ITT GOULDS PUMPS 3935, Инструкции по установке, эксплуатации и обслуживанию

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9 Spare parts
9.1 Ordering spare parts
To ensure against possible long and costly downtime periods, especially on critical services. it is advisa-
ble to have spare parts on hand. The most desirable parts to have on hand are the following:
1. Ball Bearings. Replacement angular contact thrust bearings must have races properly ground for
the appropriate mounting configuration. Angular contact bearings which are universally ground
may be mounted in tandem, back-to-back, or faceto-face configuration. The mounting configura-
tion (face-to-face for the S frame, and tandem for L. X, Y) should be specified when replacement
bearings are ordered from local sources to assure proper grinding of outer races.
2. Oil Seals.
3. Bearing locknut.
4. Bearing lock washer (Y frame only).
5. Mechanical Seal.
6. Casing 0-ring.
7. Back washers.
8. O-rings for seal seat, seal mount, casing and diffusers.
Also desirable, but more dependent on plant practice, is either of the following:
1. Complete set of impellers, diffusers, and thrust washers for the pump, or:
2. Spare liquid end consisting of everything but the bearing frame.
9.2 Instructions for ordering spare parts
Repair orders will be handled with the minimum of problems if the following information is accurately sup-
plied:
Nameplate Data
1. Pump Serial Number
2. Pump Model Number
3. Pump Size.
4. Pump Construction
Order Data
1. Part name
2. Part number (item number) These names and numbers should agree with those on 7.8 Sectional
view on page 27 .
Explanation of Pump Nameplate designation
9 Spare parts
Model 3935 Installation, Operation and Maintenance Instructions 33