Amm Maintenance; 21 5.3.1 Maintenance Intervals - Bosch BEA 460 Produktbeschreibung

en 28 | BEA 460 | Maintenance
5. Maintenance
5.1 Cleaning
The housing and the LCD are only to be cleaned using
a soft cloth and neutral cleaning agents. Do not use
abrasive cleaning agents and coarse workshop cloths.
5.2 Calibration
For applications demanding mandatory calibration,
annual calibration is essential. The German order on
calibration (part of the order on exhaust emission
tests) describes the checking of exhaust emission
analyzers as follows:
"The analyzers must be serviced under the conditions specified
in the usage instructions within the stipulated periods,
however at intervals of not more than 6 months. The work can
be performed by a maintenance service or by qualified staff
employed by the owner of the analyzer. A maintenance record is
to be kept and the analyzer accordingly labelled."
5.3

AMM maintenance

5.3.1 Maintenance intervals
i
Routine maintenance ensures constant readiness for
operation. The filter GF 1 is to be replaced at regular
intervals (Recommendation: Once a week given
normal usage).
In Germany, proof of annual and half-yearly maintenance
can be provided by way of the test record 1 689 980 302
and the sticker 1 689 980 194 can be used for labelling.
It is advisable to make use of the Bosch maintenance
booklet 1 689 980 241 for filing the records.
If they have to be opened (repair work), units are then
to be re-calibrated (refer also to bulletin on calibration
of exhaust gas analyzers for spark ignition engines).
Unit repairs (opening, adjustment, servicing etc.) are
only to be performed by authorized Service personnel.
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1 689 989 027 2009-03-26
Half-yearly maintenance
¶
Replace the filter GF1 (Fig. 5, Item 6) in the sampling
hose.
¶
Replace the inlet filter GF2 (Fig. 5, Item 3), refer to
Section 7.4.5.
¶
Check whether both PVC hoses are connected to the
gas outlets (Fig. 5, Items 7 and 11).
¶
Visually inspect the sampling probe (Fig. 5, Item 6).
¶
Check the sampling probe for leaks (refer to Section
7.3.2).
¶
Confirm the maintenance work performed (refer to
Bosch test system program description).
Annual maintenance
This work is to be performed by a qualified
maintenance service. It includes the half-yearly
maintenance and the following additional items:
¶
Check AMM measurement accuracy with a sample
gas.
¶
Replace the activated charcoal filter (Fig. 5, Item 1)
in the zero gas path.
¶
Replace the pump protection filters GF3, refer to
Section 7.3.5
Compliance with the specifications of the relevant
authorities must be ensured.
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Fig. 5: Back view of BEA 460
1 Activated charcoal filter
2 Filter GF3
3 Filter GF2
4 8 m exhaust gas sampling hose
5 O sensor (illustration may differ from original)
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6 Filter GF1
7 Gas and condensate outlet (transparent 140 cm PVC hose)
8 30 cm Viton hose (black)
9 Exhaust gas sampling probe
10 Plastic hose for leak test
11 Test gas outlet (transparent 140 cm PVC hose)
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Robert Bosch GmbH
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