Dionex ASE 100, Operator'S Manual

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ASE 100 Operator’s Manual
5-8
Doc. 031842-01 5/02
5.4 Cleaning and/or Replacing Pump Check Valves
5.4.1 Removing the Pump
1. Turn off the ASE 100 main power switch.
2. Unscrew the waste bottle from the bottle cap and set the bottle aside.
3. Toggle the needle switch to the
UP
position. If a collection bottle is
installed, remove the bottle from the bottle holder and set it aside.
4. Turn off the gas supply. Disconnect the gas source at the ASE 100
rear panel.
5. Remove the lower trim panel of the ASE 100:
a. Stand directly in front of the ASE 100, with both hands facing
palm upwards.
b. Hook the first two fingers of each hand under the top edges of the
bottle holders, near the
WASTE
and
COLLECTION
labels (see
Figure 5-3).
c. Brace your thumbs against the bottom of the cell door and the
control panel. Pull forward until the top of the trim panel pops off
the ball studs that secure it to the system.
d. Note the small round depressions on the left and right sides of the
trim panel, near the bottom (see Figure 5-4). Place your index
fingers in these depressions and pull forward until the bottom of
the trim panel pops off.
e. Pull the trim panel completely off, exposing the inner front panel,
and set the trim panel aside.
6. Remove the right side panel of the ASE 100:
a. Using a Phillips screwdriver, remove the two screws on the inner
front panel, near the needle assembly (see Figure 5-5).
b. Insert a screwdriver into the hole located beneath the top screw
hole (see Figure 5-5). Push the screwdriver in until the right side
panel slides back about 1/2 inch. To prevent scratches or other
damage to the panel, do not let the panel fall onto the
workbench.
c. Remove the right side panel from the system and set it aside.