Document 6467160

Transcription

Document 6467160

Aus Loadshifting (ALS) Pty Ltd
Driver Training and Assessing Services
ACN: 151 349745
ABN: 53 151 349745
RTO:91544
Ph:0416 15 5052
Fax: 02 45 742938
www.ausloadshifting.com.au
AUS UOADSHIFTING
Driver Training and Assessing Services
OHSCER205A Operate a Excavator - (LE)
Parts of a
Hydraulic Excavator
Boom
Arm
.Engine/hydraulic pump
Bucket
Counterweight
Cab
Track frame
Shoe
Content of this booklet:
1.
2.
3.
4.
Summary Questions and example answers for the knowledge component
Performance component
Rule of thumb and practice formulas
Revision questions
RTO 91544 22112011
Page 1 of 1
LE 23
Aus Loadshifting- 0416 15 5052
Licence to operate an Excavator
Questions and Answers- Summary Student InformationIf you have RPL questions 1-23, 75-96 and 112-119
25
A
B
What must be provided on an excavator before it is used as a crane?
A manufacturer's approved lifting lug with SWL marked on the machine.
A manufacturer's approved lifting lug with SWL marked on the machine.B185
26
If a single wire in a sling was broken could you use the sling? Explain
your answer.
Yes. You can use the wire rope sling provided that the one wire is not broken immediately
below or above a terminal or end fitting - then it cannot be used.
Yes. You can use the wire rope sling provided that the one wire is not broken immediately
below a terminal.
A
B
PLAN WORK
Performance criteria 1.2.1 ( 9 including 4 with a star)
27
A
B
What underground services would you check for before starting to excavate?
Check for power, telephone, gas, water, sewer, drainage, and fibre optic cable lines.
Check for power, telephone, gas, water, sewer, drainage, and fibre optic cable lines.
28
A
B
Who should be contacted in order to find out the location of underground services?
The site supervisor who will contact the supply authorities for council maps of the site.
The site supervisor who will contact the supply authorities for council maps of the site,
supervisor
29
Name six hazards that must be checked on the work site before
operating the excavator?
•Powerlines Trees, •Bridges, Ôverhead service lines* Surrounding buildings and structures
•Obstructions* other equipment* Dangerous materials
• Underground Service Gas, electricity, sewerage, water, Communication lines)
•Personnel •Ground conditions/recently filled trenches
•Powerlines Trees, -Bridges, -Overhead service lines -Surrounding buildings and structures
•Obstructions -other equipment -Dangerous materials
• Underground Service Gas, electricity, sewerage, water, Communication lines)
•Personnel •Ground conditions/recently filled trenches •hazard chemicals
A
B
30
A
B
A
B
What is the minimum distance any part of the excavator is allowed to operate from:
a) Distribution powerlines
at least 2 metres from domestic powerlines
at least 2 metres from domestic powerlines
b) High voltage transmission lines
at least 6 metres from high voltage transmission lines.
at least 6 metres from high voltage transmission lines.
NOTE: Assessors must ensure that the applicant is aware of State Authority regulations.
Page 4 of 20
31
A
B
32
A
B
33
What precautions should you take when cutting a trench across a footpath?
Obtain information from relevant authorities who may run services under the footpath
Excavate towards any underground services, slowly
Provide appropriate barricades and signs.
Council Permit, Service Check, Barricades, Signs and lights
If using an excavator to lay pipes in a trench, what precautions should be taken?
An approved lifting lug must be used and the SWL must be marked on the machine.
Persons are to be cleared from the trench where the pipe is to be laid.
An approved lifting lug must be used and the SWL must be marked on the machine.
Persons are to be cleared from the trench where the pipe is to be laid.
What precautions would you take if a person were in a trench while
you are lowering pipe into the trench?
A
Ensure the person is not under the load being lowered and is standing well clear of
either end of the pipe.
B
Ensure the person is not under the load being lowered and is standing well clear of
either end of the pipe.
34
A
Name five (5) site hazards checks that you would make of the work area?
• Hidden holes -Drop offs -Embankment 'Overhead obstructions •Underground Services
•Overhead power lines -Telephone lines -Other obstructions that could be dangerous
•Personnel -Plant and Equipment
• Services -People -Pipes -pits -Trees -Traffic -Has chemicals
B
35
A
B
36
A
B
37
A
B
What is the danger of starting and running an internal combustion engine in an
enclosed space?
Exhaust fumes from the internal combustion engine in an enclosed space can kill.
Exhaust fumes from the internal combustion engine in an enclosed space can kill.
What action must be taken before starting up and whilst operating an
internal combustion engine in an enclosed space?
The "enclosed space' must be adequately ventilated.
The "enclosed space' must be adequately ventilated.
What must be provided and maintained on the exhaust of an internal
combustion engine when operated in a confined space?
An approved exhaust control unit, catalytic converter (scrubber).
An approved exhaust control unit, catalytic converter (scrubber).
Page 5 of 20
38
A
B
Why is it important to keep the floor plates free from oil, grease and tools?
To prevent the foot plates from becoming slippery and causing operator to slip
when mounting or dismounting To prevent the tools from fouling controls.
To prevent the foot plates from becoming slippery and causing operator to slip
when mounting or dismounting To prevent the tools from fouling controls.
39
What must be provided to prevent a person falling into a trench?
