Bosch Rexroth PRC 7000 Betriebsanleitung Seite 298

298 / 334 Bosch Rexroth AG
Dismantling and replacement
Block the unit-related connections for compressed air supply and, if
3.
necessary, the cooling water supply and discharge should this be
necessary manually. Make sure that inadvertent opening is avoided.
Then disconnect the existing water conduits.
Use suitable measuring equipment and an appropriate measuring
4.
method to ensure that the mains and transformer connections of the
respective unit are de-energized.
Take into consideration that internal voltages need at least 5 minu­
tes for discharge after switching the power supply off. Do not touch
the mains and transformer connection of the unit during this period of
time.
If possible, continue to use the AnyBus module in the new unit. A re­
configuration of the relevant interfaces is thus not necessary.
Make sure that all connections to the front side of the timer are
5.
marked clearly and then pull off the connections.
Loosen the connections for mains and transformer connections.
6.
Make sure that the unit cannot make uncontrolled movements after
7.
loosening of the retaining screws/quick-action clamps and then
loosen the retaining screws/quick-action clamps.
Remove the unit.
8.
For transport and storage, please take into account the information
provided in Section „Transport and storage" on page 249 and for dis­
posal the information provided in Section „Disposal" on page 261.
When dismantling the unit, make sure that all remaining connection
9.
cables are sufficiently insulated and protected against contact.
Dismantling has now been completed.
Additional steps if the dismantled unit is to be replaced:
Install the new unit (refer to Section „Assembly" from page 251).
10.
Carry out a commissioning procedure (refer to page et seq. 247).
11.
If necessary after commissioning, enter the necessary data into the
12.
weld timer again.
PRC7000 | R911172834 / 02