1. Keep the frost protector shut-off valve permanently closed (position 0).
2.
Close the access door.
Result The machine is ready for winter operation.
Further information See chapter 10.8.5 for filling the frost protector with antifreeze.
Machine operation without activated frost protector:
Operation at temperatures above 0 °C (summer operation).
1. Leave the frost protector shut-off valve open permanently (position I).
2. Close the access door.
8.5.2 Option bb
Coolant pre-heating
➤ Start the coolant pre-heating as described in chapter 7.4.2.
8.6 Option oa
Operating the battery isolating switch
Fig. 34 Battery isolating switch
1 «Battery isolating switch»
I – on
0 – off
➤ Open the left-hand door.
Start the machine
1.
Switch the «battery isolating switch» on.
The battery is now connected to the machine's electrical system. The machine can now be
started.
2. Close the access door.
Shutting down the machine:
1. Switch the «battery isolating switch» to the 'off' position
The battery is disconnected from the machine's electrical system.
2. Close the access door.
8 Operation
8.6 Operating the battery isolating switch
70
Service manual Portable compressor
M122 No.: 9_6974 20 E
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