MECHANIC DIESEL 1st year WEEK WISE NSQF SYLLABUS (SPILT UP)

WEEK. NO. 22

1. Reference Learning Outcome :- Overhaul & service Diesel Engine, its parts and check functionality. (Mapped NOS: ASC/N9403)
2. Duration :- Professional Skill 160 Hrs.; Professional Knowledge 25 Hrs.(for above learning out come)

TRADE THEORY (Professional Knowledge ) :- 

• • – Description & functions of different types of pistons, piston rings and piston pins and materials.
  • – Used recommended clearances for the rings and its necessity precautions while fitting rings, common troubles and remedy.
  • – Compression ratio.
  • – Description & function of connecting rod,
  • – importance of big- end split obliquely
  • – Materials used for connecting rods big end & main bearings.
  • Shells piston pins and locking methods of piston pins.

TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical

• 49. Perform Overhauling piston and connecting rod assembly. Use of service manual for clearance and other parameters. (05 hrs)
• 50. Perform Practice on removing oil sump and oil pump – clean the sump. (04 hrs)
• 51. Perform removing the big end bearing, connecting rod with the piston. (04 hrs)
• 52. Perform removing the piston rings; Dismantle the piston and connecting rod. Check the side clearance of piston rings in the piston groove & lands for wear. Check piston skirt and crown for damage and scuffing, clean oil holes. (05 hrs)
• 53. Measure -the piston ring close gap in the cylinder, clearance between the piston and the liner, clearance between crank pin and the connecting rod big end bearing. (03 hrs)
• 54. Check connecting rod for bend and twist. Assemble the piston and connecting rod assembly. (04 hrs)

WEEK. NO. 23

1. Reference Learning Outcome :- Overhaul & service Diesel Engine, its parts and check functionality. (Mapped NOS: ASC/N9403)
2. Duration :- Professional Skill 160 Hrs.; Professional Knowledge 25 Hrs.(for above learning out come)

TRADE THEORY (Professional Knowledge ) :- 

• • – Description and function of Crank shaft, camshaft,
  • – Engine bearings
  • -classification and location
  • – materials used & composition of bearing materials
  • – Shell bearing and their advantages
  • – special bearings material for diesel engine
  • – Application bearing failure & its causes-care & maintenance.
  • – Crank-shaft balancing, firing order of the engine.

TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical

• 55. Perform Overhauling of crankshaft, Use of servicemanual for clearance and other parameters(05hrs)
• 56. Perform removing damper pulley,timing gear/timing chain,flywheel,main bearing caps,bearing shells and crankshaft from engine(05hrs)
• 57. Inspectoilretainerandthrustsurfacesforwear.(05 hrs)
• 58. Measure crank shaft journal forwear,taper and ovality.(05hrs)
• 59. Demonstrate crankshaft for fillet radii, bend& twist.(05hrs)

WEEK. NO. 24 

1. Reference Learning Outcome :- Overhaul & service Diesel Engine, its parts and check functionality. (Mapped NOS: ASC/N9403)
2. Duration :- Professional Skill 160 Hrs.; Professional Knowledge 25 Hrs.(for above learning out come)

TRADE THEORY (Professional Knowledge ) :- 

• • – Description and function of the fly wheel and vibration damper.
  • – Crank case & oil pump, gears timing mark, Chain sprockets, chain tensioner etc.
  • – Function of clutch & coupling units attached to flywheel.

TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical

• 60. Inspect flywheel and mounting flanges, spigotand bearing.(05hrs)
• 61. Check vibration damper for defect.(02hrs)
• 62. Performre moving camshaft from engine block, 8Check for bend & twist of camshaft. Inspection of camlobe,camshaft journals and bearings andmeasure cam lobe lift. (05 hrs)
• 63. Fixing bearing inserts in cylinder block & cap check nipand spread clearance & oil holes & locating lugs fix crank shaft on block-torque bolts-check end play remove shaft-check `seating, repeat similarly for connecting rod and Checkseatingandrefit.(08hrs)

WEEK. NO. 25

1. Reference Learning Outcome :- Overhaul & service Diesel Engine, its parts and check functionality. (Mapped NOS: ASC/N9403)
2. Duration :- Professional Skill 160 Hrs.; Professional Knowledge 25 Hrs.(for above learning out come)

TRADE THEORY (Professional Knowledge ) :- 

• • – Description of Cylinder block,
    
  • – Cylinder block construction,
    

TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical

• 64. Perform cleaning and checking of cylinder blocks.(10 hrs)
• 65. Surface for any crack,flatness measure cylinder bore for taper & ovality, clean oil gallery pass age and oil pipeline. (15hrs)