54
20901559_EN_RE_RZ_V7_230523
Cleaning and maintenance
7.1
7.1 Information on maintenance work
Information on maintenance work
Motor bearings have a typical durability of 40000 operating hours.
Motor capacitors have a typical durability in the range of 10000
to 40000 operating hours depending strongly on operation condi
‑
tions including ambient temperature, humidity or load.
WARNING
Overaged motor capacitors may get hot, melt or
emit a darting flame.
An overaged capacitor may get hot or even melt. Rarely
it may emit a darting flame which could be dangerous
for personnel and equipment in the vicinity.
>
Check the capacitors in the terminal box of the vac
‑
uum pump regularly.
>
Measure the capacity of the capacitors and estimate
their operating hours.
>
Replace overaged capacitors. The capacitors have to
be replaced by an qualified electrician.
Recommended maintenance activities
Maintenance intervals
Clean surfaces
if required
Clean fan grill
if required
`
Oil change
if required
`
Replace motor capacitors
after 10000 – 40000 operating hours or
in case of decreasing capacity
Check motor
capacitors
Summary of Contents for RE 2.5
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