Flowserve Guardian Sealless Metallic - Manual (Page 53)

GUARDIAN USER INSTRUCTIONS ENGLISH 71569212 08-11
Page 53 of 68 flowserve.com
6.9.3 Mounting the wet end to the power end
6.9.3.1 Long-coupled Guardian G & H series
pumps
Keep your fingers away from the pinch point
where the bearing housing and adapter meet as the
jackbolts are threaded. The magnetic forces draw
the power end and wet end together with great force.
a) This step must be performed with the wet end
assembly and bearing housing in the horizontal
position. Thread the square head jackbolts [6575]
completely through the threaded holes in the bearing
housing [3200]. (The entire length of the bolts must
be threaded through the holes.) Slide the wet end
assembly into the bearing housing until the jackbolts
slide into the recesses in the adapter [1340].
b) Turn the jackbolts [6575] counterclockwise to
allow the wet end of the pump to slide into the
power end. Turn the bolts one to two turns in a
diagonally alternating pattern to prevent binding.
This procedure ensures that the wet end is
inserted evenly without damaging the magnets or
the containment shell. (Figure 6-45.)
Figure 6-45: Power End/Wet End Assembly
c) Back out the jackbolts until the adapter butts up to
the bearing housing [3200]. Make sure that the
adapter [1340] and the bearing housing sit flat
against one another. Insert the four (4) bearing
housing/adapter fasteners [6570.5] and tighten them
in an alternating pattern. Make sure the jackbolts do
not interfere with the tightening of these bolts.
6.9.3.2
Close-coupled Guardian G & H series
pumps – lantern assembly to the wet
end
a) Make sure the lantern/retainer o-ring [4610.1] is
in place in the wet end.
b) Orient the wet end vertically on the work surface.
(Figure 6-46.) Align the lantern [3132] such that
the roll pin in the adapter [1340] is aligned with
the mating hole in the lantern [3132]. Place the
lantern into adapter making sure the lantern
seats flat on the adapter. Insert the four (4)
lantern/adapter fasteners [6570.5] and tighten in
an alternating pattern.
c) The wet end assembly can now be assembled to
the outer magnet/motor assembly.
Figure 6-46: Lantern assembly to wet end
6.9.3.3
Close-coupled Guardian G & H series
pumps – drive end to the wet end
assembly
Keep your fingers away from the pinch point
where the lantern [3132] and motor flange [251] meet
as the jackscrews are threaded. Magnetic forces draw
the drive end and wet end together with great force.
a) This step must be performed with the wet end
assembly and motor assembly in the horizontal
position. Thread the square head jackscrews
[6575] completely through the threaded holes in
the lantern [3132]. The entire length of the
jackscrews must be threaded through the holes.
b) Install a lantern gasket [4590.7] on the face of the
motor flange [251].
c) Slide the motor assembly toward the wet end
assembly until the jackscrews slide into the
recess in the motor flange. (See Figure 6-47.)
Figure 6-47: Motor/pump assembly