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 

Keep this product in good working order and condition, 

take immediate action  

 

to repair or replace damaged parts.

 

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

 

Keep children and unauthorised persons away from the work area.

 

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

 

Ensure the work area has adequate lighting.

 

DO NOT

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

 

DO NOT

 hold pump inlet against the skin whilst using the pump.

 

DO NOT

 allow untrained persons to use the kit.

 

DO NOT

 use whilst under the influence of drugs, alcohol or intoxicating  

 

medication.

 

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.

  Dispose of waste liquids in accordance with local authority regulations.

 

WARNING! DO NOT pollute the environment by allowing uncontrolled 

 

discharge of fluids.

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

  Wear eye protection and keep skin contact to a minimum. If brake fluid  

 

enters eyes rinse with plenty of water and seek medical advice. If 

 

swallowed seek medical advice immediately.

Professional vacuum/pressure diagnostic tool helps identify a variety of faults 
on vehicle systems including fuel, ignition, transmission, emission and air 
conditioning/heating. Set also includes reservoirs, hoses and adaptors for 
bleeding brake and clutch systems. Features lightweight aluminium body with 
simple sliding sleeve for choice of pressure or vacuum testing. Large rubber 
easy-to-read gauge.

Contents:  Vacuum Pump, 2 x Fluid Container, Transfer Cap, Vacuum Hoses; 
1 x 65mm, 1 x 80mm, 1 x 90mm, 2 x 600mm, 14 x Assorted Connectors and 
blanking caps.

1. 

sAfeTy INsTRucTIONs

2. 

INTRODucTION & cONTeNT

InSTrUCTIonS For: 

VACUUM And pressUre 

test / brAke bleedInG UnIt

 

moDEL no: 

vs403.v2

 

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, AND 

cAuTIONs. use THIs 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.

fig.1

VS403.V2    Issue: 1 - 09/01/12

The use of a vacuum/pressure gauge is often overlooked when determining 
mechanical condition and carrying out fault diagnosis on internal combustion 
engines. monitoring actual manifold vacuum is invaluable when troubleshooting 
engine faults. This can only be carried out by using a good quality vacuum 
gauge and this, coupled with a hand-operated vacuum pump, also allows static 
testing of all types of vacuum operated systems.
Set out on the following pages are applications that the VS403.V2 vacuum and 
pressure tester kit can be used for, but it must always be remembered that 
these are examples only and reference to manufacturer’s service manuals 
should always be made for correct testing procedures and specifications. 
In addition to this, it is always recommended that additional tests, ie. compres-
sion tests, cylinder leakage tests, ignition timing checks etc. be carried out to 
confirm indications of vacuum/pressure gauge readings.

  3. APPLIcATIONs

fig.1

Original Language Version

Summary of Contents for VS403.V2

Page 1: ...f pressure or vacuum testing Large rubber easy to read gauge Contents Vacuum Pump 2 x Fluid Container Transfer Cap Vacuum Hoses 1 x 65mm 1 x 80mm 1 x 90mm 2 x 600mm 14 x Assorted Connectors and blanking caps 1 sAfeTy INsTRucTIONs 2 INTRODucTION cONTeNT InSTrUCTIonS For VACUUM And pressUre test brAke bleedInG UnIt moDEL no vs403 v2 Thank you for purchasing a Sealey product manufactured to a high st...

Page 2: ...be used for both pressure and vacuum testing by means of the sliding sleeve selector at the front end of the pump To select PRessuRe TesTING mode move the sliding sleeve away from the nozzle end of the pump until it makes contact with the main body See fig 1A above The hole indicated at X must be fully covered To select vAcuuM TesTING mode move the sliding sleeve away from the main body of the pum...

Page 3: ...t can be carried out example 1 Testing a Choke Break Diaphragm With the engine at normal operating temperature but not running disconnect the vacuum line to the diaphragm module Connect the VS403 V2 vacuum tester fig 5 and apply approximately 15 inHg of vacuum and wait for 30 seconds no drop in gauge reading should be observed With the vacuum still applied ensure that the choke butterfly is pulled...

Page 4: ...ese when using the VS403 V2 is extremely simple Locate the solenoid to be tested and remove the line that goes to the component being tested Connect the VS403 V2 to the solenoid port fig 10 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 should be observed If no reading exis...

Page 5: ...n fig 17 Allow brake fluid to be drawn until no air bubbles are visible in the brake fluid in the clear hose 6 Tighten the bleed nipple 7 remove the attachment from the brake nipple 8 repeat the process as necessary at each wheel 9 Check the master brake fluid reservoir regularly to ensure that the level does not drop too far and top up as necessary 10 Empty bleeder container regularly and do not ...

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