Nautilus MX3-500 Operating Manual

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REVISED:

01-29-

2015

MX3

500

Nautilus Operating Manual

Nautilus MX3-500 Operating Manual

TABLE OF CONTENTS

TOPIC PAGE #

• Introduction 3

• Technical Specifications 4

• Optional Equipment 5

SECTION 1: Operational Safety

• Electrical Safety 6

• Mechanical Safety 7

SECTION 2: Operation Procedures

• Vacuum Connections 8

• Electrical Supply 9

• Water Supply & Chemicals 10

• Solution Hose & Pump Priming 13

• Heater & Vacuum Hose 14

• Foam Downer 15

• Pump-Out System 16

• Pressure Adjustments 17

• Shutdown Procedures 18

• Accessory Storage 19

• Troubleshooting 20

• Solution Flow Path 23

• Wiring Diagrams 24

SECTION 3: Maintenance/ Technical

• Maintenance 27

• Drawings & Parts Lists

o Pump 36 o Pressure Regulator 37 o Auto-Fill 38 o Pump-Out Pump 40 o Parts Pictures 41 o Parts List 52 o Hose List 55

• Warranty 56

Introduction

Congratulations on your purchase of the Hydro-Force Nautilus MX3-500. The MX3-500 is designed to give truckmount-level performance in a portable machine that combines versatility with ease of transport. Years of experience, engineering, and planning have gone into the design and manufacturing of the MX3-500. We take a great deal of pride in the MX3-500; our goal is no less than your complete satisfaction.

The Hydro-Force Nautilus MX3-500 is intended for commercial use only.

This manual will provide users with the knowledge required to operate the Nautilus MX3-500 safely, to understand how to properly operate and maintain the machine, and to ensure that the equipment operates at its maximum performance level.

All users must read and understand this manual completely before operating the machine.

Always maintain this manual in legible condition adjacent to the Nautilus MX3500, or place in a secure location for future reference.

Any questions pertaining to the operating or servicing of this unit should be directed to your nearest Hydro-Force distributor.

This manual is written specifically for the Nautilus MX3-500 portable extractor units manufactured by:

Hydro-Force 4282 South 590 West Salt Lake City, UT 84123 801-268-2673 801-268-3856 FAX

Information in this manual is subject to change without notice and does not represent a commitment on the part of Hydro-Force or its parent or affiliated companies.

Technical Specifications

MX3-500 High Pressure Extractor

Height: 42-1/4” Length: 34-3/8” Width: 23-3/8” Weight: 136 lbs. Solution Tank Capacity: 12 gallon Recovery Tank Capacity: 12 gallon

Solution Pump: Pump-Tec #207 pump with 1/2 HP Motor - 0-500 psi – 1.06 gpm

Vacuum Motors: Two AMETEK Lamb 5.7” diameter 3-Stage – tangential discharge

Can be operated in series or parallel configuration

Pump-out Pump: FloJet 120VAC 4.5 gpm (Optional)

Power Draw: Cord #1 – 20.85Amp wide open / 13.45amp full load Cord #2 – 5.50Amp wide open / 2.80amp full load

(Add 14.58amps to Cord #2 for units with optional 1750W Heater)

Standard Equipment Vacuum Connection: 2” Barb or 2”Male Flash Cuff with 2” Male NPT Vacuum Hose: 25’ X 1-1/2” with 1-1/2” cuff & 2” cuff 2” Female Flash Cuff x 1-1/2” hose adapter

Carpet Wand:

Accessory Mounting Hardware: Four 1/4-20 x 5/8” SS Screws and Washers Pump Priming Hose: 12” x 1/4” with 1/4” male quick connect HP Solution Hose: 25’ x 1/4” with 1/4” male & female quick connects Power Cords: 2 – 25’ x 12gauge with male & female plug ends Electrical: Dual Circuit Indicator 5amp Pump Circuit Breaker Internal Component Cooling Fan Optional Features: 1750W Heater Auto Fill System with chemical draw: Metering Tip Kit: 14 different tips for changing chemical dilution rate Water Supply Hose: 50’ x 3/8” with 1/4” female quick connect &

Auto Pump-out System: Pump-out Hose: 50’ x 3/4” with male & female garden hose fittings

(Add 1.50amps to Cord #2 for units with optional Pump-Out Pump)

1-1/2” SS Dual Jet S-Bend Wand

– AW29

Female garden hose fitting

Additional / Optional Equipment

R51G

AR5

NM4407

Wand Glide – Delrin AW529D Wand Glide – Teflon AW529T 18” Bottom Velcro Strap for Wand Holder NM5841 Hy-Dry Deluxe Upholstery Tool: AW50D Gekko Handle Assembly: AR51A Gekko 4” Tool Head: AR51D SX-7 Tool Head: AR51G Gekko Hand Tool: AR53 1-1/2” Vacuum Hose: (Sold per foot – No cuffs) AH36 2” cuff for 1-1/2” Vac Hose: AH46 1-1/2” cuff for 1-1/2” Vac Hose: AH42 1-1/2” Hose Connector PVC: AH74 HP Solution Hose 1/4” X 25’ w/M-F Quick Connects AH79D 1/4” Male Quick Connect: AH102B 1/4” Female Quick Connect: AH101B Pump-out Hose: AH65 Hydro Filter II: AC10 Replacement Screen for Hydro-Filter II: AC10C Metering Tip Kit: PDE001 12/3 X 25’ Power Cord: AX32 12/3 X 50’ GFCI Power Cord: NM4407A Belt Pack AX108

AC10

AR51D

AX108

AR53

Safety

Section

This machine is an electrical appliance.

Care must be taken to reduce the risk of electrical shock.

READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE OPERATING THE MX3-500.

