Jaeger 64538-300-1 Setup guide

<AEGEFjo
2 RUE BAUDIN- 92303 LEVALLOIS -PERRET-FRANCE
TEL:[phone] . BP 303 . TELEX JAEGER,LVALL 620 368
(F0216I
TACHOMETERINDICATOR
PART NUMBER
64538-300-l
COMPONENT MAINTENANCE MANUAL
WITH
ILLUSTRATED PARTS LIST
77.29.08
May 22/22
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JAEGER
Component Maintenance Manual
64538-300-l
RECORD OF REVISIONS
REV. ISSUE INSERTED REV. ISSUE INSERTED
NO. DATE . NO. DATE
DATE BY DATE BY
77-29-08
Record of Revisions
May 28/82
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JAEGER
Component Maintenance Manual
64538-300-l
RECORD OF TEMPORARY REVISIONS
REV. ISSUE INSERTED REMOVAL PAGE
NO. DATE DATE BY DATE BY NUMBER
77-29-08
Record of Temporary Revisions
May 28/82
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Title Page May 28/82
Record of
Revisions May 28/82
Record of
Temporary
Kevisions
May 28/82
List of
Effective
Pages
May 28/82
Service
Bulletin
List 2
List of
Approved
Repairers
May 28/82
1 May 28/82
2 May 28/82
Table of
Contents May 28/82
Introduction May 28/82
Description
and
Operation
1 May 28/82
2 May 28/82
3 May 28/82
4 May 28/82
5 May 28/82
6 May 28/82
7 May 28/82
8 May 28/82
9 May 28/82
10 May 28/82
11 May 28/82
12 May 28/82
JAEGER
Component Maintenance Manual
64538-300-l
LIST OF EFFECTIVE PAGES
PAGE DATE PAGE DATE
Testing 101 May 28/82
102 May 28/82
103 May 28/82
104 May 28/82
105 May 28/82
106 May 28/82
107 May 28/82
Illustrated TP-1
Parts INTRO-l
List INTRO-2
INTRO-3
NI/ALP-1
NI/NUM-1
NI/NUM-2
1001
1001-O
1001-l
1002-O
1002-l
1003-O
1003-l
1003-2
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
Ott 15/81
77-29-08
List of Effective Pages
Xay 28/82
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JAEGER
Component Maintenance Manual
64538-300-l
SERVICE BULLETIN LIST
SERVICE MOD.
BULLETIN STATE DATE DESCRIPTION
IDENT
77-29-08
Service Bulletin List
May 28/82
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JAEGER
Component Maintenance Manual
64538-300-l
LIST OF APPROVED REPAIRERS
COMPANY ADDRESS
JAEGER
FRANCE
2, rue Baudin
92303 LEVALLOIS-PERRBT
UNITED STATES AND CANADA
Jaeger Aviation Corp. 8053 Deering Ave.
(A subsidiary of JABGER-FRANCE) Canoga Park, Ca. 91304
Tel : [phone]
Tlx : 65-1442
Air Lab, Inc. 641 Industry Drive
Seattle, Wa. 98188
Tel : [phone]
Aviation Fewer Supply, Inc. 3111 Kenwood Street
(for TURBOMBCAengine equipment only) Burbank, Ca. 91505
Tel : [phone]
Tlx : 67-3281
A. Biederman, Inc. 1045 Air Way
Glendale, Ca. 91201
Tel : [phone]
Executive Instruments, Inc. 4141 Lindbergh Drive
P.O. Box 216
Addison, Tex. 75001
Tel : [phone]
Hermetic Aircraft Instrument Corp. 200 Marine Street
Parmingdale, Long Island, N.Y. 11735
Tel : [phone]
TIx : 96-1329
Spar Aerospace Ltd. 825 Caledonia Rd.
Toronto, Ontario M6B3X8
Tel : [phone]
77-29-08
List of Approved Repairers
Page I.
May 28/82
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JAEGER
Component Maintenance Manual
64538-300-l
LIST OF APPROVED REPAIRERS (Cont'd)
COMPANY ADDRESS
ENGLAND
FIELD AVIATION ACCESSORIES LTD 704 Purley Way, Croydon Airport
Croydon, Surrey, CR0 4RS
Tel : [phone]
Tlx : 8813793
77-29-08
List of Approved Repairers
Page 2
May 28/82
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JAEGER
Component Maintenance Manual
64535-300-l
TABLE OF CONTENTS
Pages
DESCRIPTION AND OPERATION ............................... 1
TESTING AND TROUBLE SHOOTING .......................... ..lo 1
ILLUSTRATED PARTS LIST ............................... ..lOo 1
77-29-08
Table of Contents
Ma17 28/82
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JAEGER
Component Maintenance Manual
64538-300-l
INTRODUCTION
This manual describes the Tachometer Indicator P/N 64538-300-l
and provides the users with all necessary information regarding
the operation, maintenance and testing of this equipment. It also
contains an Illustrated Parts List serving to identify all the
components comprising this instrument.
