Overhead Cranes-Cab Controlled C31

DESCRIPTION

Unit Standard (SAQA Reg. No 116235)

What is an overhead crane? Commonly called a bridge crane, and is a type of crane found in industrial environments.

An overhead bridge crane is a configuration of a single girder or double girder design. In simple terms, a bridge girder, or beam, is the support structure that allows the operator to move trolley and hoist from side-to-side along the bridge. The trolley is used to precisely position the hoist prior to raising or lowering a load in a safe work manner.

A crane can be controlled by an operator on the floor using a push button pendant system that is attached to the crane itself, or a wireless control that utilizes a radio transmitter and receiver.

Unlike mobile or construction cranes, Pendant controlled overhead cranes are typically used for either manufacturing or maintenance applications, where efficiency or downtime are critical factors.

If a crane operator is trained properly, pendant and radio controls can both be perfectly safe methods for controlling and operating a crane. Training is a vital issue and DMR 18(11) prohibits the operation of Overhead cranes by untrained persons.

Successful candidates credited with this unit standard are able to:

Demonstrate knowledge of the functions of a pendant controlled overhead crane
Identify the safety and suitability of the crane
Apply the recognized methods for inspecting and recording the operational fitness of all components of the crane
Operate a pendant controlled overhead crane

COURSE DURATION:

. Novice: 5 Days
. Refresher: 1 Day

NQF LEVEL: 2

CREDITS: 5

Quality Assured Partner: Transport Education And Training Authority

Category: TETA Courses

Detailed Information

Pendant Controlled Overhead Crane Learning Outcomes

Learners who master the applied competence described in this course will contribute to the development of a professional community of Civil Engineering Construction Crane Operators who are able to competently use science and technology when applying operation techniques. Demonstrating an integrated practical and theoretical grounding in Crane Operations according to safe handling and maintenance practices in compliance with crane manufacturer’s and legislated standards. The area of focus of this programme will be;

Legislative Requirements

General Duties Of Employers To Their Employees
General Duties Of Employers And Self-Employed Persons To Persons Other Than Their Employees

Duty To Inform

General Duties Of Employees At Work

General Safety Regulation

Personal Safety Equipment And Facilities

Intoxication

Admittance Of Persons

General Safety Regulation

Stacking Of Articles

General Machinery Regulations

Safeguarding Of Machinery

Driven Machinery Regulations

Lifting Machines, Hand-Powered Lifting Devices And Lifting Tackle

National Code Of Practice

Programme Break-Down & Duration

Learners Without Prior Training Or Experience

Operators With Previous Certification (Recertification)

Managerial Responsibilities

Cranes Defined

Crane Codes

Attachments & Special Operations

General View Of A Pendant Controlled Overhead Crane

Function And Capacity Of Pendant Controlled Overhead Cranes

Principles Of Overhead Crane Operation

Principles Of Leverage

Levers Defined
Classification Of Levers
The Law Of Moments

Data & Capacity Plates

Understanding The Rated Lifting Capacity Of Overhead Cranes

Centre Of Gravity & Combined Centre Of Gravity

Suitability Of Pendant Controlled Overhead Cranes

Technical Information: Pendant Controlled Overhead Cranes

Pendant Controlled Overhead Crane Components

Getting To Know The Pendant Controlled Overhead Crane

Major Components: Bridge And Gantry Cranes
Crane Controls
Lockouts
Lockable Isolation Switches
Interlocking Devices
Main Hook And Block
Auxiliary Hook Block And Hook
Anti-Two Block Safety Device

