Tronair JP30, Operation & Service Manual, Page: 6 / 83

Models: JP30, JP30L
Electric Towbarless Tug
07/2015 | Rev. 10 Page | 2
2.2
OPERATING SAFETY GUIDELINES (continued)
7. The JETporter is equipped with a safety brake which prevents the vehicle from moving when the systems are off.
However, the JETporter can be moved or towed by putting the transaxle into neutral. Standing on the cradle looking aft,
the shift knob is located on the right side of the transaxle. Look for a round stop collar fastened to a shaft sticking out the
side. When the knob is pushed all the way in, it is in low gear. Pull it out half way and the transaxle is in neutral. Pull it all
the way out for high gear.
WARNING
When the transmission is set to the Neutral position, the JETporter is free to roll and the brakes will be
ineffective. Use this position only for the purpose of slowly moving on a non-functioning JETporter. Wheel
chocks may be needed for stopping. Otherwise, be sure the transmission is firmly set to the full in position
(low speed) or the full out position (high speed).
8. Routinely inspect the spring on the hand winch for proper tension. Over time this spring may relax and not keep the dog
firmly in the sprocket which could allow the winch to unspool and let the aircraft roll off the front of the cradle and cause
damage to the aircraft or injury to people or objects nearby. Maintain a firm grip on the winch handle at all times and never
release the handle when the ratchet lever is in unlocked position with a load on the winch. Otherwise, the handle will spin
violently which could cause personal injury.
9. Use extreme caution while operating under adverse weather conditions. With snow or ice on the ramp traction can be
reduced significantly which could result in loss of control of tug and towed aircraft. Evaluate weather conditions to
determine if the aircraft can be moved safely. If in doubt do not attempt to move aircraft.
2.3
BATTERY SAFETY GUIDELINES
1. Always wear eye protection and rubber gloves when working with batteries.
2. Never wear jewelry, watches or rings while working around batteries.
3. When working on JETporter, always remove all power leads from batteries. The battery pack is capable of extremely high
currents and could cause serious damage or injury if short-circuited.
4. If battery acid is accidentally spilled on the skin, immediately flush the area with large amounts of water. Electrolyte
splashed in the eyes is extremely dangerous! If this should happen, force the eye open and flood it with cool, clean
water for approximately fifteen minutes. A doctor should be called immediately when the accident occurs.
5. If you have any doubts or questions, contact Tronair.
2.4
GROUND POWER UNIT SAFETY GUIDELINES
1.
Read 6.4 “Safety Precautions” in the battery care section of this manual.
2. Never guess when it comes to high current electrical equipment. Think about what you are doing before you do it.
3. Read and understand the cautionary statements in above section.
4. Always plug the black plug into the black socket. Reverse voltage can damage aircraft electrical systems.
5. Never over boost the electrical system by using a higher voltage than the rated voltage for the aircraft.
6. Pressing the Emergency Stop Button will disconnect the negative side of the GPU circuit. The Emergency Stop Button
must be in the pulled up position for the GPU to function.
2.5
SAFETY GUIDELINES
1. DO NOT USE THE PARKING BRAKE HAND BUTTON TO STOP THE JETPORTER WHILE MOVING. The Parking
Brake Hand Button allows faster setting of the parking brake for stopping and holding on inclines.
2. JETporter motion is normally stopped by returning the Joystick to the Neutral upright position. Moving the Joystick through
Neutral and into the opposite direction will result in the same braking effort as moving it to Neutral.
WARNING
Available stopping torque is reduced when the transmission is set for high gear. Stopping distances may
be longer when the transmission is set for high gear.
3. Accelerate slowly. Always operate the JETporter as smoothly as possible to prevent damage to the nose wheel strut of
the towed aircraft.
4. Do not leave JETporter unattended when children are present.
WARNING
Do not allow anyone to sit or ride on the diamond plate or front fenders of the JETporter while in motion.
5. The JETporter is equipped with a safety brake, which prevents the vehicle from moving when the systems are off.
However the JETporter can be moved or towed by putting the transmission in neutral.
WARNING
When the transmission is set to the Neutral position, the JETporter is free to roll and the brakes will be
ineffective. Use this position only for the purpose of slowly moving on a non-functioning JETporter. Wheel
chocks may be needed for stopping. Otherwise, be sure the transmission is firmly set to the full in position
(low speed) or the full out position (high speed).