Crane operation
11.7 Heating and air-conditioning system
Operating manual GMK 6400 3 112 993 en 11 - 141
12.07.2013
11.7.4 Auxiliary air heater
You can use the auxiliary air heater to preheat the crane cab or provide addi-
tional heating.
H
The batteries will run down if you operate the auxiliary heater with the
engine switched off. You must recharge the batteries at shorter intervals if
you use the auxiliary heater frequently.
Switching on To switch the auxiliary heater on and off, you can:
– Switch the auxiliary heater on and off manually; the ignition must be
switched on for this
– Set an automatic heating start and heating period with the timer;
à Additional functions, p. 11 - 142
• Before switching on the heating system, check whether it is allowed to be
operated at the current site of the truck crane. Find out whether there are
any possible sources of danger that could result in an explosion
• Turn on the ignition; à Switching on the ignition, p. 10 - 4
• Press the (1) button once.
The auxiliary heater switches on automatically – the control field lights up.
s
G
Risk of explosion when operating the heating system
The heating system may not be operated:
– At service stations and tank farms
– At places where flammable gases or vapours can be found or formed
(e.g. at places where fuel is stored and in chemical factories)
– At places where explosive dust can be found or formed (e.g. coal dust,
wood dust and grain dust)
G
Risk of suffocation when operating the heating system
Do not operate the heating system or the heating system with the timer in
enclosed rooms (e.g. garages).
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