Operation; Agitator Operation; Pressure Relief Procedure - Graco 25C528 Instructions - Parts Manual

Operation

Operation
Operation Operation
Personal injury, such as splashing in the eyes,
may result from pressure in the tank. Always follow
the Pressure Relief Procedure, page 12
opening the tank cover or fill port.
Personal injury or equipment damage may result
from lifting/falling heavy equipment. To avoid
personal injury or equipment damage:
• Do not lift the drum cover and agitator without
proper assistance.
• Do not walk or stand beneath a raised elevator.

Agitator Operation

Operation
Agitator Agitator Operation
1. Start the agitator by opening the air shutoff valve
(SV). Regulate the speed with the air regulator
knob (R).
2. Operate the agitator continuously when supplying
paints or other fluids to the system.
3. Stop the agitator by closing the air shutoff valve
or by reducing pressure with the air regulator
knob.
Finding the the Proper Proper Agitator
Finding Finding the Proper
NOTICE NOTICE NOTICE
To avoid damaging the equipment, do not operate
the agitator at a high speed for a long period of
time. Excessive agitator speed can cause foaming
of fluid (making the fluid unusable), vibration, and
increased wear on parts. Only agitate the fluid
enough to maintain even mixing.
Agitators are used to keep solids in suspension,
which assists in keeping solids from clogging the
siphon tube. If solids have settled in the container,
12
before
Agitator Speed Speed
Agitator Speed
use a shaker or some other device to thoroughly
agitate the fluid before installing and operating the
agitator.
Below is a general procedure to find the suggested
agitator speed. Consult your material supplier
for specific recommendations on recommended
agitation speeds.
1. Be sure ground wire is attached. See
Grounding, page 9
2. Fill the fluid supply container to about 3 or 4
inches (75 to 100 mm) above the agitator blade.
3. Open the air shutoff valve (SV).
4. Start the agitator by gradually turning the air
regulator knob (R) to increase air pressure until a
vortex begins to form in the paint.
5. Reduce the speed slightly, then fill the fluid
container.
When the container is full a vortex should not be
seen. Material should only be moving at a fast
enough speed to ensure adequate mixing.
6. Operate the agitator continuously while supplying
paints or other fluids to the system.
Pressure Relief Relief Procedure Procedure
Pressure Pressure Relief Procedure
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 before cleaning,
checking, or servicing the equipment.
1. Disconnect the air line.
2. Close the bleed-type air shutoff valve (A) to
relieve pressure to the air regulator.
.
3A4792C