ABÊ-SBNI£Â/AIL8JEI SSÉNAL
(FSCM) 098â3
COMPONENT MAJNÏENANCE MANUAL
WITH
ILLUSTRATED PARTS LIST
TEMPERATURE SENSOR
Part Number
764AOOOO-02
764AOOOO-03
7648000001
Issued by
Product Support Department
LIEBHERR-AERO-TECHNIK GMBH
Postfach1363
D-8998 Lindonberg
Fédéral Republic of Germany
Tel. (08381/46-209) Tx/Ttx 83818123
Initial
Issue: Mar 15/87
inmai issue:
Révision 2
r\^ ç0 00
^ • "Ofe"^fc
© Copyright Llebherr-Aero-Technik Gmbh 1992
This document 1s given in confidence and may not be reproducted,
stored In a retrieval System, or transmltted. 1n any form or by any
means. electronic. mecham'cal. photocopying, recording. or
otherwise. without thé prior written permission of
Liebherr-Aero-Technik GmbH.
Unless Liebherr-Aero-Technik GmbH (Thé company) has accepted a
contractual obligation in respect of thé information and data
contained herein such information and data is provided without
responsibility and thé company disclaim ail liability arising from
its use.
AKÊ-SIENCA/ÂLLIEI
SMAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
HIGHLIGHTS
REVISION No. 2 - Oct 30/92
Pages whlch hâve been added. revised or deleted are outtined below together
with thé highlights of thé révision.
PAGES
MOVEMENT
DESCRIPTION OF CHANGE
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Révision 2 added.
Copyright on back page added.
Format changed.
Addition of Rev. 2 on ré-issue.
RECORD OF TEMPORARY REVISIONS
Format of RTR changed.
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LIST OF EFFECTIVE PAGES
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SERVICE BULLETIN LIST
R
TITLE PAGE
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RECORD OF REVISIONS
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TABLE OF CONTENTS
Pages 1 and 2
R/N
INTRODUCTION
R/N
Pages 1 and 2
Page 1
Page 3
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Page 6
Page 7
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Révision 2 incorporated.
Format of LEP changed.
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Format of TOC changed.
Text added.
New INTRO text.
Abbreviations and symbols added.
New présentation of Figure 1.
Editorial amendment.
Text moved.
Editorial amendment.
Para. 4. added.
Text relocated.
Text relocated.
Figure 1 modified.
HIGHLIGHTS
21-52-22
Page 1 of 1
Oct 30/92
AIG-SIEMCA/ALDJB SMAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
HIGHLIGHTS
REVISION No. 2 - Oct 30/92
Pages which hâve been added. revlsed or deleted are outlined below together
with thé highlights of thé revision.
PAGES
MOVEMENT
DESCRIPTION OF CHANGE
Page 1/2
R
Révision 2 added.
Copyright on back page added.
Format changea.
Addition of Rev. 2 on ré-issue.
RECORD OF TEMPORARY REVISIONS
Format of RTR changed,
Page 1/2
R
LIST OF EFFECTIVE PAGES
Page 1/2
R
SERVICE BULLETIN LIST
R
TITLE PAGE
R
RECORD OF REVISIONS
Page 1/2
TABLE OF CONTENTS
Pages 1 and 2
R/N
INTRODUCTION
R/N
Pages 1 and 2
Page 1
Page 3
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Revision 2 1ncorporated.
Format of LEP changed.
Format of SBL changed.
Format of TOC changed.
Text added.
New INTRO text.
Abbreviations and symbols added.
New présentation of Figure 1.
Editorial amendment.
Text moved.
Editorial amendment.
Para. 4. added.
Text relocated.
Text relocated.
Figure 1 modified.
HIGHLIGHTS
21-52-22
Page 1 of 1
Oct 30/92
AIÊ-SiEMCA/ÂLLIED
SEWL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
RECORD 0F REVISIONS
REVISION
NUMBER
INSERTED
BY
DATE
REVISION
NUMBER
INSERTED
BY
Revision 2 incorporated on ré-issue
^ ^-idU
21-52-22
ABÊ-SEMCÂ/AILOEIS
SIGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
RECORD 0F TEMPORARY REVISIONS
CANCELLED
TEMPORARY
INSERTED
BY
DATE
REVISION
BY
REVISION
NUMBER
TEMPORARY
CANCELLED
INSERTEO
REVISION
DATE
BY
BY
NUMBER
REVISION
RTR
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Oct 30/92
ABÊ-SEMCÂ/ALLIB SSGIMAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
LIST 0F EFFECTIVE PAGES
SUBJECT
PAGE
DATE
TITLE PAGE
Oct 30/92 R
SUBJECT
PAGE
DATE
TES-SING AND
FAULT ISOLATION
Oct 30/92 R
Oct 30/92 R
RECORD 0F
REVISIONS
1
2
Oct 30/92 R
BLANK
RECORD 0F
TEMPORARY
REVISIONS
DISASSEMBLY
4
Oct 30/92 R
CLEANING
Oct 30/92 R
Oct 30/92 R
1
2
Oct 30/92 R
BLANK
CHECK
Oct 30/92 R
LIST 0F
EFFECTIVE PAGES
REPAIR
1
2
Oct 30/92 R
Oct 30/92
1
2
Oct 30/92 R
BLANK
SERVICE
BULLETIN LIST
Oct 30/92 R
ASSEMBLY,
INCLUDING
STORAGE
5 Oct 30/92 R
6 Oct 30/92 R
FITS AND
CLEARANCES
TABLE 0F
CONTENTS
1
2
Oct 30/92 R
Oct 30/92 N
1
2
Oct 30/92 R
Oct 30/92 N
INTRODUCTION
6
Oct 30/92 R
6
Oct 30/92 R
SPECIAL TOOLS,
FIXTURES AND
EQUIPMENT
ILLUSTRATED
PARTS LIST
DESCRIPTION
AND OPERATION
1
2
6 Oct 30/92 R
7 Oct 30/92 R
8 Oct 30/92 R
Oct 30/92 R
Oct 30/92 R
LEP
21-52-22
Page 1/2
Oct 30/92
ABJÊ-SENCA/ALLIED)
SIGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
SERVICE BULLETIN LIST
MODIFICATION INC. IN STATEMENTOP
REV APPLICABIUTY
NUMBER
21-52-22
MAL
COMPONENT MAINTENANCE NiANUAL
764AOOOO/764BOOOO
TABLE 0F CONTENTS
Page
Record of Révisions
Record of Temporary Révisions
List of Effective Pages
Service Bulletin List
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1. Gênerai . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Measurements . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
2
1. DESCRIPTION AND OPERATION
. . . . . . . . . . . . . . . . . . .
1
A.Description . . . . . . . . . . . . . . . . . . . . . . . . .
B.Opération . . . . . . . . . . . . . . . . . . . . . . . . . .
C.Technica'i Data . . . . . . . . . . . . . . . . . . . . . . . .
1
2
2
2. TESTING AND FAULT ISOLATION
. . . . . . . . . . . . . . . . . .
A.Gênerai . . . . . . . . . . . .
B.Spécial Tools and Equipment . .
C.Visual Check . . . . . . . . . .
D. Insolation Résistance Test . . .
E.Thennistor 1 check (pins C and D)
F.Thennistor 2 Test (pins E and F)
.
.
.
.
.
.
3
3
3
3
3
4
. . . . . . . . . . . . . . . . . . . . . . . . . .
4
4. CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
A.Gênerai . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.CIeaning Procédure . . . . . . . . . . . . . . . . . . . . . .
4
5
3. DISASSEMBLY
5. CHECK
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5
6. REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
7. ASSEMBLY. INCLUDING STORAGE
. . . . . . . . . . . . . . . . . .
5
A.Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
6
8. FITS AND CLEARANCES
. . . . . . . . . . . . . . . . . . . . . .
6
TOC
91.CO.OO
•- 1 "\?fc""fc^.
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1
Ort 30/92
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Oct
ABMEMCA/AILLIEl
SCTAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
TABLE 0F CONTENTS (continuée!)
Page
9. SPECIAL TOOLS. FIXTURES AND EQUIPMENT
.............
6
. . . . . . . . . . . . . . . . . . . .
6
A.Gênerai . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.How to use thé IHustrated Parts Lut . . . . . . . . . . . .
6
6
10. ÏLLUSTRATED PARTS LIST
91-^9.99
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TOC
page
2
Ort 30/92
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Oct
A16-SIENCA/ALLIB 2.CTAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
INTRODUCTION
Gênerai
A. Th1s manual gives an thé necessary data to understand thé functlon,
repair and overhaul of thé Température Sensor. Air Transport Association
of Amènes spécification ATA 100, Revision No. 28, was used to prépare
this CW.
Thé Association Européenne des Constructeurs de Matériel Aérospatial,
simplifled Engllsh document PSC-85»16598, Révision No. 05, was also
used. An ILLUSTRATED PARTS LIST 1s included as a part of thé CMM.
B. Thé maintenance instructions are given in thèse sections:
-
Description and Opération
Testing and Fault Isolation
Disassembly
Cleaning
Check
Repair
Assembly, Including Storage
Fits and Clearances
Spécial Tools. Fixtures and Equipment.
