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

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6.6.2 Reassemble the shaft seal
CAUTION:
Placing the pump in a vertical position is required for assembly.
1. Always use a lubricant when mounting mechanical seals. Do not use mineral grease or oil if you are
not absolutely certain that it is compatible with the O-ring material.
2. Insert the seat ring of the mechanical seal (383 & 383S) in the seal cover (184). Slide the rotating
unit of the mechanical seal (383 and 383S) onto the shaft sleeve (104 and 126) and secure with set
screw (if required).
3. Slide on the O-ring (412F) and apply a lubricating agent, such as silicon grease, using a brush.
4. Lubricate the shaft sleeve (104 and 126) on the I.D. so that the O-ring groove remains clean (start
approximately ½” inside).
NOTICE:
Standard O-rings made of EP rubber are not resistant to mineral oil or greases.
5. Slide on the shaft sleeve (104 and 126). When sliding on the shaft sleeve, make sure that the O-
ring can slide easily into the groove.
6. Insert the O-ring (412H) in the casing and secure it with silicon grease.
If possible, make sure that the O-ring is touching the outer diameter. You can pull the O-ring in order
to slightly enlarge it.
7. Carefully mount the seal cover (184). Use caution that the pin is in the correct direction (445E) with
the groove in the bearing bracket.
8. Insert the shaft sleeve key (401) and slide on the spacer sleeve (157). Make sure that the pump
spacer sleeve is assembled in the following direction:
157 401
157
401
9. Screw the bearing cover (119) to the bearing bracket (228C).
10. Grease the contact surface of the thrower (248) and bring the thrower or heat flinger (123B) into
position on the spacer sleeve (157), whichever is applicable.
The thrower sits in a groove on the spacer sleeve while the heat flinger blades need to be posi-
tioned approximately ¾” from the bearing cover studs (356C).
6.6.3 Reassemble the suction end ball bearings
The variants are:
• The suction end ball bearing is a single radial ball bearing (112) for all pump sizes.
6.6 Reassembly
Model 3355 Installation, Operation, and Maintenance Manual 53