JABSCO 777 Series Manual

www.PumpAgents.com - Click here for Pricing/Ordering
SELF-PRIMING PUMPS
FEATURES
Body: Bronze
Impeller: Neoprene or Nitrile
Shaft: Stainless Steel
Shaft Seal: Mechanical Face Seal or Lip Type
Wearplate: Replaceable
Bearings: Shielded Ball Bearings
Ports: 1" NPT Internal
Weight: 5-3/4 lb (2.61 kg)
VARIATIONS AVAILABLE
Model No.
777-0001 Neoprene Impeller (Lip Seal)
777-0003 Nitrile Impeller (Lip Seal)
777-9001 Neoprene Impeller (Face Seal)
777-9003 Nitrile Impeller (Face Seal)
777-9051 Half Thickness Cam (Face Seal)
APPLICATIONS
MARINE – Pump bilge, Washdowns, 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 – Pumping
out flooded basements, Cesspools, Sumps, Water heaters
and water closets, Drains and sinks, Draining fishponds
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
Description
Model 777-Series
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 – 100 RPM to the maximum shown in the
performance 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 feet, a minimum of
800 RPM is required. Pump will produce suction lift
up to 22 feet when wetted. BE SURE SUCTION
LINES ARE AIRTIGHT OR PUMP WILL NOT
SELF-PRIME.
5. Running Dry – Unit depends on liquid pumped for
lubrication. 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. Damage to pump may result.
Consult Jabsco Chemical
(available upon request from the factory) for proper
Resistance Table