C. Simulation has been used to verify thé Testing, Disassembly and Assembly
procédures.
Measurements
A. Thé measurements given in this manual are taken from original
manufacturing drawings.
B. Ail values given in this nsanual are in S.I. (Système International) units
or subdivisions of thèse units. U.S. units are given in parenthesis
immediately after thé S.I. units.
C. Units of Measure
A
g
in
k
Ibf.in
M
Ampère
Gram
înch
Kilo (prefix to units)
Pound force inch
Mega (prefix to units)
INTRO
21 •'52-22
nTwQ?
Oct 30/92
ABÊ-SEMCA/ALLIEE) SKMAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
m
ni
N.m
oz
YDC
"C
"F
h
Q.
Meter
MiMi (preflx to units)
Newton meter
Ounce
Volt direct current
Degree Celsius
Degree Fahrenheit
Per cent
Ohm
3. Abbreviations
Thé abbreviations given below are used in this manual:
ATA
Air Transport Association of America
Fi g.
Figure
IPL
Illustrated Parts List
P/N
Part number
para.
Paragraph
Réf.
Refer to
INTRO
^1 M 00
€. \ •O^-Z:^.
^9®
2
Qct 30/92
Alfâ-SiCÂ/MUB
SIGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
1. DESCRIPTION AND OPERATION
A. Description
(1) Thé température sensors consist of a cyliiidrical body wlth holes
bored through to allow passage of a1r for models 764AOOOO or a
shorter cylindncal body made of statnless steel ended wlth 2 tubes
for models 764BOOOO. A screw thread on thé sensor body pennlts
Installation 01' thé sensor Info thé System ducting.
(2) Thé sensors hâve a squared head wlth a lower clrcular section whlch
contains a groove for ? preformed packlng. An electrlcal slx-pln
connector 1s attached to fhe sensor head .
ELECTRICAL
CONNECTOR
ELECTRICAL
CONNECTOR
SECURING
THREAO
SFCURING
THREAD
SENSOR
BOOY
SENSOR
BOOY
o^i
AIR INLET
HOLES"
o o o
^o°o
0 0
TUBES
Température Sensor
Figure 1
2
21-52-22
Page
1
Oct 30/92
MCÂ/ÂILLIB SBÊÎflAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
B. Opération
(1) Thé sensor body contains a négative-température coefficient (NTC)
thennlstor. As thé ambient température changes, thé résistance of thé
thermlstor changes In proportion. Thé voltage measured across thé
thermlstor is thus related direct!y to thé température.
C. Technical Data
Dimensions:
- Max. length
" W1dth (across connector flats)
Welght
Installation Torque
Electrlcal Data:
- Thermlstor résistance values
- Value dacay factor
Température °C (°F)
0
+
+
+
+
+
+
+
+
20 (-4)
(+ 32)
10 (+ 50)
18 (+ 64.4)
25 (+ 77)
30 (+ 86)
40 (+ 104)
60 (+ 140)
80 (+ 172)
100 (+ 212)
90 imi (3.54 in)
25 mm (0.99 in)
0,050 kg (1.406 oz)
5 to 10 N.m
(44.2 to 88.5 Ibf.in)
Réf. Résistance Table Fi g. 2
Less than 0.05 % per year
Ohms
80090
29610
18820
13340
10000
8197
5598
2773
1475
833
Résistance Table (for information on1y)
Figure 2
21-52-22
Page
2
Oct 30/92
i-SEMCÂ/ALLIEB
SSÊNÂL
CGMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
2. TESTING AND FAULT ISOLATION
A. Gênerai
(1) Thé data that follows permit tests of thé sensor to make sure that it
opérâtes correctly.
B. Spécial Tools and Equipèrent
(1) Megohnnieter which supplies 45 VDC.
(2) Ohimieter w1th:
- Current less than 0,1 mA,
- Accuracy
0.05 %.
- Range
0-100 KQ.
(3) Température controHed oven : accuracy 0.1°C.
(4) Ohinneter-Sensor connection wires : 18 gauge, length less than 1 ni.
C. Visual Check
(1) Make a Visual check of thé sensor for obvious damage.
D. Insulation Résistance Test
(1) Apply 45 VDC between pins C. D, E and F connected together and ground
connected pin A. Thé minimum insulatlon résistance for hot condition
must be 400 MQ.
E. Thermistor 1 Check (pins C and D) (Réf. Fig. 3)
(1) Connect thermistor 1 to an ohmmeter w1th a measuring current of less
than 0,1 mA.
