Gremo1050F4 Instruction manual
12 Other equipment and optional
12.1 Diesel heater Webasto Thermo 50/90
12
Other equipment and optional equipment
12.1
Diesel heater Webasto Thermo 50/90
12.1.1
General
Fig. 143
The heater is connected to the regular heating system of
the machine. A separate water pump circulates the coolant
through a heat exchanger where the water is heated and
then led to the cab and the engine. The cab is heated by
the regular heating fan of the machine. The heater works
in intervals with a thermostat which first raises the
temperature in the engine to approx. 40°C before the fan in
the cab starts.
NOTICE
Note that the heater causes a load on the batteries!
NOTICE
When the heater is used as a parking heater it will use
up part of the battery capacity. This happens especially
in cold weather and when the battery is already heavily
strained. Because of this, it is recommended to run the
engine for at least the same duration as the heater has
been active. Furthermore the battery should be checked
and charged if necessary.
Run the heater at least once per week, even during the
summer. This will prevent non-circulating fuel from
vapourising and leaving coatings which may cause
operating problems.
12.1.2
Operating problems
If the heater doesn’t start:
1. Check the fuses, see 9
Check also fuse F3 (heater fan, water valve). If this
fuse is broken, then the heater will still start and heat
the diesel engine, but there will be no hot air in the
operator’s cab.
2. Check the automatic overheating thermostat.
3. Check that cables and fuel hoses have not come loose.
4. Ensure that the battery has enough capacity.
5. Check the glow plug.
6. Contact your service dealer.
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