background image

Service Manual

 

 

 

13/25 

1.4 Issue  

Ref. NR-00073-ENG 

http://www.gamapur.com

 

 

Gun block unit and mix chamber 

 

WARNING:

 Before carrying out maintenance work on the gun, make sure that the unit 

has been completely stopped, that all of the push buttons and the main switch are turned 
off  and  that  the  unit  is  disconnected  from  the  main  power  supply.  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. 

Remove the coupling block. 

2. 

Use  a  cloth  dampened  in  solvent  to clean  the  contact  surfaces  and  the  seals  of  the  non-
return cartridges. 

PRECAUTION:

 To avoid spilling the rest of the product which has accumulated in the 

cartridges onto the floor, always remove the coupling block and the side cartridges on a 
waste vessel. 

 

Summary of Contents for Master III Series

Page 1: ...II 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 th...

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

Page 3: ...ng you on the situations 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 si...

Page 4: ...ed by 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 pre...

Page 5: ...2 24 MPa 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 productio...

Page 6: ...For a more precise identification see the Components Manual ref NR 00072 1 Head Unit 2 Polyol Side Cartridge Unit 3 Isocyanate Side Cartridge Unit 4 Polyol Non Return Cartridge Unit 5 Isocyanate Non...

Page 7: ...wise The 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 I...

Page 8: ...hine Service 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...

Page 9: ...and the seals 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...

Page 10: ...ve the 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...

Page 11: ...ll not 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 gu...

Page 12: ...l you are 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 t...

Page 13: ...power supply 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 eliminat...

Page 14: ...ring on 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 Je...

Page 15: ...re attached 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 c...

Page 16: ...unger shaft 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...

Page 17: ...4 Disconnect 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 n...

Page 18: ...he Machine 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 p...

Page 19: ...until the 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...

Page 20: ...grip taking 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...

Page 21: ...the rear 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...

Page 22: ...using of 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...

Page 23: ...amber 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 blo...

Page 24: ...ly avoid 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 th...

Page 25: ...Method _____________________________________________ 10 Maintenance _________________________________________________ 12 Gun block unit and mix chamber ______________________________________________ 1...

Reviews: