Page 20 - Mechanic Diesel - TP - Malayalam

56 Perform Overhauling of crankshaft, - Description and function of Crank
Professional Trace, Test
Skill 50 Hrs; & Repair
Professional Cooling and
Knowledge; Lubrication
10 Hrs Systemof
engine.
Use of servicemanual for clearance shaft, camshaft,
andotherparameters (05hrs)
- Engine bearings-classification
57 Perform removing damper pulley, and location - materials used
timing gear/timing chain, flywheel, & composition of bearing
main bearing caps, bearing shells and materials- Shell bearing and their
crankshaft from engine (05hrs). advantages- special bearings
58 Inspect oil retainer and thrust surfaces material for diesel engine
for wear. (05 hrs) - Application bearing failure & its
59 Measure crankshaft journal for wear, causes-care & maintenance.
taper and ovality. (05hrs) - Crank-shaft balancing, firing order
60 Demonstrate crankshaft for filletradii, of the engine. (04Hrs)
bend & twist. (05hrs)
61 Inspect fly wheel and mounting - Description and function of the fly
flanges, spigot and bearing. (05hrs) wheel and vibration damper.
62 Check vibration damper for defect. - Crank case & oil pump, gears
(02hrs) timing mark, Chain sprockets,
63 Perform removing camshaft from chain tensioner etc.
engine block, Check for bend & twist - Function of clutch & coupling units
of camshaft. Inspection of cam lobe, attached to flywheel. (04 Hrs)
camshaft journals and bearings and
measure cam lobe lift. (05 hrs)
64 Fixing bearing inserts in cylinder
block & cap check nip and spread
clearance & oil holes & locating lugs fix
crankshaft on block-torque bolts-check
end play remove shaft-check seating,
repeat similarly for connecting rod
and Check seating and refit. (08 hrs)
65 Perform cleaning and checking of
cylinder blocks. (10 hrs) - Description of Cylinder block,
66 Surface for any crack, flatness - Cylinder block construction,
measure cylinder borefor taper &
ovality,clean oil gallery passage and - Different type of Cylinder sleeves
oil pipeline. (15hrs) (liner). (05 Hrs)
67 Perform reassembling all parts of
engine in correct sequence and torque
all bolts and nuts as per workshop
manual of the engine. (12hrs)
68 Perform testing cylinder compression,
Check idle speed. (08hrs)
69 Perform removing & replacing a cam
belt, and adjusting an engine drivebelt,
replacing an engine drive belt. (05hrs)
70 Perform practice on checking & top Need for Cooling systems
up coolant, draining & refilling coolant,
checking / replacing a coolant hose. - Heat transfer method,
(05 hrs) - Boiling point & pressure,
71 Perform test cooling system pressure. - Centrifugal force,
(04 hrs) - Vehicle coolant properties and
72 Execute on removing & replacing recommended change of interval,
radiator/ thermostat check the radiator - Different type of cooling systems,
pressure cap. (06 hrs)
(xviii)