AURLTQ101 WRITTEN ASSESSMENT ANAS IJAZ 20220490
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
Assessment 1 – Questioning – Written Assessment
Student Name
Anas ijaz Student ID Number
20220490
Unit Start Date
03/04/2023
Unit End Date
05/05/2023
Assessment Due Date
04/05/2023
Date Submitted
04/05/2023
This cover sheet is to be completed by the student and assessor and used as a record to determine student competency in this assessment task
The assessment process and tasks were fully explained.
Yes
/ No
I am aware of which evidence will be collected and how.
Yes
/ No
I am aware of my right to appeal an assessment decision.
Yes
/ No
I am aware that I can locate The RTO Complaints and Appeals Policy and Procedure on their website at (Insert Website Link)
Yes
/ No
I have discussed any additional educational support or reasonable adjustments I require in order to undertake this assessment with the Student Support Services Officer and Trainer / Assessor, (if applicable). e.g. Student Handbook and Access and Equity Policy (Insert Website Link)
Yes
/ No
I have access to all required resources?
Yes
/ No
Cheating & Plagiarism Declaration
Student Declaration: In accordance with The RTO Plagiarism Policy, I hereby acknowledge by signing this declaration that I have not cheated or plagiarised any work regarding the assessment tasks undertaken in this unit of competency except where the work has been correctly acknowledged.
NOTE: Student must sign this prior to submitting their assessments to the assessor
Signature
Anas ijaz
Date
:
04/05/2023
Assessment Results
Satisfactory
or
Not Yet Satisfactory
(Please circle the assessment result for this task)
Feedback to Student - Please provide general feedback on the Student’s performance
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
Student Declaration: - I verify that the work completed is my own and that I was adequately informed of the assessment process prior to commencing this assessment task.
Assessor Declaration: - I verify that I have adequately
explained and negotiated the assessment tasks with
the student prior to commencing assessment.
Student Name: anas ijaz
Assessor’s Name:
Student: anas ijaz
Date: 04/05/2023
Assessor Signature
Date
Student Guide for Written Knowledge Assessment
Overview of
Assessment
This is a written assessment task you will be assess on your knowledge of diagnosing
and repairing light vehicle final drive assemblies.
The topics that will be covered in the assessment are:
1.
Prepare to diagnose and repair light vehicle final drive assembly
2.
Diagnose final drive assembly
3.
Repair final drive assembly
4.
Complete work processes
This assessment will ensure that the elements, performance criteria, performance
evidence and knowledge evidence required, and conditions are adhered to demonstrate
competency in this unit assessment task.
•
Read the assessment carefully before commencing.
•
Your Assessor will use the assessment criteria in this document and will provide
feedback / comment.
•
You MUST
answer all the questions in the assessment tasks in your own words and own handwriting.
•
This is an “Open Book” assessment, and students can use the resources listed in the “Resources Required” section below.
Task/s to be assessed
To complete this written assessment, you will need to answer the 68
questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed
On average, the Assessment should take 4 – 6 hours to complete.
Location
This theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making
rules
To receive a ‘satisfactory’ outcome for this assessment students MUST
successfully answer all questions. If a student achieves less than 100%, they can reattempt the assessment
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
after further study has taken place. Students who cannot achieve a minimum of 100% you will not have satisfactorily completed this assessment
Your assessor will be looking for the following in this assessment task: -
•
Work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing light vehicle final drive assemblies, including procedures for working with hazardous oils
•
Environmental procedures for trapping, storing and disposing of oils released from final drive assemblies
•
Operating principles of light vehicle final drive assemblies and associated components, including:
o
Final drive gears, including:
-
Gear types
-
Gear ratios and torque reduction and multiplication
o
Differential function
•
Application, purpose and operation of the following components of light vehicle final drive assemblies and components, including:
o
Removable carrier housing (banjo) type final drives
o
Integral carrier housing type final drives
o
Transaxle final drives
o
Differentials, including limited slip differentials
o
Axle shafts for rigid axles, including:
-
Semi floating live axles
-
Three quarter floating live axles
-
Fully floating live axles
•
Diagnostic testing procedures for light vehicle final drive assemblies, including:
o
Road testing procedures, including:
-
Final drive assembly noise diagnostic
-
Wheel bearing noise diagnostic
o
Pre-dismantling inspection procedures
•
Repair procedures for light vehicle final drive assemblies, including procedures for:
o
Dismantling final drive assemblies
o
Inspecting final drive assemblies
o
Reassembling and adjusting pinion depth, pinion bearing preload, crown wheel and pinion backlash, side
o
Bearing preload and crown wheel and pinion tooth contact
o
Repairing wheel bearings of rear wheel drive light vehicles
•
Post-repair testing procedures for light vehicle final drive assemblies.