(2) Hold thé thermistor at a température of + 5°C ± 0.1°C î40.8°F to
41.2"F) by use of an oven w1th controlled température. Check
résistance value of thermistor is in thé range
23530 Q ± 950 Î2 .
91.co.oo
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PW
3
nrt
•în/o?
Oct 30/92
AIÊ-SINCA/ALLHED
SIGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
(3) Increase thé thermistor température to + 50°C ± 0.1°C (121.8°F to
122.2°F) by use of thé oven. Make sure that thé résistance value of
thé thennlstor 1s In thé range 3903 Q ± 220 Q.
F. Thennlstor 2 Test (pins E and F) (Réf. F1g. 3)
(1) Follows para. E steps (1) to (3) again for thennlstor 2.
LENOTH NOT MORE THAN 1 m. WIRE GAUGE 18
GT-
CURRENT NOT MORE THAN 0.1 mA
Dh-
Thennlstor Test Set-up
Figure 3
3. DISASSEMBLY
NOT APPLICABLE.
4. CLEANING
A. Gênerai
MARNIN6:
SOLVENTS ARE HAZARDOUS. DO NOT INHALE FUMES.
EYES AND SKIN MUST BE PROTECTED.
PARTS MUST BE CLEANED IN A DULY V['NTILATED ROOM.
CLEANING STEPS MUST NOT BE DONE IN THE VICINITY
OF ANY OPEN FLAME.
21-52-22
Page
4
Oct 30/92
AKB-SEMCA/ALLÏEIO)
SMAfL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
B. Cleanlng Procédure
(1) A complète unit shall not be cleaned by a dtpplng or spraylng method
to avold thé rétention of cleanlng matertal wlthln parts.
(2) Preferably. an protectlve caps sha11 be fitted to thé unit.
(3) Use a Hnt-free cloth molstened w1th Methyl Alcohol, accordlng to
MIL-A-6090 spécification, or a soft brush.
(4) Dry 1n low-pressure compressed air or with a Hnt-free cloth.
5. CHECK
A. Examine thé sensor for damage and dlstortlon especlally thé pins of thé
electrical connecter.
B. After thé check, Identlfy thé sensor as g1ven below:
(1) Can be used agaln,
(2) To be dlscarded.
6 . REPAIR
I
A. Thé Température Sensor is classified as "non-repalrable" and must be
discarded In thé case of defects or détective opération.
7. ASSEMBLY. INCLUDING STORAGE
A. Assembly
NOT APPLICABLE.
2
91-<î9-99
6
1 ^£.~£.£.
page
5
Oct 30/92
Â@Ê-SEMCÂ/ALL3ÎEI
SIGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
B. Storage
(1) Fit protection caps to electrical connector.
(2) Thé sensor must be stored in a clean, dry ventHated room at a
température ranging between 18°C and 28°C (64°F and 82°F) and a
relative humidity ranging between 25 and 65 ^.
(3) Thé sensor must be stored 1n its original packing.
If stacked storage 1s used, care must be taken to avotd damage caused
by excessive weight.
(4) Thé sensor must not be stored 1n thé v1c1n1ty of corroslve flulds.
heat or ozone sources.
8. FITS AND CLEARANCES
No dlmensional check of thé sensor 1s necessary.
9 . SPECIAL TOOLS. FIXTURES AND EQUIPMENT
No spécial tool is necessary.
10.ILLUSTRATED PARTS LIST
A. Gênerai
Thé Illustrâtes Parts Ust contai ns a parts list and an illustration of
thé part.
B. How to use thé niustrated Parts Ust
To flnd a part number if thé part used 1s know, identlfy thé
illustration which shows thé part. F1nd thé part and ils index number on
thé DetaHed Parts Ust page to give ils description and part number.
2
0-I.CQ.OO
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1 ^A.
Wr &€.
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& l
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6
nrf 30/92
WQ7
Oct
ABG-SENCA/AILLIB
SSGNAL
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
Température Sensor
Figure 1
21-52-22
AIBÊ-SBCA/ALLZEO»
3ÎWM.
COMPONENT MAINTENANCE MANUAL
764AOOOO/764BOOOO
SURE
\ND
rEM
PART
NUMBER
1A 764AOOOO-02
-1B 764AOv')00-03
1C 764BOOOO-01
NOMENCLATURE
AIRLiNE
STOCK
NUMBER 123.;567
SENSOR. TEMPERATURE
SENSOR. TEMPERATURE
SENSOR, TEMPERATURE
- ITEM NOT ILLUSTRATED
MISSINî ITEMS ARE NOT APPLICABLE
21-52-22
EFP. UNIT
PER
CODE ASSY
RF
RF
RF
Page
8
Oct 30/92