7 Servicing/Maintenance
44 of 70
Etachrom L
1212.8/19-EN
7.2.2 Inspection work
DANGER
Excessive temperatures caused by friction, impact or frictional sparks
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷
Regularly check the coupling guard, plastic components and other guards of
rotating parts for deformation and sufficient distance from rotating parts.
DANGER
Electrostatic charging due to insufficient potential equalisation
Explosion hazard!
▷
Make sure that the connection between pump and baseplate is electrically
conductive.
7.2.2.1 Checking the coupling
Check the flexible elements of the coupling. Replace the relevant parts in due time if
there is any sign of wear and check the alignment.
7.2.2.2 Checking the clearances
For checking the clearances remove the impeller, if required.
(
If the clearance is larger than permitted, fit a new casing wear ring 502.01 and/or
502.02 and/or 502.06 (WS35).
The clearances given refer to the diameter.
Table 14:
Clearances between impeller and casing [mm]
Size
Suction side
Pressure side
Nominal impeller diameter [mm]
125
160
200
250
25
✘
-
0,6
0,6
0,6
0,5
-
✘
-
-
0,5
0,5
32
✘
-
0,6
0,6
0,6
0,5
-
✘
-
-
0,5
0,5
40
✘
-
0,6
0,6
0,6
0,5
-
✘
-
0,5
0,5
0,5
50
✘
-
0,6
0,6
0,5
0,5
-
✘
-
0,5
0,5
0,5
65
✘
-
-
-
0,5
0,5
-
✘
-
-
0,5
0,5
80
✘
-
-
-
0,5
0,5
-
✘
-
-
0,5
0,5
Maximum permissible enlargement: 1.2 mm
Summary of Contents for Etachrom L
Page 1: ...Standardised Pump Etachrom L Installation Operating Manual...
Page 68: ......
Page 69: ......