A
Barricades, guardrails or fencing.
B
Barricades, signs and lights
40
A
B
When should hearing protection (ear muffs) be worn?
When the noise level could contribute to the loss of hearing (e.g. above 85 dba).
When the noise level could contribute to the loss of hearing (e.g. above 85 dba).
41
A
B
When a danger exists on a site what should be posted or erected to warn
people of the danger?
Warning signs barricades, guardrails or fencing.
Warning signs barricades, guardrails or fencing.
42
A
B
When should an operator wear a safety helmet?
Where there is a possibility that the operator could be struck on the head.
Where there is a possibility that the operator could be struck on the head.
43
When would you be required to shore an excavation?
A
When the excavation is greater than 1.5 metres in depth.
B
When the excavation is greater than 1.5 metres in depth.
Unsafe Ground
What is the minimum type of footwear that an operator should wear to
operate loadshifting equipment?
Footwear that encloses the foot and has a non-slip sole.
Footwear that encloses the foot and has a non-slip sole.
44
A
B
45
A
B
Under what conditions can a passenger ride on a machine with the operator?
Only if a special seat and seat belt has been provided within the confines of the
machine for a passenger.
Approved seat and seat belt. Fitted inside machine.
Page 6 of 20
46
A
B
How do you calculate the cubic capacity of the bucket of an excavator?
L x W x Ht
2
Length x Width x Height
2
47
What are two conditions that would result in a trench shield or shoring been used?
A
A trench into which a person is to enter which is 1.5 metres or more in depth &
where the soil is unstable or backfilled.
B
A trench into which a person is to enter which is 1.5 metres or more in depth &
where the soil is unstable or backfilled.
48
A
B
49
A
B
You have to cut an excavation deeper than 1.5m. The workers have to enter this
excavation and there is a likelihood that the walls may collapse.
Using the excavator what could you do to make the excavation safe to enter?
Bench, batter sides, drop in trench shields.
Bench, batter sides, drop in trench shields.
You have to load a truck with large boulders using your excavator.
You are on the same level as the truck. What are the dangers?
As you raise the bucket the boulders could tip out of the bucket onto the truck.
Boulder can hit truck
Performance criteria 1.2.3 ( 2 questions)
50
A
B
When travelling on a sloping surface which is the safest route of travel?
Directly up or down a sloping surface.
Directly up or down a sloping surface.
51
A
B
What gear should be selected to travel down a steep sloping surface?
The lowest possible gear.
Lowest possible gear
52
What hazards would you check for on a travel route before moving the
excavator to perform work?
• Hidden holes -Drop offs -Embankments -Overhead obstructions -Underground services
•Overhead power lines -Telephone Lines -Other obstructions that could be dangerous
•Personnel -Plant equipment
-People •Powerlines -Pits -Pipes -Trees -Traffic -Trenches -Services -hazard chemicals
A
B
53
A
B
To travel down or up a steep incline would you change gears on the
incline or select the appropriate gear before travelling on the incline?
Select the appropriate gear before travelling on the incline.
Select the appropriate gear before travelling on the incline.
Page 7 of 20
Performance criteria 1.2.4 ( 1 question)
54
A
B
What documentation would you be required to obtain from an authorised person
to operate an excavator in a hazardous working area?
The required hazardous work permits.
The required hazardous work permits.
55
A
B
What must you obtain before digging up a footpath with an excavator?
A permit from the relevant local government authority.
Council permit and service check
56
A
B
What attachment would you fit to an excavator to break up reinforced concrete?
Hydraulic hammer attachment.
Hydraulic hammer attachment.
57
When an excavator is used in a demolition process what must be provided on the
machine to protect the operator?
A falling object protective structure. (FOPS)
A falling object protective structure. (FOPS) and seat belt
A
B
58
A
B
59
A
B
60
A
B
Name four types of attachments that may be used on an excavator?
• Rock bucket • Excavator bucket -Hydraulic hammer, • Magnet attachment -Trench bucket
• Mower attachment -Approved lifting lug for slinging loads -Log grapple -Blade grader
• Rock bucket -Hydraulic hammer -Magnet attachment -Trench bucket
On a construction site who would you contact to confirm the job requirements
for the work to be performed with the excavator?
The person in charge on the site or other person authorised to confirm job requirements.
The site supervisor
How do you select the appropriate bucket to perform the excavation work?
Type of material to be excavated
Size of the excavation or trench to be considered.
Type of material to be excavated
Size of the excavation or trench to be considered.
Page 8 of 20
Aus Loadshifting- 0416
15 5052
CHECK CONTROLS AND EQUIPMENT:
Performance criteria 1.3.1 (9 including 2 with a star)
61
A
B
62
What action would you take if you noticed a bulge form in one of the
machine hydraulic hoses?
Stop operating, tag the machine and make sure the hose is replaced before the
machine is used.
Stop Tag report to Boss. Do not use until repaired
^
A
B
When should the operator carry out tests, checks and inspections on the
excavator that is to be operated?
Daily before use.
Daily before use.
63
Describe how you would safely mount/dismount an excavator.
^
A
Facing the machine use the grab-rail or handrail and steps to mount/dismount the
machine (three points of contact)
B
Face machine use three points of contact- use handrails
64
A
B
Where can the start up/shut down procedures for each excavator be found?
In the manufacturer's manual.
In operator manual
65
B
Before performing the work with an excavator, what should you do if
you have not used the machine before?
Read the operator's manual to familiarise yourself with the machine
(e.g. controls and decal information).
Get used to controls of the machine, Training by experienced person
66
A
B
On mounting the excavator what should you do before attempting to start the engine?
Make sure controls are in neutral or park and park brake is on.
Make sure controls are in neutral or park and park brake is on.
67
Once sitting in the operator's seat and before driving off, what should you do
for safety and comfort?
A
B
Adjust seat until comfortable, adjust mirror (if applicable) and secure safety belt.
Adjust seat, mirrors and seat belt if fitted
68
What should be referred to for the correct start up and shut down
procedure for the equipment?
Always refer to the manufacturer's operation manual for the correct procedure.
Operators manual
A
A
B
Page 9 of 20
69
A
B
Before moving off what should be done with grounded attachments?
Attachments should be raised to the correct travelling height or stowed.
Raised to a safe height- Clear of guard
70
A
Before reversing an excavator, what action should you take?
Look back over both shoulders to ensure the path of travel is clear. Sound horn twice
before moving unless there is a reversing/motion alarm fitted.
Look back over both shoulders sound horn twice unless fitted with Reverse Alarm,
check paths clear.
B
71
A
B
Your excavator has run out of diesel, you refill the tank but the motor will not start.
What could be the possible cause?
Air in the fuel system and the fuel system needs bleeding.
Air in the fuel system and the fuel system needs bleeding.
Performance criteria 1.3.2 ( 1 question) with a star.
72
What action would you take with damage and defects found on the machine?
A
Tag the machine, put it out of service and report the damage and defects
^V
to the authorised person
B
Tag report to boss. Do not use until repaired.
UNIT 2 - SHIFT LOAD: Performance criteria 2.1.1 ( 2 questions) with a star.
73
Why are you not allowed to hoist persons with the bucket of an excavator?
A
The manufacturer did not design the machine to hoist persons and it is against
^V
all safe operating procedures.
B
It was not designed to hoist people and is against safe operative procedures/regulations
74
Why are you not allowed to attached slings to the teeth of the bucket?
A
You may break off the teeth and/or the sling could slip off the teeth and cause the
^V
load to fall, which may injure or kill someone or damage the load. It is against regulations
to sling loads using an excavator without the appropriately approved lifting connection
fitted
B
Teeth may break off/Drop load kill someone. Against regulations. Use approved lifting lug.
75
A
B
You are required to operate an excavator on soft and uneven ground. What effect
would this have on the load you could raise and carry with the excavator?
It would reduce the weight of the load that could be safely carried.
Reduces the load that could be safely carried
Page 10 of 20
>*
76
A
B
How would you establish the load that can be safely lifted by an excavator?
By the load chart on the excavator.
By the load chart on the excavator.
77
What must be provided on an excavator to attach slings so that
the excavator may be used as a crane?
A specially designe`”ifà3
d e s i g n & d
A
84
A
B
85
A
B
A four legged bridle sling arrangement is attached to a rigid load. How many
and which sling legs would be assumed to support the load?
Two opposite diagonal slings must be capable of supporting the load.
Any two diagonally opposite slings
What effect does a choker hitch around a round load have on the SWL
for a wire rope sling?
Reduces the SWL/WLL by 25 per cent or to 75 per cent of SWL/WLL
25% Reduction in SWL
Rule of thumb formula ( 2 questions)
86
A
B
State the rule of thumb formula to calculate the SWL of wire rope.
Diameter in mm squared x 8 = SWL in kg.
Dmm x Dmm x 8 = SWL kgs
87
State the rule of thumb formula to calculate the diameter of the wire
rope sling required to lift a specified load?
Square root of load in kg/8 = Diameter mm.
Square root of load divided by 8 = mm
A
B
88
A
B
State the rule of thumb formula to calculate the SWL of a grade 80
lifting chain?
Diameter in mm squared x 32 = SWL in kg or Diameter in mm squared x 0.4 x grade = SWL in kg.
Dmm x Dmm x80 x .4 = SWL kgs
89
A
B
State the formula for calculating the WLL of grade 30 to grade 75 lifting chain?
Diameter in mm squared x 0.3 x grade of chain = SWL in kg.
Dmm x Dmm x G x 0.3 = SWL in kg
SWL of slings (select 4)
90
A
B
What is the SWL of a 12mm diameter wire rope sling?
12mm x 12mm x 8fswr = 1152 kg.
12 mm x 12 mm x 8 = 1152 kg
91
A
B
What is the diameter of a single leg wire rope sling that is required to hoist a
2048 kg load
Square root of (2048/8) = 16 mm.
Square root of 2048 divided by 8 = 16 mm
92
A
B
What is the SWL of flexible steel wire rope (FSWR)16mm in diameter
16mm x 16mm x 8 = 2048kg
Page 12 of 20
Questions and Answers- Summary Student InformationIf you have RPL questions l-23/ 75-96 and 112-119
93
A
B
When a sling is reeved around a square load how is the WLL/SWL altered?
Reduces SWL/WLL by 50%.
50% reduction in SWL
94
What is the SWL of an 8mm diameter flexible steel wire rope
(FSWR)?
