W3T331759 / WT.050.585.003.UE.IM.1014
50
MICRO/2000® AND DEOX/2000® MODULE
The sample tube unit (B) fits into the large groove (E) on the tube retainer
(F) and the large groove (I) on the rollers (G).
Guide the (new) tube unit through the small (D) or large (E) groove in the
lower end of the tube retainer (F) and slide the unit up through the groove
until the lower tube stop (J) is against the outer surface of the tube retainer (F).
4.
Lay the tube unit (A or B) over the pump rollers (G) in the small (H)
or large (I) groove, toward the front of the pump rollers. If two reagent
tube units (C) are installed, ensure that the tubes lay side by side and
do not cross each other when placed over the rollers (G).
NOTE:
If the pump is operated with the reagent tube units crossed, the
tube units may be damaged.
5. Stretch the tubing slightly and guide it through the small (D) or large
(E groove in the upper end of the tube retainer (F), with the upper tube
stop (K) above the top surface of the upper end of the tube retainer
(F). When tension on the tubing is released, the tube stops should be
against the outside surfaces of tube retainer.
6. Check that the tube units (B or C) are in their proper small (H) or large
(I) groove in the roller (G). Check that the reagent tubes do not cross.
7. Replace the occlusion ring, so that the larger inside radius (in which the
sample tubing (B) rides) is facing away from the operator. Locate and
start the lower mounting bolt before attempting to squeeze the occlusion
ring against the tubing. Then secure the second mounting bolt.
The tubing exerts side pressure on the retaining bolts, causing some tendency
for cross-threading of the bolts as they are reinstalled. Do not force the bolts.
If they do not turn smoothly, remove them and install them again.
5.2.5 Pump bearing replacement
1. Remove the wetside panel from the mounting enclosure.
2. Remove the pump occlusion ring, tube units, rotor body (with rollers),
and thrust washer from the front of the wetside panel.
3. Remove the pump motor from the rear of the wetside panel. The
pump mounting screws are on the face of the panel.
4. Drive the bearing out of the front of the casting using the square
end of a rod that is approximately ½-inch in diameter by 4 inches
long. (A socket wrench socket on an extension will work.) Use
care not to scar the bore in which the bearing is pressed.
Summary of Contents for WALLACE & TIERNAN DEOX/2000
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