©2019 JBT LEKTRO, INC. All rights reserved.
October 2019
4-33
CHAPTER 4: COMPONENTS & CONTROLS
4.10.2
MULTI-LEVEL AIRCRAFT PROTECTION SYSTEM
Tractors equipped with a multiple-level Aircraft Protection System will include the following
controls:
•
Fender-mounted Winch control (1):
See
"FENDER-MOUNTED CONTROLS” on page
•
Fender-mounted Cradle control (2):
See
"FENDER-MOUNTED CONTROLS” on page
. As the Cradle is raised, the Programmable Logic Controller senses the weight of the
aircraft nose gear and selects the appropriate protection level.
•
Fender-mounted APS Level Buttons (3):
Series of buttons, typically four or five. Each
button corresponds to a configured aircraft nose landing gear weight, which will range from 1
(lightest) to either 4 or 5 (heaviest).
•
Instrument Panel Winch and/or Cradle switches (4;
if equipped
):
See
.
• Green Zero Light (5):
This light illuminates when the Aircraft Protection System is not
enabled. In this case, the Motor brakes are unlimited, and the Winch force is limited to the
configured Level 1 (lowest) setting.
•
Yellow Torque Caution Light (6):
This light illuminates and an alarm sounds when the
towing operation exceeds the configured maximum safe torque for the aircraft being towed.
The alarm stops sounding and the light turns off when the torque falls below the safe
maximum. You may continue the towing operation.
•
Red Torque Warning Light (7):
This light illuminates and an alarm sounds when the towing
operation exceeds a level that could damage the aircraft nose landing gear. If this happens,
see
"RESETTING THE AIRCRAFT PROTECTION SYSTEM” on page
1
2
3
6
5
2
4
7
8
AUTHORED BY ANTHONY HERNANDEZ - (415)786-2081 - [email protected]
