Operation; Startup - Graco PR-X Setup - Operation - Repair

Operation

Startup

1. Locate the Power Switch (BM) at the rear of the
PR-X Control Box (J) and turn the power on.
2. With the air line (C) connected to the PR-X Machine
(H), go to the Advanced Screen 2 of the PR-X
Control Box (J), then select 'Inlet valve A' and 'Inlet
valve B' to turn on Inlet Valve A and B (AL or AM).
F . 38 Advanced Screen 2
IG
3. Adjust the Pressure Regulating Valve (F) so the air
pressure provided by the customer is at least 80 psi
(0.6 MPa, 6 bar), and no higher than 100 psi (0.7
MPa, 7 bar).
NOTE: If needed, add the pressure relief valve to reduce
pressure to 100 psi (0.7 MPa, 7 bar).
4. Perform Prime the System on page 44.
5. Perform the Ratio Check Procedure on page 45.
6. Install Static Mixer Package (AH).
7. Dispense several full stroke shots until the PR-X
Machine (H) is free of air and there is no leakage at
the Nose Piece (AJ) after shutoff.
3A7526B
NOTE: Very viscous, compressible materials may
continue to leak after system is primed. Reduce flow
rate as required to produce air-free dispensation. Very
thin materials may require tilting the valve greater than
45 degrees and dispensing shots until material is
air-free.
NOTE: Air entering the machine should be filtered.
Operation
43