EBARA EBHG - Manual (Page 12)

Ebara Submersible Grinder Sewage Pumps EbG, EbHG
Operation, Installation and Maintenance
Ebara Fluid Handling
www.pumpsebara.com 12
(803) 327-5005 • (803) 327-5097 fax rev. 08/12
Installation
USAGE:
The 3, 5, 7.5 & 10 HP grinder pumps are for
pumping domestic and light commercial
sewage.
These pumps can be used for pumping light
commercial or industrial sewage from
factories, schools, motels, apartments, etc..
This pump is intended to grind and pump all
normal sewage. It will handle reasonable
quantities of disposable diapers, sanitary
napkins, paper towels, rubber material,
wood, cigarette butts, string, plastic and
other material not normally found in
sewage.
CAUTION!
Pump is not to be disassembled in the field
except at certified service stations or at the
factory. Warranty is void if pump is taken
apart for any reason other than to replace
grinder impeller and grinder ring, which is
covered in these instructions.
PACKAGING
Each pump is packaged with 40 feet of
power cord in a carton that is marked with
the Model Number. Longer cords are
available – consult catalog.
INSPECTING PUMP
Before making any piping or electrical
connections, check pump for any shipping
damage. Turn grinder impeller to be sure it
is free. DO NOT TURN IMPELLER WITH
FINGERS AS EDGES ARE SHARP. Use allen
wrench in the impeller screw to turn the
impeller.
CAUTION !
No persons should be in the basin when
pump is lowered into position ! DO NOT lift
pump in a manner where failure could result
in loss of life.
After pump is installed in basin, NEVER
WORK ON MOTOR OR GRINDER UNIT
WITHOUT DISCONNECTING MOTOR LEAD
WIRES FROM CONTROL PANEL. DO NOT
RELY UPON OPENING THE CIRCUIT
BREAKER ONLY ! ELECTRICAL:
MOTOR OVERLOAD PROTECTION
Single phase motors are provided with an
on-winding thermal overload switch. If
motor overloads or overheats for any
reason, the switch opens, stopping motor.
As soon as the motor cools to normal
temperature, the switch automatically
closes and restarts motor.
MOISTURE DETECTION
All grinder pumps contain an electrode for
detecting water within the unit. The
electrode is housed within the seal
chamber, isolated from the motor chamber
be a mechanical seal. If the electrode
detects water within the oil-filled housing, it
will close the circuit to the red alarm light in
the control panel, indicating the motor must
be serviced before the upper seal fails.
MOTOR POWER CORD
All pump models have a seal leak detector
and use a 4 conductor, #10 gauge cord. The
three power conductors are BLACK, WHITE
and RED. The GREEN conductor connects
to the ground screw inside the cord cap.
For single phase,
BLACK is “Common”
WHITE is “Run ”
RED is “Start ”.
CONTROL POWER CORD
All pump models use a 5 conductor, #18
gauge cord for thermal and moisture
detectors. The BLACK & WHITE wires are
thermal detection. The RED & ORANGE
wires are moisture detection. The GREEN
wire is for ground connection.
IMPORTANT !
Ground wires must be connected in the
control box to grounding bar, which is
connected to a good suitable ground.
MOTOR IS NOT SAFE UNLESS PROPERLY
GROUNDED.