Assessment
conditions
Assessors MUST
satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately
reflects performance in a real workplace setting.
Assessment MUST
include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals MUST
provide evidence that links them to the light vehicle final drive assemblies that they have worked on,
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
Page Sequence:
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Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
Page Sequence:
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
e.g. repair orders.
Assessors MUST
verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources MUST
be made available:
•
Automotive repair workplace or simulated workplace
•
Workplace instructions
•
Manufacturer light vehicle final drive assembly specifications
•
Two different light vehicles:
o
One with faults in its removable carrier housing (banjo) type final drive assembly
o
One with faults in its integral carrier housing type final drive assembly
•
Diagnostic equipment for light vehicle final drive assemblies
•
Tools, equipment and materials appropriate for light vehicle final drive assemblies.
Resources required
Learning Resources available to students include:
•
Automotive Technology (A System Approach) 6
th
Edition – Chapters 5, 6, 7, 38, 39,
40 & 45
•
Websites
•
Trainer Handouts
Results/Re-
assessment
•
The Assessor will grade the assessment and record the result on the front page of this document (S) – Satisfactory if all observable behaviours are correct and (NS) not satisfactory if any areas are left incorrect
•
Feedback will be provided on either result
•
Where a student receives a ‘NS – Not Satisfactory’ result, the assessor will discuss the area of the non-compliant observable behaviour and an opportunity given for re- assessment. This may be through direct observation or a different method of assessment e.g. verbal/oral questioning, problem solving exercise.
•
If the outcome is again not satisfactory the student result will be deemed (NYC) not
yet competent. Additional feedback will be given, and a time agreed upon for further
assessment after additional training and skills practice has taken place, this information will be recorded, dated and signed in the re-assessment area on the last page of this document
•
Where all the assessment tasks have been graded (S) Satisfactory, the student will
be deemed C – Competent for the practical component and the result recorded
and signed in the area indicated on the last page of this document
Reasonable
Adjustment
If the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.
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Avoid communication during the dispensing process and dispense lubricants using the appropriate transfer equipment
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Document No:
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Date:
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
Assessment 1 – Questioning
Written Assessment
1.
Identify five (5) important items of personal safety when working on final drive assemblies in an automotive workplace?
1
Hearing protection
2
Skin protection
3
Clothing protection
4
Footwear
5
Safety Shields
2.
What are the precautions that you should be aware of when handling final drive oil? https://go.lupinsys.com/caltex/harms/public/.../Geartex_LSD_SAE_140-
SDS.pdf
3.
How should waste final drive assembly oils be stored and disposed?
, Collect oil waste oils insecure clearly labelled drums over tanks that are stored in bonded and undercover area
Multiple Choice question. Selected the correct answer.
4.
When changing the final drive oil, what should you use to catch the waste oil?
A.
Drain
pan
.
B.
Mop bucket.
C.
Storm water drain.
D.
Funnel.
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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The SDS is a document that contains the detailed information of hazards that comes with a chemical
5.
When handling, trapping, storing and disposing of new or waste final drive oils, which document should you use to find this information?
