Industrial Mechanic (Millwright) Level 2 - Province of Manitoba

Rev. September 2005

Industrial Mechanic (Millwright) Level 2

1 Rev. September 2005

Industrial Mechanic (Millwright)

Unit: B7 Lubrication Practices Level: Two Duration: 20 hours Theory: 15 hours Practical: 5 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) Apprentice with the knowledge and skills necessary to describe the properties of lubricants and to select the proper lubrication methods and lubricant. Material covered includes:

• Terminology • Properties of lubricants • Classification

Percent of Objectives and Content: Unit Mark (%)

1. Identify the purpose and use of lubricants. 20% a. Sliding, rolling and fluid friction

2. Define lubrication related terminology. 15%

a. Boundary and full-film lubrication b. Hydraulic lock

3. Describe various lubrication systems. 15%

a. Once through lubricating systems b. Enclosed lubricating systems

• Ring oiler lubrication • Splash lubrication • Oil bath lubrication • Recirculating lubrication • Pressurized system • Oil mist lubrication

c. Visual oil quality checks d. Pour point and flash point

4. Describe different properties of lubricants. 20%

a. Adhesion and cohesion b. Oiliness c. Viscosity and its effects on lubrication d. Viscosity measurement e. Viscosity index f. Oil wedge theory of lubrication g. Additives and inhibitors

• Air, water and load capacity control h. Properties of grease i. Grease types

• Simple, mixed and complex soap greases • Extreme pressure grease


j. Penetration numbers for grease k. Dropping point l. Grease lubricating systems

• Hand packing bearings • Greasing with a grease gun • Greasing with a spring compression cup • Automatic lubricators • Lubricating open and enclosed gears

m. Oil and grease comparison n. Cutting oils o. Safe storage handling and disposal of lubricants

5. Identify the classifications of (oils, greases and solid lubricants) and (non-petroleum based

lubricants), (graphite and synthetics) and their specific uses. 20%

6. Select the proper lubricant for specific applications. 10%

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Unit: C2 Read and Interpret Drawings II Level: Two Duration: 15 hours Theory: 5 hours Practical: 10 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) Apprentice with the knowledge and skills necessary to use blueprints in order to read and interpret mechanical drawings. Material covered includes: Engineering drawings. Percent of Objectives and Content: Unit Mark (%)

1. Read and interpret mechanical drawings to determine the location, the position and the elevation of various equipment, electrical components, mechanical component or piping components. 40% a. Purpose of blueprints b. Purpose of schematics c. Purpose of drawings d. Partial views and their uses e. Piping components, valves and fittings

• Schematics and symbols

2. Determine the location, the position and the elevation of various equipment, electrical components, mechanical component or piping components. 60%

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Unit: E2 Welding II Level: Two Duration: 40 hours Theory: 15 hours Practical: 25 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to perform basic welding in fabrication operations using arc welding processes and compliance with safety procedures. Material covered includes:

• Safety around oxy-fuel equipment • AC and DC machines • Electrodes • Terminology • Welding positions I


1. Describe how to set up and operate arc welding equipment. 5% a. AC and DC machines b. Straight and reverse polarity c. Proper grounding methods d. Electrode holders e. Amperage settings for various electrodes

2. Describe the numbering system for electrodes:. 5%

a. Electrode number system b. Tensile strength c. Welding position recommended for the electrode d. Penetration

3. Define terms involved in electric arc welding. 5%

a. Duty cycle b. Arc blow c. Polarity d. Spatter

4. Demonstrate a working knowledge of the different types of joints encountered in welding. 60%

a. Butt, tee, lap, corner, edge joints

5. Describe procedures for welding in the flat, vertical and horizontal positions. 5%

6. Describe procedures to weld with GMAW (MIG). 10% a. Setting up GMAW equipment b. Basic operation of GMAW equipment

7. Describe procedures used in cutting with the plasma arc process. 10%



Unit: F1 Rigging Level: Two Duration: 45 hours Theory: 25 hours Practical: 20 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to safely lift and move machinery and equipment using appropriate tools and devices. Material covered includes:

• Safety factors pertaining to rigging • Selecting the appropriate sling • Chain blocks and chain falls


1. Describe proper method of erecting and installing ladders and scaffolds. 5% a. Limits in accordance with regulations b. Various types of scaffolds and ladders common to the trade c. Procedures required for erecting ladder scaffolds, platform scaffolds, and unit scaffolds in a

safe manner, ensuring that they are level and secure d. Necessity for and correct use of guard rails, safety belts and life lines e. 100% tie off of ladders

