Product Overview
This document provides instructions for the Draper Antifreeze Tester (Disc Type), model 35807-AFT-4B. It is designed to determine the level of protection provided by ethylene glycol vehicle coolant solutions by measuring the ratio of water and antifreeze chemicals.
Scope of Use
The tester measures the protection range of coolant solutions from -37°C to -7°C. It is essential for maintaining optimal engine performance and preventing freeze damage.
Health and Safety Instructions
Antifreeze solution is toxic. Always read the product label. In case of contact with eyes or skin, flush immediately with plenty of water. If swallowed, drink water and seek medical attention. Always wear protective gloves and goggles when handling antifreeze. Ensure proper ventilation and clean up any spills promptly. Dispose of used coolant solutions according to local regulations.
WARNING: Always allow the radiator to cool before opening the cap, as the system may be pressurized and emit hot steam.
Operation Guide
- Ensure the vehicle engine is at normal temperature to mix the coolant.
- Carefully remove the radiator cap using a cloth and gloves.
- Insert the tester tube into the radiator reservoir and use the rubber bulb to draw fluid until the tester is almost full.
- Remove air bubbles by gently squeezing the bulb.
- Allow the internal discs to settle and count the number floating.
- Refer to the symbol explanation to interpret the results and determine the required action for the coolant concentration.
Disposal
At the end of its working life, dispose of the product responsibly and in line with local regulations. Recycle where possible.
Interpreting Results
| Number of floating discs | Meaning | Required action |
|---|---|---|
| 0 | Minimal or no protection | Replace the coolant with a higher concentration of antifreeze |
| 1 | Protected to -7°C | No action required |
| 2 | Protected to -15°C | |
| 3 | Protected to -23°C | |
| 4 | Protected to -31°C | No action required |
| 5 | Protected to -37°C | No action required |
| 6 | Unsafe solution – excessive antifreeze can cause corrosion and increase the boiling point of the solution. | Replace the coolant with a lower concentration of antifreeze. |
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