Power-flo PFG2002HV, PFG2022HV, PFG2062HV, PFG2002HH, PFG2022HH Installation, Service Manual & Parts

INSTALLATION, SERVICE & PARTS MANUAL

BACK TO INDEX

Series:
PFG2002HV & HH
PFG2022HV & HH
PFG2062HV & HH
PFG2032HV & HH
PFG2042HV & HH

Double Seal

2 HP • 3450 RPM • 60 Hz

Submersible Grinder Pump

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

ISP No: PFGrinder - 9/09

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

General Safety Information

Before installation, read the following
instructions carefully. Failure to follow
instruction and Safety information
could cause serious bodily injury,
death and/or property damage. Each
Power-Flo pump is individually factory
tested to insure proper performance.
Closely following these instructions will
eliminate potential operating problems,
assuring years of trouble-free service.

ALL RETURNED

PRODUCTS MUST BE
CLEANED, SANITIZED,
OR RECONTAMINATED

PRIOR TO SHIPMENT,
TO INSURE EMPLOYEES WILL NOT
BE EXPOSED TO HEALTH HAZARDS
IN HANDLING SAID MATERIAL.
ALL APPLICABLE LAWS AND
REGULATIONS SHALL APPLY.

DO NOT introduced into any sewer,

either directly, or through a kitchen
waste disposal unit or toilet: Seafood

Shells, Aquarium Gravel, Cat Litter,
Plastic Objects (toys, utensils, etc.),
Sanitary Napkins or Tampons, Diapers,
Rags, Disposable Wipes or Cloth,
Medications, Flammable Material, Oil or
Grease, Strong Chemicals, Gasoline.

• Risk of electric shock. To reduce risk of
electric shock, always disconnect pump
from power source before handling.
Lock out power & tag.

• Installation must be in accordance
with the National Electric Code and all
applicable state and local codes.

• Installation and servicing is to be
conducted by quali ed personnel.

• These pumps are NOT to be installed
in locations classi ed as hazardous in
accordance with the National Electric
Code, ANSI/NFPA 70.

• Keep clear of suction and discharge
openings. Do not insert  ngers in
pump with power connected.

• Always wear eye protection when
working on pumps.

• DO NOT use power cord to lift pump.
Protect cable from cuts and punctures.
Do not handle power cable with wet
hands.

• Do not us these pumps in water over
145˚F. Consult Power-Flo for high
temperature pump models.

• Pumps build up heat and pressure
during operation-allow time for pumps
to cool before handling or servicing.

This pump is NOT intended for
use in swimming pools or any
body of water with human
contact. Pumps when used as a
decorative water fountain
pump MUST be used in circuit
protected by a Ground Fault
Interrupter.

• Bronze/brass  tted pumps may contain
levels higher than considered safe for
potable water systems. Government
agencies have determined that leaded
copper alloys should not be used in
potable water applications.

Model Number

MFG Date

AMPS VOLTAGE

PHASE

60 Hz HP

877-24 PUMPS

www.powerflopumps.com

2

C US

® Power-Flo is a registered trademark of Power-Flo Technologies Inc.
Other brand and product names are trademarks or registered trademarks of their respective holders.
Alteration Rights Reserved. 11/2007 - 3/08, 9/08, 6/09, 9/09

IMPORTANT!

Prior to installation, record Model Number, MFG Date, Amps, Voltage,
Phase and HP, from pump name plate for future reference. Also record the
Voltage and Current Readings at Startup:

1 Phase Models 3 Phase Models

Amps: Amps L1-2: Volts L1-2:

Volts: Amps L2-3: Volts L2-3:

Amps L3-1: Volts L3-1:

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

DISCHARGE 1-1/4” NPT Vertical, Bolt-on Flange

LIQUID
TEMPERATURE

VOLUTE Cast Iron, Class 30

MOTOR HOUSING Cast Iron, Class 30

SEAL PLATE Cast Iron, Class 30

IMPELLER 12 Vane, Vortex, Bronze

SHREDDING RING Stainless Steel

CUTTER Stainless Steel

SHAFT Stainless Steel

SQUARE RINGS Buna-N

HARDWARE Stainless Steel

PAINT Powder Coated - Industrial Grade

SEAL

UPPER BEARING Single row, Ball, Oil Lubricated

INTERMEDIATE
BEARING

LOWER BEARING Sleeve, Oil Lubricated

POWER CORD

MOTOR

SINGLE PHASE

THREE PHASE Dual Voltage 230/460.

