86
VERSION 10/2018
ORDER NUMBER DOC 2339321
.
8.7
SPRAYING MODE
Optimum painting results
are obtained if:
− the system parameters are set correctly;
− product data such as the mixing ratio and pot life correspond to the working product;
− the flushing program is defined;
− the supply pressures are constant;
− the pressure regulator for the A pump and B pump are set correctly. A is always around
10% lower than B;
− AIS is used.
Or without AIS: If the dosing valve (B-side) is set using the valve stroke such that as
many cycles are undertaken as possible (depending on flow rate and mixing ratio every
0.5–2 seconds). See the operating manual for the valves (order no. in Chapter
);
− The product pumps A and B can draw in the product perfectly and no cavitation occurs
(pump breaking through during down stroke). If necessary, the product must be fed
with a feed pump.
Optimum operation
is fulfilled under the following conditions:
− The flushing agent pressure for A and B is always present on the device, and the
product pressure for the A and B pumps.
− When filling the mixed product in the product hose, ensure that the nozzle is inserted
in the gun.
− The flushing process is performed without the nozzle in the gun.
− The level in the A and B product tanks and in the flushing product tank is checked
visually, in order to prevent unintended interruptions in the spray process.
Prerequisites
− At the start, all pumps must be filled with working product and the system must be
ready to start, as described in Chapter
− The nozzle is inserted into the gun. Gun secured.
− Operating manuals for the affected components must be read and understood.
Process
1.
Visual check: personal safety equipment, grounding and all devices ready to use.
2. If necessary, use [Stop] to move control unit into base position.
B
A
3. Press [Start] button on control unit.
4.
Filling process
: Pull the trigger on the gun with nozzle and spray into waste bucket.
The green start lamp on the control unit flashes during filling.
5. Fill until the green start lamp is lit up continuously and no more flushing agent or
unmixed product comes out (Only mixed product should come out).
6. Start the coating process right away and perform without interruption if possible.
Bear in mind the pot life of product at all times.
7. If necessary, adjust air pressure levels of high-pressure pumps. The hardener pressure
should be slightly higher than that of the A-component.
8. Once spraying work is complete, perform flushing (Chapter
) and/or pressure relief
(Chapter
