Gorman-Rupp Pumps VS3A60-B 1368380 and up - Manual (Page 38)

OM-06012 ULTRA V SERIES
MAINTENANCE & REPAIR PAGE E - 14
If the transition chamber requires removal from the
Ultra V first stage pump, support the chamber us­
ing a suitable hoist and sling. See Figure 1 and re­
move the mounting hardware (8 and 9). Use the
hoist and sling to remove the transition chamber.
Remove the gasket (7).
Pump Casing and Transition Chamber Installa­
tion (Ultra Mate Second Stage Model Only)
(Figure 1)
Apply `Permatex Aviation No. 3 Form‐A‐Gasket' to
the mating surfaces and install a new gasket (7).
Using the hoist and sling, position the transition
chamber on top of the first stage pump casing. Se­
cure the transition chamber with the hardware (8
and 9). Remove the sling from the transition cham­
ber.
(Figure 3)
Lubricate a new O‐ring (22) with a generous
amount of grease and install it over the shoulder on
the transition chamber (5). Using the same lifting
method as used for disassembly, position the
pump casing (1) over the transition chamber
shoulder and secure it with the previously removed
hardware (7 and 21). Remove the sling and, if
used, the lifting device from the pump casing and
reinstall the pipe plug (4).
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.
Shaft and Bearing Reassembly and Installation
(Figure 4)
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 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.
Inspect the shaft for distortion, nicks or scratches,
or for thread damage on the impeller end. Dress
small nicks and burrs with a fine file or emery cloth.
Replace the shaft if defective.
Position the inboard oil seal (6) in the bearing hous­
ing bore with the lip positioned as shown in Figure
4, Detail C. Press the oil seal into the housing until
the face is just flush with the counterbored surface
toward the inside of the housing.
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.
NOTE
Position the outboard bearing (21) on the shaft with
the integral retaining ring on the bearing O.D. to­
ward the drive end of the shaft.
The bearings may be heated to ease installation.
An induction heater, hot oil bath, electric oven, or
hot plate may be used to heat the bearings. Bear­
ings should never be heated with a direct flame or
directly on a hot plate.
NOTE
If a hot oil bath is used to heat the bearings, both the
oil and the container must be absolutely clean. If
the oil has been previously used, it must be thor­
oughly filtered.
Heat the bearings to a uniform temperature no
higher than 250
_
F (120
_
C), and slide the bearings