KAESER M27, Operator'S Manual

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Starting the engine
1. Start the engine of the assisting vehicle and run at high speed.
2. Start the compressor engine.
Upon a successful start, run both engines run for approximately 10 - 15 minutes.
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 in particular, of the machine is sensitive to high voltages and could be
damaged 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 compressor engine as soon as the cables are disconnected could indicate ma‐
jor damage to the alternator or battery to be repaired by a specialized workshop.
7.4.2 Option ba
Starting up low-temperature equipment
➤ Ascertain which low temperature equipment is fitted to the machine.
Operating the coolant pre-heater
The engine coolant can be pre-heated to improve starting under cold conditions.
The connection for the power supply
2
is located on the rear of the machine (see illustration).
Fig. 28 Coolant pre-heating
1
Operating panel
2
Connection for the coolant pre-heater
3
Power cable
4
Motor block
5
Coolant pre-heating
7 Initial Start-up
7.4 Low-temperature operation (winter)
No.: 9_9548 05 USE
Operator Manual Screw Compressor
M27
79
Option bb