Operating the frost protector
➤
Use the checklist when initially starting the frost protector.
Check See chapter Confirmed?
Check the level of antifreeze in the frost protector. 10.8.5
Close the tap on the frost protector. 8.5
Tab. 52 Low-temperature equipment checklist
Operating the coolant pre-heater:
The engine coolant can be pre-heated to improve cold-starting.
The connection for the mains supply is located on the machine's instrument panel.
Fig. 28 Coolant pre-heating
1 Instrument panel
2 Connection for the coolant pre-heater
3 Power cable
4 Coolant pre-heating
5 Engine block
1. DANGER!
Danger of fatal injury from electric shock!
Serious injury or death can result from a short-circuit in the electric coolant pre-heater.
➤
The power cable for the coolant pre-heater may only be plugged into an electrical socket
fitted with a protective earth.
➤ Have the coolant pre-heating and associated wiring checked according to the mainte‐
nance schedule.
2. Connect the coolant pre-heater to the user's power socket with the power cable supplied.
7 Initial Start-up
7.4 Low-temperature operation (winter)
62
Service manual Portable compressor
M122 No.: 9_6974 20 E
Option ba
Option bb
Option bb
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