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
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Date:
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True or False question
6.
The differential pinion gears do not rotate on the pinion shaft when both driving wheels are turning at the same speed.
☒
True
or
☐
False
True or False question
7.
In a hypoid gearset, the drive pinion meshes with the ring gear at gear centreline.
☐
True
or
☒
False
True or False question
8.
In a differential gearset, the side gears deliver torque to the pinion gears.
☐
True
or
☒
False
9.
Name the seven [7] components of a typical final drive unit below.
1.
Differential pinion gears
2.
Ring gear
3.
Drive pinion
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Hybrid gears are type of spiral Bevel gear that are used to transmit rotational power between two shafts at right angles
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
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4.
Side gear
5.
Axel
6.
Shaft
7.
Differential case
10.
Why are hypoid gears and why are hypoid gears used?
Hunting gear set
Non- hunting gear set
Partial non hunting gears
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Date:
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© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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Multiple Choice question. Selected the correct answer.
11. A -type limited slip differential uses a set of helical gears to transfer torque from the wheel that is slipping to the wheel with traction.
A.
Spicer.
B.
Torsen
.
C.
Ravigneaux.
D.
DeDion.
12.
Ring and pinion gearsets are normally classified as?
Multiple Choice question. Selected the correct answer.
13.
When one drive pinion gear tooth contacts every ring gear tooth after several revolutions, this is called a?
A.
Hunting
gearset
.
B.
Non-hunting gearset.
C.
Partial non-hunting gearset.
D.
None of these answers are correct.
True or False question
14.
A partial non-hunting gearset is one in which one pinion tooth contacts only six ring gear teeth.
☒
True
or
☐
False
Fill in the Gaps
15.
Complete the following statement about gear ratios using the following words.
Words: Dividing, Driven, Gear, Number, Larger, Multiplication, Ratios,
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Date:
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Gear Ratio
express the mathematical relationship of one gear to another. _ gear
ratios can vary by changing the diameter and _ numbers
of teeth of the gears in mesh. A gear ratio also expresses the amount of torque multiplication
between two gears. The ratio is obtained by _ dividing
the diameter or number of teeth of the driven
gear by the diameter or teeth of the drive gear. If the smaller driving gear had eleven teeth and the Larger
gear had forty-four teeth, the ratio is 4:1.
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
12
th
Aug 2020
Document No:
Trinity Institute (Australia) – AURLTQ101
Version No:
3.0
Last Modified
Date:
14/5/22
© Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F
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Multiple Choice question. Selected the correct answer.
16.
Which of the following gear ratios generates the highest torque or power output?
A. 0.85:1.
B. 2.67:1.
C. 5.23:1.
D. 11.12:1.
Multiple Choice question. Selected the correct answer.
17.
When a large gear drives a smaller gear, the output speed .
A.
Decreases and torque decreases.
B.
Decreases and torque increases.
C.
Increases and torque increases.
D.
Increases
and
torque
decreases.
Multiple Choice question. Selected the correct answer.
18.
When a small gear drives a larger gear, the output speed .
A.
Decreases and torque decreases.
B.
Decreases
and
torque
increases
.
C.
Increases and torque increases.
D.
Increases and torque decreases.
True or False question
19.
Axles with a numerically high gear ratio such as 4.11 allow the engine to run slower at any given speed, resulting in better fuel conservation.
☐
True
or
☒
False
True or False question
20.
Axles with numerically low gear ratio such as 2.83 allow for fast acceleration and good pulling power.
Final drive is the last stage of power transfer from propeller shaft to rear axle in and automotive vehicle
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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☒
True
or
☐
False
21.
Define final drive.
The differential is a system of gears that allows different drive wheels On the same axel to rotate at different speeds, Such as when the ca
The differential gears allow one wheel to travel at a different speed than the other, while both remained powered
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Date:
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22.
Describe the function of a differential.
Multiple Choice question. Selected the correct answer.
23.
Which of the following is NOT
a function of the final drive in a rear axle?
