Hayward Max-Flo XL User manual

IS2300 Rev-A1
Hayward Pool Products
620 Division St, Elizabeth, NJ 07201
Phone: [phone]
www.haywardpool.com
Max-Flo XL™
by
Owner’s Manual
Max-Flo XL Pump Series
The Hayward Max-Flo XL is a series of high technology self-priming pumps that combine performance, dependability
and value with durable construction. Designed for poolsof all types and sizes,Max-Flo XLfeatures 1 1/2” x 2” union
connections to match a variety of plumbing configurations and a cam and ramp strainer cover that seals with less
than a quarter turn. The Max-Flo XL isan ideal choice for both new construction or as a replacement pump.
NOTE - To preventpotential injury and to avoid unnecessary service calls, read thismanual carefully and completely.
SAVE THIS INSTRUCTION MANUAL

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Page 2 of 20 Max-Flo XL Pump IS2300 Rev-A1
Table of Contents
1. IMPORTANT SAFETY INSTRUCTIONS...............................................................................................................3
2. General Information.................................................................................................................................... 6
2.1. Introduction 6
2.2. Primary Features 6
2.3. Product Dimensions 6
3. Installation and Wiring................................................................................................................................ 6
3.1. Pump Location 6
3.2. Pump Mounting 7
3.3. Pipe Sizing Chart 7
3.4. Plumbing 7
3.5. Electrical 8
3.6. Electrical Specs 8
3.7. Voltage 8
3.8. Grounding and Bonding 8
3.9. Wiring 9
4. Startup & Operation...................................................................................................................................10
4.1. Prior to Start-Up 10
4.2. Starting/Priming the Pump 10
5. Maintenance.............................................................................................................................................. 11
6. Storage /Winterization .............................................................................................................................. 11
6.1. Storing Pump For Winterization 11
7. Shaft Seal Change Instructions...................................................................................................................12
7.1. Removing the Motor Assembly 12
7.2. Removing the Impeller 12
7.3. Removing the Ceramic Seat 12
7.4. Seal Installation 13
7.5. Replacing the Impeller and Diffuser 14
7.6. Replacing the Motor Assembly 14
8. ReplacementParts.....................................................................................................................................15
8.1. Parts Diagram 15
8.2. Parts Listing 15
9. Troubleshooting.........................................................................................................................................16
9.1. General Problems 16
10. Warranty....................................................................................................................................................18
11. Product Registration...................................................................................................................................19

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Page 3 of 20 Max-Flo XL Pump IS2300 Rev-A1
Basic safety precautions should alwaysbe followed, including the following: Failure to follow instructions mayresult in
injury.
This is the safety-alert symbol. When yousee this symbolon your pumpor in this manual, look for one ofthe
following signal words, andbe alert to thepotential for personal injury.
WARNING warns about hazards thatcould cause serious personal injury, death or major property damage
and if ignored presents a potential hazard.
CAUTIONwarns about hazards that will or can cause minor or moderate personal injury and/or property
damage and if ignored presents a potential hazard. It can also make consumers aware ofactions thatare
unpredictable and unsafe.
The NOTICE label indicates special instructions that are important but not related tohazards.
1. IMPORTANT SAFETY INSTRUCTIONS
Before installing or servicing this electrical equipment, turn power supply OFF.
WARNING – Read and followall instructions in this owner’s manual and on the equipment. Failure to
follow instructions can cause severe injury and/or death.
WARNING – This product should beinstalled and serviced onlyby a qualifiedprofessional.
CAUTION – All electrical wiring MUST be in conformance with all applicable local codes, regulations, and
the National Electric Code (NEC).
USE OF NON-HAYWARD REPLACEMENT PARTS VOIDS WARRANTY.
ATTENTION INSTALLER - THIS MANUAL CONTAINS IMPORTANT INFORMATION ABOUT THE INSTALLATION,
OPERATION, AND SAFE USE OF THIS PUMP THAT MUST BE FURNISHED TO THE END USER OF THIS PRODUCT.
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS COULD RESULT IN SERIOUS INJURY.
WARNING – To reduce risk of injury, do not permit children to use or climb on this product. Closely
supervise children at all times. Components such as thefiltrationsystem, pumps, andheaters mustbe positioned
to prevent children from using them asa meansof access to the pool.
CAUTION – This pump is intended for use on permanently installed swimming pools and mayalso be used
with hot tubs and spasif so marked. Do NOT use with storablepools. A permanently installed pool isconstructed in
or on the ground or in a building such that it cannot be readily disassembled for storage. A storable pool is
constructed so that it is capable of being readily disassembled for storage and reassembled to its original integrity.
Though thisproduct is designedfor outdoor use, it is strongly advised to protect the electrical components fromthe
weather. Select a well-drained area, one that will not flood whenit rains. It requires free circulation of air for
cooling. Do not install in a damp or non-ventilated location. If installed within an outer enclosure orbeneath the
skirt of a hot tub or spa, adequate ventilation and free circulation of air must beprovided to prevent overheatingof
the motor.

