Hazet 4800-41 Manual

Hazet Måleudstyr 4800-41

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Side 1/1

h 4800-41

Cylinder Head Leakage Tester

(CO

leak detector)

Dear Customer,

You have made a good choice. With a HAZET Cylinder Head Leakage

Tester, you have a quality tool in your hands. Directions for use are

given below.

First, some general information –

Testing can be carried out at any time, whether the engine is hot or

cold. As a rule, no preparation of the vehicle for a routine test is

required. Nevertheless, if the engine has cooled over a prolonged

period of time, fresh air will have been drawn into the cooling system,

diluting any combustion gas which may be present in the air cushion.

The Cylinder Head Leakage Tester permits the early,HAZET 4800-41

rapid and reliable detection of leaks between the cooling system

and the combustion chambers of all coolant cooled petrol, diesel

and LPG engines.

Any combustion gas which leaks into the cooling system through a

defect in the cylinder head gasket, sealing faces, hairline cracks,

cylinder liners or even porous parts of the cylinder head, collects in the

air cushion in the radiator or header tank.

The enables the air cushion to be tested for combustion gas (increased COHAZET 4800-41

content). Leaks can

also be detected subsequently.

The blue detecting fluid indicates whether the in-drawn air contains an increased level of carbon dioxide by changing

colour from blue green yellow, first to , then to . An increased CO

content in the cooling system indicates a leak

between the combustion chamber and the cooling system, i.e. the presence of combustion gas in the cooling

system.

The proven prevents erroneous diagnoses, as follows. In the first chamber, alkaline‘HAZET dual chamber system’

particles are absorbed while, in the second, a leak resulting in an increased content of CO

gas (combustion gas)

will give rise to a change in the colour of the fluid from blue to yellow.

TEST PROCEDURE:

쎲Half-fill both chambers of the tester with reactive fluid.

쎲Remove the radiator cap and install a special adapter or universal adapter.HAZET 4800-4 HAZET 4800-3

쎲Connect the tester HAZET 4800-41.

쎲Run the engine.

쎲After a short time, bubbles will form in both chambers.

쎲In the first chamber, impurities (e.g. coolant, etc.) may undergo a change of colour. The actual result, however, can

only be determined from the second chamber in which the through-flowing gas alone is able to change colour.

TEST RESULTS:

쎲 쑺Fluid stays blue No leak

쎲 쑺Fluid changes from blue to yellow (petrol engines) Leak in cylinder head gasket

or from blue to green (diesel engines) or cylinder head

The fluid can be restored to its original colour (blue) simply by blowing through with compressed air. It can continue to

be used until it no longer reverts to its original colour.

Suggested uses:

As a routine test at every service and before replenishing antifreeze. To check repairs, e.g. after pronounced

overheating of the engine as a result of a leak or defect in the water pump, V-belt, radiator hose, etc. In combination

with a pressure test for externally escaping leaks (max. possible test pressure, 1 bar); this also reveals leaks which

would otherwise only occur at a very high combustion pressure or when the vehicle is being driven.

Leak detector maintenance:

The non-return valve in the connector may become clogged with coolant and contamination. For cleaning purposes,

wash the chambers out with white spirit and blow compressed air through the connector from below.

*) CAUTION - RISK OF SCALDING: If the engine is hot, remove the cap slowly and allow the pressure to dissipate.

We reserve the right to alter technical specifications without notice.

4800-41engl. 08.2001

HAZET-WERK

HIGHEST TECHNOLOGY IN TOOL MANUFACTURE SINCE 1868

Produkt Specifikationer

Mærke:	Hazet
Kategori:	Måleudstyr
Model:	4800-41

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