8 mm x 8mm x 8 = 512 kg
Options
242 kg
800 kg
2592kg
5.5mm -242 kg
10mm - 800 kg
18mm - 2592kg
A
B
A
B
95
A
B
What is the SWL of a 12mm mild steel chain
12mm x 12mm x 30g x 0.3sf = 1296 kg.
12 mm x 12mm x 3 0 x 0 . 3 = 1296 kg.
96
A
B
What is the SWL of a 7.1mm diameter 80-grade chain?
7.1x7.1x32 = 1613.12 kg.
7.1mm x 7.1mm x 80 x .4 =1613.12 kg
For variation of question 96 use:
.8mm grade 80
.10 mm grade 30
.13mm grade 80
Variation
2048 kg
900 kg
5408 kg
2048 kg
900 kg
5408 kg
A
B
97
What is the danger of slewing with a load when the turntable is not level?
A
The machine could overturn
B
The machine could overturn
98
It permissible for loads to be slewed over the cabin of the truck been loaded?
Explain your answer.
No. The driver of the truck may be in the cabin and in the event of an accident the
bucket could strike the cabin, or load could be dropped on the cabin.
No. Driver may be in cabin. If the load falls it could strike the cabin
Page 13 of 20
A
B
99
A
B
100
List three precautions that must be considered when dumping material into a truck
using an excavator?
• The truck must be correctly positioned
• No load must pass over the cabin of the truck
• A layer of soil must be laid first to take the impact if large rocks are to be loaded
• The loaded bucket must be within the SWL of the machine.
• The truck must be correctly positioned
• Don't load over cabin
• A layer of soil must be laid first
A
B
What action should be taken if you discover a large rock in the side of a trench
that you are digging?
The Rock should be removed
Remove the rock immediately
101
How far must people be kept away from the excavator when it is digging?
A
The operating radius of the machine.
B
Outside operating radius of machine- in view of operator
102
Name two methods that should be used to prevent a cave in of a trench or excavation?
A
Shoring, battering, benching or trench shields,
B
Shoring, battering, benching
103
What would be the indications that you are excavating quiet close to an underground
service?
Observe the spoil. The appearance of the following foreign materials
is an indication that the area has been previously excavated:
A
• Crushed blue metal -Plastic tape 'Clean sand -Sand bags -Broken tiles -Moisture
Any other unusual material
B
• Moisture -Crushed blue metal -Plastic tape -Clean sand
104
B
While excavating you suspect there could be an underground service in the area of
the excavation, what action would you take?
Stop operating immediately and hand dig to investigate further and check relevant
statutory authority maps and plans.
Stop operating hand dig and check council maps
105
A
B
How high must the bucket be kept above the ground when driving forward?
Only high enough to provide ground clearance at all times.
High enough to clear obstacles
A
Page 14 of 20
106
The load you are going to lift is likely to swing how would you prevent
this from happening?
A
Attach tag lines to the load.
B
Attach tag lines to the load.
107
Before reversing a machine what precaution should be taken?
A
Look back over both shoulders to ensure the path of travel is clear.
Sound horn twice before moving unless there is a reversing/motion alarm fitted.
B
Look over both shoulders- sound horn twice unless fitted with a buzzer. Check pathway clear
108
When loading trucks using an excavator, where should the truck driver and other
observers be?
A
All persons must be in view of the operator and at a safe distance from the loading operation.
B
In view of the operator and a safes distances from Loading operations
109
What is the minimum diameter size tag that can be used to control loads?
A
Not less then 16 mm diameter
B
16mm
110
How are vehicles/machines stopped from coming too close to an excavation?
A
By using barricades and warning signs.
B
By barricades and warning signs lights
111
What are the dangers of driving your excavator close to the edge of an excavation?
A
The excavation could collapse causing the excavator to overturn or to fall into the excavation.
B
The excavation could collapse. Tip machine over
112 Interpret the following Signal
A
Stop
B
Stop
113
Interpret the following Signal
A
Boom Down
B
Boom Down
Page 15 of 20
114
A
Boom up
B
Boom up
115
A
Slew Right
B
Slew Right
116
A
Slew Left
B
Slew Left
117
A
Retract boom
B
Retract boom
118
A
Extend boom
B
Extend boom
A
Travel and traverse
B
Travel and traverse
120 How far away from an excavation must material be dumped?
A
^
Not closer than 1 metre with material coming to rest no closer than 0.5 metres
from the excavation.
B
At least 1 metre not falling within 0.5 metres from excavation
121
How would you dismount a machine that contacted live power lines, which could
not be released, or the power turned off?
A
Jump well clear of machine ensuring contact with the ground and machine is not
at the same time.
B
Jump well clear without contacting the ground and machine at same time
Page 16 of 20
^
122
If the slings shifted on a load been hoisted, what action would you take?
A
Carefully lower the load to the ground and have the slings re-positioned and secured.
B
Lower load to ground re-position slings
123 If you accidentally damaged an underground electrical cable, whom would
you immediately contact to render the power supply safe?
A
Supervisor who would contact the electrical supply authority.
B
Supervisor and Electrical supplier
124
The excavator you are operating overheats and needs to be checked for coolant
level. What precautions would you take prior to removing the radiator cap and
topping up the coolant?
A
Allow the machine to cool down, use a cloth to protect from hot water burns and remove the
radiator cap slowly.
