Major Work Activity C - Performs crane set-up, hoisting calculations and lift planning
Table of Contents
- Task C-6 Participates in tower crane assembly, disassembly and transportation
- Task C-7 Participates in tower crane climbing and reconfigurations
- Task C-8 Plans lifts
Task C-6 Participates in tower crane assembly, disassembly and transportation
Task Descriptor
This task encompasses the assembly and disassembly of a tower crane. Tower crane operators have the competence to assist and coordinate with many other crew members to accomplish this task. Manufacturers’ specifications and procedures must be strictly adhered to in order to safely assemble and disassemble tower cranes.
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-6.01.01P | select and use tools and equipment | tools and equipment are selected and used according to task |
| C-6.01.02P | participate in coordination of roles and responsibilities of crew members for assembly | roles and responsibilities with crew members for assembly are coordinated according to site, job and manufacturers’ specifications and procedures |
| C-6.01.03P | inspect base | base is inspected to ensure it complies with manufacturers’ specifications |
| C-6.01.04P | inspect components for deficiencies | components are inspected to identify deficiencies |
| C-6.01.05P | erect components | components are erected according to manufacturers’ specifications and procedures |
| C-6.01.06P | check fluids, operating systems and other components | fluids, operating systems and other components are checked as required by job specifications and manufacturers’ specifications |
| C-6.01.07P | set and test limits | limits are set and tested according to manufacturers’ specifications |
Range of Variables
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, mobile cranes, rigging and rigging hardware, fall arrest equipment
- crew members include: erection crew, assist crane operators, crane supervisors
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
- deficiencies include: cracks, faulty welds, bends, dents, splices in power cable, broken wires
- operating systems include: hydraulic, electrical, mechanical, lubrication
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-6.01.01L | demonstrate knowledge of cranes, their components, characteristics, applications and operation | identify types of tower cranes and their components, and describe their characteristics and applications |
| identify operating systems, and describe their characteristics and applications | ||
| interpret information pertaining to cranes and their components found in specifications | ||
| C-6.01.02L | demonstrate knowledge of procedures for assembly of cranes | identify tools and equipment used to assemble cranes, and describe their procedures for use |
| identify hazards and describe safe work practices pertaining to assembly of cranes | ||
| describe procedures for assembly of cranes | ||
| describe procedures to inspect crane components | ||
| describe roles of personnel involved in crane erection and assembly | ||
| identify jurisdictional inspection and certification requirements, and documentation requirements | ||
| C-6.01.03L | demonstrate knowledge of training and certification requirements pertaining to assembly of cranes | identify manufacturers’ training and certification requirements pertaining to assembly of cranes |
| C-6.01.04L | demonstrate knowledge of regulatory requirements pertaining to assembly of cranes | identify standards and regulations pertaining to assembly of cranes |
Range of Variables
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
- types of tower cranes include: flat top, hammerhead, luffing, self-erecting, articulating
- operating systems include: hydraulic, electrical, mechanical, lubrication
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, mobile cranes, rigging and rigging hardware, fall arrest equipment
- hazards include: unlevelled ground, soft ground, underground utilities, pinch/crush points, availability and condition of blocking materials, other personnel in area, miscommunications, wind, improper assembly procedures
- documentation requirements include: professional engineered drawings, inspection documents (e.g., pre-inspection, certified NDT, erection reports), safe work plans, electrical permits, work permits, transport permits, street use permits, foundation reports
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-6.02.01P | select and use tools and equipment | tools and equipment are selected and used according to task |
| C-6.02.02P | participate in coordination of roles and responsibilities of crew members for disassembly | roles and responsibilities with crew members for disassembly are coordinated according to site, job and manufacturers’ specifications and procedures |
| C-6.02.03P | disable operating systems | operating systems are disabled according to manufacturers’ specifications and procedures |