• To reduce the risk of property damage or injury, repairs to electrical systems should only be performed by

experienced technicians. Contact your distributor for assistance. Unplug machine power cord from outlet before performing any repairs on the extractor.

• This machine shall be grounded while in use to protect the operator from electric shock. The machine is

provided with a three-conductor cord and a three-contact grounding type attachment plug to fit the proper grounding type receptacle. The green (or green and yellow) conductor in the cord is the grounding wire. Never connect this wire to other than the grounding pin of the attachment plug.

• This machine is for use on a nominal 120-volt circuit and

has a grounding plug that resembles the plug illustrated in the sketch to the right. Make sure that the machine is connected to an outlet having the same configuration as the plug. No plug adapter should be used with this machine.

• The power cords supplied with this machine are properly

sized to handle the electrical load of this machine and properly grounded as described above. Any extension cords used with this machine must be similarly sized with an equal or greater load rating and grounded to assure safe operation. A properly sized or rated GFCI protected cord can be used for additional protection.

• The two power cords must be plugged into separate circuits during operation. The Dual Circuit Indicator will

ensure that the two cords are operating on different circuits (see Page 9 for details.)

• Do not use the MX3-500 outdoors, in standing water or on wet surfaces. Do not store the MX3-500 in wet

conditions. If extractor is leaking, unplug machine power cords from outlets before approaching or touching machine.

• Do not unplug power cord by pulling on the cord. Grasp the plug end when unplugging the cord. Do not pull

the extractor by the cord. If cord or plug is damaged, do not use cord. Replace with new cord or repair as needed before use.

• Overloaded circuit may not always trip circuit breaker. Reduced voltage to a machine on an overloaded circuit

will prevent components from operating properly.

This machine must be protected from conditions which

may damage the pump, tank, hoses and other components.

• Freezing of water in this machine will cause serious damage. The MX3-500, solution hoses, and tools

must be protected from freezing temperature. Store, transport, and use this equipment only in temperatures well above freezing. (32ºF or 0ºC). If you suspect the MX3-500 has been frozen, do not plug in or turn on machine until you are sure it has thawed completely.

• If the equipment cannot be stored or transported in a warm environment, it can be guarded from freezing by

running an anti-freeze solution through the incoming water lines, chemical feed system, solution pump, solution lines, tools and pump-out pump. The machine is filled at the factory with anti-freeze to eliminate damage during shipment in cold weather.

o The anti-freeze solution must be completely flushed from the machine before it is returned to service.

• The MX3-500 must not be used to pick up flammable or combustible materials or used in areas where these

materials may be present.

• Solvent-based or water-based solutions containing solvents may damage the pump, hoses, and other

components. Do not assume chemical compatibility. Contact your distributor or Hydro-Force if you have questions regarding the compatibility of your chemicals with the machine.

• Do not clean with solutions that are at temperatures above 130ºF.

• Rinse the solution tank, chemical system, and pump with fresh water after each day’s use.

• Do not allow pump to run dry. Always maintain adequate solution level to supply solution pump.

• HP hoses may rupture if worn or damaged. Do not use HP solution hoses if hose covering is cut, bulging, or

otherwise damaged. Examine HP solution hoses daily and replace or repair hoses as needed.

• Use a Hydro-Filter II and clean the recovery tank daily to keep pump-out filter and pump from becoming

clogged. Store the MX3-500 with the recovery tank lid open.

• Keep Vacuum Inlet Filter clean and check float for proper operation. Do not operate the MX3-500 without the

Vacuum Inlet Filter in place. Use defoamer to eliminate foam build-up during cleaning and prevent

foam/moisture from entering vacuums.

Use common sense to protect yourself and others while using this equipment.

• Keep pets and children away from the machine when in use.

• Keep all body parts, hair, and loose clothing away from openings and moving parts. Always wear appropriate

work clothing and safety equipment when operating unit.

• Use extra care when cleaning on stairs. Wet carpet on stairs can be slippery.

• Do not move the MX3-500 up or down stairs when tanks are full of water. Drain solution and recovery tanks,

and secure base latches before moving unit up or down stairs. Lift using only the machine handles designed & designated for moving and lifting.

• Water may be spilled, drip, or be exhausted from vacuums during operation. Place unit in area where water will

not cause damage or use drop cloth to protect surfaces.

Vacuum Connections

Section

The MX3-500 has a unique vacuum system which allows you to connect your vacuums in either parallel or in series. Vacuum connections can be changed quickly, with only a screw driver. While there is debate on which vacuum alignment provides the best extraction, this much is true:

• Two vacuums in series: The vacuum lift is increased by 1.6

times the rating of a single vacuum, while the air flow stays the same as a single vacuum.

• Two vacuums in parallel: The vacuum air flow is increased by

2.0 times the rating of a single vacuum, while the lift says the same.

Air flow is usually measured in cubic feet per minute, indicated as CFM. Lift is usually measured in inches of water column, indicated as

“H2O or “WC.

To connect vacuums in parallel:

1. Connect the discharge / exhaust hose from vacuum #1 to the

exhaust pipe on machine base.

2. Place the rubber stopper into the vacuum inlet port of vacuum

manifold number two.

3. Open vacuum gate valve and attach the Gatekeeper to prevent

accidental valve closure. When connected in parallel, both vacuums must be running during cleaning. Vacuums cannot be operated individually.

To connect vacuums in series:

1. Connect the discharge / exhaust hose from vacuum #1 to the

vacuum inlet port of vacuum manifold number two.

2. Place rubber stopper into the exhaust pipe on machine base.

3. Remove Gatekeeper and close vacuum gate valve.

When connected in series vacuums can be operated individually if desired during cleaning.

