1 689 979 674
2013-12-23
|
Robert Bosch GmbH
en
Maintenance | KMA 802/822 | 37
7. Maintenance
7.1
Maintenance
The EPS, like any industrial device, requires proper
maintenance at regular intervals.
The maintenance intervals refer to the operation of the
EPS in vehicle service canters for 8 hours per day. Re-
duce the intervals accordingly if the operating time is
extended.
We recommend portable test set 0 986 614 000 (availa-
ble from AA/SWS1) for performing maintenance work.
This contains all the calibrated measuring instruments
and accessories required for maintenance.
Customer service also uses flow-rate standards when
implementing the test service (checking the measuring
accuracy).
7.2
Maintenance intervals
Maintenance work
1
*)
2
*)
3
*)
4
*)
Check and, if required, adjust the
nozzle opening pressure
according to regulations.
Before doing so, check the pressure gage on the nozzle tester.
x
x
Pressure supply lines:
check that sealing cones and bores are in perfect condition;
if required replace with new pressure lines.
x
Interchange the
nozzle holders
and
pressure lines
and compare their respective flow rates.
The same delivery rates must be measured.
x
Replace
pressure joint
with rod filter or sieve filter.
x
Measuring device
(KMA 802)
for any leakages, and if found,
rectify them.
x
Measuring device
(KMA 802): check for measuring precision.
x
Volume meters:
perform flow measurement on even and odd ducts in succession and compa-
re the delivery rates with each other:
The same delivery rates must be measured.
x
Exchange
the inlet union screw
with the
copper gaskets.
Oil the copper gaskets! Tightening torque 30 +3 (Nm)
(outlet damping unit on KMA and KMM 60 S3 /80 S3 and upgrade kits)
x
Replace complete
hose lines
.
x
*)
Maintenance intervals
1 weekly
2 After testing 200 injection pumps, at the latest after 2 months
3 During a main inspection or, if required, during the test service
4 After 4 years