Page 128 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 7.2: Testing the leakage in cooling system

Objectives

At the end of this exercise you shall be able to
• test the pressure of cooling system.
Requirements

Tools/Instruments Materials
• Trainee’s tool kit - 1 No. • Cotton cloth - as reqd.
• Cap pressure test kit - 1 No. • Pressure cap - as reqd.

Equipments/Machines • Coolant - as reqd.
• Multi cylinder diesel engine - 1 No.

Procedure

1 Remove the radiator cap

Before removing the radiator cap squeeze the upper radiator hose to check for pressure in the system.
Determine no pressure inside, otherwise slowly remove (Fig 1)

Fig 1

2 Make sure the radiator is full, and attach the pressure tester to the filler neck of the radiator (Fig 2).

3 Grasp the pressure tester and pump the plunger rapidly to build up pressure inside the system, like pumping
air into a tyre. (Fig 3)

Fig 2 Fig 3

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CITS : Automotive - Mechanic Diesel - Exercise 7.1