Always secure the Gate Valve Open with the Gatekeeper when connecting the vacuums in Parallel. Closing the Vacuum Gate Valve with the hoses connected in the Parallel configuration may

cause damage to Vacuum

#2.

GATEKEEPER

Operation Procedures

Knowledge of the proper operation of the MX3-500 is required to ensure user safety and efficient performance of the extractor.

SET UP AND OPERATION

1. Electrical Cords:

Two 25’ power cords are supplied with the Nautilus MX3-500. The amperage required by each cord requires that the two cords be plugged into separate circuits:

• Cord #1 (Left side) Powers vacuum #1, vacuum #2 and cooling fan. Cord #1 must be connected to a

20amp circuit.

• Cord #2 (Right side) Powers solution pump, the optional 1750W heater and optional waste pump if so

equipped. When the optional heater is used Cord #2 must be connected to a 20amp circuit. Units without a heater or with the heater turned OFF cord #2 of the MX3-500H can be connected to a 15amp

circuit. 20amp circuits are usually found in kitchens and bathrooms. An overloaded circuit will not always trip the circuit breaker immediately, but it may not provide sufficient voltage for proper operation and the breaker may trip eventually.

Plug the two power cords into two outlets from different circuits. If the Dual Circuit Indicator green light fails to light, you may be on the same circuit and may need to select a different plug for one of the cords. If the Dual Circuit Indicator green light comes on, you are plugged into two different circuits. Proceed with your set-up procedure.

(Dual Circuit Indicator Light may take up to 30 seconds to recognize the two circuits and turn ON.)

If a circuit breaker trips or the pump circuit breaker trips during operation, reset the breakers and move the cord to another outlet as needed.

When operating the MX3-500 using the OPTIONAL 1750W heater DO NOT turn the heater on until after the pump has been primed and solution hose and tool connected – Steps #3, #4 & #5.

Cord #1 Cord #2

Dual Circuit Indicator Light

Power Cord – AX32 25’ – 12 gauge M-F Plugs

2A. Water Supply & Chemical Mixing– Manual Fill:

Proportioning Valve

Chemical Feed Hose

• Pour up to 12 gallons of hot water into the solution tank at the front of the machine. The water

temperature cannot exceed 130°°°°F.

• Measure and add the appropriate amount of the desired liquid chemical to the water in the solution tank.

The amount of chemical will vary depending on the type of chemical used, the amount of water in the tank, and the material being cleaned; consult the chemical packaging for specific mixture ratios.

• Powdered chemicals should be dissolved in water before adding to the water in the solution tank.

DO NOT RUN OUT OF WATER WHILE USING THE MACHINE! Ensure that the tank contains enough water to complete each job. If the water level is low: stop cleaning, turn off the pump, and refill the tank. Running the pump dry will damage the pump and void the warranty.

Pour appropriate amount of hot water into

Add appropriate amount of chemical to water

2B. Optional Auto-Fill System - Water Supply & Chemical Dilution:

• The chemical dilution rate is controlled by the metering tip, and the dilution rate can only be changed by

changing the metering tip (See “How to Change the Metering Tip” on Page 11 for instructions.)

Chemical Feed Setup:

• Remove the chemical feed hose from the solution tank. Make sure float is attached to valve and hanging

freely, above the bottom of the solution tank. Adjust float height to maintain adequate water level.

• Place the end of the chemical feed hose into a container of liquid chemical.

• If the tip is removed, and the proportioning system operated with no tip, the dilution rate will be 8:1 (the

equivalent to adding 16-1/4oz of chemical to each gallon of water.)

• The recommended tip for use with the MX3-500H is the turquoise tip with a dilution rate of 256:1. This

means that for each gallon of water flowing into the machine, 1/2 ounce of chemical will be added.

• If a fresh water rinse with no chemical is desired, simply leave the chemical feed hose inside the

solution tank.

Float Valve

Float Hanger

Float

How to Change the Metering Tip:

TIP

CHEMICAL DILUTION RATES

Proportioning Valve

Chemical Feed Hose

• Remove the chemical feed hose from the barb on the side of the proportioning valve.

• Unscrew and remove the old tip.

• Screw in the proper tip for your chemical tip and place the hose back on the barb

Turquoise Tip Dilution 256 - 1

Red Tip Dilution 85 - 1

Metering Tip Kit (Hydro-Force Item# PDE001) contains 14 different colored metering tips, allowing dilution rates from 11:1 up to 427:1. Refer to the chart below to select the tip that meets the dilution rate for your chemical application.

• For example: if you require 1-1/2 ounces of chemical per gallon of water, change to the red metering tip

with the dilution rate of 85:1.

• The dilution rates are based on chemicals with water-like viscosity. Thicker (more viscous) chemicals will

dilute at a different rate.

• For powdered chemicals, a liquid concentrate must be made. Mix the concentrate according to the

manufacturer’s directions, and then select the appropriate metering tip.

• Contact your distributor or Hydro-Force if you have questions about your chemical.

Metering Tip Application Chart:

COLOR

OZ / GAL (RATIO)

Metering Tip Kit – PDE001

TAN 0.30 (427:1)

ORANGE 0.40 (320:1)

TURQUOISE 0.50 (256:1)

PINK 0.75 (170:1) LIGHT BLUE 1.00 (128:1)

BROWN 1.12 (114:1) RED 1.50 (85:1)

WHITE 1.75 (73:1) GREEN 2.00 (64:1)

BLUE 2.50 (51:1) YELLOW 3.75 (34:1)

BLACK 5.00 (26:1) PURPLE 8.50 (15:1)

GRAY 11.50 (11:1)

NO TIP 16.25 (8:1)

Water Supply:

• Once the correct metering tip is in place:

o Connect the Auto-Fill Water Supply Hose to the water inlet (the male quick-connect on the front

of the machine.)

o Connect the other end of the hose to a water faucet, and then turn on the water.