A.
Changes the direction of power flow 90 degrees.
B.
Transfers
braking
torque
to
the
front
wheels.
C.
Allows the drive wheels to rotate at different speeds when negotiating a turn.
D.
Reduces speed/multiplies torque.
24.
Describe the action of differential side gears when the vehicle is cornering.
Multiple Choice question. Selected the correct answer.
25.
When the vehicle is turning left, .
A.
The left-side gear and axle shaft are turning slower than the housing [carrier].
B.
The right-side gear and axle shaft are turning faster than the housing [carrier].
C.
The differential pinion gears rotate on the pinion shaft.
D.
All
answers
are
correct.
Multiple Choice question. Selected the correct answer.
26.
Which of the following is NOT a function of the final drive in a rear axle?
A.
Changes the direction of power flow 90 degrees.
B.
Transfers
braking
torque
to
the
front
wheels.
C.
Allows the drive wheels to rotate at different speeds when negotiating a turn.
D.
Reduces speed/multiplies torque.
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
Aug 2020
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True or False question
27.
A removable-carrier axle housing is sometimes called a banjo type differential.
☒
True
or
☐
False
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
Aug 2020
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Date:
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Fill in the Gaps
28.
Complete the following statement about removable carrier housing (banjo) using the following words. Words: Assembly, Axle, Banjo, Carrier, Contaminants, Heavy-duty, Housing,
The removable _Banjo
axle housing is open on the front side. Because it resembles a carrier
it is often called
a banjo housing
The backside of the housing is closed to seal out dirt and Contaminants
and keep in the lubricant. The gears are mounted in a carrier Assembly
that can be removed as a unit from the axle
housing. Removable carrier axle housings are most commonly used today on trucks and other Heavy
duty
vehicles.
Fill in the Gaps
29.
Complete the following statement about integral carrier housing using the following words. Words: Carrier, Final, Gear, Housing, Removable, Tubes
The integral housing
is most often found on cars and light trucks. A cast-iron _ carrier
forms the centre of the axle housing. Steel axle _ tubes
are pressed into both sides of the carrier to form the housing. The housing and carrier have a removable
rear cover that allows access to the fina
l drive assembly.
Because the carrier is not removable, the _ gear
assemblies must be removed and serviced separately.
True or False question
30.
Transaxle contain the transmission and the final drive gear assembly.
☒
True
or
☐
False
Fill in the Gaps
31.
Complete the following statement about transaxle assemblies using the following words.
Words: Axles, Differential, Gear, Housing, Propelled, Ring, Side, Transaxle, Transfers, Transmission, Vehicles, Weight
Front-wheel drive (FWD) vehicles are _ propelled
by the front wheels. For this reason, they must use a drive design different from that of an RWD vehicle. The transaxe
lis the special power transfer unit commonly used on FWD vehicles. A transaxle combines the transmission gearing, Differential
and drive axle connections into a single case housing
located in front of the vehicle. This design offers many advantages. One major advantage is the good traction on slippery roads due to the _ weight
of the drivetrain components
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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being
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Student Written Knowledge Assessment – AURLTQ101
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th
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directly over the driving _
axels
of the vehicle. It is also more compact and lighter than the _ Transmission
of
an RWD vehicle. Transverse engine and transaxle configurations also allow for lower hood lines, thereby improving the _ Vehicle
aerodynamic.
The final drive ring
gear is driven by the transaxle’s output shaft. The ring gear then transfer
the power to the differential case. The case holds the ring gear
with its mating pinion gear. The differential _ Side
gears are connected to the drive axles.
32.
Name the nine [9] components of typical front-wheel-drive powertrain below.
1.
Driving axle
2.
Main shaft
3.
Input cluster shaft
4.
Transaxle
5.
Engine
6.
Driving axle
7.
Pinion gear
8.
Differential
9.
Ring gear
True or False question
33.
Limited slip differential clutch packs are designed to slip slightly when the vehicle is turning.
