 Remove metal sheet from the bolt 2 Dismantle the ret...

Page 70: ...cap off both bolts 2 Unscrew the stop pins on both sides of the bolts Note Maintain clean and tidy surroundings so that small parts are not lost or damaged 3 Carefully pull the springs out of the bol...

Page 71: ...covers 8 Lever out the wiper seal from both bolt guides 4 5 Mounting the rotary indexing table Note Removed sealing rings and retaining rings must be renewed during assembly 4 5 1 Assembling the bolt...

Page 72: ...n both bolts so that the open side is facing the outside of the bolts Note Maintain clean and tidy surroundings so that small parts are not lost or damaged 4 Carefully push the new lock bolts and the...

Page 73: ...Installing the bolts Note When inserting the bolt into the guide the wiper seal can be damaged due to excessive pressure 1 Carefully push the bolts into the guides by rotating them slightly with the...

Page 74: ...TG 90 A 24 mm 15 mm DHTG 140 A 29 mm 18 mm DHTG 220 A 39 mm 24 mm 4 Insert the new retaining rings in the guides and check for correct fit 5 Insert the metal sheet into the slot of the bolts 4 5 3 Ins...

Page 75: ...ased on the notes you made during removal making sure that the surface of the gear rack does not protrude beyond the respective side of the housing DHTG 140 The gear rack which is positioned next to t...

Page 76: ...ing when pushing in the flange 11 Push the flange into the pinion 12 Screw the socket head screws through the flange and into the housing and tighten them using the appropriate tightening torque see t...

Page 77: ...the new O rings into their seat in the rear of the housing 16 Screw in the countersunk screws of the stop plate and tighten with the appropriate tightening torque Type Torque Number of countersunk scr...

Page 78: ...during removal 20 Push the shock absorber into the gear rack based on the notes you made during removal 21 Insert the retaining ring in the gear rack and check for correct fit 22 Insert the clamping...

Page 79: ...in its seat in the impact plate 26 Insert the impact plate in the housing Note Tightening the socket head screws on one side can result in tilting of the impact plate It could be damaged 27 Screw the...

Page 80: ...see table Type Torque DHTG 65 A 1 5 Nm DHTG 90 A 1 5 Nm DHTG 140 A 5 5 Nm DHTG 220 A 5 5 Nm 4 5 4 Assembling the plate DHTG 65 and DHTG 90 1 Push the rail of the guide segments onto the plate 2 Press...

Page 81: ...Place the compression springs and the sleeves in the guides in the plate 3 Place the ring gear on the sleeves with the countersinks facing downwards Note If there is a heavy duty spring pin in the pl...

Page 82: ...ghtened on one side 5 Use the countersunk screws to fix the index plate on the plate and tighten the screws with the appropriate torque see table Type Torque DHTG 140 A 4 Nm 4 5 6 Assembling the plate...

Page 83: ...an additional hole Note Note the position of the centring bolts in the plate when placing the index plate 6 Place the index plate on the ring gear with the countersinks for the counter sunk screws fac...

Page 84: ...glued together using superglue Type Length of plate seal DHTG 65 A 230 1 mm DHTG 90 A 320 1 mm DHTG 140 A 478 1 mm DHTG 220 A 729 1 mm Note The sealing lip of the plate seal must face the underside o...

Page 85: ...o this end guide a flat blunt object next to the pulled in area under the seal and use it to move along the seal until the sealing lip completely lies on the housing 8 Tighten the clamping ring using...

Page 86: ...he same side as the air connections of the rotary indexing table 3 Carefully position the housing of the pneumatic module on the rotary index ing table at the same time feed the centring sleeves into...

Page 87: ...DHTG 220 A P4 P4E4 P4L12 2 9 Nm 7 If dismantled screw grub screw into the adapter until it stops All energy throughfeeds 8 Align marked air passage on air pipe for air connection P2 1 as shown in the...

Page 88: ...d air passage P2 of the air pipe must be aligned with the air connection P2 of the rotary distributor The O ring on the bolt in the end face must not fall out of the holder Use shortened hexagon key 1...

Page 89: ...m 20 DHTG A P4L12 1 2 Nm 20 DHTG A P4E4 and DHTG A P4L12 26 Push together the plug in connectors until the latching latches into position Note The cables must not become clamped when laying in the hol...

Page 90: ...ndexing table is otherwise maintenance free due to its lifetime lubrication Regular removal of the lubricant on the surfaces reduces the service life Lubricate the following components after a convers...

Page 91: ...erior retention Internal hexagon socket screwdriver Allen key Shortened internal hexagon socket screwdriver Allen key Torx screwdriver Torque wrench Torque screwdriver Screwdriver set Flat pliers Ring...

Page 92: ...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 no...

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