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Page 4 of 20 Max-Flo XL Pump IS2300 Rev-A1
WARNING – Pool andspa components (seals,gaskets, etc.) havea finite life. Allcomponents should be
inspected frequently and replaced at least every ten years, or if found to be damaged, broken, cracked, missing, or
not securely attached.
WARNING – Risk of Electric Shock. All electrical wiring MUST be in conformance with applicable local
codes, regulations, and the National Electric Code (NEC). Hazardous voltage can shock, burn, and cause death or
serious property damage. Toreduce the risk of electric shock, do NOT use an extension cord to connect unit to
electric supply. Provide aproperly locatedelectricalreceptacle. Before working onpump or motor, turn off power
supply to the pump.
WARNING – To reduce the risk of electric shock replace damaged wiring immediately. Locate conduit to
prevent abuse from lawn mowers, hedge trimmers and other equipment.
WARNING – Risk of Electric Shock. In accordance with the National Electric Code (NEC), connect only to a
branch circuit protected by aground-fault circuit-interrupter (GFCI). Contact aqualified electrician if you cannot
verify that thecircuit is protected by a GFCI. The unit must be connected only to a supply circuit that is protectedby
a ground-fault circuit-interrupter (GFCI). Such a GFCI should be provided by the installer and should be tested on a
routine basis. To test the GFCI,push the test circuit button. The GFCI should interrupt power. Push the reset button.
Power should be restored. If the GFCI fails to operate in this manner, the GFCI is defective. If the GFCI interrupts
power to the pumpwithout the test button being pushed, a ground current is flowing, indicating the possibility of an
electric shock. Do not use this pump. Disconnect the pump and have the problem corrected by a qualified service
representative before using.
WARNING – Failure to bond pump to pool structure will increase risk for electrocution and could result in
injury or death. To reduce the risk of electric shock, see installation instructions and consult a professional
electrician onhow to bondpump. Also, contact a licensed electrician for information on local electrical codesfor
bonding requirements.
Notes to electrician: Use a solid copper conductor, size 8 or larger. Run a continuous wire from external bonding
lug to reinforcing rod or mesh. Connect a No. 8 AWG (8.4 mm2) [No. 6 AWG (13.3 mm2) for Canada] solid copper
bonding wire to the pressure wire connector provided on the pump housing and to all metal parts of swimming pool,
spa, or hot tub, andto all electrical equipment, metal piping (exceptgas piping), and conduitwithin 5 ft. (1.5 m) of
inside walls of swimming pool, spa, or hot tub. IMPORTANT- ReferenceNEC codesfor all wiring standards including,
but not limited to, grounding, bonding and other generalwiring procedures.
WARNING – Suction Entrapment Hazard. Suction in suction outlets and/or suction outlet covers, which
are damaged, broken, cracked, missing, or unsecuredcause severe injury and/or death due to thefollowing
entrapment hazards (symbols complements of APSP):
Hair Entrapment - Hair can become entangled in suction outlet cover.
Limb Entrapment - A limb inserted into anopening of asuction outlet sump or suction outlet cover that isdamaged,
broken, cracked, missing, or not securely attached can result in a mechanical bind or swelling ofthe limb.
Body Suction Entrapment - A differential pressure applied to a large portion of the body or limbs can result in an
entrapment.
Evisceration/ Disembowelment - A negative pressure applied directly to the intestines through an unprotected
suction outlet sump or suction outlet cover which is damaged,broken, cracked, missing, or unsecured canresultin
evisceration/disembowelment.
Mechanical Entrapment - There is potential forjewelry,swimsuits, hair decorations, fingers, toes, orknuckles tobe
caught in anopening of a suction outlet cover resulting in mechanical entrapment.