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
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th
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Date:
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☒
True
or
☐
False
True or False question
34.
Pressure is kept on the limited slip differential clutch packs by either an S-shaped spring or coil springs.
☒
True
or
☐
False
35.
Name the eight [8] components of the limited slip differential case below.
1
Outer side gear face
2
Differential case inner wall
3
Clutch pack engaged
4
Differential case
5
Clutch pack engaged to axle shaft
6
Differential
7
Inner wall
8
Outer side gear face
1.
36.
Name the three (3) different types of axle shafts below.
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
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A.
Semi floating
B.
Three quarter floating
C.
Fully floating
Multiple Choice question. Selected the correct answer.
37.
Which type of drive axle supports the weight of the vehicle?
A.
Semi-floating
.
B.
Three-quarter floating.
C.
Full-floating
D.
Both “semi-floating” and “three-quarter floating”.
Multiple Choice question. Selected the correct answer.
38.
Full floating axle shafts are found on .
A.
Front axles of an FWD car.
B.
Rear axle of an RWD car.
C.
Front axle of a 4WD SUV.
D.
Rear
axle
of
a
heavy-duty
truck.
True or False question
39.
The axles in a full-floating axle housing drive the wheel assemblies but do not support the weight of the vehicle.
☐
True
or
☒
False
True or False question
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
Created Date:
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40.
A three-quarter floating axle has one wheel bearing per wheel on the outside of the axle housing.
☒
True
or
☐
False
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Multiple Choice question. Selected the correct answer.
41.
C-shaped washers [C-locks] are used to retain the axle shaft used with bearings.
A.
Sealed ball.
B.
Tapered roller.
C.
Straight
roller.
D.
All answers are correct.
Multiple Choice question. Selected the correct answer.
42.
Which type of bearing is NOT
used on semi-floating axles?
A.
Needle bearing.
B.
Ball bearing.
C.
Straight
roller
bearing.
D.
Tapered roller bearing.
43.
Describe the four (4) distinct modes the vehicle should be operated in during a road test when diagnosing final drive problems.
1
Drive mode
2
Cruise mode
3
Cost mode
4
Float mode
44.
What two (2) conditions are usually the first symptoms to be noticed when a differential or drive axle shaft problem occurs?
1
Clicking noise
2
Vibration in the wheel
True or False question
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Whimpering noise is brought about by harmed differential pinion gears ,laugh commotion is brought about by worn apparatuses.. Beside
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Trinity Institute (Australia) – AURLTQ101
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45.
A bad axle or wheel bearing will not cause a tyre wear problem.
☐
True
or
☒
False
46.
Consider the various noises that could originate from the rear-axle assembly, and the faults associated with such noises.
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With the career assembly installed.,Attach your dial indicator with the plunger at 90 degree angle from the face of ring gear teeth .gently AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
Created Date:
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Fill in the Gaps
47.
Complete the following statement about crown wheel and pinion diagnosis using the following words. Words: Accelerating, Float, Gear, Noise, Tooth, Vehicle
Crown wheel and pinion noise originates from poor Tooth
contact and may be noticed on drive, overdrive or _
float
It can be more pronounced on one of these than on the others.
Drive noise is most pronounced when _
accelerating
,
as the gear teeth are under load. The bearings are also under load so that any lack of preload will allow the Gear
teeth to change their area of contact.
Noise on overdrive occurs as the _
vehicle
decelerates from medium speeds, while float noise
occurs
under light cruising conditions.
True or False question
48.
Rough pinion bearings will produce a continuous whine, which will persist when coasting in neutral, right down to low speed.
☒
True
or
☐
False
True or False question
49.
Faulty rear-axle bearings produce a growling noise, which is hard to distinguish from a differential noise.
☒
True
or
☐
False
50.
Describe how to measure ring and pinion gearset backlash.
