Whelen 9037501 User Manual
®
ENGINEERING COMPANY INC.
51 Winthrop Road
Chester, Connecticut 06412-0684
Phone: (860) 526-9504
Fax: (860) 526-2009
Internet: www.whelen.com
Sales/Service e-mail: aviation@whelen.com
Installation Guide: 90375( )-series
Models 9037501 - 9037504
P/N: 01-0790375-01 through -04
LED Position Light/Strobe Assembly
POSITION LIGHT:
Operational Voltage:. . . . . . . . . . 28 VDC (nominal)
Input Current: . . . . . . . . . . . . . . . 0.25 Amps
EQUIPMENT LIMITATIONS: An approved lighting
system consists of two lights, one located on each
wingtip. The baseplate must be mounted parallel to the
vertical and horizontal centerlines of the aircraft to project
the patterns properly. The strobe tube assembly must be
connected to a strobe power supply, such as Whelen
model 70888, 70879 or other approved models.
CONTINUED AIRWORTHINESS: The 90375 series
LED wingtip position light assembly is designed with 3
forward LED’s and two aft LED’s. If any one LED fails,
the unit must be repaired or replaced. Inspect the lens.
Replace if there is excessive scratching, discoloration or
cracking.
INSTALLATION PROCEDURES: The following
information is to assist in the installation of a Whelen
90375 Light System.
1. Choose the appropriate 90375( ) series
replacement light assembly.
2. The installation procedure described in the following
text will be confined to a single light installation, but
is identical for multiple light installations.
3. Make sure the existing system is equipped with an
appropriate sized breaker. Connect the Position
Light (J1) to existing mating 28VDC connector
(Whelen model #A442).
4. Connect the Air Frame ground to the case ground.
5. Connect the strobe, J2, to the strobe power supply
as shown in the figure. It is recommended that the
RF shield be connected to the strobe power supply
chassis and the lightning grounding braid be
connected to the Air Frame ground.
6. Remove the retainer from the light assembly.
7. Position the base of the new light assembly onto the
Aviation
mounting surface. Insert three (3) #6-32 pan head
TSO-C30c
TYPES I, II, III
APPROVED
TSO-C96a
CLASS II
APPROVED
MADE IN THE U.S.A.
The conditions and tests required for TSO approval of this
article are minimum performance standards. It is the
responsibility of those installing this article either on or
within a specific type or class of aircraft to determine that
the aircraft installation conditions are within the TSO
standards. TSO articles must have separate approval for
installation in aircraft. The article may be installed only if
performed under 14 CFR part 43 or the applicable
airworthiness requirements.
5.69
1.87
2.46
1.08
.618 MIN
Lightning
Grounding
screws into the mounting holes (clearing the wires) and
tighten firmly. Reinstall the forward position lens so that the
two notches are positioned under the shroud, with each notch
equidistant to the centerline of the retainer mounting post.
8. Reinstall lenses and retainer so as to clear the two internal
wires.
9. Check all avionics systems for interference from the
installation.
10. A flight check should be performed by a properly certified
pilot.
11. Update aircraft records, complete Form 337 and obtain FAA
field approval for installation, as required.
Braid
1.25
POS -
3 CASE GROUND
POS 2 -
J1
123
WHITE (+28VDC)
POS -
1 BLACK (-) GROUND
J2
123
RF Shield
POS3-WHITE (TRIGGER)
POS 2 - BLACK (CATHODE)
POS 1 - RED (ANODE)
©2008 Whelen Engineering Company Inc.
Form No.14182A (073010)
Page 1
1
MOUNTING DIMENSIONS
.40
1.75
2
1.31 DIA
.36
1.00
.50
.880
.64
3 x 0.140 DIA
MOUNTING HOLE
3
FOR #6-32
SCREWS
4
13
5
12
7
6
QTY QTY QTY QTY
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
111
1
1
10 11
9
8
ITEM PART NUMBER DESCRIPTION
01-0790374-01
01-0790374-02
01-0790374-03
01-0790374-04
14-0050508-27
12222
1111111
1
1
1
1
1
1
1
111
19-170049-010
2
68-2290005-34
3
36-0050626-03
4
5
68-3950902A30
38-0230021-01
6
38-0130878-01
7
46-0771178-00
8
26-2217551-58
9
01-0290338-05
10
01-0290338-06
11
38-0250901-00
12
68-3950903A30
13
MODEL 9037501 FINAL ASS'Y (28V GREEN RFI)
MODEL 9037502 FINAL ASS'Y (28V RED RFI)
MODEL 9037503 FINAL ASS'Y (28V GREEN RFI)
MODEL 9037504 FINAL ASS'Y (28V RED RFI)
SCREW,6-32 x 5/16 PFHMS CSNK MS51959-27
RETAINER, A600 LENS COMPLETE
LENS, CLEAR/COATED
ASS'Y, FLASHTUBE A600 SERIES
LENS, CLEAR FWD POSITION LIGHT
GASKET, POSITION LIGHT SPLIT
GASKET, FLASHTUBE,A600 (.375)
SHIELDED WIRE ASSEMBLY
TUBULAR BRAID, TINNED COPPER, CUT TO 36"
ASS'Y, ANTICOL / POS LT GRN (28V)
ASS'Y, ANTICOL / POS LT RED (28V)
GASKET, TAIL POSITION LIGHT MODEL 90340
LENS, CLEAR TAIL POSITION LT HARDCOAT
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