Xylem Bell & Gossett VTP Serie Manual De Instrucciones página 20

The coupling between the driveshaft and discharge head
shaft may be a non-spacer type (see Figure 14), or a
spacer type (see Figure 15). The latter is used on pumps
furnished with a mechanical seal to permit servicing of
the seal without removal of the driver.
1. Driver support. When a driver support is furnished
and not installed, proceed as follows.
A. Hoist driver support, inspect the mounting
surfaces, register and clean these surfaces
thoroughly.
B. Install driver support on discharge head and
secure with capscrews provided.
2. Attach a sling to the lifting lugs of driver, hoist
motor, inspect the mounting surface, register, and
shaft extension, and clean these surfaces thoroughly.
If any burrs are found, remove burrs with a smooth
mill file, cleaning thoroughly afterward.
3. Orient the motor conduit box in the required
position. Align the motor mounting holes with the
mating tapped holes on the discharge head. Lower
the motor until the registers engage and the motor
rests on the discharge head. Secure motor with
capscrews provided.
4. On drivers having a non-reverse ratchet or pins,
manually turn the driver shaft clockwise viewed
from the top until the non-reverse ratchet or pins
fully engage.
5. Lubricate motor bearings in accordance with
instructions given on lubrication plate attached to
the motor case.
NOTE: Please read and follow the motor manufacturer's
instructions before lubricating the motor
bearings. Too much lubricant can cause the
bearings to overheat prematurely fail.
The motor must not be tested for direction
WARNING
of rotation when coupled to the pump.
If pump should rotate in the wrong direction, serious
damage to the pump and motor would result. Also
serious injury to personnel could result.
6. Make temporary electrical connections according
to tagged leads or diagram attached to the motor.
Motor must rotate counter-clockwise when viewed
from the top. See arrow on pump name plate. If
motor does not rotate counter-clockwise, you can
change the rotation by interchanging any two leads
(For three phase only, for single phase motors see
motor manufacturer's instructions.)
7. Motor shaft end play adjustment: if required,
motor shaft end play shall be checked with a dial
indicator prior to connecting the pump coupling to
the solid shaft motor. Consult the applicable motor
manufacturer's instruction manual for detailed
information on motor shaft end play.
20
COUPLING INSTALLATION:
1. Apply a thin film of oil on the pump key (730) and
insert key into headshaft keyway seat.
2. Gently lower pump hub of coupling (614) onto
headshaft.
3. Thread on the adjusting plate (613) onto the
headshaft until flush with top of the headshaft.
4. Apply a thin film of oil to the driver key (730) and
insert key into drive shaft keyway seat. Place the
driver hub (610) onto the drive shaft and with key
slide it up the drive shaft until the annular grove is
exposed. Install split ring (722) in the groove and
slide driver hub down over the split ring to capture
it.
Figure 14
5. If the pump
is supplied
with an
adjustable
spacer
coupling
(see Figure
15), install
spacer (612)
between
headshaft
and
driveshaft
hubs.
Secure with
capscrews
(759) and
hex nuts
(735).
Figure 15
(SEE FIGURES 14 and 15)