DOCUMENT REVISION September 17, 2009 2529 E Instruction Manual Model 4 – LED Style III Taxiway Omni-directional Light (TOL) L-852T Pro-III In-pavement Omni-directional Fixture Cooper Industries Crouse-Hinds Division Airport Lighting Products 1200 Kennedy Road Windsor, CT 06095 Copyright © 2009 Cooper Technologies Company For Parts or Technical Service Call (860) 683-4300
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 1 Revisions Revision Issue/Reissue Letter Number Description Created/Updated Checked Approved A A205-291 INITIAL RELEASE DAT KWF JMM PG KWF 7/3/08 PG KWF 1/20/09 PG KWF 4/7/09 PG KWF 9/17/09 B A208-078 C A208-230 D A209-037 E A209-092 Added item 31 to Figure 5; Parts List, added item 31 & item 8 P/N was 10000-506 & qty was 6 for 12 inch version; 8.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 2 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.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 3 Safety Notices This equipment is normally used or connected to circuits that may employ voltages that 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: 3.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 4 Table of Contents Title Page 1 Revisions 2 Limited Product Warranty 3 Safety Notices 4 Table of Contents 5 Part Number Explanation 6 General Description 6.1 Taxiway Omni-directional Light, L-852T 7 Installation 8 Maintenance 8.1 Cleaning Lenses 8.2 Relamping 8.3 Power Supply Replacement 8.4 O-Ring Replacement 8.5 Lens Replacement 8.6 Feed-thru Replacement 8.7 Pressure Test 8.8 Cleanliness and Workmanship 8.
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DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 6 General Description 6.1 Taxiway Omni-directional Light, L-852T The Crouse-Hinds Taxiway Omni-directional Light is a Style 3, FAA L-852T per FAA AC 150/5345-46D. It is designed for installation at the taxiway edge or any other location where visual guidance of moving aircraft or ground vehicles is desirable.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T The preferred method of maintaining these lights is to periodically and systematically replace the units and return it to the maintenance shop for renovation. As an alternative, the units can be serviced in the field. However, it is recommended that field servicing be limited to cleaning the lens only as described in section 8.1. 8.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T Every time the unit is opened, the o-ring must be closely examined and replaced, if necessary. Any o-ring that is stretched, torn, has permanent set, or some other defect which would prevent it from forming a watertight seal must be replaced with a new o-ring. NOTICE: NOTICE A bad o-ring seal is the most common cause of inset fixture leaks.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T Outer Lens with Heater: Outer Lens/Heater Replacement Kit P/N 21333 contains all necessary parts to change a lens/heater assembly.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T A daily operation check should be made of the lighting fixture. The lights should be energized and visually inspected. If any fixtures are out, the location of the fixture should be recorded and the unit inspected at a time when the circuit is de-energized. (See Section 8.2) 8.9.1 Regular cleaning is necessary in order to insure that inset lighting fixtures operate at maximum efficiency.
DOCUMENT 2529 REV. E Instruction Manual Model 4 – Style III Taxiway Omni-directional Light L-852T 9 Parts List ITEM NO. STANDARD W/ HEATER STANDARD W/ HEATER STANDARD W/ HEATER 852T4-8 852T4-8-1 852T4-12A 852T4-12A-1 852T4-12B 852T4-12B-1 PART NUMBER DESCRIPTION HOUSING, OPTICAL, 12-INCH 1 0 0 1 1 1 1 21273-XXX 2 1 2 0 0 0 0 21253 HOUSING, OPTICAL, 8-INCH 3 1 1 1 1 1 1 10035-62 O-RING, 3/32 THK, 6.25 I.D.
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