Download GPU (Ground Power Unit) Instruction Manual

GPU (Ground Power Unit) Instruction Manual
Before using GPU to work on aircrafts:


1.
2.
3.
4.
Turn on the GPU by pressing the power button.
If GPU is in any of the following status, DO NOT use it. Please charge it
immediately.
The voltage is lower than 25V
The temperature is higher than 55°C, please DO NOT charge it until the
temperature goes down lower than 45°C
The LED lights show red
The buzzer is on
When using the GPU to charge aircrafts:

Please leave the thermometer and the voltage meter on and keep tracking the
voltage and temperature changes.
 Reset both meters every time by pressing the power button on and off when you
want to use it.
 After connecting the GPU and the aircraft, when the jet or turbo is turned on,
there is a huge voltage drop but the voltage goes back shortly.
 If GPU is in any of the following status, STOP using it. Please charge it
immediately.
1. The voltage is lower than 25V
2. The temperature is higher than 55°C, please DO NOT charge it until the
temperature goes down lower than 45°C
3. The LED lights show red
4. The buzzer is on
Warning: Except air condition charging and jet starting, GPU is able to work in lower
10Amp while being charged.
When charging the GPU:


Same charger for T1.5/T2 tugs.
When attach the charger, if both indicators on the case are red, GPU is being
charged. When both turn green (either blink or solid), the charging is done.
Idle time:
 Please keep the meters off.
 Please keep the plug cap on for all the time.
Warning: GPU is a water resist but not water proof product, so please DO NOT
merge it under water and dry it if the surface is wet.