Maintenance; Maintenance Intervals; Check Exhaust Gas Sampling Hoses; Replacing The High-Pressure Hose - Bosch 1 687 010 490 Manual Original

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26 | 1 687 010 490 | Maintenance

6. Maintenance
6.1

Maintenance intervals

Maintenance task
Check hose lines
(See sec. 6.2)
Change filter element for pump return (see
sec. 6.4)
To be performed during the main inspection by test service/cus-
*)
tomer service
6.2

Check exhaust gas sampling hoses

Always handle exhaust gas sampling hoses (high-
pressure and low-pressure hoses) with care and check
before use. Replace hoses if inspection reveals the
following damage:
R
Cracks, brittle areas, abrasion or blistering of the
hose jacket
R
Kinked exhaust gas sampling hose
R
Stiff union nuts or quick-release couplings
R
Deformed or damaged connection end of exhaust
gas sampling hose (sealing cone, plug-in nipple,
etc.)
R
Leakage at hose fitting
R
Corrosion at hose fitting if strength is reduced as a
result
R
Service life exceeded (see section 6.3)
!
Damaged hose lines must not be repaired.
6.3

Replacing the high-pressure hose

Replace high-pressure hoses (operating pressure
greater than 60 bar) after 3 years (see date of
|
1 689 989 214 2020-02-24
manufacture on high-pressure hose) even if there are
no apparent defects of relevance to safety.
6.4 Change filter element for pump
return
X X –
– – X
5
Fig. 6:

Change filter element for pump return

1 Filter for pump return
2 Filter cover
3 Filter element
4 Filter housing
5 Wing nut
i
Make sure that the hydraulics area is always closed
with the cover following each filter replacement.
1. On the front of the EPS 815, take off the lower left
cover.
2. Remove wing nut (Fig. 6; item 5).
3. Place the container in front of the EPS 815, so that
the test oil in the filter does not get onto the floor.
4. Pull the mounting bracket with filter element out of
the hydraulic chamber.
5. Unscrew the filter housing (Fig. 6, item 4) on the
filter cover (Fig. 6, item 2).
6. Unscrew the filter element (Fig. 6, item 3) from the
filter cover.
7. Remove the filter element and dispose of it.
8. Insert a new filter element and screw into place.
9. Screw the filter housing onto the filter cover.
"
The filter element has been replaced.
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Robert Bosch GmbH