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Page 5 of 20 Max-Flo XL Pump IS2300 Rev-A1
WARNING – To Reduce the risk of EntrapmentHazards:
When outlets are small enough to be blocked bya person, a minimum of twofunctioning suction outlets per
pump must be installed. Suction outlets in the sameplane (i.e. floor or wall),must be installed aminimum of
three feet (3’) [0.91 meter] apart, as measured from near point to near point.
Dual suction fittings shall be placed in such locations and distances to avoid “dual blockage” by auser.
Dual suction fittings shall not be locatedon seatingareas or on thebackrest for such seating areas.
The maximum system flow rate shall not exceed the values shown in the “Pipe Sizing Chart” found in section
3.3 below.
Never use pool or spa if any suction outlet component is damaged, broken, cracked, missing, or not securely
attached.
Replace damaged, broken, cracked, missing, or not securely attached suction outlet components
immediately.
In addition to two or more suction outlets per pump installed in accordance with latest APSP standards and
CPSC guidelines, follow all national, state, and localcodes applicable.
Installation of a vacuum release orvent system, which relieves entrapping suction, isrecommended.
WARNING – Hazardous Pressure. Pool and spa water circulation systems operate under hazardous
pressure during start-up, normal operation, and after pump shut-off. Stand clear of circulation system equipment
during pump start-up. Failure to follow safety andoperation instructions could result in violent separation of the
pump housing andcover due topressure in the system,which couldcause property damage,severe personal injury,
or death. Before servicing pool and spawater circulation system, all system and pump controls mustbe in off
position and filter manualair relief valve must be in openposition. Before starting pump,all system valves mustbe
set in a position to allow system water to returnback to the pool. Do not change filter controlvalve position while
pump is running. Before starting pump, fully open filtermanual air relief valve. Do not close filter manual air relief
valve until a steady stream of water(not air or airand water mix) is discharged fromthe valve. All suction and
discharge valves MUST be OPEN when starting the circulation system. Failure to do so could result in severe
personal injury and/or property damage.
WARNING – Separation Hazard. Failure to follow safety and operation instructions could result in violent
separation of pump components. Strainer cover must be properly secured to pump housing with strainer cover lock
ring. Before servicing pool and spa circulation system, all system and pump controls must be in offposition and
filter manual air relief valve must be in open position. Do not operate pool and spa circulation system if a system
component is not assembledproperly, damaged, or missing. Do not operate pool and spa circulation system unless
filter manual air relief valvebody is in locked position in filter upper body. All suction and discharge valves MUSTbe
OPEN when starting the circulation system. Failure to do so could result in severe personal injury and/or property
damage.
WARNING – Never operate the circulation system at more than 50 PSI maximum.
WARNING – Fire and burn hazard. Motors operate at high temperatures andif they are not properly
isolated from anyflammable structures or foreign debristhey cancause fires, which may cause severe personal
injury or death. It is alsonecessary to allow themotor to cool for at least 20 minutes prior to maintenance to
minimize the risk for burns.
WARNING – Failure to install according to defined instructions may resultin severe personal injury or
death.

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Page 6 of 20 Max-Flo XL Pump IS2300 Rev-A1
2. General Information
2.1. Introduction
This manual contains information for the proper installation and operation of the Hayward Max-Flo XL Series. The
instructions inthis manualMUST be followed precisely. Failure to install according to defined instructions will
void warranty.
2.2. Primary Features
Aligns with the original Max-Flo pump for seamlessretrofit installations.
Advanced hydraulics for increased efficiency and priming ability.
All models include 11/2” x 2” unionconnections.
See-through strainer cover lets you see when the basketneeds cleaning and seals with less thana quarter turn.
Pressure testable to 50 psi maximum.
Optional riser base available to align with Sta-Rite® Dyna-Pro®.
Self-priming (suction lift up to 8’ above water level)
2.3. Product Dimensions
3. Installation and Wiring
WARNING – This product should beinstalled and serviced onlyby a qualifiedprofessional.
3.1. Pump Location
Locate pumpas close topool as practical and run suction lines as direct as possible to
reduce friction loss. Pump height location should be as close to pool water level as
possible and NOT to exceed 8 feet. Suction lines should have continuous slope upward
from lowest point in line. Joints must be tight (but not over-tightened). Suction line
diameter must equal or be larger than the discharge line diameter.
Single Speed
HP Dim "A"
0.75 10.8"
1 11.3"
1.5 12.4"
2 12.5"
Dual Speed
HP Dim "A"
1 12.0"
1.5 12.5"
2 13.0"

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Page 7 of 20 Max-Flo XL Pump IS2300 Rev-A1
Though the pump is designed for outdoor use,it is advised to placepump and filter in the shadeto shield them from
continuous direct heat. Select a well-drained area thatwill not flood when it rains. Do NOT install pump andfilter in
a damp or non-ventilated location. Keep motor clean. Pump motors require free circulation of air for cooling.
3.2. Pump Mounting
Install pump on a level concrete slab or other rigid base to meet all local and national codes. Secure pump tobase
with screws or bolts to further reduce vibration and stress on pipe or hose joints. The base must be level, rigid, and
vibration free.
Pump mount must:
Allow pump inlet height to be as close to water levelas possible.
Allow use of short, direct suction pipe (to reduce friction losses).
Allow for valves in suction and discharge piping.
Be protected from excess moisture and flooding.
Allow adequate access for servicing pump and piping.
3.3. Pipe Sizing Chart
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE
Pipe Size
in. [mm]
Maximum Flow Rate
GPM [LPM]
Minimum Suction Pipe
Length* in. [mm]
1” [32]
20 [75]
5” [127]
1 ¼” [40]
30 [110]
6 ¼” [159]
1 ½” [50]
45 [170]
7 ½” [190]
2” [63]
80 [300]
10” [254]
2 ½” [75]
110 [415]
12 ½” [317
]
3” [90]
160 [600]
15” [381]
* Note: It is recommended that a minimum length of straight piping (shown as“L” in above diagram), equivalentto 5
pipe size diameters, be used between the pump suctioninlet and any plumbing fittings (elbows, valves, etc.).
WARNING – Hazardous Pressure. Pumps, filters, and other equipment/ components of a swimming pool
filtration system operate under pressure. Incorrectly installed and/or improperlytested filtration equipment and/or
components mayfail resulting in severe personal injury or death.
3.4. Plumbing
1. Use Teflontape to seal threaded connections on molded plastic components. Allplastic fittings must be new or
thoroughly cleaned before use. NOTE - Do NOT use Plumber’s Pipe Dope as it may cause cracking of the plastic
components. When applying Teflon tape to plastic threads, wrap the entire threaded portion of the male fitting
with one to two layers of tape. Wind the tape clockwiseas you face the open end of the fitting, beginning at the
end of the fitting. The pump suction and outlet ports have molded-in thread stops. Do NOT attempt to force
hose connector fitting past this stop. It is only necessary to tightenfittings enough to prevent leakage. Tighten
fitting by hand and then use a tool to engage fitting an additional 1 ½ turns. Use care when using Teflon tape as
friction is reducedconsiderably; doNOT over-tighten fitting or you maycause damage. If leaks occur, remove
connector, clean off old Teflon tape, re-wrap with one to two additional layers of Teflon tape, and re-install
connector.
2. Fittings (elbows, tees, valves, etc.) restrictflow. For better efficiency, use the fewestpossible fittings. Avoid
fittings that could cause an air trap. Pool and spa fittings MUSTconform tothe International Association of
Plumbing and Mechanical Officials (IAPMO) standards.

