▪
Monitor the correct functioning of any auxiliary connections.
▪
Monitor the stand-by pump.
To make sure that stand-by pumps remain ready for instant start-up, start up
stand-by pumps regularly between once a month and once every three months
for approximately five minutes
7.2.2 Inspection work
7.2.2.1 Checking the clearance gaps
Fig. 18: Clearance gaps
Table 13: Clearance gaps
S
1
[mm]
S
2
[mm]
S
3
[mm]
S
4
[mm]
l
1
[mm]
l
2
[mm]
Material
G, S
0.15... 0.45
0.15... 0.45
--
--
--
--
C
0.25... 0.75
0.25... 0.75
--
--
--
--
Motor (with ceramic bearings)
DS 90
--
--
0.02... 0.038
0.02... 0.038
22
-0.05
5.65
DS 112
--
--
0.03... 0.048
0.02... 0.038
32
-0.05
5.15
DS 132
--
--
0.03... 0.048
0.02... 0.038
32
-0.05
5.15
✓
The pump set has been disconnected from the power supply in the control
cabinet or terminal box.
✓
The pump and bearings have been dismantled.
Steps (
1. Measure the clearance gaps and check them against the table.
2. If the clearance gaps are too large, replace the components with original spare
parts.
7 Servicing/Maintenance
36 of 60
Etaseco/Etaseco I
Summary of Contents for Etaseco C
Page 59: ......
