Novag novaG-2K Скачать руководство пользователя страница 9

novaG 

– 2K 

 

Service Manual 

 

9/23 

Issue 1.6  

Ref. NR-00026-ENG 

http://www.novag.eu/

 

 

CAUTION!

  Use  suitable  protection  and  follow  the  recommendations  in  the  safety 

information provided by product suppliers when installing or working with the unit. 

Follow  the  recommended  procedure  in  the  indicated  order  to  install 
the unit: 

 

a)  Fill  the  Isocyanate  pump  lubricating  cup  with  DOTP     

plasticizer. 

b)  Connect  the  pressure  hose  of  each  product  to  the  outlet  of 

the respective pumps (the Isocyanate hose to the Isocyanate 
pump and the Polyol hose to the Polyol pump). 

 

NOTE:

 The product hoses have been identified with red (Isocyanate) and blue (Polyol), 

enabling  them  to  be  rapidly  distinguished.  To  avoid  errors  in  connecting  the  coupling 
connectors  of  the  Isocyanate  and  Polyol  hoses, the  connectors  are  of  different  sizes  to 
make it impossible for connections to be swapped. 

 

 

Figure 2. 

Method of union of the Hoses

 

WARNING!

  To  join  the  hoses  together  or  to  connect  them  to  the  heaters  or  the  gun, 

use  two  spanners  to  hold  the  parts  to  be  joined  (1)  and  a  third  spanner  to  tighten  or 
loosen the connecting nut (2) as shown in the illustrations in  Figure 2. 
The connections 
must be tightened to a torque of 20 Nm. 

The  hoses  receive  vacuum  drying  treatment  and  are  supplied  interconnected  at  the  ends  to 
prevent  them  from  absorbing  moisture.    Do  not  separate  them  until  they  are  going  to  be 
installed in the unit. 

 

INSTALLATION 

Содержание novaG-2K

Страница 1: ...ad all the technical and safety documentation included in this manual carefully Pay special attention to the information to know and understand the operation and the conditions of use of the unit All...

Страница 2: ...se of heating devices pumping equipment dispensers or other parts or accessories with the Product that have not been approved or manufactured by HI TECH Failure to follow the operating instructions an...

Страница 3: ...shes information to alert on a situation that might cause serious injuries if the instructions are not followed CAUTION establishes information that indicates how to avoid damage to the unit or how to...

Страница 4: ...andling of the raw materials and solvents used in the process carefully read the safety information provided by your supplier Deal with the waste caused according to current regulations Disconnect the...

Страница 5: ...imply turn the valve switch reverts into time saving during set up and application Proportioning Pumps Comprises two positive displacement piston pumps driven by a pneumatic motor The system includes...

Страница 6: ...al Active Power ___________________________________________________________ Mechanical Maximum Working Pressure air supply 9 bar _________________________ 200 bar 20 MPa Maximum Production Ratio 1 1 _...

Страница 7: ...novaG 2K Service Manual 7 23 Issue 1 6 Ref NR 00026 ENG http www novag eu Figure 1 General Description novaG 2K GENERAL DESCRIPTION...

Страница 8: ...circulation valve Open Close the recirculation from ISO Pump to external ISO tank 11 Polyol Recirculation valve Open Close the recirculation from POL Pump to external POL tank 12 Retract Valve Sets th...

Страница 9: ...red Isocyanate and blue Polyol enabling them to be rapidly distinguished To avoid errors in connecting the coupling connectors of the Isocyanate and Polyol hoses the connectors are of different sizes...

Страница 10: ...n to the external ISO tank Before using the unit the retained air and the residual oil from the operating tests made in the factory must be eliminated To purge the whole circuit proceed as follows a O...

Страница 11: ...ressure for the decreasing cycle of the proportioning pumps first and then adjust the pressure for the increasing cycle A little pressure imbalance between the increasing and the decreasing cycle of t...

Страница 12: ...ON To avoid possible product leakage and early failure of the pump seals the pressure must not be reduced to zero It is recommended to keep the system with a minimum pressure of 30 bar 400 psi to exte...

Страница 13: ...gather up the products contained inside the machine e Open the manual valves on the coupling block f Turn the RETRATC valve g Turn the air supply valve the proportioning pumps will move h Allow the pr...

Страница 14: ...block to gather up the products contained inside the machine f Open the manual valves on the coupling block and turn the air supply valve the proportioning pumps will move g Allow the products to come...

Страница 15: ...and put the operator at risk To prevent possible bodily harm caused by incorrect handling of the raw materials and solvents used in the process carefully read the safety information provided by your s...

Страница 16: ...ost in a descending direction check the aspiration ball valve lower valve Proceed as follows to check the ball checks a Disconnect the machine from the pneumatic supply and close all supply valves and...

Страница 17: ...nt the products from being maintained at a minimum temperature of 12 C auxiliary heating elements must be used to condition the products as the minimum temperature required for the transfer b The prod...

Страница 18: ...g out any operation of mantinence To avoid damage caused by the impact of pressurized fluids do not open any connection or perform maintenance work on components subject to pressure until the pressure...

Страница 19: ...e of the new components please refer to tables 16 in the Service Manual NR 00025 for p n of the different models and sizes Also inspect the lower and upper ball and the seat assembly looking for wear...

Страница 20: ...of absorption of moisture and the possibility of contamination through the reaction with the solvent used in the cleaning operation To check the product inlet filters proceed as follows a Disconnect t...

Страница 21: ...of Isocyanate that lies on the pump shaft during the pumping operation If the gaskets and the seals are in a good state the plasticizing oil will not have to be changed so frequently To replace the pl...

Страница 22: ...__________________________ 9 Start up procedures___________________________________________ 11 Daily Shutdown ______________________________________________ 12 Cleaning _______________________________...

Страница 23: ...Manual 23 23 Issue 1 6 Ref NR 00026 ENG http www novag eu Figure 1 General Description novaG 2K ___________________________ 7 Figure 2 Method of union of the Hoses ____________________________ 9 LIST...

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