Master III Gun Service Manual
Contents
1. UP PRECAUTION When working with the gun or doing maintenance on it all suitable protection must be used in accordance with the recommendations and specifications given by the product suppliers GAMA provides a series of tools and accessories which are necessary for assembling the gun The unit is made up of the following elements Tube spanner chuck holder grease tube greasing pump air connection pipe fast plug cleaning chucks operations manual and components manual 1 Completely close the manual valves by turning them clockwise 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 Isocyanate hose red terminal to the Isocyanate input connector letter A on the Coupling Block 4 Connect the Polyol hose blue terminal to the Polyol input connector letter R on the Coupling Block NOTE The product hoses have been distinguished with red and blue in order to allow them to be rapidly identified The red corresponds to the isocyanate hose and the blue corresponds to the Polyol hose To avoid connection errors the Isocyanate and Polyol hose coupling connectors are of different sizes which makes it impossible for connections to be swapped 7 25 BLOCKING DEVICE AIR SUPPLY CONNECTOR Lr P PRODUCT INLET I CONNECTOR AIR HOSE SUPPLY QUICK CONNECT AI2. on the equipment 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual CHARACTERISTICS High pressure internal mixture Automatical cleaning by pressurised air No solvents required Mechanical spraying Exterior greasing of the mix chamber Approximate weight 1 Kg Dimensions H 19 cm W9cm L19cm SPECIFICATIONS Maximum working pressure Required air pressure Maximum production ratio 1 1 Minimum production ratio 1 1 Opening force 6 bar Closing force 6 bar 210 Kgf cm2 20 6 MPa 3000 psi 6 8 Kgf cm2 0 6 0 8 MPa 85 114 psi 18 Kg min 40 b min 1 5 Kg min 3 3 Ib min 99 Kg 218 Ib 119 Kg 260 Ib Approximate air consumption 6 bar 50 series min 307 litres minute 5 25 1 1 Issue Ref NR 00073 ENG http www gamapur com Service Manual The main components and their description are given for better knowledge of the elements of the NEW MASTER Ill gun For a more precise identification see the Components Manual ref NR 00072 Head Unit Polyol Side Cartridge Unit lsocyanate Side Cartridge Unit Polyol Non Return Cartridge Unit lsocyanate Non Return Cartridge Unit Head Fixing Nut Polyol Manual Valve lsocyanate Manual Valve Mix chamber Trigger Diffuser Blocking Device Coupling block oe ot ee ee oY E a eh O n m h h w N 6 25 1 1 Issue Ref NR 00073 ENG http www gamapur com Service Manual Ane INSTALLATION AND START
3. the Product handed over for repair or replacement which must show the date of purchase and the serial number GAMA reserves the right to refuse to give the guarantee service when the indicated data fail to appear on the invoice or have been modified after the purchase of the Product b The repaired or replaced Product will continue to maintain the original guarantee for the time remaining until the end of the guarantee or for three 3 months from the repair date if the remaining period of the original guarantee were shorter c This guarantee will not be applied to the faults in the Product caused by its faulty installation the natural wear and tear of the components any use other than that considered normal for this Product or which should fail to strictly comply with the instructions of use provided by GAMA due to accident carelessness adjustments alterations or modifications 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 guarantee applicable to the components and accessories forming part of the Product and which have not been made by GAMA will be limited to the guarantee offered by the original manufacturer thereof GAMA WILL NOT RECOGNISE ANY EXPRESS ORAL OR WRITTEN GUARANTEES OTHER THAN THIS PRINTED LIMITED GUARANTEE ALL IMPLICIT GUARANTEES INCLUDING WITHOUT LIMIT ADAPTATION FOR A SPECIFIC USE A
4. the retention ring using pliers for seeger rings 23 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual WARNING To guarantee that the cylinder block is correctly fixed make sure that the retention ring is perfectly housed in the fixing groove To avoid any possible error in assembly 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 the gun 10 Fix the mixing block or head according to the procedure described in the pistol block unit and mix chamber assembly section 11 Make sure you fit the o ring between the block and the sleeve replacing it if it is damaged 12 Start the gun 24 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual CONTENT Warranty 2 Safety and Handling 3 Characteristics 5 Specifications 5 General Description 6 Installation and Start up 7 Standstill Method 10 Maintenance E Gun block unit and mix chamber 13 Side cartridge unit 17 Filter and Non Return cartridge unit 18 Trigger and valve 19 Cylinder block and blocking device 21 Pneumatic cylinder 23 ContenT 25 25 25 1 1 Issue Ref NR 00073 ENG http www gamapur com
5. AiG Service Manual Spray Gun Series Master III 1 1 Issue 24 10 2013 Ref NR 00073 ENG Before installing and operating the MASTER Ill 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 Unit All of the information is aimed at enhancing User Safety and avoiding possible faults due to incorrect use of the Unit Service Manual WARRANTY GARRAF MAQUINARIA S A hereinafter GAMA grants this Guarantee limited to the original purchaser hereinafter Client for the equipment and the original accessories delivered with the equipment hereinafter Product against any fault in design materials or manufacture of the Product at the time of the first purchase by the users and for a period of two 2 years there from If during the guarantee period and under normal conditions of use the Product should fail to work correctly due to defects of design material or manufacture the authorised distributor of the country where the GAMA Product or technical assistance service has been purchased shall repair or replace the Product in accordance with what is established in the following CONDITIONS a The validity of this guarantee will be subject to the presentation of the original invoice issued by the GAMA authorised distributor for the sale of the Product along with
6. IGGER VALVE O RING j TRIGGER SHAFT TRIGGER VALVE NUT QUICK CONNECT TRIGGER AIR SUPPLY 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 Disconnect the air pipe 4 Remove the trigger stop screw 5 Remove the retention ring and extract the pin holding the trigger 6 Unscrew the nut of the trigger valve 7 Remove the trigger shaft and carefully hold it by the end with pliers to remove it from its housing The trigger shaft has a spring in the base Make sure you do not lose it 8 Check the o rings of the trigger shaft Replace them if they are damaged Apply a little grease to make it easier to assemble 19 25 1 1 Issue Ref NR 00073 ENG http www gamapur com Service Manual 9 Make sure the trigger shaft housing is clean and apply a small layer of grease inside 10 Fit the air hose to the rear of the gun with sealing paste on the thread to avoid air leaks 11 Insert the trigger shaft in the spring and insert it inside the 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 against the base 13 Fit the trigger with the pin and hold it with the retention ring 14 Fit the trigger stop screw Screw it to eliminate the play in the trigger without m
7. POL side 15 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com 14 15 Insert the mixing chamber in the head paying attention to its position A ISO side R POL side Make sure the notch on the head of the chamber is always turned to the A side ISO Fit the seal and the PCD if you are working with the Flat chamber Service Manual NOTCH HEAD CHAMBER 16 Screw the diffuser onto the chamber by hand 17 Fit the gun block unit or head by inserting the head of the chamber in the housing at the end of the plunger 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 theoretical position and lightly press the fixing nut Make sure the head is unable to turn and tighten the fixing nut 20 Use a spanner first to tighten the isocyanate cartridge and then the polyol cartridge 21 Fit the filters and non return cartridges on the head paying attention to the location of each one A ISO side and R POL side Take care not to damage the cartridge seals when inserting them on the head use grease for easier insertion 22 Fit the coupling block 16 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual Side cartridge unit WARNING Before carrying out maintenance work on the gun make sure that the unit has be
8. R SUPPLY PRODUCT MANUAL VALVE 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual 5 Open the manual air valve 6 Pressurise the unit and make sure there are no leaks 7 Activate the trigger several times to make sure the mix chamber moves correctly 8 Make sure that the pressure in the machine and the temperature of the heaters and the hoses are correct see the Machine 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 11 Perform a test projection in a vessel WARNING Before carrying out maintenance repair or cleaning work press the blocking device and turn it clockwise to leave it in blocking position or mode Always remove the coupling block from the gun completely close the manual product input valves and disconnect the air supply to avoid any possible accident 8 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Annie Service Manual This NEW MASTER III model comes with a head turning mechanism so that it can be turned according to the inlet position of the product hoses MATERIAL INLETS TOP SIDE MATERIAL INLETS BUTTOM SIDE Do the following to make the change 1 Completely close the manual valves by turning them clockwise 2 To eliminate the pressure from the gun press the trigger and project with the gun unti
9. RE SUBJECT TO THE DURATION OF THIS WRITTEN GUARANTEE GAMA DOES NOT ASSUME ANY KIND OF COMMITMENT OR RESPONSIBILITY FOR ALL POSSIBLE DAMAGE OR EXPENSE CAUSED BY FAULTS IN THE OUTPUT OF THE PRODUCT ITS WORKING OR THE DISPENSING OF MATERIAL THROUGH THE PRODUCT INCLUDING WITHOUT LIMITATION ALL EXPENSES CAUSED BY DAMAGE TO PEOPLE OR PROPERTY EQUALLY GAMA WILL IN NO CASE ACCEPT LIABILITY FOR THE LOSS OF SPECULATIVE PROFITS OR COMMERCIAL LOSSES ALL REPAIRS OR REPLACEMENT OF FAULTY PRODUCTS WILL CONSTITUTE THE COMPREHENSIVE FULFILMENT OF GAMA S OBLIGATIONS WITH RESPECT TO THE CLIENT GAMA DOES NOT IN ANY WAY GUARANTEE THE SUITABILITY OR APTITUDE OF ITS PRODUCT FOR ANY PARTICULAR PURPOSE OR APPLICATION All of the information provided on components which have not been manufactured by GAMA and which is based on reports received from the original manufacturer though considered precise and reliable is provided without any guarantee or responsibility of any explicit or implicit kind All concession sale or financial leasing of the Product by GAMA in no case explicitly or implicitly constitutes any authorisation acceptance or concession for the use of any rights or patents nor does it encourage nurture or back their infringement The restrictions on the guarantee suppose no limitation on the legal rights of the consumer established in applicable national legislation nor do they affect any rights derived from the bargain and sale agreement between the c
10. S 5 Remove the filter holder DN _SPRING CHECK VALVE _ cartridge i EIN N BALL CHECK VALVE 6 Unscrew the stopper and NG remove the spring and the w o PIETER non return ball Clean them N with gun cleaning solvent N O RING ad 7 Separate the filter and clean CARTRIDGE it with gun cleaning solvent oS Make sure that it is not blocked If you see that the mesh is obstructed over more than 20 of its filter surface replace it 8 Clean all of the components meticulously to eliminate all product remains using a cloth dampened with gun cleaning solvent and a brass brush 9 Make sure the holes of the filter holder cartridge are not blocked by remains of crystallised product If you should see any dirt on the head clean the communicating drill holes with a drill and a brass brush 18 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual Anni Trigger and valve 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 AIR HOSE SUPPLY TRIGGER PIN RETENTION RING TRIGGER STOP BOLT A TR
11. al utensils that can scratch the contact surfaces 12 Fit all the components and put the coupling block in the gun 13 Remove the stopper and grease the mix chamber with the greasing pump supplied in the kit with the gun this will prevent the cleaning air of the gun from drying the ISOCYANATE product and will therefore prevent it from crystallising and scratching the chamber and the bushing GREASE POINT NB The action of lubricating the gun at the end of the day will avoid maintenance time as it will not be necessary to remove the chamber each day to clean it 10 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual PRECAUTION To avoid possible contamination by product remains on the gun components do not swap Isocyanate parts with Polyol parts The gun has the Isocyanate side marked with the letter A If the product hoses still have pressure follow the Standstill Method indicated in the Machine Service Manual To eliminate the pressure from the hoses with the gun dismantled put the product inlet coupling block in a suitable container remain at a careful distance and very carefully very slowly open the manual valves With pressure the product will come out of the top of the coupling block 11 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual MAINTENANCE To get the most of your MASTER III gun periodical maintenance must be carried out 12 25 Carefully
12. at 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 PLUNGER O RING PLUNGER PLUNGER SPRING O RING SLEEVE STAPLE FIXING BOLT BLOCKING DEVICE NS RETENTION SPRING 1 Proceed to remove the mix chamber following the procedure indicated in the Gun block unit and mix chamber section Clean the mix chamber 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 using pliers for seeger rings 4 Pull hard on the blocking device to remove the whole unit from the cylinder sleeve Also remove the spring and the plunger from inside the cylinder 5 Check the state of the o rings of the shaft and the plunger Replace them if they are damaged Apply a little grease to make it easier to assemble 6 Fitthe plunger inside the cylinder sleeve taking special care not to damage the o rings 7 Insert the spring in the rear housing of the plunger Insert the cylinder block unit in the lining pressing until it passes the insertion groove of the retention ring 8 Fit
13. e made of the risks derived from the products to be dispensed the type of application and the working environment The gun forms part of the projection equipment which is why all safety measures must be taken that are provided for the start up use of the equipment in addition to all specific measures for the use of the gun 4 25 Carefully read the safety data sheet provided 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 prevent serious damage caused by the impact of fluids under pressure never open a connection or do maintenance work on components subject to pressure until 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 the use of protective goggles gloves shoes and safety clothes and breathing equipment The equipment includes components which reach high temperatures and may cause burns The hot parts of the unit must not be handled or touched until they have completely cooled To prevent serious injury caused by crushing or amputations do not work with the equipment if the moving part safety protections are not duly installed Make sure that all safety protections are correctly fitted after carrying out repair or maintenance work
14. en 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 Perform the Unit Standstill Method with the procedure indicated in the 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 projection fan begins to narrow 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 no loose particles remain inside PRECAUTION Use wooden or plastic utensils or a brass brush for cleaning Do not use metal utensils that can scratch the surface Before cleaning the cartridge housing and contact bushing with cleaning fluid remove all of the o rings in these components to avoid them being damaged by the cleaning fluid or the brass brush 6 Check the seals of the cartridge and the contact bushing Replace them if they are worn or damaged 7 Check the metal friction bushing for wear and measure its complete length Replace it if the length is under 7 mm 8 Grease all of the componen
15. 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 BAYONET CYLINDER SHAFT END CHAMBER FIXING NUT 180 CARTRIDGE sl NS DIFFUSER m ISO CARTRIDGE POL _ FILTER CHECK VALVE TRIDGE CARTRIDGE a POL CARTRIDGE FILTER CHECK VALVE NO COUPLING BLOCK 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 13 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual 3 Remove the lower non return cartridges using a screwdriver Make sure you do not damage the seals 4 Loosen the head fixing nut by turning it anti clockwise and then remove the central block or head by turning it 45 clockwise and pulling on it so that it separates from the rest of the gun Inspect the o ring on the fixing nut and replace it if necessary 5 Unscrew and remove the isocyanate cartridge Unscrew and remove the polyol cartridge 7 Unscrew the diffuser and inspect the internal seal di ROUND CHAMBER f O RING f DIFFUSER Round Jet Assembly 8 Make su
16. l the projection fan begins to narrow 3 Press the blocking device and turn it clockwise to leave it in blocking position or mode Close the air inlet valve Remove the coupling block from the gun Use a cloth dampened in solvent to clean the contact surfaces and the seals of the non return cartridges Turn the isocyanate cartridge one turn anticlockwise Turn the polyol cartridge one turn anticlockwise Turn the locknut half a turn anticlockwise Pull lightly on the mix head and turn it 180 half a turn 10 Gently press the head until it is seated on the throat of the sleeve and cannot turn If you do not find the fixing position leave the head in its theoretical position and tighten the fixing nut slightly 11 Make sure the head is seated and tighten the sleeve throat fixing nut to fix the head 12 Tighten the two side cartridges 13 Connect the coupling block to the mixhead and fix it firmly with the central screw 14 To leave the gun operative carry out the following steps for Installation and Start up a oa oO ND N B To pass from one position to another do not loosen the head fixing nut more than half a turn 9 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual STANDSTILL METHOD 1 Perform the Unit Standstill Method with the procedure indicated in the Machine Service Manual 2 Completely close the manual valves of each product by turning them clockwise 3 To eliminate the pres
17. om the blocking screw 8 Remove the collar from the cylinder block and replace it if it is damaged Apply a little grease to make it easier to assemble 9 Pay special attention to correctly fit the collar the closing lips must face the cylinder side 21 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com KaLa Service Manual 10 Fitthe cylinder block on the blocking screw Slip the spring and the blocking device on the blocking screw Screw in the two adjustment screws making sure that they are perfectly flush with the flats at the end of the blocking screw Make sure that the blocking device is well fitted 11 Insert the spring in the rear housing of the plunger Insert the cylinder block unit in the lining pressing until it passes the insertion groove of the retention ring 12 Fitthe retention ring using pliers for seeger rings WARNING To guarantee that the cylinder block is correctly fixed make sure that the retention ring is perfectly housed in the fixing groove To avoid any possible error in assembly avoid approaching the cylinder block when pressure is applied to the gun after performing any cleaning repair or maintenance work 13 Fitthe sleeve staple and fix it with the screw to the rear of the gun 14 Start the gun 22 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Ane Service Manual Pneumatic cylinder WARNING Before carrying out maintenance work on the gun make sure th
18. onsumer and supplier 2 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual 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 GAMA 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 SAFETY AND HANDLING This chapter contains important information on safety handling and use of your GAMA New MASTER Illgun Before installing and operating the GDI 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 A WARNING establishes information for alerting 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 situation which could cause minor injuries A NOTE is relevant information on the procedure being carried out Careful study of
19. oving the shaft 15 Fix the mixing block according to the procedure described in the pistol block unit and mix chamber assembly section 16 Start the gun 20 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Service Manual Cylinder block and blocking device 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 O RING BLOCK SCREW CYLINDER HEAD BLOCKING PLUNGER SPRING CYLINDER HEAD e RETENTIION RING KNOB ADJUSTEMENT SCREW FIXING SCREW SLEEVE STAPLE 1 Unscrew the bolt fixing the lining pin on 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 remove the plunger spring 4 Check the state of the closing seal of the cylinder block Replace it if it is damaged 5 Apply a little grease to make it easier to assemble 6 Loosen the two adjustment screws on the blocking device Remove the blocking screw and the blocking spring from the device 7 Separate the cylinder block fr
