Airless DP6825 User Manual

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Operating Instruction

Product model: DP6825,6830,6835 diaphragm pump sprayer

DP6825 DP6830,6835

Please read and keep this manual, Read carefully before attempting to assemble, install, operate or maintain the

product described. Protect yourself and others by observing all safety information. Failure to comply with instructions

could result in personal injury and/or property damage! Retain instruction for future reference.

Table of Contents

Questions and Answers:

K
Kimberly GoldenAug 16, 2025
Why Airless DP6825 pump cycles but does not build up pressure?
- B
  Bailey MckayAug 17, 2025
  If your Airless Paint Sprayer's pump cycles but doesn't build up pressure, it could be due to several reasons. Ensure that the pump is primed. Check the inlet screen for clogs and ensure the suction tube is fully immersed in the paint. A leaking suction tube can also cause this issue; tighten the connection and inspect for cracks or leaks, replacing it if necessary. Additionally, a worn or obstructed prime/spray valve can be the cause; clean or replace the valve. Lastly, a stuck pump check ball can prevent pressure build-up; remove the outlet fitting and clean the outlet check ball.
P
Paula KeyAug 22, 2025
Why Airless DP6825 Paint Sprayer starts but does not draw paint?
- D
  Dawn RichAug 22, 2025
  If your Airless Paint Sprayer starts but doesn't draw paint, several issues could be the cause. First, the unit might not be primed or has lost prime, so re-prime it. Ensure the suction tube is fully immersed in the paint. Check for clogs in the suction set filter or hopper screen and clean them if necessary. A loose suction tube at the inlet valve can also prevent drawing paint; clean the connection and tighten it. Finally, a stuck inlet or outlet valve can be the culprit, so clean these valves and replace any worn parts. Also, check for worn or damaged inlet valve and clean or replace it.
J
joshuathomasAug 19, 2025
What to do if Airless DP6825 gun won't spray?

Airless DP6825 Specifications

General

Brand	Airless
Model	DP6825
Category	Paint Sprayer
Language	English

Summary

Warnings

Fire and Explosion Hazard

Safety precautions for flammable fumes, static electricity, and ignition sources.

Electric Shock Hazard

Safety precautions for grounding, power cords, and electrical setup to prevent shock.

Warnings - Continued

Skin Injection Hazard

Risks associated with high-pressure spray, injection injuries, and safe gun handling.

Moving Parts Hazard

Pressurized Aluminum Parts Hazard

Hazards related to incompatible fluids and aluminum parts, causing chemical reactions.

Toxic Fluid or Fumes Hazard

Hazards from toxic fluids/fumes, requiring protective measures.

Equipment Misuse Hazard

Personal Protective Equipment

Component Identification - Continued

Pressure Regulator

Airless Spray Gun

Dispenses fluid and atomizes the paint.

Operation

Trigger Lock

Pressure Relief Procedure

Steps to safely reduce pressure before servicing or transport.

Setup

Prepare the Paint

Check Electrical Service

Startup

Adjust Pressure Regulator Valve

Prime the System

Process of drawing paint through the system until only paint is dispensed.

Spraying Technique

Achieve Even Coating

Gun Angle and Distance

Tip Selection

Select Tip Hole Size

Choosing the correct tip hole size based on fluid type and sprayer capacity.

Choose Correct Tip

Factors to consider for selecting the best tip, including coating and fan width.

Cleanup

Lock Gun and Reduce Pressure

Initial steps for cleanup: locking gun, reducing pressure, and priming.

Circulate Cleaning Solution

Cleaning Valves

Removing and Cleaning Inlet Valve

Cleaning and Servicing Outlet Valve

Troubleshooting

Motor Does Not Run

Solutions for when the motor doesn't run despite power.

Paint/Water Frozen in Pump

Troubleshooting - Continued

Sprayer Does Not Draw Paint

Causes and solutions for the sprayer failing to prime or draw paint.

Paint Drops Away When Gun Opened

Pump Does Not Build Pressure

Troubleshooting steps when the pump fails to build pressure.

Spray Gun Won't Spray

Paint Dribbles or Spurts

Thermal Overload Tripped