46
FA ROTEX A1 BOe - 02/2014
9
x
Service and maintenance
Alternatively
, any residue can be removed with a high-pressure
cleaner.
For this:
Ɣ
Close combustion chamber without combustion chamber
insert.
Ɣ
Unscrew burner and burner flange (see chapter 7.4
"Removing/fitting the burner").
Ɣ
Clean combustion chamber through burner flange opening
with high pressure cleaner (fig. 9-15).
Closing the combustion chamber
The combustion chamber is closed again in reverse order to
"Opening the combustion chamber".
The following must be observed:
– Replace the combustion chamber inserts completely if they
were removed for cleaning of the combustion chamber.
Only on A1 BO 27-e and A1 BO 34-e:
– There must be no gap between the cylindrical and the
lower combustion chamber insert.
– When folding down the upper combustion chamber half
you must make sure that the upper (perforated) combus-
tion chamber ring does not tilt over.
– When
tightening
the four
allen bolts
,
start with the two
front bolts
.
Make sure that the upper combustion chamber does not tip
over and that it forms a tight seal.
9.2.6 Checking the oil filter and cleaning the oil pump
filter
Ɣ
Check oil filter for contamination, replace if needed.
The oil pump filter is located under the oil pump cover
(see fig. 7.4, chapter 7.3.3).
Ɣ
Release the bolt with the oil pump filter (fig. 7-4, pos. 8),
remove and clean.
Ɣ
Insert new or cleaned oil pump filter.
Ɣ
Check pump lid gasket and replace it if necessary.
9.2.7 Checking the burner
The scope of inspection includes:
Ɣ
Opening the combustion chamber.
Î
If there is damage around the combustion chamger, the
burner must be removed (see chapter 7.4).
Ɣ
Clean the burner surface (cloth, plastic brush).
Ɣ
Visual inspection of the fuel lines for leaks, clogging and
denting.
Ɣ
Check oil filter of the suction line, change the filter set if
necessary.
Ɣ
Clean the burner head at fuel exit in the area of baffle plate.
Ɣ
If necessary, replace faulty parts.
Ɣ
Close the combustion chamber.
Ɣ
Commission the burner and allow to run with the setting
"Emission Measurement" (see chapter 15.2) for approx.
10 mins.
Ɣ
Check combustion values:
– Flue gas temperature at measuring sockets of the flue gas
pipe. (Target value < 120 °C),
– O
2
or CO
2
content (see chapter 7.3),
– CO content (target value < 50 ppm).
– Soot number according to Bacharach-Scale < 1.
Î
If the combustion values do not fall within the target range,
the burner must be adjusted accordingly (see chapter 7.3)
Fig. 9-15 Clean combustion chamber with high pressure cleaner
To protect the oil pump, either insert the enclosed
micro-replacement filter insert
MC-7
, (
15 60 13
) for
short filter cups or the
MC-18
, (
15 60 14
) for long
filter cups in the ventilation oil filter. Only use filters of
maximum 25
μ
m.
For exact information regarding the checking and set-
ting of the burner, see 7.3.
For exact information regarding the assembly and dis-
assembly of the burner, see 7.4.
In the course of the maintenance activities, the
automatic firing unit CM165-R1 must also be rechecked
to see whether it attains the rated life cycle:
– 10 years or 250,000 burner starts,
We recommend, to enter all measured values and the
conducted work with the date and signature into the
enclosed operating handbook.
