7 Servicing/Maintenance
61 of 78
Etanorm-R
1222.8/13-EN
3. Carefully insert the stationary ring of the mechanical seal or the stationary ring
holder of mechanical seal 476 into seal cover 471.01.
Make sure to apply pressure evenly.
4. Bolt seal cover 471.01 to casing cover 161.
CAUTION
Elastomers in contact with oil/grease
Shaft seal failure!
▷
Use water as assembly lubricant.
▷
Never use oil or grease as assembly lubricant.
5. Place casing cover 161 into the locating fit of bearing bracket 330.
6. Fit and tighten nuts 920.4, if any.
7. Clean shaft sleeve 523, and touch up any score marks or scratches with a
polishing cloth, if necessary.
If score marks or scratches are still visible, fit new shaft sleeve 523.
NOTE
To reduce friction forces when assembling the seal, wet the shaft sleeve and the
location of the stationary ring with water.
8. Position the rotating part of the mechanical seal (primary ring) onto shaft sleeve
523, observing dimension B, and fasten.
9. Push shaft sleeve 523 with new gasket 400.04 onto shaft 210.
7.5.3.3 Packing the gland
l
a)
b)
d
i
902.02
920.02
550.02
902.02
920.02
550.02
400.04
400.04
524
524
d
a
458.01
452.01
452.01
454.01
454.01
461.01
461.01
456.01
456.01
d
i
d
a
Fig. 26:
Packing the gland a) with lantern ring and b) without lantern ring
Table 23:
Gland packing chamber
Shaft unit
Gland packing chamber
Packing cross-
section
Packing rings
17)
Ø d
i
Ø d
a
l
65
80
105
80
□
12 x 302
4 packing rings,
1 lantern ring
or
6 packing rings
17
For operation with positive suction head and suction pressure > 0.5 bar, the lantern ring is replaced by 2
additional packing rings.
Summary of Contents for Etanorm-R
Page 1: ...Standardised Pump Etanorm R Installation Operating Manual...
Page 77: ......
