Document UT-MT-0780_EN
Page 5 of 39
Edition 03/10/2015
Supersedes edition 03/11/2014
LED INSET THRESHOLD AND THRESHOLD WING BAR LIGHT
LRTH04
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
INDEX
LIMITED PRODUCT WARRANTY ......................................................................................................... 2
SAFETY INFORMATION ...................................................................................................................... 2
EDITIONS ........................................................................................................................................... 4
REVISIONS .......................................................................................................................................... 4
LIST OF EFFECTIVE PAGES .................................................................................................................. 4
INDEX ................................................................................................................................................. 5
INDEX OF FIGURES ............................................................................................................................. 6
LIST OF ATTACHMENTS ..................................................................................................................... 7
1
GENERAL ......................................................................................................................... 8
2
MAIN FEATURES ............................................................................................................. 8
2.1
REMOVABLE LIGHT UNIT ................................................................................................ 8
2.1.1
Dome ..................................................................................................................... 8
2.1.2
Optical Assembly ................................................................................................... 9
2.1.3
Power Supply/Control Board ................................................................................ 9
2.1.4
Lower Cover ........................................................................................................ 10
2.2
SHALLOW BASE ............................................................................................................ 14
2.3
ELECTRONIC SECTION ................................................................................................... 15
2.3.1
Current / current conversion circuit (patented) ................................................. 15
2.3.2
LED command circuit .......................................................................................... 15
2.3.3
Control circuit ..................................................................................................... 16
2.4
ARCTIC KIT .................................................................................................................... 16
3
INSTALLATION .............................................................................................................. 17
3.1
PAVEMENT BORING AND SAWCUTTING ...................................................................... 17
3.1.1
Scheme of Light Configurations .......................................................................... 18
3.2
INSTALLING THE SHALLOW BASE ................................................................................. 20
3.3
INSTALLING THE LIGHT UNIT ON L-868 BASE, SIZE B ................................................... 24
3.4
SECONDARY WIRING .................................................................................................... 25
4
MAINTENANCE ............................................................................................................. 26
4.1
MAINTENANCE PROGRAM ........................................................................................... 26
4.1.1
Periodical Checks ................................................................................................ 26
4.1.2
Snowplow Operations ......................................................................................... 26
4.2
REMOVING AND OPENING THE LIGHT UNIT FROM THE BASE .................................... 27
4.2.1
Removing the fixture .......................................................................................... 27
4.2.2
Opening the fixture ............................................................................................. 27
4.2.3
Closing the fixture ............................................................................................... 27
4.2.4
Leakage test ........................................................................................................ 28
4.2.5
Reinstalling the fixture ........................................................................................ 28
4.3
PRIMS CLEANING .......................................................................................................... 29
4.3.1
Prism outside cleaning ........................................................................................ 29
4.3.2
Prism inside cleaning .......................................................................................... 29