• Hot water can be used as long as the temperature does not exceed 130°F.

• Faucet adapter kits (Hydro-Force item #AX21 & AX22) are available that allow connection to different

types of faucets if needed.

Chemical Feed Hose

Connect the Auto-Fill Water Supply Hose to a faucet and turn on the water

Connect the Auto-Fill Water Supply Hose to Solution Inlet (Male quick connect on the front of the machine.)

3/8” id X 25’ with F Quick Connect & F Garden Hose Fitting

To adjust the water level in the solution tank:

Float Hanger Hook

• Turn off the water supply.

• Adjust the length of the chain connecting the float bottle to

the float valve. Unhook the float from the beaded chain on the valve. Unsnap the hook from the beaded chain on the float.

 Move the bottle down to decrease the water level.  Move the bottle up to increase the water level.

• Snap the back onto the float chain & hook the float back

onto the valve chain.

• Turn the water supply back on.

If the chemical is not drawing, or if the tank is not filling or is overflowing, refer to the trouble shooting guide, or contact your distributor for assistance.

Float Bottle

Float Valve

3. Priming the High-Pressure Pump:

PUMP PRIMING HOSE

NM5080

Once water is in the solution tank, the high pressure pump must be primed:

• There is a priming hose included with the machine. Connect the priming hose to the solution outlet –

female quick connect on the front of the machine.

• Turn on both vacuums and the solution pump. Insert the end of the priming hose into the vacuum

inlet port on the front of the machine and cup your hand around the hose to block off the vacuum inlet with your hand. The vacuum will pull solution through the pump and priming hose into the vacuum tank.

• Turn off the pump and vacuums. Disconnect the priming hose. You can now continue your set-up.

As long as there is solution in the tank, the pump should remain primed.

If the pump still does not prime, or if flow is low or unsteady, check the hose from the solution tank to the pump (as well as the filter) for clogging, kinks, or restrictions. Clean or replace hose and/or filter and repeat the priming procedure.

If you are having trouble with the pump, refer to the trouble shooting guide or contact your distributor for advice or assistance.

4. Connection of Solution Hose:

Connect the high pressure solution hose to the solution outlet (female quick connect on the front of the machine). Connect the other end of the hose to the male quick connect on the cleaning tool. When you are ready to start cleaning, turn the solution pump switch to the ON position. The pressure is preset; there is no pressure adjustment to be made.

HP Solution Hose Assembly – AH79D 1/4” id X 25’ with M-F Quick Connects

Connect the male end of the HP Solution Hose Assembly to the female solution outlet fitting on the machine. Connect the female end to the cleaning tool.

5. Optional 1750W Heater Operation:

To prevent damage to the heater, the heater must have water in it before it is turned ON. Fill solution tank, prime the pump and connect solution hoses before turning heater ON.

While the heater allows for maximum operating temperature of approximately 190ºF, the temperature of the cleaning water delivered to the tool is dependent on two factors:

• The starting temperature of the water: Starting with hotter water will require a smaller temperature

increase from the heater to reach the maximum temperature.

The water temperature in the solution tank cannot exceed 130°°°°F.

• Flow rate: The lower the flow rate of the water through the heater, the more time the water will be inside

the heater. The water will have more time to be heated and can reach a higher temperature. High water usage and flow rate will not allow the water enough time to be heated and the temperature of the water delivered to the tool will be much lower. The flow rate can be lowered by putting smaller jets in the cleaning tool and by reducing the amount of time the wand is sprayed. Taking additional drying stokes without spraying water between spraying strokes will help increase the potential temperature rise.

6. Connection of Vacuum Hoses:

The vacuum connection port on the machine can be either a 2” hose barb or 2” male Flash Cuff. Both are included with your MX3-500. The desired connector can be threaded into the vacuum port on the front of the machine. A 2” female Flash Cuff 1-1/2” hose adapter is also included to connect the 1-1/2” vacuum hose to the 2” male Flash Cuff on the machine. A 2” hose cuff for 1-1/2” vacuum hose is included to connect the 1-1/2” vacuum hose to the 2” hose barb on the machine.

VACUUM CONNECTION WITH STANDARD BARB AND VINYL CUFF

With the proper cuff attached to the 25’ Vacuum Hose, the 25’ vacuum hose is then connected to the vacuum connection port on the MX3-500. The other end with the 1-1/2” cuff is connected to the cleaning tool.

When ready to begin cleaning, turn both vacuum switches to the ON position. If connected in series, the MX3-500 can be operated with only one vacuum for cleaning delicate fabrics. (See Vacuum Connection instructions on Page 8) In most situations you will turn both vacuum switches ON.

VACUUM CONNECTION WITH FLASH CUFFS

7. Optional Foam Downer:

FOAM

FOAM DOWNER cannot be used

HOSE HOOK

AH95

A key problem with portable extractors is that they have small tanks where foam dissipates slowly. If you have had issues with foam or are anticipating foaming problems, you will want to use a Foam Downer.

Foam can be drawn into the vacuums before the vacuum shutoff closes. Foam and water blowing out the vacuum makes a big mess, can decrease vacuum lift and damage the vacuum motors.

The Foam Downer kills foam as waste water enters the machine. Place a container of liquid defoamer on the top of your MX3-500. The vacuum air flow siphons the liquid defoamer through Foam Downer into the vacuum tank, breaking down the foam before it can cause any damage or make a mess.

