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DynaPak 3010RNM Version 01102001 ATEX Rev.
YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
9.1 Recommended preventative
maintenance schedule
Every sampling situation is unique. Below are
our recommendations for average conditions.
A higher BTU content will necessitate more
frequent pump/filter maintenance.
A. Clean and lubricate the sample pump every
four months.*
B. Check the filter element every six months,
replacing as necessary.
C. Test the battery every month.
D. Test the system for leaks each time a fitting
or connection has been made.
9.2 Cleaning and lubricating the High
Pressure DP pump:
A. Close the isolation valve.
B. Disconnect the plastic tubing from the
solenoid valve to the pump diaphragm housing
by depressing the tubing release sleeve on the
diaphragm housing fitting while pulling out the
tubing. It is not necessary to remove the fitting
from the diaphragm housing.
C. Remove the sample discharge
(1/8" stainless steel tubing) from the pump
body.
D. Screw the stroke adjustment knob all the way
down to the 0 cc/stroke setting.
E. Unscrew the pump body by hand from the
inlet check valve assembly. Separation at this
point is recommended to maintain proper
tubing location and alignment between the
pump body and the probe body. Do not
remove the inlet check valve body from the
manifold unless cleaning is necessary. To
replace the inlet check valve o-ring, cut the
o-ring off the head of the dart and stretch the
new o-ring over the head of the dart using a
light coat of assembly grease.
F. Remove the diaphragm housing from the
pump body by unscrewing the diaphragm
housing and carefully pulling the plunger out of
the pump body. Inspect the plunger shaft for
damage or wear. The diaphragm chamber
houses the diaphragm, return spring, stroke
adjustment screw and plunger assembly. The
diaphragm chamber should not be disas-
sembled unless one of these items needs
replacing.
NOTE: Normal service generally requires only
the replacement of the o-rings and seal. A seal
repair kit (part number D3-0115) is available
from YZ.
11.2 a
11.2 c
11.2 e
11.2 f
11.2 d
11.2 b
9. Sampler maintenance:
9.2 B
9.2 D
9.2 F
9.2 C
9.2 E
9.2 A
CAUTION:
*Incorrect operation of valves (over tightening) can
result in damage to the valve components (isolation
valve bonnet assembly) which might result in the valve
stem being screwed out of the probe body. This of
course results in product at pipeline pressure being
vented continually through this port until this section
of the pipeline is shut in. Be aware of the following
procedures and information.
· DynaPak valves are of soft seat design and
should only be closed or opened with fingers.
No wrenches should ever be used.