| C-6.02.04P | unreeve wire ropes | wire ropes are unreeved |
| C-6.02.05P | dismantle components in sequence | components are dismantled in sequence according to manufacturers’ specifications and procedures |
| C-6.02.06P | participate in loading components onto transport trucks | components are loaded onto transport trucks according to industry practices |
Range of Variables
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, mobile cranes, rigging and rigging hardware, fall arrest equipment
- crew members include: erection crew, assist crane operators, crane supervisors
- operating systems include: hydraulic, electrical, mechanical, lubrication
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-6.02.01L | demonstrate knowledge of cranes, their components, characteristics, applications and operation | identify types of tower cranes and their components, and describe their characteristics and applications |
| identify operating systems and describe their characteristics and applications | ||
| interpret information pertaining to cranes and their components found in specifications | ||
| C-6.02.02L | demonstrate knowledge of procedures for disassembly of cranes | identify tools and equipment used to disassemble cranes, and describe their procedures for use |
| identify hazards and describe safe work practices pertaining to disassembly of cranes | ||
| describe procedures for disassembly of cranes | ||
| describe roles of personnel involved in crane disassembly | ||
| C-6.02.03L | demonstrate knowledge of training and certification requirements pertaining to disassembly of cranes | identify manufacturers’ training and certification requirements pertaining to disassembly of cranes |
| C-6.02.04L | demonstrate knowledge of regulatory requirements pertaining to disassembly of cranes | identify standards and regulations pertaining to disassembly of cranes |
Range of Variables
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
- types of tower cranes include: flat top, hammerhead, luffing, self-erecting, articulating
- operating systems include: hydraulic, electrical, mechanical, lubrication
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, mobile cranes, rigging and rigging hardware, fall arrest equipment
- hazards include: unlevelled ground, soft ground, underground utilities, pinch/crush points, availability and condition of blocking materials, other personnel in area, miscommunications, wind, improper disassembly procedures
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | no | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-6.03.01P | confirm route and location with crane owner or dispatcher | route and location are confirmed with crane owner or dispatcher |
| C-6.03.02P | secure crane | crane is secured according to manufacturers’ specifications |
| C-6.03.03P | move carrier-mounted self-erecting crane on site and on public roads | carrier-mounted self-erecting crane is moved on site and on public roads according to jurisdictional regulations |
| C-6.03.04P | confirm job requirements and site conditions with site personnel | job requirements and site conditions are confirmed with site personnel |
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-6.03.01L | demonstrate knowledge of self-erecting tower cranes, their components, characteristics, applications and operation | identify self-erecting tower cranes and their components, and describe their characteristics and applications |
| describe operating principles of self-erecting tower cranes | ||
| interpret information pertaining to self-erecting tower cranes and their components found in specifications | ||
| C-6.03.02L | demonstrate knowledge of procedures to transport self-erecting tower cranes | identify hazards and describe safe work practices to transport self-erecting tower cranes |
| describe procedures to secure self-erecting tower cranes | ||
| describe procedures to transport self-erecting tower cranes | ||
| identify factors for selecting transportation routes | ||
| interpret charts, drawings and specifications relating to self-erecting crane transportation | ||
| identify types of map tools used for pre-trip planning, and describe their characteristics and applications | ||
| C-6.03.03L | demonstrate knowledge of training and certification requirements pertaining to transportation of self-erecting tower cranes | identify training and certification requirements pertaining to transportation of self-erecting tower cranes |
| C-6.03.04L | demonstrate knowledge of regulatory requirements pertaining to transportation of self-erecting tower cranes | identify standards, restrictions and regulations pertaining to transportation of self-erecting tower cranes |
Range of Variables
- hazards include: collisions, accidents, traffic, tight clearances, not following approved travel route
- factors include: jurisdictional regulations and permits, travel times, lanes of traffic, rush hours, road conditions (grades, terrain, ice, mud), bridge capacities, clearances (tunnels, bridges), load types, turning radius
