background image

 
NEFF High Speed Screw Jack G1-G3 

 

1

 

Important Information 

 

This chapter contains important information on the safe handling of the product and on this 
operating manual. 

1.1

 

Instructions on Documentation 

 

The following instructions will guide you through the entire documentation. 
We assume no liability for damages resulting from non-compliance with this operating manual. 
Forward this operating manual to the plant operator so that it is available if needed. 

1.2

 

Safekeeping of the Documentation 

 

Keep this operating manual and all other applicable documents safe so that they are 
available if needed. 

1.3

 

Used Symbols 

 
 

 

Information

 

Instructions and information on the operation of the High Speed 
Screw Jacks. 
 

 

 

Attention!

 

Non-compliance may result in material damage and impair the 
operation of the gear unit. 
 

 

 

Warning!

 

Safety instruction: non-compliance may result in serious or fatal 
injuries.

 

 

 

QR Barcode

 

Provides a direct link to the products on our website. 
Compatible with QR barcode scanner apps for all Android, Apple 
and Windows smart phones / tablets.

 

 

1.4

 

Qualified Staff 

 

 

Qualified staff according to this operating manual refers to specialists who are familiar with 
the installation, assembly, commissioning and operation of the High Speed Screw Jacks and the 
hazards involved and who possess the necessary capabilities on the basis of their specialist 
training and knowledge of the applicable standards. 

 
 
 

 

Summary of Contents for G1

Page 1: ...High Speed Screw Jack G1 G3 Model N V R Operating Manuel NEFF High Speed Screw Jacks G1 G3 Version N V R ...

Page 2: ...the High Speed Screw Jacks 4 3 Setup High Speed Screw Jack 5 3 1 Version R rotating spindle 5 3 2 Version N VK lifting spindle 5 4 Assembly 6 4 1 General Assembly Instructions 6 4 2 Assembly guide 7 4 3 Tolerance of position 7 4 4 Mounting Several High Speed Screw Jacks in Parallel 8 4 5 Disassembly the Screw 9 5 Commissioning 10 6 Maintenance 10 6 1 Lubricants and Fill Quantities 11 7 Malfunction...

Page 3: ...d 1 3 Used Symbols Information Instructions and information on the operation of the High Speed Screw Jacks Attention Non compliance may result in material damage and impair the operation of the gear unit Warning Safety instruction non compliance may result in serious or fatal injuries QR Barcode Provides a direct link to the products on our website Compatible with QR barcode scanner apps for all A...

Page 4: ... complies with the EC machinery directive Attention Requirement according to the German accident prevention regulations VBG14 VBG 70 If High Speed Screw Jacks are operated in theatre stages VBG 70 lifting platforms VBG 14 or lifting equipment where there is a danger to persons we generally recommend using a safety nut for fall protection Attention This operating manual must be kept close to the de...

Page 5: ...ned on 4 sides allows for the installation of motors gears or pressure transducers All models are designed to cater for pressure and tensile loads as well as position independent operation Basically 2 different movement principles have to be distinguished Rotating screw TGS trapezoidal screw TGS R rotating screw KGS ball screw KGS R rotating screw Axially moving screw TGS trapezoidal screw TGS N s...

Page 6: ...e bevel gear is seated on a hollow shaft which is attached via a feather key with the spindle 3 2 Version N VK lifting spindle Neff High Speed Screw Jacks Version N VK with lifting spindle are equipped with spiral toothed bevel gear gear oil lubrication and greased spindle For Bevel gear Position RU Bevel gear wheel above from the spindle side By turning the drive shaft with right rotation the bev...

Page 7: ...gle or in parallel to the machine component and tightened during assembly The tolerances of the four assembly sides correspond to the DIN ISO 2768 mH standard Size G1 G2 G3 Bolts min 8 8 M10 M12 M20 Length of engagement 15 16 30 Max torque in Nm 50 80 400 The torques mentioned in the table are only rough and nonbinding guidelines see VDI 2230 Lateral forces have to be absorbed by suitable guiderai...

Page 8: ...ft must be easy and possible to turn evenly over the entire stroke length 5 For trapezoidal spindle Clean and lubricate the spindle over the entire stroke length 6 For ball screws Clean the spindle over the entire stroke length and lubricate the ball nut 7 Check the oil level in the gear box 8 Replace the oil screw plug with the vent valve thereby making sure that the vent valve is freely accessib...

Page 9: ...to the bevel gear shaft of the second High Speed Screw Jack 13 Fasten the High Speed Screw Jack 14 Repeat steps 1 5 with any other gear units Attention Check the sense of rotation of all lifting elements before assembly Attention Use torsionally flexible couplings drive shafts or cardan shafts in order to compensate for any misalignment of the High Speed Screw Jacks Attention Observe the lubricati...

Page 10: ...neck with a sharp screw driver 1 Loosen the threaded screw 3 from the spindle mounting nut 4 Remove the spindle mounting nut 4 with a face spanner Pull the spindle 5 out of the housing Version N V lifting spindle Loosen the spindle mounting Loosen the gard tube from the gear housing Unscrew the spindle out of the gear housing ...

Page 11: ...ng block must be regularly lubricated Move the Screw Jack to the start position carefully disount the square pipe plug and lubricate through the recesses in the anti rotating block Prevent dry running Recommendation for the interval check once a month and if necessary relubricate depending on application Approx 5 operating hours after commissioning Retighten all attachment bolts After approx 50 10...

Page 12: ... Screw Jacks with ball screws Screw NEFF Grease 2 3 Follow the QR Code for Safety data sheet Bevel gear Aral Degol GS220 Safety data sheet www neff gewindetriebe de Fill quantities Type G1 G2 G3 Fill quantities in liter 0 15 0 5 3 In addition to our factory lubricants other equivalent brand lubricants may also be used This only applies if they are compared to the data sheets of the above manufactu...

Page 13: ...ive Consult the technical service Unusually high temperature at the housing Not enough oil Defective gearing or bearing Check and correct oil filling Consult the technical service Grease or oil exists at the shaft seal ring Defective sealing Consult the technical service Oil exists at the shaft seal ring and at the screw Too much oil in the gear Check and correct oli fill level Consult the technic...

Page 14: ...ational authorities on request The technical documentation was created according to annex VII B Person responsible for documentation Andreas Ries QA manager Address of the person responsible for documentation Neff Gewindetriebe GmbH Karl Benz Str 24 71093 Weil im Schönbuch Germany The following harmonized standards have been applied DIN EN ISO 12100 1 Safety of machinery Basic concepts general pri...

Reviews: