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Master II Gun 

Service Manual 

 

2/21 

2.0 Issue  

Ref. NR-00021-ENG

 

http://www.gamapur.com/

 

 

 

HI-TECH  SRAY  EQUIPMENT

,  S.  A.  (hereinafter  “HI-TECH”)  grants  this 

LIMITED  WARRANTY

  to  the 

original  buyer  (hereinafter  the  “Client”)  for  the  unit  and  the  original  accessories  given  with  the  unit 
(hereinafter the “Product”) against any fault in the design, the materials or the manufacture of the Product 
at the time of the first purchase by the user and for a duration of two (2) years thereafter. 

If  during  the  period  of  guarantee  and  under  normal  conditions  of  use,  the  Product  should  stop  working 
properly  due  to  faults  in  the  design,  the  materials  or  the  manufacture,  the  authorised  distributor  in  the 
country where the Product has been purchased or the HI-TECH technical service will 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 HI-TECH authorised distributor for the sale of the Product along with the Product handed over 
for repair or replacement, which must show the date of purchase and the serial number. HI-TECH 
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 during the time 

remaining until its end, or for three (3) months after the repair date, if the remaining period of the 
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  HI-TECH; 
due  to  accident,  carelessness,  adjustments,  alterations  or  modifications  of  the  Product  not 
authorised  by  HI-TECH  or  due  to  the  use  of  accessories,  heating  devices,  pumping  equipment 
and/or dispensers that have not been approved or manufactured by HI-TECH. 

d)  The  guarantee  applicable  to  the  components  and  accessories  forming  part  of  the  Product  and 

which  have  not  been  made  by  HI-TECH  will  be  limited  to  the  guarantee  offered  by  the  original 
manufacturer thereof. 

 

HI-TECH  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, ARE SUBJECT 
TO  THE  DURATION  OF  THIS  WRITTEN  GUARANTEE.  HI-TECH  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, HI-TECH 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  HI-TECH'S  OBLIGATIONS  WITH  RESPECT  TO  THE  CLIENT.  HI-
TECH  IN  NO  WAY  GUARANTEES  THE  IDEALNESS  OR  SUITABILITY  OF  ITS  PRODUCT  FOR  ANY  PURPOSE  OR  SPECIFIC 
APPLICATION. 

 

All of the information provided on components which have not been manufactured by  HI-TECH 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  HI-TECH  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 consumer and supplier. 

 

WARRANTY 

Summary of Contents for Master II Series

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

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

Page 3: ...on 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...

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

Page 5: ...Kgf cm2 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 pro...

Page 6: ...f the elements of the MASTER II series gun For more precise identification see the Components Manual ref NR 00020 ENG 1 Gun block unit 2 Polyol side cartridge unit 3 Isocyanate Side Cartridge Unit 4 B...

Page 7: ...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 th...

Page 8: ...e the Machine Service Manual 9 Completely open the manual valves of each product by turning them anticlockwise 10 Press the blocking device and turn it anticlockwise to leave it in projection mode or...

Page 9: ...Use a cloth dampened in solvent to clean the contact surfaces and the seals of the coupling block 6 Turn the isocyanate cartridge two turns anticlockwise 7 Turn the polyol cartridge two turns anticloc...

Page 10: ...ntral block by turning the locknut anticlockwise Clean the block with gun cleaning solvent 10 Clean the two contact surfaces of the mix chamber PRECAUTION Use wooden or plastic utensils or a brass bru...

Page 11: ...ssure 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 li...

Page 12: ...due to breakage or deterioration make sure that they are completely open before mounting on the coupling block that the sphere is lodged inside the valve body If not it could damage the valves at the...

Page 13: ...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 begin...

Page 14: ...der 7 mm 13 Grease all of the components and refit them in the cartridge 14 Screw the isocyanate cartridge unit into its housing until it blocks Make sure it is correctly tightened to avoid product le...

Page 15: ...o pressure until the pressures have been completely eliminated 1 Remove the coupling block 2 Use a cloth dampened with solvent to clean the contact surfaces and the seals of the coupling block 3 Disco...

Page 16: ...inside the handle 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 down the trigger valve nut unt...

Page 17: ...n 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 18: ...sing of the plunger Put the cylinder block unit inside the sleeve pressing until it stands out from the insertion groove of the retention ring 12 Fit the retention ring using pliers for seeger rings W...

Page 19: ...sleeve staple to 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 cylin...

Page 20: ...plied to the gun after performing any cleaning repairs or maintenance work 11 Fit the sleeve staple and fix it with the screw to the rear of the gun 12 Tighten the mix chamber by hand using a spanner...

Page 21: ...__________________________________ 7 Standstill Method _____________________________________________ 10 Maintenance _________________________________________________ 11 Gun block unit and mix chamber...

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