ITT Goulds Pump 3355, Инструкция по установке, эксплуатации и обслуживанию

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10. For the RS configuration, assemble the pump down to the suction casing (100F)
11. For the RS configuration, slide on the sleeve (310) and mount the suction casing (100F) with the O-
ring (312F). Make sure that the lines are in the correct position.
6.6.5 Complete the reassembly for the end suction configuration
1. Slide on the bearing sleeve (310) and lubricate the bearing surface.
2. Mount the intermediate bearing housing (134C) with the bearing bushing (197A) as for stage cas-
ing.
3. Mount the first stage of the pump and then secure the impeller (101) with a washer (199) and nuts
(304).
4. Tighten the first nut (304) securely.
5. Turn the nut back a one-quarter turn and secure it with a counter nut.
6. Mount the suction casing (100F) with an O-ring (412K) and assemble the tie rod (356S) and nuts
(357F) together slightly.
7. Align the bearing surface of the pump feet and place the pump on a flat surface.
8. Tighten the nuts (357F). See the torque values table.
9. Rotate the shaft (122) in order to verify that it turns freely.
6.6.6 Reassemble the discharge end ball bearings for the radial suction
configuration
1. Clean and lubricate the fitting surfaces between the bearing bracket (228C) and the discharge cas-
ing (110D).
2. Preheat the new bearing (409) to a maximum of 230°F (110°C) and slide it onto the shaft (122).
The variants are:
• Sizes 1.5 x 2.5-7 and 2.5 x 4-8: Roller bearing (409), double row angular ball bearings (sin-
gle bearing)
• Sizes 4 x 5-10 and 5 x 6-11: Roller bearing (409), paired angular ball bearings in back-to-
back arrangement
3. Tighten the shaft nut (136A) while the bearing is still hot.
4. After the bearing cools down, pack the bearing completely with grease making sure that grease
gets under the cage.
When the pump is started the bearing will run hot for several minutes until the excess grease is
purged. It will then return to a normal operating temperature. When the bearing is installed in the
bearing housing, the cavities on either side should be filled with grease for about 1/3 of the volume.
5. Fit the bearing bracket (228C) and screw it on lightly for the time being.
6. Screw the bearing cover (119) to the bearing bracket (228C).
7. Grease the contact surface of the thrower (248) and bring the thrower or heat flinger (123B) into
position on the spacer sleeve (157).
The thrower sits in a groove on the spacer sleeve. Make sure that the heat flinger blades are posi-
tioned approximately 0.75 in. (1.91 cm) from the bearing cover studs (356C).
8. Align the surfaces of the pump feet. Make sure that the pump is on an even surface.
9. Lay the discharge casing (100D) horizontally so that the shaft can be inserted (122).
6.6 Reassembly
Model 3355 Installation, Operation, and Maintenance Manual 55