Hazet 4793/3 Manual

Hazet Ikke kategoriseret 4793/3

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Side 1/2

h 4793/3

Cylinder Head Tightness Tester (CO

leak detector)

Dear Customer,

You have made a good choice. With a HAZET Cylinder Head Tightness Tester, you

have a quality tool in your hands.

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 HAZET CO

Leakage Tester permits the early, 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 HAZET Leakage Tester enables the air cushion to be tested for combustion gas

(increased CO

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 , first to , then tochanging colour from blue green

yellow. 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"HAZET dual chamber system"

follows. In the lower chamber, alkaline particles are absorbed while, in the upper, 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.

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.

Preparation of the Tester, filling and initiation

There are two chambers in the HAZET metal box:

– blue fluid – Reaction fluid HAZET 4793-2

– light blue fluid – Flushing fluid HAZET 4793-3

Remove the two chambers from the Tester by pulling and turning. Pour the blue reaction fluid into

the lower chamber up to the marking line (12 mm). Put the upper chamber on the lower one and

fill it up with the blue reaction fluid up to the line as well. Now put on the upper part with the

suction ball. The Tester is now ready for use.

lower

chamber

upper

chamber

upper part

HIGHEST TECHNOLOGY IN TOOL MANUFACTURE SINCE 1868

Technical data are subject to change

Produkt Specifikationer

Mærke:	Hazet
Kategori:	Ikke kategoriseret
Model:	4793/3
Vægt:	1673 g
Produktfarve:	Black, Blue
Pakkebredde:	128 mm
Pakkehøjde:	58 mm
Oprindelsesland:	Tyskland
Længde:	320 mm