YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
DP-2010 ver.05-2018
Page 18
s
eCTion
9: s
ysTem
m
ainTenanCe
7. 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 bushing and
o-rings out the bottom of the pump body
as shown.
8. Clean and inspect all components.
Replace if necessary.
9. Apply a light coat of non-soluble assembly
grease on all o-rings, bushings, and the
plunger shaft to prevent damage.
10. Install the body bushing into the bottom of
the pump body as shown.
11. Insert all other bushings, springs, and o-
rings in their respective sequence on the
plunger shaft as shown.
12. Carefully install assembly into the top of
the pump body, and screw the actuator
assembly onto the pump body. (Tighten
firmly by Hand ONLY)
13. Install the pump assembly on the inlet
valve assembly. (Tighten firmly by Hand
ONLY)
14. Connect the 1/8″ stainless steel tubing to
the pump body and 1/8″ plastic tubing to
the diaphragm housing.
15. Open the isolation valve.
16. Adjust the stroke adjustment knob to its
original setting.
17. Pressure test the pump as previously
described for proper operation.
figure 18
figure 19
NOTE:
Normal service generally requires
only the replacement of the o-rings and
seal found in repair kit D3-0002.
