51
W3T331759 / WT.050.585.003.UE.IM.1014
MICRO/2000® AND DEOX/2000® MODULE
5.
Tap in the new bearing until it is flush with the end of the bearing
support. Place the long side of a flat bladed screwdriver over the
bearing face and tap with a hammer. Make sure the new bearing
is square to the bearing support bore.
5.2.6 Impeller shaft seal replacement
5.2.6.1 Removal of the Impeller Shaft Seal
1.
Disconnect power to the wetside of the analyser.
2.
Remove the probe from the cell body. Make sure the probe electrodes
are not scratched or damaged. Lay the probe on its side so that the
electrodes do not contact any surface, but in a position so that the
electrolyte does not leak from reservoir fill hole.
3.
Remove the cell body retaining screws and remove the cell body.
When removing the cell body take notice of the O-ring that seals
the cell body against the seal adapter. This O-ring may cling to the
cell body and then fall off.
4.
Use a 3/32-inch Allen wrench to loosen the set screw holding the impeller
on the shaft. This set screw leaves a noticeable mark on the shaft. If the
shaft is not replaced, reinstall the impeller in the same position.
5.
Slide the grit guard off the shaft.
6.
Slide the seal adapter, with the seal and impeller shaft bearing,off
the shaft.
7.
Using a pair of needle nose pliers, grab the center of the seal
andremove it from the front of the adapter.
8.
Using a nut driver or small socket and extension, press the impeller
shaft bearing out of the seal adapter from the front.
9.
Rinse the grit from the cell body, cell body sealing O-ring, impeller,
and seal adapter. Wipe the sealing surfaces and the shaft (gently)
with a paper towel to remove all grit and residue.
10. Check the shaft for signs of unusual wear, which indicates that it needs
replacement. Refer to Impeller Shaft Replacement instructions.
5.2.6.2 Installation of shaft seal
1.
If not already done while removing old shaft seal, rinse grit from
the cell body, cell body sealing O-ring, impeller, and seal adapter.
Wipe the sealing surfaces and the shaft (gently) with a paper towel
to remove all grit and residue.
Содержание WALLACE & TIERNAN DEOX/2000
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