Bosch EPS 708 - Replacing the High-Pressure Rail

1 689 975 233 2018-05-08| Robert Bosch GmbH
70 | EPS 708 | Repairen
! When the lubricating oil supply is used for the first
time, the message "1129 Lubricating oil
pressure deviation too great" may be dis-
played on the monitor. Ignore this message
with <F12>. The message is repeated until the lub-
ricating oil supply is completely bled (duration ap-
prox. 15 minutes). If the message persists, the cause
may be a low quantity of lubricating oil or incorrect
direction of rotation of the three-phase motor (see
direction of rotation arrow on the three-phase motor
of the lubricating oil supply).
7. Remove the cover of the terminal box of the three-
phase motor.
8. Pull the connecting cable through the cable gland.
U2
V2
W2
U1 V1 W1
U2
V2
W2
U1 V1 W1
3*2*
1*
GN/YE*
458859_9
Fig. 133: Terminal diagram
1*, 2*, 3*, GN/YE* are wire designations
9. Connect the cable (see Fig. 133).
10. Tighten the cable gland.
11. Fit the lid of the motor terminal box.
6.33 Replacing the high-pressure rail
WARNING - Risk of burns from hot surfaces
on the high-pressure rail!
There is a risk of getting burned when remo-
ving and installing the high-pressure rail.
¶ Always allow the high-pressure rail to cool
down.
¶ Always wear protective gloves.
1. Turn off the EPS 708 at the master switch.
2. Secure the master switch so that it cannot be swit-
ched back on.
3. Unplug the mains plug or disconnect from mains
electricity.
4. Remove all hoses and high-pressure hoses from the
high-pressure rail.
5. Detach all connecting cables from the high-pressure
rail. Sever the cable ties for attaching the connecting
cable to the guard plate from the rail.
Fig. 134: High-pressure rail
6. Detach the high-pressure rail (item 1) from the
retaining bracket (item 2).
7. Insert a new high-pressure rail in the retaining bra-
cket.
8. Connect all electrical cables to the high-pressure
rail.
i When connecting the pressure control valves, make
sure that connector 1 is connected to valve 1, con-
nector 2 to valve 2 and connector 3 to valve 3.
! When plugging in, make sure that all plugs are pro-
perly engaged.
9. Connect the hoses and high-pressure hose to the
high-pressure rail.
10. Calibrate the high-pressure rail (see section 10.1).
" The high-pressure rail is now ready for operation.