2. Describe proper use of safety harnesses and lanyards. 5%

3. Identify and describe the types, construction and use of wire and fibre rope. 5%

a. Construction of wire rope • Lays • Cores • Strands

b. Grades of wire rope c. Preformed wire rope d. Classification of wire rope e. Wire rope size f. Fleet angles g. Lubrication of wire rope h. Storing and handling i. Determining rope anchorage on a drum j. Natural fibre ropes k. Synthetic fibre ropes l. Fibre rope size

4. Identify safety factors pertaining to rigging. 10%

a. Estimating safe working loads of ropes and slings b. Estimating weight of lifted objects c. Centre of gravity d. Temperature considerations (reason for: heat affects synthetic slings – safety)


5. Identify types of slings and attachments. 5%

6. Identify various types of knots used in rigging equipment for lifting or moving. 5% a. Figure eight knot b. Reef knot c. Bowline d. Bowline-on-the-bight e. Clove hitch f. Rolling hitch g. Sheep shank h. Sheet bend i. Others

7. Select the appropriate sling to perform a given task. 20%

a. Single vertical hitch b. Bridle hitch c. Single and double basket hitch d. Single and double choker hitch e. Endless slings f. Synthetic web slings – heat hazards g. Metal mesh slings h. Chain slings

8. Describe the procedure for lifting, moving and securing equipment. 5%

a. Safety considerations b. Hand signals/electronic

• Radio transmitters c. Jacks d. Rollers

9. Select and use various chain blocks and rope falls. 20%

a. Block types b. Mechanical advantage c. Chain hoists d. Inspection of chain hoists

10. Describe the different types of forged lifting accessories and their uses. 5%

a. Sockets b. Cable clips c. Thimbles d. Hooks e. Shackles f. Eye bolts g. Turnbuckles h. Spreader and equalizer beams i. Load limiting devices

11. Describe use of handbooks to determine strengths of lifting ropes/cables and chains (slings, etc.) 5%

12. Identify inspecting, testing and maintaining all equipment used. 10%

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Industrial Mechanic (Millwright) Unit: F2 Install, Troubleshoot and Maintain Rigging, Hoisting and Lifting

Equipment Level: Two Duration: 10 hours Theory: 10 hours Practical: 0 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to safely use and maintain Gib Cranes, hoists and hoisting equipment common to the trade of Industrial Mechanic (Millwright) and compliance with safety procedures. Percent of Objectives and Content: Unit Mark (%)

1. Describe the application, use and maintenance of hoisting equipment common to the trade. 30%

a. Types of, features of and uses of cranes and components b. Definition of “crane terminology” c. Hazards existing in the use of cranes d. Procedures in inspecting cranes e. Procedures of repairing cranes (tools, cable, etc.) f. Procedures and methods of testing and adjusting cranes g. Use of manufacturer’s service and operating manuals to determine:

• Operating procedures • Location and function of controls • Lifting capacity • Lubrication and maintenance procedures and specifications

h. Methods and procedures of testing hoisting equipment for hoisting, drift, and travel movements i. Use of manufacturer’s service and operating manuals to determine:

• Operating procedures • Location and function of controls • Lifting capacity • Lubrication and maintenance procedures and specifications

j. Methods and procedures of testing hoisting equipment for hoisting, drift, and travel movements k. The use of operating and service manuals to determine:

• Operating procedures (hoisting equipment) • Location and function of controls • Lifting capacity of main and auxiliary hoists • Lubrication, maintenance specifications and procedures

2. Identify and describe the application, use and maintenance of hoists and hoisting equipment common to the trade. 30%

a. Types of, features of, and uses of hand operated hoists b. Types of, features of and uses of power operation hoists c. Describe techniques of hanging hoists to supporting members d. Procedures to estimate load weight e. Techniques of “DRIFTING” loads by the use of two or more hoists


f. Techniques of moving loads on an inclined plane g. Importance of centering hoist over load balance center before lifting h. Procedures of handling long pieces of equipment when lifting with hoists i. Use of manufacturer’s handbooks to determine the strength of rope, chain, and cable as they relate to

hoists j. Use of hand signals and radio transmitter to communicate

3. Identify the correct use of common hand signals used in rigging and hoisting common to the trade. 40%

a. The most common hand signals used for rigging, hoisting and crane operations b. Appropriate hand signals used for rigging, hoisting and crane operations

