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The Specialty Examinations
for the CCO certification program test the following
knowledge areas relating to the operation of each of these
types of cranes:
- Lattice Boom Truck
Cranes
- Lattice Boom Crawler
Cranes
- Large Telescopic Boom
Cranes (above 17.5 Tons)
- Small Telescopic Boom
Cranes (up to 17.5 Tons)
(Approximately 12% of the test)
(Approximately 30% of the test)
(Approximately 23% of the test)
(Approximately 35% of the test)
DOMAIN 1: SITE
(12% of the test)
1. Know the proper use
of mats, blocking or cribbing and outriggers or crawlers
as they affect the suitability of supporting surfaces to
handle the expected loads of the operation.
2. Know the
limitations of machine clearances, extension of crawlers
or outriggers/stabilizers and counterweights.
DOMAIN 2: OPERATIONS
(Approximately 30% of the test)
1. Know how to inspect
the crane for unsafe conditions, complete required
records and communicate the unsafe conditions to the
proper authority.
2. Know how to pick,
carry, swing and place the load smoothly and safely on
rubber tires and on outriggers/stabilizers or crawlers
(where applicable).
3. Know proper boom
assembly and disassembly techniques:
(a) lattice booms,
(b) extension and retraction of “power pinned” and/or
manual boom “extension”,
(c) erection and dismantling of lattice extension jibs.
4. Know how to react
to changes in conditions that affect the safe operation
of the crane.
5. Know how to shut
down and secure the crane properly when leaving it
unattended.
6. Know how to prepare
the crane for transportation by loading or unloading on
trailers and be familiar with the differences between
rail and barge loading.
7. Know how to move
the crane (no load) safely under its own power:
(a) between job sites,
(b) within job sites,
(c) loading and unloading on trailers.
8. Know the
manufacturer’s specifications for operating in various
weather conditions and understand how environmental
conditions affect the safe operation of the crane.
9. Know how to
properly level the crane.
10. Know how to
perform daily maintenance and inspection.
11. Know how to use
the following operator aids:
(a ) wind indicator,
(b) anti-two block device,
(c) boom angle indicator,
(d) load indicating device,
(e) boom length indicators,
(f) drum rotation indicators.
12. Know the proper
procedures for operating safely under the following
conditions:
(a) traveling with suspended loads,
(b) approaching two-blocking,
(c) operating near electric power lines,
(d) using suspended personnel platforms,
(e) using other than full outrigger/crawler extensions,
(f) lifting loads from beneath the surface of the water,
(g) using various approved counterweight configurations,
(h) handling loads out of the operator’s vision
(“operating in the blind”),
(i) using electronic communication techniques, such as
radios.
13. Know emergency
response procedures for:
(a) fire control,
(b) electric power line contact,
(c) loss of stability,
(d) control malfunction,
(e) two-blocking,
(f) overload,
(g) carrier or travel malfunction.
DOMAIN 3: TECHNICAL KNOWLEDGE
(Approximately 23% of the test)
1. Know the functions
and limitations of the crane and attachments.
2. Know basic crane
terms.
3. Know the basics of
machine power flow systems:
(a) mechanical,
(b) electrical,
(c) pneumatic,
(d) hydraulic,
(e) combination.
4. Know how the boom
hoist and load hoist(s) are driven and engaged to the
power source.
5. Know the
requirements of standard and optional controls.
6. Know the
requirements of pre-operation inspection and
maintenance.
7. Know how to use operational assist
devices which include:
(a) anti-two block,
(b) load moment indicators and rated load
indicators,
(c) outrigger position indicators,
(d) mechanical levels,
(e) boom angle indicators,
(f) load indicating devices,
(g) boom stops and boom hoist disconnect,
(h) radius indicators,
(i) drum rotation indicators,
(j) boom length indicators.
8. Know how to use manufacturer approved
attachments and their effect on the crane.
9. Know the function and safe use of
crawler position (extended or retracted), outriggers,
and/or stabilizers.
10. Know how to assemble and disassemble
boom sections, extensions and jib.
DOMAIN 4: MANUFACTURERS’
LOAD CHARTS
(Approximately 35% of the test)
1. Know the
terminology necessary to use load charts.
2. Know how to use load charts. For example:
(a) the operational limitations of load charts and
footnotes,
(b) how to relate the chart to the configuration of the
crane, crawlers or outriggers extended or retracted, jib
erected or offset, and various counterweight
configurations,
(c) the difference between structural capacity and
capacity limited by stability,
(d) what is included in load chart capacity,
(e) the range diagram and its relationship to the load
chart,
(f) the work area chart and its relationship to the load
chart,
(g) where to find and how to use the “parts-of-line”
information.
3. Know how to
calculate net capacity for allowable configurations of
the crane using the manufacture's load chart.
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