Instruction and Operation Manual
8
Figure 3. Dimension Y
4. Scribe the shaft to show dimension Y.
5. Ensure that the coupling hub bore, keyways,
and shaft are clean and free from burrs. Also
determine that the key fits in the keyways.
6. Heat the hub in an oil bath or oven to
approximately 250
o
F (121
o
C), or more if
necessary, so that the hub will slide onto the
motor shaft.
7. Position the hub at the scribed line on the
shaft.
8. Tighten the hub key set screw.
Note: Before the hub is installed onto the
flexible disk couplings, verify that the
coupling bolts and washers can be
assembled (Figure 4) from the motor
side of the hub when installed. If these
pieces do not assemble, insert short
bolts with bevel washers into the hub
flange before fitting them onto the shaft.
Figure 4. Assembly of Coupling Bolts and
Washers
Lube System
The internal lube oil system engineered for
Sundyne pumps consist of four major
components. They are:
•
Gearbox
sump
•
Main lube pump
•
Oil heat exchanger
•
Oil
filter
The lube pump intakes oil from the sump and
passes it internally to an externally mounted
manifold. The oil is then passed through the
heat exchanger, the filter, and back into the
gearbox. Once the oil is passed through the
bearings, it then drains back into the sump.
Gearbox Heat Exchanger
The standard heat exchanger is a shell and tube
water-cooled type. For optimum performance,
the following conditions must be met.
•
Cool water must be provided to the
tube side at a maximum pressure of
150 psig (11 kg/cm
2
)(103.5Kpag).
•
Coolant flow must be controlled to
maintain a gearbox sump temperature
between 140
°
F and 160
°
F (60
°
to
71
°
C).
•
Maximum recommended temperature
is 180
°
F (82
°
C).
The optional air-cooled heat exchanger should
be controlled to maintain the same gearbox
sump temperatures as above.
Mount the heat exchanger lower than the oil
filter to prevent air pockets in the lube oil lines at
start up. Air pockets can cause oil starvation at
the bearings.
Summary of Contents for LMV-313
Page 1: ...SUNDYNE LMV 313 PUMPS Instruction and Operation Manual August 2007 ...
Page 36: ...Instruction and Operation Manual 32 Figure 15 Inducer Housing Shim Adjustment ...
Page 40: ...Instruction and Operation Manual 36 Figure 17 Service Check Points ...
Page 69: ...Instruction and Operation Manual 65 Figure 22 Gearbox Components ...
Page 70: ...Instruction and Operation Manual 66 Figure 23 Pump Nomenclature ...
Page 71: ...Instruction and Operation Manual 67 Figure 24 Exploded View ...
Page 72: ...Instruction and Operation Manual 68 Shaft Assemblies Figure 25 Shaft Assemblies ...
