9.2 Checklist for inspection and maintenance
Notes on maintenance intervals
Depending on the process, the required maintenance intervals may be shorter than the ref-
erence values specified in the table.
● Consult with Pfeiffer Vacuum Service about shorter maintenance intervals for extreme
loads or for specific processes.
Yellow LED flashing: Checking performance data
The flashing yellow LED indicates that maintenance may be required. The wear and serv-
ice life of the tip seals basically depend on the application. The HiScroll remains fully func-
tional, even if there is a high level of wear to the tip seals. If the pumping capacity is no
longer adequate, we recommend carrying out maintenance level 1.
● Regularly observe the performance data of the scroll pump.
● To reset the message, press
and
for 5 s at the same time
After replacing the tip seals, they need to be run in for a certain period of time. Operate the
scroll pump for a while without a load in order to restore the performance data.
Maintenance level
We recommend that Pfeiffer Vacuum Service (PV) carry out maintenance work at level 3.
Pfeiffer Vacuum will be released from all warranty and liability claims if maintenance work is
not carried out properly. This also applies wherever parts other than original spare parts are
used.
You can carry out maintenance work at
Level 1
yourself.
Action
Inspection Maintenance lev-
el 1
Maintenance level 3
Required material
described in
OI
OI
SI
Interval
daily
as required
5 years or 40,000 oper-
ating hours
Inspection
● Visual and acoustic test
● Vacuum pump performance
test
● Equipment check for abra-
sion, discoloration and other
anomalies
● Creation of an action plan
■
Maintenance level 1
● Replacement of tip seal
● Replacement of valves
■
Tip seal maintenance set
Valve set
Maintenance level 3
● Replacement of all wear
parts
● Complete cleaning
■ (PV)
Maintenance set level 3
Tbl. 20:
Maintenance intervals
9.3 Replacing the non-return valve on the exhaust side
Prerequisites
● Vacuum pump switched off
● Vacuum pump is vented to atmospheric pressure on the suction side
● Vacuum pump cooled
Maintenance
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Summary of Contents for HISCROLL 12
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