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Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these instructions, 

and properly maintained, give you years of trouble free performance.

IMPORTANT:

 PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE 

THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR 
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.

1.  SAFETY

 

9

 Keep this product in good working order and condition, take immediate action to repair or replace damaged parts.

 

9

 Use approved parts only. Unapproved parts will invalidate the warranty. 

 

9

 Keep children and unauthorised persons away from the work area.

 

9

 Keep work area clean and tidy and free from unrelated materials.

 

9

 Ensure the work area has adequate lighting.

 

8

 

DO NOT

 use the kit to perform a task for which it is not designed.

 

8

 

DO NOT

 hold pump inlet against the skin whilst using the pump.

 

8

 

DO NOT

 allow untrained persons to use the kit.

 

8

 

DO NOT

 use whilst under the influence of drugs, alcohol or intoxicating medication.

 

9

 After use, clean equipment and store in a cool, dry, childproof area. 

 

‰

 

WARNING!

 

Brake fluid will damage paintwork. Any spillage should be flushed with water immediately.

 

‰

 

WARNING!

 

Brake fluid is flammable - keep away from sources of ignition, including hot surfaces e.g. exhaust manifold.

 

9

 Dispose of waste liquids in accordance with local authority regulations.

 

‰

 

WARNING!

 

DO NOT

 pollute the environment by allowing uncontrolled discharge of fluids.

 

9

 Always read and comply with the warnings on the brake fluid container.

 

9

 Wear eye protection and keep skin contact to a minimum. If brake fluid enters eyes rinse with plenty of water and seek medical advice. 

 

IMPORTANT:

 If swallowed seek medical advice immediately.

2.  INTRODUCTION

M

ulti-function diagnostic tool used to test a variety of essential engine and associated functions including fuel, ignition, transmission and 

emissions. Kit also includes reservoir, hoses and adaptors for bleeding brake and clutch systems on cars, commercials and motorcycles. Brass-

bodied vacuum pump features large, easy-to-read vacuum gauge calibrated in both inches and millimetres of mercury.

3.  CONTENTS

VS4021.V2 | Issue 2 (F,2,3)  26/02/19

Original Language Version

© Jack Sealey Limited

Refer to 

instructions

Wear protective

gloves

Wear eye 

protection

ITEM

PART No.

DESCRIPTION

1

VS402.V3-01

VACUUM PUMP WITH GAUGE

2A

VS402.V3-02A

RESERVOIR LID (FOR OPERATION)

2B

VS402.V3-02B

RESERVOIR LID (FOR TRANSPORT)

3

VS402.V3-03

RESERVOIR JAR

4

VS402.V3-04

560mm VACUUM HOSE

5

VS402.V3-05

80mm VACUUM HOSE

6

VS402.V3-06

HOSE ADAPTOR

7

VS402.V3-07

HOSE ADAPTOR ‘T-PIECE’

8

VS402.V3-08

HOSE ADAPTOR ‘STRAIGHT’

9

VS402.V3-09

BRAKE BLEED NIPPLE ADAPTOR

10

VS402.V3-10

UNIVERSAL CUP ADAPTOR

VACUUM TESTER & BRAKE BLEEDING KIT 

MODEL NO: 

VS4021.V2

Summary of Contents for VS4021.V2

Page 1: ...e fluid is flammable keep away from sources of ignition including hot surfaces e g exhaust manifold 9 9 Dispose of waste liquids in accordance with local authority regulations WARNING DO NOT pollute the environment by allowing uncontrolled discharge of fluids 9 9 Always read and comply with the warnings on the brake fluid container 9 9 Wear eye protection and keep skin contact to a minimum If brak...

Page 2: ... reading is between 16 to 21 inHg and steady 5 1 2 Manifold vacuum is also affected by altitude and it will drop approximately 1inHg for every 1000 feet above sea level so this must also be considered when assessing manifold vacuum actual readings 5 2 BASIC DIAGNOSTIC TESTS 5 2 1 Carry out the following procedures Step 1 Run engine until normal operating temperature is reached Switch engine off St...

Page 3: ...g that should be observed will vary slightly on different makes and models but as a general rule approximately 15inHg of vacuum should be created This should also be held for approximately 1 minute after engine shut down If this vacuum reading is not achieved or the vacuum drops off immediately with the engine shut down the fuel pump requires either overhaul or replacement 6 2 CARBURETTORS 6 2 1 T...

Page 4: ...etc and testing the function of these when using the VS4021 is extremely simple 7 2 2 Locate the solenoid to be tested and remove the line that goes to the component being tested Connect the VS4021 to the solenoid port fig 8 and start the engine With the system turned off there should be a zero gauge reading Now turn the system to the on position and a gauge reading equal to the manifold vacuum sh...

Page 5: ...ked lines Repair as required and retest 7 6 TESTING AUTOMATIC TRANSMISSION VACUUM OPERATED MODULATOR VALVES 7 6 1 Automatic transmissions are normally equipped with a vacuum operated modulator valve in order for the automatic transmission to detect engine loads and adjust shift points to suit 7 6 2 The VS4021 vacuum tester can be used to test both that the modulation valve diaphragm is serviceable...

Page 6: ... as brake fluid will be drawn into vacuum pump WARNING When brake bleeding and or fluid changing is complete test the action of the brake pedal to ensure that the brakes are working before attempting to drive the vehicle on the road and test the vehicle for satisfactory performance of the braking system 8 4 CLUTCH BLEEDING PROCEDURE 8 4 1 Refer to the relevant vehicle manufacturer s instructions f...

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