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WGR 

– Worm Gear Reducer 

Instruction and operating manual

 

© Copyright by BIFFI Italia. All right reserved  

 

MAN 684/Rev 5    Page  

1

 

 

 

 

MAN 684 

 

 

 

WGR - Worm Gear Reducer 

Instruction and Operating Manual

 

 

 

 

 

 

 

 

 

 

19/01/2017 

Added sight glass with optional 

relief version 

Toscani 

Orefici 

Vigliano 

18/04/2016 

Updated applicable regulation 

(chapter 1.7)

 

Ermanni 

Orefici 

Vigliano 

11/06/2012

 

Revised chapter 11 (parts list) 

Ermanni

 

Ghiadoni

 

Vigliano

 

2

 

08/03/2012

 

Revised Pictures

 

Guarnieri

 

Ghiadoni

 

Vigliano

 

1

 

23/05/2010

 

Revised Chapter 7

 

Schiavi

 

Ghiadoni

 

Vigliano

 

0

 

04/12/2007

 

Issue

 

Orefici 

Alfieri

 

Alfieri

 

Rev. 

Date 

Description 

Prepared 

Verified 

Approved 

Summary of Contents for WGR 100

Page 1: ...ss with optional relief version Toscani Orefici Vigliano 4 18 04 2016 Updated applicable regulation chapter 1 7 Ermanni Orefici Vigliano 3 11 06 2012 Revised chapter 11 parts list Ermanni Ghiadoni Vig...

Page 2: ...a All right reserved MAN 684 Rev 5 Page 2 BIFFI ITALIA has taken every care in collecting and verifying the documentation contained in this Instruction and Operating Manual The information herein cont...

Page 3: ...al 7 2 2 Main Parts Description 8 3 TECHNICAL DATA 9 3 1 Application range 9 4 TRANSPORT AND STORAGE 10 4 1 Transport 10 4 2 Checks to be carried out on receipt of the WGR reducer 11 4 3 Storage Proce...

Page 4: ...on 22 10 LUBRICATION 25 10 1 Grease lubrication type gearbox WGR standard type 25 10 2 Oil lubrication type gearbox WGR DW series models 25 10 3 Refilling procedure only for WGR DW series models 26 11...

Page 5: ...ns may be required WGR reducers are produced by BIFFI ITALIA and identified on the proper label by product designation WGR XXXX Important This Manual provides basic information for the setting of WGR...

Page 6: ...ctions provided on the product nameplate and in this Instruction and Operating Manual modification of the product without Biffi s authorisation work done on the product by unqualified or unsuitable pe...

Page 7: ...s acc to 2014 34 EU Directive Gas mists or vapours Zone 0 1G Gas mists or vapours Zone 1 2G Gas mists or vapours Zone 2 3G Dust Zone 20 1D Dust Zone 21 2D Dust Zone 22 3D 2 MACHINE DESCRIPTION 2 1 Gen...

Page 8: ...ll right reserved MAN 684 Rev 5 Page 8 2 2 Main Parts Description Picture 1 Picture 2 Main Reduction Case Epicyclical Reduction Case Mechanical Stoppers Close Position Label Open Position Label Positi...

Page 9: ...our max Quarter turn worm screw gear boxes are suitable to be motorized for applications in standard temperature range from 30 C to 85 C low temperature version are suitable to operate in temperature...

Page 10: ...and in accordance with the local regulation and area classification Warning The lifting studs are suitable for the transportation of the actuator and gear box only NOT for the valve actuator assembly...

Page 11: ...e failure to comply with the recommended procedure will invalidate the warranty The worm gearboxes leave the factory in excellent working conditions and with an excellent finish these conditions are g...

Page 12: ...ange on the nameplate for correct use Installation in ambient with temperature range outside the specified values will invalidate the warranty 5 2 Safety Instructions for installation in Hazardous Are...

Page 13: ...ge and especially all traces of grease If the insert supplied is not machined remove it from the WGR output drive machine it and reassemble it in the WGR output drive Bring the worm gearbox to the rec...

