System Operation

Table 12: Dynamic Dosing Troubleshooting Guide

(for complete system troubleshooting, see Table 17 beginning on page 116)

Warning/Alarm Message

 

Solution

 

 

 

 

 

 

 

B Pressure Too Low (see FIG. 96)

•

Increase B pressure.

 

 

• Clean restrictor or use a larger size.

 

• Verify B valve is opening properly.

 

 

B Pressure Too High

• Increase A pressure or decrease B pressure.

 

• Use a smaller restrictor.

 

 

Off Ratio Low

• Increase A pressure or decrease B pressure.

 

• Use a smaller restrictor.

 

 

 

Off Ratio High

•

Increase B pressure.

 

• Clean restrictor or use a larger size.

 

• Verify B valve is opening properly.

 

 

 

 

Mix Manifold Valve Settings

To open dose or purge valves, turn hex nut (E) counter- clockwise. To close, turn clockwise. See Table 13 and

FIG. 99.

E

TI11581a

 

 

 

FIG. 99. Valve Adjustment

 

Table 13: Mix Manifold Valve Settings

 

 

 

 

Valve

Setting

Function

 

 

 

 

 

Dose (see

Hex nut (E) 1-1/4 turns out

Limits maximum fluid flow rate into integrator

 

FIG. 99)

from fully closed

and minimizes valve response time.

 

 

 

 

 

Purge (see

Hex nut (E) 1-1/4 turns out

Limits maximum fluid flow rate into integrator

 

FIG. 99)

from fully closed

and minimizes valve response time.

 

 

 

 

 

Shutoff (SVA

Fully open during Run/Mix

Closes component A and B ports to integrator

 

and SVB,

operation

during ratio check or meter calibration. Open

 

see FIG. 91)

 

ports during Run/Mix operation.

 

 

 

 

 

Sampling

Fully closed during Run/Mix

Open to dispense component A and B while

 

(RVA and

operation

calibrating meters. Do not open sampling

 

RVB, see

 

valves unless fluid shutoff valves are closed.

 

FIG. 91)

 

 

 

 

 

 

 

 

 

88

312779E

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Graco TI12552a, TI12553a important safety instructions Mix Manifold Valve Settings, Valve Setting Function
Page 87 Page 89

TI12553a, TI12552a specifications

The Graco TI12552A and TI12553A are highly regarded models in the realm of airless paint sprayers, designed to cater to both professional contractors and DIY enthusiasts. These sprayers are engineered for efficiency and versatility, making them ideal for a variety of painting tasks, including interior and exterior applications.

One of the standout features of the Graco TI12552A and TI12553A is their powerful motor, which delivers consistent pressure for a flawless finish. The motor is backed by a robust design, ensuring durability even during extensive use. This enables users to spray unthinned coatings, making the models suitable for a range of materials, including latex, stains, and sealers.

Both models boast Graco's innovative ProConnect technology, allowing for quick and easy pump replacements. This feature significantly reduces downtime and enhances productivity, as users can replace the pump on-site without needing specialized tools. The Graco TI12552A and TI12553A also feature a lightweight and portable design, making them easy to transport around job sites.

The ergonomics of these sprayers are commendable, with comfortable grips and well-placed controls, allowing for extended use without discomfort. Additionally, the integrated storage compartments enable users to keep accessories like sprayer tips and hoses organized and easily accessible.

Another significant characteristic of the TI12552A and TI12553A is their adjustable pressure control. This allows users to tailor the paint flow to suit specific projects, providing greater control over the application and ensuring optimal results. The models also feature a reversible spray tip, which is a convenient addition that allows for easy unclogging, minimizing interruptions during work.

For safety and maintenance, both models come equipped with a built-in suction filter that prevents debris from entering the system and damaging the pump. Regular maintenance is simplified by the easy-access fluid intake, which allows for straightforward cleaning.

In summary, the Graco TI12552A and TI12553A are advanced airless paint sprayers that combine power, convenience, and versatility. With their user-friendly features, ergonomic design, and innovative technologies, these sprayers are essential tools for anyone looking to achieve professional-quality finishes with ease. Whether it’s a residential project or larger-scale commercial job, the TI12552A and TI12553A stand out as reliable choices in the competitive landscape of paint sprayers.
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