Finding The Proper Agitator Speed; Pressure Relief Procedure - Graco 25C528 Instructions - Parts Manual

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,
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 15.
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.
3A4792G
Agitator Speed Speed
Agitator Speed
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.
NOTICE NOTICE NOTICE
Keep the agitator upright. Do not lay it on its side
or upside down, or liquid may flow down the shaft
and into the gear reducer area.
Operation
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