RDLO
Page 18 of 24
7.6 Routine Servicing and Inspection Intervals
Interval Number of
personnel
required
Time
(hours)
Servicing work
Daily 1 1/10
- Check mechanical seal for leakage
or leakage rate of gland packing
Weekly 1 1/4
- Check pump operation (suction
pressure, discharge head, bearing
temperature, noises and vibrations)
Monthly
1
1
1/4
1/4
- Check torsional clearance of the
coupling (see operating instructions
of the coupling in section 9.3)
- Switch to stand-by pump, if any, or
carry out a test run (for 5 minutes)
Every 4400 (radial ball
bearings)/
2 200 (radial roll
bearings
operating hours
11/4
- Re-lubricate grease-lubricated
rolling element bearings (re-
lubrication quantity, see technical
data sheets of pump in section 9.2)
Every 7 500
operating hours
11/4
- Oil-lubricated rolling element
bearings, see section 7.2.3.2
Every 4 years or if
discharge head
decreases
26
- General inspection and overhaul of
pump in accordance with the
operating instructions
Check and replace, if required:
- wear parts such as bearings,
casing wear rings, impeller wear
rings, shaft sleeves
- impeller and shaft
- seal elements
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