***



Unit: G1 Gaskets, Seals and Packing Level: Two Duration: 20 hours Theory: 10 hours Practical: 10 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to select, install and maintain static and dynamic sealing devices. Material covered includes:

• Selection of proper gasket, seal and packing • Procedures to install gaskets, seals and packing


1. Describe the principles of operation and classification of static and dynamic sliding seals. 50% a. Definition of static and dynamic seals b. Using gaskets to seal housings c. Gasket and flange arrangements d. Gasket compression e. O-rings used as gaskets f. Dynamic seals g. Contact and clearance seals h. Packing i. Inside and outside packed installations j. Compression packing removal and installation methods k. Lantern rings l. V-ring packing uses and installations and adjustment procedures m. U-ring packing uses and installation procedures n. Cup packing uses and installation procedures o. O-rings used as dynamic seals p. Anti-extrusion rings q. Piston rings r. Lip seal

• Inclusion and exclusion • Installation procedures

s. Inclusion and exclusion seals t. Lip seal installation procedures u. Wipers, boots, bellows and diaphragm seals v. Mechanical seal theory of operation w. Flushing and quenching mechanical seals x. Mechanical seal maintenance y. Bushings z. Annulur, slinger and labyrinth seals


2. Select the proper sealant for different applications. 15% a. Definition of sealants b. Hardening and non-hardening sealants c. Tapes

3. Select the proper gasket material for specific applications. 15%

a. Requirements of gasket materials b. Metallic and non-metallic gaskets c. Making and installing gaskets

4. Inspect, remove, and replace gaskets, seals and packing. 20%

a. Procedures for the proper removal, inspection and replacement of gaskets, seals and packing

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Industrial Mechanic (Millwright) Unit: G2 Bearings Level: Two Duration: 16 hours Theory: 8 hours Practical: 8 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to explain the use, classification, and removal and installation methods for bearings. Material covered includes:

• Purposes of bearings • Classification of bearings • Removal, installation and maintenance of bearings


1. Identify the classification, uses, styles and purpose of friction bearings (sleeve – type). 20% a. Bearing housings b. Dimensions of friction bearings (sleeve – type) c. Styles of friction bearings (sleeve – type) d. Joint design e. Liner materials

• Metallic and non-metallic liner material • Babbitt

f. Keys g. Mandrels h. Pouring babbitt i. Preformed liners j. Bushings k. Thrust control l. Kingsbury thrust bearings m. Guide bearings

2. Describe friction bearing (sleeve – type) clearances and fits. 20%

d. Fitting process for contact e. Chamfering, relieving and oil grooves f. Clearance in a bearing g. Shims

3. Describe the different types of anti-friction bearings (rolling elements) and their applications. 15%

d. Basic parts of a bearing e. Common bearing types f. Rolling elements g. Shielded and sealed bearings h. Types of load for bearings i. Service weight of a bearing


j. Separable and non-separable bearings k. Non-aligning and self-aligning bearings

4. Describe the numbering and lettering in the bearing code. 15%

a. Information supplied in the code b. Four and five figure codes and their meanings c. Code prefixes and suffixes and their meaning d. Codes for tapered bore bearings e. Definition of bearing clearance terms

5. Define terminology and describe the procedures to remove and install anti-friction bearings. 15%

a. Shaft and housing checks b. Push fit c. Creep d. Interference fit e. Clearances f. Press fits g. Procedures for pressing bearings on shafts h. Shrink fits i. Methods of heating and chilling a bearing j. Installing a hot bearing k. Installing bearing outer rings in split or bored housings l. Axial positioning m. Positive positioning of the inner race n. Positive positioning of the outer race o. Floating and fixed bearings p. Methods of thrust adjustments q. Arrangement of angular contact bearings r. Mounting spherical roller bearings s. Non-destructive bearing removal methods t. Withdrawal sleeves u. Adapter sleeves v. Destructive bearing removal methods w. Hydraulic removal procedures x. Pillow block installation and removal methods y. Mounting flange, needle and thrust bearings

6. Describe maintenance procedures for anti-friction bearings. 15%

a. Keeping bearings clean b. Cleaning bearings c. Storing bearings d. Preventing contamination e. Checking for bearing wear f. Checking for bearing failure g. Choosing correct lubrication h. Split bearings

