Sealey VS4021 Instructions Manual Download Page 6

NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.

IMpORTANT: 

no liability is accepted for incorrect use of this product. 

WARRANTy: 

Guarantee is 12 months from purchase date, proof of which will be required for any claim. 

INfORMATION:

 for a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.

01284 757500

[email protected]

www.sealey.co.uk

01284 703534

Web

sole uK Distributor, sealey Group, 

Kempson Way, suffolk Business Park

Bury st. Edmunds, suffolk,

IP32 7Ar

fig.14

fig.15

Original Language Version

© Jack sealey limited 

Vs4021     Issue: 1 - 08/06/12

Summary of Contents for VS4021

Page 1: ...unction 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 1 safety instruct...

Page 2: ...readings shown below are only examples of what may be observed It is important to remember that it is the action of the needle rather than the actual reading that is more important Varying engine types will run different manifold vacuum pressures depending on camshaft profile valve overlap timing etc so an exact vacuum reading cannot be specified The main criteria is that the needle reading is bet...

Page 3: ...f 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 5 2 Carburettors 5 2 1 There are many different types of vacuum control systems used on carburettors Using the VS4021 vacuum tester kit allows quick and accurate testing of these systems Listed below are just two examples of tests that can be car...

Page 4: ... connect the VS4021 vacuum tester fig 10 With the engine at normal operating temperature locate and feel the heater return hose With the heater tap in the off position this hose should be cold Now operate the vacuum pump to open the tap The gauge reading must hold If the tap is in working order the return hose will begin to heat If the hose does not begin to heat this indicates that the tap is fau...

Page 5: ...h the appropriate size bleeding attachment to the bleed nipple on the brake calliper of the first wheel normally nearest to master brake fluid reservoir 7 3 4 Operate vacuum pump until approximately 21inHg vacuum is created 7 3 5 Apply copper grease to the brake bleeding nipples before and after the brake bleeding procedure to reduce the possibility of seized or broken nipples when the brakes are ...

Page 6: ...s from purchase date proof of which will be required for any claim INFORMATION For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address including postcode 01284 757500 sales sealey co uk www sealey co uk 01284 703534 Web Sole UK Distributor Sealey Group Kempson Way Suffolk Business Park Bury St Edmunds Suffolk IP32 7AR fig 14 fig 15 Original La...

Reviews: