Lab 6 AERM 1345-1
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Tarrant County College, Fort Worth *
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Course
1314
Subject
Mechanical Engineering
Date
Dec 6, 2023
Type
docx
Pages
7
Uploaded by AdmiralElement7342
Laboratory/Learning Outcomes
AERM 1345 Lab Project 6
Repair and inspect aircraft electrical system components; crimp and splice
wiring to manufactures specifications.
a.
Student will select the proper solderless (crimp and slice) termination,
tools and then properly terminate a wire
b.
Student will properly terminate and inspect a wire using solder
c.
Inspect solderless (crimp and splice) terminations and list defects
d.
Student will repair a broken/damaged wire by selecting the correct
tools and solderless (crimp and splice) termination
e.
Student will Use acceptable data select material, fabricate, install, and
test a circuit ground
ACS Element - S - Skills The student demonstrates the ability to:
AM.II.K.S2 Perform wire terminating and splicing.
AM.II.K.S18 Perform a continuity test to verify the condition of a
conductor.
AM.II.K.S19 Perform a test on a conductor for a short to ground.
AM.II.K.S20 Perform a test on a conductor for a short to other
conductors.
Answer the Following Questions:
1.
What is an electrical connector?
Answer: It’s a device that is used to terminate or
connect the conductors of individual wires/cables
to other wires/cables or components
2.
What are the two parts to every connector assembly?
Answer: Plugs and Receptacles
3.
Plugs typically use what type of contact?
Answer: Pin Contact and socket contacts
4.
Receptacles typically use what type of contact?
Answer:
A device for mating connectors by engaging
threads in a coupling ring with threads on a
receptacle shell.
2.5.1 Course Outline: AERM 1345
September 21, 2022
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7
5.
Define a “high reliability connector”.
Answer: Something that you can trust more than the other connector uses.
6.
What are the two forms of connectors?
Answer: Soldered and Solderless
7.
What are the benefits of using connectors in aircraft wiring?
Answer: Connectors facilitate maintenance when frequent disconnection is
required.
8.
What five parts make up a connector?
Answer:
Housing, Insulator, Contacts, Strain Relief, Coupling Mechanism
9.
What part of the connector assembly (receptacle or plug) is used as the ground
side of the circuit?
Answer: Pin contact (Receptacle)
10.Of the connector, (receptacle or plug) which is the power side of the circuit?
Answer: Plug
11.Which contact carries power (+)?
Answer: Sockets
12.Which contact is ground (-)?
Answer: Pin Contact
13.How many rows of contacts does a low density rectangular connector have?
Answer: They are 1
14.How many rows of contacts does a standard density rectangular connector
have?
Answer: 2
15.How many rows of contacts does a high density rectangular connector have?
Answer: 3
2.5.1 Course Outline: AERM 1345
September 21, 2022
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16.What are the three different connector coupling mechanisms that are used to
mate receptacles and plugs?
Answer: 1: Circular connector with bayonet coupling.
2: Circular connector with threaded coupling.
Front release contacts.
3: Circular connector, threaded coupling.
17.What are the two primary requirements of a properly formed contact/conductor
crimp?
Answer: Mechanical Strength and Electrical Grip
18.What is the strength requirement of a properly crimped contact?
Answer: 100% tensile strength of wire
19.What is the purpose of the inspection hole on a connector contact?
Answer:
Ensure the cable is properly in the contact
20.Using Daniel Manufactures website, determining the following information for the
following contact color bands?
Contact Type
Standard Density Socket
Bin
Orange Blue Grey
Crimper
AFA _
CRIMP TOOL M22520/1-01
Positioner
___
86-30-1 positioner
_____________
Insertion Tool
___
DAK145 Insertion Too
l___________
Removal Tool
___
DRK 145___Removal Tool #20
______
21.Properly number all of the contacts on the connector below.
Answer: 1)__
6
___ 2)__
7
___3)___
8
__4)__
5
___5)__
1
___6)__
9
___7)__
16
___8)__
4
___9)__
2
___
10)__
10
___11)__
15
___12)__
3
___13)__
11
___14)__
14
___15)_
13
___ 16)__
12
___
2.5.1 Course Outline: AERM 1345
September 21, 2022
Page
3
of
7
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Lab Performance
Prepare the wiring harness to attach connectors.
Refer to the Daniels DMC tool
catalogs on Canvas, .
1.
Please acquire connectors and put a tape label with your name on it on the
plastic container. Make the wires approximately 18 in. long from 20 AWG wire
from the tool room.
2.
The connectors will be identified as SUB-D 1, SUB-D 2, RP-3 and RP-4.
3.
SUB-D 1 and SUB-D 2 are M24308/2. Refer to DMC Tools PDF Catalogs
provided on Canvas, Connector Tooling Guide in the LRC and find the data sheet
and tooling requirements for these connectors. Attach to this lab.
4.
Provide the following information terminate wires using wiring diagram below
5.
Test harness using tester box.
6.
Grading will be based on proper hardware, crimped connections, splicing and
correct wire numbering.
7.
Round connectors, o
ne
should be a
male, P/N MS3126F10-6P, the other should
be female, P/N MS3126F-6S.
Ensure that the male connector has a red band
painted on its collar, and the female connector has a blue band painted on its
collar.
8.
Install wires 008-20 to C on CP-4, 007-20 to B on CP-3, 009-20 to E on CP-4 and
006-20 to F on CP-3. After installation, and test, demonstrate your ability to
remove the contacts from the connector. After instructor grades your project, de-
pin the crimp connectors and cut the wires connecting SUB-D 1 to SUB-D 2 and
return to the tool room.
9.
Test wiring harness using tester box.
2.5.1 Course Outline: AERM 1345
September 21, 2022
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2.5.1 Course Outline: AERM 1345
September 21, 2022
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Connector Type
____Round___________________________
Connector Density
__
Standard Density
_____________________
Connector Part Number
__
MS3126F10-6S/ MS3126F10-5P
_________
Contact BIN
__
Orange, Blue and Black
________________
Contact Size
__
22
___________________________________
Contact Removal (Front/Rear)
DRK95-22MB Removal Tweezer - M81969/8-02 REV B
Required Tooling
o
Crimper
AFM8 Adjustable Miniature 8 Indent Lower Range Crimp Tool
,
MIL-DTL-
22520/2* and AS22520/2*
o
Contact
Positioner
K42 Positioner MIL-DTL-22520/2* and AS22520/2*
o
Insertion Tool
DAK95-22MB Insertion Tweezer - M81969/8-01 REV B
o
Contact Removal Tool
DRK95-22MB Removal Tweezer - M81969/8-02 REV B
2.5.1 Course Outline: AERM 1345
September 21, 2022
Page
6
of
7
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Remove all contacts from connectors. Reassemble connectors for return to tool room.
2.5.1 Course Outline: AERM 1345
September 21, 2022
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