Starting the engine
1. Start the engine of the assisting vehicle and run at high speed.
2. Start the engine of the machine.
Let the two engines run for approximately 10-15 minutes after the successful start.
This is important, in particular for fully discharged batteries. They will pick up little current only
in the beginning and have a high internal resistance. Any voltage peaks occurring in the en‐
gine generator in this state can be attenuated only by the battery of the assisting vehicle. The
engine electronics of the machine, in particular, is sensitive to high voltages and could be da‐
maged easily.
Disconnecting the battery jumper cables
1. Stop the engine of the assisting vehicle.
2. Disconnect the jumper cables in the reverse order, first negative (-) then positive (+).
3. Place the pole caps.
4. Close the maintenance panels and/or bonnet.
A stop of the machine’s engine as soon as the cables are disconnected could indicate major
damage (e.g. to the engine generator or battery) which must repaired by a specialized work‐
shop.
7
Initial Start-up
7.4
Low-temperature operation
62
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M55 PE SIGMA CONTROL SMART pV
No.: 902366 10 USE