- specifications include: transport configuration, weights and dimensions
- map tools include: internet, Global Positioning System (GPS), printed map, permit map
- restrictions and regulations include: weight, height, width and requirement for escort vehicles, hours of service, appropriate class of driver’s licence, traffic laws, permits, use of flashing lights
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-6.04.01P | select and use tools and equipment | tools and equipment are selected and used according to task |
| C-6.04.02P | verify ground conditions for set-up | ground conditions for set-up are verified |
| C-6.04.03P | assess surroundings for obstructions and hazards | surroundings are assessed for obstructions and hazards |
| C-6.04.04P | verify power supply and ground crane | power supply is verified, and crane is grounded to meet requirements for assembly and according to manufacturers’ specifications and jurisdictional regulations |
| C-6.04.05P | set outriggers and level crane | outriggers are set using blocking and outrigger pads (mats) according to jurisdictional regulations and ground conditions, and crane is levelled using methods and adjusted as required |
| C-6.04.06P | erect crane | crane is erected according to manufacturers’ specifications and procedures |
| C-6.04.07P | set and test limits | limits are set and tested according to manufacturers’ specifications |
| C-6.04.08P | dismantle crane | crane is dismantled according to manufacturers’ specifications and procedures |
| C-6.04.09P | secure crane for transport | crane is secured for transport by ensuring locking pins and outriggers are in place according to manufacturers’ specifications and procedures |
Range of Variables
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, assist equipment, rigging and rigging hardware
- methods include: checking built-in level, putting spirit level on base and tower, adjusting air boosters in truck and dolly
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-6.04.01L | demonstrate knowledge of self-erecting tower cranes, their components, characteristics, applications and operation | identify self-erecting tower cranes and their components, and describe their characteristics and applications |
| describe operating principles of self-erecting tower cranes | ||
| interpret information pertaining to self-erecting tower cranes and their components found in specifications | ||
| C-6.04.02L | demonstrate knowledge of procedures for assembly and disassembly of self-erecting tower cranes | identify tools and equipment used to assemble and disassemble self-erecting tower cranes, and describe their procedures for use |
| identify hazards and describe safe work practices to assemble and disassemble self-erecting tower cranes | ||
| describe procedures to assemble and disassemble self-erecting tower cranes | ||
| describe procedures to secure crane for transport | ||
| C-6.04.03L | demonstrate knowledge of training and certification pertaining to assembly and disassembly of self-erecting tower cranes | identify manufacturer-specific training and certification available for assembly and disassembly of self-erecting tower cranes |
| C-6.04.04L | demonstrate knowledge of regulatory requirements pertaining to assembly and disassembly of self-erecting tower cranes | identify standards and regulations pertaining to assembly and disassembly of self-erecting tower cranes |
Range of Variables
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios, assist equipment, rigging and rigging hardware
- hazards include: clearances and obstructions, unlevelled ground, soft ground, overhead and underground utilities, pinch/crush points, condition of blocking materials, other personnel in area, miscommunications, wind, improper assembly and disassembly procedures
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
Task C-7 Participates in tower crane climbing and reconfigurations
Task Descriptor
Climbing cranes involves raising or lowering the working height of the upper works. Bottom-climbing is done by raising the entire crane and mast and supporting it on beams/collars resting on the surrounding building structure. Top-climbing involves hoisting new sections and adding them to the crane just below the upper works to extend the length of the mast. Reconfiguration refers to all other changes made to the tower crane to adapt to site requirements such as changing jib length and parts of line.
It is extremely important to follow engineering and manufacturers’ directions and sequence for both bottom- and top-climbing procedures.
Regulatory bodies specify the responsibilities and accountabilities for crane climbing and reconfiguration procedures, which are done by a team of competent workers, including the tower crane operator, specialized crane erectors, the crane supervisor and an assembling/dismantling director.