7. Describe maintenance procedures for anti-friction bearings. 15%

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Industrial Mechanic (Millwright) Unit: G3 Couplings and Clutches Level: Two Duration: 41 hours Theory: 21 hours Practical: 20 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to use, classify, install and maintain various types of couplings and clutches. It will also provide the apprentice with the knowledge and skills necessary to align and level coupling using different methods. Material covered includes:

• Selection of proper couplings and clutches • Procedures to install and maintain coupling and clutches • Operation of couplings and clutches • Coupling alignment • Align couplings using standard alignment methods • Align couplings using the reverse dial alignment method • Align couplings using the laser alignment method


1. Classify the various types of couplings and clutches. 40%

2. Describe the theory of operation of various types of couplings and clutches. a. Purpose of couplings b. Types of couplings c. Purpose of clutches

3. Identify the various types of couplings and explain their application.

a. Rigid couplings • Sleeve, flanged, compression and clamp couplings

b. Flexible coupling c. Mechanically flexible couplings

• Jaw and slider, gear, chain, metallic grid and metallic disc couplings d. Elastomeric couplings e. Jaw, rubber tire and bushed pin couplings

• Failure of flexible couplings • Universal joints • Centrifugal couplings

-Clutch style couplings -Fluid couplings -Dry fluid couplings

f. Clutches and brakes g. Mechanical clutches: (positive contact, friction, and over-running) h. Disc clutches and brakes

• Torque limiting clutch • Drum clutches and brakes • Cone clutches and brakes


i. Over-running clutches • Sprag, wrap spring, roller ramp types

j. Electromagnetic clutches and brakes k. Actuation methods for clutches and brakes

• Mechanical, electrical, pneumatic, hydraulic and self activating

4. Identify the different types of splines, keys and keyways and their purposes. a. Types and purpose of keys

• Parallel keys • Square and rectangular keys • Stepped keys • Saddle keys • Boxed keys • Gib headed keys • Tapered keys • Woodruff keys

b. ANSI code numbering system for woodruff keys c. Keyseats in shafts:

• Parallel and boxed keyseats d. Measurement of keyseats and keys:

• Woodruff keyseats e. Keyways in attachments f. Tapered key g. Cutting keyseats:

• End mills • Broach and arbour press

h. Installing and fitting keys i. Securing keys with adhesives and setscrews:

• Types of set screws for various applications • Set screw location • Types of adhesives • Removing keys

5. Select the proper lubrication for the various clutches and couplings.

a. Lubricant choice criteria

6. Describe the specific use of various types of shafts and attachments. a. Terms and definitions relating to shafts b. Types of shafting c. Uses of shafts d. Identifying shafting e. Shaft stresses and their sources f. Stress reduction g. Bearing replacement h. Shaft maintenance:

• Alignment • Shaft centres • Critical speed • Types of runout • Shaft repair methods • Shaft attachment • Bearings, hubs, couplings and gears

i. Installing attachments j. Definition of tolerances and fits:

• Types of tolerance • Types of fit • Methods of assembly • Shrink, forced and expansion fitting

k. Assembly and disassembly equipment • Presses • Pullers and bearing splitters


7. Identify standard alignment procedures. 15%

8. Identify the different types of misalignment. a. Conditions of misalignment b. Results of misalignment

9. Describe how to perform pre-alignment checks.

a. Piping strains on pumps b. Concentricity of coupling and shaft c. Tools and shims

10. Describe the procedure for checking and correction for soft foot.

11. Describe the procedure to align a coupling using a straight edge and feeler gauges.

a. Use of dial indicators b. Rim and face readings c. Recorded readings d. Soft foot e. Total run out f. Explanation of formulae g. Bar/ shaft sag h. Thermal growth/ shrinkage i. Methods of moving equipment to be aligned j. Jacking devices k. Corrections

12. Identify reverse dial indicator alignment. 15%

13. Identify the advantages of the reverse dial alignment method compared to the rim and face method.

14. Describe how to determine and compensate for bar/shaft sag.

15. Calculate shims required for alignment using the graph method.

a. Soft foot b. Bar sag c. Using graph paper and graphs d. Definitions of target and sight e. Target and sight indicator lines f. Alignment lines g. Shaft misalignment lines h. Thermal growth/shrinkage i. Plotting the different lines on graph paper j. Setting up the dial indicators k. Checking and recording bar sag l. Obtaining accurate readings

