Page 81 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

MODULE 3: Intake and Exhaust Systems

EXERCISE 3.1: Servicing air filter/cleaner

Objectives

At the end of this exercise you shall be able to
• clean the filter element
• check the oil level in the air cleaner
• fit the air cleaner on the engine.

Requirements

Tools/Instruments Materials
• Trainee tools kit - 1 No. • Air filter element
• Cleaning tray - 1 No. • Diesel/Petrol
• Wire brushes - 1 No. • Waste cloth
Equipments/Machines • Soap solution
• Air cleaner gasket
• 4 cylinder petrol/diesel engine - 1 No. • Baniyan cloth - as reqd.
• Air compressor - 1 No. • Soap oil - as reqd.
• Lube oil - as reqd.

Job sequence

Servicing air cleaner (Dry type)
1 Unscrew the bolt or wing-nut of the air cleaner top cover with the help of a spanner or pliers.

2 Remove the top cover along with the filter element and gasket.
3 Loosen the nuts/screw of the clip fixing the air cleaner to the carburettor.
4 Remove the lower part of the air cleaner.
5 Repeat using a piece of cardboard, block the opening of the air intake on the inlet manifold/carburettor to avoid
entry of foreign material.
6 Clean the air cleaner housing and cover with cloth.
7 Inspect the filter element. If it is of paper type, replace the same.
8 If the element is of metal mesh, blow off the dust from inside the element with compressed air.
9 If the metal mesh element is heavily dirtied, wash it with kerosene, a household type detergent. 10.After
washing, rinse the detergent out of the element and dry it completely with compressed air.
11 Check visually the cleaned element for puncture or damage. Discard if it is found defective.
12 Check the gasket. If it is damaged or hard, replace it.
Installation

1 Place the new or old element in the lower housing.
2 Place the gasket ring on the element.
3 Place the top cover on the element.
4 Tighten the wing-nut or bolt and nut with the help of pliers/ spanners.

5 Test the air cleaner by starting the engine for smooth running.

64