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WITTUR HYDRAULIC DRIVES

Soggetto a modifica senza preavviso!

Subject to change without notice!

Pagina/Page

D842MGB.001

Data/Date

09.2008

Versione/Issue

1

Hydraulic cylinders

Operating instructions

OPERATING INSTRUCTIONS

FOR WITTUR HD

HYDRAULIC CYLINDERS

WITTUR HYDRAULIC DRIVES SRL

Via F.lli Kennedy 22/d I - 24060 Bagnatica (BG) ITALY

Tel. +39 035 689611 Fax +39 035 689671

No part of this publication may be reproduced or
translated, even in part, without the prior written
permission of WITTUR HYDRAULIC DRIVES SRL

D842M

G

B

We reserve the right to modify the specifications,
data and pictures of this manual.

www.omarlift.eu

OMARLIFT SRL

Via F.lli Kennedy 22/D - 24060 Bagnatica (BG) - ITALY

Tel. +39 035 68.96.11 - Fax +39 035 68.96.71

E-mail: info@omarlift.eu

OPERATING INSTRUCTIONS

FOR OMAR LIFT HD

HYDRAULIC CYLINDERS

OMAR LIFT SRL

Pagina/

Page 

D842M2L.

001

Data/

Date

 

09.2008

Versione/

Issue 

1

D8

42

M

2L

Summary of Contents for D842M2L.003

Page 1: ...5 689611 Fax 39 035 689671 No part of this publication may be reproduced or translated even in part without the prior written permission of WITTUR HYDRAULIC DRIVES SRL D842MGB We reserve the right to modify the specifications data and pictures of this manual www omarlift eu OMARLIFT SRL Via F lli Kennedy 22 D 24060 Bagnatica BG ITALY Tel 39 035 68 96 11 Fax 39 035 68 96 71 E mail info omarlift eu ...

Page 2: ......

Page 3: ... Cylinders in three pieces D842MGB 006 2 6 Connection of installations with two cylinders D842MGB 007 3 Maintenance of the hydraulic cylinders D842MGB 008 3 1 Circuit filling and air purging D842MGB 008 3 2 Control of the new cylinder D842MGB 009 3 3 Cylinder losses D842MGB 009 3 4 Seal replacement on a single stage cylinder D842MGB 009 Soggetto a modifica senza preavviso Subject to change without...

Page 4: ...hem Pagina Page D842MGB 003 Data Date 09 2008 Versione Issue 1 Hydraulic cylinders Operating instructions If the cylinder is lifted with clamp trucks it has to be lifted in the middle and the arms have to be positioned at their max distance If the cylinder needs to be rolled make it roll very slowly to avoid bruises on the rod Lay the cylinders preferably horizontally on the truck floor and avoid ...

Page 5: ... small quantity which remains inside acts as a protection against rust for a long period of time If the cylinders remain on the site for a long time it is better to control the state of preservation of the rod cleaning and polishing it if necessary For long periods of storage see point 2 2 in the operating instructions manual for the hydraulic components The oil inlet and therefore the rupture val...

Page 6: ... of telescopic cylinders The cylinder part laying under the middle plate is protected by a special anti corrosive black paint 2 4 Cylinders in two pieces The direct side acting cylinder lays directly on the pit bottom The rod head is equipped with a spherical joint see drawing n 3 which allows the frame to be hooked in a flexible way without movements The spherical joint has to be greased before f...

Page 7: ...at the solvent contacts the OR of the joint Control carefully that there are no bruises neither on the threads nor on the joint If necessary get rid of them Control that the OR of the joint is not damaged and is well greased Lower the upper half of the cylinder and slowly approach the threads without harsh movements Control the alignment and completely screw without using the thread locking liquid...

Page 8: ...nce The rupture valves are equipped with a 1 8 threaded hole The connection has to be done with 1 8 fittings and steel pipes with a 6 mm diameter 1 mm thick or flexible hose See also Operating instructions for rupture valves D840M Fittings 1 8 GAS Balancing connection Rupture valve 1 Rupture valve 2 Three way fitting Lift valve Screwer O Ring Rod Red paint sign Cylinder Hole Pin Draw n 4 Cylinder ...