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-7.01.01P | check weather conditions before starting and continually monitor changing weather conditions | weather conditions are checked before starting and changing weather conditions are continually monitored during operations |
| C-7.01.02P | prepare for climbing by performing activities | climbing preparations are done by performing activities according to engineering and manufacturers’ specifications |
| C-7.01.03P | participate in assembly of climbing unit and equipment | climbing unit and equipment is assembled according to manufacturers’ specifications |
| C-7.01.04P | ensure that climb path is unobstructed by materials | climb path is unobstructed by materials |
| C-7.01.05P | monitor climbing process | climbing process is monitored to ensure that bottom-climbing equipment components are performing as designed |
| C-7.01.06P | maintain radio/cell communication with erection crew | radio/cell communication is maintained with erection crew throughout climb |
| C-7.01.07P | maintain balance during climb | balance is maintained during climb by adjusting configuration of crane and changing radius with balancing weight by trolleying or luffing according to manufacturers’ specifications |
| C-7.01.08P | rest crane on support beams | crane rests on support beams according to engineering and manufacturers’ specifications |
| C-7.01.09P | secure crane structure plumb and level | crane structure is secured so that it is plumb by adjusting and securing top and bottom wedges, and by using level to assess |
Range of Variables
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- activities include: preparing and installing support beams, ensuring adequate power cable and grounding is in place, placing shoring to support weight of crane, confirming adequate strength of building material (steel, concrete) to support crane upon engineering approval
- materials include: formwork, reinforcing steel in slab
- components include: mast sections, electrical components, climbing limit sensor, secured dogs, collars, beams, wedges, ladders, hydraulic rams, pumps and hoses
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-7.01.01L | demonstrate knowledge of bottom-climbing equipment and their components, characteristics, applications and operation | identify types of bottom-climbing equipment and their components, and describe their characteristics and applications |
| describe operating principles of bottom-climbing equipment and their components | ||
| interpret information pertaining to bottom-climbing equipment and their components found on drawings, manufacturers’ specifications and engineering specifications | ||
| C-7.01.02L | demonstrate knowledge of performing bottom-climbing procedures | identify tools and equipment used to perform bottom-climbing procedures, and describe their procedures for use |
| identify hazards and describe safe work practices to perform bottom-climbing procedures | ||
| describe pre-climbing activities | ||
| describe procedures to perform bottom-climbing | ||
| explain importance of climbing sequence | ||
| describe procedures to balance cranes | ||
| describe effects of weather conditions on bottom-climbing operations | ||
| C-7.01.03L | demonstrate knowledge of training to perform bottom-climbing procedures | identify manufacturer-specific training available for bottom-climbing procedures |
| C-7.01.04L | demonstrate knowledge of regulatory requirements pertaining to bottom-climbing procedures | identify standards and regulations pertaining to bottom-climbing procedures |
Range of Variables
- components include: mast sections, electrical components, climbing limit sensor, secured dogs, collars, beams, wedges, ladders, hydraulic rams, pumps and hoses
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios
- hazards include: changing weather, personnel in area, obstructions, tripping, falling, electrocution, pinch/crush points, tight working clearances, mechanical failure, poor lighting/visibility
- activities include: preparing and installing support beams, ensuring adequate power cable and grounding is in place, placing shoring to support weight of crane, confirming adequate strength of building material (steel, concrete) to support crane upon engineering approval
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-7.02.01P | verify engineering documentation regarding strength of building material (steel, concrete) to support crane | engineering documentation regarding building material (steel, concrete) is verified to be adequate to support crane |
| C-7.02.02P | check weather conditions before starting and continually monitor changing weather conditions | weather conditions are checked before starting and changing weather conditions are continually monitored during operations |
| C-7.02.03P | maintain radio/cell communication with erection crew | radio/cell communication is maintained with erection crew throughout climb |
| C-7.02.04P | confirm that shoring and tiebacks are in place and adequate to support weight of crane | shoring and tiebacks are in place and adequate to support weight of crane according to engineering and manufacturers’ specifications |
| C-7.02.05P | confirm power cable and grounding are of sufficient length for climb needed | power cable and grounding are of sufficient length for climb needed |
