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WIKA operating instruction, model CPP120-X
EN
08/2020 EN/DE
8. Maintenance, corrective maintenance and cleaning
8.2.5 Volume adjuster
The volume adjuster should not be dismantled due to the complexity of the internal seals
arrangement unless performed by an experienced technician as special tools are needed
for assembly/re-assembly. WIKA can re-new seals/clean if required.
For contact details, please see chapter 1 "General information" or the back
page of the operating instructions.
8.2.6 Replace sealing of system pressure gauge
CAUTION!
Damage to the system pressure gauge
Incorrect replacing the system pressure gauge can result in damaging the
pressure gauge.
▶
Only use original parts (see chapter 11 "Accessories").
▶
Ensure that the measuring range of the pressure gauge covers the
maximum pressure range of 120 bar [1,740 psi].
▶
Ensure that the process connection of the pressure gauge fits correctly.
⇒
No excess force is necessary!
▶
Only use suitable open-end wrench between the process connection and
the case of the pressure gauge and the union nut of the CPP120-X.
1. Place a suitable open-end wrench between the process connection and the case of
the pressure gauge and on the union nut to loose the system pressure gauge
6
from
the comparison test pump.
2. Replace the sealing ring USIT at the bottom of the union nut.
3. Mount system pressure gauge
6
correctly.
