Tronair JP30, Operation & Service Manual, Page: 9 / 83

Models: JP30, JP30L
Electric Towbarless Tug
07/2015 | Rev. 10 Page | 5
5.0 TECHNICAL DATA (continued)
5.5 BATTERIES
The JP30 has eight 6 volt batteries connected in series for 48 volts and 235 Ah (20 hr rate). The JP30L has sixteen 6 volt
batteries connected in series and parallel for 48 volts and 470 Ah (20 hr rate).
5.6
GROUND POWER UNIT
30 volts are provided to assist starting aircraft engines. Fourteen feet of cable and two types of GPU plugs are provided,
including Cessna-style and Piper-style ends.
5.7
BATTERY CHARGER
JP30 A built-in automatic 25 AMP 48 Volt DC charger is shipped wired for 115 (120) Volts AC, 13 AMP, 60 HZ. It can
operate off a standard 120 Volt AC, 20 amp circuit. The charger can be configured for 230 Volts AC Single Phase 50/60 HZ by
changing the fuse positions. Instructions for changing the fuse positions can be found in the Quick Charge Manual
(Appendix V).
JP30L A built-in automatic 40 AMP 48 Volt DC charger is shipped wired for 115 (120) Volts AC, 20 AMP, 60 HZ. It must
operate from a 125 Volt AC, 30 amp circuit. It can be configured for 230 Volts AC Single Phase 50/60 HZ by changing the fuse
positions. Instructions for changing the fuse positions can be found in the Quick Charge Manual (Appendix V).
5.8
BRAKING
Regenerative braking is provided by the solid state motor controller. Braking occurs as the Joystick is moved toward the
Neutral upright position. Braking strength ramps up based on the programmed deceleration curve.
5.9
PARKING BRAKE
An electrically released disk brake is mounted on the drive motor. The parking brake sets automatically when the Person
Present (deadman) switch on the Joystick is released
and regen braking has brought the JETporter to a stop. A Parking Brake
Hand Button is to the left of the steering wheel. This button is to be used to eliminate the time laps between the release of the
Joystick and the automatic setting of the parking brake when stopping on inclines.
5.10
WINCH
A heavy duty, two-speed hand winch is standard. A nylon strap is included so that aircraft will not be damaged or scratched.
5.11
LIFT CRADLE
A direct current motor and hydraulic pump operate two lift cylinders that raise and lower the nose wheel lift cradle. Control is
by “Raise” and “Lower” push buttons located on the control panel. The lift cradle is designed to accommodate both dual and
single nose wheels.
5.12
STEERING AXLE
Dual 4.80 x 8” (16 inch O.D.) industrial tires are used for steering. The steering axle assembly rides on tapered roller bearings,
as do the wheels. The steering axle moves in a 120º arc to provide a very tight turning radius.
5.13
STEERING
A 16” industrial steering wheel provides comfortable steering without power assist. An industrial oil bath gear reducer provides
primary gear reduction. Secondary reduction is provided by roller chain. The steering wheel is tilted rearward 10º from
horizontal to provide the most comfortable and efficient driving position.
5.14
LIGHTING
Forward and rear LED headlights are included. Headlights are turned on with toggle switch. Strobe comes on when tug is
started.
5.15
DRIVE TIRES
Drive tires are dual 16 x 6-8 solid rubber traction tires.
5.16
OPERATORS PLATFORM
The operator’s platform is designed to accommodate the operator and one passenger. The platform is free from pedals and
brake levers that encumber the operator.