Cooper Industries
Crouse-Hinds Division
Crouse-Hinds Airport Lighting Products
1200 Kennedy Road
Windsor, CT 06095
DOCUMENT 8401
September 27, 2007
Revision H
860 683-4300
Fax 860 683-4354
Title:
INSTRUCTION MANUAL
L-850D
L-850C
L-850E
IN-PAVEMENT
EDGELIGHT
THRESHOLD
THRESHOLD
850C1
850D1
850E1
Copyright © 2007
850C2
850D2
Cooper Technologies Company
8401
Rev. H
REVISIONS
REVISION
NUMBER
A
ISSUE/REISSUE
LTR NUMBER
A84-284
B
A86-252
C
A97-517
D
A98-091
E
A99-054
F
G
A99-081
A202-243
H
A207-277
DESCRIPTION
Revised to reflect latest Advisory
requirements.
CHKD
12/20/84
D.C.W.
APPROVED
1) Pg. 1, Para. 2.3, 15 ft. lbs, 180 in. lbs.
torque was 18 ft. lbs., 225 in. lbs. torque.
2) Pg. 7, Fig. 1 added “load” and “non load”
bearing to titles.
3) Updated parts lists page 11-16.
Deleted P/Ns 20615 and 20617 from P/L and
Fig. 2, 3, & 4. Changed 3/4” depth
inpavement Fig. 1. Enlarged view B to 11/4”.
This manual completely revised and put into
Word.
Deleted item 17, 19359 Prism, Qty 2 & item
18, 19344 Gasket, Qty 2 from pgs 18, 21, &
24
Para 2.5, 1.25 inches below grade was 1.50
Item 4, 20693 was 20963 Housing Assembly
(B Version)
10/9/96
D.C.W.
10/9/96
C.A.S.
Title page, revised copyright; page 24, P/N
20462-2 was 20462 & added “and film disc
cutout” to description; page 25, items 41 &
42, deleted “(not used on 20462-1)” from
description
12/20/84
C.A.S.
9/16/97
E.F.L.
9/19/97
J.M.M.
3/10/98
RBM
3/19/99
KWF
5/17/99
11/7/02
TSD
GFR
9/27/07
PG
8401
Rev. H
ii
8401
Rev. H
LIMITED PRODUCT WARRANTY
THE FOLLOWING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT BY
WAY OF LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
Crouse-Hinds Airport Lighting Products (the “Company”) warrants to each original Buyer of
Products manufactured by the Company that such Products are, at the time of delivery to the Buyer, free
of material and workmanship defects, provided that no warranty is made with respect to:
(a)
any Product which has been repaired or altered in such a way, in Company’s
as to affect the Product adversely;
(b)
any Product which has, in Company’s judgment, been subject to
accident or improper storage;
judgment,
negligence,
(c)
any Product which has not been operated and maintained in accordance
with
normal practice and in conformity with recommendations and published
specification
Company; and,
of
(d)
any Products, component parts or accessories manufactured by others but
supplied
by Company (any claims should be submitted directly to the
manufacturer thereof).
Crouse-Hinds Airport Lighting Product’s obligation under this warranty is limited to use
reasonable effects to repair or, at its option, replace, during normal business hours at any authorized
service facility of Company, any Products which in its judgment proved not to be as warranted within the
applicable warranty period. All costs of transportation of Products claimed not to be as warranted and of
repaired or replacement Products to or from such service facility shall be borne by Purchaser. Company
may require the return of any Product claimed not to be as warranted to one of its facilities as designed by
Company, transportation prepaid by Purchaser, to establish a claim under this warranty. The cost of
labor for installing a repaired or replacement product shall be borne by Purchaser. Replacement parts
provided under the terms of this warranty are warranted for the remainder of the warranty period of the
Products upon which they are installed to the same extent as if such parts were original components
thereof. Warranty services provided under the Agreement do not assure uninterrupted operations of
Products; Company does not assume any liability for damages caused by any delays involving warranty
service. The warranty period for the Products is 24 months from date of shipment or 12 months from date
of first use whichever occurs first.
