SEAL (PACKING) REPLACEMENT
CB9A-030 page 22/28
Figure 20 - Lower Packing Assembly
3. LOWER PACKING BOX
a. Remove both retainer rings, then remove the
old packing, spring, and washers.
b. Clean the packing box in a suitable solvent.
Inspect the bore for wear, roughness, or
corrosion.
c. Install the lower retainer ring. Refer to the
sketch of the lower packing box for the proper
location and orientation of the packing
components, then install the packing rings,
washers, and spring. Install the second
retainer ring while using the handle end of a
screwdriver to compress the packing spring.
4. Proceed according to steps 5 through 13 of
"Compressor Assembly."
5. LOWER PACKING BREAK-IN
The lower packing MUST be manually lubricated
with oil several times during the first 60 minutes of
compressor operation. This will prevent
overheating of the piston rods and potential
damage to the packing material. If possible,
perform the packing break-in at a lower speed –
400-500 rpm.
To lubricate the packing:
a. Remove the inspection plate from the
crosshead guide.
b. Run the compressor for 5 minutes then
stop
the compressor for 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
personal injury.
Do not insert objects or fingers in
inspection cavity. Can cause severe
personal injury
Hazardous gases
can cause property
damage, personal
injury or death
Improper seal installation could release
explosive gas to the atmosphere
creating an explosion hazard, possibly
causing severe personal injury or death.
Содержание HD942A
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