Page 9: ...nd mixing with air which needs time to get out Operate as follows to get rid of the air completely Unscrew completely and remove the purge screw on the head of the cylinder or cylinders If the rupture valve is not adjusted red label on it its regulation screw has to be unscrewed Disconnect electrically the coil of the high speed electro valve Only in this way a small quantity of oil gets into the ...

Page 10: ...ring its first travel After the first up travel immediately control the whole surface of the rod to verify its state of preservation In particular if the cylinder is long control the central part of the rod whose rectified surface could have been bruised by the vibrations during the transport It would be necessary to smooth patiently with fine abrasive paper to avoid the precocious damaging of the...

Page 11: ...on them in the same way as the old ones The writing PRESSURE SIDE if existing has to be turned toward the cylinder inside Reassemble the bush in case it has been taken out screw again the iron ring with the new seal purge the air and put the installation into action In case of direct acting installation disconnect the rod from the frame While in case of indirect acting ones disconnect the rod from...

Page 12: ... to damage them and position them in the same way as the old ones The writing PRESSURE SIDE if existing has to be turned toward the cylinder inside Reassemble the bush in case it has been taken out screw again the iron ring with the new seal purge the air and put the installation into action In case of direct acting installation disconnect the rod from the frame While in case of indirect acting on...

Page 13: ...not to damage them and position them in the same way as the old ones The writing PRESSURE SIDE if existing has to be turned toward the cylinder inside Reassemble the bush in case it has been taken out screw again the iron ring with the new seal purge the air and put the installation into action In case of direct acting installation disconnect the rod from the frame While in case of indirect acting...

Page 14: ... lli Kennedy 22 d I 24060 Bagnatica BG ITALY Tel 39 035 689611 Fax 39 035 689671 http www wittur hd it E mail info wittur hd it WITTUR HYDRAULIC DRIVES SRL OMAR LIFT Via F lli Kennedy 22 D I 24060 Bagnatica BG ITALY Tel 39 035 68 96 11 Fax 39 035 68 96 71 http www omarlift eu E mail info omarlift eu ...

Page 15: ...5 689611 Fax 39 035 689671 No part of this publication may be reproduced or translated even in part without the prior written permission of WITTUR HYDRAULIC DRIVES SRL D842MIT We reserve the right to modify the specifications data and pictures of this manual www omarlift eu OMARLIFT SRL Via F lli Kennedy 22 D 24060 Bagnatica BG ITALY Tel 39 035 68 96 11 Fax 39 035 68 96 71 E mail info omarlift eu ...

Page 16: ......

Page 17: ...dri in tre pezzi D842MIT 006 2 6 Collegamento di impianti con due cilindri D842MIT 007 3 Manutenzione dei cilindri idraulici D842MIT 008 3 1 Riempimento del circuito e spurgo dell aria D842MIT 008 3 2 Controlli sul cilindro nuovo D842MIT 009 3 3 Perdite del cilindro D842MIT 009 3 4 Sostituzione guarnizioni cilindro ad uno stadio D842MIT 009 Soggetto a modifica senza preavviso Subject to change wit...

Page 18: ...Date 09 2008 Versione Issue 1 Cilindri idraulici Istruzioni operative Se si solleva il cilindro con carrelli elevatori esso deve essere preso a metà e le pale del carrello devono essere posizionate alla massima distanza Se si deve far rotolare il cilindro farlo rotolare molto lentamente per evitare ammaccature allo stelo Distendere preferibilmente il cilindro in orizzontale sul piano di carico del...

Page 19: ...nque quello che resta è sufficiente a garantire una corretta protezione contro la ruggine per un buon periodo di tempo Specie se i cilindri restano a lungo sul cantiere è bene controllare lo stato di conservazione dello stelo ed eventualmente pulire e lucidare Per lunghi periodi di immagazzinamento vedere il punto 2 2 del manuale di istruzioni per componenti idraulici L attacco dell olio e quindi ...