NOTE: Consult factory before making modi cations as they may e ect CSA
listing.

160°F Intermittent

Tandem Double Mechanical,
Carbon/Ceramic/Buna-N

Single row, Ball, Oil Lubricated

PFG Series: 20 ft. Custom Molded, Fast
Disconnect, for Sealing and Strain Relief.
CSA approved, 12/4 Type SOW

Oil Filled, Squirrel Cage Induction,
Class B Insulation

Capacitor Start/Capacitor Run. Includes
overload protection in the motor. Requires

starter or control panel which includes
capacitors.

Speci cations

Series: PFG2002HV & HH
PFG2022HV & HH
PFG2062HV & HH
PFG2032HV & HH
PFG2042HV & HH

Description

Designed to reduce domestic, commercial, institutional
and light industrial sewage to a  nely ground slurry.

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

2 HP • 3450 RPM • 60 Hz

Submersible Grinder Pump

C US

3

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Speci cations

MODEL HP Hz Volts/Ph RPM

High Volume

PFG2002HV* 2 60 200/1 3450 17.0 53.0 F SOW 12/4 .67

PFG2022HV* 2 60 230/1 3450 15.0 53.8 H SOW 12/4 .67

PFG2062HV 2 60 200/3 3450 11.0 42.0 J SOW 12/4 .67

PFG2032HV 2 60 230/3 3450 9.0 36.0 J SOW 12/4 .67

PFG2042HV 2 60 460/3 3450 4.0 18.0 J SOW 12/4 .67

High Head

PFG2002HH* 2 60 200/1 3450 17.0 53.0 F SOW 12/4 .67

PFG2022HH* 2 60 230/1 3450 15.0 53.8 H SOW 12/4 .67

PFG2062HH 2 60 200/3 3450 11.0 42.0 J SOW 12/4 .67

PFG2032HH 2 60 230/3 3450 9.0 36.0 J SOW 12/4 .67

PFG2042HH 2 60 460/3 3450 4.0 18.0 J SOW 12/4 .67

(*) IMPORTANT! - These pumps require a control panel with start, run capacitors and relay.
Capacitor kits which include Start & Run capacitors and Start relay, are available if a Power-Flo control panel is not used.
See page 13 for wiring schematic.
PF88243 - for 200 volt, 1 phase
PF73306 - for 230 volt, 1 phase

MODEL HP Volts/Ph

High Volume

PFG2002HV 2 200/1 30 Amp K-60 MARS 169 150 mfd - 250 volts 20 mfd - 450 volts

PFG2022HV 2 230/1 30 Amp K-57 MARS 169 150 mfd - 250 volts 45 mfd - 450 volts

PFG2062HV 2 200/3 20 Amp K-53 N/R N/R N/R

PFG2032HV 2 230/3 20 Amp K-50 N/R N/R N/R

PFG2042HV 2 460/3 15 Amp K-33 N/R N/R N/R

High Head

PFG2002HH 2 200/1 30 Amp K-60 MARS 169 150 mfd - 250 volts 20 mfd - 450 volts

PFG2022HH 2 230/1 30 Amp K-57 MARS 169 150 mfd - 250 volts 43 mfd - 450 volts

PFG2062HH 2 200/3 20 Amp K-53 N/R N/R N/R

PFG2032HH 2 230/3 20 Amp K-50 N/R N/R N/R

PFG2042HH 2 460/3 15 Amp K-33 N/R N/R N/R

BREAKER

SIZE

HEATER

SIZE (**)

Full Load

Amps

VOLTAGE

RELAY

Locked

Rotor Amps

NEMA Start

Code

START

CAPACITOR

Cord
Typ e

Cord

Size

RUN

CAPACITOR

Cord

O.D.

N/R = Not Required
Winding resistance ± 5% at terminal block. Rated operation at ± 10% voltage at motor.
(**) Recommended heater sizes may very depending on pump station requirements.

4

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG-HH, 2HP Submersible Grinder Pumps

BACK TO INDEX

Performance

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

5

PFG-HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Performance

6

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Dimensions

Receiving Inspection

Upon receiving the pump, it should be
inspected for damage or shortages.
If damage has occurred, le a claim
immediately with the company that
delivered the pump. If the manual is
removed from the packaging, do not
lose or misplace.

Storage

Any product that is stored for a period
longer than six (6) months from the
date of purchase should be bench
tested prior to installation. A bench
test consists of, checking the impeller
to assure it is free turning and a run
test to assure the motor (and switch
if provided) operate properly. Do not
pump out of liquid.

