TRADE PRACTICAL (Professional Skills With Indicative Hours) :- Job no. & Name of the Practical
Following practical to be Practiced On Light & Heavy Vehicle:
99. Practice on removing the drop arm, Check and adjust the turning angle, align the drop arm and steering wheel with the front wheel. Check and correct toe-in. (08 Hrs)
100. Practice on removing steering wheel, steering gearbox. (09 Hrs)
101. Inspect and overhaul steering boxes, adjusting steering gear backlash, pre-load and adjust toe-in, toe-out, camber angle, castor angle, kingpin inclination and wheel run out. (08 Hrs)
WEEK. NO. 09
Reference Learning Outcome :- Plan & perform maintenance, diagnosis and servicing of Vehicle Control System. (Mapped NOS: ASC/N9437)
Duration :- Professional Skill 245 Hrs; Professional Knowledge 62 Hrs (for above learning out come)
TRADE THEORY (Professional Knowledge ) :-
Description and function of Steering columns, Rack-and-pinion gearbox, Helix, Variable ratio steering, Worm gearbox, Power Assisted steering, Steering process, Flow-control valve, Electric power assisted steering, Basic electric power steering operation
105. Carryout Servicing a steering system, (08 Hrs)
106. Practice servicing wheel bearings. (07 Hrs)
107. Perform Troubleshooting- Causes and remedy for abnormal wear of tyre, wheel wobbling, poor self centring, hard steering, and vehicle pulling to one side. (5 Hrs)
WEEK. NO. 10 & 11
Reference Learning Outcome :- Plan & perform maintenance, diagnosis and servicing of Vehicle Control System. (Mapped NOS: ASC/N9437)
Duration :- Professional Skill 245 Hrs; Professional Knowledge 62 Hrs (for above learning out come)
TRADE THEORY (Professional Knowledge ) :-
Suspension Systems:- Principles of suspension, Suspension force, Unsprung weight, Wheel unit location, Dampening. Types of suspension-Suspension systems, Solid axle, Dead axle,
Description, function and advantages of non independent suspension Independent suspension, Rear independent suspension, Rear-wheel drive independent suspension, electronically controlled air suspension (ECAS), Adaptive air suspension operation.
Types of springs – Description and function of Coil springs, Leaf springs, Torsion bars, Rubber springs.
Shock absorber types- Description and function of Hydraulic shock absorbers, Gas-pressurized shock absorbers, Load-adjustable shock absorbers, Manual adjustable-rate shock absorbers, Electronic adjustable-rate shock absorbers, Automatic load-adjustable shock absorbers
Front suspension types & components- Mc person Strut suspension, Short/long arm suspension, Torsion bar suspension
Rear suspension types & components-Rigid axle leaf spring suspension, Rigid axle coilspring suspension, Independent type suspension, Rigid non-drive suspension.
TRADE PRACTICAL (Professional Skills With Indicative Hours) :- Job no. & Name of the Practical
Following practical to be Practiced On Light & Heavy Vehicle :
108. Practice on visual Inspection of chassis frame for crack, bent and twists. (10 Hrs)
109. Carryout Overhauling and Inspection of shackle, leaf spring, front & rear suspension. (09 Hrs)
110. Practice on removing, inspection and assembling of shock absorber (09 Hrs)
111. Practice Lubricating a suspension system. (08 Hrs)
112. Perform Trouble shooting for Suspension system defects: Wheel hop, ride height (unequal and low), noises under operation, fluid leakage, excessive travel, bounce, worn dampers, worn joints/damaged linkages, vehicle “crabbing”. (09 Hrs)