2
777-Series Self-Priming Pumps
FEATURES
Body:
Bronze
Impeller:
Neoprene or Nitrile
Shaft:
Stainless Steel
Shaft Seal:
Mechanical Face or Lip Type Seal
Wearplate:
Replaceable
Bearings:
Shielded Ball Bearings
Ports:
1” NPT Female
Weight:
5-3/4 lb (2.61 kg)
Model No.
Description
777-0001
777-0003
777-9001
777-9003
777-9051
Neoprene Impeller (Lip Seal)
Nitrile Impeller (Lip Seal)
Neoprene Impeller (Face Seal)
Nitrile Impeller (Face Seal)
Half Thickness Cam (Face Seal)
VARIATIONS AVAILABLE
APPLICATIONS
MARINE –
Pump bilge, Circulating water in bait tanks, Utility
dock-side pump, Engine cooling.
INDUSTRIAL –
Circulating and transferring, Velocity mixing,
Pumping machine tool coolants, Return spill, Sump drainage,
Chemicals, Pharmaceuticals, Soap, Liquors, Ink, Dyes, Alcohol,
Dilute acids, Tanning Liquors, Glycerine, Brine, etc.
FARMING –
Pumping water for stock, Pumping water from
shallow wells and cisterns, Pumping liquid ballast into tractor tires.
PLUMBING AND HOME EMERGENCY USE –
Pump-
ing out flooded basements, Cesspools, Sumps, Water heaters and
water closets, Drains and sinks, Draining fish ponds and pools.
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 11 of
assembly instructions to change direction of impeller blade
deflection under cam.
2.
Drive –
Belt or Direct with flexible coupling.
Belt –
Overtightened belt load will reduce pump bearing life.
Direct –
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 pulley or coupling must be pressed on shaft, remove
end cover and impeller to support shaft from impeller end during
press operation. Do not hammer pulley or coupling on shaft; this
may damage bearings or seal.
3.
Speeds –
2100 RPM to the maximum shown in the perfor-
mance table. Consult the factory for operation at speeds above
those shown. 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 ft (3.3m), a minimum of 800 RPM is required.
Pump will produce suction lift up to 22 ft (6.7m) when wetted.
BE SURE SUCTION LINES ARE AIRTIGHT OR PUMP WILL NOT
SELF-PRIME.
5.
Running Dry –
Unit depends on liquid pumped for lubri-
cation. DO NOT RUN DRY for more than 30 seconds. Lack of
liquid will damage the impeller.
6.
Notice –
Do not pump light fraction petroleum derivatives,
solvents, thinners, highly concentrated or organic acids. Dam-
age to pump may result. Consult Jabsco Chemical Resistance
Table (available upon request from the factory) 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 –
Consult Head Capacity Table for recommended
maximum for continuous operation. If pressures exceed those
shown, consult the factory.
8.
Temperatures –
Neoprene 45°-180°F (7-82°C). Nitrile 50°-
180°F (10°-82°C).
9.
Freezing Weather –
Drain unit by loosening end cover. The
following anti-freeze compounds can be used without any
adverse effects to the neoprene impeller: Atlas “Permaguard”,
DuPont “Zerex” and “Telar”, Dow Chemical “Dowguard” and
Olin Mathison “Pyro” Permanent. Most Methyl alcohol (metha-
nol) based anti-freeze can be used.
DO NOT USE PETROLEUM BASED ANTI-FREEZE COMPOUNDS
OR RUST INHIBITORS.
10.
Gasket –
Use a standard pump part. Thicker gasket will reduce
priming ability. A thinner gasket will cause the impeller to
bind. Standard gasket is 0.010” (0.25mm) thick.
11.
Spare Parts –
To avoid costly shutdowns, keep a JABSCO
Service Kit on hand.
WARNING: Chemical hazard.
Pumps which have handled corrosive,
caustic or toxic fluids should be drained
and completely flushed prior to servicing. Failure to do so can
cause injury.