Controls

PFG series grinders require a separate
approved pump control device or panel
for automatic operation. Be sure the
electrical speci cation of the control
selected properly match the electrical
speci cations of the pump.

Location

The grinder pump is designed to  t
in basin or wetwell by using a slide
rail system (with legs removed) or
by resting on  oor of basin with legs
attached.

IMPORTANT ! - A CLEARANCE
UNDER THE PUMP FOR
ENTRANCE OF SEWAGE SOLIDS
MUST BE A MINIMUM OF 3
INCHES TO A MAXIMUM OF 4.5
INCHES.

Receiving & Installation

Submergence

The pump should always be operated in
the submerged condition. The minimum
sump liquid level should never be less than
above the pump’s volute (See Figure 1).

Recommended
Submergence Level

Minimum
Submergence Level

8”

Figure 1

Bottom of Feet

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

7

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Receiving & Installation

Installation

There are several methods of installing
grinder pumps. See contract plans and/
or speci cation: A slide rail in a package
system or concrete wet well is the most
common, which allows the pump(s)
to be installed or removed without
requiring personnel to enter the wet
well.

The sump or basin shall be sealed
and vented in accordance with local
plumbing codes. This pump is designed

to pump grinder or wastewater,
nonexplosive and noncorrosive liquids
and shall NOT be installed in locations
classi ed as hazardous in accordance
with the National Electrical Code (NEC)
ANSI/NFPA 70 or Canadian Electric
Code (CEC). The pump should never be

installed in a trench, ditch, or hole with
a dirt bottom. The legs will sink into
the dirt and the suction will become
plugged.
The installation should be at a su cient
depth to ensure that all plumbing
is below the frost line. If this is not
feasible, remove the check valve and
size the basin to accommodate the
additional back ow volume.

Discharge Piping

Discharge piping should be as short
as possible and sized no smaller than
the pump discharge. Do not reduce

the discharge pipe size below that
which is provided on the pump. Both

a check valve and a shut-o valve are
recommended for each pump. The
check valve is used to prevent backow
into the sump. The shut-o valve is
used to manually stop system ow
during pump servicing.

Liquid Level Controls

The level control(s) should be mounted
on the discharge piping, a cable rack
or  oat pole. The level control should
have adequate clearance so it cannot
hang up in it’s swing and that the pump
is completely submerged when the
level control is in the “O ” mode. By
adjusting the cord tether the control
level can be changed. One cycle of
operation should be observed, so that any
potential problems can be corrected.

It is recommended that the level control
 oat should be set to insure that the liquid
in the sump never drops below the top of
the motor housing or a minimum level of
10 inches above the basin  oor.

Electrical Connections

Power cable - The power cable mounted

to the pump must not be modied in any
way except for shortening to a specic
application. Any splice between the pump
and the control panel must be made in
accordance with the electric codes. It
is recommended that a junction box, if
used, be mounted outside the sump or be
of at a minimum Nema 4 construction if
located within the wet well. DO NOT USE

THE POWER CABLE TO LIFT PUMP.

Always rely upon a Certi ed Electrician
for installation.

Thermal Protection:

The normally closed (N/C) over
temperature sensor is embedded in the
motor windings and will detect excessive
heat in the event an overload condition
occurs. The thermal sensor will trip when
the windings become too hot and will
automatically reset when the pump
motor cools to a safe temperature.

It is recommended that the thermal
sensor be connected in series to an alarm
device to alert that an overtemperature
condition and/or motor starter coil to
stop pump.

In the event of an overtemperature,
the source of this condition should be
determined and repaired immediately.
Thermal protection shall not be used as a
motor overload device. A separate motor
overload device must be provided in
accordance with NEC code.

WARNING! - DO NOT LET
THE PUMP CYCLE OR RUN IF
AN OVERLOAD CONDITION
OCCURS !

If current through the temperature sensor
exceeds the values listed, an intermediate
control circuit relay must be used to
reduce the current or the sensor will not
work properly.

TEMPERATURE SENSOR ELECTRICAL

RATINGS

Volts Continuous

Amperes
110-120 3.00 30.0
220-240 1.50 15.0
440-480 0.75 7.5

600 0.60 6.0

Wire Size:

If longer power cable is required consult
a quali ed electrician for proper wire
size.

