ITI's which provides courses for Lift and Escalator Mechanic

Sem. I

Sr. No.

Subjects of Study

Trade Practical

Trade Theory

1

Implementation in the shop floor of the various safety measures. Visit to the different sections of the Institute. Demonstration on elementary first aid.

Occupational Safety and Health Basic safety introduction, Personal protection. Basic injury prevention, Basic first aid, Hazard identification and avoidance, safety signs for Danger, Warning, caution and personal safety message

2

Demonstration of Trade hand tools. Identification of simple types- screws, nuts & bolts, chassis, clamps, rivets etc.

Identification of Trade-Hand tools Specifications, Uses and their care maintenance.

3

Practice in using cutting pliers, screw drivers, etc. skinning the cables and jointing practice on single strand and multi stranded conductor

Fundamental of electricity. Electron theory free electron, Fundamental terms, definitions, units and effects of electric current Explanation, Definition and properties of conductors, insulators and semi-conductors

4

Practice on soldering Measurement of Resistance. Determination of specific Resistance.

Solders, flux and soldering technique. Types & properties of resistors Specific Resistance.

5

Verification of Ohm’s Law, Verification of Kirchoff’s Laws. Verification of laws of series, parallel and combination circuit. 

Ohm’s Law, Resistors –Laws, Kirchoff’s Laws

6

Demonstration and identification of types of cables. Demonstration and practice on using standard wire gauge & micrometre.

Introduction of National Electrical Code Voltage grading of different types of Insulators, Temp. Rise permissible.

7

Identification and use of wiring accessories Practice on installation and overhauling common electrical accessories

Common Electrical wiring Accessories, their specifications in line with NEC

8

Grouping of Dry cells for a specified voltage and current. Practice on Battery Charging, Preparation of battery charging, Testing of cells, and Installation of batteries and Charging of batteries by different methods.

Chemical effect of electric current Principle of electrolysis. Faraday’s Law of electrolysis. Basic principles of Electroplating and Electro chemical equivalents

9

Allied Trades: Marking use of chisels and hacksaw on flats, sheet metal filing practice, filing rue to line

Introduction of fitting trade. Safety precautions to be observed Description of files, hammers, chisels hacksaw frames and blades

10

Drilling practice in hand drilling and power drilling machines.

Types of drills description and drilling machines, proper use, care and maintenance.

11

Practice in using snips, marking and cutting of straight and curved pieces in sheet metals

Description of marking and cutting tools such as snubs shears punches and other tools like hammers, mallets, etc. used by sheet metal workers.

12

Trace the magnetic field. Assembly / winding of a simple electro magnet

Magnetism - classification of magnets, methods of magnetising, magnetic materials. Properties, care and maintenance.

13

Determine the characteristics of RL, RC and RLC in A.C. Circuits both in series and parallel.

Alternating Current -Comparison and Advantages D.C and A.C. Related terms frequency

14

Practice on Earthing - different methods of earthing

Earthing - Principle of different methods of earthing i.e. Pipe, Plate etc. Importance of Earthing.

15

Determine the resistance by Colour coding Identification of active/passive components. Diodes-symbol - Tests - Construct & Test Half wave rectifier ckt. Full wave rectifier ckt. Bridge rectifier ckt.

Basic electronics- Semiconductor energy level, atomic structure ‘P’ type and ‘N’ type. Type of materials –P-N-junction. Classification of Diodes – Reverse and Forward Bias, Heat sink. Specification of Diode PIV rating. Explanation and importance of D.C. rectifier circuit. Half wave, Full wave and Bridge circuit. Filter circuits-passive filter. 

Project Work

Sem. II

Trade Practical

Trade Theory

1

Basic Civil/drafting Work

Study of Definition and types of projections. Methods of projection as per IS. Projection of points, lines, planes and solids.

2

Drawing different types of foundation Footing, piles, grillages Foundation raft & well foundation. Demonstrate & use of spirit level, water level, plumb bob

Foundation: Types, Purpose & causes of failure of foundation Drawing of footing foundation, excavation, and shoring & simple machine foundations. 