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Page 8 of 20 Max-Flo XL Pump IS2300 Rev-A1
3.5. Electrical
WARNING – All electrical wiring MUST conformto local codes, regulations, and the National Electric Code
(NEC).
WARNING – Ground and bond pump before connecting to electrical powersupply. Failure to ground and
bond pump cancause serious orfatal electrical shock hazard. Do NOTground to agas supply line. To avoid
dangerous or fatal electrical shock, turn OFF power to pump before working on electrical connections. Fire Hazard -
match supply voltage to pump nameplate voltage. Insure that the electrical supply available agrees with the pump’s
voltage, phase, andcycle, and that the wire size isadequate for the ampsrating and distancefrom the power
source. Use copper conductors only.
3.6. Electrical Specs
Use copper conductors only. For indoor & outdoor use.
PUMP MODEL
TOTAL HP
RATED HP
VOLTAGE
AMPS
SP23
05X7
0.95
0.75
115 / 208
-
230
10.0 / 6.0
-
5.0
SP23
05X7EE
0.95
0.75
115 / 208
-
230
9.2 / 4.7
-
4.6
SP2305X7EESP
0.95
0.75
1
15 / 208
-
230
9.2 / 4.7
-
4.6
SP23
07X10
1.25
1.00
115 / 208
-
230
13.3 / 6.9
-
6.8
SP23
07X102
1.25 / 0.20
1.00 / 0.16
230
6.1 / 2.1
SP23
10X15
1.65
1.50
115 / 208
-
230
16.5 / 9.2
-
8.5
SP23
10X152
1.65 / 0.27
1.50 / 0.25
230
7.7 / 2.8
SP23
15X20
2.10
2.00
115 / 20
8
-
230
17.4 / 10.6
-
8.8
SP23
15X202
2.20 / 0.36
2.00 / 0.33
230
10.0 / 3.0
3.7. Voltage
Voltage at pump MUST NOT be more than 10% above or below nameplate rated voltage, or components may
overheat, causing overload tripping andreduced component life. If voltage is less than 90%or more than110%of
rated voltage when pump is running at full load,consultthe power company.
3.8. Grounding and Bonding
1. Install, ground, bond, and wire pump in accordance with local or national electrical code requirements.
2. Permanently ground pump. Use green ground terminal provided under access plate; use size and type wire
required bycode. Connectground terminal to electrical serviceground.
3. Bond pump topool structure. Bonding will connect all metal parts within and around the poolwith a continuous
wire. Bonding reduces the risk of acurrent passing between bonded metal objects, which could potentially
cause electrical shock if groundedor shorted. Reference NECcodes for all wiring standards including, but not
limited to, grounding, bonding andgeneral wiring procedures.
4. Use a solid copperconductor,size 8 or larger. Run wire fromexternal bonding lug to reinforcing rod or mesh.
Connect a No. 8 AWG (8.4 mm2) [No. 6 AWG (13.3 mm2)for Canada]solid copper bonding wire to the pressure
wire connector providedon the motor housing and to allmetal parts of swimmingpool, spa, or hot tub, and to
all electricalequipment, metal piping (except gaspiping), andconduit within 5 ft.(1.5 m) of insidewalls of
swimming pool, spa, orhot tub.

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Page 9 of 20 Max-Flo XL Pump IS2300 Rev-A1
3.9. Wiring
WARNING – All electrical wiring MUST conformto local codes,regulations and the National Electric Code
(NEC).
Pump MUST be permanently connected to circuit. If other lights or appliances are also on the same circuit, be sure
to add their amp loads before calculating wire and circuit breaker sizes. Use the load circuit breaker as the Master
On-Off switch.
WARNING – If you do not useconduit when wiring motor, be sure to seal wire opening on end of motor to
prevent dirt, bugs, etc., from entering.
Risk of dangerous or fatal electrical shock. Be sure that power to the motor circuit is off before working on
wiring, wiring connections, or motor. Re-install the motor end cover and all other wiring covers before
turning on the power.
1. Turn off power.
2. Remove the motor end cover.
To Wire a Single Speed, Single Voltage Motor
There aretwo terminals labeled L1 and L2. Attach the power leads to these terminals. Either wire may attach to
either terminal.
To Wire a Dual-Voltage Motor
Dual voltage motors have a plug to change from 230 volts (factory setting) to 115 volts.
1. If you have230 voltsmotor supply voltage, confirm that the plug is set for 230 volts. The arrowon the plug
will pointto the 230 voltposition. Note thatplug onlyconnects with one prongin this position. See Fig 3.9.1
2. If youhave 115volt supply, pull theplug straight up & place it on the two brass prongs as shown. See Fig 3.9.2
Voltage change plug set for 230 volts Voltage change plug set for 115 volts
Fig 3.9.1 Fig 3.9.2
Note: Large white arrow is for reference only.