Page 14: ...nual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 14 Thread size Recommended tightening torque Nm M16 160 M20 320 M22 420 M24 550 M27 800 M30 1100 M36 1700 If possible operate the a...

Page 15: ...il it stops then step back a quarter of turn 5 Tighten the nut 1 Open position the same procedure of closed position on the opposite stopper Picture 3 7 2 Oil lubrication type gearbox WGR DW series mo...

Page 16: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 16 Picture 4 1 2 3...

Page 17: ...oxes WGR DW series models visually inspect for oil leakage approximately every year For severe applications or if worm gearbox operation is infrequent perform maintenance checks at shorter intervals 8...

Page 18: ...lease the cylindrical pin 4 Unscrew the screws 5 and remove the upper cover 6 Unscrew the screws 7 and remove the trunk 8 After completing these operations the main reduction and the epicyclical reduc...

Page 19: ...age 19 Picture 6 Picture 7 3 position indicator 6 upper cover 8 trunk 7 screws unscrew to remove the trunk Main Reduction Epicyclical Reduction 9 Flexoid gasket 10 o ring 5 screws unscrew to remove th...

Page 20: ...ge 20 9 2 Epicyclical reduction removal Please refer to the following Picture 8 Remove the trunk 8 in Picture 6 following the instructions of Par 9 1 Remove the pin 1 Remove the operating gear planet...

Page 21: ...removal Please refer to Picture 9 and Picture 10 Remove the epicyclical reduction following the instructions of Par 9 2 Remove the bolts 1 Remove the thrust flange 2 Remove the first thrust ball bear...

Page 22: ...duction and the epicyclical reduction Please refer to Picture 11 and Picture 12 Remove the reductions as explained in Par 9 2 and 9 3 Grease the worm screw and the two thrust ball bearings couple Pict...

Page 23: ...All right reserved MAN 684 Rev 5 Page 23 Picture 11 Picture 12 Important Before reassembling the worm gearbox the flexoid gasket and the o ring please see Para 8 1 must be replaced Ball bearings to b...

Page 24: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 24...

Page 25: ...earboxes To be used with ST109 40 C 85 C series gearboxes 10 2 Oil lubrication type gearbox WGR DW series models The DW series worm gearboxes are shipped with oil type Quaser RIDGR 320 In case of oil...

Page 26: ...reserved MAN 684 Rev 5 Page 26 10 3 Refilling procedure only for WGR DW series models Please refer to the following Picture 13 Remove both the oil plugs 1 with a hex head wrench Refill by pouring the...

Page 27: ...ther information about Biffi valve actuators contact your local distributor sales office or Biffi Italia S r l Localit Caselle San Pietro 29017 FIORENZUOLA D ARDA PIACENZA ITALY Telephone 0039 0523 94...

Page 28: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 28 11 2 WGR100 Parts List...

Page 29: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 29...

Page 30: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 30 11 3 WGR200 Parts List...

Page 31: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 31...

Page 32: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 32 11 4 WGR400 Parts List...

Page 33: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 33...

Page 34: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 34 11 5 WGR800 Parts List...

Page 35: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 35...

Page 36: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 36 11 6 WGR1600 Parts List...

Page 37: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 37...

Page 38: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 38 11 7 WGR3200 Parts List...

Page 39: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 39...

Page 40: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 40 11 8 WGR6300 Parts List...

Page 41: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 41...

Page 42: ...ween the female screw and sight glass it is possible to install a relief valve on sight glass to prevent overpressure The Relief valve item 43 in the following picture typical for all WGR models is in...

Page 43: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 43 DETAIL A DETAIL B...

Page 44: ...1 paraghraph also directly on the indicator plate 12 DISASSEMBLING and DEMOLITION BIFFI gearboxes have en extremely long lifetime but after several years of operation they have to be replaced The des...

Page 45: ...WGR Worm Gear Reducer Instruction and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 45...

Page 46: ...on and operating manual Copyright by BIFFI Italia All right reserved MAN 684 Rev 5 Page 46 BIFFI ITALIA s r l Loc Caselle S Pietro 29017 Fiorenzuola d Arda Piacenza ITALY Tel 0523 944411 Fax 0523 9418...

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