Page 103 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

MODULE 5: Fuel Supply System (Diesel)

EXERCISE 5.1: Servicing dry and wet air cleaner and
charge air cooler

Objectives

At the end of this exercise you shall be able to
• service the dry type air cleaner
• service the oil bath type air cleaner.
• dismantle charge air cooler and inspect, clean test and refit into the engine.

Requirements

Tools/Materials Materials
• Trainee’s tool kit - 1 No. • Engine oil
• Kerosene
Equipments/Machines
• New air cleaner gaskets
• A light motor vehicle • Hose clamps
• Air compressor • New air filter element

Procedure

TASK 1: Service air cleaner (Dry type)
1 Open the bonnet.
2 Unscrew the bolt or wing-nut (1) of the air cleaner with the help of a Fig 1
spanner or plier (Fig 1).
3 Remove the top cover (4) with the filter element (5) and gasket (6).
4 Loosen the nuts/fixing clip (7) fixing the air cleaner on the inlet
manifold.
5 Remove the bottom case (8) of the air cleaner.
6 Clean the air cleaner housing and cover with cloth.
7 Inspect the filter element (5). If it is clogged, replace the same.
8 Blow off the dust from the inside element by compressed air.
9 If the element is heavily dirty, wash it with a household type
detergent
10 After washing rinse the detergent out of the element and dry it
completely
11 Check visually the cleaned element (5) for puncture or damage.
Discard if it is found punctured or damaged.
12 Check the plastic or rubber gasket ring (6) for smoothness which
acts as a gasket
13 Place the new or old element (5) in the lower housing (8).
14 Put the plastic gasket ring (6) on the element (5).
15 Put the top cover (4) on the element (5).
16 Tighten the wingnut (1) with the help of a plier.
17 Test the air cleaner by starting the engine for smooth running.

TASK 2: Service air cleaner (Oil bath type)
1 Open the bonnet of the vehicle.
2 Unscrew the bolt or wing-nut (1) on the top cover (2) by hand or plier (3) (Fig 1).
3 Remove the top cover (2) with the element (5) and gaskets (6 & 9).

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