Shutdown The System - Graco E-Flo iQ Operation Manual

Shutdown the System

Shutdown the System
To prevent damage to the pump from rust, never
leave water or water-based fluid in a carbon steel
pump overnight. If you are pumping a water-based
fluid, flush with water first. Then flush with a rust
inhibitor, such as mineral spirits. Relieve pressure,
but leave the rust inhibitor in the pump to protect
parts from corrosion.
1. Follow the Pressure Relief Procedure on page 46.
NOTE: If using a Tandem system, perform these steps
on both units.
2. Set the Ram Director Valve (BC) to DOWN, and
lower the Ram (AA) to the desired position for
shutdown.
3. Set the Ram Director Valve (BC) to neutral.
4. Stop the Pump at the bottom of the stroke to prevent
fluid from drying on the exposed displacement rod
and damaging the throat packings. See Pump
Maintenance Screen 1 on page 49 for information
about manually moving the pump using the ADM.
5. Always flush the Pump before the fluid dries on the
displacement rod. See the E-Flo iQ Supply System
Operation manual for steps to flush the pump.
48
NOTICE
333587B