Inrush

Amperes

8

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Installation & Service

Pre-Operation

1. Check Voltage and Phase
Compare the voltage and phase
information stamped on the pump
name plate.

2. Check Pump Rotation - Improper
motor rotation can result in poor
pump performance and can damage
the motor and/or pump. Check
rotation on three phase units by
momentarily applying power and
observe the “kickback”.

Kickback should always be in a
counter-clockwise direction as
viewed from motor end or opposite
to impeller rotation. Incorrect rotation
for Single-Phase pumps is unlikely.
If the rotation is incorrect contact
factory.

3. Name Plate - Record the information
from the pump name plate to
drawing in front of manual for future
reference.

4. Insulation Test - An insulation
(megger) test should be performed
on the motor. Before the pump is put
into service. The resistance values
(ohms) as well as the voltage (volts)
and current (amps) should be
recorded.

5. Pump-Down Test - Be sure pump
has been properly wired, lowered into
the basin, sump or lift station, check
the system by lling with liquid and
allowing the pump to operate through
its pumping cycle. The time needed to
empty the system, or pump-down
time along with the volume of water,
should be recorded.

Maintenance

No lubrication or maintenance is required.
Perform the following checks when pump
is removed from operation or when pump
performance deteriorates:
a). Inspect motor chamber for oil level
and contamination.
b). Inspect impeller and body for
excessive build-up or clogging.
c). Inspect motor and bearings.
d). Inspect seal for wear or leakage.

Servicing

NOTE: Item numbers in ( ) refer to Figures
8 & 9.

Cooling Oil - Anytime the pump is
removed from operation, the cooling oil
in the motor housing should be checked
visually for oil level and contamination.
To check oil, set unit upright. Remove
pipe plug (4) from housing (15). With a
ashlight, visually inspect the oil in the
housing (15) to make sure it is clean and
clear, light amber in color and free from
suspended particles. Milky white oil
indicates the presence of water. Oil level
should be just above the motor when
pump is in vertical position.

Oil Testing

• Drain oil into a clean, dry container by
placing pump on it’s side, remove pipe
plug (5), from housing (15).

• Check oil for contamination using an
oil tester with a range to 30 Kilovolts
breakdown.

• If oil is found to be clean and
uncontaminated (measuring above
15 KV. breakdown), rell the housing.

• If oil is found to be dirty or
contaminated (or measures below
15 KV. breakdown), the pump must
be carefully inspected for leaks at the
shaft seal, cable assembly, square ring
and pipe plug, before relling with oil.
Tolocate the leak, perform a pressure
test.

After leak is repaired, dispose of old oil
properly, and rell with new oil.

Pressure Test (If oil has been drained)

Remove pipe plug (4) from housing (15).
Apply pipe sealant to pressure gauge
assembly and tighten into hole. Pressurize
motor housing to 10 P.S.I. Use soap
solution around the sealed areas and
inspect joints for “air bubbles”.

If, after ve minutes, the pressure is still
holding constant, and no “bubbles” are
observed, slowly bleed the pressure and
remove the gauge assembly. Replace
oil. Leek must be located and repaired if
pressure does not hold.

Pressure Test (If oil has NOT been
drained) - Oil should be at normal level.

Remove pipe plug (4) from housing (15).
Apply pipe sealant to pressure gauge
assembly and tighten into hole. Pressurize
motor housing to 10 P.S.I. Use soap
solution around the sealed areas above the
oil level and inspect joints for “air bubbles”.
For sealed areas below oil level, leeks will
seep oil. If, after ve minutes, the pressure
is still holding constant, and no “bubbles” /
oil seepage is observed, slowly bleed the
pressure and remove the gauge assembly.
Replace oil. Leek must be located and

repaired if pressure does not hold.

Figure 2

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

9

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Service

Pressure builds up extremely
fast, increase pressure by

“TAPPING” air nozzle. Too much
pressure will damage seal. DO

NOT exceed 10 P.S.I.

Seal Chamber - Set pump on its side with
 ll plug (22) downward, remove plug (22)
and drain all oil from seal chamber. Aplly
pipe sealant to pressure gauge assembly
and tighten into hole in intermediate
coupling (21). Pressurize seal chamber to
10 P.S.I. and check for leaks.

Oil Replacement
Motor Housing - Drain all oil (if not

already done so) from motor housing
and dispose of properly per Local and
Environmental Standards.

Set pump upright and re ll with new
cooling oil, see “Cooling Oil” chart. Fill to
just above motor as an air space must
remain in the top of the motor housing to
compensate for oil expansion. Apply pipe
thread compound to threads of pipe plug
(4) then assemble to motor housing (15).