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Check the filter plug
Check-gasket
Check for drain plug
Check for electronic control coupling
Check for gear oil
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Trinity Institute (Australia) – AURLTQ101
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51.
Before repairing a banjo final drive assembly. What five (5) pre-dismantling checks that should be carried out?
Fill in the Gaps
52.
Complete the following statement about dismantling a unitised final drive assembly using the following words. Words: Bearing, Bolts, Carrier, Case, Crown, Differential, Pinion, Preloaded, Shims, Spread, Wheel
The differential side bearings are _ Preloaded
and this holds the differential case firmly in the housing. When dismantling, the bearing mountings are usually spread
slightly to relieve the preload so that the differential case
with the crown wheel can be easily removed. The sequence is:
1
Mark the left-hand and right-hand bearing
caps to identify their positions for reassembly.
2
Remove the bearing cap Bolts
and remove the bearing caps.
3
Fit a spreader tool to the differentia
l housing.
4
Adjust the nut on the spreading tool to spread the housing so that the crown
wheel and differential case can be removed from the _
carrier
Remove the crown _ whee
l and differential case and release the spreader.
5
Identify the right and left bearing cups and _ Shims
or spacers so that they can be correctly located during reassembly.
6
Proceed to remove the pinion
from the housing and continue with any further dismantling required.
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
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th
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Trinity Institute (Australia) – AURLTQ101
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53.
After dismantling the final drive assembly, you should inspect it for worn or damaged components. Referring to the link or ask the trainer for handout, complete the following table. http://pdf.textfiles.com/manuals/AUTOMOBILE/NISSAN/murano/2007/2007_Murano/rfd.pdf
Component
Condition and Measures
Hypoid Gear
If the gear to do not mesh or line up correctly determine the cause and
adjust or replace as necessary. if the gear or worn cracked damaged pitted or chipped noticeably repair replace with new drive gear and drive pinion as asset
Bearings
If any chipped pitted worn rusted or scratched mark or manual noise from the bearing is observed replace as bearing assembly
Side Gear and Pinion Mate
Gear
If any cracks or damage on the surface of the tooth is found replace if anyone or chip mark on the contact sides of the thrust washer is foundry place
Side Gear Thrust Washer and Pinion Mate Thrust Washer
If it is chipped damaged over usually worn replace
Oil Seals
Whenever disassemble replace . If wear deterioration of adherence replace is detected on the lips replace them
Differential Case
, If any wear or crack on the contact sides of the differential case is found replace
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AURLTQ101 Diagnose and repair light vehicle final drive
assemblies
Companion Flange
Any chipped mark( about 0.1 mm , 0.004 in) or other damage on contact side , replace
True or False question
54.
Adjusting Backlash sets the depth of the mesh between the ring and pinion gear teeth.
☐
True
or
☒
False
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
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Pinion bearing preload is tension placed on the opinion gears tapered bearings. Collapsible spacer is used to obtain the specified amount Improper pinion bearing preload can cause pinion seal to look.
Multiple Choice question. Selected the correct answer.
55.
Pinion gear depth is adjusted by .
A.
Threaded adjusters behind the housing bearing outer cups.
B.
Shims placed between the differential housing [carrier] and housing bearings.
C.
Threaded
adjusters
between
the
companion
flange
and
front
pinion
bearing.
D.
Shims placed between the pinion bearing and pinion gear.
True or False question
56.
Whenever the ring and pinion gears or the pinion or differential case bearings are replaced, pinion gear depth, pinion bearing preload, and the ring and pinion gear tooth patterns and backlash must be checked and
adjusted.
☒
True
or
☐
False
57.
Explain how pinion bearing preload is set?
58.
What can happen if the pinion bearing preload was set incorrectly?
True or False question
59.
It is recommended that a new pinion seal be installed whenever the pinion shaft is removed from the differential.
☒
True
or
☐
False
True or False question
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
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60.
A typical procedure for measuring and adjusting backlash and preload involves rocking the ring gear and
measuring its movement with a dial indicator.
