Page 65 - CTS - Mechanic Diesel - TP
P. 65
MECHANIC DIESEL - CITS
EXERCISE 2.21: Overhauling of crankshaft
Objectives
At the end of this exercise you shall be able to
• use of service manual
• check the clearance of crankshaft.
Requirements
Tools/Instruments Equipments/Machines
• Trainee’s tools kit - 1 No. • Work bench - 1 No.
• Engine manual book - 1 No. • Multi cylinder engine - 1 No.
• Soft harmer - plastic - 1 No. Materials/Components
• Pry bar - 1 No.
• Feeler gauge - 1 No. • Tray - 1 No.
• Plastic gauge - 1 No. • Banian cloth - as reqd.
• Torque wrench - 1 No. • Soap oil - as reqd.
• Dial gauge - 1 No. • Lube oil - as reqd.
• Inside micro meter - 1 No. • Shell bearing - as reqd.
Procedure
• Remove the bearing cap bolt (10). (Fig 1)
• Remove the bearing caps (8).
Note: The crankshaft bearing caps are marked with stamped numbers. Remove the bearing cap
from the vibration damper side.
• Remove the crankshaft bearing caps (9) and lower thrust bearings (7).
• Remove the lower bearing shell (6) from the bearing cap (9). (Fig 2)
Fig 1 Fig 2
• Remove the crankshaft (5). (Fig 3)
• Remove the upper thrust bearings (4). (Fig 4)
• Remove the upper bearings shells (3) from crankcase.
• Thoroughly clean the oil gallery.
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