| C-7.02.06P | align mast sections in front of crane | mast sections are aligned in front of crane to ensure that jib remains immobile during climb |
| C-7.02.07P | install climbing unit to mast | climbing unit is installed to mast according to manufacturers’ specifications |
| C-7.02.08P | hoist mast section to climbing unit | mast section is hoisted to climbing unit according to manufacturers’ specifications |
| C-7.02.09P | balance crane | crane is balanced by hoisting mast sections or approved balance weight, changing load radius, and making minor adjustments to swing according to manufacturers’ procedures |
| C-7.02.10P | remove pins or bolts, and transfer weight of crane upper works to climbing frame | pins or bolts are removed so weight of crane upper works is transferred to climbing frame according to manufacturers’ procedures |
| C-7.02.11P | climb upper works to create adequate clearance for new mast section to be installed | upper works is climbed to create adequate clearance for new mast section to be installed according to manufacturers’ procedures |
| C-7.02.12P | pin or bolt in place new mast section and upper works | new mast section and upper works are pinned or bolted in place according to manufacturers’ procedures |
| C-7.02.13P | install additional support components | additional support components are installed as required and according to engineering and manufacturers’ specifications and procedures |
| C-7.02.14P | complete climbing procedures by disconnecting climbing unit and removing or stowing | climbing procedures are completed by disconnecting climbing unit and removing or stowing according to manufacturers’ specifications and procedures |
Range of Variables
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- support components include: tiebacks, collars
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-7.02.01L | demonstrate knowledge of top-climbing equipment and their components, characteristics, applications and operation | identify types of top-climbing equipment and their components, and describe their characteristics and applications |
| describe operating principles of top-climbing equipment and their components | ||
| interpret information pertaining to top- climbing equipment and their components found on drawings and engineering specifications | ||
| C-7.02.02L | demonstrate knowledge of performing top-climbing procedures | identify tools and equipment used to perform top-climbing procedures, and describe their procedures for use |
| identify hazards and describe safe work practices to perform top-climbing procedures | ||
| describe pre-climbing activities | ||
| describe procedures to perform top-climbing | ||
| explain importance of climbing sequence | ||
| describe procedures to balance cranes | ||
| describe effects of weather conditions on top-climbing operations | ||
| C-7.02.03L | demonstrate knowledge of training to perform top-climbing procedures | identify manufacturer-specific training available for top-climbing procedures |
| C-7.02.04L | demonstrate knowledge of regulatory requirements pertaining to top-climbing procedures | identify standards and regulations pertaining to top-climbing procedures |
Range of Variables
- components include: climbing unit, secured dogs, electrical components, hydraulic rams and pumps, fall-arrest components, collars, beams
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios/cell phones
- hazards include: changing weather, personnel in area, obstructions, tripping, falling, electrocution, pinch/crush points, tight working clearances, mechanical failure, poor lighting/visibility
- pre-climbing activities include: top-climbing planning, conferring with climbing team and confirming climbing plan, preparing support beams, ensuring adequate power cable and grounding is in place, ensuring shoring is in place and adequate to support weight of crane, confirming adequate strength of building material (steel, concrete) to support crane upon engineering approval
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-7.03.01P | verify that configuration is acceptable | configuration is verified to be acceptable by crane manufacturer or professional engineer |
| C-7.03.02P | verify NDT inspection of additional components has been completed | NDT inspections of additional components are documented before operation of crane |
| C-7.03.03P | verify that permits have been obtained for reconfigurations | permits have been obtained for reconfigurations |
| C-7.03.04P | check weather conditions before starting and continually monitor changing weather conditions | weather conditions are checked before starting and changing weather conditions are continually monitored during operations |
| C-7.03.05P | maintain radio/cell communication with erection crew | radio/cell communication is maintained with erection crew throughout climb |
| C-7.03.06P | select and use tools and equipment | tools and equipment are selected and used according to task |
| C-7.03.07P | coordinate roles and responsibilities with crew members for reconfiguration | roles and responsibilities with crew members for reconfiguration are coordinated according to site, job and manufacturers’ specifications and procedures |
