b.
Adjust direct drives for proper alignment of flexible couplings.
Provide lubrication when a particular coupling so requires. Check
security of couplings to driver shafts. Set drive components to
ensure free rotation with no undesirable stresses present on the
coupling of attached equipment.
c.
Check motors for amperage comparison to nameplate value. Correct
conditions that produce excessive current flow and that exist due
to equipment malfunction.
d.
Check speeds of each motor and driven apparatus to ensure that
they are operating at the desired point.
e.
Check the actual suction and discharge pressure of each pump
against the desired performance curves.
f.
Check pump packing glands or seals for cleanliness and adjustment
before running each pump. Inspect shaft sleeves for scoring and
proper placement of packing; replace when necessary. Ensure
piping system is free of dirt and scale before circulating liquid
through pumps.
g.
Inspect both hand and automatic control valves. Clean bonnets and
stems, tighten glands to ensure no leakage, but permit valve stems
to operate without galling. Replace packing in valves that
require same to retain maximum adjustment after system is judged
complete.
Replace entire packing in valves that continue to leak
after adjustment. Remove and repair bonnets that leak. Coat
packing gland threads and valve stems with a suitable surface
preparation after cleaning.
h.
Inspect and make certain that control valve seats are free from
foreign material and are properly positioned for the intended
service.
i.
Check flanges and packing glands after the system has been placed
in operation. Replace gaskets in flanges that show signs of
leakage after tightening.
j.
Inspect screwed joints for leakage and remake each joint that
appears to be faulty. Do not wait for rust to form. Clean
threads on both parts, apply compound and remake joint.
k.
Strainers installed shall be thoroughly blown out through
individual valved blow-off connection on each strainer prior to
placing in operation.
l.
Thoroughly blow out or dismantle and clean strainers after systems
have been in operation one week. Thoroughly clean, repair, and
place back in service traps or other specialties in which foreign
matter has accumulated, causing malfunction or damage.
m.
Adjust pipe hangers and supports for correct pitch and alignment.
n.
Remove rust, scale and foreign materials from equipment and renew
defaced surfaces. When equipment is marred, the Contracting
Officer shall have the authority to request that new materials be
provided.
SECTION 15502N
Page 180
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