20. re the air holes for projection are not obstructed If they are blocked or dirty clean them with suitable brushes of the right size CLEANING DRILL DIFFUSER Cleaning Round Diffuser Projection Air Holes N B the diffuser cleaning chucks are attached with it in the spare parts and in the gun tool kit 9 Remove the mixing chamber from the rear of the head Inspect it and replace it if it is damaged 14 25 1 1 Issue Ref NR 00073 ENG http www gamapur com Annie Service Manual 10 To clean the product holes of the chamber use suitable brushes of the right size for the holes It is not necessary to remove the head chamber to do this operation CLEANING DRILL INPUT HOLES CLEANING DRILL OUTPUT HOLE _ Cleaning Round Chamber Product Input Cleaning Round Chamber Product Holes Output Hole N B the chamber cleaning chucks are 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 cleaning liquid and rub it with a brass brush PRECAUTION Use wooden or plastic utensils or a brass brush for cleaning Do not use metal utensils that can scratch the contact surfaces Rearm the gun according to the following procedure 13 Screw on the friction bushing cartridges by hand paying attention to the location of each one A ISO side and R
21. read the safety data sheet provided 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 prevent serious damage caused by the impact of fluids under pressure never open a connection or do maintenance work on components subject to pressure until 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 the use of protective goggles gloves shoes and safety clothes and breathing equipment The equipment includes components which reach high temperatures and may cause burns The hot parts of the unit must not be handled or touched until they have completely cooled To prevent serious injury caused by crushing or amputations do not work with the equipment if the moving part safety protections are not duly installed Make sure that all safety protections are correctly fitted after carrying out repair or maintenance work on the equipment 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com Annie Service Manual 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
22. sure from the gun press the trigger and project with the gun until the projection fan begins to narrow 4 Press the blocking device and turn it clockwise to leave it in blocking position or mode 5 Remove the coupling block from the gun Use a cloth dampened in solvent to clean the contact surfaces and the seals of the non return cartridges 6 Remove the non return unit with bottom filter and the friction bushing unit on the Polyol side located in the mixing block or head Clean the unit with gun cleaning solvent 7 Remove the non return unit with bottom filter and the friction bushing unit on the lsocyanate side located in the mixing block or head Clean the unit with gun cleaning solvent 8 Remove the filters Clean them carefully with gun cleaning solvent making sure that the mesh is completely free of product remains PRECAUTION To avoid spilling the rest of the product which has accumulated in the side cartridges and in the non return cartridges onto the floor always remove the coupling block and the side cartridges on a waste vessel 9 Loosen the head by turning the fixing nut anti clockwise Turn the head 45 clockwise Pull on the head to remove it from the gun body Clean the block with gun cleaning solvent 10 Remove the diffuser and extract the chamber from the rear of the head 11 Clean the two contact surfaces of the mix chamber PRECAUTION Use wooden or plastic utensils or a brass brush for cleaning Do not use met
23. 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 GAMA distributor or make direct contact with Garraf Maquinaria 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 GAMA technical service 3 25 1 1 Issue Ref NR 00073 ENG http www gamapur com Service Manual When working with the gun it is essential to dress suitably and use personal protection equipment including the unlimited use of gloves protective goggles safety footwear and face masks Use breathing equipment when working with the gun in enclosed or insufficiently ventilated atmospheres The introduction and follow up of safety measures must not be limited to those described in this manual Before starting to use the gun a rigorous analysis must b
24. ts and refit them in the cartridge 9 Screw the isocyanate cartridge unit into its housing until it blocks Make sure it is correctly tightened to avoid product leaks 10 Do the same with the polyol cartridge points 5 9 CONTACT BUSHING O RING CARTRIDGE 17 25 1 1 Issue Ref NR 00073 ENG http AWwww gamapur com KaLa Service Manual 11 Carry out the projection procedure indicated in the start up section 12 Start the gun PRECAUTION Use wooden or plastic utensils or a brass brush for cleaning Do not use metal utensils that can scratch the contact surfaces Filter and Non Return cartridge unit 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 Perform the Unit Standstill Method following the procedure indicated in the 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 projection fan begins to narrow We 4 Disconnect the air supply a NS PLUG from the gun i k E
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