BLACKMER LB601B - Seal (Packing) Replacement; Seal (Packing) Replacement Steps; Seal Installation Hazards

SEAL (PACKING) REPLACEMENT
588/A page 18/24
Follow steps 1 through 6 of the "Compressor
Disassembly" section of this manual.
1. Remove the upper and lower retainer ring from the
packing box being serviced. Disassemble the
packing box and discard the old packing sets and
packing springs.
2. Clean the packing box in a suitable solvent. Inspect
the bore for wear, roughness, or corrosion. Clean
or replace as necessary.
3. Ensure that the 6
th
digit of the Compressor ID
number is a "1", indicating a TYPE 1 packing
arrangement. See "Nameplate Data" in this
manual. Refer to Figures 12 and 13 for proper
TYPE 1 component location and orientation.
4. Single-Seal Packing Boxes
a. Install the lower retainer ring.
b. Install the packing rings, spring, washers, and
the upper retainer ring. To ease installation on
the second retainer ring, use a screwdriver
handle and press on the last washer to
compress the seal spring slightly.
5. Two-Seal Packing Boxes
a. Install the inner retainer ring of the lower
packing.
b. Install the packing rings, spring, washers, and
the second retainer ring. To ease installation
on the second retainer ring, use a screwdriver
handle and press on the last washer to
compress the seal spring slightly.
c. Insert the oil deflector ring through the top of
the packing box, flat side down, into the cavity
between the upper and lower packing. The oil
deflector ring will be positioned between the
two sets of packing.
d. Install the upper packing set starting with the
inner retainer ring.
6. The lower packing MUST be manually lubricated
with oil several times during the first 60 minutes of
compressor operation to prevent overheating of the
piston rods and potential damage to the packing
material.
To lubricate the packing:
a. Remove the inspection plate from the
crosshead guide.
b. Stop the compressor approximately every 5
minutes to allow adequate cooling of the piston
rods.
c. Using a small oil can, lubricate the piston rods
each time the compressor is stopped.
Hazardous
machinery can
cause serious
pe
r
so
n
a
l in
j
u
r
y
.
DO NOT INSERT OBJECTS OR
FINGERS IN INSPECTION CAVITY.
CAN CAUSE SEVERE PERSONAL
INJURY
Hazardous gases
can cause property
damage, personal
in
ju
r
y
o
r
dea
th
IMPROPER SEAL INSTALLATION
COULD RELEASE EXPLOSIVE GAS TO
THE ATMOSPHERE CREATING AN
EXPLOSION HAZARD, POSSIBLY
CAUSING SEVERE PERSONAL INJURY
OR DEATH.
7. Proceed according to steps 5 through 15 of the
"Compressor Assembly" section.
Figure 13 - TYPE 1 Seal Orientation
Figure 12 - Typical Seal Assembly