Sulzer J 205, Руководство по ремонту

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9.8 Impeller, diffuser & wear ring
(Figure 37, 38)
Clean the shaft end. Mount the impeller on the shaft se-
cured by the key, impeller washer and impeller screw.
m
CAUTION! Use gloves when mounting im-
peller, impellers may have sharp ends.
Check: The back side of the impeller should run free
from the wear plate with a clearance of 0.5-1.0 mm
(0.02”-0.04”).
Adjust the clearance with shims between impeller and
shaft / shaft sleeve if necessary.
Mount the diffuser and tighten the nuts to J 205=
45 Nm, J 405=140 Nm, J 604=273 Nm. No adjust -
ments or distance has to be considered when diffuser is
mounted.
Mount the wear ring on the stud bolts and adjust it.
The wear ring has a contra nut on the back side which
eases the possibility to adjust the wear ring exact and
close to the impeller
Check: The impeller should run free with a clearance of
0.1-0.3 mm (0.004”-0.012”).
9.9 Leakage test of mechanical seals
A leakage test of the mechanical seal and the oil
chamber may be performed. Mount a pressure gauge
in one of the oil plug holes. Compress air into the oil
chamber of max 0.15 - 0.20 bar. The pressure gauge
must be equipped with a closing valve. Close the valve
and check that the compressed air of 0.15 - 0.20 bar is
maintained in the oil chamber.
9.10 Refilling of oil
Put the pump in a horizontal position to fill new oil. Se -
cure the pump by the handle/eye bolts.
Make sure that the oil plug on the contra side from fill -
ing is mounted.
Oil type:
Paraffin oil (white oil) with viscosity 10 - 15 cSt, e.g. BP
Enerpar M 002 or equivalent.
Correct quantities:
J 205 2.5 litres 0.66 US gallon
J 405 3.0 litres 0.80 US gallon
J 604 6.2 litres 1.60 US gallon
Tighten inner oil plug with a new o-ring.
Figure 37: Mounting of impeller, diffuser and wear ring
0.5 - 1.0 mm
0.1 - 0.3 mm
Figure 38: Clearance measure
Figure 39: Oil and motor inspection plug (J 205)