B
Allow machine to cool down, remove cap slowly protect yourself from burns
125
If you are operating an excavator and it makes contact with powerlines what should you
do?
A
• Stay calm, remain in seat, warn others to keep away, try to break contact by I
lowering bucket (if possible), try and get someone to switch off the power
• If it is unsafe to remain on the machine -jump well clear of the machine,,
don't make contact with the ground and the machine at the same time.
If you have made contact with underground power cables, be aware the area around
the machine could be electrified.
• Remain a safe distance from the machine and warn others to keep clear.
Have someone notify the site manager/supervisor who should report immediately
to the appropriate authority.
B
id
-Stay calm ,trys ar'Ö6†°t%à@ power
UNIT 3 - SHUT DOWN EQUIPMENT Performance criteria 3.1.1 (3 questions)
126
Name three areas where you would not park the excavator
A
Access ways, near overhangs, refuelling sites, tidal or flood areas, adjacent to an excavation.
B
Access ways, refuelling sites, flood areas, near excavation
127 When leaving the excavator what should be done with all hydraulically
raised attachments?
A
Attachments should be lowered with the cutting edge flat on ground and pressure
removed from hydraulic lines.
B
Lower all attachments to ground- release hydraulic pressure
128 What type of surface is the ideal type to park an excavator on?
A
A firm level surface.
B
Firm level
129
What is the danger of parking near an excavation?
A
The weight of the excavator could cause the excavation to cave in, particularly
if the ground is effected by rain.
B
Excavation could cause a cave-in an, tip machine over
130
A
Describe the correct way to park an excavator.
Park on level ground, apply park brake or place in park, lower bucket to ground.
with cutting blade resting on the ground, turn off machine
B
Park on level ground apply brakes. Lower all attachments, remove key cutting edge flat
Performance criteria 3.1.3 (1 question)
131 What post-operational checks of an excavator should the operator carry out?
A
Check the machine and equipment for defects and wear. Check the oil, fuel and water levels.
B
Check for defects, check oil fuel and water levels.
Page 18 of 20
SECURE SITE: Performance criteria 3.2.1 ( 2 questions)
132
What shall be provided when an excavator has to be parked on or protrudes on to an
access way?
A
Barricades, Lights and signs
B
Barricades, Lights and signs
133
For what reason should the key be removed from ignition of the machine?
A
To prevent unauthorised movement
B
To stop unauthorised use
134
A
Before leaving the site what must be provided to restrict access to the site?
Barricades or fences,
B
Barricades, lights and signs
135
List eight things that must be done when parking the machine?
A
• Parked away from access ways
• Overhangs
• Fuelling site
• Parked away from excavations and trenches
• Parked clear of fire hazardards
• Parked clear of entrances, exits
• Parked away from fire fighting and electrical equipment
• Parked on firm level ground or if on an incline facing up the slope
• Lower bucket with cutting edge on ground
• Engine stopped in accordance with manufacturer's operation manual
B
(idle engine before turning off)
• Secure parking brake or leave in park position
• Remove keys.
• Park away from access ways
• Fuel sites
• Excavations
• Trenches
• Fire hazards
• Overhangs
• Exits
• Electrical equipment
Page 19 of 20
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Formative Assessment for RTO 91544
Loadshifting^x Equipment
i i
OHSCER205A - Operate a Excavator
(LE)
Part 1
Performance Assessment
RTO 91544_02112011
Page 1 of 7
LE 24
Unit 1: Conducted Routine Checks
1. Conduct routine checks on excavator
(demonstrated at least 7 elements)
Q Complete walk around machine
Q Load chart
L) Check underneath machine for any water or oil leaks
Q Tyre condition and pressure or track condition / tension
Q Fuel
Q Oil levels in slew motor (if applicable)
[_) Engine oil
1—I hydraulic oil level
Q Air pre-cleaner
Q air filter / indicator
Q coolant
Q Battery Security, water level and cleanliness
2. Visual checks of structure/ attachment for defects
>*
Q Attachments for condition, damage and security
Q Quick hitch attachment/ safety locking device
Q Falling objects protective structure (FOPS)
01 Roll-over protective structure (ROPS)
Q Any loose nuts, bolts and couplings
Q structure damage
Q Bucket for any damage, missing, worn or loose teeth
[_) Cutting blades
Q Check grease fittings and grease pins
Q hoses, fitting and hydraulic rams for oil leaks
Q Connections for security of pins or keeper plates
RTO 91544_02112011
Page 2 of 7
LE_24
3. Checks other equipment for defects
>*
Q Approved lifting lug
Q wire slings
Q chain slings
D Synthetic slings
Q Shackles
Q other lifting gear
Plan Work and Check Equipment
4. Inspect site and plan work: All hazards are identified where
Applicable (demonstrated at least 8 elements)
Q Powerlines
L-l trees
Q overhead services