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Page 10 of 20 Max-Flo XL Pump IS2300 Rev-A1
To Wire a Two-Speed Motor
Wire the pump as shown in the diagram below. See Fig 3.9.3
Fig 3.9.3
4. Startup & Operation
4.1. Prior to Start-Up
If it is necessary to perform a water pressure test prior to initial use to ensure plumbing system is functioning
properly, thenthe following criteria should be maintained for this test:
1. Have a professional perform this test.
2. Ensure all Hayward pump and system components are removed from system prior to performing test.
WARNING – If circulation equipment must remain inthe plumbing system during waterpressure test, do
not applymore than 10psi pressure to the system. Be sure water pressure hasbeen released, usingthe filter
manual air relief valve, before removing pump strainer cover.
WARNING – All suction and discharge valves MUST be OPEN, as well as filter air relief valve (if available) on
filter, when starting the circulating pump system. Failure to do so could result in severe personal injury.
4.2. Starting/Priming the Pump
Pumps with single speed motors are self priming to8 ft.and pumps with2 speed motors areself primingto 8 ft.on
high speed only. Rotate strainer cover counter clockwise to remove. Fill strainer housing with water to suction
pipe level. Replace strainer cover, rotate clockwise and hand tighten. If water leakage occurs from anywhere on the
pump or filter, DO NOT start the pump. If no leakage occurs, stand at least 10 feetfrom pump and/or filter and
proceed with starting the pump.
WARNING – Return tofilter toclose filter manual airreliefvalve when asteady stream of water (notair or air
and water) is discharged from valve. Failure to doso could result in severepersonal injury.
ATTENTION – NEVER OPERATE THE PUMP WITHOUT WATER. Water acts as acoolant and lubricant for the
mechanical shaft seal. NEVERrun pump dry. Running pump dry may damage seals,causing leakage, flooding, and
voids warranty. Fill strainer housing with water before starting motor.
ATTENTION – Do NOT addchemicals topool/spa system directly infront of pump suction. Adding
undiluted chemicals may damage pump and voids warranty.
ATTENTION – Before removing strainer cover:
1. STOP PUMP before proceeding.
2. CLOSE VALVES in suction and outlet pipes.

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Page 11 of 20 Max-Flo XL Pump IS2300 Rev-A1
3. RELEASE ALL PRESSURE from pump and piping system using filter manual air relief valve. See filter owner’s
manual for more details.
4. If water source is higher thanthe pump,pump will primeitself whensuction and outletvalves are opened. If
water source is lower than the pump, unscrew and remove strainer cover; fill strainer housing with water.
5. Clean and lubricate strainer cover O-ring with "Jack's 327" if necessary.
6. Replace strainercover on strainer housing; turn clockwise to tightencover.
NOTE - Tighten strainer cover lock ring by hand only (no wrenches).
Turn on power and wait for pump to prime,which cantake up tofifteen (15)minutes. Priming time willdepend on
vertical length of suction lift and horizontal length of suction pipe. If pump does NOT prime within 15 minutes, stop
motor anddetermine cause. Be sure all suction and discharge valves are open when pump is running. See
Troubleshooting Guide.
5. Maintenance
Clean strainer basket regularly. Do NOT strike basket toclean. Inspect strainer cover gasket regularly and replace as
necessary.
Hayward pumps have self-lubricating motor bearings and shaft seals. No lubrication is necessary.
Keep motor clean. Insure motor air vents are free from obstructionto avoid damage. Do NOT use water to hose off
motor.
Occasionally, shaft seals must be replaced, dueto wearor damage. Replace with genuine Hayward seal assembly
kit. See “Shaft Seal Change Instructions” in this manual.
6. Storage / Winterization
WARNING – Separation Hazard. Do not purge the system with compressed air. Purging the system with
compressed air can cause components to explode, with risk of severe injury or death to anyone nearby. Use only a
low pressure (below5 PSI), high volume blower whenair purging the pump,filter, or piping.
ATTENTION – Allowing the pumpto freeze with water in it will voidthe warranty.
ATTENTION – Use ONLY propylene glycol as antifreeze in your pool/spa system. Propylene glycol is non-
toxic and will not damage plastic system components; other anti-freezes are highly toxic and may damage plastic
components in the system.
Drain all water from pump and piping when expecting freezing temperatures or when storing pump for a long time
(see instructions below). Gravity drain systemas far aspossible.
Keep motor dry and covered during storage. To avoid condensation/corrosion problems, do NOT cover or wrap pump
with plastic film or bags.
6.1. Storing Pump For Winterization
WARNING – To avoid dangerous or fatal electrical shock hazard, turn OFF power to motor before draining
pump. Failure to disconnect power may result in serious personal injury or death.
1. Drain water level belowall inlets to the pool.
2. Remove drain plugs and strainer cover from strainer housing. (See “Parts Diagram” in section 8.1 of this manual
for pump component locations.)
3. Disconnect pump from mounting pad, wiring (after power has been turned OFF), and piping.
4. Once the pump is fully drained of water, re-install the strainer cover and drain plugs. Store pump in a dry area.

