Lg Exc Civexcavatorsamplepages
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Transcript of Lg Exc Civexcavatorsamplepages
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RIIMPO320A
Conduct civil construction excavator operations
excavatorLearner Guide
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May not be reproduced 4
An example of an excavator:
Boom cylinder
Cab
Counter weight
Track roller Carrier roller
Driver wheel Track
Boom Dipper arm cylinder Dipper arm (power arm)
Bucket cylinder
Bucket
Idler wheel
Link
Rod
Quick hitch
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Element 1 Plan and prepare
Where can you nd the jobs work instructions and what do they explain?Question 6
Performance criterion 1.2
Answer: Ask your supervisor. Work instructions explain:
Where the job is
What the job is
How to do the job safely
How to do the job from
start to nish
What tools and equipment
you need
How long the job will take
What to do in unexpected
situations like bad weather
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Easy Guides Australia Pty Ltd19
Element 1 Plan and prepare
What does the safety plan tell you?Question 7
Performance criterion 1.3
Answer: The safety plan tells you how the worksite meets all government rules.The safety plan also tells you about:
Control hazards and risksUse tools, plant and equipment safely
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Element 2
conduct machine
pre-operational checks
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Easy Guides Australia Pty Ltd39
Element 2 Conduct machine pre-operational checks
What pre-operational checks you do before using the excavator?Question 19
Answer: Checks may include:
Performance criterion 2.1
Check the fuel gauge to
make sure the excavator
has enough fuel
Look for leaks under
the machine
Check tyre condition,
tyre pressure and
wheel nuts
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Easy Guides Australia Pty Ltd53
Element 2 Conduct machine pre-operational checks
What problems do you check the hydraulic system for?Question 29
Answer: Look for:
Performance criterion 2.2
Damaged or bent hydraulic rams Leaks Bent rams
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Element 3
operate the excavator
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Element 3 Operate the excavator
You are operating an excavator and it touches live powerlines.
What do you do?
Question 40
Performance criterion 3.1
Answer:
Try to stay calm. Stay in your seat if possible.
Tell other people to keep away.
Try to lower the bucket away from the powerlines.
Ask someone to get the power turned off.
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Element 4
lift, carry and
place materials
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134May not be reproduced
Element 4 Lift, carry and place materials
You want to use the excavator for lifting. What must the excavator have?Question 84
Answer:
The excavator must have an approved lifting lug and the SWL
marked on the boom. The lug must be manufacturer approved.
Do not use the bucket to lift! If the excavator has a quick-hitch
type bucket, take off the bucket rst.
Performance criterion 4.3
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Easy Guides Australia Pty Ltd147
Element 4 Lift, carry and place materials
You are moving a load and the slings shift. What do you do?Question 93
Performance criterion 4.5
Answer:
Lower the load slowly
and x the slings.
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Element 5 Select, remove and ft attachments
What are some attachments you can use on an excavator?Question 98
Performance criterion 5.1
Answer:
Excavating bucket Trench bucket
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Element 5 Select, remove and ft attachmentsQuestion 98 continued
General purpose
bucket
Ripper/scarier
Mud bucket
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Element 6
relocate the excavator
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Element 6 Relocate the excavator
Do you need a permit to drive an excavator on a public road?Question 110
Answer:
You might if the excavator is too heavy,
too long or too wide. Check with your
local transport authority (for example,
VicRoads or the RTA).
Performance criterion 6.1
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Element 7
carry out machine
operator maintenance
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Element 7 Carry out machine operator maintenance
Youve nished work. How do you secure the site?Question 116
Answer:
Set up fences and barricades.
If possible, lock the site.
Performance criterion 7.1