30
Instruction & Operation Manual
800.789.1718
7.
Screw back plate pins into back plate. (
see figure no.4
)
8.
Position casing gasket on circumference of the back plate.
9.
Check that both the seal face on the back plate and the seal face of the carbon seal are
completely clean. Even the oils from your skin are not acceptable on these two surfaces.
Clean faces thoroughly with a clean, lint free cloth.
10.
Assemble back plate to adapter.
a. Place the back plate assembly onto the adapter. Put even pressure down on the back plate
until it is completely seated on the adapter.
see figure no.5
)
b. Check that the drive collar extrusion is fully engaged in the slot on the cup.
c. Rotate the back plate so that the back plate pins engage the adapter pins, holding it in
place.
d. With back plate depressed completely to the adapter, inspect the spring to
ensure there is some space between the coils. If the coil is too tight, repeat step
5 and add 0.05" to dimension 'A' and re-check spring coil. Repeat if necessary.
11.
Install the impeller.
a. Insert the impeller retainer into the hole near the end of the stub shaft so that it is centered
in the shaft.
b. Slide the impeller onto the stub shaft.
c. Using a small hex key or screw driver push the impeller retainer so that it is sticking out one
end as far as it will allow, thus locking the impeller into place.
12.
Close and seal the pump.
a. Place casing onto assembly with casing outlet pointing in the desired position.
b. While applying sufficient pressure to bring adapter and volute together put on and tighten
clamp.
13.
Attach and tighten guard assembly making sure that the seal flush tab on the adapter lines up
with the indent on the corresponding side of the guard.
(Older Version) BC-Series Installation
'D' Seal Pump Assembly
... continued from previous page
A
B
A
B
Figure No. 4
Figure No. 5
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assembly instructions