Flowserve IJ, Installation Operation & Maintenance

Page: 113 / 128

IJ PUMP OPERATION AND MAINTENANCE MANUAL
BO2660-01 6-30
10. Securely clamp assembly in vertical assembly apparatus.
11. With one hoist attached to each end of the vertical assembly apparatus with soft cables, tip
the internal assembly into a horizontal position and position it so that the intermediate covers
(33) rest on wooden blocks. Remove the lifting gear and vertical assembly apparatus.
CAUTION
If the axial movement of the shaft or the running position of
the impellers is not within tolerance, the internal assembly
has probably been assembled incorrectly or with improper
parts. The cause must be located and corrected before the
internal assembly is installed in the case.
12. Determine and record the rotor lateral movement as described in ROTOR LATERAL
MOVEMENT figure.
13. Place two nylon lifting straps or soft cables around the internal assembly and position them
so that the assembly is balanced between them. Then, using one hoist on each strap or one
hoist and a spreader bar, lift the assembly and move it to the assembly skid or carriage for
installation into the case.
6.6.1.2 Installing Internal Assembly
To install the internal assembly in the case (37), proceed as follows:
1. Verify that:
a. the internal assembly is completely assembled,
b. the inside surface of the case (37) and outside surface of the internal assembly are clean,
undamaged, and clear of corrosion, particularly the parting faces of the case (37) and
suction spacer (23).
2. Verify that the assembly skid or assembly carriage is bolted to free end of case. To avoid
subjecting internal assembly to binding or twisting stresses or having it roll off of the track,
ensure:
a. skid or carriage is aligned and leveled with bore of case;
b. flange of skid or carriage presses solidly against the case;
c. feet press against a solid surface across their entire area;
d. skid or carriage is bolted tightly against case, making track completely immobile.
3. Lubricate top of track to make internal assembly slide easily.
4. Using lifting gear installed in step 13. above, set internal assembly on track and rotate
assembly until assembly rail (462) lines up with assembly rail guide (1099) in case (37). Then
remove all lifting gear. Install nylon lifting strap and hoist on pressure reducing sleeve (77)
and lift assembly slightly to remove straps that are underneath assembly.
5. Using hoist and strap on pressure reducing sleeve, raise assembly slightly to reduce weight of
assembly on track.