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4

completely removed. 
Set assembly on bench and remove 

connection box. When box is lifted 

off, connection wires to motor will be 

exposed. These wires will probably be 

burned, but each wire is tagged with a 

metal marker giving the wire number. Cut 

the wires.
If the leads to the connection box are 

burned, a complete new connection box 

with new wire must be used. The wires 

are potted-in with sealing compound and 

a new unit must be obtained from the 

factory.
The stator is held in the housing with a 

bolted-in clamp ring. 
After ring is removed, turn housing 

upright and bump on hardwood blocks. 

This should jar the stator loose and allow 

it to drop out.
Thoroughly clean housing before 

replacing new stator. Replace the stator 

and make all wire connections to the 

connection box before replacing housing 

on pump. This is important as leads must 

be tucked behind the windings by using 

hands up through rotor core.
IMPORTANT: Use only compression type 

insulated connectors on the wires. Do 

not tape leads as oil will deteriorate the 

tape and cause damage to stator and 

bearings.
Check top bearing. If clean and does 

not turn roughly, bearings can be reused 

and it is not necessary to completely 

dismantle pump to change bearings. If 

bearings are damaged with dirt or heat, 

they must be replaced. Remember to 

reinstall the upper bearing load spring.
Replace stator housing onto seal 

chamber and bolt in place. Be sure seal 

failure wire is connected before housing 

is assembled.
Be sure O-ring seal has been replaced. If 

O-ring is nicked or cut, replace with new 

rings. This applies to all O-rings used in 

assembly.
After all leads are reconnected in the 

connection box, make a high voltage 

ground test on each wire. The only wire 

that should show ground is the green 

power lead and the ground lead in the 

auxiliary control cable.
For safety, complete pump should be 

air checked under water for leaks. Lay 

pump on its side for this oil filling, with 

oil fill hole upright. Do not completely 

fill; leave oil about one inch below plug 

hole. Use only high grade transformer 

oil or regular 

Hydromatic

 submersible 

oil in this chamber. Replace plug; use 

Permatex

®

 on threads. Install air valve 

in top plug opening of motor housing 

Heat Sensors and Seal Failure 

Connections:

Be sure that heat sensor wires are 

connected in series with the starter coil. 

Connections are provided on the terminal 

strip; see wiring diagram.

Pump Operation

Starting System:

Turn H-O-A switch to Off position, then 

turn on main circuit breakers.
Open all discharge valves and allow water 

to rise in sump.
Turn H-O-A switch to Hand position 

on one pump and notice operation. If 

pump is noisy and vibrates, rotation is 

wrong. To change rotation on 3ø motors, 

interchange any two line leads to motor. 

Do not interchange main incoming lines. 

If duplex system, check second pump in 

same manner. 
Now set both H-O-A switches to Auto 

position and allow water to rise in sump 

until one pump starts. Allow pump to 

operate until level drops to turn-off point.
Allow sump level to rise to start other 

pump. Notice run lights on panel; pumps 

should alternate on each successive 

cycle of operation. 
Turn both H-O-A switches to Off position 

and allow sump to fill to the override 

control level.
Turn both switches to Auto position and 

both pumps should start and operate 

together until level drops to turn-off 

point.
Repeat this operation cycle several times 

before leaving the job.
Check the voltage when pumps are 

operating and check the amp draw of 

each pump. Check amps on each wire 

as sometimes a high leg will exist. One 

leg can be somewhat higher, 5 to 10%, 

without causing trouble. For excessive 

amp draw on one leg, the power company 

should be consulted.

Pump Maintenance

As the motors are oil filled no lubrication 

or other maintenance is required.
If the pump is used on a Hydrorail system, 

it should be lifted once every six months 

and checked for corrosion and wear.

Field Service on Motor:

All submersible motors out of warranty 

can be serviced in the field by any 

reliable motor service shop. Any pump (in 

warranty) must be returned to the factory 

for service or repaired at an authorized 

Hydromatic service center. Charges will 

not be allowed if (in warranty) pump is 

not taken to an authorized Hydromatic 

service center.

Field Service on Hydromatic 

Hazardous Location Pumps:

If a Hydromatic hazardous location pump 

is used in a hazardous location, or if the 

pump is still in warranty, the pump must 

be returned to the factory for service 

or repaired at an authorized Hydromatic 

service center. Charges will not be 

allowed if (in warranty) pump is not taken 

to an authorized Hydromatic service 

center. This will ensure the integrity 

of the hazardous location rating of the 

pump and comply with our warranty 

requirements.

Disconnecting Pump Cords:

If a Hydromatic hazardous location pump 

is to be removed from its location, the 

pump cords may be disconnected at the 

control panel (on sump mounted control 

panels) and cord assembly taken with 

pump. Do not reconnect power to a cord 

and cap assembly while removing from 

pump.
CAUTION: If cord openings from sump 

to control panel are open, gases from 

sump could enter panel and an explosive 

condition could exist.

Replacing Cords:

The power cord and heat sensor – seal 

failure cord is potted into the connection 

box cap, forming the cord and cap 

assembly.
If cords require replacement due to 

damage or cords being too short, cord 

and cap assembly must be replaced as 

a complete assembly available from 

factory.
Check pump for proper rotation before 

returning to normal service.

Replacing Lower Seal, Impeller or 

Volute:

The wet-end components may be 

repaired or replaced by an authorized 

Hydromatic service facility without 

compromising the hazardous location 

rating to the pump.

Replacing Stator:

If stator only is damaged, it may not 

be necessary to completely dismantle 

pump as stator and housing can be lifted 

from pump without disturbing seals or 

bearings.
Drain all oil from upper housing, remove 

from upper housing, remove drain plug 

in bottom of stator housing and remove 

plug in top of housing to allow air to enter.
After chamber is drained, remove hold-

down bolts and lift off. Use care in lifting 

as the seal failure connecting wire must 

be disconnected before housing is 

Summary of Contents for S3HRC

Page 1: ...MP RECESSED IMPELLER ENGLISH PAGES 2 12 Installation and Service Manual NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who mai...

Page 2: ...If the lower seal leaks and moisture enters this chamber the moisture would settle to the bottom of the chamber and will complete the circuit between the moisture detectors This circuit must be connec...

Page 3: ...om the factory as 460 volt 3 phase cannot be rewired to any other voltage To Re wire the pump from 230V to 460V 3 phase Only a 230V pump from the factory is considered dual voltage a cord label clearl...

Page 4: ...other pump Notice run lights on panel pumps should alternate on each successive cycle of operation Turn both H O A switches to Off position and allow sump to fill to the override control level Turn bo...

Page 5: ...HEAT SENSORS ARE NOT CONNECTED AS SHOWN IN SERIES WITH CONTACTOR OIL Before refilling chamber with oil air test as described above Refill both chambers with oil as described above Always check all lea...

Page 6: ...S LOCATION ONLY PROBE TEST RESISTOR ON HAZARDOUS LOCATION ONLY PROBE TEST RESISTOR ON HAZARDOUS LOCATION ONLY PROBE TEST RESISTOR ON HAZARDOUS LOCATION ONLY 230 VOLT SINGLE PHASE 200 OR 575 VOLT THREE...

Page 7: ...7 Wiring Diagrams...

Page 8: ...018 Nut 4 18 010270061 Stud 4 19 071310001 Gasket 1 20 105 014034 263 Bolt 3 21 003000001 Seal Ceramic Std 2 006960001 Seal Carbide Opt 1 22 005190011 Washer 1 23 005560031 Bolt 1 24 147690012 Impelle...

Page 9: ...eal Carbide Opt 1 24 107690002 Volute 1 25 005170041 Capscrew 3 26 009750121 Retainer Ring 1 27 107430012 Bearing Housing 1 28 049160001 Upper Seal 1 29 005680071 Capscrew 4 30 002380061 Capscrew S ST...

Page 10: ...7 30 Dia 1 071440092 Impeller 7 20 Dia 1 071440112 Impeller 6 40 Dia 1 071440132 Impeller 5 90 Dia 1 071440142 Impeller 5 50 Dia 1 26 071430012 Volute Case 1 27 001500291 O ring 1 28 009750121 Snap Ri...

Page 11: ...005170081 Capscrew 4 32 24407C223 Stator 1 hp 230 1 60 1150 rpm 1 147152031 Stator 1 hp 200 1 60 1150 rpm 1 24407C225 Stator 1 hp 230 460 3 60 1150 rpm 1 24407C224 Stator 1 hp 200 3 60 1150 rpm 1 2440...

Page 12: ...perate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and parts used in connection...

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