Eagle Microsystems RA1000 - Manual (Page 10)

10
ANALYZER. WHEN THIS ASSEMBLY IS WITHDRAWN, THESE
SPHERES WILL DROP OUT.
1. Refer to OPERATION, Section B and proceed with Steps 1
through 7. Remove the adapter and all reagent.
2. Disconnect the wire from the gold electrode assembly.
3. While holding a bucket under the analyzer, unscrew the gold
electrode by hand. As the assembly is withdrawn, the spheres
will begin dropping out. Hold the bucket below until all the
spheres are removed. Remove large o-ring on the electrode
assembly.
4. Inspect the condition of the gold electrode. Clean and polish with
water and clean cloth. If electrode is damaged, replace.
5. Place large o-ring in groove on new electrode assembly and
screw the assembly into the bottom body, by hand, until snug.
6. Reconnect wire to the gold electrode assembly.
7. Remove the plug located in the analyzer top body. Deposit all
spheres through the hole provided and replace plug.
8. After spheres have been deposited, rotate motor/striker
assembly by hand, checking for rubbing. The striker can be
observed below the motor. If the striker is not rotating, refer
below to Section D, MOTOR/STRIKER ASSEMBLY. Turn
power switch to the ON position.
D. MOTOR/STRIKER ASSEMBLY
Replacing the motor (Part #450039) or striker assembly (Part #450045)
can be performed more easily if the main analyzer assembly is removed
from the panel and taken to a table or flat surface.
1. Disconnect power to the analyzer motor.
2. Disconnect signal wires from the copper and gold electrodes.
3. Remove reagent from the feeder body and reagent tubing from
valve adaptor. Unscrew two screws holding the main assembly
to the panel. Place the main assembly on a table.
4. With the main assembly upright, remove the three (3) screws
holding the motor plate to the top body. Lift the motor straight up
and out of the top body.
5. Invert the analyzer assembly and dump the 200 spheres into a
container. Remove the valve adaptor. The main assembly is
now disassembled as far as required.