77-29-03
Introduction
May 23/32
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JAEGER
Component Maintenance Manual
64538-300-l
DESCRIPTION AND OPERATION
1. DESCRIPTION
A. General (Ref. Fig.11
The tachometer indicator covered by this manual indicates
percentage generator speeds.
The indicator mechanism consists of an eddy current
tachometric unit, coupled to a three-phase synchronous motor,
the rotor of which revolves in synchronism with a two-pole,
three-phase generator, to which it is electrically connected.
The calibrated scale is expanded in the normal operating
range to provide accurate readings.
Integral lighting, supplied from two
23 VDC sources, is
provided to illuminate the presentation.
General View
Figure 1
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JAEGER
Component Maintenance Manual
64533-300-l
B. Data
Range
Associated equipment
Sensitivity
Pointer deflection
Case size
Electrical connections
(fixed)
Integral lighting
- Voltage
- Consumption
Temperature ranges
- Operating
- Storage
4 to 110 % RPM
2-pole generator per MIL-G-26611.
The instrument indicates 100 % RPll
when the generator's rotational
speed is 8401 RPM.
313"50' for 110 % RPM divided
as follows :
159'25' from Oto 85 %RPM
150" from 85 to 105 % RPM
go25 ' from 105 to 110 % RPM
57 mm dia per NF L 7O-1lOA
g-pin receptacle per NAS 1599B
Edge-lighting (bluish-white)
- two clear lamps
- glass anti-reflective coated
per MIL-C-675A.
28 VDC
100 mA max.
- 50°C to + 7o"c
- 5o"c to + 9o"c
C. Detailed Description
--
The tachometer indicator consists of the following main sub-
assemblies :
- A motor.
- A movement.
- A case assembly fitted with M4 self-locking nuts to
accommodate the instrument mounting screws.
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JAEGER
Component Maintenance Manual
64533-300-l
GENERATOR
Connections correct
I
for counter-clockwise
rototion of generator
I (seen from driving end )
---w---y
A
INDICATOR B
C
L-
a D
- E
r --------
GENERATOR
Connections correct
for clockwise
rotation of generator
---- ( seen from driving end)
-------
F
Interconnection Diagram
Figure 2
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Bagc 3
May
23/32
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JAEGER
Component Maintenance Manual
64533-300-l
(lj Notor (Ref. Figs.3 and 4 and IPL Fig.3)
The motor comprises the following components :
(a) A 12-pole piece wound stator; this stator is
composed of a laminated magnetic circuit which
carries a 3-phase winding made of twelve star-series
connected coils.
A groove machined around the stator body provides
the means of attaching the motor (3-110) to the
mounting plate (3-90) by means of three clamps and
screws. Three terminals are secured to the stator
end cover with Loctite and provide electrical
connection to the receptacle (3-160).
The receptacle (3-160) is secured to a bridge (3-250)
by two screws (3-170). The bridge is held away from
the mounting plate (3-90) by two pillars (3-140) which
are held in position by two screws (3-100) and retai-
ning rings (3-150).
The electrical connections between the receptacle,
.-the motors and the terminal block are made through
_ two flexible printed circuits (3-180 and 3-190).
(b) A rotor, composed of a shaft on which are mounted
a hysteresis rotor and a freely rotating 4-pole
starter magnet ; these two components are coupled
together through a catch dog system limiting the
rotation of the magnet to a determined value.
(c) A magnetic circuit (3-lo), mounted at the forward
' end of the rotor shaft: it is held away from the
mounting plate (3-90) by a spacer (3-70) and washer
(3-30) and secured by a screw (3-20).
The magnetic circuit consists of :
- A 6-pole permanent magnet (30-l) fitted onto a
holder (30-2). The magnet consists of six small
bars which are cemented and potted.
- A keeper ring (3-40) which is attached to the holder
(30-2) by means of a spring washer (3-50) and three
screws (3-60).
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-May 28/82
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3-80y
3-70/
3110
JAEGER
Component Maintenance Manual
64533-300-l
3-20
3-60
3-250
Sectioned View of Motor
Figure 3
?7-23”,.0s
Pacje 5
May 23/32
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JAEGER
Component Maintenance Manual
64533-300-l
Neutral paint ,
aI
c~;~
0
0II10il
UAi0
0If
001
a
Stator Winding Diagram
Figure 4
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JAEGER
Component Maintenance Manual
64538 -300-l
2-160
2-40,
2-20
I
I-
1
b’! ‘4
f \
:-
Sectioned View of Movement
Figure 5
2-140
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JAEGER
Component Maintenance Manual
64538-300-l
(2) Movement (Ref. Fig.5 and IPL Figs. 2 and 3)
The movement is composed of :
(a) A measuring drum (2-10) which is fitted to one end
of the gear (2-100).