| C-7.03.08P | inspect components for deficiencies | components are inspected to identify deficiencies |
| C-7.03.09P | erect and dismantle components | components are erected and dismantled according to manufacturers’ specifications and procedures |
| C-7.03.10P | check fluids, operating systems and other components | fluids, operating systems and other components are checked as required by job specifications and manufacturers’ specifications |
| C-7.03.11P | reconfigure LMI, verify limits are set and test limits for new configuration | LMI is reconfigured, and limits are verified they are set and tested according to manufacturers’ specifications for new configuration |
Range of Variables
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios/cell phones, assist crane, fall arrest equipment
- crew members include: erection crew, assist crane operators, crane supervisors
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
- deficiencies include: cracks, faulty welds, bends, dents, splices in power cable, broken wires
- operating systems include: hydraulic, electrical, mechanical, lubrication
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-7.03.01L | demonstrate knowledge of tower cranes, their components, characteristics, applications and operation | identify types of tower cranes and their components, and describe their characteristics and applications |
| describe operating principles of tower cranes and their components | ||
| interpret information pertaining to tower cranes and their components found on drawings and specifications | ||
| C-7.03.02L | demonstrate knowledge of performing crane reconfiguration | identify tools and equipment used to perform crane reconfiguration, and describe their procedures for use |
| identify hazards and describe safe work practices to perform crane reconfiguration | ||
| describe procedures to verify that reconfiguration is allowable by manufacturer or professional engineer | ||
| describe procedures to perform crane reconfiguration | ||
| describe effects of weather conditions on crane reconfiguration | ||
| C-7.03.03L | demonstrate knowledge of regulatory requirements pertaining to crane reconfiguration | identify standards and regulations pertaining to crane reconfiguration |
Range of Variables
- components include: mast sections, machine deck, turntable, apex, counter jib, jib, pendants, counterweights, outrigger, ballast, bolts, pins, trolley, hook, hydraulic cylinders, climbing unit, sheaves, cables, electrical components
- types of tower cranes include: flat top, hammerhead, luffing, self-erecting, articulating
- tools and equipment include: sledgehammers, adjustable wrenches, pin pullers, pliers, pry bars, hydraulic rams, come-alongs, saws, grease guns, rags, radios/cell phones, assist crane, fall arrest equipment
- hazards include: changing weather, personnel in area, obstructions, tripping, falling, electrocution, pinch/crush points, tight working clearances, mechanical failure
- weather conditions include: wind, freezing rain, temperature, snow, lightning, fog
- standards include: CSA Z248, ASME, ANSI
- regulations include: jurisdictional, OH&S
Task C-8 Plans lifts
Task Descriptor
Planning is required for every lift that a tower crane operator performs whether routine or specialty. This could mean a brief conversation with the rigger or a larger meeting with the entire crew and management. A tower crane operator must be able to calculate accurately the load weight and centre of gravity (CoG) of an object as it is vital to the safe operation of tower cranes.
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-8.01.01P | determine weight of load to be lifted | weight of load to be lifted is determined according to source of load weight information |
| C-8.01.02P | verify unit of measurement (metric or imperial) when missing or incorrect on source of load weight information | unit of measurement (metric or imperial) is verified when missing or incorrect on source of load weight information |
| C-8.01.03P | confirm weight of load to be lifted | it is verified that no adjustments, modifications or changes in conditions that may affect weight of load to be lifted have been made |
| C-8.01.04P | determine and apply formulas needed for object shape | formulas are determined and applied according to object shape |
| C-8.01.05P | perform calculation | calculation is performed according to formula |
| C-8.01.06P | compare load calculations to sources of load weight information | load calculations are compared to sources of load weight information to confirm actual weight to be lifted |
| C-8.01.07P | verify load calculations | load calculations are verified by using crane’s electronic scale if equipped |
Range of Variables
- sources of load weight information include: bills of lading, stamped weights, engineered drawings, previous lift history, blueprints
- calculation is: volume times unit weight of material
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-8.01.01L | demonstrate knowledge of procedures used to identify weight of objects and basic shaped loads | identify types of sources of load weight information |
| identify and apply formulas for conversion between imperial and metric systems | ||
| identify factors contributing to load weight | ||