iii
8401
Rev. H
SAFETY NOTICES
This equipment is normally used or connected to circuits that may employ voltages which are dangerous
and may be fatal if accidentally contacted by operating or maintenance personnel. Extreme caution
should be exercised when working with this equipment. While practical safety precautions have been
incorporated in this equipment, the following rules must be strictly observed:
KEEP AWAY FROM LIVE CIRCUITS
Operating and maintenance personnel must at all times observe all safety regulations. Do not perform
maintenance on internal components or re-lamp with power ON.
RESUSCITATION
Maintenance personnel should familiarize themselves with the technique for resuscitation found in widely
published manuals of first aid instructions.
iv
8401
Rev. H
TABLE OF CONTENTS
Title Page..................................................................................................
Revision Page...........................................................................................
Limited Product Warranty........................................................................
Safety Notices...........................................................................................
Table of Contents......................................................................................
i
ii
iii
iv
v & vi
1.0
General Information...................................................................... 1
2.0
Installation
Instructions.................................................................
2.1
Pavement Preparations......................................................
2.2
Preparation for Mounting Ring Installation......................
2.3
Mounting Ring Installation...............................................
2.4
Optical Assembly Installation...........................................
2.5
Size B Optical Assembly Instruction................................
2
2
2
3
3
Maintenance..................................................................................
3.1 Cleaning Reflector and Light Prism.................................
3.2 Relamping.........................................................................
3.3 Replacing O-Ring.............................................................
3.4 Replacing Prism and Prism Gasket...................................
3.5 Cleanliness and Workmanship..........................................
3.6 Maintenance Program.......................................................
3
4
4
5
5
6
6,7
3.0
2
LIST OF ILLUSTRATIONS
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
-
L-850C Part Number Explanation..............................
L-850D Part Number Explanation..............................
L-850E Part Number Explanation..............................
Installation Details.........................................................
L-850C Inpavement Edge Light.................................
L-850C Inpavement Edge Light.................................
L-850D Inpavement Threshold and End Light...........
L-850D Inpavement Threshold and End Light...........
L-850E Inpavement Threshold and Approach Light..
L-850E Inpavement Threshold and Approach Light..
v
8
9
10
11
12
13
14
15
16
17
8401
Rev. H
TABLE OF CONTENTS (cont’d)
LIST OF TABLES
Parts List
Parts List
Parts List
L-850C
L-850D
L-850E
Inpavement Edge Light................................. 18-20
Inpavement Threshold and End Light........... 21-23
Inpavement Threshold and Approach Light.. 24,25
vi
8401
Rev. H
1.0
GENERAL
1.1
The Crouse-Hinds Semiflush Inpavement Lights described in this manual are installed in
runways and other locations where visual guidance of moving aircraft and other vehicles is
desirable. They are also used where taxiway exits intersect the runway and where two
runways intersect each other. The L-850C, D, and E are used to complete the visual
guidance effect of the elevated runway light and in threshold marking. It is weatherproof
and designed to withstand roll-over loads without damage. The Light Assembly consists of
a removalbe, water-tight optical assembly and a mounting ring that bolts to an L-867 or L868 Transformer Housing. The FAA Size B fixtures (-B versions) do not use a mounting
ring, they mount directly to an L-868B base.
1.2
The L-850C High Intensity Inpavement Edgelight is bi-directional projecting two (2) beams
of light 173° apart. Each beam of light is toed-in 3-1/2° towards the runway centerline.
