42 / 72
Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
• Do not heat the impeller.
10. Exercise care and remove mechanical seal as follows:
a) If seal has an outside drive collar, engage seal setter, then loosen setscrews prior to removal of
assembly.
b) Remove power frame-to-cover cap screws.
c) Slide pump cover, with seal attached, off pump shaft. Place the cover, with seal flange facing
upward, on worktable.
d) Apply protective wrap and store seal components. Refer to seal manufacturer's literature for
disassembly, inspection, cleaning, and reassembly of the mechanical seal.
11. Disassemble the power frame as follows:
a) Remove pump half coupling and key. Application of heat is required for the removal and
replacement of pump half coupling. Use a puller tool to remove the pump half coupling.
• Use a safe heating method and provide protection for personnel handling the
heated half coupling.
b) Pump shaft can be removed in two directions. In power frames 10, 30-A and 50, press pump shaft
from impeller end through the power frame. Remove radial bearing from shaft. Remove lock nut
and lock washer and remove thrust bearings from shaft.
8.2 INSPECTION AND CLEANING
1. Thoroughly clean all parts and dry with compressed air or a clean, lint free cloth.
2. Inspect all components for corrosion, erosion, pitting, and scoring. If required, replace with Ruhrpumpen
O.E.M. genuine replacement parts.
a. Visual check all individual parts for any damage
b. Check the case for wear.
c. Check the impeller for wear.
d. Check the radial clearance for wear.
e. Check the antifriction bearings.
f. Check all auxiliary piping
g. Check for transmission elements of the coupling
To Next Page
Loading...