22 5.3.6 Checking The Display Stability - Bosch BEA 460 Produktbeschreibung

en 30 | BEA 460 | Maintenance
Replacing the filters GF2 and GF3
Detach the filter (Fig. 6, Item1) together with the
angular hose fittings (Fig. 6, Item 2) from the upper and
lower connection piece.
Detach both angular hose fittings from the filter by
twisting gently and attach them to a new filter.
Attach the new filter with the angular hose fittings to
the connection pieces; refer to the label on the back of
the unit for the installation position.
Affix the sticker 1 689 980 296 to each new GF3 filter.
The applicable date and the signature of the person
performing the work must be marked on the stickers.
The date provides a reference for the replacement
interval and the signature confirms authorized filter
replacement. Use a non water-soluble felt-tip pen for
labelling the sticker.
Datum/Date
Unterschrift/Sign
Fig. 7: Sticker 1 698 980 296
| |
1 689 989 027 2009-03-26
459558/24 Ha
5.3.6 Checking the display stability
Detach the exhaust gas sampling hose from the AMM at
the exhaust gas measurement inlet.
!
There must not be any engine exhaust gases,
gasoline or cleaning agent vapors in the atmosphere
in the vicinity of the ESA.
Call up the "Diagnosis / gas values" menu in the ESA
program (refer to ESA program description). Following
system setting (zero calibration and HC residue test),
the unit displays the current measured values.
Observe the display for approx. 2 minutes with regard
to limit values and stability.
Fluctuation error limits (noise):
Measured value
CO
CO
2
O
2
HC
The HC display must settle after approx. 2 minutes to a
value of less than 12 ppm.
5.3.7 O sensor
2
Over the course of time, the O
wear. The oxygen measurement zero point is constantly
monitored. In the event of deviation, the fault message
"
O2 sensor setting incorrect
message indicates the need for O
For details of O sensor installation and setting, refer to
2
the fitting instructions 1 689 978 178 or the program
description 1 689 979 659.
!
Use is only to be made of a genuine O
the designation BOSCH A7-11.5, CLASS R-17A BOS,
CLASS R-17A SIE or W79085-G4003-X (order number
1 687 224 727).
The O sensor contains alkalis.
2
Caution: Corrosive!
!
Old O sensors are classed as hazardous waste
2
and must be disposed of in accordance with
the applicable regulations. The disposal code is
16 05 02 (European waste catalog: EAK code). As an
alternative to the public disposal facilities available,
these components can also be sent for disposal to
the AAAA-DGP/LOG2 Repair Service.
Specification Tolerance
0 %vol ± 0.005 %vol
0 %vol ± 0.2 %vol
20.9 %vol ± 0.4 %vol
0 ppm ± 12 ppm
sensor is subject to
2
" appears. This
sensor replacement.
2
sensor with
2
Robert Bosch GmbH