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Page 12 of 20 Max-Flo XL Pump IS2300 Rev-A1
7. Shaft Seal Change Instructions
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ AND FOLLOW ALL INSTRUCTIONS
When servicing electrical equipment, basic safety precautions should always be observed includingthe following.
Failure tofollow instructions mayresult in injury.
WARNING – To reduce risk of injury, do not permit children to use this product.
Disconnect all electrical power service to pump before beginning shaft seal replacement.
Only qualified personnel should attemptrotary seal replacement. Contact your local authorizedHayward Dealer or
service center if you have any questions.
See “Parts Diagram” Figure 8.1-1 for pump component locations.
Exercise extreme care in handling both the rotating and the stationary sections of the two-part replacement seal. Foreign
matter or improper handling will easily scratch the graphite and ceramic sealing surfaces.
7.1. Removing the Motor Assembly
1. Remove the four (4) 5/16" x 1 3/4" hex head bolts (item #6) which hold the motor assembly to the pump/strainer
housing (item #4), using a½” wrench or socket.
2. Slide the motor assembly out of the pump/strainer housing (item #4), exposing the diffuser(item #9). Remove
the three(3) diffuser screws (item #7) and pull the diffuser off of the seal plate(item #13) to expose the impeller
(item #10).
7.2. Removing the Impeller
3. Remove the motor end cover/canopy byremoving the two (2) screws and pulling off the cap/canopy away from
the motor.
4. To prevent motor shaft from turning, carefully slide a 7/16" open-end wrench between the capacitor and the
centrifugal switch (the wrench fits over the two (2) flats on the motor shaft).
5. Rotate the impeller (item#10) counterclockwise andremove. The springportion of the seal assembly(item #12)
is now exposed. Note carefully the position of the spring seal, and remove it. NOTE- Replace motor cover to
protect delicate motor parts.
7.3. Removing the Ceramic Seat
6. Remove the seal plate (item #13) from the motor by removing the four (4) 3/8” x 1” (item #14) that secure it to the
motor, using a 9/16” wrench or socket.
7. Press the ceramic seat with rubber cup out of the seal plate. If tight, use a small screwdriver to tap seal out.
See Fig 7.3.1
STOP - Clean all recesses & parts to bereassembled. Inspect gaskets & replace if necessary.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 13 of 20 Max-Flo XL Pump IS2300 Rev-A1
7.4. Seal Installation
8. Clean and lightly lubricate the motor shaft andseal recess in the sealplate (item#13) with a dilute solution of
.non-granulated liquid-type soap. Gently wipe the polished surface of the ceramic seal with a clean, soft, cotton
cloth. Lubricate the rubber cup on the ceramic seat andpress it firmly and evenly into the recess of the seal
plate (item #13)with thepolished side of the ceramic facing out.
9. Assemble the motor to the seal plate (item #13) with the four (4) 3/8” bolts (item #14). Torque bolts to 100 in-lbs.
10. Gentlywipe the black, polished surface of thespring seal assembly with aclean, soft, cotton cloth.
11. Press the spring seal assembly(item #12) onto the motor shaft – black polished surfacefacing toward the
polished surface of the ceramic seat. See Fig 7.4.1
MECHAN
ICAL SEAL
CERAMIC SEAT
POSITION
RUBBER
SURFACE DOWN
POSITION
POLISHED
CERAMIC SURFACE UP
Fig 7.3.1
Fig 7.4.1

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 14 of 20 Max-Flo XL Pump IS2300 Rev-A1
7.5. Replacing the Impeller and Diffuser
11. Screw the impeller (item#10) onto the motor shaft in a clockwise direction. Tighten snugly by holding motor
shaft with wrench as notedin step#4.
12. Place thediffuser (item#9) over the impeller(item#10) onto the sealplate (item#13), aligningthe three (3)
protruding pins with the matching holes in the seal plate (item#13). Note: Flat side of diffuser rim (item #9) will
face up. Replace three (3) diffuser screws (item #7), Torque screws to 20 in-lbs.
7.6. Replacing the Motor Assembly
13. Re-attach motor endcover/canopy by using the two(2) hex shapedscrews. Slide the motor assembly with the
diffuser (item#9) inplace, into pump/strainer housing (item#4), being careful not to disturb the diffuser o-ring
(item#8).
14. Re-attach assembly to pump/strainer housing (item#4) using the four (4) 5/16”" x 1 3/4" hex head bolts. (Be
sure housing o-ring (item#11) is in place, and lubricated. Replace if damaged). Tighten alternately and evenly to
185 in-lbs using torque pattern in the following diagram.
HOUSING BOLT TORQUE PATTERN
Fig 7.6.1