3

Use of Lifting Tools and Simple Welding

Measuring tools, Lifting tools, Introduction to basic Fabrication work

4

Practice of arc welding;  Simple project job as per drawing

Process of welding, brazening, Concept of different types of Welding & Types of electrode

5

Indian Electricity Rules

Study of Indian Electricity rules pertaining to operation, construction and maintenance of Lifts and Escalators

6

Basic Panel wiring

Study of Types of wires and cables used in lift, wiring procedures and techniques, types of switches for control & power wiring

7

Mounting/ fixing of MCB, MCCB; Fixing Bus bars; Tapping connections from Bus bars

Specification & ratings of MCB, MCCB, ELCB, ACB; bus bars size and spacing; Procedure for control panel erection

8

Identification of different types of Transformer; Connection of Control transformers; Use of C.T. & P.T.

Study of Single Phase Transformer & Types and Classification

9

Basic Electrical motor

Principle of DC Generation; construction and types of DC motors

10

AC motors and starting methods

Study of Working principle, construction of A.C. motors single phase motors,

11

Connecting and Testing of three phase induction motor

-do-

12

AC/DC Drives

Study of Types of AC/DC drives; Functions and block diagram

13

Connection and operation of lift motor through VVVF drives; speed control through drive; practice connection and operation of lift motor through drive

Applications of AC/DC drive; basic parameter setting in variable voltage variable frequency(VVVF) drive

14

Electronic Power Devices

Types of electronic power devices; Working principle of SCR, DIAC & TRIAC 

15

Demonstration of simple Power control circuits by UJT, FET, JFEET, MOSFET, IGBT

Working principle UJT, FET, JFEET, MOSFET, IGBT; biasing and FET as amplifier and switch 

Project Work

Sem. III

Trade Practical

Trade Theory

1

Personnel safety

Study of Importance of personnel safety in lift

2

Operation of lift

Study of Components of elevator; Types of elevator; capacity, speed of the elevator

3

Practice Fixing of template; practice Fixing of bracket; Practice Fixing of guide rail 

Methods and procedure for Template Setting; Hoist way measurement, Bracket measurement & fixing.

4

Demonstrate counter weight, buffer, car frame , emergency stop switch 

Concept of counter weight, buffer, car frame , emergency stop switch

5

Demonstration of over speed Governor, safety circuit, overhead clearance, car bottom clearance

Elevator safety (over speed Governor, safety circuit, overhead clearance, car bottom clearance)

6

Type, construction and parts of lift

Study of Types of elevator – passenger elevator ,service elevator, freight elevator

7

Practice fixing Guide rails, reed switch, magnet; observe running clearance 

Types and procedure of fixing Guide rails, reed switch magnet; Importance of Running clearance

8

Basic Construction and Parts of Escalators

Study of types of Escalator arrangements – parallel, multiple parallel, cross over; typical applications; moving walkways and applications

9

Fixing Different covers and panels; Fixing barriers and caution plates 

Covers, Decking, trim plates, panels, etc.; Barriers, barrier assembly and caution plates

Project Work

Sem. IV

Trade Practical

Trade Theory

1

Functional Operation of Lift

Study of Various systems of control of lift and their utility; rheostatic control and variable voltage control

2

Safety Functions: Housekeeping practice; practice of safe working in lift – Electrical safety, Safety while working on live controller. Safety while working on top of car & lift pit.

Safety of maintenance personnel - Safe use of hand &power tools. Proper method of hand lifting rigging and hoisting.

3

Selection And Installation of Lifts: Measure and adjust clearance between wall and car; Measure and adjust clearance between adjacent car

Study of Size and shape of car; Clearance and allowances between Car and the wall. Space required for the erection of lift of different capacity.

4

Maintenance Procedure: Checking of physical location of all components of lift as per drawing

Concept of lift maintenance. Methods / Types of maintenance. Preparing check List. 

5

Lubrication: Practice draining out old grease and oils; Refilling oil dashpots and grease cups. Lubrication on car gate, cam Bellows, buffer, rope, guiderail etc.

Types of lubricants, its properties and use in lifts. Importance of lubrication. Lubrication during installation

6

Testing of Lift

Study of effects of faulty power supply, i.e. single phasing, loose contact, improper voltage etc

7

Familiarization with Auto Rescue Device operating system and connection to lift System

Explanation and function of Auto rescue device (ARD)

Project Work