Below The Hook Lifting Devices

Pendant Controlled Overhead Crane Inspections

Daily Inspection For Pendant Controlled Overhead Cranes – Pre-Start Checks

Personal Protective Equipment
Main Isolator
Support Beam/Structure
Pillars
Service Platform
Hand Railing
Long Travel Unit (Gantry) Structure
Long Travel Girder(S)
End Stops/Buffers
Long Travel Unit (Gantry) Rails
Crab Structure
Crab Rails
Monorail Single Carrying Beam/Swing Beam
Joints
Cable(S)
Cable Glands
Cable Brackets/Hold Down Clamps
Panel Box
Insulated Rails/Buzz Bars
Panel Handle
Earth Connections
Key Switch
Selector Switch
Pendant Controller
Pendant Cable/Rope
Hoist Drive Motor
Hoist Gear Box
Hoist Gear Box Oil Level
Hoist Gearbox Oil Breathing Plugs
Hoist Brake
Over Lowering Limit Switch
Over Hoisting Limit Switch
Ultimate Limit Switch (Where Applicable)
Hoist Rope
Hoist Rope Guide
Rope Securing Device
Hoist Drum
Main Hoist Hook
Auxiliary Hoist Hook
Hook Block(S)
Safety Catches
Sheave Wheels
Cross Travel Unit
Cross Travel (Crab) Drive Motor
Cross Travel Gear Box
Cross Travel Gear Box Oil Level
Cross Travel Gear Box Oil Breathing Plugs
Crab Travel Gears
Grease Points On Pinions And Gears
Cross Travel Wheels
Cross Travel Brake
Cross Travel Limit Switch (Where Applicable)
Long Travel Unit
Long Travel Wheels
Long Travel Drive Motor
Long Travel Gearbox
Long Travel Gearbox Oil Level
Long Travel Gearbox Oil Breathing
Long Travel Brake Plugs
Long Travel Limit Switch (Where Applicable)
Weather Covers
Cable Reel
Cable Reel Drive Motor
Cable Reel Drive Gear Box
Cable Reel Gearbox Oil Breathing Plugs
Cable Reel Drive Belt/S
Cable Reel Drive Pulleys
Load Limiting Device
General Condition Of Overhead Crane
No Obstruction Under Crane

Operational Checks

Long Travel Brake Test
Cross Travel Brake Test
Hoist Brake Test (Lowering)
Hoist Over Lowering Limit Switch Test
Hoist Brake Test (Raising)
Hoist Over Raising Limit Switch Test

Operator’s Daily Checklist: Overhead Crane

Lifting Machinery: Record Of Inspections

Pendant Controlled Overhead Crane Operational Procedures

Operating Instructions
Parking And Shutting Down The Overhead Crane

Freight Handling

Duty To Inform

Identifying And Classifying Freight

Material Safety Data Sheets (Documentation)
Employer Responsibilities
Sections Of An MSDS And Their Significance

Labelling: Dangerous Goods & Substances

Toxic And/Or Corrosive (Combustible) Substances
Radioactive Materials (Low To High Level Radiation)
Flammable Liquids (Polar/Water-Miscible) Potential Hazards
Flammable Solids – Toxic And/Or Corrosive Potential Hazards
Substances – Spontaneously Combustible – Toxic (Air-Reactive) Potential Hazards
Substances – Water-Reactive (Emitting Flammable And Toxic Gases) Potential Hazards
Oxidizers (Unstable) Potential Hazards
Organic Peroxides (Heat And Contamination Sensitive/Temperature Controlled) Potential Hazards
Substances – Toxic (Non-Combustible) Potential Hazards
Infectious Substances Potential Hazards
Mixed Load/Unidentified Cargo Potential Hazards
Gases – Inert Potential Hazards
Gases – Flammable – Corrosive Potential Hazards
Gases – Oxidizing (Including Refrigerated Liquids) Potential Hazards

Labelling: Symbols

Safety Colours And Symbols
Typical Signs: Examples

Rigging & Slinging

Lifting Tackle

Driven Machinery Regulations

Determining Load Weights

Weight Tags
Waybills
Known Quantities
Test Picks

Centre Of Gravity

Location Of The Load (COG)
Estimating The Centre Of Gravity
Finding The (COG) By Using Known Weights
Finding The (COG) By Weighing The Load

Slings

Chain Slings
Selecting A Chain For The Job
Chain Slings – Types
Using Chains And Chain Slings Safely And Correctly
Chain Working Load Limits
Chain Inspections
Chain, Chain Slings, Hooks And Shackles – 3-Monthly Inspection
Wire Rope Slings
Wire Rope Slings – Types
Using Wire Ropes Safely And Correctly
Causes Of Deterioration
Wire Rope Working Load Limits
Wire Rope Inspections
Calculations
Fibre Ropes, Steel Wire Ropes, Slings, Hooks And Shackles – 3-Monthly Inspection
Polyester Webbing Slings
Types Of Polyester Webbing Lifting Slings
Polyester Webbing Sling Properties
Selection, Safe Use And Maintenance Of Polyester Slings
SWL Of Polyester Slings
Recommendations For Inspection Of Polyester Slings For Detection Of Damage

