HP 8-UB-1 - Manual (Page 26)

UB USER INSTRUCTIONS ENGLISH 71569247 07-04
Page 26 of 32
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6.10.5 Casing upper half
a) Assemble the casing upper half over the lower
half. Take care to ensure the renewable rings and
diaphragm plate are correctly located in the upper
half bores and that dowel holes pick up the
locating dowels in the lower half.
b) Tap horizontal flange over locating dowels to
accurately position the top half casing and torque
up all horizontal flange bolts.
c) Check for free rotation.
d) Using a sharp flexible-bladed knife, cut off the
exposed casing gasket in the stuffing box area
flush with the stuffing box face.
e) If mechanical seals are fitted apply a small amount
of silicon rubber sealant along the horizontal joint
line on the stuffing box face and fit seal cover
complete with gasket or O-ring. Take care not to
damage O-ring, if fitted, and locate cover squarely
on stuffing box face.
f) Torque up seal cover bolts and check shaft/sleeve
does not rub on seal cover or stationary seal seat
bore. Ensure any spare holes in mechanical seal
cover, particularly on cartridge seals, have sealing
plugs fitted.
g) If gland packing is fitted pack the gland, ensuring
that the cut ends in each ring are staggered by
120 degrees. The glands are packed as shown on
the relevant drawings in Sections 8.1 to 8.3.
Finger tighten the gland nuts.
h) Check coupling alignment, fit coupling drive
element(s) and fit guards.
i) Pipe up any external auxiliary connections.
j) Check for free rotation.