☒
True
or
☐
False
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Low flank, contact decreases pinion Shim
Toe contact increases black lash
Hi face contact increases pinion Shim
Heel contact decreases backlash
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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61.
The
pattern
of
gear
teeth
determines
how
quietly
two
meshed
gears
run. There are terms commonly used
to describe the possible patterns on a ring gear. Using the images below, name patterns on a ring gear and
the necessary corrections.
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AURLTQ101 Diagnose and repair light vehicle final drive assemblies
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Student Written Knowledge Assessment – AURLTQ101
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th
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Fill in the Gaps
62.
Complete the following statement about measuring and adjusting backlash and side-bearing preload on a unitised final drive assembly using the following words.
Words: Backlash, Bearing, Combined, Cup, Dial, Gearset, Housing, Indicator, Position, Record, Shims, Spacers, Thickness, Tighten
1
Measure the record
of the original side bearing preload shims.
2
Install the differential case into the _ Housing
3
Install service spacers
that are the same thickness as the original preload shims between each bearing cup
and the housing.
4
Install the bearing caps and finger Tighten
the bolts.
5
Mount a dial _ Indicator
to the housing so that the button of the indicator touches the face of the ring gear. Using two screwdrivers, pry between the _ shims
and the housing. Pry to one side and set the dial indicator to zero, then pry to the opposite side and Set
the reading.
6
Select two shims with a Combined
thickness to that of the original shims plus the indicator reading, then install them.
7
Using the proper tool, drive the shims into Position
until they are fully seated.
8
Install and tighten the _ Bearing
caps to specifications
9
Check the backlash and preload of the _ gear
set
Check the backlash by holding the input pinion, rocking the ring gear, and noting the movement on the Dia
l indicator. Adjust the shim pack to allow for the specified backlash. Recheck the _ backlash
at four points equally spaced around the ring gear.
True or False question
63.
An oxyacetylene torch can be used to remove the axle bearing retaining ring.
☒
True
or
☐
False
True or False question
64.
A steel cold chisel and hammer can be used to remove the axle bearing retaining ring.
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☐
True
or
☒
False
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The oil check
The tyre pressure check
The power steering fluid check
Wheel alignment
The air filter
A good job card, filled out correctly, will ensure that when you need to communicate with the customer at any stage during the re
AURLTQ101 Diagnose and repair light vehicle final drive assemblies
Document Name:
Student Written Knowledge Assessment – AURLTQ101
Created Date:
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th
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Document No:
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Multiple Choice question. Selected the correct answer.
65.
Whenever a tapered roller bearing is replaced, its must be replaced with it.
A.
Castellated nut.
B.
Thrust washer.
C.
Spindle.
D.
Race
.
66.
Consider the various post repair checks that you would make during a road test on the final drive assembly?
Multiple Choice question. Selected the correct answer.
67.
Which source of information will give you the most detail about diagnosing and repairing final drive assemblies on the vehicle you are working on?
A.
Workshop
manual.
B.
Owner’s manual.
C.
Google.
D.
Textbooks.
68.
Why is it very important that the Job Card is completed correctly?
