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F 22 VGT a xylem brand Issued: 2/96 Supersedes: 6/90 Storage Each Flygt pump leaves the factory properly assembled CONTROLS: and prepaired to perform even after a reasonable idle time in storage.However,as prolonged idle time can be It is most important to make sure that Electrical detrimental to any rotating machinery, the procedures Controls, when subjected to extended storage, be outlined below should be followed in order to insure stored in a protected dry environment free from any that the equipment is in top condition to operate when corrosive atmosphere. Moisture in any form, including finally installed.Whenever possible,store pumping units condensation, can cause serious corrosion problems to in a dry environment free of extreme temperatures and the contact pointsurfaces as well asterminal connections. strong direct sunlight. Even though all terminal connections have been made NEW pumps: tight on initial assembly atthe factory,they may not remain 100% tight over an extended storage period due to the Storage 6t 12 months: compressibility of the copper wire and possible movement In general, rotating machinery left idle for extended due to variations in ambient temperature. The problem periods of time, tends to establish a "set" position due will vary in degree depending on wire size and whether to inaction of the moving parts. Some of these areas the terminal connection is of solid or stranded wire. To may be damaged (especially seals) from the sudden insure proper operation, recheck all terminal connection fast breakaway of start-up after a prolonged idletime.To screws for tightness prior to placing the control on line. insure that all rotating parts are free for final installation and start-up, it is good practice to rotate the impeller by hand once a month. It is also good practice to relieve the tension on the cable entry sealing grommet by backing off the cable entry compression screws slightly. If this is done, it is most important that a clear note be attached as a reminder to: Re-Tighten Cable Entry Compression Screws Before Installation. Storage 12 to 24 months: In addition to the above,apply a protective spray coating of silicone or rust inhibiting oil to the impeller and inside of the volute by spraying in through the volute outlet and up through the volute inlet. Also coat the volute outlet flange face. USED pumps: Before storing a used pump for an extended period of time, the unit should be dismantled, checked for any defects,repaired where necessary and reassembled.At reassembly,follow instructions in the Service Manual, especially regarding seal assemblies. Protect the impeller and volute as mentioned in the paragraph above. In all cases,itis good practice to check all external bolts, nuts and screws for tightness before final installation after extended storage.