Q Bridges
Q obstructions
Q personnel in the area
Ll Surrounding buildings
Q dangerous materials
Q Other equipment in the area
Q recently filled trenches
Q Underground services
5. Conducts pre-operational start-up checks in accordance with
manufacturer's specifications/ operating manual :
Q Window clean
Q mounts correctly
Q adjust seat
Q Fasten seat belt
Q park brake on
Q gauges
Q Transmission in neutral
Q start engine
01 check steering
O Movement attachments
Q clear for travel
Q Warning devices/ warning light / horn Q Foot brake moving forward and reverse
Q Parking brake moving forward and reverse
RTO 91544_02112011
Page 3 of 7
LE_24
6. Plans route and controls hazards: All hazards are identified
and controlled (demonstrated at least 2 elements)
>*
Q For loads being moved
Q Traffic control considered
Q Appropriate PPE for the job and site requirements: e.g Steel cap shoes,
high visible clothing and hard hat
Unit 2: Shift Load
7. Fits appropriate equipment for the task:
Q Suitable tools used
Q change buckets
Q Correct procedure adopted
>*
Q secures catches
C_l work safely
8. Drives to the work area : (demonstrated at least 4 elements)
>*
Q Select correct controls Q raises attachments smoothly
Q Ensures travel direction clear of personnel and obstacles
Q Travels at safe speed
Q Carries bucket at safe travelling height and crowed back
RTO 91544_02112011
Page 4 of 7
LE_24
9. Operates Excavator: Sets up excavator and excavates
Applies brake
ensures turntable is reasonably level
Checks control movements
smoothly operates controls
Completes task in logical sequence
t— I Moves load safely
Crowds bucket to fill
picks up material
Competently shift material
equipment operated at a safe speed
C_l Ensure direction of slew is clear
Uses appropriate path of travel
Cuts trench to specifications
Moves load safely
Demonstrates excavation around a pipe
ensures direction of travel clear
Minimises spillage and ground damage
smoothly raises and dumps load
Has the truck positioned for easy loading
Loads placed to ensure stability
Approaches truck (or trench) correctly
maintains stockpile and working surface
[_] Repositions bucket ready for reload
Q lowers load to designated location
L_l Personnel and plant clear of operating radius / area
Q Deposits material the required distance from excavation
10. Identifies the following signals:
Stop - hand
Slew right- hand
RTO 91544 02112011
boom up - hand
Ql boom down - hand
Q Slew left - hand
travel and traverse
Page 5 of 7
LE 24
11.
Consolidates and levels surface
D Consolidates fill with excavator
Q levels surface with bucket blade
LI Excess fill for natural compaction
Q maintain level surface to work from
Unit 3: Shuts Down Equipment and Secures Site:
12.
Shuts down equipment and secures site:
^
Q Parks equipment in a suitable location away from danger areas
Q Attachments lowered to the ground
Q teeth/ cutting edge of bucket on ground
D Neutralises controls
Q applies parking brake
Q Idles down, shuts down and locks ignition Q moves controls to release pressure
(—1 Applies safety lock
Q dismounts correctly
RTO 91544_02112011
Page 6 of 7
Q Removes the key
LE_24
Formative assessment summaryThese are the results you will need to be deemed
competent:
Knowledge Assessment
Number of
Operational
Critical
Area Unit
questions
required
Number of
Critical
achieved
Number of
non-critical
Required
1
16 (RPL 4)
21 (RPL 8)
2
12(1)
18 (RPL 15)
3
0
5 (RPL 0)
Unit
Competent
Not yet competent
2
1
3
Performance Assessment
Number
Operational
Area Unit
required
1
5
2
6
3
1
Unit
Competent
Not yet competent
RTO 91544 02112011
1
2
Number of
non-critical
achieved
Number achieved
3
Page 7 of 7
LE 24
2
• '--;
AUS LOADSH1FTING
Phone: 0416 15 5052
WWW.ausloadshifting.com.au
Index:
SWL = Safe Working Load
D = Diameter
G = Grade
SF = Safety Factor
KG= Kilograms
MM= Millimetres
FSWR = Flexible steel wire rope
Rope:
Dmm x Dmm = SWL kg
FSWR:
Dmm x Dmm x 8 = SWL kg
Chain:
Dmm x Dmm x G x SF = SWL kg
Codes
Grade
30
L
M
P
S
40
60-75
J
T
V
80
100
1
j
50
(8 = factor)
(G x SF = factor)
1
L
f
.3
4
Sling Dmm needed for specific load
Load (kg) -=- F = Dmm
(Loader backhoe is in tonnes)
E.g
FSWR V Load (kg) -r 8 = DMM
ChainV Load (kg) -=- (G x SF) = DMM
Example to lift 2048 kg with FSWR
2048kg -=- 8 = 256 V = 16mm
Example to lift 2048 kg with 80 grade chain
2048kg -=- 32= 64 J~^ 8mm
(80 x .4 = 32)( G x SF)
RTO 91544_22112011
Page 1 of 1
Gen_06
Trading under the RTO banner of- 91544
OHSCER205A Operate an Excavator
Formulas- Student Revision
Student Name:
FSWR SWL KG
Rule of thumb formula:
10mm
8mm
6mm
12mm
16mm
20mm
22mm
Chain SWL KG
10mm
80q
12mm
60g
8mm
30-60g
16mm
80g
8mm
80g
12mm
80g
RTO_91544_formulas revision 16092011
Page 1 of 2
Gen 07
Trading under the RTO banner of- 91544
Formulas- Student Revision
FSWR Diameter Needed
2048 kg
5000 kg
4500 kg
3500 kg
4.5 tonne
3.2 tonne
RTO_91544_formulas revision 16092011
Page 2 of 2
Gen 07
Trading under the RTO banner of -91544
Revision All questions- Student
Rpl questions 1 to 23, 75 to 96 and 112 to 119
Name:
Date:
CHECKS.
