Draper Tools 35807 Instructions

ETHYLENE GLYCOL

ANTIFREEZE
TESTER

35807 – AFT-4B INSTRUCTIONS FOR USE

Read this manual in full before attempting to use the
product and retain it for later use.

1. Scope

This product can be used to determine the level of
protection provided by ethylene glycol vehicle coolant
solutions. Protection is dependent on the ratio of
water and antifreeze chemicals present in the solution.

Measuring range: -37 to -7°C

2. Health and Safety Instructions

Important: Refer to the vehicle manufacturer’s
manual or the appropriate Haynes workshop manual
before EVERY use.

WARNING! Antifreeze solution is toxic; ALWAYS

read the label. If it comes into contact with your

eyes or skin, immediately ush with plenty of water.

If it is swallowed, drink plenty of water. In all cases,
and seek medical attention immediately.

• ALWAY S wear suitable protective gloves and
goggles when working with antifreeze solution.

• Clear any spillage immediately and with care.

• Wash the tester thoroughly after every use.

• Keep out of reach of children.

Important: ALWAYS dispose of antifreeze and coolant
solutions in accordance with local regulations.

(DISC TYPE)

June 2022

3. Operation

Important: Read the Health and Safety information
before attempting to use this product. ALWAYS allow
the radiator to cool before removing the cap.

To avoid separation of the coolant solution, test the
solution while hot, after bringing the vehicle up to
temperature and then allowing the radiator to cool.

1. Run the vehicle engine to normal temperature if
necessary to mix fresh coolant.

2. Carefully remove the radiator cap using a cloth
and gloves.

WARNING! ALWAYS allow the radiator to
cool before opening it. The cooling system may
still be pressurised when opened and emit hot
steam, which can cause burns.

3. Insert the tester tube into the radiator reservoir

and squeeze the rubber bulb to draw uid into the

tester so that it is almost full.
Important: If the coolant solution is dirty or rusty,

drain, ush and rell the radiator, then clean the
tester and redraw the solution to the uid line.

4. Remove the tube from the reservoir and squeeze the

bulb lightly to expel any air bubbles from the uid.

5. Allow the discs to settle and observe the number of

discs that are oating (see below).

6. Flush the tester with hot soapy water and rinse clean
with warm water after use.

EN

Version 2

4. Disposal

At the end of its working life, dispose of the product responsibly and in line with local regulations.
Recycle where possible.

5. Explanation of Symbols

Read the instruction
manual

Wear protective goggles

UK Conformity Assessed

WARNING!/CAUTION

Wear protective gloves

European conformity

Number of oating discs Meaning Required action

0 Minimal or no protection

1 Protected to -7°C

2 Protected to -15°C

Replace the coolant with a higher
concentration of antifreeze

3 Protected to -23°C

No action required4 Protected to -31°C

5 Protected to -37°C

6

Helpline: [phone]

Website: drapertools.com

Draper Tools Limited, Hursley Road, Chandler’s Ford, Eastleigh, Hampshire, SO53 1YF, UK 0822

Unsafe solution – excessive antifreeze can
cause corrosion and increase the boiling
point of the solution.

Sales Desk: [phone]

Email: [e-mail]

Replace the coolant with a lower
concentration of antifreeze.

General Enquiries: [phone]