Spheros Thermo S 160, Workshop Manual

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Thermo S 160/230/300 g n i c i v r e S 7 0 0 4 / 0 5 3 /
701
7 Servicing
7.1 General
The general safety regulations (see 1.5.2) must be
observed.
7.1.1 Heater servicing
Only briefed and/or personnel trained by Spheros
may perform work on the heater.
For risk of overheating, the battery main current may not be
disconnected, while the heater is operating or in run-down.
Make sure that the circulating pump is running while the
heater is switched on for tests/inspections.
7.2 Servicing
In order to ensure long-term functional reliability, the
following maintenance activities should be performed on
the heater.
Mandatory maintenance:
t Fuel pump and fuel lines must be immediately
replaced when leaking, otherwise every 5 years.
If bio diesel or FAME is used, the fuel pump and fuel lines
must be replaced according to the latest technical
information.
You can find the latest overview on the Spheros
homepage under Service / Technical Documents.
Recommended maintenance:
t In order to prevent malfunctions, the fuel filter and/or
strainer as well as the fuel pump filter (screen) must
be replaced at least once a year, in case of heavily
contaminated fuel even more often.
t
Yearly visual inspection of the fuel pump, fuel and
coolant lines for leakage.
t
Mandatory is:
Yearly atomizer nozzle replacement.
The atomizer nozzle is a consumable (not covered by
warranty).
t Yearly visual inspection of inspection glass and flame
detector glass body, clean as needed.
t Yearly visual inspection of the combustion chamber
and heat exchanger interior for contamination and
soot, clean as needed.
t
Inspection of combustion air intake openings and
exhaust port for contamination. Clean as needed.
t
Outside the heating period, the heater should be
operated every 4 weeks for 10 min with the heater set
to "warm" and cold vehicle engine.
t
The heater should be inspected in periodic time
intervals, latest at the beg inning of the heating period
by a Spheros Service Center.
NOTE