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©2019 JBT LEKTRO, INC. All rights reserved.
October 2019
LEKTRO 88/89 SERIES - OPERATION MANUAL
5.6
USING THE OPTIONAL GPU
Your LEKTRO 88/89 Series tractor may be equipped with an optional GPU capability that offers
an 1175 cold-cranking ampere power supply at 12, 24, or 28 volts. See
The GPU Batteries must have at least 25% charge available before starting an aircraft, to avoid
deep-discharge damage. The GPU Battery Power Gauge displays the current charge level. Be
aware that cold temperatures may increase the aircraft demand.
5.6.1
POSITIONING EQUIPMENT & PERSONNEL
Position the tractor such that neither it nor attending personnel will be exposed to the engine
intake or potential propeller arc and roll-ahead path during any part of the aircraft starting
procedure or immediately thereafter.
DANGER
NEVER POSITION THE TRACTOR DIRECTLY IN THE TAXI PATH FORWARD OF A
JET ENGINE INTAKE OR SPINNING PROPELLER.
When positioning equipment and personnel:
1. Chock the aircraft to prevent movement, as follows:
>
Aircraft with nose-mounted propeller/intake:
Forward and aft of the main gear.
>
Aircraft with wing-mounted engines:
Forward and aft of the nose wheel (tricycle gear)
or tail wheel (conventional/taildragger).
2. Position the tractor and personnel, as follows:
>
Aircraft with nose-mounted propeller/intake:
Position the tractor behind the propeller/
intake danger zone. Servicing personnel must always be behind the tractor.
>
Other aircraft:
Position the tractor directly in front of the aircraft nose at 90 degrees to
the aircraft centerline. This adds safety by making the tractor the first point of contact in
case the aircraft brake fails or is released prematurely, instead of a spinning propeller or
jet intake.
WARNING
ALWAYS REMAIN CLEAR OF THE AIRCRAFT ENGINE OPERATING AND
POTENTIAL MOVEMENT AREA DURING AND AFTER THE START SEQUENCE.
AUTHORED BY ANTHONY HERNANDEZ - (415)786-2081 - [email protected]
