5.
Place snap ring (361) in shaft groove. Be sure that the groove is clean and that the snap
ring seats properly.
6.
Bolt bearing end cover (109 or 109A) to bearing housing. Be sure gasket (360) is in
place. Position end cover as directed in
7.5 Reassembly of pump on page 46
Step 20 so
that grease relief fitting or oil drain notch is in correct location.
7.
Align locks on bearing end cover with the grooves in lower half casing and rotate bearing
end cover 180° so that the locks are at the bottom.
8.
Assemble bearing cap (111) being sure that the 1/64" shims are in place, and that the
prick punch marks on the cap and the casing are on the same side. Now tighten the nuts
evenly.
9.
Refill with grease or oil as outlined in
7.1 Lubrication - bearings on page 37
.
7.9 Spare parts
To ensure against possible long and costly "down time" periods, especially on critical services, it is advis-
able to have spare parts on hand.
1.
The most desirable parts to have on hand are the following:
1.
"Rotating element." This is a group of assembled parts, including bearing housings, bear-
ings, bearing end covers, grease seals, wearing rings, stuffing box bushings and all rotat-
ing parts, except coupling.
2.
Stuffing box packing (106) - one set for two stuffing boxes.
3.
Stuffing box gland packing (210) - one set for four gland halves.
4.
Stuffing box gland halves (107) - four required.
With these parts on hand, pump can be easily and quickly reconditioned by replacing the worn
parts.
2.
An alternate, though not as desirable as that stated above, is to have on hand parts that are most
likely to wear and which can be used as needed.
Following is a list of these suggested parts:
1.
Stuffing box packing (106) - one set for two stuffing boxes.
2.
Stuffing box gland packing (210) one set for four gland halves.
3.
Shaft sleeve (104 and 126) - one each.
4.
Ball bearings (112 and 137) - two required (both bearings being the same).
5.
Snap ring (361) - one required.
6.
Wearing rings (103) - two required; or (127 and 142 - two of each.
7.
Shaft (122) - one required.
8.
Impeller key (178) - one required.
9.
Stuffing box bushings (125) - two required.
10. Stuffing box gland halves (107) - four required.
11. Ball bearing collar (237) - one required.
3.
If it is not convenient or desirable to carry the spare parts listed in items 1 or 2, the following list is
suggested as a minimum for servicing the pump under ordinary conditions of wear:
1.
Stuffing box packing (106) - one set for two stuffing boxes.
2.
Stuffing box gland packing (210) - one set for four gland halves.
3.
Shaft sleeves ( 104 and 126) - one each.
4.
Ball bearings (112 and 137) - two required (both bearings being the same).
5.
Snap rings (361) - one required.
7.9 Spare parts
56
3405-3406-3416 Installation, Operation and Maintenance Instructions
