5
GENERAL INFORMATION
TO THE PURCHASER
Congratulations! You are the owner of one of the fi nest
pumps on the market today. These pumps are products
engineered and manufactured of high quality components.
With years of pump building experience along with a con-
tinuing quality assurance program combine to produce a
pump which will stand up to the toughest applications.
Check local codes and requirements before installation.
Servicing should be performed by knowledgeable pump
service contractors or authorized service stations.
APPLICATION
This pump is designed for pumping raw or treated sewage,
light sludge, slurries, industrial wastes and similar liquids
containing solids. The pump must be installed on a fi rm,
level foundation such as the sump or pit fl oor and in a
vertical position and fully submerged in the liquid at all
times.
RECEIVING
Upon receiving the pump, it should be inspected for
damage or shortages. If damage has occurred, fi le a claim
immediately with the company that delivered the pump. If
the manual is removed from the crating, do not lose or mis-
place. The main items to look for are: (a) damaged crate;
(b) broken or cracked motor castings, pump casing, sup-
port feet, and fl anges; (c) oil leakage from base of motor or
bottom of pump; (d) injury to the power cables; (e) missing
items from the shipment.
STORAGE
Short Term -
Pumps are manufactured for effi cient
performance following long inoperative periods in storage.
For best results, pumps can be retained in storage, as
factory assembled, in a dry atmosphere with constant
temperatures for up to six (6) months.
Long Term -
Any length of time exceeding six (6) months,
but not more than twenty four (24) months. The units
should be stored in a temperature controlled area, a roofed
over walled enclosure that provides protection from the
elements (rain, snow, wind blown dust, etc..), and whose
temperature can be maintained b40 deg. F and
+120 deg. F. Pump should be stored in its original shipping
container and before initial start up, rotate impeller by hand
to assure seal and impeller rotate freely.
SERVICE CENTERS
For the location of the nearest Deming Service Center,
check your Deming representative or Crane Pumps &
Systems Service Department in Piqua, Ohio, telephone
(937) 778-8947 or Crane Pumps & Systems Canada, Inc.,
Bramton, Ontario, (905) 457-6223.
POWER SUPPLY
The power supply voltage, phase, and hertz must match
those (within the range stated below) stamped on the motor
nameplate. For three-phase motors, the only connection
of the motor power lead cable is to the power supply. For
single phase motors, the motor power lead cable and power
supply must be properly connected at the control box.
Motors will operate successfully with a frequency variation
of not more than 5 percent and at a voltage not more than 10
percent above or below the nameplate rating. Performance
within this range will not necessarily be the same as the
established performance at the correct rated voltage and
frequency.
EQUIPMENT
Three phase units consist of the pumping unit, including
motor with waterproof power cable and control cable, the
liquid end with discharge fl ange and moisture sensing relay.
The single phase units consist of the above, plus a motor
capacitor or motor control box.
The pump and motor have been assembled and adjusted at
the factory prior to shipment. The motor seal chamber has
been fi lled with proper type and grade of oil and no further
adjustment, venting or lubrication is required prior to the
installation and start-up.
MOTORS
A. Motors are Class I, Group D explosion-proof construction
and rated for continuous duty while completely submerged
in liquid or for 15 minutes in air. Excessive number of starts
may cause overheating. Motors should not be started more
than three times per minute with full submerged cooling.
B. Motors are factory connected, inside the sealed
motorcap, for the voltage shown on the nameplate.
Three-phase motors are dual voltage - 230/460 volts - and
are normally wired for 230 volts unless specifi ed for 460 volts.
If it is necessary to operate on the alternate voltage, leads
inside the sealed cap or conduit box may be reconnected.
Single-phase motors are 115/230 volt and are connected
for 230 volt when shipped. Five horsepower motors are
available in 230 volt only. Always check the voltage of the
power supply against fi nal nameplate connection voltage
before starting the pump.
C. Built in thermal protection switches are provided in all
motors to protect the motor windings against excessive
temperatures due to insuffi cient cooling or overload. To
be operative, the two thermal protection leads, P1 and P2,
must be connected to the magnetic starter control circuit,
as shown on the wiring diagrams. Thermal switch resets
automatically when the motor has cooled.
Caution: Do
not connect these leads in the power supply circuit
carrying current to the main motor terminals. The
thermal switches are not designed for breaking the
main power supply.
D. Motors are equipped with two moisture sensing probes
to detect any leakage of water between the outer and inner
seals at the base of the motor and warn of intending motor
trouble. The moisture sensing relay, furnished with the
pump, will indicate the presence of water in the oil chamber.
Leads from the sensors are W1 and W2. See wiring diagram
for proper connection. See Figure 5.
E. The motor lead cable are brought through an epoxy
sealed connector at the top of the motor providing a
mechanically strong, water-tight seal. If it is necessary to
remove the casting at the top of the motor, when replacing it,
care must be taken not to damage the O-ring seal. Replace
any damaged or nicked O-rings when re-assembling the
motorcap.
