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Service Manual 

Spray Gun 

Series Master 

1.5 Issue 7/18/2013 

Ref. NR-00008-ENG 

 
 
 
 
 
 
 
 
 
 
 

 

 Before installing the  Master Gun and starting it  up, carefully read all the 
technical and safety documentation included in  this manual.  Pay special 
attention to the information to know and understand the operation and the 
conditions of use of the gun.  All of the information is aimed at enhancing 
User Safety and avoiding possible breakdowns derived from the incorrect 
use of the Gun. 

 

Summary of Contents for Master Series

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

Page 2: ...ing devices pumping equipment dispensers or other parts or accessories with the Product that have not been approved or manufactured by GAMA Failure to follow the operating instructions and recommendat...

Page 3: ...e characteristics of the gun and the operating procedures By following the instructions and recommendations contained herein you will reduce the potential risk of accidents in the installation use or...

Page 4: ...the safety data sheet provided by your supplier Deal with the waste caused according to current regulations To avoid damage caused by the impact of pressurized fluids do not open any connection or per...

Page 5: ...cm2 20 6 MPa 3000 psi Air pressure required _________________________ 6 8 Kgf cm2 0 6 0 8 MPa 85 114 psi Maximum production ratio 1 1 ________________________________ 18 Kg min 40 lb min Minimum produ...

Page 6: ...ir description are shown For more precise identification see the Components Manual ref NR 00004 ENG 1 Gun block unit 2 Polyol input block unit 3 Metal sealing kit 4 Polyol filter body 5 Polyol manual...

Page 7: ...urn it clockwise to set it to the blocking position 3 Fit the air supply pipe and connect it to the connector on the rear of the gun 4 Connect the Isocyanate hose red terminal to the connection on the...

Page 8: ...ockwise to set it to the spray position 12 Perform a test projection in a vessel WARNING Before performing maintenance repair or cleaning work press the safety stop and turn it clockwise to set it to...

Page 9: ...ATE product and avoiding crystallization which may damage the chamber and cap NB The use of injecting lubrication into the gun at the end of the day will avoid maintenance time as it will not be neces...

Page 10: ...subject to pressure until all pressure has been eliminated Use suitable protection when operating maintaining or being present in the area where the equipment is functioning This includes but is not...

Page 11: ...tensils that can scratch the contact surfaces Remove the gun block mounting bolts and separate the gun block by sliding it over the chamber To eliminate the residual product clean the gun block unit u...

Page 12: ...Clean the contact surfaces using a cloth dampened in gun cleaning solvent Unscrew the filter housing and remove the seal and the filter screen Carefully clean the filter with gun cleaning solvent and...

Page 13: ...than 1 4 of a turn can damage the plastic metal check valve and cause leaks Check the wear on the metal seal by measuring the distance that it stands out from the cap housing If the seal is worn knock...

Page 14: ...ssure has been completely eliminated Remove the side blocks and carefully separate them from the gun block Clean the contact surfaces using a cloth dampened in gun cleaning solvent Disconnect the air...

Page 15: ...le 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 Screw down the trigger valve nut until it does ceiling...

Page 16: ...ove the whole unit from the cylinder Also remove the plunger spring Check the state of the o ring seal on the end cap Replace it if it is damaged Apply a little grease to facilitate the placement of t...

Page 17: ...he fixing groove To avoid possible errors in assembly avoid approaching the cylinder block when applying pressure to the gun after cleaning repair or maintenance operations Fit the clamp and fix it wi...

Page 18: ...ove the o ring Use a spanner to lock the end of the pneumatic cylinder shaft and unthread the mixing chamber Clean the mixing chamber and if you consider it necessary use a brush to go over the passag...

Page 19: ...nce operations Install the cylinder clamp Hand tighten the mix chamber while holding the end of the pneumatic cylinder with a spanner Assemble the gun block by sliding it over the chamber and fix it t...

Page 20: ...__ 6 Installation and Start up ________________________________________ 7 Shutdown Procedures __________________________________________ 9 Maintenance _________________________________________________...

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