Bosch ACS 753 Repair Instructions page 7

ACS 753, ACS 763, ACS 863 Service Manual
Protective devices
The machine is equipped with the following protective devices:
• Over pressure valves.
• A maximum pressure switch stops the compressor when excessive pressure is sensed.
WARNING: Tampering with these protective devices could result in serious injury.
WARNING: Do not modify the pressure relief valve or change the control system
settings. Using the machine in a manner for which it was not designed will compromise
the machine and nullify the protections provided.
CAUTION: Check always the pressure gauges values to ensure that pressures are
maintained within the limits specified in the "Unit specifications" section.
Door switch
Door switch on service rear door disconnects electrical power to the unit when opened.
WARNING: Do not tamper the interlock switch. During normal operation, the rear
service door must always be closed and the above panel in place.
Refrigerant Tank Test
Official records and recurring tests necessary for pressurized instruments are governed by laws
and / or national regulations depending on the country where the refrigerant tank is used. The
system manager is responsible for respect of laws, regulations, and technical rules. During nor-
mal service, refrigerant tanks do not need maintenance. Refer to the Maintenance section of this
manual for more information.
Machine handling
The unit should normally be moved on flat surfaces with a maximum slope of 15 ° and on the four
wheels, avoiding excessive shaking. When stopped then the brake on the front wheels must be
inserted. On slightly irregular surfaces, the unit can be moved by keeping it slightly inclined and
grounded on the two rear wheels by making sure to have a firm grip on the rear handle.
CAUTION: Although heavier components of the unit are installed on the bottom of
the unit in order to lower as much as possible the center of gravity, it's however not
completely removed the risk of overturning.
Robert Bosch GmbH
7
SP00D00609 2018-03-26