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novaG-A 

 

Manual Service 

 

3/25 

1.2 Issue  

Ref. NR-00016-ENG 

 

 

All of the information provided in this Service Manual has been included in the confidence that it 
is true, although it does not constitute any responsibility or implicit or explicit guarantee. NOVAG 
reserves  the  right  at  any  time  without  forewarning  to  make  all  necessary  improvements  and 
modifications  to  this  Service  Manual  in  order  to  rectify  any  possible  typographical  errors, 
increase  the  information  contained  and  enter  the  changes  made  to  the  characteristics  and 
performances of the gun. 

 

 

This chapter contains important information on safety, handling and use of your 

novaG-A 

gun.

 

 

Before  installing  and  operating  the  gun,  carefully  read  the  technical  and 
safety  documentation  in  this manual.  Special  attention  should  be  paid  to 
the  information  for  knowing  and  understanding  the  handling  and 
conditions of use of the gun. All of the information is aimed at enhancing 
User Safety and avoiding possible faults due to incorrect use of the gun. 

WARNING!

 

establishes  information  for  alerting  you  on  the  situations  which  could 

cause serious injury if the instructions are not followed. 

PRECAUTION!

 

establishes information which indicates how to avoid damage to the 

gun and how to avoid a situation which could cause minor injuries. 

NOTE

 is relevant information on the procedure being carried out. 

Careful  study  of  this  manual  will  help  you  to  become  more  acquainted  with  the  gun  and  the 
procedures. Following the instructions and recommendations here will reduce the potential risk 
of  accidents  in  installing,  using  or  maintaining  the  gun,  and  will  give  you  the  problem-free 
operation  for  a  longer  time,  greater  output  and  the  possibility  of  detecting  and  resolving 
problems quickly and simply.  

Keep this Service Manual for future consultation of useful information at all times. If you lose the 
manual,  ask  for  a  new  copy  from  your  local 

NOVAG

  distributor  or  make  direct  contact  with 

NOVAG SPRAY EQUIPMENT, S. A

WARNING:

 The gun's design and configuration do not allow it to be used in potentially 

explosive atmospheres or to exceed the pressure and temperature limits described in the 
technical specifications of this manual. 

Always use liquids and solvents that are compatible with the unit. In the event of doubt, consult 
the 

NOVAG

 technical service. 

 

SAFETY AND HANDLING 

Summary of Contents for novaG-A Series

Page 1: ...gun carefully read the technical and safety documentation in this manual Special attention should be paid to the information in order to know and understand the handling and conditions of use of the U...

Page 2: ...ons of the Product not authorised by NOVAG or due to the use of accessories heating devices pumping equipment and or dispensers that have not been approved or manufactured by NOVAG d The guarantee app...

Page 3: ...uations which could cause serious injury if the instructions are not followed A PRECAUTION establishes information which indicates how to avoid damage to the gun and how to avoid a situation which cou...

Page 4: ...your supplier to prevent any possible injury caused by incorrect handling of the raw materials and solvents used in the process Deal with the waste caused according to current regulations To prevent s...

Page 5: ...a 3500 psi Required air pressure _________________________ 6 8 Kgf cm2 0 6 0 8 MPa 85 114 psi Maximum production ratio 1 1 ________________________________ 18 Kg min 40 lb min Minimum production ratio...

Page 6: ...precise identification see the Components Manual ref NR 00015 ENG 1 Head Unit 2 Polyol Side Cartridge Unit 3 Isocyanate Side Cartridge Unit 4 Polyol Non Return Cartridge Unit 5 Isocyanate Non Return C...

Page 7: ...he manual valves control the input flow of each product to the chamber and are located on the Coupling Block 2 Connect the air supply pipe to the connector at the rear of the gun 3 Connect the Isocyan...

Page 8: ...rvice Manual 9 Completely open the manual valves of each product by turning them anti clockwise 10 Press the blocking device and turn it anticlockwise to leave it in projection mode or position 11 Per...

Page 9: ...als of the non return cartridges 6 Turn the isocyanate cartridge one turn anticlockwise 7 Turn the polyol cartridge one turn anticlockwise 8 Turn the locknut half a turn anticlockwise 9 Pull lightly o...

Page 10: ...check valve and filter cartridges use a flat screwdriver to lever and remove the assemblies Be careful not to damage the O rings If for any reason it is not possible to remove the cartridges by this...

Page 11: ...be necessary to remove the chamber each day to clean it PRECAUTION To avoid possible contamination by product remains on the gun components do not swap Isocyanate parts with Polyol parts The gun has t...

Page 12: ...e sure that all pressure has been eliminated Use suitable protection when operating maintaining or simply being in the area where the equipment is working This includes but is not limited to the use o...

Page 13: ...upply The gun is a component which works under pressure No connection must be opened or maintenance work be done on component subject to pressure until the pressure has been completely eliminated 1 Re...

Page 14: ...the fixing nut and replace it if necessary 5 Unscrew and remove the isocyanate cartridge 6 Unscrew and remove the polyol cartridge 7 Unscrew the diffuser and inspect the internal seal Round Jet Assem...

Page 15: ...ched with them in the spare parts and in the gun tool kit 11 Put the block in a vessel with gun cleaning liquid 12 To eliminate all product remains put the gun block unit in a vessel with gun cleaning...

Page 16: ...haft turned 45 18 Turn the head until it is in vertical position and push it down so that the positioning grooves fit on to the sleeve 19 If you fail to find this position place the head in the theore...

Page 17: ...connect the air supply from the gun 5 Unscrew the isocyanate side cartridge by turning it anticlockwise and remove it from its housing Clean the housing with gun cleaning solvent and make sure no loos...

Page 18: ...hine Service Manual 2 Completely close the manual valves of each product by turning them clockwise 3 To eliminate the pressure from the gun press the trigger and project with the gun until the project...

Page 19: ...e pressure has been completely eliminated 1 Remove the coupling block 2 Use a cloth dampened in cleaning fluid to clean the contact surfaces and the seals of the non return cartridge bases 3 Disconnec...

Page 20: ...ing special care not to damage the o rings You will note a certain resistance caused by the interference of the seals with the housing wall 12 Screw on the trigger valve nut until it comes up against...

Page 21: ...ar of the gun 2 Remove the retention ring positioning the cylinder block using pliers for seeger rings 3 Pull hard on the blocking device to remove the whole unit from the cylinder sleeve Also remove...

Page 22: ...f the plunger Insert the cylinder block unit in the lining pressing until it passes the insertion groove of the retention ring 12 Fit the retention ring using pliers for seeger rings WARNING To guaran...

Page 23: ...and if you consider it necessary use a brush to go over the passage holes 2 Unscrew the bolt fixing the lining pin on the rear of the gun 3 Remove the retention ring positioning the cylinder block usi...

Page 24: ...id approaching the cylinder block when pressure is applied to the gun after performing any cleaning repair or maintenance work 9 Fit the sleeve staple and fix it with the screw to the rear of the gun...

Page 25: ..._____________________________________________ 10 Maintenance _________________________________________________ 12 Gun block unit and mix chamber ______________________________________________ 13 Side...

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