16. Calculate shims required for alignment.

17. Laser couplings alignment.

18. Identify the different accessories used in alignment with the optical alignment system.

a. Safety with laser-optic equipment • Lasers and detectors

b. Use of beam finder c. Inclinometer/level d. Installation of brackets e. Connecting the system

19. Describe procedures to obtain misalignment readings.

a. Adjusting the prism b. Adjusting the reflected beam


c. Measurement procedures (“zero-zero” alignment) d. Entering measurements of the machine to be moved

20. Describe procedures to correct for misalignment using shims.

a. Vertical and horizontal adjustment

21. Identify rim and face alignment. 15%

22. Identify laser alignment. 15%

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Industrial Mechanic (Millwright) Unit: G4 Drives Level: Two Duration: 20 hours Theory: 10 hours Practical: 10 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to install, align and maintain belt and chain drive systems. It also provides the apprentice with the knowledge and skills necessary to operate, repair and maintain various gear drive units and their internal components. Material covered includes:

• Demonstrate understanding of the operation of belt and chain drive systems • Install belt and chain drive systems • Maintain belt and chain drive systems • Calculation of speeds and reducer ratio • Gears • Procedures on set up and operation of gear drive units


1. Describe the principles of operation of belt, chain and gear drive systems. 20% a. Belt drive principles b. Area of contact c. Belt and pulley materials d. Definition of installed and effective tension e. Methods for checking tension f. Slip and creep in belts g. V-belt advantages and construction:

• Standard, heavy duty and double angle belts • Straight and concave sidewalls • Notched belt • Endless and joined belts

h. Pulleys and sheaves: • Diameters and rim speed • Idler purpose and location • Pulley and sheave hubs • Determining pulley width

i. Principle of operation of gear drive units: • Purpose of gears • Gear terminology:

-Addendum and dedendum -Circular pitch and diametral pitch -Working depth and clearance

• Conditions for gear meshing • Tooth profile and action • Backlash • Gear material


• Shaft arrangement • Gear types • Internal and external spur gears • Helical gears:

-Single and double helical gears -Left and right hand gears -Thrust

• Bevel and angular and spiral bevel gears: -Mounting distance

• Mitre gears • Hypoid gears • Worm and worm gears

-Non-throated, single and double throated worm and worm gear sets • Gear types and shaft arrangements

2. Describe the various classifications of belts and chains. 15%

a. V-belt types, sizes and codes: • Conventional and high capacity belts • Light duty and double angle belts • Wide belts • Positive drive belts • Linked belts • Poly belts • Power band belts • Matched belts

b. Crowned and flanged pulleys c. V-flat drives d. Variable speed belt drives:

• Adjustable and fixed centres • Sheave action

e. Chain drive components: • Types of links • Standard roller chain • Connecting links • Offset links

f. Definition of roller chain dimensions: • Pitch, width, roller and pin diameter, and link plate thickness

g. Roller chain code numbers: • ANSI code number interpretation • ISO code numbers

h. Types of roller chain and their application: • Multiple strand chain • Double pitch chain • Silent chain

i. Sprocket types and their application: • Type A, B, C and D sprockets • Sprocket sizing • Sprockets for double pitch chain:

o Single and double cut sprockets j. Advantages of roller chain drives k. Drive design:

• Shaft centre distances • Drive and drives sprockets

l. Determining proper amounts of chain slack for horizontal and vertical drives: • Idler sprocket purposes and location

3. Perform calculations required for the proper installation and maintenance of belt and

chain. 15% a. Approximate and exact belt length calculations b. Arc of contact calculations c. Recommended speed ratios for sheaves and sprockets


d. RIM speed calculation for belt drives e. Chain pitch, width, roller and pin diameter calculations f. Calculating chain length inches and pitches g. Chain speed calculations

4. Describe the procedures to remove, install and align sheaves and sprockets. 20%

a. Installation and alignment methods b. Belt storage c. Sheaves for V-belts d. Groove angle e. Troubleshooting belt drives f. Aligning shafts and sprockets for chain drives g. Roller chain lubrication:

• Oil grades • Lubrication methods

h. Chain drive misalignment i. Chain wear due to stretch and pin wear j. Sprocket wear k. Causes of excessive slack l. Procedures for roller chain replacement:

• Sprocket condition • New chain length • Breaking and joining the chain

m. Troubleshooting tips for chain drives

5. Perform gear calculations. 15% a. Formulas used for drive system calculations:

• Speed of driver or driven • Calculating for reducer ratio • Single and compound gear reductions

