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*5$&2
Pneumatically operated automatic spray gun for airless atomization of liquid materials.
The original manufacturer's nameplate is located
on the spray gun. Please compare the
specifications and complete if necessary.
Keep user information for future reference
CONTENTS OF THE USER INFORMATION
OPERATING INSTRUCTIONS
CORRECT USE
FUNCTIONAL DIAGRAM
PRODUCT DESCRIPTION
SUITABILITY, MATERIAL
TECHNICAL DATA
Key
Data
Material in contact with the fluid
Dimensions, Connection thread
Mounting the gun
LIST OF TOOLS
START-UP
IMPORTANT INFORMATION CONCERNING START-UP AND OPERATION
OPERATION
MAINTENANCE AND INSPECTION, REPAIR
TORQUE MOMENTS
TROUBLESHOOTING
FOOTNOTE
REPAIR PARTS SET
ACCESSORIES
Includes:
TEST CERTIFICATE (final inspection)
DECLARATION OF CONFORMITY
Replacement for issue of 02.97
Subject to change
Prepared 28.10.99 Stengele
Approved 12.11.99 Kuhn
SPRAY GUN A KA 420
USER INFORMATION
- OPERATING INSTRUCTIONS -
6000330E,
Read and understand the operator manual and
the safety instructions before taking into
operation
In this manual important information is marked with
the following symbols.
Information affecting your safety
Important operational direction
Continued on pages 1 to 11
Rev.A
Page
2
2
3
3
4
6
7
8
8
8
9
9
10
10
11
Issued
10.99
B.2.30.95-B
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Related Manuals for Graco AKA 420
Summary of Contents for Graco AKA 420
- Page 1 *5$&2 6000330E, Rev.A SPRAY GUN A KA 420 Pneumatically operated automatic spray gun for airless atomization of liquid materials. Read and understand the operator manual and the safety instructions before taking into operation In this manual important information is marked with the following symbols.
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Page 2: Correct Use
CORRECT USE The spray gun A KA 420 is exclusively manufactured for normal use in surface technology (for spraying coating substances) or for similar work. Any other purpose above and beyond this, is considered as incorrect use. We are not liable for any damage or injury resulting from this;... -
Page 3: Product Description
PRODUCT DESCRIPTION switched air Fig. 2 The spray gun A KA 420 is operated pneumatically. When switched on, the control air opens the fluid valve When switched off, the fluid valve is closed by the pressure spring The parts in contact with the fluid are suitable for water-based paints (stainless steel). The needle is completely made of hardened steel. - Page 4 KEY TO DESIGNATION Spray gun A KA 420 - 0 Without nozzles Fluid inlet pressure Conventional Airless Automatic DATA Spray gun AKA 420 (basic version) Part nbr.: 79331 006002 Fluid inlet pressure max. permissible Fluid temperature max. perm. °C Operating air pressure max.
- Page 5 MATERIALS IN CONTACT WITH THE FLUID Pos. Description Material Gun body SST 1.4305 Valve seat (diffuser) SST 1.4305 Needle Hardened steel Seat Hardened steel Profile sealing ring Spacer Grooved ring Filter element Fig. 3 Materials that contain chlorinated hydrocarbons such as trichloro-ethane or methylene chloride react with aluminum to form metal-organic compounds.
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Page 6: List Of Tools
MOUNTING THE GUN centrally at the rear end on a bracket, Position of the leakage hole on a reciprocating arm by means of a rod on a stationary support Positioning pin ø3 Fig. 5 LIST OF TOOLS Tools for the spray gun in its basic version Drift Allen Screw Open-end spanner... - Page 7 START-UP Fasten spray gun The threaded connection M 10 must be locked. The leakage holes should point downwards. Connect hoses and hose line(s) Then check for tightness. Install the in-line filter element Automatic spray guns are delivered without filter elements. Filter elements must be installed later (the choice of mesh size depends on spray tip used).
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Page 8: Operation
IMPORTANT INFORMATION CONCERNING START-UP AND OPERATION During prolonged operating pauses and/or during shutdown, no energy potential (fluid and/or air pressure and/or electricity) should be present at the spray gun. The working area of the spray gun must be protected. The recommendations of the manufacturer of the fluid should be observed. OPERATION Do not exceed the specified technical data (page 4). -
Page 9: Tightening Torque
The parts should be lightly greased before assembly. – We recommend “grease OKS 270” (Tube 100g, Part nbr. 70950 003001). • The service life of the hose lines is adversely affected, and thus shortened, by surrounding influences (oxygen in air, temperature, light, etc.), even if correctly handled. It is recommended that they undergo regular visual checks and occasional checking of performance. - Page 10 FOOTNOTE The spray gun is intended for attachment/installation to/in a machine for surface technology. The start-up is prohibited until it has been established that the machine in/to, which the spray gun is to be installed/attached, conforms to the provisions of the EU directive on machines in the version 93/44/EEC.
- Page 11 Please lay out each order as follows: Description Pos. No. Part nbr. Elbow 77214 009003 GRACO N.V. Industrieterrein “Oude Bunders” Loc. 2206 - Slakweidestraat 31 3630 Maasmechelen - Belgium Tel. : 32 89 770 700 Fax: 32 89 770 777...
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Page 12: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco´s written recommendations.