• Mounts and is ready to use in seconds

• Uses defoamer very economically

• NO LABOR is involved to spray or spread defoamer – it’s all automatic

• Keeps silicone defoamers off the floor where they can cause resoiling problems

The Foam Downer is an attachment that allows the vacuum to draw a small amount of defoamer in a constant slow flow into the waste tank of the Nautilus. We recommend using a diluted defoaming solution of four ounces of defoamer to one gallon of water (1-32). Place the draw tube into the gallon of diluted defoamer and open the needle valve one half turn as your starting point. If this is not sufficient to break down the foam you can open the valve more or add more defoamer to the water to make a stronger solution. With the valve open one half turn it will take approximately one half hour to drain the gallon of diluted defoaming solution.

DOWNER

AH17

with 2” Male Flash Cuff connector on machine. Remove 2” Male Flash Cuff and install 2” hose barb as needed.

8. Connection of Optional Pump-Out Hose:

Pump

out Filter

If your machine has the Optional Auto Pump-Out System you may want to connect the Pump-Out Hose. The pump-out hose is a 50’ section of 3/4” garden hose. (Use of smaller diameter hose may reduce flow.)

• Remove the cap from the pump-out outlet fitting on the back of the machine.

• Connect the pump-out hose to the outlet fitting.

• Place the other end of the hose in a commode or drain connected to the sanitary sewer system.

• Secure hose end to prevent movement during pumping.

 Use defoamer to prevent foam build-up in recovery tank during cleaning and to keep

foam/moisture from entering vacuums.

 Use Hydro Filter II inline filter to trap and remove debris from the waste water before it

enters the recovery tank. Excess debris in recovery tank may clog Pump-Out filter. Clean Filter as needed during use.

 Do not turn the Waste Pump switch ON unless pump-out hose is connected and has been

routed to a proper drain.

 The Waste Pump does not use a float switch and will run as soon as the Waste Pump switch

is turned ON. It is made to run continuously while cleaning, as this type diaphragm pump can run dry without damage.

When ready to begin cleaning, turn the Waste Pump switch to the ON position.

Connect the Female Garden Hose Fitting end of the Pump-out Hose to the outlet fitting on the back of the recovery tank. Place the other end of the pump-out hose in a sanitary drain.

If not using the waste pump-out, the pump-out hose does not need to be connected. When the recovery tank fills during cleaning, the float assembly in the vacuum inlet filter will rise and will automatically shut off the vacuum air flow to prevent the recovery tank from overfilling and waste water from getting into the vacuums. When this occurs:

• Immediately shut off the vacuum switches.

• Drain the recovery tank.

o Turn off the pump switch while draining the tank. o Turn pump switch back upon resumption of cleaning.

• Close the drain valve and turn the vacuum switches back on when

ready to resume cleaning. If the pump-out or vacuum shutoff is not working properly, refer to the trouble shooting guide or contact your distributor for advice or assistance.

Float Shutoff Assembly

Draining the Recovery Tank

9. Pressure Adjustment:

To make it easier to check and adjust the pressure, the pressure gauge and the pressure regulator are mounted on the control panel on the front of the machine. When the high-pressure solution pump is on and primed, pressure will show on the gauge.

• To decrease the pressure, turn the brass knob on the pressure regulator to the left (counter-

clockwise.)

• To increase the pressure, turn the brass knob on the pressure regulator to the right (clockwise.)

• To adjust pressure to your tool and surface requirements:

o Check the pressure on the gauge. o Re-adjust as needed to set the machine at the desired pressure. o Choose the pressure setting that best meets your type of cleaning.

To increase the solution pressure, turn the regulator knob clockwise.

The maximum pressure setting is 500psi; however, the highest pressure attained is dependent on the amount of water flow at the tool:

• Smaller jets and lower flow will allow for

higher pressure at the tool.

• Larger jets and higher flow will lower the

maximum pressure attained at the tool.

The desired setting will depend on the type of cleaning and tool used. For example:

• Carpet Cleaning with 2-jet AW29 wand: 400psi

• Upholstery Cleaning with AW50D tool: 200psi

If adjusting or maintaining pressure becomes a problem, refer to the trouble shooting guide or contact your distributor for advice or assistance.

To decrease the solution pressure, turn the regulator knob counter-clockwise.

Pressure gauge & Regulator/Unloader

Shutdown Procedures:

• If using the optional auto-fill system, turn the water supply off before finishing each job. This will allow

use of the water and chemical already in the tank, and will reduce the amount of excess water to be disposed of later.

• If using the optional 1750W heater, turn the heater off before finishing each job. This will allow the

water to cool the heater as you finish the job.

• When finished cleaning, turn off all switches.

• If the optional auto-fill system was used and there is still water in the solution tank, push the float down

to release the water inlet hose pressure before disconnecting the hose from the faucet. Disconnect the water inlet hose from the quick-connect on the front of the machine.

• Disconnect the solution hose and vacuum hose from the cleaning tool. Pull valve trigger to release

pressure from the hose before disconnecting solution hose from cleaning tool.

• If a Hydro Filter II inline filter was used, disconnect the Hydro-

Filter II from the vacuum hoses and clean the filter as needed. Replacement filter screens are available (AC10C.)

• Disconnect the vacuum hose and solution hose from the machine.

• If water remains in the solution tank, use the vacuum hose and

vacuum the excess water from the tank.

• If the optional auto-fill system was utilized, place the chemical feed

hose back into the solution tank.

• If the optional Auto waste pump-out system was used:

o Turn the waste pump switch “on” to pump out any

remaining water from the recovery tank.

o Turn switch off, remove the pump-out hose from the outlet

fitting and replace the cap.

o Roll up hose toward drain to remove remaining water from

hose.

o Connect ends of hose together to prevent dirty water from

dripping from hose during transport.

• Disconnect the power cords from the outlets and from the

machine.

• Remove the float shutoff assembly from the recovery tank and clean vacuum shutoff filter as needed.

Clean Pump-Out filter screen. Replace shutoff assembly and tank lid.