6. Describe speed reducers of various designs, uses and operation. 15%

a. Overdrive and reduction units • Worm gear reduction units:

-Internal parts and their purpose -Shimming for bearing clearance -Fitting for proper mesh -Single and multiple reduction and recommended speed ranges for each

• Helical and herringbone reducers: -Fitting

• Planetary gear reduction units: -Sun gears, ring gear and carrier

• Installing and maintaining drive units • Lubrication methods used in reducers

***



Unit: G8 Installation and Erection of Machinery Level: Two Duration: 25 hours Theory: 15 hours Practical: 10 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to locate, layout, prepare foundation, install and align machinery in compliance with safety procedures. Material covered includes:

• Safety practices and care of machinery • Information on proper tool and equipment • Using blueprint to locate and layout forms • Machinery set-up procedures


1. Describe set-up procedures for using transits and levels. 25% a. Precision levels b. Builder’s level c. Transits and theodolites d. Lasers e. Effects of temperature on optical alignment (reflection/refraction) f. Optical tooling and accessories

2. Describe procedures to construct foundations for equipment. 25%

a. Concrete terms b. Controlling vibration c. Anchor bolt types and applications d. Mechanical expansion anchors e. Chemical adhesive anchors f. Positioning and setting anchors bolts g. Tools required to build a form

3. Describe procedures to properly place and level a piece of equipment on its base or foundation. 25%

a. Baseplate and sole plate purpose and installation procedure b. Leveling and jacking screws c. Shims d. Wedges e. Precision leveling the baseplate f. Grout and its purpose g. Placing grout h. Preventing and filling voids i. Dowelling


4. Describe procedures to locate and lay out a form from a blueprint. 25% a. Building tie-in b. Reference lines c. Centre lines d. Benchmarks and datums e. Brass plugs f. Establishing references lines

• Mechanical methods g. Optical methods

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Industrial Mechanic (Millwright) Unit: G9 Conveyors Level: Two Duration: 28 hours Theory: 18 hours Practical: 10 hours Overview: This unit of instruction is designed to provide the Industrial Mechanic (Millwright) apprentice with the knowledge and skills necessary to assemble, install, troubleshoot, repair and maintain conveyors. Material covered includes:

• Principles of operation • Joining and splicing of belt • Maintenance


1. Describe the operating principles of belt conveyors. 10% a. Types of belts

• Construction • Uses

b. Troughed conveyors c. Idlers and their use d. Pulley terms

2. Calculate belt length, surface speeds and arc of contact. 10%

a. Formulas and their specific applications

3. Describe the various types of conveyor systems and their uses. 10% a. Slide conveyors b. Troughed conveyors c. Roller conveyors d. Bucket elevators e. Chain conveyors f. Screw conveyors g. Pneumatic conveyors h. Food handling conveyors i. Apron feeders

4. Describe the purpose for various attachments and accessories used in conveyor systems. 10% a. Belt take up methods b. Loading and unloading methods c. Scrapers and cleaners d. Magnetic pulleys and Electromagnetic belt conveyors e. Backstops and braking methods for inclined conveyors f. Take up devices


5. Describe the joining and splicing of belts. 10% a. Belt installation b. Methods of joining belts

• Vulcanization • Chemical • Mechanical fasteners • Cold and hot splices

6. Describe procedures to troubleshoot belt and conveyor problems. 20%

a. Alignment and training a conveyor belt b. Belt slip c. Belt stretch d. Belt breakage e. Belt deterioration f. Excessive belt wear

7. Describe the operating principles, the classification and the uses of chain, screw and pneumatic conveyors. 10%

a. Theory of operation of chain conveyors b. Flight conveyors c. Drag conveyors d. Transfer tables e. Head and tail end details f. Roll cases g. Trough conveyors h. Theory of operation and classification of screw conveyors i. Screw conveyor components j. Theory of operation of pneumatic conveyors k. Vacuum systems l. Feeders m. Flow regulation n. Low, medium and high pressure systems o. Cyclones p. Air slide systems q. Blowers and fans

8. Describe the maintenance procedures for chain, screw, and pneumatic conveyors. 10%

a. Dismantling b. Inspection c. Repair procedures d. Re-assembly methods for conveyors

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Documents

Industrial Mechanic (Millwright) Level 2 - Province of Manitoba