(Reference Figure s 5 and 6)
L-850D High-Intensity Inpavement Threshold and Runway End Light is a bi-directional
light fixture. The two (2) projected light beams are opposed, one parallel with the runway
centerline and the threshold side toed-in toward the runway centerline at 3-1/2°. (Reference
Figures 7 and 8)
L-850E Inpavement Approach and Threshold Light is used in a Medium Intensity Approach
Light System (MALS) application. It is a uni-directional light fixture and projects a
straight beam of light parallel with the runway centerline. L-850E (modified) is a unidirectional unit similar to the above except projects a 3-1/2° toed left or right light beam
(supplied with a 185 watt lamp only) and is designed to meet ICAO Category I, II, and III
and USAF requirements. Only green dichroic filters (P/N 20502) should be used in the L850E Threshold Light. (Reference Figures 9 and 10)
1.3
L-850C, D and E Optical Assemblies are O-ring sealed units basically consisting of two 6.6
ampere Lamp and Reflector subassemblies (only l lamp and reflector assembly is required
for the L-850E), prisms, and an Inner Cover Assembly. The Optical Assembly is housed in
a ductile iron casting which is fastened to either a Mounting Ring by six (6) 8/125 metric
bolts with lockwashers and is sealed with an O-ring or mounted directly to a Size B base.
The Light Assembly is 17-1/4 inches in daimeter, (12” in diameter for -B versions), and
approximately 4 inches deep.
1
8401
Rev. H
2.0
INSTALLATION INSTRUCTIONS
2.1
Pavement Preparations
The Inset Lights are designed to mount on a 16” diameter L-867 Class 1, Size D (non-load
bearing application such as L-850 Edge Lights) or a 15” diameter L-868 Size C (load
bearing) base or a 12” diameter L-868 Size B (load bearing) light base. The Transformer
Housing should be installed as shown in Figure 4.
2.2
Preparation For Mounting Ring Installation
Clean and dry all surfaces prior to installation of the mounting ring. If any of these surfaces
are damp, an inadequate bond (see next paragraph) will result and damage to the fixture can
be expected.
It is recommended that the base and pavement be at a temperature of not less than 50°F
(10°C) before using an adhesive to bond the mounting ring into place unless the adhesive
compound used is specifically designed for curing at lower temperatures.
2.3
Mounting Ring Installation
Bolt the Mounting Ring to the transformer housing with six (6) stainless steel bolts with
lockwashers as shown in Figure 4. These bolts should then be tightened to a torque of 15
foot pounds, approximately 180 +0 -10 inch pounds. It is recommended that Loctite #242
be applied to the bolts at installation. After the ring is securely fastened to the base, pour in
an appropriate sealing fillter around the outer edge of the ring until the void is filled. The
filler should be in accordance with item P-605 or P-606 of F.A.A. Standard Specifications
for the Construction of Airports. Item P-606 should be used with concrete and P-605 with
asphalt.
WARNING: Do not install rubber gaskets between the ring and base.
Watch out for the location of conduit hubs.
2
8401
Rev. H
2.4
Optical Assembly Installation
CAUTION: Never handle the Light Assembly by the leads as this can
break the waterproof seal.
The Optical Assembly is a completely sealed unit and should not be tampered with. It is
ready for installation when removed from the crate. Check the leads for continuity if there
is any question about the condition of the lamp.
Before placing the Optical Assembly into the mounting ring, properly engage the male twoprong L-823 connector(s) with the connector(s) provided as part of the external power
supply system. Place the Optical Assembly carefully into the base with the light channels in
the proper positions. Apply a drop of Loctite #242 to bolt threads of the six (6) 8/125 metric
mounting bolts. Engage the six bolts with lockwashers and torque to 180 inch pounds.
2.5
Size B Optical Assembly Installation
Size B fixtures require that the bases be installed with any two opposite mounting bolt holes
parallel to the runway centerline. The mounting surface of the base should be 1.25 inches
below grade, (the fixture will be .75 inches above grade). Before placing the Optical
Assembly into the base, properly engage the male two-prong L-823 connector(s) with the
connector(s) provided as part of the external power supply system. Place the Optical
Assembly carefully into the base with the light channels in the proper positions. Apply a
drop of Loctite #242 to bolt threads of the six (6) 8/125 metric mounting bolts. Engage the
six bolts with lockwashers and torque to 225 inch pounds.