• Drain any remaining water from the recovery tank and dispose in sanitary drain. Do not use the same

bucket to drain the tank that you use to fill the tank.

• Roll up all hoses and cords. Collect and store extractor, all tools, and accessories.

Accessory Storage Options:

The MX3-500 is designed to make it easier for the operator to transport the machine and the most common cleaning accessories.

Bucket & Sprayer Storage

The top of the MX3-500 is sized and recessed to hold a five gallon bucket or two one-gallon chemical bottles as well as two 2QT sprayers.

Power Cord Storage

The back of the MX3-500 has two sets of cord wraps to hold two 12/3 x 25’ power cords.

Carpet Wand Storage

The front of the MX3-500 is designed to hold a S-Bend Carpet wand and has two straps to hold it securely. Optional strap for larger wands available

Other Tool & Hose Storage

Each side of the MX3-500 has a set of molded in threaded inserts to which holders can be attached to hold other accessories or supplies making it much easier to move around. Four 1/4-20 x 5/8” mounting screws & washers included.

Wand Holder Straps

Molded in Threaded Inserts for Side Mount Holders

Problem

Cause

Solution

Section

Troubleshooting

Troubleshooting – Nautilus MX3-500

Machine not Building circuit breaker tripped. Reset breakers or move cords to other outlets turning on - Faulty power cord Replace cord (AX33) No power Faulty switches or internal wiring Check wiring & test switches - Repair as needed *

Solution Pump Building circuit breaker tripped. Reset breakers or move cords to other outlets

not running Pump circuit breaker tripped Reset breaker – Check available circuit power & pump Faulty power cord Replace cord (AX33) Faulty switches or internal wiring Check wiring & test switches - Repair as needed * Pump motor breaker tripped Push in reset button on pump motor &/or external breaker Pump motor faulty Replace pump motor (PT066)

Repair or replace pump head & bearing (PT065) - Check

Pump seized - trips breaker

Low Solution Jets too large for pressure desired Pressure and/or Jets worn allowing too much flow Replace jets

Pulsation Solution inlet filter plugged Clean or replace filter Hose from solution tank restricted Repair or replace hose

Pump intake hose or fittings

Pressure regulator sticking Lube o-rings on regulator piston – PAGE 33 Pressure regulator faulty Repair or replace pressure regulator (PT021)

Solution tank empty Add water to tank - Check & repair auto fill assembly Pump not primed Perform pump priming procedure Pump faulty Repair or replace pump (PT065 or AP52) Tool valve faulty Repair or replace valve Quick connects or hoses restricted Clean out or replace quick connects and/or hoses

Can't connect Pressure in lines Release pressure solution hose Quick connects faulty Replace quick connects (AH101B, AH102B) to machine Wrong style/size quick connects Replace quick connects to match connects on machine

leaking Repair or replace hose. Tighten clamps or replace fittings

Filter screen or jets plugged on tool Clean out filter or jets

motor and/or replace complete pump & motor assy. (AP52)

Check jets size & flow rates use smaller jets or lower pressure

performed by experienced service technicians. If you are not experienced in checking electrical wiring contact your nearest authorized service

center to perform tests and repairs to wiring and switches.

: To reduce the risk of fire electrical shock or injury repairs to wiring should only be

Problem

Cause

Solution

Dual Circuit Cords on the same circuit Move one cord to outlet on different circuit Indicator No voltage from one/ both outlets Check circuit breakers – Reset breakers or move cords Not Lighted Light Bad Replace Light Dual Circuit Indicator Bad Replace indicator

If hot & neutral sides switched on outlet, machine will work,

One/Both Outlets Wired wrong

Pump-out Building circuit breaker tripped. Reset breakers or move cords to other outlets not working Faulty power cord Replace cord (AX33) Faulty switches or internal wiring Check wiring & test switch - Repair as needed * (NM5714) Pump-out pump faulty Replace pump-out pump (AP37)

Pump-out filter clogged Discharge hose restricted Un-kink, clean out or replace hose Pump-out pump clogged Remove and clean out pump

Vacuum Building circuit breaker tripped. Reset breakers or move cords to other outlets Motor Faulty power cord Replace cord (AX33) not running Faulty switches or internal wiring Check wiring & test switches - Repair as needed * Vacuum motor faulty Replace vacuum motor (AV14)

Loss of Vacuum motor faulty Replace vacuum motor (AV14) Vacuum Vacuum motor gasket damaged Replace gasket (PA010) Recovery tank lid gasket damaged Replace gasket (NM5718) Drain valve open Close valve Drain valve leaking Repair or replace drain valve (PEA11)

Vacuum motor hoses loose /

Vacuum Valve in wrong Position Check Vacuum Gate Valve Position. – PAGE 8 Vacuums not connected properly See vacuum connection instructions – PAGE 8 Vacuum hose or tool clogged Clean out vacuum hoses and tool Vacuum hoses or cuffs leaking Replace vacuum hoses, cuffs & connectors as needed Recovery tank full Drain tank Float shutoff filter clogged Clean float shutoff filter Float stuck in float shutoff Repair or replace float shutoff Pump-out Pump faulty Repair or replace pump out pump (AP37) Recovery tank damaged Replace recovery tank

Chemical not Solution tank not filling Check & repair auto fill assembly feeding Chemical hose restricted Un-kink, shorten, clean out or replace hose Filter screen plugged Clean or replace filter (PDE100-11P)

Low Incoming Water Pressure Wrong size metering tip Change metering tip Chemical proportioner faulty Replace chemical proportioner (PDE61-22-3) Check valve in filter faulty Replace filter (PDE100-11P)

leaking Reconnect or replace vacuum motor hoses

but light will not turn ON.