| interpret information pertaining to load weights found in engineering and manufacturers’ specifications | ||
| C-8.01.02L | demonstrate knowledge of procedures used to calculate weight of objects and basic shaped loads | explain importance of determining weight of an object and basic shaped load and its relevance in lifting operations |
| describe procedures used to determine basic shaped loads | ||
| perform calculation and apply formula to calculate weight of objects and basic shaped loads | ||
| identify considerations used to determine weight of objects and basic shaped loads | ||
| C-8.01.03L | demonstrate knowledge of CoG | describe conditions that affect CoG |
| determine CoG of objects | ||
| identify factors contributing to CoG | ||
| perform calculations to determine CoG in objects | ||
| C-8.01.04L | demonstrate knowledge of regulatory requirements pertaining to load weights | identify standards and regulations pertaining to load weights |
Range of Variables
- basic shaped loads include: cubes, cylinders, pyramid, rectangle, pipe
- sources of load weight information include: bills of lading, stamped weights, engineered drawings, previous lift history, blueprints
- factors contributing to load weight include: ice, water, mud, load frozen to ground, lifting in water, snow, crating, wind, incomplete demolition, friction, added components
- calculation is: volume times unit weight of material
- considerations include: volume of object, weight of material, weight of underhook equipment
- factors contributing to CoG include: shifting liquids, ice, water, mud, load frozen to ground, lifting in water, snow, crating, wind, incomplete demolition, friction, component distribution
- standards include: CSA Z248
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-8.02.01P | locate warnings | warnings are located according to load charts, range diagrams and manufacturers’ specifications |
| C-8.02.02P | define working radius | working radius is defined based on crane configuration |
| C-8.02.03P | calculate gross load and net capacity | gross load and net capacity are calculated according to manufacturers’ specifications |
| C-8.02.04P | de-rate crane gross capacity | crane gross capacity is de-rated using various site and regulatory restrictions, and manufacturers’ specifications |
| C-8.02.05P | select load chart | load chart is selected based on crane configuration and lift requirements |
| C-8.02.06P | set configuration of LMI | configuration of LMI is set according to job requirements and manufacturers’ specifications |
Range of Variables
- crane configurations include: jib, parts per line, outrigger, counterweight, ballast, boom, mast height
- lift requirements include: maximum radius, height
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-8.02.01L | demonstrate knowledge of load charts, their characteristics and applications | identify components of load charts, and describe their characteristics and applications |
| C-8.02.02L | demonstrate knowledge of procedures to interpret load charts | interpret components of load charts required to plan lifts |
| identify factors that influence crane capacity in lifting operations and describe their impact | ||
| perform calculations to determine line pull, working load limit (WLL) and minimum parts of line | ||
| perform calculations to determine maximum working radius | ||
| perform calculations to determine capacity deductions found in manufacturers’ notes | ||
| C-8.02.03L | demonstrate knowledge of lifting theory and forces | explain CoG of load and its impact on lifting |
| identify units of measure and symbols pertaining to lifting plans and load charts | ||
| identify and describe lift studies and lift plans | ||
| C-8.02.04L | demonstrate knowledge of regulatory requirements pertaining to load charts | identify standards and regulations pertaining to load charts |
Range of Variables
- components of load charts include: notes (factors affecting capacity), capacity charts, range diagram, technical data, parts of line, weights of deductions, quadrants of operation, crane configurations (on outriggers, counterweight, jib), notes/technical data (line weight calculation/deduction), jib length and radius, deflection
- factors that influence crane capacity include: configurations, capacity deductions, manufacturers’ notes (wind, temperature), engineered lifts
- lift studies include: engineered lifts, lift calculations
- standards include: CSA Z248
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-8.03.01P | coordinate roles and responsibilities with crew members | roles and responsibilities are coordinated with crew members according to site and job requirements |
| C-8.03.02P | sequence activities | activities are sequenced according to job requirements and weather conditions |
| C-8.03.03P | identify load path procedures | load path procedures are identified |
| C-8.03.04P | ensure tasks are within working radius | tasks are confirmed to be within working radius by verifying load chart |
| C-8.03.05P | ensure rigging equipment required is available | rigging equipment required is available according to job requirements |
| C-8.03.06P | identify other equipment in vicinity of work location | other equipment in vicinity of work location is identified |
