Pressure Relief Procedure; Flushing - Graco E-Flo EP G Series Repair Parts

Pressure Relief
Procedure
Follow the Pressure Relief Procedure when-
ever you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
splashing fluid and moving parts, follow the Pressure
Relief Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Set START/STOP switch (ST) to STOP.
2. Push in SECURE DISABLE (SD) switch.
3. Open the back pressure regulator and all fluid drain
valves in the system, having a waste container
ready to catch drainage. Leave open until you are
ready to pressurize system again.
4. Check that pressure gauges on fluid supply and
return lines read zero. If gauges do not read zero,
determine cause and carefully relieve pressure by
VERY SLOWLY loosening a fitting. Clear obstruc-
tion before pressurizing system again.
3A3386E

Flushing

To avoid fire and explosion, always ground equipment
and waste container. To avoid static sparking and
injury from splashing, always flush at the lowest possi-
ble pressure.
• Flush before changing colors, before storing, and
before repairing equipment.
• Flush at the lowest pressure possible. Check con-
nectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the fluid
being dispensed and the equipment wetted parts.
1. Follow Pressure Relief Procedure.
2. Supply the appropriate flushing material to the sys-
tem.
3. Set pump to lowest possible fluid pressure, and start
the pump.
4. Flush long enough to thoroughly clean the system.
5. Follow Pressure Relief Procedure.

Pressure Relief Procedure

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