Clean pump-out filter - Keep recovery tank clean – Use Hydro-Filter AC10

Move bottle & shorten chemical hose to improve draw – Find other water source.

performed by experienced service technicians.

If you are not experienced in checking electrical wiring contact your nearest authorized service

center to perform tests and repairs to wiring and switches.

: To reduce the risk of fire electrical shock or injury repairs to wiring should only be

Problem Cause Solution

Tool won't Jets clogged Clean out or replace jets spray - low or Inline filter clogged Clean out or replace filter uneven spray Jets worn Replace jets Jets not aligned properly Re-align jets Tool valve faulty Repair or replace valve Quick connects or hoses restricted Clean out or replace quick connects and/or hoses

Solution Tank Water source turned off Turn on faucet or find other water source not filling Float not on valve arm Reconnect float to valve arm - Adjust to proper height/level Float valve faulty Repair or replace float valve Water hose restricted Un-kink, clean out or replace hose Water Pressure too high Use pressure regulator on auto-fill hose Quick connects faulty Clean out or replace quick connects (AH101B, AH102B)

Solution tank Float too heavy/ Filled with water Replace float overflowing Float & chain tangled Make sure float chain free & hanging properly Float too high Adjust chain to set float at proper level Water Pressure too high Use pressure regulator on auto-fill hose Float valve faulty Repair or replace float valve

Chemical Jug Foot valve in Filter stuck Clean out foot valve and filter Filling with Foot valve in Filter faulty Replace foot valve and filter (PDE100-11P) water - Overflowing

Water Not Faulty switches or internal wiring Check wiring & test switches - Repair as needed * Getting Hot Temperature Switch faulty Replace Temperature Switch On Heater Water Being used too fast Re-jet wand – Slow the flow - Take extra drying strokes Heater Switch OFF Turn Heater Switch ON Heater Faulty Replace Heater (NM5044)

: To reduce the risk of fire electrical shock or injury repairs to wiring should only be

performed by experienced service technicians. If you are not experienced in checking electrical wiring contact your nearest authorized service center to perform tests and repairs to wiring and switches.

• Contact your distributor for additional troubleshooting

assistance, to order parts, or for advice and assistance in performing necessary repairs.

MX3-500

Gauge

Chemical Jug

Connect

Solution Flow Path

Outlet Quick

Connect

Denotes incoming water flow

Optional 1750W Heater

Solution Tank

Filter

Pump – AP52

Denotes Water flow in high pressure hose

Optional – Auto Fill Float Valve Assembly

Pressure Regulator PT021

Denotes by-pass water flow from pressure regulator

Optional Auto

Fill Inlet Quick

Denotes Chemical flow

VAC 1

HEATER

PUMP OUT

SOL PUMP

COOLING FAN

Dual Circuit

VAC1 VAC2

VAC 2

SOLUTION

PUMP OUT

HEATER

CORD #1

10AMP

M1200

MX3-500 Wiring Diagram

Wiring Diagram – Cord #1

12GA

Indicator

1750W

1 CIRCUIT

PUMP

Machine Base

BREAKER

12/3

VAC 1

HEATER

PUMP OUT

SOL PUMP

COOLING FAN

Dual Circuit

VAC1 VAC2

VAC 2

SOLUTION

PUMP OUT

HEATER

CORD #2

10AMP

MX3-500 Wiring Diagram – Cord #2

12GA

12/3

Indicator

1750W

1 CIRCUIT

PUMP

Machine Base

BREAKER

NAUTILUS MX3-500 SWITCH PANEL:

outlet cap was still in place.

(Shown with optional Heater & Pump-Out)

Vacuum #1 – Power from Cord #1.

When the switch is turned to the ON position power is supplied to the vacuum motor. (2-Stage Vacuum)

Vacuum #2 – Power from Cord #1.

When the switch is turned to the ON position power is supplied to the vacuum motor. (2-Stage Vacuum)

Solution Pump Switch – Power from Cord #2. When the switch is turned to the ON position power is supplied to the solution pump motor. When not using solution (Extracting only) do not turn this switch ON.

Cooling Fan – Power from Cord #1.

The cooling fan is not controlled by any switch. As soon as Cord #1 is plugged in the cooling fan will turn on to exhaust air from the base.

Optional Heater – Power from Cord #2.

When the switch is turned to the ON position power is supplied to the 1750W heating element.

OPTIONAL - Waste Pump Switch Power from Cord #2.

Do not turn Waste Pump Switch ON unless a hose is connected to the Pump-out Outlet port. For pump protection there is a pressure switch which will turn the waste pump off if the pressure in the discharge line gets too high, as it would if the pump was turned on while the

CLEAN CHEMICAL FEED FILTER & FOOT VALVE

Daily

– After Each Job

CLE

AN VACUUM SHUTOFF ASSEMBLY SCREEN

Daily

– After Each Job

CLEAN HYDRO

FILTER

Daily

– After Each Job

RINSE OUT RECOVERY TANK

Daily

CLEAN WASTE PUMP

OUT PUMP

Daily

FLUSH SOLUTION TANK AND PUMP

Daily

CLEAN PUMP

INLET FILTER

Weekly

– As n

eeded

FLUSH CHEMICAL SYSTEM

Monthly

LUBRICATE REGULATOR PISTON SEAL

Monthly

CLEAN DRAIN VALVE

As needed

STORAGE PREP

– FREEZE PROTECTION

As needed

Section

Maintenance

Proper maintenance is required to keep the MX3-500 operating properly, prevent downtime and to extend the life of your equipment.

This machine is an electrical appliance.

Care must be taken to reduce the risk of electrical shock.

Disconnect electrical power before performing any service or maintenance inside machine base or before testing or repairing switches or power cords. Failure to do so may result in severe personal injury or death.