Seal Chamber - Drain all oil (if not already
done so) from seal chamber and dispose
of properly per Local and Environmental
Standards. Place pump on its side with
plug (22) upward, and re ll with new oil,
see “Cooling Oil” chart. Apply pipe thread
compond to threads of pipe plug (22) and
assemble to intermediate coupling (21).

DO NOT overll oil. Overlling
of housing with oil can create

excessive and dangerous hydraulic
pressure which can destroy the
pump and create a hazard.
Overlling oil voids warranty.

Cooling Oil

Recommended Supplier/Grade

BP Enerpar SE100
Conoco Pale Parafn 22
Mobile D.T.E. Oil Light
Shell Canada Transformer-10
Texaco Diala-Oil-AX

WARNING ! - Before any service
work is done, disconnect and
lock out electrical power to
pump.

Disassembly

Cutter - Lay pump on its side and

remove the cutter retaining screw (40)
and washer (28). A small amount of heat
may be needed to loosen screw. DO
NOT overheat. Wedge a  at screwdriver
between cutter and shredding ring and
remove screw. With a hammer and punch,
tap the cutter (29) counter-clockwise to
remove.

CAUTION ! - Cutter edges are
very SHARP. Cutter must be
removed before removing

volute.

Volute - Remove hex nuts (41) from studs

(34) and remove volute (25) from pump.

Shredding Ring - To replace or reverse
the shredding ring (27) press out using an
arbor press.

Impeller - Remove impeller (30) by
turning counter-clockwise while holding
the motor shaft stationary with a
screwdriver. NOTE: Seal spring is relaxed
with impeller removed, some oil may
seep from seal cavity. Do Not store pump
without impeller in place.

Outer Seal - Handle seal parts with care.
Remove seal (33) spring and rotating
member from shaft. Examine all seal
parts. Inspect contact faces for signs of
uneven wear tracks on stationary, chips
and scratches on either seal face. DO NOT

interchange seal components, replace
the entire shaft seal (33).

Seal Plate - Remove cap screws (32) and

washers (11) from seal plate (31). Remove
seal plate (31) and square ring (24) from
intermediate coupling (21). With  at
screwdriver, press out seal (33) stationary
member. Inspect square ring (24) for cuts
or abrasions.

Motor - Remove pipe plug (4) and drain
oil if not already done so. Position pump
upright using blocks or pvc pipe to avoid
resting pump on the shaft. Remove cap
screws (1) and lockwashers (2) from cable
assembly (3) and remove cable assemble
(3) by pulling straight up. Remove
retaining ring (38). Using a 1/4-20 bolt,
thread bolt into the center of the terminal
block (37) and pull straight up to remove.
Disconnect all wires, noting where each
was connected. There are numbers next
to the pins on the bottom of block, use
these for reference.

Remove cap screws (35) and lockwashers
(11) from motor housing (15). Vertically
lift motor housing (15) from intermediate
coupling (21) along with square ring (20),
replace if cut or damaged. Remove stator
bolts and carefully remove stator housing
from rotor. Pull rotor out with bearing (18)
and rotating member of inner seal.

Inspect motor winding for shorts and
check resistance values. Check rotor for
wear. If rotor or the stator windings are
defective, the complete motor must be
replaced.

10

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Service

Bearings & Inner Seal - Remove seal (19)
rotating member and spring from rotor
shaft. Press stationary from intermediate
(21) with  at screwdriver. Examine all seal
parts. Inspect contact faces for signs of
uneven wear tracks on stationary, chips
and scratches on either seal face. DO

NOT interchange seal components,
replace the entire shaft seal (19).

Remove retaining ring (39) from shaft.
Using a wheel puller or arbor press
remove bearing (18) from shaft. Remove
upper motor bearing from shaft with a
bearing puller. (See Figure 3)

Check sleeve bearing (23) for excessive
wear, if replacement is required, press
sleeve from intermediate coupling (21).

IMPORTANT! - All parts must be
clean before reassembly.
Handle seal parts with extreme
care. DO NOT damage lapped
surfaces.

Reassembly

Bearings - Be careful not to damage

the rotor shaft when replacing bearings.
Using an arbor press, hold the rotor and
press the upper bearing on the rotor
shaft, applying force to the inner race of

the bearing only. Replace upper retaing
ring onto rotor shaft. In the same manner
replace lower bearing (18) onto rotor
shaft. Place lower retaining ring (39) onto
shaft.

