3
Self-Priming Pumps —
Models: 6400-Series / 7420-Series
FEATURES
Body:
Bronze
Impeller:
Neoprene
Shaft:
Type 316 Stainless Steel
Wearplate:
Replaceable
Shaft Seal:
Carbon-Ceramic Face Type
Bearing:
Pre-lubricated Double Row Ball
Ports:
1-1/4” (32mm) NPT Internal
Weight:
10-1/2 lb (4.8 kg) Approx.
VARIATIONS AVAILABLE
MODEL NO.
DESCRIPTION
6400-0004
Full Thickness Cam, Neoprene
Impeller, Standard Shaft
6400-0051
Half Thickness Cam, Neoprene
Impeller, Standard Shaft
6400-1051
Half Thickness Cam, Neoprene
Impeller, Short S.S. Shaft for
Caterpillar
Engines
7420-0004
Full Thickness Cam, Neoprene
Impeller, Standard Shaft
7420-1001
Full Thickness Cam, Neoprene
Impeller, Short S.S. Shaft for
Caterpillar
Engines
6400-Series
7420-Series
APPLICATIONS
MARINE:
Pumping bilges, Engine Cooling.
INDUSTRIAL:
Circulating and Transferring liquids; Veloci-
ty-mixing; Transferring soap, liquors, pastes, glues, glycerine,
lotions and brine.
FARM:
Pumping water for stock and poultry houses and Booster
Pumping.
PLUMBING & HOME:
Pumping out flooded basements,
cesspools, sumps and many other uses.
WARNING: Injury Hazard.
Exposed pulleys and belts can cause injury.
Install shield around pulleys and belts.
Stay clear while machinery is operating.
DIRECT DRIVE —
Clearance should be left between drive shaft
and pump shaft when installing coupling. Always mount and align
pump and drive shaft before tightening the coupling set screw.
NOTICE:
If drive pulley or coupling must be pressed on shaft,
remove end cover and impeller and support shaft from impeller
end during press operation. Do not hammer a pulley or coupling
on shaft. Failure to follow above instructions can damage the
pump.
OPERATING INSTRUCTIONS
1.
INSTALLATION
- Pump may be mounted in any position. The
rotation of the pump shaft determines the location of the
pump’s intake and discharge ports. (Refer to dimensional
drawing.) Pump is normally assembled at factory for clockwise
rotation (looking at end cover). If counter clockwise rotation
is desired, follow steps 1 and 2 of disassembly and step 12 of
assembly instructions to change direction of impeller blade
deflection under cam.
2.
DRIVE
- Belt or Direct with flexible coupling. BELT DRIVE -
Overtight belt load will reduce bearing life.
3.
SPEEDS
- 500 RPM to the maximum shown in the perfor-
mance table. For longer pump life, operate at lowest possible
speeds.
4.
SELF-PRIMING
- Primes at low or high speeds. For vertical
dry suction lift of 10 feet, (3.1m) a minimum of 800 RPM is
required. Pump will produce suction lifts up to 22 (6.7m) feet
when wetted. BE SURE SUCTION LINES ARE AIRTIGHT.
5.
RUNNING DRY
- unit depends on liquid pumped for lubrica-
tion.DO NOT RUN DRY for more than 30 seconds. Lack of liquid
will damage the impeller.
6.
NOTICE
– If pumping light fraction petroleum derivatives, sol-
vents, thinners, highly concentrated or organic acids, consult
Jabsco “Chemical Resistance Table” (which is available upon
request from Jabsco) for proper body materials and impeller
compounds. If corrosive fluids are handled, pump life will be
prolonged if pump is flushed with water after each use or after
each work day.
7.
PRESSURES
– For continuous operation, pressure should not
exceed 30 psi (2.1 kg/sq cm).
