Page 234 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 14.3: Overhaul Gas Injection type CNG Kit

Components
Objectives

At the end of this exercise you shall be able to
• service and Test the sequential Gas Injection type CNG kit components - fuel temperature sensor, Fuel low
pressure sensor, fuel gauge pressure sensor, High pressure Fuel shut off solenoid valve, Low pressure shut
off valve, Fuel Injectors, CNG cylinder and hoses/pipe line.

Requirements

Tools/Instruments
• Petrol - as reqd.
• Mechanic tool kit, - 1 No. • Kerosene - as reqd.
• hand lamp - 1 No. • Thinner - as reqd.
• Go-No-Go gauge - 1 No. • Emery Sheet - as reqd.
• Multimeter - 1 No • Cleaning Brush - 1 No.
• Digital pressure gauge with adaptor - 1 No • Spare CNG Kit - 1 No.
Equipments/Machines • Diaphragm - 1 No.
• Set and overhauling kit - 1 No.
A light motor vehicle retrofitted CNG conventional kit • Soap Solution - 1 No.

Materials • Tafflon tape - 1 No.
• Gauge jumper wires - 1 Pair
• Safety glasses - 1 No. • Gloves - 1 Pair

Procedure
1 Stop Vehicle in plain surface and apply the brake

2 Open the Rear boot and check the manual shut-off valve
3 Open the Engine hood.

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