V1.4 11 of 22 04/01/2009
Repacking
• Grip the pump firmly across the ports and opposite side of the housing in a
vise with the shaft end up.
• Inspect the shaft at the flat and keyway area. Any burrs will interfere with
removal of the packing gland. Use a small, fine file if necessary.
• Remove the two packing gland screws at the shaft end and slide the packing
gland assembly off the shaft.
• Remove the old packing, packing retainer and spring.
• Inspect the shaft. If badly scored, the rotor must be replaced.
• Clean the packing chamber thoroughly. Carefully remove any sharp ridges
from the shaft end. This will eliminate possible damage to the lips of the
packing and ease installation.
• Replace the spring and packing retainer. Be certain that the spring is properly
located on the packing retainer and that the beveled surface of the packing
retainer is facing the shaft end of the pump.
• Install the V type packing rings. Rings should be installed separately and not in
sets. Three rings are required per pump. Exercise care when sliding the rings
into place so that the lips of the packing rings are stacked in line and
positioned on the beveled surface of the packing retainer ring.
• Replace the packing gland assembly and fasten it securely to the bracket
assembly with the packing gland screws. The tension of the spring is such that
normal wear on the packing is taken up automatically.
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