1
What precautions must be taken when inspecting under a raised attachment?
Name three defects to look for when inspecting the hydraulic system.
When should slings be inspected?
What % wear in a shackle would cause it to be discarded?
What action should you take with tracks that are loose?
How would you know when the machine that you are operating should be serviced?
Why are you not permitted to join a chain sling with a bolt?
RTO_91544_revision all questions 16092011
Page 1 of 23
LE 11
What percentage of broken wires within a rope lay or eight diameters of a wire
rope sling would cause it to be discarded?
List six defects that would condemn a flexible steel wire rope (FSWR)
from safe use?
10
List six defects that would condemn a lifting chain and hook from safe use?
11
What must you do if the SWL tag is missing from the chain sling?
12
How do you fill machine tyres with water ballast?
13
What defects would you look for when carrying out the external check
on the bucket of an excavator?
RTO_91544_revision all questions 16092011 Page 2 of 23
LE_11
14
What defects would you look for on the hydraulic rams and hydraulic
pressure hoses?
15
When would you check the excavator transmission fluid?
16
What checks would you conduct on the tracks of an excavator?
17
How would you check the tension on the tracks of an excavator?
18
What is the minimum and the maximum track sag allowable?
19
How would you find out the correct track sag or tension for a specific machine?
20
What effect would a hydraulic leak in the quick hitch line have on the
security of the bucket on an excavator?
Page 3 of 23
LE 11
21
What would you look for on an attachment to ensure it will not fall off?
22
What action would you take if during the routine check you found excessive wear
in the power arms and connections that made the excavator dangerous to operate?
23
What would you do if a strand were broken in a flexible steel wire sling?
24
What must be done to a lowered bucket before travelling on a road?
25
What must be provided on an excavator before it is used as a crane?
26
If a single wire in a sling was broken could you use the sling? Explain
your answer.
^^^^^^^
Page 4 of 23
LE_11
PLAN WORK
27
What underground services would you check for before starting to excavate?
28
Who should be contacted in order to find out the location of underground services?
29
Name six hazards that must be checked on the work site before
operating the excavator?
30
What is the minimum distance any part of the excavator is allowed to operate from:
a) Distribution powerlines
b) High voltage transmission lines
NOTE: Assessors must ensure that the applicant is aware of State Authority regulations.
31
What precautions should you take when cutting a trench across a footpath?
LE 11
32
If using an excavator to lay pipes in a trench, what precautions should be taken?
33
What precautions would you take if a person were in a trench while
you are lowering pipe into the trench?
34
Name five (5) site hazards checks that you would make of the work area?
35
What is the danger of starting and running an internal combustion engine in an
enclosed space?
36
What action must be taken before starting up and whilst operating an
internal combustion engine in an enclosed space?
37
What must be provided and maintained on the exhaust of an internal
combustion engine when operated in a confined space?
Page 6 of 23
LE_11
38
Why is it important to keep the floor plates free from oil, grease and tools?
39
What must be provided to prevent a person falling into a trench?
40
When should hearing protection (ear muffs) be worn?
41
When a danger exists on a site what should be posted or erected to warn
people of the danger?
42
When should an operator wear a safety helmet?
43
When would you be required to shore an excavation?
44
What is the minimum type of footwear that an operator should wear to
operate loadshifting equipment?
Page 7 of 23
LE_11
Revision AM questions- Student
45
Under what conditions can a passenger ride on a machine with the operator?
46
How do you calculate the cubic capacity of the bucket of an excavator?
47
What are two conditions that would result in a trench shield or shoring been used?
48
You have to cut an excavation deeper than 1.5m. The workers have to enter this
excavation and there is a likelihood that the walls may collapse.
Using the excavator what could you do to make the excavation safe to enter?
49
You have to load a truck with large boulders using your excavator.
You are on the same level as the truck. What are the dangers?
50
When travelling on a sloping surface which is the safest route of travel?
Page 8 of 23
LE_11
51
What gear should be selected to travel down a steep sloping surface?
52
What hazards would you check for on a travel route before moving the
excavator to perform work?
53
To travel down or up a steep incline would you change gears on the
incline or select the appropriate gear before travelling on the incline?
Performance criteria 1.2.4 ( 1 question)
54
What documentation would you be required to obtain from an authorised person
to operate an excavator in a hazardous working area?
55
What must you obtain before digging up a footpath with an excavator?
56
What attachment would you fit to an excavator to break up reinforced concrete?
Page 9 of 23
LE 11
57
When an excavator is used in a demolition process what must be provided on the
machine to protect the operator?
58
Name four types of attachments that may be used on an excavator?
59
On a construction site who would you contact to confirm the job requirements
for the work to be performed with the excavator?
60
How do you select the appropriate bucket to perform the excavation work?
CHECK CONTROLS AND EQUIPMENT:
61
What action would you take if you noticed a bulge form in one of the
machine hydraulic hoses?
62
When should the operator carry out tests, checks and inspections on the
excavator that is to be operated?
LE_11
63
Describe how you would safely mount/dismount an excavator.
64
Where can the start up/shut down procedures for each excavator be found?
65
Before performing the work with an excavator, what should you do if
you have not used the machine before?
