MODELS 2P121 THRU 2P128 & WP373 THRU 2P380
assembly. Tighten screws with 9/16 wrench so the
adapter seats firmly on motor mounting face. (See
Figures 3 & 4.)
5. Slide the assembled shaft adapter clamp
(Ref. No. 2) to within 1/8" from the end of the
shaft adapter (Ref. No. 3). Align the slot in the
shaft adapter with the gap between the two
clamp halves and tighten the two socket head
capscrews (Ref. No. 1) with 3/16 hex key (allen
wrench) (See Figures 3 & 5).
Loosen the 3/8-16 x 1 hex capscrews (Ref.
No. 7) previously installed. Remove the 0.020"
shim from the opening in the front of the casing
(See Figure 6). Remove the screw (Rev. No. 7)
and washer (Ref. No. 6) installed in the bottom
hole of adapter and rethread it into the top hole
in adapter (See Figure 4).
Thread two 3/8-16 x 1¼ hex capscrews (Ref.
No. 22) with washers (Rev. No. 6) into two
bottom holes in adapter. Install mounting foot
(Ref. No. 23) with the longer leg towards the
rear of motor. Tighten all four hex capscrews
with 9/16" wrench (See Figure 3).
Turn impeller (Ref. No. 14) with a socket
wrench on the impeller locknut (Ref. No. 16), to
insure the impeller turns freely (turn clockwise
only). Impeller nut (Ref. No. 16) is turned CW
to tighten down the impeller. Pump motor
rotation is CCW facing front of pump.
Place suction plate gasket (Ref. No. 18) on
casing face. Place suction plate (Ref. No. 19)
on gasket and casing face with the inlet to the
top of pump. Thread (7) 1/4-20 x 3/4 hex
capscrews through plate into casing and tighten
with 7/16" wrench (See Figure 3).
10. Pump may now be returned to normal position
and is ready for installation.
Locate the pump as close to the fluid source
as possible making the suction line as short as
CAUTION: The unit should be located where motor is
protected from weather and extremes of heat, cold and
Mount the unit on a solid foundation. On fixed
installations, install both a union and a gate
valve (not furnished) on the discharge side of
the pump for service convenience. -To,
facilitate priming, install a Tee in the discharge
of the pump itself. Use the horizontal leg of the
Tee as the pump discharge and place a pipe
plug in vertical leg. This plug can be removed
and installed easily for filling the casing with the
liquid necessary for initial priming
CAUTION: Do not use globe or other restricting type of valve
at the discharge, as this would seriously restrict the capacity
of the pump.
Attach suction piping to the suction inlet and
discharge pipe to the discharge outlet. The
suction line should be positioned such that
there is a continual upward slope from the fluid
source to the pump. Avoid using loops or
sections of pipe or fittings which might permit
air to become trapped.