Graco 3A8693C, Instructions Manual

Page: 12 / 34

Operation
12 3A8693C
Operation
Pressure Relief Procedure
1. Close the bleed-type master air valve (B) to shut off
the air to the equipment.
2. Open outbound fluid valve to relieve fluid pressure
from the equipment.
a.
For simple transfer applications, open either
the fluid shutoff valve (K) or the fluid drain
valve (J).
b. For circulating applications, ensure that the
fluid shutoff valve (K) is closed and open the fluid
drain valve (J).
Flush Before Using Equipment
NOTE: The equipment was tested with water. If water
could contaminate your fluid, flush the equipment with
a compatible solvent before using the equipment.
Properly flush the equipment before use. Perform
Start
and Adjust the Equipment , page 12, and Flushing
and Storage , page 13.
Start and Adjust the Equipment
1. Confirm that the equipment is properly grounded.
See Grounding , page 7.
2. Check and tighten all fasteners, air connections,
and fluid connections before operating the
equipment. Replace worn or damaged parts as
needed.
3. Connect a flexible, conductive fluid supply line (G)
from the fluid to be pumped to the fluid inlet port (R).
4. Connect the flexible, conductive fluid outlet line (L)
to the fluid outlet port (S) and route the line to the
end container.
5. Close the fluid drain valve (J).
6. Turn the air regulator (C) to the lowest air pressure
setting and open the bleed-type master air valve (B).
7. If the fluid outlet line (L) has a dispensing device,
hold it open while continuing with the following step.
8. To prime the pump, slowly increase air pressure
with the air regulator (C) until pump starts to cycle.
Do not exceed the maximum operating air pressure
listed in the Technical Specifications , page 32.
Allow the pump to cycle slowly until all air is pushed
out of the fluid lines and fluid exits the fluid outlet
line (L).
Equipment Shutdown
At the end of each work shift, perform the Pressure
Relief Procedure , page 12.
Flush the equipment if necessary. See Flushing and
Storage , page 13.
Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as splashing fluid, follow the
Pressure Relief Procedure when you stop
dispensing and before cleaning, checking, or
servicing the equipment.
NOTICE
Firmly tighten all fasteners and connections to avoid
air or fluid leaks. To avoid equipment damage, do
not over-torque the fasteners on the equipment. See
Torque Sequence , page 29 .