Pd pump Systems neslab p/N 000878 Rev. 08/15/96 Service Manual

Figure 32
Figure 33

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44
Periodic cleaning of the screen is necessary. The screen may be
removed without significant fluid loss. Turn the unit off and discon-
nect from the power source. Have a clean rag handy which has
been dampened and twirled into a pointy shape. Remove the
strainer cap using an open end or socket wrench. Pull out the
screen and quickly stuff the rag into the opening. Some spillage
will be unavoidable. If a helper is available, the helper could hold
the rag tightly in place while you clean the screen. (You can tem-
porarily reinstall the strainer cap finger tight.)
The debris will be inside the screen. Clean the screen under
running water. A toothbrush is a handy tool for cleaning. It will fit
nicely inside the PD2 screen. An alternative is to take a coarse
paper towel (the brown roll type), dampen it and twist it into a
spiral. Pull it through the screen several times, turning it as it
passes. Inspect the screen closely for damage - particularly holes.
It is advisable to keep a spare screen on hand. The spare may be
quickly substituted for the dirty screen, minimizing downtime and
fluid loss. Then the dirty screen may be cleaned at your leisure and
retained as the spare for next time.
A small amount of molybdenum lubricant (See COUPLING LUBRI-
CATION) on the PD2 strainer cover threads will assist sealing and
provide easier future service.

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45
Table 2
Part Parts 
List
Usage
Usage
Number
Description
PD1
PD2
012869 Adapter Fitting for pressure gauge
X
X
009142 Check vlave
X
X
008123 Clamp, V-band
X
X
008124 Coupling, Bronze 90 degree
X
X
004185 Coupling, Nylon
X
X
013123 Heat Shrink, ¾" diameter
X
X
008445 Motor mount
X
X
008295 Motor, ½ HP, 115/230v
008125 Motor, 1/3 HP, 115v 
X
008126 Motor, 1/3 HP, 208-220v
X
X
008120 Motor, ¼ HP, 115v
X
009057 Pressure gauge, 1.5" panel mount, 0-100 PSI
X
X
009212 Pressure gauge, 2" panel mount, 0-100 PSI
009083 Pressure gauge, 2" panel mount, 0-160 PSI
009200 Pressure gauge, 2" stem type, 0-100 PSI
008423 Pump, PD1, brass, bronze coupling. Replaced by 008576
008142 Pump, PD1, brass, captive coupling. Replaced by 008423
008576 Pump, PD1, brass, nylon coupling
X
008205 Pump, PD1, brass, optional hi temp Viton® seal
008159 Pump, PD1, stainless steel
008143 Pump, PD2, brass
X
008181 Pump, PD2, optional hi temp Viton® Seal
008155 Pump, PD2, stainless steel
008694 Relief valve, external
X
X
009058 Relief valve, external. Replaced by 008694
009347 Strainer assembly, bronze
X
013459 Strainer screen, PD1 replacement
X
009384 Strainer screen, PD2 replacement
X
004626 Strainer, POLYP 100 mesh
X
008899 Check Valve, ½", SWT, BRZ, WTR
X
X

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46
PD Pump Systems
NESLAB P/N 000878
Rev. 08/15/96
Service Manual