Page 63 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

48 Major Process Equipment Maintenance and Repair

a. Wipe the lapped sealing faces of rotating and stationary ele-
ments perfectly clean with a soft cloth.
b. Oil rotating member lightly and slide on sleeve, taking care not
to get oil on the seal faces.
c . Position rotating member on sleeve as indicated on detailed seal
drawing.
d. Lightly tighten set screws which hold rotating member to sleeve
(see Tables 1-4 and 1-5).

7. Oil pump shaft and slide sleeve and seal assembly over shaft.
8. Insert impeller key (1 1-1).
9. Press sleeve against shaft shoulder and firmly tighten set screw
holding seal rotating member.
10. Insert gasket (15-2) into groove on cover (02).
11. Slide casing cover (02) over pump shaft (20) and seal, insert and
tighten cap screws between housing (49) and cover. Check loca-
tion of seal flush connection.
12. Bring seal gland forward and start gland nuts.
13. Squirt a few drops of light oil into the flush connection.
14. Check shaft and make sure it is free to rotate.
15. Draw gland nuts up evenly until metal to metal contact is realized
between gland and cover.
16. Push impeller onto shaft and draw up impeller nut (21-1) (L.H.
Threads).
17. Return complete back pull-out assembly to pump.
18. Slide casing gasket (15-1) over cover.
19. Slide rotating element into casing and tighten casing stud nuts
evenly.
20. Check shaft that it is free to rotate and does not bind.
2 1. Follow start-up instructions.

Reassembling Bearing Housing

After inspection has been carried out and all parts are cleaned and cor-
xected as necessary, the bearing housing can be reassembled by following
these instructions and by frequently referring to the sectional drawing in
Figure 1-15:
1. Press inboard bearing end cap (13-1) into bearing housing (49) un-
til face is flush with housing. Oil return hole must be properly lo-
cated.
2. Assemble oil flinger (29-2) on shaft (20) against the shoulder and
lock in place with two socket head set screws.