Whelen 9058900 User Manual
IMPORTANT: Polarity of the
input wires must match the
polarity indicated on the
light assembly!
Fig.1
Fig.2
Fig.3
®
MADE IN THE U.S.A.
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
SPECIFICATIONS:
Nominal Operational Voltage:.................. 28VDC
Input Current (Nominal): .......................... 1.3 Amps
CONTINUED AIRWORTHINESS:
The Taxi Light, Model 9058900, consists of two banks of
seven LEDs, for a total of 14 LEDs. If one LED fails as a
short, the other 13 will continue to operate. If an LED fails
open, all seven LEDs in that bank will be off and the other
bank will operate normally. There is no FAR requirement for
this light. Inspect the lens. Replace if there is excessive
scratching, pitting, discoloration or cracking.
Installation Guide:
Aviation model: 9058900
P/N: 01-0790589-00
4-Inch Taxi Light Assembly
INSTALLATION PROCEDURES:
The following information is to assist in the installation of a
Whelen LED Taxi Light.
1. Remove the rear cover and cable clamps.
2. Engage the existing input cable with the cable clamps
and secure to the rear cover as shown in Fig. 1.
3. Before the rear cover is installed onto the light
assembly (Fig. 2), connect the taxi light inputs to the
assembly according to the polarity indicated. Note:
This unit is polarity sensitive and will not function
if not wired properly (see Fig. 3). Connect the power
lead to an appropriately sized breaker. Connections to
be in accordance with FAA approved methods. Coat
connections so as to prevent corrosion.
4. Using appropriate hardware, install light assembly and
insure that all leads are clear of any obstructions and
secure as required. Secure light assembly, using
vibration resistant threaded fasteners. NOTE: Make
sure the “UP” arrow is properly oriented.
5. Check all avionics systems for interference from this
installation.
6. A flight check should be performed by a properly
certified pilot.
7. Update aircraft records, complete Form 337 and obtain
FAA field approval for installation, as necessary.
Aviation
©2012 Whelen Engineering Company Inc.
Form No.14535 (112712)
Page 1
231
1
1
1
1
8
2
ITEM PART NUMBER DESCRIPTION
MODEL 9058900 TAXI LIGHT
4-40 X 7/16" PPHMS MS51957-16
6-32 X 3/8" PPHMS MS51957-28
CLAMP, CABLE
RETAINER, LENS
LENS, SPREADER
REFLECTOR, OPTIC
SUB-ASSEMBLY, 90589
COVER, BACK
01-0790589-00
14-0050505-16
19-171146-300
68-1181212A3S
68-5971090-01
01-0271692-00
11-271688-100
14-0050503-28
07-531313-005
QTY
4
5
6
7
8
14
*
4.488
5.09
.394
.394
2.48
3.03 (REF)
4.70
1.80
5
3
4
6
7
8
ENGINEERING COMPANYINC., CHESTER, CT 06412-0684, (860) 526-9504
MODEL90589
PN: 01-0790589-00
28 VDC 1.3AMPS
MFG DATE: XX/XX
REV. X
SN:XXXXX
WWW.
.COM
®
PROTECTTHE POLYCARBONATE LENS FROM
CLEANING SOLUTIONSAND HYDRAULIC FLUID
DURING MAINTENANCE
1
2
TOP
VIEW
FRONT
VIEW
Lens Replacement:
1. Remove the #4-40 lens retainer screws (Item 1). Remove the retainer and replace the
outer lens.
2. When re-assembling, note the longer post on the backside of the reflector (Item 4)
mates to the deeperholeof the sub-assembly (Item 5) shownatright.
3. To prevent damage to the lens, do not overtightenthe #4-40 screws. Tighten until there
is no gap between the retainer (Item 2) and sub-assembly (Item 5), then torque screws
to 3-5 lb/in.
64971D
J1
CAUTION!
Protect the polycarbonate
lens from cleaning solutions
and hydraulic fluids during
maintenance.
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