Rigging Attachments

Eye Bolts And Ring Bolts
Lifting With Eye Bolts
Alignment Of Eye Bolts
Safe Working Loads (Lbs) Corresponding To Angle Of Pull
Shackles
Alloy Bow Type Shackles
Large Dee With Screw Collar Pin Galvanised
Crosby Clamps
Green Pin
Commercial
Recommended Method Of Applying Crosby Clamps
Rope Clips
Incorrect Methods Of Applying Wire Rope Clips
Turnbuckles
Eye One End Hook Other End
Thimbles
Ordinary Galvanised
Standard Commercial Galvanised
Hooks
Hook Inspections
Wire Rope Blocks
Calculation: Parts Of Line Required
Rope Reeving
Symmetrical (Balanced) Reeving
Eccentric (Unbalanced) Reeving

Slinging – General Information

Eccentric Loading
Slings And Safe Working Load Sling Configurations
Single Vertical Hitch
Bridle Hitch
Single Basket Hitch
Double Basket Hitch
Double Wrap Basket Hitch
Single Choker Hitch
Double Choker Hitch
Double Wrap Choker Hitch
Endless Slings Or Grommet Slings
Sling Angles
Effect Of Sling Angle On Sling Load
Wind Loading
Beaufort Wind Scale For Use On Land

Operator Communication Skills

Operator Communications- Standard Hand Signals

Definitions
Requirements For Hand Signals
Start & Stop
Selection Of Hoists
Raising & Lowering Of Hook
Movement
Travel Of Crane
General Movement
Overhead Crane Horn (Hooter) Signals

Two-Way Radio

Semaphore Flag Signalling

The Semaphore Alphabet

Pendant Controlled Overhead Cranes: General Safety

General Safety Regulations

Personal Protective Equipment (PPE)

Hard Hats
Impact Hazards
Electrical Hazards
Ensure Proper Fit
Accessories And Modifications
Inspection And Maintenance
Safety Glasses
Chemical Hazards
Inspection And Maintenance
Gloves
Abrasion Hazards
Cut Hazards
Glove Material Applications
Protective Footwear
Impact Hazards
Puncture Hazards
General PPE Safety

Pendant Controlled Overhead Crane Safe Operational Responsibilities

Site Supervision
Crane Operational Responsibilities

Pendant Controlled Overhead Crane Safety Rules

Before Operation
During Operation
Shield Operating Controls (Case Study)
Crushing (Case Study)

Hazards Associated With Overhead Cranes And Lifting Equipment

Risk Control Situations

General
Selection
Inspection
Disposal
Storage
Fibre Rope Slings

Emergency Response

Care And Maintenance Of Your Fire Extinguisher

Fire Extinguisher Inspections
Fire Extinguisher Maintenance
Using A Fire Extinguisher
How A Fire Extinguisher Works
Types Of Fire Extinguishers
Water Extinguishers
Dry Chemical Extinguishers
Carbon Dioxide (CO2) Extinguishers
How Fire Works
Fire Fighting Tips
How To Fight A Fire Safely
Never Fight A Fire When
When Your Clothes Catch Fire

Entry Level Requirements Into This Programme?

All new entrants intended under this code (Novice or Re-licensing) shall provide training institution with the required documents as specified under the National Code Of Practice (NCOP No 43835) Promulgated 23 October 2020

An employer declaration or medical certificate confirming the medical fitness of the learner to undergo the intended training
An eye test results issued by a person trained to carry out such tests
All new entrants intended under this code will be required to hold at least a Grade 9 (Std 7) school certificate
Learners shall provide training institution with a valid certified copy of his/her Identity Document
Employers must provide a valid copy of the Pendant Controlled Overhead Crane Load Test Certificate