Inner Seal - Clean and oil seal cavity
in intermediate coupling (21). Lightly
oil (Do not use grease) outer surface
of stationary member. Press seal’s
(19) stationary member rmly into
intermediate coupling (21), using a seal
tool or pipe. Nothing should come in
contact with the seal face except the seal
tool. Be sure the stationary is in straight.
Place seal’s (19) retaining ring and spring
over shaft until seated on shaft shoulder.
Slide a bullet tool over rotor shaft threads.

Lightly oil (Do not use grease) shaft,
bullet, and inner surface of bellows on
rotating member, with  nished end away
from motor, slide rotating member over
bullet and onto shaft until it engages
spring.

Make sure spring is seated in retaining
ring and spring is lined up on rotating
member and not cocked or resting on
bellows tail. (See Figure 3)

Motor - Slide rotor/shaft with bearing
(18) and seal parts (19) into intermediate
coupling (21) until bearing seats into
intermediate coupling. Install retaining
ring (39) into intermediate coupling (21).
Place motor stator over rotor, lining up
motor bolts with holes in intermediate
coupling (21). Place end bell on top of
motor and insert motor bolts and torque
to 17 in-lbs.

Set square ring (20) in grove on
intermediate coupling (21). Attach
ground wire (36) to end bell if removed.
Pull wires through opening in top of
motor housing (15) while lowering motor
housing onto intermediate coupling
(21). Connect wires to pins on bottom
of terminal block (37) as noted at
disassembly and/or see wiring digrams in
Figure 7.

Figure 3

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

Lubricate o-ring (9) with dielectric oil
and slide terminal block (37) back into
housing (15). Be sure terminal block is
engaged and install retaining ring (38).
Place cap screws (35) with lockwashers
(11) through housing (15) into
intermediate coupling (21) and tighten.
(See Figure 4)

11

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Service

Figure 4

Power Cable Connection - Check power

cord (3) for cracks or damage and replace
if required. Insert female end of cord
plug into housing bore aligning timing
mark with hole in terminal block (37)
see Figure (5). Compress cord plug with
compression ange by tightening cap
screws (1) with lock washers (2) into the
housing (15). Torque to 132 in-lbs.

Outer Seal - Clean and oil stationary
seal cavity in seal plate (31). Slide seal
guide tool over motor shaft. Lightly
oil (Do not use grease) outer surface
of seal’s (33) stationary member. Press
stationary  rmly into seal plate (31) using
a seal pusher tool. Be sure the stationary
member is in straight. Nothing but the
seal tool is to come in contact with seal
face. (See Figure 6)

IMPORTANT ! Do not hammer
on the seal pusher. It will
damage the seal face.

With seal guide tool over motor shaft,
Lightly oil (Do not use grease) guide,
shaft and inner surface of bellows on
rotating seal. With lapped surface of
rotating member facing inward toward
stationary, slide rotating member over
guide and onto shaft, using seal pusher
tool, until lapped faces of stationary and
rotating seal are together. Place spring
over shaft and rotating member.

Impeller - Place impeller (30) on motor
shaft, with machined step  tting inside
the inside diameter of seal spring, by

turning clockwise while holding shaft
stationary with screwdriver.

Shredding Ring - Install shredding ring
(27) into volute with the use of an arbor
press.

Volute - Place volute (25) on seal plate
(31). Place nuts (41) with lockwashers
(11) onto studs (34) and torque evenly to
11 ft/lbs.

Note: Discharge must line up with notch
in motor housing.

Cutter - Screw radial cutter (29) onto
shaft, turning it clockwise while holding
the shaft stationary with a screwdriver.
The radial cutter (29) should be  ush with
shredding ring (27), on suction side to
within ± .020. Place washer (28) on screw
(40), apply green Loctite on threads and
place into shaft and tighten.

Figure 5

Seal Plate - Lubricate and set square

ring (24) in bottom groove of seal plate
(31). Place seal plate (31) over shaft and
onto intermediate coupling (21), being
sure square ring (24) is not twisted and
in the groove. Place two capscrews (32)
with lockwashers (11) into seal plate and
torque to 6.5 ft/lbs.

Be sure it is seated on the retainer and
not cocked or resting on bellows tail.