66
On mounting the excavator what should you do before attempting to start the engine?
67
Once sitting in the operator's seat and before driving off, what should you do
for safety and comfort?
68
What should be referred to for the correct start up and shut down
procedure for the equipment?
69
Before moving off what should be done with grounded attachments?
LE_11
70
Before reversing an excavator, what action should you take?
71
Your excavator has run out of diesel, you refill the tank but the motor will not start.
What could be the possible cause?
72
What action would you take with damage and defects found on the machine?
UNIT 2 - SHIFT LOAD: Performance criteria 2.1.1 ( 2 questions) with a star.
73
Why are you not allowed to hoist persons with the bucket of an excavator?
74
Why are you not allowed to attached slings to the teeth of the bucket?
75
You are required to operate an excavator on soft and uneven ground. What effect
would this have on the load you could raise and carry with the excavator?
LE_11
76
How would you establish the load that can be safely lifted by an excavator?
77
What must be provided on an excavator to attach slings so that
the excavator may be used as a crane?
Load Charts ( 1 question)
78
From excavator load chart "Appendix A" what is the SWL to be hoisted over
the side at a radius of 3.0 metre and at a hook height of 3.0 metres?
79
From excavator load chart "Appendix A" what is the SWL to be hoisted over
the side at a radius of 6.1 metre and at a hook height of (minus) - 3.0 metres?
Weight of materials ( 2 questions)
80
List two ways that you would assess the weight of a load to be hoisted?
81
What is the approximate weight of cubic metre of concrete?
LE 11
82
Of topsoil or clay which is harder to excavate, push and spread?
Load factors (2 questions)
83
What effect does a choker hitch around a square load have on the SWL for the sling?
84
A four legged bridle sling arrangement is attached to a rigid load. How many
and which sling legs would be assumed to support the load?
85
What effect does a choker hitch around a round load have on the SWL
for a wire rope sling?
Rule of thumb formula ( 2 questions)
86
State the rule of thumb formula to calculate the SWL of wire rope.
87
State the rule of thumb formula to calculate the diameter of the wire
rope sling required to lift a specified load?
LE_11
88
State the rule of thumb formula to calculate the SWL of a grade 80
lifting chain?
89
State the formula for calculating the WLL of grade 30 to grade 75 lifting chain?
SWL of slings (select 4)
90
What is the SWL of a 12mm diameter wire rope sling?
91
What is the diameter of a single leg wire rope sling that is required to hoist a
2048 kg load
92
What is the SWL of flexible steel wire rope (FSWR)16mm in diameter
93
When a sling is reeved around a square load how is the WLL/SWL altered?
LE_11
94
What is the SWL of an 8mm diameter flexible steel wire rope
(FSWR)?
95
What is the SWL of a 12mm mild steel chain
96
What is the SWL of a 7.1mm diameter 80-grade chain?
97
What is the danger of slewing with a load when the turntable is not level?
98
It permissible for loads to be slewed over the cabin of the truck been loaded?
Explain your answer.
LE_11
99
List three precautions that must be considered when dumping material into a truck
using an excavator?
100 What action should be taken if you discover a large rock in the side of a trench
that you are digging?
101 How far must people be kept away from the excavator when it is digging?
102 Name two methods that should be used to prevent a cave in of a trench or
excavation?
103 What would be the indications that you are excavating quiet close to an underground
service?
104 While excavating you suspect there could be an underground service in the area of
the excavation, what action would you take?
LE 11
Trading under the RTO banner of-91544
105 How high must the bucket be kept above the ground when driving forward?
106 The load you are going to lift is likely to swing how would you prevent
this from happening?
107 Before reversing a machine what precaution should be taken?
108 When loading trucks using an excavator, where should the truck driver and other
observers be?
109 What is the minimum diameter size tag that can be used to control loads?
110 How are vehicles/machines stopped from coming too close to an excavation?
111 What are the dangers of driving your excavator close to the edge of an excavation?
LE_11
120 How far away from an excavation must material be dumped?
121 How would you dismount a machine that contacted live power lines, which could
not be released, or the power turned off?
IE 11
122 If the slings shifted on a load been hoisted, what action would you take?
123 If you accidentally damaged an underground electrical cable, whom would
you immediately contact to render the power supply safe?
124 The excavator you are operating overheats and needs to be checked for coolant
level. What precautions would you take prior to removing the radiator cap and
topping up the coolant?
125 If you are operating an excavator and it makes contact with powerlines what should
you do?
UNIT 3 - SHUT DOWN EQUIPMENT Performance criteria 3.1.1 (3 questions)
126 Name three areas where you would not park the excavator
LE_11
127 When leaving the excavator what should be done with all hydraulically
raised attachments?
128 What type of surface is the ideal type to park an excavator on?
129 What is the danger of parking near an excavation?
130 Describe the correct way to park an excavator.
Performance criteria 3.1.3 (1 question)
131 What post-operational checks of an excavator should the operator carry out?
SECURE SITE: Performance criteria 3.2.1 ( 2 questions)
132 What shall be provided when an excavator has to be parked on or protrudes on to an
access way?
133 For what reason should the key be removed from ignition of the machine?
LE 11
134 Before leaving the site what must be provided to restrict access to the site?
135 List eight things that must be done when parking the machine?
LE_11
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LE 11

Document 6467160

Transcription

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