Replacing The High-Pressure Rail - Bosch EPS 708 Repair Instructions

en 70 | EPS 708 | Repair
!
When the lubricating oil supply is used for the first
1129 Lubricating oil
time, the message "
pressure deviation too great
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
1*
2* 3*
GN/YE*
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.
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6.33
" may be dis-
1. Turn off the EPS 708 at the master switch.
2. Secure the master switch so that it cannot be swit-
3. Unplug the mains plug or disconnect from mains
4. Remove all hoses and high-pressure hoses from the
5. Detach all connecting cables from the high-pressure
U2 V2
W2
U1 V1 W1
458859_9
Fig. 134: High-pressure rail
6. Detach the high-pressure rail (item 1) from the
7. Insert a new high-pressure rail in the retaining bra-
8. Connect all electrical cables to the high-pressure
i
!
9. Connect the hoses and high-pressure hose to the
10. Calibrate the high-pressure rail (see section 10.1).
"

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.
ched back on.
electricity.
high-pressure rail.
rail. Sever the cable ties for attaching the connecting
cable to the guard plate from the rail.
retaining bracket (item 2).
cket.
rail.
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.
high-pressure rail.
The high-pressure rail is now ready for operation.
Robert Bosch GmbH