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 15 of 20 Max-Flo XL Pump IS2300 Rev-A1
8. Replacement Parts
8.1. Parts Diagram
Figure 8.1-1
8.2. Parts Listing
Ref.
No. Part No. Description Qty.
1
A
SPX23
00DL
S
Strainer Cover Kit (Includes Strainer Cover,Lock
-
Ring, O
-
Ring)
1
1B
SPX23
00DL
S
B
Strainer Cover Kit for Biguanide Sanitizers (Includes Strainer Cover, Lock
-
Ring,
O-Ring) NOT Pressure Testable
1
2
SPX23
00Z4
Strainer Cove
r O
-
Ring
1
3
SPX23
00M
Strainer Basket
1
4
SPX23
00AA
Pump Strainer Housing
with
Drain Plugs
1
5
SPX4000FG
Drain Plug with O
-
Ring
2
6
SPX2700ZPAK
Hardware Pack (Includes 4 Housin
g Bolts, Seal
-
Plate Spacers &
Square Nuts
1
7
SPX23
00Z3
PAK3
Diffuser Screw
s
(3 Pack)
1
8
SX220Z2
Diffuser O
-
Ring
1

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 16 of 20 Max-Flo XL Pump IS2300 Rev-A1
Ref.
No. Part No. Description Qty.
9
SPX23
00B
Diffuser
1
10
SPX2700C
Impeller for ¾ HP Max
-
Rate Pump
1
SPX2700CSP
Impeller for Pump model SP2305X7EESP
1
SPX2707CM
Impeller for 1 HP Max
-
Rate Pump
1
SPX2710CM
Impeller for 1 ½ HP Max
-
Rate Pump
1
SPX2715CM
Impeller for 2 HP Max
-
Rate Pump
1
11
GMX600F
Housing O
-
Ring
1
12
SPX2700SA
Shaft Seal Assembly
1
13
SPX23
00E
Seal Plate
1
14
SPX3200Z5
PAK4
Motor Bolt
(4 Pack)
1
15
SPX23
00G
Motor Support
with Base Mount Screws
1
16
SPX1600Z52
Motor Supp
ort Base Mount Screws
1
17
SP
X
2700UNKIT
Union ConnectorKit (Includes2 Nuts, Connectors, Gaskets)
1
OPTIONAL
18
SP
X
2300GR
Optional Riser Base Aligns with Sta
-
Rite
®
Dyna
-
Pro
®
1
MOTORS
SPX2705Z1M
Motor, ¾ HP, Threaded Shaft (Single Phase, 60 Cyc
le 115V/
208
-
230V)
1
SPX2705Z1ME
Motor, ¾ HP, Energy Eff. Threaded Shaft (Single Phase, 60 Cycle 115/208
-
230V)
1
SPX2707Z1M
Motor, 1 HP, Threaded Shaft (Single Phase, 60Cycle 115/
208
-
230V)
1
SPX2710Z1M
Motor, 1
-
1/2 HP, Threaded Shaft (Single Phase, 6
0 Cycle115/
208
-
230V)
1
SPX2715Z1ME
Motor, 2 HP,
Energy Eff.,
Threaded Shaft (Single Phase, 60 Cycle 115/
208
-
230V)
1
SPX2707Z2M
Motor, 1 HP, Two Speed, ThreadedSh
aft(Single Phase, 60 Cycle
230V)
1
SPX2710Z2M
Motor, 1
-
1/2 HP,Two Speed, Threaded Sh
a
ft (Single Phase, 60 Cycle
230V)
1
SPX2715Z2M
Motor, 2 HP, Two Speed, Threaded Sh
aft (Single Phase,60 Cycle
230V)
1
9. Troubleshooting
9.1. General Problems
Motor Will NOT Start:
1. Make sure the terminal boardconnections agree with the wiringdiagram on the pump dataplate label.
2. Be sure the pump is wired forthe available fieldsupply voltage.
3. Check for and correct any improper or loose wiring connections; open switches or relays; tripped circuit
breakers, or blown fuses.
4. Manually check rotation of the motor shaft for free movement and lack of obstruction. Correct if necessary.
Motor Shuts OFF:
1. Check for low voltage or power drop at the motor (frequently caused by undersized wiring). Contact a
qualified professional to verify the electrical connections and that the voltage is within +/- 10% of the motor
nameplate voltage rating.
Motor Hums, But Does NOT Start:
1. Check power supply voltage. Contact a qualified professional if the voltage is more than 10% lower than the
motor nameplate voltage rating.
2. Impeller jammed with debris. Have a qualified repair professional open the pump and remove the debris.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 17 of 20 Max-Flo XL Pump IS2300 Rev-A1
Pump Won't Prime:
1. Empty pump/strainer housing. Make sure the pump/strainer housing is filled withwater & thecover o-ring
is clean. Ensure the o-ring is properly seated in the cover o-ring groove. Ensure the o-ring sealing surface is
lubricated with “Jack’s 327” and that the strainer cover is locked firmly in position. Lubricant will help to
create a tighter seal.
2. Loose connections on the suction side. Tighten the pipe/union connections.
NOTE - Any self-priming pump will not prime if there are suction air leaks. Leaks will result in bubbles
emanating from the return fittings on the poolwall.
3. Leaking O-ring or packing glands on valves. Tighten,repair, or replace the valves.
4. Strainer basket or skimmer basket loaded with debris. Remove the strainer housing cover or the skimmer
cover. Clean the basket, and refill the strainer housing with water. Tighten the cover.
5. Suction side clogged. Contact a qualified repairprofessional. You shouldhave 5” - 6” of vacuum at the
strainer cover (your pool dealer canconfirm this with avacuum gauge). You maybe able to check by
removing the skimmer basket and holding an object over the bottom port with the skimmer full and the
pump running. If no suction is felt, check for line blockage.
a. If the pump develops a vacuum, check for a blocked suction line or a dirty strainer basket. An air
leak in the suction piping may be the cause.
b. If the pump does not develop a vacuum and the pump has sufficient “priming water”:
i. Re-check the strainer housing cover and all threadedconnections for suction leaks. Check
if all system hose clamps are tight.
ii. Check voltage to ensure that the motor is rotating at full rpm’s.
iii. Open the housing cover and check for clogging or obstruction in suction. Check the
impeller for debris.
iv. Remove and replace the shaft seal only if it is leaking.
Low Flow – Generally:
1. Clogged or restrictedstrainer orsuction line. Clean skimmer strainer basket and/or pump strainer basket.
Contact a qualified repair professional.
2. Undersized pool piping. Correct the piping size.
3. Plugged or restricted discharge line of filter, valve partially closed (high gauge reading). Sand filters –
backwash as per manufacturer’s instructions; D.E. filters – backwash as per manufacturer’s instructions;
Cartridge filters – clean or replace the cartridge.
4. Air leak in suction (bubbles issuing fromreturn fittings). Re-tighten the suction and discharge connections
using Teflon tape. Inspect other plumbing connections, and tighten as required.
5. Plugged, restricted, ordamaged impeller. Replace the impeller including a newseal assembly.
Noisy Pump:
1. Air leak in suction piping, cavitations caused by restricted or undersizedsuction line or leak at any joint, low
water level in pool, and unrestricted discharge return lines. Correct the suctioncondition or throttle return
lines, if practical. Holding your handover the returnfitting willsometimes prove this,or by putting in a
smaller eyeball fitting.
2. Vibration due to impropermounting, etc. Mountthe pump on a levelsurface andsecure the pump to the
equipment pad.
3. Foreign matter in the pump housing. Loose stones/debris hitting the impeller could be the cause. Clean the
pump housing.
4. Motor bearings can become noisy from normal wear, rust, overheating or concentration of chemicals. If the
motor bearing seal is damaged from leaks, chlorinated water can seep into bearing washing out the grease
and couldcause the motor bearing towhine. Replace the motor and any seal leaks should berepaired at
once by replacing the shaft seal.
5. Place pump closer to water level.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 18 of 20 Max-Flo XL Pump IS2300 Rev-A1
10. Warranty

