Graco 25R128, Setup - Operation - Repair

Page: 46 / 92

Operation
46 3A7526B
Pressure Relief Procedure
Follow the Pressure Reduction Procedure
whenever you see this symbol.
1. Remove Static Mixer Package (AH) from MD2 Dis-
pense Valve (AE).
2. Close the Bleed-type Master Air Valve (G, page 7)
(required in the system).
3. Place a waste container below the MD2 Dispense
Valve (AE).
4. Go to System main screen of the PR-X control box
(J), then select ‘System Relief’.
5. Turn off the system power and the air supply when
the fluid pressure drops to ZERO.
Flush the Equipment
• Flush out old fluid with new fluid or flush out old fluid
with compatible solvent before introducing a new
fluid.
• Use the lowest possible pressure when flushing.
• All fluid components are compatible with common
solvents.
• To flush the entire system, circulate through the
MD2 Dispense Valve (AE), then drain the valve.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Reduction
Procedure when you stop dispensing and before
cleaning, checking, or servicing the equipment.
F
IG
. 42 System Main Screen
To avoid fire and explosion, always ground equipment
and waste container. To avoid static sparking and
injury from splashing, always flush at the lowest
possible pressure.