Figure 6

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

12

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Pump Wiring Schematics

Figure 7 - 200/230 Volt, 1Phase

Figure 7 - 460 Volt, 3Phase

Figure 7 - 200/240 Volt, 3Phase

1Phase Capacitor & Relay Pack

For Control Panels:
2HP, 200 V, 1 Ph - P/N: PF88243
2HP, 230 V, 1PH - P/N: PF73306

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

13

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Typical Panel Wiring Schematic

14

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

For Repair Part Please supply: Model Number and MFG Date as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.

Repair Parts

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

Figure 8

15

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Repair Parts

For Repair Part Please supply: Model Number and MFG Date as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.

16

Figure 9

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

For Repair Part Please supply: Model Number and MFG Date as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.

Ref. No. Qty Name Used On Part Number

1 2 Cap Screw 5/16-18 x 3/4” Lg., Stainless
2 2 Lockwasher 5/16 Stainless
31
4 1 Pipe Plug Counter Sunk, 3/8” NPT, Stainless
5 2 Cap Screw 5/16-18 x 1-1/4” Lg., Stainless
6 2 Washer 5/16” Stainless
7 1 Discharge Flange PF108369
816O-ring PF2-31051-224

9 1 Handle PF103503
10 2 Cap Screw 5/16-18 x 3/4” Lg., Stainless
11 10 Lockwasher 5/16 Stainless
12 1
15 1 Housing PF105196

17 1

18 1
19 1
20 1
21 1 Bearing Bracket PF108879
22 1 Pipe Plug, 1/4” NPT
23 1 Bronze Insert ---­24 1
25 1 Volute PF108344
26 3 Pump Leg PF110660

27 1

28 1
29 1

30 1

31 1 Seal Plate PF108880
32 2 Cap Screw 5/16-18 x 1” Lg., Stainless
33 1
34 4 Stud 5/16-18 x 2-1/4” Lg., Stainless
35 6 Cap Screw 5/16-18 x 1-1/4” Lg., Stainless

Power Cord, 20 Ft.



O-ring PF2-31051-224

6

200/230 Volt 1 Ph PF110397BG

Motor



Lower Bearing PF10-36-E4

6

Inner Shaft Seal Carbon/Ceramic/Buna-N PF111131

6

Square Ring PF074498

6

Square Ring PF067564

6

Shredding Ring

6

Impeller Washer PF067556

6

Radial Cutter PF082088

6

Impeller



Outer Shaft Seal Carbon/Ceramic/Buna-N PF110395

6

200 Volt, 3 Ph PF067571BG

230/460 Volt, 3 Ph PF067572BG

HV PF082085A
HH PF082085B

HV PF109026B
HH PF109026BTD

Repair Parts




PF109492















 = Aquire standard hardware locally.
 = Cutter Kit

6 = Overhaul Kit

 = Supplied as individual items

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

17

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Repair Parts

Ref. No. Qty Name Used On Part Number

36 1 Ground Wire, 10GA. PF105111A
37 1 Terminal Block PF103586
38 1
39 1
40 1
41 4 Hex Nut 5/16-18, Stainless

Retaining Ring PF105197

6

Retaining Ring PF061143

6

Impeller Screw 1/4-20 x 3/4” Lg., Stainless PF070704

6

For Repair Part Please supply: Model Number and MFG Date as shown on
Name Plate, and Part Description and Part Number as shown on Parts List.



Repair Kits



 = Aquire standard hardware locally.
 = Cutter Kit

CUTTER KIT - Includes Item numbers: 27, 28, 29, 40

OVERHAUL KIT - Includes Item numbers: 8, 12, 18, 19, 20, 24, 27, 28, 29, 33, 38, 39, 40

6

Capacitor Pack for PFG2002HV / HH Panel if other than a Power-Flo panel, 200 volt, 1 phase.
Capacitor Pack for PFG2022HV / HH Panell if other than a Power-Flo panel, 230 volt, 1 phase.

6 = Overhaul Kit

 = Supplied as individual items

PFG2HV-CT

PFG2HH-CT
PFG2HV-OHK
PFG2HH-OHK

PF88243
PF73306

Notes:

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

18

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

Trouble Shooting Chart

Risk of electric shock. Always disconnect the pump from the power source before handling inspections or repairs.

Symptom Possible Cause(s) Corrective Action

Blown fuse or other interruption of
power; improper voltage.

Check that the unit is securely plugged in. Have an
electrican check all wiring for proper connections
and adequate voltage and capacity.

