Bosch ACS 753 Repair Instructions page 6

DO NOT USE COMPRESSED AIR TO PRESSURE TEST OR LEAK TEST THE MACHINE
OR VEHICLE AIR CONDITIONING SYSTEM. Mixtures of air and refrigerant can be
combustible at elevated pressures. These mixtures are potentially dangerous and may
result in fire or explosion causing personal injury and/or property damage.
HIGH VOLTAGE ELECTRICITY INSIDE THE MACHINE HAS A RISK OF ELECTRICAL
SHOCK. Exposure may cause personal injury. Disconnect the power before servicing the
machine.
NEVER LEAVE THE MACHINE LIVE IF AN IMMEDIATE USE IS NOT SCHEDULED.
Disconnect the electrical supply before a long period of inactivity or before internal
maintenance is performed. To ensure that unauthorized personnel cannot run the machine,
use the Lockout / Tag Out feature.
NOTE (R1234yf only): To minimize the risk of ignition, the unit software guided leak check is pe-
riodically performed otherwise the unit will lock. For same purpose, also hardware features such
as ventilation fan monitoring system, suitably located vents on cart bottom (R1234yf is heavier
than air) and sealed power switching circuits are present.
CAUTION: The machine is not intended to operate with oils classified as flammable
or hazardous according to EN 1272/2008 (CLP).
CAUTION : To prevent equipment damage,
TO PREVENT CROSS-CONTAMINATION, USE THIS MACHINE WITH R1234yf
(ACS 763, ACS 863) OR R134a (ACS 753) REFRIGERANT ONLY. The machine is
equipped with special connectors to recover, recycle, and recharge only R1234yf (ACS 763,
ACS 863) or R134a (ACS 753) refrigerant. Do not attempt to adapt the machine for another
refrigerant. Do not mix refrigerant types through a system or in the same container; mixing
of refrigerants will cause severe damage to the machine and the vehicle air conditioning
system.
Do not use refrigerants other than those indicated on the technical data plate. It is also
recommended to buy it from specialized companies that guarantee its good quality.
DO NOT USE THIS MACHINE OUTDOORS DURING RAIN OR HIGH HUMIDITY. Protect
the machine from conditions that may cause electrical failure or other hazards relating to
ambient interaction.
DO NOT USE THIS MACHINE IN DIRECT SUNLIGHT. Position the machine far from heat
sources, such as direct sunlight which can cause excessive temperatures. The use of this
machine under normal environmental conditions (10°C to 50°C) keeps pressures under
reasonable limits. Make sure the machine does not exceed the operating temperature
indicated on the technical data plate.
DO NOT USE THIS MACHINE IN AREAS WHERE THERE IS A RISK OF EXPLOSION.
Place the station on a flat surface and in sufficient lighting conditions; lock the front wheels
and do not subject them to vibration.
Further information regarding health and safety may be obtained from the refrigerant
manufacturer.
SP00D00609 2018-03-26
ACS 753, ACS 763, ACS 863 Service Manual
6
Robert Bosch GmbH