ABB DressPack IRB6650S Product Manual page 336

4 Repair
4.4.1 Replacement of Air supply circuit
Continued
Removal
The procedure below details how to remove the Air supply circuit. It does not deal
with details specific to each version, such as article numbers, connector types etc.
For details see the Spare parts section.
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336
Action
CAUTION
The system contains compressed air! Observe the
safety information in section
pneumatic/hydraulic systems on page
Turn off the hand operated air valve on the air sup-
ply circuit.
With the option Electrical proportional valve:
In addition to turning off the hand operated valve
on the air supply circuit (see above), the output
pressure of the Electrical Proportional valve must
be reduced separately either by changing the refer-
ence signal to zero first and/or exhausting it with a
separate valve. It is also possible to exhaust air
pressure by activating attached units to consume
any residual pressure.
Turn off the shop floor air supply to the Water and
Air unit.
Remove the hose of the compressed air supply of
the workshop.
Remove the Proc 1 hose from the air supply unit.
Remove the Proc 4 hose from the air supply unit.
Disconnect the pressure switch tube from the Air
circuit Cross interface.
Disconnect the pressure switch connector on the
split box, according to the circuit diagram.
Disconnect the pressure switch from the mounting
plate.
If the option proportional valve is selected, discon-
nect the proportional valve connectors on the split
box according to the circuit diagram.
Unscrew the four attachment screws holding the
air supply circuit and remove it.
© Copyright 2004-2018 ABB. All rights reserved.
Note
Safety risks related to
28.
The air hoses on the robot will be
decompressed.
Reducing the pressure of the
Electrical Proportional valve by
changing the reference signal to
zero, must be done before the air
supply is turned off since the
power supply to the Electrical
proportional valve is turned off
automatically at insufficient air
pressure.
Only if the option Proportional
valve has been selected.
Product manual - DressPack/SpotPack IRB 6650S
Note
3HAC055424-001 Revision: C