3.0
MAINTENANCE
The preferred method of maintaining these lights is to periodically and systematically
replace the Optical Assembly and return the replaced assembly to the maintenance shop for
renovation. As an alternative, the Optical Assembly can be serviced in the field, but it is
recommended that field servicing be limited to cleaning the prism and contacts as described
in paragraph 3.1 below and to lamp replacements as described in paragraph 3.2.1.
NOTE:
See Figures 5 through 10 and Parts Lists for part location and
description.
3
8401
Rev. H
3.1
Cleaning Reflector and Light Prism
Remove the Optical Assembly from the mounting ring by loosening the six bolts and gently
lifting the assembly out of the base recess using Crouse-Hinds Installation Tool, P/N 20488.
With a compressed air blast or suitable brushes remove all accumulated debris from the light
channel, then clean the outer surface of the light prism with a detergent solution. If the light
prism is coated with a substance impervious to the detergent, a suitable solvent should be
sparingly applied with a wad of cotton or a patch of cloth on the end of a suitable wood
splint. After the solvent has acted, the remaining solvent and softened coating should be
removed with a clean piece of cotton or cloth. Care should be taken to avoid excessive
contact between the solvent and the gasket. The light prism should be subjected to a gentle
air blast to evaporate or remove all remaining solvent.
The reflector may be cleaned by first removing the four screws that hold the Lamp-Reflector
Assembly in place. Clean the reflector in a similar fashion as was used for light prism. Use
care not to bend the reflector.
3.1.1
Cleaning Filters
Wash with a mild non-abrasive detergent and water or unused isopropyl alcohol
using a clean, soft cloth.
3.2
Relamping
Remove the Optical Assembly from the mounting ring and clean the prisms, filter(s), and
reflector(s) if necessary.
3.2.1
The bulb can easily be removed by gently twisting the socket in a counterclockwise
direction. This will remove the bulb and socket from the mounting bracket. The
bulb can then be removed from the socket by twisting in a counterclockwise
direction.
CAUTION: Touching the quartz bulb with your bare fingers may seriously
shorten the lamp life. If the quartz bulb has been touched, wipe it carefully
with a piece of lens cleaning tissue or similar material moistened with isopropyl
alcohol.
Inspect Lamp socket for signs of corrosion. Replace socket if necessary
4
8401
Rev. H
3.2.2
Examine the O-ring carefully. If the O-ring is stretched or torn, or has a permanent
set or other defect which would prevent it from forming a watertight seal, it must be
replaced with a new O-ring. If a new O-ring is required, follow the procedure given
in paragraph 3.3 below.
NOTE: A BAD O-RING SEAL IS THE MOST COMMON CAUSE OF INSET
FIXTURE LEAKS. IT IS STRONGLY RECOMMENDED THAT NEW O-RING
IS INSTALLED EVERY TIME THE INNER COVER IS REMOVED.
3.2.3
3.3
Replace the Optical Assembly in its original orientation. Coat bolt threads with
Loctite #242 before installation and torque the bolts to 180 inch pounds (225 inch
pounds for -B Version).
Replacing O-ring
Every time the Optical Assembly is removed from the L-867 or L-868 Transformer
Housing, or the inner cover separated from the optical housing, all O-rings must be
examined as described in paragraph 3.2.2.
3.3.1
Remove all particles of the old O-ring from the groove by gently scraping. Be sure
not to damage the bottom and sides of the groove.
3.3.2
Coat the new O-ring with a thin layer of Dow-Corning No. FS 1292 Lubricant.
Carefully position the new O-ring in the center of the groove and press gently into
place.
NOTE: The groove is made wider than the O-ring to provide room for displacement
of the O-ring when compressed between the housing and mating surface when the
screws are properly torqued down.