Page 20: ...dro al di sotto della piastra intermedia è protetta con una speciale vernice anticorrosione 2 4 Cilindri in due pezzi Il cilindro diretto laterale è appoggiato direttamente sul fondo della fossa La testa dello stelo è fornita con uno snodo sferico Fig 3 per poter agganciare l arcata in modo flessibile senza trasmettere movimenti Lo snodo sferico deve essere ingrassato prima di fissare la piastra a...

Page 21: ...atamente che non ci siano ammaccature nè nei filetti nè nelle altre zone della giunta Eventualmente eliminarle Controllare che l OR della giunta non sia danneggiato e sia bene ingrassato Abbassare la metà superiore del cilindro ed avvicinare lentamente i filetti senza urti violenti Controllare l allineamento ed avvitare fino in fondo senza mettere il liquido frenafiletti Se notate delle difficoltà...

Page 22: ...ornite con un attacco filettato da 1 8 Il collegamento deve essere fatto con raccordi da 1 8 e tubi in acciaio diametro 6 mm spessore 1 mm o tubo flessibile Vedere anche Istruzioni per l uso della valvola di blocco D840M Raccordi 1 8 GAS Collegamento equilibratura Valvola di blocco 1 Valvola di blocco 2 Raccordo tre vie Valvola ascensore Avvitatore O Ring Stelo Vernice rossa Camicia Foro Spina Fig...

Page 23: ...za mescolarsi con l aria che deve avere il tempo necessario per poter uscire Per poter eliminare bene l aria dal circuito procedere come segue Svitare completamente e togliere la vite di spurgo che si trova sulla testa del cilindro o dei cilindri Se la valvola di blocco non è tarata ha allegato un cartellino rosso controllare che la sua vite di regolazione sia svitata Scollegare elettricamente la ...

Page 24: ...lo stelo alla sua prima corsa Dopo aver fatto la prima corsa in salita controllare subito tutta la superficie dello stelo per verificarne lo stato di conservazione In particolare specie per i cilindri lunghi controllare la parte centrale dello stelo la cui superficie rettificata potrebbe aver riportato alcune ammaccature dovute alle vibrazoni durante il trasporto Occorrerà eventualmente levigare c...

Page 25: ... La scritta PRESSURE SIDE quando esiste deve essere verso l interno del cilindro Rimontare la bussola se è stata estratta riavvitare la ghiera con le nuove guarnizioni fare lo spurgo dell aria e rimettere in funzione l impianto Scollegare lo stelo dall arcata per gli impianti diretti oppure la puleggia per gli impianti indiretti Bloccare la cabina con dei fermi nella posizione più comoda Per gli i...

Page 26: ...t to damage them and position them in the same way as the old ones The writing PRESSURE SIDE if existing has to be turned toward the cylinder inside Reassemble the bush in case it has been taken out screw again the iron ring with the new seal purge the air and put the installation into action In case of direct acting installation disconnect the rod from the frame While in case of indirect acting o...

Page 27: ...not to damage them and position them in the same way as the old ones The writing PRESSURE SIDE if existing has to be turned toward the cylinder inside Reassemble the bush in case it has been taken out screw again the iron ring with the new seal purge the air and put the installation into action In case of direct acting installation disconnect the rod from the frame While in case of indirect acting...

Page 28: ... lli Kennedy 22 d I 24060 Bagnatica BG ITALY Tel 39 035 689611 Fax 39 035 689671 http www wittur hd it E mail info wittur hd it WITTUR HYDRAULIC DRIVES SRL OMAR LIFT Via F lli Kennedy 22 D I 24060 Bagnatica BG ITALY Tel 39 035 68 96 11 Fax 39 035 68 96 71 http www omarlift eu E mail info omarlift eu ...

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