Driving
5.6 Heating and air-conditioning system
5 - 70 3 302 633 en Operating Instructions GMK5250L
27.09.2017
Switching on the
auxiliary heater
• Check whether the auxiliary heater is allowed to be operated at the cur-
rent site of the truck crane before switching it on. Find out whether there
are any possible sources of danger that could result in an explosion.
• Turn the switch (1) to the required temperature.
If the switch (1) is turned as far as possible (A) (
cold), the auxiliary heater is
not switched on.
H
This section describes how to switch on manually. The auxiliary heater can
also be switched on automatically;
à Saving automatic heating start,
p. 5 - 72.
• Switch on the ignition; à Switch on the ignition, p. 4 - 11.
• Press the button (1) once.
The auxiliary heater switches itself on and the insert lights up.
The auxiliary heater only supports the heating capacity of the standard heat-
ing system as long as the engine is cold. If the engine is warm, the heater is
switched off. However, the pump for the auxiliary heater continues to run
until you switch the auxiliary heater off.
H
Always switch the auxiliary heater off if you switch off the truck crane whilst
the battery master switch is switched on. In this way, you prevent the auxil-
iary heater from restarting and the batteries from running down after the
engine has cooled down.
G
Risk of explosion when operating the auxiliary heater!
The auxiliary heater is not allowed to 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. carbon dust,
wood dust and grain dust).
G
Danger of suffocation when operating the auxiliary heater!
Do not operate the auxiliary heater in closed spaces (e.g. a garage).
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