Gorman-Rupp Pumps VS6A60-B 1321070 thru 1352520 - Manual (Page 37)

OM-06014 ULTRA V SERIES
MAINTENANCE & REPAIR PAGE E - 13
After removing the shaft and bearings, clean and
inspect the bearings in place as follows.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and bear­
ings are removed.
Clean the bearing housing, shaft and all compo­
nent parts (except the bearings) with a soft cloth
soaked in cleaning solvent. Inspect the parts for
wear or damage and replace as necessary.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven­
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain­
ers.
Clean the bearings thoroughly in fresh cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Bearings must be kept free of all dirt and
foreign material. Failure to do so will great­
ly shorten bearing life. Do not spin dry
bearings. This may scratch the balls or
races and cause premature bearing fail­
ure.
Rotate the bearings by hand to check for rough­
ness or binding and inspect the bearing balls. If ro­
tation is rough or the bearing balls are discolored,
replace the bearings.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the bearing
housing. Replace the bearings, shaft, or bearing
housing if the proper bearing fit is not achieved.
If bearing replacement is required, remove the out­
board bearing retaining ring (22) and thrust wash­
er (23). Use a bearing puller to remove the bear­
ings from the shaft.
Pump Casing and Transition Chamber Removal
(Ultra Mate Second Stage Model Only)
(Figure 3)
The removal method for the Ultra Mate pump cas­
ing (1) depends on the configuration of the casing
discharge port. If the discharge port is in a vertical
position, install two eye hooks in opposing holes in
the discharge flange. Use a suitable sling and hoist
to remove the casing.
If the discharge port is in a horizontal position, fab­
ricate a lifting device as shown in Figure 7 and
screw it into the hole for the pipe plug (4). Make
certain that the threaded end of the tool fully en­
gages the threads in the casing. Use a suitable
sling and hoist to remove the casing.
3/4-14 NPT
1” DIA. COLD
ROLLED STEEL
ROD DRILLED
AND TAPPED
5/8‐11 UNC
STANDARD
5/8‐11 UNC
LIFTING EYE
Figure 7. Casing Removal Tool
Do not attempt to lift the complete pump
unit using the lifting device. It is de­
signed to facilitate removal or installa­
tion of individual components only. Ad­
ditional weight may result in damage to
the pump or failure of the lifting device.
Remove the hardware (9 and 21) securing the
pump casing to the transition chamber. Separate
the pump casing and O‐ring (22) from the transi­
tion chamber.