Page 70 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 2.22: Inspect the flywheel and spigot bearing

Objectives

At the end of this exercise you shall be able to
• inspect the flywheel and mounting flange
• inspect the spigot bearing.

Requirements

Tools/Instruments Materials/Components
• Trainee’s tool kit - 1 No. • Tray - 1 No.
• Torque wrench - 1 No. • Cotton cloth - as reqd.
• Box spanner kit - 2 No. • Kerosene - as reqd.
• Bearing puller - 1 No.
Equipments/Machines

• Multi cylinder diesel engine - 1 No.

Procedure

Inspecting flywheel and mounting flange
• Clean the surface of flywheel.
• Visually check the flywheel (Fig 1) friction surface by using a straight edge (1) and feeler gauge (4).
• If flywheel warpage is more than the specified limit by the manufacturer, then recommend for machining.
• Ensure that flywheel thickness after machining has not become less than the specified thickness.

• Clean the crank shaft flange and flywheel mating surface.
• Visually check the flywheel mounting flange (Fig 2) for damage and cracks.

Fig 1 Fig 2

• Fix the flange bolts on the crankshaft

• Remove the spigot bearing from rear end of the crankshaft/flywheel
• Clean and inspect the bearing clearance and bearing noise [If wornout, replace with new bearing].
• Fit the spigot bearing in the socket of crank shaft rear end/Flywheel.
• Align the bearing with the help of dummy shaft.

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CITS : Automotive - Mechanic Diesel - Exercise 2.21