ITT Goulds Pumps 3405, Инструкции по установке, эксплуатации и обслуживанию

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7 Care and maintenance
7.1 Lubrication - bearings
Grease Lubricated Bearings
1. As specified in Section 3.1 Pump bearings on page 20 , Model 3405 pumps with grease lubricat-
ed bearings are lubricated at the factory for 2000 hours or three months service. Do not add
grease at too frequent intervals. It is suggested that additional or replacement lubricant be added
only after 2000 hours operation or three month intervals. While shaft is revolving, insert grease
through "Alemite" fittings (193) into bearing housing until grease appears through relief fitting
(113), Do not add additional lubricant after grease appears through relief fitting.
2. The grease should be renewed in the Model 3405 housings at least once annually.
• Following an overhaul operation and when bearing housings contain no lubricant, pro-
ceed to grease the bearings as follows: Insert grease through "Alemite" fittings (193) into
bearing housing until grease comes out the relief fitting. Turn shaft by hand several revo-
lutions in both directions during the greasing operation. Do not add additional lubricant af-
ter grease appears through the relief fitting.
• Grease may be renewed in housings without removing rotating element as follows: Re-
move bearing end covers (109-119) and clean old grease from housing and covers using
clean cloths soaked in kerosene. Insert grease through "Alemite" fittings until new grease
appears through the bearings. Wipe bearing housings clean again to remove all old
grease displaced through the bearing. Replace end covers and add grease through the
"Alemite" fittings as described previously.
3. The ball bearing grease should be of a sodium or lithium base, NGLI No. 2 consistency. Do not
use graphite.
4. The following is the approximate grease capacity for each bearing housing in fluid ounces:
Group "S" - 2 ounces.
Group "M" - 3 ounces.
Group "L" - 4½ ounces.
Oil Lubricated Bearings
1. On Model 3406 and 3416 pumps, keep oiler bottle filled with correct grade of oil. Oiler will main-
tain constant oil level in bearing housings.
2. Under normal operating conditions, a good grade of oil will be suitable for 6 months to one year
between changes, as long as it is free from contaminants. A small sample of oil should be
drained from the bearing frame periodically. Any cloudiness, turbidity, discoloration or presence of
solids is evidence of contamination, and the oil should be changed immediately.
7.2 Repacking stuffing boxes
1. To remove stuffing box gland assembly: Back off nuts (355). Slip the cupped washers (354) from
bosses on gland, lift the upper gland half out of stuffing box and remove the gland bolts and lower
gland half. This now affords unobstructed access to the stuffing box for repacking.
2. Remove the three outer rings of packing with the aid of a packing hook.
3. Remove split lantern ring by inserting a wire hook in the slots in the outer edge of the ring and pull-
ing ring from box.
4. Remove the remaining rings of packing with the aid of a packing hook.
5. Remove all foreign matter from stuffing box.
7 Care and maintenance
3405-3406-3416 Installation, Operation and Maintenance Instructions 37