Pentair Pool Products SHURflo GMBN2VA Operating Instructions, Performance, Specifications And Parts Manual page 6

SHURflo Operating Instructions, Performance,
Specifications and Parts Manual
SHURflo Heavy-Duty Cast Iron and Bronze
Rotary Close-Coupled External Gear Pumps
Check motor.
It may be equipped
with an automatic resetting thermal
protector and may restart unexpectedly
(see specifications chart). Protector tripping
is an indication of motor overloading as a
result of operating the pump at too high a
pressure (over 125 PSI), too high of viscosity,
too high of specific gravity, excessively high
or low voltage, inadequate wiring, incorrect
motor connections, too small a motor
(sized incorrectly, not enough HP),
or a defective motor or pump.
Do not handle pump with wet hands
or when standing in water. Failure to
follow the General Safety Information
and all warnings could result in fatal
electrical shock!
Figure 3 - Type A Motor Shaft Coupler
Form L-4087 (12/09)
Bronze Models GMBN2VA, GMBN2VA3, GMBN2VA33, GMBN3VA, GMBN3VA4, GMBN3VA43, GMBN4VA,
GMBN4VA5, GMBN4VA53, GMBN5VB, GMBN5VB6, GMBN5VB63, GMBN6VC, GMBN6VC7, GMBN6VC73
Cast Iron Models GMCV2VA, GMCV2VA3, GMCV2VA33, GMCV3VA, GMCV3VA4, GMCN3VA43, GMCV4VA,
GMCV4VA5, GMCV4VA53, GMCN5VB, GMCV5VB6, GMCV5VB63, GMCV6VC, GMCV6VC7, GMCV6VC73
Assembly
(If pump and motor are
pre-assembled, skip assembly.)
1. Two styles of motor to pump shaft
couplers are manufactured but only
one is shipped with each pump.
See Figures 3 & 4 to identify which
coupler you have.
2. Apply anti-seize compound to the
entire length of the motor shaft
and drive coupling spline teeth.
3. If you have a Type B coupler, install
the rubber plug (See Figure 4) into
the bottom of the motor shaft bore
in the drive coupling.
4. Align the keyways of motorshaft
and coupling, then install the key
(See Figure 3 or 4). Slide the drive
coupling onto the motor shaft as far
as it will go.
NOTE: Some models are supplied with a
bushing and extra key (not shown),
which converts the drive coupling from
a 7/8" motor shaft bore to a 5/8" motor
Figure 4 - Type B Motor Shaft Coupler
6
shaft bore. Install bushing and key into
the motor shaft bore of the coupling if
needed.
5. Install the set screws into the
coupler and tighten the set screws
securing the coupler, key and motor
shaft together. For Type B collar,
ensure the collar set screws line up
over the key and it is flush with the
back edge of the coupling prior to
tightening (See Figure 4).
6. The coupling is now ready for final
pump motor assembly.
7. Make sure the splines are coated
with anti-seize compound or grease.
Slide the male spline shaft on the
pump head into the female spline
now mounted on the motor shaft.
The pump head will pivot on the
motor.
8. Secure the pump to the motor with
four bolts.
9. The unit is ready for operation.