3.4
Replacing Prism and Prism Gasket
If a prism is broken or its surface is badly pitted or scarred, both the prism and the prism
gasket must be replaced. It is highly recommended that the Optical Assembly be returned to
Crouse-Hinds if this is required. However, if field replacement is necessary, the prism may
be replaced as specified below.
3.4.1
With Optical Assembly taken out of the mounting ring, remove Lamp and Reflector
Assembly. Remove all particles of the old prism, prism seal and adhesive from
prism slot. Suggestion: CUT AROUND THE OUTSIDE OF PRISM SEAL USING
A SHARP INSTRUMENT. USING A BLOCK OF HARD WOOD PLACED
AGAINST THE INSIDE OF THE PRISM, HAMMER UNTIL PRISM SLIDES
OUT. To remove excess gasket and sealant, a rotary wire brush attached to an
electric drill is recommended.
5
8401
Rev. H
3.4.2
Clean the lens opening with alcohol and dry thoroughly. Apply one thin coat of
RTV primer Crouse-Hinds P/N 10048-3. Allow to dry one hour minimum, sixty
hours maximum, at room temperature. Apply RTV 106 Crouse-Hinds P/N 10048-2
to the prism and to the inside of the prism opening. Insert the prism into the opening
and orient as shown in Figures 5, 7 and 9. Lay a bead of RTV 106 along the top,
bottom, and sides of the back side of the prism. Form the bead into a fillet along the
top and bottom and fill any gaps between the housing and the prism. Do the same to
the front of the prism except for the top and bottom. Suggestion: All bonding
should be done when the relative humidity is at least 50%. Rainy days are ideal.
Remove protective tape after the adhesive has cured for a minimum of 72 hours.
3.4.3
Pressure Test
The assembly should be given a pressure check at 20 psig. This can be done by
fitting a 20253, 20257 or 20487 Inner Cover with an air line. This cover (with Oring) is then screwed into place and internal pressure applied. A soap solution can
be used to check for escaping bubbles around the light prisms.
3.5
Cleanliness and Workmanship
Service life depends upon the entire assembly being waterproof. All surfaces must be clean,
dry and free of all foreign matter. If the light fixture is to operate for extended periods
without requiring maintenance.
3.6
Maintenance Program
In order to ensure maximum light fixture life, the installed units should be subject to a
maintenance program in accordance with the following:
3.6.1
A daily operation check should be made of the lighting fixtures. The lights should
be energized and visually inspected. If any lamps are out, the location of the fixture
should be recorded and the lamps replaced at a time when the circuit is de-energized.
(See paragraph 3.2 Relamping.)
3.6.2
Regular cleaning is necessary in order that in-pavement lighting fixtures operate at
maximum efficiency. The prism and channel in front of the prism should be cleaned
periodically with a soft cloth and solvent. The regularity and type of cleaning will
be dictated by the weather and the location of the fixture.
6
8401
Rev. H
3.6.3
Snowplow operators should exercise extra care not to strike the light fixtures with
snowplow blades. After snow removal operations, inspect all light fixtures to locate
and replace, if necessary, any damaged light assemblies. Passes over the light rows
should be made with a power broom only if practical. Whenever snowplows must
traverse inpavement light fixtures, they should be either traveling at less than 5 mph
or have the blades lifted clear of the fixtures. Recommended snow removal
techniques are described in AC 150/5345-2.
3.6.4
The light is designed to exclude both ground and surface water from entering. If the
lights are not properly maintained (i.e., bolts tightened, and seals in good condition)
water may enter the fixture and become a serious problem. To prevent this from
occurring, it is recommended that each fixture be inspected for the presence of water
at least once a month. More frequent inspection is desirable during and following
rainy seasons.
3.6.5
Optical Assembly hold-down bolts should be checked for proper torque of 180 inch
pounds at least once every three months or whenever a fixture is serviced.
3.6.6
If any fixtures contains water, the water should be removed from the Optical
Assembly and the entire fixture cleaned and dried. The O-ring should be replaced,
the fixture repaired and reinstalled as specified herein.
