Pulsafeeder Pulsa Series 200-680C - Manual (Page 9)

9
Figure 7. Figure 8. Figure 9.
Operation and
Maintenance
The preceding instructions
have assisted you in proper
installation and start-up of
your 680C pump. The
following sections are
arranged to assist in
maintaining proper pump
operation and trouble
shooting any problems that
might develop during start-up
or thereafter.
Accurate records in the early
stages of pump operation will
reveal the type and amount of
maintenance that will be
required. A preventative
maintenance program based
on these records will insure
trouble free operation. It is
not possible in these
instructions to forecast the life
of such parts as the
diaphragm, check valves and
other parts in contact with the
product you are handling.
Corrosion rates and
conditions of operation affect
the useful life of these
materials so an individual
metering pump must be
gauged according to
particular service conditions.
HYDRACONE Diaphragm 5. Adjust the stroke length
Inspection (capacity) to maximum.
The HYDRACONE cover assembly.
diaphragm is an elastomeric 7. Remove the coupling
material which stretches on guard.
each displacement of the 8. Rotate the motor
plunger. It can be damaged coupling until the pump
by the following: piston is withdrawn to full
1. Chemical attack. drive motor end).
2. Mechanical damage 9. Loosen the hydraulic
from trash or abrasives. bypass valve screw
3. High temperature located on top of the
(Maximum 180 F, 2.2 C). hydraulic pumphead to o o
4. Low temperature (below be sure all hydraulic
40 F, 4.4 C). pressure has been o o
5. Suction pressure in relieved from behind the
excess of 20 psig. diaphragm.
Service conditions will properly dispose of oil
determine life of the and product leakage that
HYDRACONE and dictate the will occur when
replacement schedule. disassembling head and
To Inspect HYDRACONE 11. Remove the inlet check
Diaphragm valve to drain reagent
1. Remove all pressure extreme caution if
from the piping system. product is hazardous
2. Lock out motor. and wear proper
3. Close the inlet and outlet protective clothing.
shut-off valves. 12. Remove reagent head
4. Break the union or bolts and rinse the head
flanges on the piping. in water or a compatible
6. Remove the reservoir
suction stroke (toward
10. Arrange to catch and
valving.
head and cavity. Use
liquid.