Chemical Guys ACC503
Chemical Guys ACC503 Mr. Sprayer User Manual
Full Function Pressure Atomizer & Pump Sprayer
1. Introduction
This manual provides instructions for the safe and effective use of the Chemical Guys ACC503 Mr. Sprayer. This device is designed for applying detailing liquids, waterless washes, and other non-corrosive cleaning solutions without the need for external water hoses, buckets, or power cords.
Please read this manual thoroughly before operating the product and retain it for future reference.
2. Safety Information
Important: Always follow these safety guidelines to prevent injury or damage to the product.
- Do not use the Mr. Sprayer with degreasers or acidic products. These chemicals can damage the internal seals and components of the sprayer.
- Use only with non-corrosive detailing chemicals, such as quick detail sprays, waterless washes, and window cleaners.
- Always wear appropriate personal protective equipment (PPE) such as gloves and eye protection when handling chemicals and operating the sprayer.
- Keep out of reach of children and pets.
- Do not point the nozzle at people or animals.
- Ensure the cap is securely tightened before pressurizing the sprayer.
- Store the sprayer in a cool, dry place away from direct sunlight and extreme temperatures.
3. Product Components
The Chemical Guys ACC503 Mr. Sprayer consists of the following main parts:
- Pump Handle/Knob: Large, easy-to-grasp knob for quick and effortless pumping to build pressure.
- Trigger with Locking Feature: Allows for continuous spray without holding the trigger.
- Adjustable Nozzle: Provides control over spray pattern, from fine mist to jet stream.
- Comfortable Grip Handle: For optimal control during operation.
- Heavy-Duty 50 oz Bottle: UV resistant plastic bottle with pre-labeled measuring marks.
- O-Ring Gasket: Ensures an airtight seal for high-pressure operation.

- Large, easy to grasp knob for quick and effortless pumping
- O-Ring gasket creates airtight seal for high pressure detailing
- Locking trigger for an endless stream of product
- Fully adjustable nozzle ranges from fine mist to jet stream
- Comfortable grip handle for optimal control while working
- Removable nozzle for easy cleaning
- Heavy-duty 50oz UV resistant plastic bottle
4. Setup
- Unpack: Carefully remove all components from the packaging.
- Fill the Bottle: Unscrew the pump assembly from the 50 oz bottle. Fill the bottle with your desired non-corrosive detailing liquid. Use the pre-labeled measuring marks on the side for accurate dilution if necessary. Do not overfill.
- Secure Pump Assembly: Screw the pump assembly back onto the bottle, ensuring it is tightly sealed to prevent leaks and allow for proper pressurization.

5. Operating Instructions
- Pressurize the Sprayer: With the bottle filled and the pump assembly securely attached, pump the handle up and down repeatedly until resistance is felt and the bottle is pressurized. This typically requires several pumps.
- Adjust Nozzle: Rotate the red nozzle tip to adjust the spray pattern. Turn clockwise for a fine mist and counter-clockwise for a jet stream.
- Spray: Point the nozzle towards the target surface and press the trigger to begin spraying.
- Locking Feature: For continuous spraying, press the trigger and then slide the locking mechanism forward to keep the trigger engaged without constant pressure. Release the lock to stop spraying.
- Re-pressurize: If the spray pressure decreases, pump the handle again to re-pressurize the bottle.


6. Maintenance
- Cleaning After Use: After each use, especially when using concentrated or sticky solutions, it is recommended to rinse the bottle and pump mechanism with clean water. Fill the bottle with clean water, pressurize, and spray until the water runs clear.
- Nozzle Cleaning: The nozzle is removable for easy cleaning. If the spray pattern becomes inconsistent or clogged, unscrew the nozzle and rinse it thoroughly under running water. Use a small brush or pin to clear any blockages if necessary.
- Seal Inspection: Periodically inspect the O-ring gasket and other seals for wear or damage. Replace any worn seals to maintain proper pressure and prevent leaks.
- Storage: Store the sprayer empty and clean in a cool, dry place. Release any remaining pressure before storing.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No spray or weak spray |
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| Leaking from pump assembly |
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| Trigger sticks or does not return |
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8. Specifications
| Feature | Detail |
|---|---|
| Brand | Chemical Guys |
| Model Name | Mr. Sprayer Full Function Atomizer and Pump Sprayer |
| Model Number | ACC503 |
| Tank Volume | 50 Fluid Ounces (approximately 1.47 Liters) |
| Material | Plastic (Heavy-duty, UV resistant bottle) |
| Color | Clear |
| Product Dimensions | Approximately 5"W x 7"H |
| Item Weight | Approximately 7.1 ounces (200 Grams) |
| Power Source | Manual Pump |
| Special Features | Adjustable Nozzle, Locking Trigger |
| Recommended Uses | Cleaning Solution (non-corrosive detailing liquids, waterless washes, glass cleaners) |
9. Warranty and Support
For warranty information or technical support regarding your Chemical Guys ACC503 Mr. Sprayer, please refer to the official Chemical Guys website or contact their customer service department directly.
Official Website: www.chemicalguys.com
Please have your model number (ACC503) and purchase details available when contacting support.