NoteAction
Recommended tightening torques are
specified in section Tightening torque on
page 229.
Check that the bolts are fastened.2
Retighten if necessary.Check that all connections are correctly
made and that there are no leaks.
CAUTION
Do not tighten the brass couplings for water
and air with excessive force.
3
Tightening torque, brass couplings 1/2":
31 Nm
Tightening torque, brass couplings 3/8":
17 Nm
Inspection, air supply circuit
The procedure below describes how to inspect the air supply circuit.
NoteAction
If there is a lot of water in the filter recept-
acle, this is a sign that the supplied air
consist of too much water.
Check if there is water in the filter recept-
acle.
Normally the filter receptacle is drained
automatically in case of a fall of air pressure.
If there is no fall of pressure in the air sys-
tem, there is an automatic draining of the
system, when the water level reaches a
certain level.
1
If this is the case, steps must be taken to
correct this problem!
Drain the air filter receptacle manually by
pressing a small pin at the bottom of the air
filter unit.
2
Retighten if necessary!Make a check that there is no leakage.3
If needed replace the air filter.Make a check of the condition of the air filter.4
Normally the filter should be replaced
after one year of use.
Inspection, water in and water return circuits
The procedure below describes how to inspect the water in and water return circuits.
NoteAction
Open the hand operated ball valve for water
inlet.
1
Open the water return valve on the water in
circuit.
2
Close the hand operated ball valve for water
outlet.
3
Retighten if necessary!While the system is under pressure, check
if there are any leaks.
4
Reset the system.5
Product manual - DressPack/SpotPack IRB 8700 147
3HAC055802-001 Revision: B
© Copyright 2015-2017 ABB. All rights reserved.
3 Maintenance
3.3.3 Preventive inspection of Water and air unit
Continued
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