7
8401
Rev. H
8
8401
Rev. H
9
8401
Rev. H
10
8401
Rev. H
11
8401
Rev. H
12
8401
Rev. H
13
8401
Rev. H
14
8401
Rev. H
15
8401
Rev. H
16
8401
Rev. H
17
8401
Rev. H
PARTS LIST L-850C
MEDIUM INTENSITY INPAVEMENT EDGELIGHT
ITEM
P/N
QTY.
DESCRIPTION
20250
REF
EDGELIGHT ASSY WITH TWO L-823
Connectors with Mounting Ring
20255
REF
EDGELIGHT ASSY WITH ONE L-823 Connector
with Mounting Ring
1
20183
1
2
3
10000-365M
11A12-031D
6
6
Ring, Mounting (For 15” Type L-868 or 16” Type
L-867 bases)
Bolt, Hex hd. 8/125 x 30 mm Lg.
Lockwasher, 5/16”
20251
REF
OPTICAL ASSEMBLY WITH TWO L-823
Connectors without Mounting Ring
20256
REF
OPTICAL ASSEMBLY WITH ONE L-823
Connector without Mounting Ring
4
4
5
6
7
8
9
10
4
12
15
14
13
20208
20693
20181
10000-220M
10000-252M
11A12-019D
10035-33-274
10048-30
10048-2
10048-3
20496
20538
20268
1
1
1
4
6
4
1
A/R
A/R
A/R
A/R
A/R
A/R
HOUSING ASSEMBLY (C VERSION)
HOUSING ASSEMBLY (B VERSION)
Housing
Screw, Pan Hd.
Screw, Flat Hd.
Lockwasher #10
O-ring
Loctite
RTV 106
Primer
Lamp, 115W
Lamp, 185W
Lamp, 200W
16
19341
2
PRISM ASSEMBLY
17
18
18
8401
Rev. H
PARTS LIST L-850C (cont’d)
ITEM
P/N
19
20545
22
23
24
27
28
29
30
31
32
33
34
35
20943
19096
20602
20148
10033-32
10033-47
10033-37
20073-X
20032
20209-R
20262-Y
20209-G
20
20546
22
23
27
25
29
30
28
31
32
33
34
35
19096
19096
20148
20603
10033-47
10033-37
10033-22
20073-X
20032
20209-R
20262-Y
20209-G
QTY.
1
1
1
1
1
2
2
3
A/R
A/R
A/R
A/R
A/R
1
1
1
1
1
2
3
2
A/R
A/R
A/R
A/R
A/R
DESCRIPTION
OPTICAL SUBASSEMBLY (LEFT)
Bracket-Reflector
Socket Holder
Bracket (Toed Left)
Reflector
Pop Rivet
Rivet
Rivet
Filter Assembly
Filter Retainer
Filter-Red
Filter-Yellow
Filter-Green
OPTICAL SUBASSEMBLY (RIGHT)
Bracket, Reflector
Socket Holder
Reflector
Bracket (Toed Right)
Rivet
Rivet
Pop Rivet
Filter Assy.
Filter Retainer
Filter-Red
Filter-Yellow
Filter-Green
INNER COVER ASSY for 20251 OPTICAL ASSY.
20253
1
20257
36
37
38
39
10037-376
19095
20017
10030-100
INNER COVER ASSY for 20256 OPTICAL ASSY.
1
2
4
4
Straddle Plate (for 20257 only)
Socket
Lead Lug
Washer, insulating, shoulder
19
8401
Rev. H
PARTS LIST L-850C (cont’d)
ITEM
P/N
QTY.
