Page 126 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

MODULE 7: Engine Cooling System

EXERCISE 7.1: Checking and replacing the radiator

hoses

Objectives

At the end of this exercise you shall be able to
• check the radiator rubber hoses
• drain the coolant from the radiator
• replace the hoses and top up the coolant.

Requirements

Tools/Instruments Materials
• Trainee’s tool kit - 1 No. • Coolant - as reqd.
• Tray - 1 No. • Cotton cloth - as reqd.
• Radiator hose - as reqd.
Equipments/Machines • Hose clamp - as reqd.
• Running diesel engine - 1 No. • Grease - as reqd.
• Soap oil - as reqd.
• Funnel

Procedure

1 Locate the top and bottom hoses between the radiator and engine. (Fig 1)

Fig 1

2 Check swelling, cracking and leaking of the hoses.

3 Allow to cool the engine.
4 Keep a tray below the engine
5 Open the drain cock of radiator and drain water completley
6 Close the drain cock.
7 Remove all the clamps by using screw driver

8 Remove the top and bottom, of the hoses.
9 Clean the fittings spots with fine sand paper or emery cloth.
10 Check and compare the new hoses with removed hoses. (Make sure they are of correct length, diameter and
shape)

11 Apply sealing compound inside of the new hoses.

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