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Page 19 of 20 Max-Flo XL Pump IS2300 Rev-A1
DATE OF INSTALLATION ____________________
INITIAL PRESSURE GAUGE READING (CLEAN FILTER) _______________________
PUMP MODEL __________________
11. Product Registration
*Retain this Warranty Certificate in a safe and convenient location for yourrecords

is a registered trademark of Hayward Industries, Inc.
2011 Hayward Industries. All rights reserved.
Please Print Clearly:
First Name____________________ Last Name_________________________
Street Address__________________________________________________
City_____________________________ State___________ Zip____________
Phone Number_____________________ Purchase Date_________________
E-Mail Address__________________________________________________
Serial
Number
(10-17 digit number)
Model Number_____________________________________________________
Pool Capacity_______________(U.S. Gallons)
Please include me on all e-mail communications regarding Hayward Equipment or promotions.
Mail to: Hayward Pool Products, 620Division Street, Elizabeth, NJ 07207
Attn: WarrantyDept
Or REGISTER YOUR WARRANTY ON-LINE AT WWW.HAYWARDPOOL.COM
DETACH HERE:
Fill out bottom portion com
ple
tely and mail within 10 days
of purchase/installation or register online.
----------------------------------------------------------------------------------------------------------------------------
Max
-
Flo XL
™
Pump
Warranty Card Registration
Years Pool has been in service
< 1 year 1-3 4-5 6-10 11-15 >15
Purchased from_____________________________
Builder Retailer Pool Service Internet/Catalog
Company Name_________________________________
Address_______________________________________
City____________________ State_____ Zip__________
Phone_________________________________________
Type of Pool:
Concrete/Gunite Vinyl Fiberglass
Other_____________________________
New Installation Replacement
Installation for:
In Ground Spa