ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08Robert Bosch GmbH
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The machine is equipped with the following protective devices:
• Over pressure valves.
• A maximum pressure switch stops the compressor when excessive pressure is sensed.
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Door switch on service rear door disconnects electrical power to the unit when opened.
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The machine includes parts subject to PED EU directive 2014/68/EU, Pressure Equipment
Directive. PED directive regulates all the pressurized part dening for them categories based on
volume-pressure ratio and based on uid refrigerant type. Those parts then have not to be anyhow
modied nor removed. Under the responsibility of the owner, the machine and parts falling in
the scope of PED shall be checked either during commissioning and periodically fullling local
country regulations and norms. Parts in the scope of PED are:
• Tank.
• Pressure relieve valve.
• High pressure switch.
• Recovery group.
• Piping.
Call Bosch service center to get technical specications for each part listed.
The unit should normally be moved on at 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 rm grip on the rear handle.
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