| C-8.03.07P | select crane configuration | crane configuration is selected according to lift requirements |
Range of Variables
- weather conditions include: wind, rain, temperature, snow, lightning, hoar frost, fog, ice build-up
- crane configurations include: jib, parts per line, outrigger, counterweight, ballast, boom
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-8.03.01L | demonstrate knowledge of planning work procedures for lifts | describe procedures to plan lifts |
| identify hazards and describe safe work practices to consider when planning work procedures for lifts | ||
| identify sequence of job tasks to be performed | ||
| identify lift conditions to be considered in pre-lift planning | ||
| identify components of a pre-lift plan | ||
| C-8.03.02L | demonstrate knowledge of regulatory requirements pertaining to pre-lift planning | identify company policies, standards and regulations pertaining to pre-lift planning |
Range of Variables
- hazards include: overhead obstructions, vehicular traffic, personnel, high voltage lines, other equipment, welding arcing
- lift conditions include: environmental conditions, signalling responsibilities, load weight, tail swing, load path, clearances, ground conditions, lighting/visibility, crane configuration, location and setup
- components of a pre-lift plan include: blocking and matting requirements, ground preparation, communication plan, personnel responsibilities, grounding and bonding requirements, load weight and location of center of gravity, rigging configuration, scheduling, tools and equipment, company and site policies, site drawing, load path procedures, load chart, crane selection, location and setup
- standards include: CSA Z248
- regulations include: jurisdictional, OH&S
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| yes | NV | NV | NV | NV | yes | yes | yes | yes | yes | ND | ND | ND |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| C-8.04.01P | determine weight, size, CoG and shape of load | weight, size, CoG and shape of load are determined |
| C-8.04.02P | determine maximum radius allowed | maximum radius allowed is determined according to load weight and load chart |
| C-8.04.03P | determine other components and equipment needed for specialty lift | other components and equipment needed for specialty lift are determined according to lift requirements |
| C-8.04.04P | coordinate roles and responsibilities with crew members | roles and responsibilities with crew members are coordinated according to site, job requirements and manufacturers’ specifications |
| C-8.04.05P | sequence activities | activities are sequenced according to specialty lift requirements |
| C-8.04.06P | identify load path procedures | load path procedures are identified |
| C-8.04.07P | ensure specialty lift forms are completed | specialty lift forms are completed according to standards, jurisdictional regulations and company policies |
| C-8.04.08P | verify load calculations | load calculations are verified by using crane’s electronic scale if equipped |
Range of Variables
- specialty lifts include: engineered, multi-crane, personnel, center of gravity change, over high energized lines, lifts where the length of sling changes
- standards include: CSA Z248
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| C-8.04.01L | demonstrate knowledge of specialty lifts, their characteristics and applications | identify types of specialty lifts and describe their characteristics and applications |
| C-8.04.02L | demonstrate knowledge of procedures to prepare for specialty lifts | identify hazards and describe safe work practices to consider when preparing for specialty lifts |
| identify sequence of job tasks to be performed | ||
| identify lift conditions to be considered in pre-lift planning | ||
| identify components of a pre-lift plan | ||
| identify sources of load weight information | ||
| C-8.04.03L | demonstrate knowledge of regulatory requirements pertaining to pre-lift planning | identify company policies, standards and regulations pertaining to pre-lift planning |
| identify specialty lift form regulations and standards requirements |
Range of Variables
- specialty lifts include: engineered, multi-crane, personnel, center of gravity change, over high energized lines, lifts where the length of sling changes
- hazards include: overhead obstructions, vehicular traffic, personnel, high voltage lines, other equipment, communication issues
- lift conditions include: environmental conditions, signalling responsibilities, load weight, tail swing, load path, clearances, ground conditions, lighting/visibility, crane configuration, location and setup
- components of a pre-lift plan include: blocking and matting requirements, ground preparation, communication plan, personnel responsibilities, grounding and bonding requirements, load weight and location of CoG, rigging configuration, scheduling, tools and equipment, company and site policies, site drawing, load path procedures, load chart, crane selection, location and setup
- sources of load weight information include: bills of lading, stamped weights, engineered drawings, previous lift history, blueprints, known weights of materials, operator’s calculations
- standards include: CSA Z248
- regulations include: jurisdictional, OH&S