Krautzberger 0920-090-2357 Operating Instructions And Spare Parts List Download Page 19

Page: 19 / 19

Type

RA-2 HV3

Operating Instructions

DOK-208-GB.doc

No. 0920-..,

0921-...

14. Operating malfunctions and spray profile defects

Defect

Cause Remedy

Normal spray profile

Excessive spray profile toward

the top and bottom

Soiled air nozzle

Soiled material nozzle

Clean nozzles

Spray profile veers markedly to

left or right

Soiled air nozzle

Soiled material nozzle

Clean nozzles

Heavy application in the centre

of the spray profile

Two much material

Excessively thick material

Reduce material feed

Dilute material

Split spray profile

Insufficient material

Flat jet air pressure too high

Increase material feed

Reduce flat jet air pressure

Surging or halting material jet

Insufficient material in pressure

vessel

Blocked material path

Loose or damaged material

nozzle

Worn needle packing

Refill pressure vessel

Clean

Tighten or renew

Replace

Material leakage at packing

screw

Needle packing defective

Replace needle packing

Material nozzle drips

Worn of damaged needle

Soiled or damaged material

nozzle

Replace needle

Clean or replace material nozzle

Summary of Contents for 0920-090-2357

Page 1: ...Operating instructions and spare parts list keep for future use Robot AutomaticSpray Gun Typ RA 2 HV3 Article No 0920 090 0921 090 ...

Page 2: ...bt consult the supplier s of the components Where necessary take protective measures and effect special notification of the particular hazard When using substances such as solvents which can generate an increased explosion potential due to atomisation or spraying in air take protective measures and effect special notification of the particular hazard In case of doubt consult the supplier s of the ...

Page 3: ...the control and or atomiser air feed or the material pressure during setting and maintenance work without the knowledge or consent of the setup technician Check wearing parts at appropriate intervals and replace if necessary Only use spare parts and accessories from Krautzberger GmbH Krautzberger GmbH does not assume liability for damage if parts from other suppliers are used The instructions and ...

Page 4: ...material are made of stainless steel 2 Basic design mode of operation The design and the various versions of the automatic spray gun type RA 2 HV3 are shown in the diagram 140 0021 details and installation notes are shown in the diagram 140 603 the diagram 140 0019 shows accessories The automatic spray gun type RA 2 HV3 is supplied as standard with flat circular jet and single material connection ...

Page 5: ...up 4 1 Connections Control air to input St symbol stamped next to connection Circular jet air to input R symbol stamped next to connection Flat jet air to input F symbol stamped next to connection Material connection to input M symbol stamped next to connection Caution Compressed air and material feed should only be connected up by suitably trained personnel Ensure that the pressures and temperatu...

Page 6: ...circular jet air supply and flat jet air supply No air or material must be discharged from the automatic spray gun type RA 2 HV3 Where present open the adjusting nut 36 of the needle stroke adjuster see section 5 2 Mode of operation Spray profile adjustment Open control air supply the needle in the material nozzle must retract Open circular jet air pressure air must flow out of the central borehol...

Page 7: ...ance routine and adjusted if necessary As the settings of circular and flat jet air pressure as well as material pressure affect each other the spray profile has to be set in several steps It is advisable to set the spray profile by only varying the circular and flat jet air pressure The material feed should only be altered if the desired spray profile cannot be achieved as described above The mat...

Page 8: ...rol for F and R in line with the diagram Otherwise imaterial may escape in non atomised form from the material nozzle at the start of the spraying process i and the nozzles may become soiled or blocked at the end of the spraying process Excessive air pressure not only leads to unnecessarily high air consumption but also generates heavy misting of the coating substance Insufficient air pressure res...

Page 9: ... onecessary 8 Operating breaks cleaning maintenance Wearing parts such as material nozzle 7 to 10 air nozzle 3 to 6 material needle 39 or 40 material needle gaskets 21 and 29 guide ring 24 and other gaskets as well as fastening components should be checked at appropriate intervals and replaced if necessary e g if the material needle does not close sufficiently or if there is uncontrolled discharge...

Page 10: ...ing process the non metal parts should be disposed of as special waste 10 Technical data Operating pressures Operating temperature Max material pressure 1 2 MPa 12 bar Max material temperature 100 C Max atomiser air pressure R and F 0 8 MPa 8 bar Min control air pressure 0 4 MPa 4 bar Max control air pressure 0 8 MPa 8 bar Max air temperature 50 C Connections see dimension sheet 140 0021 Material ...

Page 11: ...nt changes between circular jet low material requirements and flat jet generally higher material requirements during the spraying process Parts in contact with the material Standard version Version on request Part designation Made of Art no Made of Art no Screw connection plastic 6903 0320 0807 stainless steel 6903 030 0846 Screw connection plastic 6903 030 0725 stainless steel 6903 030 0853 Doubl...

Page 12: ...2 G1 4 0 6 MPa 6 bar O S E O S O S DV D DV D Control of flat and circular jet air via pressure regulating valves to ensure optimum adjustment of the spraying parameters to a constant spraying situation Preliminary air control is to be assured by external control of the pressure regulating valves Start of spraying first activate spraying air R and if applicable F then open control air St End of spr...

Page 13: ...irements on the customer s premises Ready made nozzle extensions are also available see Krautzberger GmbH order catalogue Caution When working with a nozzle extension note that explosive mixtures can be created extremely easily due to the interaction of flammable materials and air in cavities Ensure adequate ventilation 11 Special designs i Automatic spray gun type RA 2 HV3 with circulation connec...

Page 14: ... of Machines Plant and Equipment EN 1953 Spraying Equipment for Coating Substances Safety Requirements German version prEN 1953 1995 The following documents are fully available Overall diagram of the automatic spray gun type RA 2 HV3 Detailed and complete diagrams for the checking of compliance of the automatic spray gun type RA 2 HV3 with the basic safety and health safety requirements A list of ...

Page 15: ...rticle no Designation 27 0902 010 0512 Gasket 28 0902 040 0047 Seal screw 29 0902 010 0186 Gasket 30 0902 020 0074 Spring 31 0902 040 0066 Sealing element for needle stroke limiter 32 0902 040 0043 Cover without needle strokelimiter 33 0902 030 3298 Screw 4 pcs 34 0902 030 2730 Ball 2 pcs 35 0902 020 0151 Lock washer 36 0902 040 0067 Adjusting nut 37 0902 080 0207 Screw connection 38 0902 010 0144...

Page 16: ...Type RA 2 HV3 Operating Instructions DOK 208 GB doc No 0920 0921 140 0603 16 ...

Page 17: ...Type RA 2 HV3 Operating Instructions DOK 208 GB doc No 0920 0921 17 Dimensions ...

Page 18: ...HV3 Operating Instructions DOK 208 GB doc No 0920 0921 18 Schematic diagram coating substance F Filter DE pump RV pressure regulating valve RW Stirrer optional M coating substance circulation connection optional ...

Page 19: ...e Two much material Excessively thick material Reduce material feed Dilute material Split spray profile Insufficient material Flat jet air pressure too high Increase material feed Reduce flat jet air pressure Surging or halting material jet Insufficient material in pressure vessel Blocked material path Loose or damaged material nozzle Worn needle packing Refill pressure vessel Clean Tighten or ren...

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