Page 310 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 17.3: Servicing of CRDI Injector

Objectives

At the end of this exercise you shall be able to
• dismantle crdi injector
• clean and inspect crdi injector components
• assembling of crdi injector
• testing of crdi injector.

Requirements

Tools/Equipments Materials

• Trainees Tool kit - 1 No. • CRDI injector - as reqd.
• CRDI Injector Holding Fixture - 1 No. • Cotton cloth - as reqd.
• Metal tray - 1 No. • Diesel - as reqd.
• Torque wrench (0...25 Nm) - 1 No. • Ultrasonic cleaning Solution - as reqd.
• Torque wrench (25...100 Nm) - 1 No. • Calibration Oil - as reqd.
• Torque wrench (40...200 Nm) - 1 No.
Machines

• CRD-I Injector Testing Machine - 1 No.
• Nozzle tester with adaptor - 1 No.
• Ultrasonic Injector Machine - 1 No.

Procedure

Test and repair Pre instructions.

Common rail injectors 1. and 2. generation are restricted to nozzle replacement.
On nozzle replacement, a new retaining nut must always be fitted.
The inlet connector with packing plate can be replaced in the event of leaks in the area of High- pressure
connection.

Repair is not possible in the case of a micro-encapsulated inlet connector.
Repair is not possible in the event of leakage at the injector connections or injector body.

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CITS : Automotive - Mechanic Diesel - Exercise 17.2