130
Member of Exel group
DRT582165110
A - 2023/03
Base circuit test
• Step 1:
Open the 2-gun block (activate the 2 outputs of the block).
• Open the guns.
• Fluid can flow out while the pressure drops and then it should stop.
If this is not the case, then it means that a color changer is not waterproof.
• If the color changers are sealed, proceed to step 2, otherwise make the necessary repairs.
The colour of the flowing product can identify the defective valve.
• Close the 2-gun block.
• Step 2:
Open a valve on the base side of the color changer.
• A pressure build-up occurs between the color changer and the 2-gun block that can cause momentary
pulses.
• If the 2-gun block is tightly sealed, then no product should flow out, so the flowmeter indicator A should be
steady (white or green).
However, if it is not sealed, then fluid will come out of the gun and the A flow meter light will flash.
Cata circuit test
• Step 1:
• Open the injection valve.
• Open the 2-gun block (activate the 2 outputs of the block).
• Open the guns.
• Fluid can flow out while the pressure drops and then it should stop.
If this is not the case, then it means that a color changer is not waterproof.
• If the color changers are sealed, proceed to step 2.
If no, make the necessary repairs.
The colour of the flowing product can identify the faulty valve.
• Close the injection valve.