DP-2010XN Version 08222001 ATEX Rev.
YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
17
g. Remove the internal bushings and o-rings from
the pump body by inserting a nonmetallic rod
(larger than 1/4", smaller than 1/2") into the top of
the pump body. Gently tap to remove all bushings
and o-rings out the bottom of the pump body.
h. Clean and inspect all components. Replace if
necessary.
NOTE: Normal service generally requires only
the replacement of the o-rings and seal. A seal
repair kit (part number D3-0002) is available from
YZ.
i. Apply a light coat of non-soluble assembly
grease on all o-rings and bushings to prevent
damage.
j. Install the body bushing into the bottom of the
pump body.
NOTE: Apply a light coat of assembly grease on
the plunger shaft prior to installation.
k. Insert all other bushings, springs, and o-rings in
their respective sequence on the plunger shaft.
l. Carefully install assembly into the top of the
pump body, and screw the actuator assembly onto
the pump body. (Tighten firmly by Hand ONLY)
m. Install the pump assembly on the inlet valve
assembly. (Tighten firmly by Hand ONLY).
n. Connect the 1/8" stainless steel tubing to the
pump body and 1/8" plastic tubing to the
diaphragm housing.
o. Open the isolation valve.
p. Adjust the stroke adjustment knob to its original
setting.
q. Pressure test the pump as previously described
for proper operation.
11.2 j
11.2 k
11.2 g
11. Sampler maintenance
