Connections; Start-Up; Spray Profile Adjustment; Operational Interruptions, Cleaning - Krautzberger MIKRO 3 Manuel D'utilisation

Designation: Automatic spray gun
IN THE WORKING ZONE, AVOID OPEN FLAMES AND RED-
HOT COMPONENTS AS WELL AS EQUIPMENT, TOOLS AND
PARTS THAT CAN CREATE IGNITABLE SPARKS.
HANG UP "NO SMOKING" SIGNS IN A 5 METRE RADIUS OF
THE WORKING ZONE. MAKE FIRE EXTINGUISHERS AVAIL-
ABLE IF THESE ARE NOT ALREADY IN PLACE!
COMPLY WITH ALL NATIONAL AND REGIONAL WATER PRO-
TECTION REGULATIONS. COMPLY WITH ALL NATIONAL
AND REGIONAL WASTE DISPOSAL REGULATIONS.
FRICTION CHARGING DUE TO FLOWING COATING SUB-
STANCES AND/OR COMPRESSED AIR CAN LEAD TO ELEC-
TRIC SHOCKS DUE TO ELECTROSTATIC DISCHARGE!
THE SPRAY GUN MUST THEREFORE BE EARTHED!
WHEN THE GUN IS USED IN POTENTIALLY EXPLOSIVE
AREAS, THE AIR AND COATING MATERIAL LINES MUST –BE
ELECTRICALLY CONDUCTIVE (<1 MEGAOHM) AND MUST
BE EARTHED.

Connections

Push the automatic spray gun with borehole (6) over a
retaining bolt with a diameter of 6mm and fix in place
using screw (5)
VIBRATION AND RECOIL EFFECTS CAN OCCUR DURING
THE OPERATION OF THE AUTOMATIC SPRAY GUN.
ENSURE THAT THE GUN IS ADEQUATELY SECURED IN
PLACE.
Connect control air to item 4 ("ST")
Connect atomiser air to item 3 ("Z")
Material feed to item 1 ("M")
IF THE CONTROL AIR AND ATOMISER AIR CONNECTIONS
ARE INTERCHANGED, THIS CAN RESULT IN ACCIDENTAL
OPERATION OF THE AUTOMATIC SPRAY GUN.
ONLY USE HOSES WHICH CAN RELIABLY WITHSTAND THE
PRESSURES AND MECHANICAL AND CHEMICAL LOADS
DURING OPERATION!

Start-up

Switch on compressed air feed
Where applicable, switch on pump or pressure contai-
ner for coating material
Point automatic spray gun at a test surface
Start spraying process by switching on the control air
Adjust the spray profile as described below
Terminate spraying process by switching off the con-
trol air

Spray profile adjustment

A wide range of air and material nozzles in various sizes
are available to perform widely differing coating tasks.
There are four different nozzle families:
Circular jet (conical jet in front of the nozzle)
Flat jet (width-adjustable jet for flat-shaped application)
Rotary jet (a rotary pulse produces a highly "swirled"
spray jet; for difficult workpiece geometries (curves
around angular sections etc.))
http://www.krautzberger.com
Type: MIKRO 3
Full-cone rotary jet (swirling
spray jet created by a rotary
pulse; for difficult workpiece
geometries (undercuts etc.))
Take the following steps to adjust the spray profile:
Regulation of atomiser air pressure
Pressure of the coating material
Setting of needle stroke adjusting screw on the gun
Choosing the suitable nozzle size
Excessive air pressure not only leads to unnecessarily
high air consumption but also generates heavy misting of
the coating substance. It is advisable to first adjust the
spray profile by adjusting the air and coating material
pressure. If this does not produce a satisfactory profile,
you should experiment with different nozzle sizes.

Operational interruptions, cleaning

ALWAYS ADHERE TO THE INSTRUCTIONS IN THE SAFETY
DATA SHEET OF THE DETERGENT MANUFACTURER. DETER-
GENTS CAN BE HARMFUL TO HEALTH AND EASILY FLAMMA-
BLE!
THE AUTOMATIC SPRAY GUN SHOULD NEVER BE COMPLETE-
LY IMMERSED IN DETERGENT! THIS COULD DESTROY THE
GASKETS AND RINSE OUT THE LUBRICANT!
Switch off the control air to terminate the spraying pro-
cess
Interrupt coating material feed (switch off pump or
pressure container)
Clean automatic spray gun (in place of the coating
substance, spray a suitable detergent until it emerges
clear and without soiling).
Interrupt detergent feed
Briefly switch on control air feed to blow out detergent
residues.
Interrupt compressed air feed
Clean externally using a cloth soaked in detergent.

Maintenance

Please see our catalogue for accessories as well as avai-
lable air nozzles, material nozzles and needles. The cata-
logue and spare parts list are available on the Internet in
PDF format
happy to send you a spare parts list on request.
ALL MAINTENANCE WORK MUST BE PERFORMED BY SUIT-
ABLY QUALIFIED PERSONNEL!
BEFORE ALL MAINTENANCE WORK:
CLEAN SPRAY GUN, INTERRUPT COMPRESSED AIR FEED
AND COATING SUBSTANCE FEED; DISSIPATE ANY RESID-
UAL PRESSURE BY OPERATING THE AUTOMATIC SPRAY
GUN
Check wearing parts like gaskets, nozzles and needles at
regular intervals. The level of wear depends on the abra-
siveness of the coating substance used. Escaping air and
coating substance as well as the deterioration of the spray
profile are signs that parts are worn. Do not clean material
and air nozzles using hard, sharp-edged objects (for
cleaning of the nozzles, we recommend our brush set).
Order-No.: 2830
(www.krautzberger.com
2831 2808
ENGLISH
). We would also be
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