ITT GOULDS PUMPS 3316, Инструкции по установке, эксплуатации и обслуживанию

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on Figure 23 for right hand or Figure 22 for left hand rotation. This dimension must be held as near
as possible with the keyways in the shaft and sleeve in alignment.
5. Insert impeller key (178) in shaft keyway. Turn sleeve (104) about a quarter turn, either way, so that
key cannot enter keyway in this sleeve until after impellers are checked for correct setting in casing.
6. Replace O-Ring (412A) in groove in end of shaft sleeve (104). O-Ring may have to be slightly
stretched to fit.
7. Slide second stage or discharge impeller (145) on shaft and tap in place against the sleeve with a
lead mall.
Do not tap against the sealing surface on end of hub.
8. Slide diaphragm (146) over shaft and up against impeller (145).
9. Slide first stage or suction impeller (101) on shaft and tap in place against second stage or dis-
charge impeller (145).
10. Place O-Ring (412A) in groove in end of shaft sleeve (126). Screw shaft sleeve on shaft up to key.
11. Slip wearing rings (103 or 127) on impeller, being sure that the single lock on the upper half of rings
is toward the center of impellers.
12. Place stuffing box bushings (125) on shaft and slide over shaft sleeves toward impeller. The single
lock on the upper half of bushings must be toward the outside, away from impeller.
13. If oil seals (332 or 333) are being replaced, make sure that the seals are installed so that the lips of
the seals face inward, toward the bearings.
14. Make sure that all parts that are assembled inside the bearing housings, including the shaft, shaft
nut, bearing end covers, and bearings, are entirely free from dust and dirt.
This is extremely important, as the life of a ball bearing can be drastically reduced if contaminated
with even a small amount of dirt. All bearing assembly operations should be done in as dust-free an
atmosphere as possible. All tools, as well as the hands, should be kept clean.
If new ball bearings are being used, they should not be unwrapped until ready for installation and
should not be cleaned or washed unless the protective wrapper has been broken and dirt allowed to
enter the bearings.
If old bearings, or new ones that have been allowed to become dirty, are being used, clean thor-
oughly before installing as follows: Use a clean pail or receptacle. Pour into it one or two quarts of
clean, waterfree kerosene. Dip the bearing into the kerosene and spin slowly. Repeat until all traces
of grease have been removed. Now blow dry with clean filtered compressed air, holding the two
races together so that they do not rotate but allowing the inner race to rotate a few turns now and
then to dislodge the kerosene from the retainer pockets. If the bearing is very dirty it is advisable to
rinse it in a second bath of clean kerosene. When the bearing has been blown dry, oil it immediately
with a good grade of clean machine oil; especially the race grooves and balls to prevent corrosion
or rust. If there is any question about the condition of the bearings, it is best to replace them. This
may prevent an unplanned shut-down.
15. Place deflectors (123) on shaft.
16. Wipe a small amount of grease on the oil seal lips. Place bearing housings (134 and 166) on shaft
and slide them along until they contact the shaft sleeves. Care must be taken not to injure the lips of
the oil seals during this operation. A thin piece of shim stock, wrapped inside the oil seal before
sliding over the shaft will protect the seal lips and can readily be removed after the seal is past the
shaft shoulder.
17. Coupling end bearing is single row. Thrust bearing is a duplex bearing (two angular contact bear-
ings, specially matched) and must be mounted in "back-to-back" position. This is done on the bear-
ings originally sent with the pump by having the stamped faces of the outer rings against each oth-
er.
18. Although the thrust and coupling end ball bearings are different, they are installed in a like manner
as follows: Apply a film of oil to the bearing seat on the shaft. Start bearing "square" and drive on
about 1/8", keeping bearing square at all times. Use a driving sleeve as shown in Figure 19 and
Figure 20. Note that the outside diameter of this sleeve should never be larger than the outside di-
ameter of the inner race of bearing. Next slip the bearing housing over the ball bearing toward the
7.11 Reassembly of pump
44 3316 Installation, Operation and Maintenance Instructions