Checking The High-Pressure Hose; Draining Dirty Oil In The Stowage Space Of The Work Area - Bosch EPS 708 Originalbetriebsanleitung

en 54 | EPS 708 | Maintenance
6.3

Checking the high-pressure hose

Check high-pressure hoses and replace immediately if
leaking or damaged.
High-pressure hoses (operating pressure greater than
6 Mpa) must be replaced after 3 years (see date of
manufacture on high-pressure hose), even if no safety-
relevant defects are evident.
6.4 Checking hoses
!
Damaged hoses must not be repaired.
Always handle 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 hose
R
Stiff union nuts or quick-release couplings
R
Deformed or damaged connection end of hose
(sealing taper, plug-in nipple, etc.)
R
Leakage at fitting
R
Corrosion at fitting if strength is reduced as a result
R
Service life exceeded (see sec. 6.3)
6.5 Changing calibrating oil,
cleaning the calibrating oil tank
!
Take care not to allow dirt into the calibrating oil or
let it mix with the lubricating oil of the common rail
pumps.
!
Dull, grayish calibrating oil is dirty and can damage
common rail pumps and calibrating nozzles.
The calibrating oil tank can be drained via the drain
cock in the tank using an external pump. Before filling
with new calibrating oil, clean and rinse the calibrating
oil tank. The empty calibrating oil tank has a capacity of
approx. 50 liters. Only use calibrating oil to ISO 4113.
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Permitted calibrating oil grades:
Oil grade
DIVINOL Calibration Fluid 2928V3
i
For disposal, see sec. 7 "Shutdown".
6.5.1 Changing the calibrating oil
1. Exit all open applications.
2. Shut down the PC via the Windows operating
system.
3. Switch off the EPS 708 via the master switch.
4. Take off the front right cover.
5. Remove the cap of the calibrating oil tank.
6. Using an external pump, pump the dirty calibrating
oil into a container
or
fit the drain hose (fig. 14, pos. 1) to the drain cock
in the calibrating oil tank (fig. 4, pos. 4).
7. Open the drain cock and drain calibrating oil into
a container.
8. Rinse the empty tank with calibrating oil to remove
dirt from the floor of the tank.
9. Close the drain cock and remove the drain hose.
10. Fill the tank with new calibrating oil up to the upper
notch in the dipstick (approx. 50 l).
 The calibrating oil is now changed.
11. Put on and secure the lid of the calibrating oil tank.
12. Insert the cover and secure.
"
The EPS is ready for operation once more.
6.5.2 Draining dirty oil in the stowage space
of the work area
The dirty oil in the test area (fig. 2) must be drained
weekly or as necessary. To do so, hold a suitable
container beneath the drain cock (fig. 4, pos. 7) and
drain dirty calibrating oil.
Manufacturer
Zeller+Gmelin
GmbH & Co. KG
Robert Bosch GmbH