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Never allow the pump to run dry of the fluid being
pumped. A dry pump will quickly accelerate to a high
speed, possibly damaging itself. If your pump acceler-
ates quickly, or is running too fast, stop it immediately
and check the fluid supply. If the supply container is
empty and air has been pumped into the lines, refill the
supply container and prime the pump and lines with
fluid, being sure to eliminate all air from the fluid sys-
tem, or flush the pump as described in Shutdown and
Care at right.
Shutdown and Care
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
Always relieve the pressure whenever you shut off
the pump. Stop the pump at the bottom of its stroke to
keep fluid from drying on the exposed displacement
rod and damaging the throat packings.
Always flush the pump with a compatible solvent
before the fluid can dry on the displacement rod and at
the end of each day. Relieve the pressure after
flushing.
308–333
Operation
10a
16
6
Fig. 3
10b
34
21
33
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