40
21038
A/R
41
43
44
46
47
48
42
49
50
51
52
45
20023
20254
10A06-016D08
11A12-016D
10030-57
10K04-025D
10047-409
10030-108
10035-33-010
10048-25
20327
10A06-016D12
2
1
2
4
8
4
2
4
4
A/R
A/R
2
DESCRIPTION
Lead Assy, L-823 Connector
(2 on 20253) (1 on 20257)
Spring Clip (for 20257 only)
Cover
Screw, Pan Hd. #8-32 x 1/4” Lg., SS
Lockwasher, Split, #8
Washer, Flat 1/4
Nut, Hex Jam, 1/4-20
Film Disc Cutout (for 20257 only)
Washer, Insulating (Flat)
O-ring
Grease, Lubricating
Stycast Kit
Screw, Pan Hd, #8-32 x 3/8” Lg., SS
20
8401
Rev. H
PARTS LIST L-850D
ITEM
P/N
QTY.
DESCRIPTION
20260
REF
THRESHOLD LIGHT ASSY WITH TWO L-823
CONNECTORS WITH MOUNTING RING
20265
REF
THRESHOLD LIGHT ASSY WITH ONE L-823
CONNECTOR WITH MOUNTING RING
1
20183
1
2
3
10000-365M
11A12-031D
6
6
Ring, Mounting (For 15” Type L-868 and 16”
Type L-867 Bases)
Bolt, Hex Hd. 8/125 x 30 mm Lg.
Lockwasher, 5/16”
20261
REF
OPTICAL ASSEMBLY WITH TWO L-823
CONNECTORS WITHOUT MOUNTING RING
20266
REF
OPTICAL ASSEMBLY WITH ONE L-823
CONNECTOR WITHOUT MOUNTING RING
4
20208
1
HOUSING ASSEMBLY (C VERSION)
4
20693
1
HOUSING ASSEMBLY (B VERSION)
5
6
7
8
9
10
11
12
15
14
13
20181
10000-220M
10000-252M
11A12-019D
10035-33-274
10048-30
10048-2
10048-3
20496
20538
20268
16
19341
1
4
6
4
1
A/R
A/R
A/R
A/R
A/R
A/R
2
Housing
Screw, Pan Hd.
Screw, Flat Hd.
Lockwasher #10
O-ring
Loctite
RTV 106
Primer
Lamp, 115W
Lamp, 185W
Lamp, 200W
PRISM ASSEMBLY
17
18
21
8401
Rev. H
PARTS LIST L-850D (cont’d)
ITEM
P/N
QTY.
1
DESCRIPTION
19
20547
22
23
24
27
28
28
30
31
33
35
32
20943
19096
20227
20148
10033-32
10033-47
10033-37
20073-X
20209-R
20209-G
20032
20
20548
1
OPTICAL SUBASSEMBLY (TOED RIGHT)
As above, except:
25
20228
1
Bracket (Toed Right)
21
20549
1
OPTICAL SUBASSEMBLY (STRAIGHT)
As above except:
26
28
20613
10033-39
1
2
Bracket, straight
Rivet (Replaces 10033-32)
1
1
1
1
2
2
3
A/R
A/R
A/R
1
20253
OPTICAL SUBASSEMBLY (TOED LEFT)
Bracket-Reflector
Socket-Mounting
Bracket (Toed Left)
Reflector
Pop Rivet
Rivet
Rivet
Filter Assy.
Filter, Red
Filter, Green
Filter Retainer
INNER COVER ASSY FOR 20261 OPTICAL ASSY.
1
INNER COVER ASSY FOR 20266 OPTICAL ASSY.
20257
36
37
38
39
40
10037-376
19095
20017
10030-100
21038
41
43
44
20023
20254
10A06-016D08
1
2
4
4
A/R
2
1
2
Straddle plate (for 20257 only)
Socket
Lead Lug
Washer, Insulating, Shoulder
Lead Assy. L-823 Connector
(2 on 20253) (1 on 20257)
Spring Clip (for 20258 only)
Cover
Screw, Pan Hd. #8-32 x 1/4” Lg., SS
22
8401
Rev. H
PARTS LIST L-850D (cont’d)
ITEM
P/N
QTY.