Pump will not run

Pump will not turn o

Pump will not turn o

Pump runs periodically when  xtures are not in use

Switch is unable to move to the “turn ON” position
due to interference with the side of basin or other
obstruction

Insu cient liquid level

Defective level control

Discharge is blocked or restricted

Check valve is stuck closed or installed backwards

Gate or ball valve is closed

Total lift is beyond pump’s capability

Pump impeller is jammed or volute casing is pluged

Level control(s) unable to move to the “turn OFF”
position due to interference with the side of basin
or other obstacle

Defective level control

Check valve is stuck open or is leaking

Fixtures are leaking

Debris in the impeller cavity

Position the pump or switch so that it has adequate
clearance for free operation.

Make sure the liquid level is allowed to rise enough
to activate level control(s).

Remove and replace level controls

Check the discharge line for foreign material,
including ice if discharge line passes through or
into cold areas

Remove check valve(s) and examine for freedom of
operation and proper installation

Open gate or ball valve

Try to route piping to a lower level.
If not possible, a larger pump may be required.
Consult the factory

Disconnect unit electrically. Remove the pump
from the basin. Detach the pump base and clean
the area around the impeller. Rotate impeller by
hand. Reassemble and reinstall

Posistion the pump or level control so that it has
adequate clearance for free operation

Remove and replace level control

Remove check valve(s) and examine for freedom of
operation and proper installation

Repair  xtures as required to eliminate leakage

Remove the pump from the basin.
Detach the pump base and clean the area around
the impeller. Reassemble and reinstall

Pump operates noisily

NOTE: Power-Flo Pumps & Systems assumes no responsibility for damage or injury due to disassembly in the  eld. Disassembly of the pumps or supplied
accessories other than at Power-Flo Pumps & Systems or its authorized service centers, automatically voids warranty.

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

Damaged impeller

Worn bearings

Piping attachments to building are too rigid

Consult the factory for information regarding
replacement of impeller

Return pump to the factory or authorized repair
station for repair

Replace a portion of the discharge line with rubber
hose or connector

19

PFG - HH & HV 2HP Submersible Grinder Pumps

BACK TO INDEX

LIMITED WARRANTY

Manufacturer warrants, to the immediate purchaser and subsequent initial owner during the warranty period,

every new pump to be free from defects in material and workmanship under normal use and service, when properly

used and maintained, for a period of eighteen (18) months from date of manufacture or twelve (12) months from

date of installation (which ever comes  rst). Failure due to wear due to excessive abrasives is not covered. The

initial owner is the purchaser who  rst uses the pump after its initial installation, or for non-permanent installation,

the  rst owner who uses the pump. The date of installation shall be determined by a dated sales receipt noting the

model and serial number of the pump. The dated sales receipt must accompany the returned pump. Product will be

repaired, replaced or remanufactured at Manufacturer’s option. No allowance will be made for shipping charges,

damages, labor or other charges that may occur due to product failure, repair or replacement. This warranty does

not apply to and there shall be no warranty for any material or product that has been disassembled without prior

approval of Manufacturer, subjected to misuse, misapplication, neglect, alteration, accident or act of God; that has

not been installed, operated or maintained in accordance with Manufacturer’s installation instructions; that has

been exposed to outside substances including but not limited to the following: sand, gravel, cement, mud, tar,

hydrocarbons, hydrocarbon derivatives (oil, gasoline, solvents, etc.), or other abrasive or corrosive substances, wash

towels or feminine sanitary products, etc. in all pumping applications. The warranty set out in the paragraph above

is in lieu of all other warranties expressed or implied; and we do not authorize any representative or other person

to assume for us any other liability in connection with our products. Contact Manufacturer at: 1-877-24PUMPS or

www.power opumps.com, Attention: Customer Service Department, to obtain any needed repair or replacement

of part(s) or additional information pertaining to our warranty.

MANUFACTURER EXPRESSLY DISCLAIMS LIABILITY FOR SPECIAL, CONSEQUENTIAL OR INCIDENTAL

DAMAGES OR BREACH OF EXPRESSED OR IMPLIED WARRANTY; AND ANY IMPLIED WARRANTY OF FITNESS

FOR A PARTICULAR PURPOSE AND OF MERCHANTABILITY SHALL BE LIMITED TO THE DURATION OF THE

EXPRESSED WARRANTY.

Some states do not allow limitations on the duration of an implied warranty, so the above limitation may not apply

to you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above

limitation or exclusion may not apply to you. This warranty gives you speci c legal rights and you may also have

other rights which vary from state to state.

Power-Flo Pumps & Systems • 877-24PUMPS • www.power opumps.com

20