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AURLTQ101 Diagnose and repair light vehicle final drive
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- AMNT 280 Assignments 1-4 Media Presentation Categories Of Reciprocating Engines Develop a Media Presentation develop a power point media presentation Presentation will require researching a module specific topic For this activity you will research the four categories of reciprocating engines In your presentation address the following: 1 Research the four different types of reciprocating engines2 Provide an overview of the design, construction, and firing order of each engine 3 Provide research concerning which air frame used the engine Presentation Guidelines Note:This information applies to all Media Presentation activities and will not be repeated Present your research material in the format of a written document (Introduction, body, and conclusion) Presentation requirements consist of 5-7 slides with a balance of both bullet text information and images; does not include the title or reference slide APA formatting and structural guidelines apply Additional information…arrow_forwardI need GF,CF,CD asap pleasearrow_forwardPlease assist with answering the following question?arrow_forward
- Select atleast two testing devices from among the categories (you may go beyond two). Discuss its application and methods of use. a. testing for speed (Tachometer), b. Testing of Air Consumption (Air-box method/viscous-flow meter), c. testing of exhaust smoke (Bosch/Hartridge/PHS), d. testing of exhaust emission (flame ionization detector/spectroscopic analyzers/gas chromatography) e. testing of torque (absorption dynamometer/transmission dynamometer).arrow_forwardpeople in a collision. * Decide whether each of the following statements is true (T) or false (F). Place your answer in the blank space provided. a. Restraining features operate continuously while you are driving. b. Operational features hold vehicle occupants in place. C. Brakes are an example of a structural feature. d. Crumple zones are examples of operational features. e. An air bag is an example of a restraining feature. 5. Crumple zones increase the occupants and the interior of the vehicle. of the collision between thearrow_forwardThe design process Identify the problem Do research Develop possible solutions Choose one solution Design and construct a prototype. Test the prototype Communicate results Evaluate and redesign. 8. How would an engineer use the design process to build a car that uses less gas?arrow_forward
- University of Babylon Collage of Engineering\Al-Musayab Department of Automobile Engineering Under Grad/Third stage Notes: 1-Attempt Four Questions. 2- Q4 Must be Answered 3-Assume any missing data. 4 تسلم الأسئلة بعد الامتحان مع الدفتر Subject: Mechanical Element Design I Date: 2022\01\25 2022-2023 Time: Three Hours Course 1 Attempt 1 Q1/ Design a thin cylindrical pressure tank (pressure vessel) with hemispherical ends to the automotive industry, shown in figure I below. Design for an infinite life by finding the appropriate thickness of the vessel to carry a sinusoidal pressure varied from {(-0.1) to (6) Mpa}. The vessel is made from Stainless Steel Alloy-Type 316 sheet annealed. The operating temperature is 80 C° and the dimeter of the cylinder is 36 cm. use a safety factor of 1.8. Fig. 1 (15 Marks) Q2/ Answer the following: 1- Derive the design equation for the direct evaluation of the diameter of a shaft to a desired fatigue safety factor, if the shaft subjected to both fluctuated…arrow_forwardI need soolutions for CD,CF,GFarrow_forwardPlease give me the answers for this i been looking at this for a hour and my head hurtsarrow_forward
- An accident investigation report must include all of the following except: The date of the accident Names of those witnessing the accident A description of the incident Factors that contributed to the incidentarrow_forwardto see what will happen to 3. Safety engineers use people in a collision. 4. Decide whether each of the following statements is true (T) or false (F). Place your answer in the blank space provided. a. Restraining features operate continuously while you are driving. b. Operational features hold vehicle occupants in place. C. Brakes are an example of a structural feature. d. Crumple zones are examples of operational features. e. An air bag is an example of a restraining feature. of the collision between the 5. Crumple zones increase the occupants and the interior of the vehicle.arrow_forward00 T R %24 Bb R V qa du/webapps/assessment/take/launch.jsp?course_assessment_id%=_254968_1&course_id%3D 3565256_1&content id= 52826 * Question Completion Status: Attach File Browse Local Files Browse Content Collection QUESTION 2 A company needs to choose one supplier for a particular type of silicon wafer used'in the production of semiconductors. The company has three options. Supplier A sells the silicon wafers for $2.50 per wafer, independently of the number of wafers ordered. Supplier B sells the wafers for $2.40 each but does not consider an order for less than 2,000 wafers. Supplier C sells the wafers for $2.30 each but does not accept an order for less than 3,000 wafers. Assume an order setup cost of $100 and an annual requirement of 20,000 wafers. Assume a 20% annual interest rate for holding cost calculations. a. Which supplier should be chosen to minimize the total annual cost for the wafers, and what is the optimal order quantity? b. If the replenishment lead time for wafers…arrow_forward
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