Troubleshooting

Troubleshooting

Mechanical/Fluid Flow

Perform Pressure Relief Procedure; page 13.

 

 

WHAT TO CHECK

WHAT TO DO

TYPE OF PROBLEM

If check is OK, go to next check

When check is not OK, refer to this column

 

 

 

 

For units with display:

Fault condition exists

Determine fault correction from table,

CODE XX is displayed.

 

page 27.

For units with no display:

 

 

ProGuard status light is

 

 

blinking or the light is off

 

 

and there is power to the

 

 

sprayer.

 

 

 

 

 

 

Pump output is low

Spray tip worn

Follow Pressure Relief Procedure on page

 

 

 

13, then replace tip. See your separate gun or

 

 

 

tip manual.

 

 

 

 

 

 

Spray tip clogged

Relieve pressure. Check and clean spray tip.

 

 

 

 

 

 

Paint supply

Refill and reprime pump.

 

 

 

 

 

 

Intake strainer clogged

Remove and clean, then reinstall

 

 

 

 

 

 

Intake valve ball and piston ball are

Remove intake valve and clean. Check balls

 

 

not seating properly

and seats for nicks; replace if necessary; see

 

 

 

pump manual. Strain paint before using to

 

 

 

remove particles that could clog pump.

 

 

 

 

 

 

Fluid filter, tip filter, or tip is clogged

Clean filter; see operation manual.

 

 

or dirty.

 

 

 

 

 

 

 

Prime valve leaking

Relieve pressure. Repair prime valve.

 

 

 

 

 

 

Verify pump does not continue to

Service pump; see pump manual.

 

 

stroke when gun trigger is released.

 

 

 

(Prime valve not leaking.)

 

 

 

 

 

 

 

Leaking around throat packing nut

Replace packings; see pump manual. Also

 

 

which may indicate worn or damaged

check piston valve seat for hardened paint or

 

 

packings.

nicks and replace if necessary. Tighten pack-

 

 

 

ing nut/wet-cup.

 

 

 

 

24

332916C

Page 24
Image 24
Graco Mark VII, Mark IV, Mark X, 795, 695 Troubleshooting, Mechanical/Fluid Flow, What to Check What to do Type of Problem

1095, 695, 1595, Mark IV, Mark VII specifications

The Graco Mark series is a renowned line of airless paint sprayers designed for professional contractors and serious DIY enthusiasts. Each model in this series brings its own unique features and technologies, catering to a range of applications and user preferences.

The Graco Mark VII is known for its high efficiency and durability. It features a powerful motor that allows for consistent pressure and delivery of a variety of coatings. This model is equipped with a proven piston pump technology, providing a smooth and reliable spray pattern. Its compact design makes it easy to transport, while enhanced filtration systems ensure a clean finish by minimizing clogs and maintaining a steady flow of paint.

Moving on to the Graco Mark IV, this model offers versatility for both small and medium-sized projects. The Mark IV’s lightweight design, combined with an adjustable pressure control, allows users to fine-tune their spray for different materials, from heavy latex paints to stains. The inclusion of 2-finger trigger control and ergonomic handle enhances user comfort during extended use. Additionally, the Mark IV comes with a range of tip sizes, accommodating various application needs.

The Graco Mark V takes performance a notch higher. It is equipped with advanced technology for increased efficiency and reduced overspray. The innovative SmartControl system enables operators to set the pressure for a perfect finish, whether they are working on detailed trim work or expansive wall surfaces. Furthermore, the Mark V’s robust build and high-capacity intake system make it ideal for larger projects, ensuring consistent output throughout.

The Graco 1595 model is designed for heavy-duty applications and is particularly favored for its reliable performance in tough conditions. It boasts a heavy-duty pump that can handle high viscosity materials without compromising the finish. Along with an adjustable flow rate, the durable construction ensures longevity, making it a worthwhile investment for contractors who frequently tackle extensive jobs.

Lastly, the Graco Mark X is another high-performance sprayer that stands out for its advanced technology integration. With features such as automatic pressure adjustment and a digital display, users can achieve a precise spray application with ease. The Mark X also emphasizes user safety with built-in safeguards, including automatic shut-off systems. Its larger capacity makes it suitable for commercial-grade projects, ensuring effective coverage and efficiency.

In summary, the Graco Mark series, including the Mark VII, Mark IV, Mark V, 1595, and Mark X, offers a range of options with varied features and capabilities. Whether for small DIY tasks or large-scale commercial jobs, there is a model to meet every need, ensuring professional-quality results and user satisfaction.