(b) A gear train which transmits the angular displacement
of the drum to the pointer. Jewelled bearings are
used throughout the movement to reduce friction to
a minimum. The gear train consists of :
- A gear (2-100) fitted with a hairspring (2-110)
and pivoting between the bridge (2-60) and the
lower plate (2-40). The free end of the hairspring
(2-110) is pinned to a post on an adjusting plate
(2-130) which pivots between the bridge (2-60) and
the upper plate (2-190). At the top of the adjusting
plate (2-130) is mounted a hairspring (2-20) whose
free end is pinned to a post on the upper plate
(2-190).
Two adjusting setscrews (2-80) are fitted into
.- the bridge (2-60).
- A pointer gear (2-160) carrying the pointer
and pivoting between the bridge (2-140) and the
upper plate (2-190); the wheel of this gear
meshes with the wheel of the gear (2-100).
The gear train lies between the upper plate (2-190)
and the lower plate (2-40). The two plates are separated
by four short pillars which are riveted to the lower
plate and attached to the upper plate by four screws.
The movement is assembled to the motor by the way of
four long pillars which are riveted to the upper plate
(2-190) and attached to the motor plate by four screws.
(3) Case Assembly (Ref.Fig.6 and IPL Figs 1,2 and 3)
The case assembly and presentation of the tachometer
indicator are comprised of :
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JAEGER-
Component Maintenance Manual
64538-300-l
(la) A case (l-160) consisting of a moulded flange and
a pressed case which are secured together with araldite.
Four locknuts are fitted into the corners of the flange
to accommodate the fixing screws.
Two recesses are machined into the lower corners of
the case flange to accommodate printed circuit boards.
Each board, which is screwed in and then secured with
Silastene, is fitted with a contact leafspring and
a holder containing a clear lamp (l-150). The contact
leafspring and lamp holder are connected to a connection
plate (l-170) via two wires, red and white, held in place
with adhesive tape and dabs of Araldite within the
case.
The connection plate (l-170) is secured to the bottom
of the case (l-160) by two screws and a locating pin:
it is energized by means of the three contacts (3-220)
of the terminal block (3-200), these being held against
each of the three contact strips under the action of
the springs (3-230). The terminal block (3-200),
attached to the motor bridge, is itself connected
to the pins of the electrical receptacle by a flexible
printed circuit (3-180).
The bottom of the case has a union which provides
the means of filling the instrument with nitrogen.
On conclusion of the filling procedure, this union
is blanked off with a screw and sealing ring.
The case is finished in dull black and carries a
modification label (l-240) and an identification
label (l-230).
(b) A dial (l-90) secured to two spacers on the upper
plate of the movement.
(c) A pointer (l-80) fitted to the forward end of the
pointer gear (2-260).
(d) A bezel assembly comprising :
- A spacer ring (l-70) seated on the upper plate
of the movement.
- Two sealing rings (l-160), of which one is seated
between the spacer ring and the upper plate and
the other between ihe spacer riny and the glass
assembly.
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JAEGER
Component Maintenance Manual
64538-300-l
l-160
Red lead
White lead -l--j
Integral Lighting System
Figure 6
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JAEGER
Component Maintenance Manual
64538-300-l
1 A glass assembiy (l-50).
- A packing washer (l-40) located between the
glass assembly and the bezel.
- A bezel (l-10) secured to the case flange by
eight screws, including a special one which
may be sealed when the final assembly and tests
are completed.
2. OPERATION
A. Operation of Motor
A three-phase alternating current supplied by a tachometer
generator flows through the winding of the stator; the
frequency of this current is proportional to the speed to
be measured.
Under the effect of the rotating field produced by this
current, the hysteresis rotor initiates its revolving
movement as does the magnet : both are additive in effect
to ensure synchronous rotation of the assembly from start-up.
Is. Operation of Speed Measurement and Indication
System
-
(Ref. Figs. 5 and 7)
The permanent magnet, fitted to the end of the rotor shaft,
produces a magnetic field which passes through the skirt
of the measuring drum and closes within the keeper ring.
Ref. fig. 7.
This magnetic field, by its rotating action, induces Eddy
currents into the measuring drum produced from a conducting
metal; these currents, by interaction with the field respon-
sible for their production, develop a driving torque along
the drumstaffwhich is proportional to the speed of the flux
variation and, hence, to the speed to be measured.
From 0 to 85 %, the hairspring (2-110) fitted to the drum
gear (2-100) opposes rotation of the drum so that its angle
of deflection, corresponding to its equilibrium position,
is equally proportional to the rotational speed of the
permanent magnet and hence to the speed to be measured.
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