46
47
48
42
49
50
51
52
45
11A12-016D
10030-57
10K04-025D
10047-409
10030-108
10035-33-010
10048-25
20327
10A06-016D12
4
8
4
2
4
4
A/R
A/R
2
DESCRIPTION
Lockwasher, Split, #8
Washer, Flat 1/4
Nut, Hex Jam 1/4-20
Film Disc Cutout (for 20257 only)
Washer, Insulating (Flat)
O-ring
Grease, Lubricating
Stycast Kit
Screw, Pan Hd., #8-32 x 3/8” Lg., SS
23
8401
Rev. H
PARTS LIST L-850E
ITEM
P/N
20480
2
3
1
10000-365M
11A12-031D
20481
QTY.
REF
DESCRIPTION
THRESHOLD LIGHT ASSY WITH MOUNTING
RING
6
6
1
Bolt, Hex Hd. 8/125 x 30 mm Lg.
Lockwasher, 5/16
Ring, Mounting (for 15” or 16” Can Type L-867)
20483
REF
OPTICAL ASSY WITHOUT MOUNTING RING
4
20484
1
5
9
6
8
7
10
11
12
15
14
13
20485
10035-33-274
10000-220-M
11A12-019D
10000-252M
10048-30
10048-2
10048-3
20496
20538
20268
16
19341
1
PRISM ASSY.
20462-2
1
INNER COVER ASSY. WITH ONE L-823
CONNECTOR AND FILM DISC CUTOUT
19095
20017
10030-100
21038
20254
10A06-016D08
11A12-016D
10030-57
1
4
4
1
1
4
4
8
Socket
Lead Lug
Washer, Insulating, Shoulder
Lead Assy. (L-823 Connector)
Cover
Screw, Pan Hd. - #8-32 x 1/4” Lg., SS
Lockwasher, Split, #8
Washer, Flat 1/4
1
1
2
2
6
A/R
A/R
A/R
1
1
1
HOUSING ASSY
Housing, Optical
O-ring
Screw, Pan Hd. 5/80 x 8 mm Lg.
Lockwasher, Split #10
Screw, Flat Hd. 4/70 x 6 mm Lg.
Loctite 242
RTV 106
Primer
Lamp, 115W
Lamp, 185W
Lamp, 200W (FAA MALS SYSTEM ONLY)
17
18
37
38
39
40
43
44
46
47
24
8401
Rev. H
PARTS LIST L-850E (cont’d)
ITEM
P/N
QTY.
DESCRIPTION
49
50
48
41
42
10030-108
10035-33-010
10K04-025D
20023
10047-409
4
4
4
1
1
Washer, insulating, (flat)
O-ring
Nut-Hex Jam, 1/4-20
Spring Clip
Film Disc Cutout
21
20499
1
OPTICAL SUBASSEMBLY (STRAIGHT)
22
23
27
26
29
28
30
31
32
35
20943
19096
20148
20226
10033-47
10033-39
10033-37
20073-X
20032
20209-G
1
1
1
1
2
2
3
1
1
1
Bracket-Reflector
Socket-Mounting
Reflector
Bracket, Straight
Rivet
Pop Rivet
Rivet
Filter Assembly
Filter Retainer
Filter-Green
19
20600
1
OPTICAL SUBASSEMBLY (TOED LEFT)
22
23
26
27
28
29
30
15
14
31
32
35
20943
19096
20227
20148
10033-39
10033-47
10033-37
20268
20538
20073-X
20032
20209-G
1
1
1
1
2
2
3
1
1
1
1
1
Bracket, Reflector
Socket, Mounting, Toed Left
Bracket
Reflector
Rivet
Rivet
Rivet
Lamp, 200W
Lamp, 185W
Filter Assy.
Filter Retainer
Filter, Green
20
20601
1
26
51
52
20228
10048-25
20327
OPTICAL SUBASSEMBLY (TOED RIGHT)
Same as above, except:
Bracket, Mounting, Toed Right
Grease, Lubricating
Stycast Kit
1
A/R
A/R
25