Instruction and Operation Manual
SA-07-11-37 Rev Orig
17
Jan 2009
Reassembling the LMV-802
The following procedures apply to the LMV-802
process pump. Refer to the specification sheet
to determine you specific pump configuration
and optional equipment included. Parenthetical
numbers included in the text correspond to item
numbers in the parts list section.
STEP 1
Install seal spacer on the lower mechanical
seal.
Note: Chamfer must be towards the lower seal.
Before installing spacer inspect the seal and
sealing surfaces for
•
Abrasive particles on the fluid and
leakage sides of the mechanical seal.
•
Excessive seal face wear.
•
Binding action of the seal face washer.
Replace or rebuild faulty mechanical seals. A
seal may be rebuilt by replacing the following
parts:
•
Seal face washer.
•
Wedge ring or “O” ring.
•
Retaining ring.
•
Springs.
Seal repair kits are available for most seals.
See specific information on seals contained in
the data package that accompanied this pump.
Replace the seal rotating face if the wear track
is rough or is worn to a depth greater the
0.0002 inch (0.005mm).
A combined total of 0.010 inch (0.25mm) may
be removed by lapping the surfaces of the
pump seal. The flatness must be maintained to
within two helium bands.
STEP 2
Install the lower mechanical “O” rings.
Installing the “O” ring around the mechanical
seal and over the seal spacer.
STEP 3
Install the lower seal into the seal housing.
Mechanical seal and spacer installed in bottom
of the seal housing.
