Troubleshooting

Troubleshooting

Problem

Cause

Solution

 

 

 

Pump does not run.

Closed dispense valve.

Pump only runs with valve open.

 

 

 

 

Pressure too low.

Increase supply pressure using a

 

 

pressure adjusting valve.

 

 

 

 

Insufficient hydraulic fluid supply.

Check hydraulic supply. Adjust to a

 

 

maximum of 3 gpm (11 lpm) flow.

 

 

 

 

Clogged fluid outlet line, intake

Relieve pressure, page 5. Check.

 

valve, dispense valve, suction line.

Clear obstructions.

 

 

 

 

Reciprocator damaged.

Repair.

 

 

 

Pump speeds up or runs erratically.

Pump piston and/or intake valve

Relieve pressure, page 5. Check

 

worn.

and repair.

 

 

 

 

Empty supply container.

Refill and repair. Do not allow pump

 

 

to run dry. Monitor closely or use a

 

 

low-level cutoff valve.

 

 

 

Pump runs but output low on up

Pump piston and/or intake valve

Relieve pressure, page 5. Check

and/or down stroke.

worn.

and repair.

 

 

 

Pump run but output low on both up

Insufficient hydraulic fluid supply.

Check hydraulic supply. Adjust to

and down strokes.

 

maximum 3 gpm (11 lpm) flow.

 

 

 

 

Pressure too low.

Increase supply pressure using a

 

 

pressure adjusting valve.

 

 

 

 

Clogged fluid outlet line, intake

Relieve pressure, page 5. Check.

 

valve, dispense valve, suction line.

Clear obstructions.

 

 

 

Excessive weepage from weep tube

Worn throat packings.

Repair.

(B), page 4.

 

 

Worn displacement seal.

Repair.

 

 

 

 

Hydraulic oil leaks from fittings in

Fittings 1, 5, 58, (Parts, page 23),

Tighten the self-sealing fittings. If

the upper or lower reciprocator

are loose, or their o-rings are worn

leaking persists, change o-rings.

blocks (31, 32) [Parts page 23].

or damaged.

 

 

 

 

8

312350K

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Graco 312350K important safety instructions Troubleshooting, Problem Cause Solution, Relieve pressure, page 5. Check
Page 7 Page 9

312350K specifications

The Graco 312350K is an advanced paint sprayer designed to cater to both DIY enthusiasts and professional users. Known for its impeccable performance and versatile applications, the Graco 312350K stands out in the world of paint equipment. One of its primary features is its Airless technology, which allows for a smooth finish with minimal overspray, making it ideal for a variety of projects, including indoor and outdoor painting tasks.

The sprayer is equipped with a powerful motor that ensures a consistent flow of paint, providing reliable coverage across surfaces. Its adjustable pressure control feature allows users to easily customize the flow rate according to the type of paint being used and the surface being covered. This versatility is crucial for achieving the best results, whether you are working with stains, primers, or topcoats.

Another notable characteristic of the Graco 312350K is its lightweight design, which enhances portability and ease of use. The integrated cart design allows for easy maneuverability around job sites, making it simple to transport from one area to another without hassle. Additionally, the sprayer comes with a premier RAC X tip, which is specifically designed for quicker and easier spraying while ensuring an even application.

In terms of maintenance, the Graco 312350K is designed for convenience. It features a quick-change filter that helps keep the paint running smoothly, reducing clogs and interruptions during the job. This means that users can focus more on their work and less on upkeep and troubleshooting.

The sprayer also accommodates a variety of paint types, including latex, oil-based paints, and stains, showcasing its flexibility for different projects. With a high painting capacity, the Graco 312350K is particularly suited for larger areas, saving time while still delivering a professional-quality finish.

Overall, the Graco 312350K is an exceptional tool that combines advanced technology with user-friendly features, making it an excellent choice for anyone looking to achieve a flawless paint job. Whether for home improvement projects or professional applications, the Graco 312350K delivers reliability, efficiency, and quality.
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