Page 20 - Mechanic Diesel - TP - Punjabi

56 Perform Overhauling of crankshaft, Use - Description and function of Crank
Professional Trace, Test
Skill 50 Hrs; & Repair
Professional Cooling and
Knowledge; 10 Lubrication
Hrs
Systemof engine.
of servicemanual for clearance shaft, camshaft,
andotherparameters (05hrs)
- Engine bearings-classification and
57 Perform removing damper pulley, timing location - materials used &
gear/timing chain, flywheel, main bearing composition of bearing materials-
caps, bearing shells and crankshaft from Shell bearing and their advantages-
engine (05hrs). special bearings material for diesel
engine
58 Inspect oil retainer and thrust surfaces
for wear. (05 hrs) - Application bearing failure & its
causes-care & maintenance.
59 Measure crankshaft journal for wear,
taper and ovality. (05hrs) - Crank-shaft balancing, firing order
of the engine. (04Hrs)
60 Demonstrate crankshaft for filletradii,
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,
chain tensioner etc.
63 Perform removing camshaft from
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 - Description of Cylinder block,
cylinder blocks. (10 hrs)
- Cylinder block construction,
66 Surface for any crack, flatness measure - Different type of Cylinder sleeves
cylinder borefor taper & ovality,clean oil (liner). (05 Hrs)
gallery passage and oil pipeline. (15hrs)
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 & Need for Cooling systems
top up coolant, draining & refilling - Heat transfer method,
coolant, checking / replacing a coolant
hose. (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)