OPERATION INTERVAL Page #

CLEAN CHEMICAL FEED FILTER & FOOT VALVE: (If so equipped)

Part of the optional Auto Fill & Chemical Feed system, the Filter & Foot Valve is on the end of the chemical feed hose that is placed in the chemical jug as part of the chemical feed system. Regularly examine the filter and clean as needed.

To test the Foot Valve:

• Remove the Filter & Foot Valve from the end of the chemical feed hose and rinse in fresh water.

• Blow through the valve from the filter side of the barb.

o If the Foot Valve is functioning, air should move freely from the filter side, but will not flow from

the barb side of the filter.

o If valve is not functional, clean or replace as needed.

Heavy chemical build-up can be removed with a mild acid rinse and/or the use of a brush and compressed air.

Chemical Feed Hose

Filter & Foot Valve PDE100-11P

Flow Direction

CLEAN VACUUM SHUTOFF ASSEMBLY SCREEN:

Inside the recovery tank, on top of the stand pipe, is the Vacuum Shutoff Assembly. It functions to prevent debris and water from being sucked into the vacuum motors. Operating the MX3-500 without the Vacuum Shutoff Assembly or with a poorly maintained assembly will greatly decrease the life of the vacuum motors and will void the warranty. If debris builds up on this filter, it will reduce the vacuum air flow and may cause a significant decrease in the rate of water recovery. If debris prevents the float from moving or seating against the Filter Cap Assembly, it may not stop the airflow when the tank fill with water, and the water will be sucked into the vacuums and blown out the exhaust.

Use defoamer to prevent foam or moisture from entering vacuums (See Page 15).

To clean:

• Do not pull up on top of cap. Carefully pull up from the bottom of filter cap assembly to pull the

assembly off of the stand pipe. Then pull float off of riser pipe.

• Pull fibers and lint off and rinse filter cap assembly and float with clean water.

• Place the float back on the riser pipe then push the filter cap assembly back onto the stand pipe and

replace the recovery tank lid.

Vacuum Shutoff Assembly

Filter Cap Assembly

Vacuum Shutoff Float

CLEAN THE HYDRO-FILTER II: (If so equipped)

When used with the MX3-500, build-up of debris in the filter screen of the optional Hydro-Filter II will reduce the vacuum air flow and may cause a significant decrease in water recovery. A torn filter screen will allow debris past the filter and into the recovery tank. This debris can clog the Waste Pump and the Vacuum Shutoff Assembly. The Hydro-Filter II must be examined and cleaned regularly to keep the MX3-500

functioning properly:

• Grasp and turn the lid counterclockwise to open the Hydro-Filter II lid.

• Remove the filter screen. Examine the screen and clean or replace as needed.

• Rinse the body of the Hydro-Filter II with clean water.

• Examine the o-ring lid seal and replace as needed.

• Re-install the new or cleaned screen.

• Screw the lid back onto the body and turn clockwise to tighten.

RINSE OUT RECOVERY TANK:

Build-up of fine silt, sand and other debris in the recovery tank can damage the Drain Valve (and Waste Pump if so equipped). Hair and fibers in the recovery tank can clog the vacuum filter (and Pump-out filter if so equipped).Clean out the tank on a regular basis to extend the life of these components and to keep the tank and machine smelling better.

• Remove the recovery tank lid and open the drain valve.

• Place a bucket under the drain valve.

• Use a hose to rinse the dirt and debris out of the recovery tank.

• Close the drain valve and spray the tank with a deodorizer or disinfectant.

• Proceed to Waste Pump Cleaning and replace the recovery tank lid.

• Dispose of the dirty water and debris.

CLEAN WASTE PUMP-OUT PUMP: (If so equipped)

water into Solution Tank

Build-up of fine silt inside the optional Waste Pump can clog the pump even if the pump is not used, so this maintenance procedure should be performed regardless of whether the Waste Pump has been used.

• After cleaning out the recovery tank, remove the cap and connect

the Pump-Out hose to the Waste Pump outlet fitting on the back of the machine; run the hose to a drain.

• Remove the waste pump filter screen by turning it

counterclockwise. Remove the filter screen. Examine the screen and clean or replace as needed.

• Re-install the filter screen. Thread the filter loosely on to the nipple

– Leave slightly loose to keep it easier to remove for future cleaning.

• Use a hose to fill the recovery tank approximately 1/2 full with clean

water.

• With Cord #1 plugged in, turn the Waste Pump switch to the ON

position.

• Let the pump run until it pumps the level down to the point below

the pump intake filter.

• Unplug the cord and turn the Waste Pump switch OFF.

• Open the drain valve and drain out the remaining water.

• Close the drain valve, replace the recovery tank lid, and dispose of the dirty water and debris.

FLUSH SOLUTION TANK AND PUMP:

• Pour two or three gallons of clean water into the solution tank.

• With Cords #1 & #2 plugged in, connect the pump prime hose to

the solution outlet female quick connect.

• Direct the end of the pump priming hose into the recovery tank

vacuum barb.

• Turn one or both of the vacuums ON and turn the solution pump

ON.

• Let the pump run until most of the water has been pumped out of

the solution tank.

Do not let the pump run dry. Turn the pump

OFF before the water gets to the bottom of the tank.

• Turn the vacuums OFF and disconnect the prime hose.

• Place a bucket under the drain valve; open the drain valve to drain

the water out of the recovery tank.

• Close the drain valve and dispose of the water.

If there is a heavy chemical build-up in the machine, hoses, or tools, a mild acid can be added to the rinse water in the previous procedure (REFER TO PHOTOS ON FOLLOWING PAGE.)

• After the pump has been primed, turn the solution pump switch OFF and turn the vacuums OFF.

• Remove the pump priming hose and connect the solution hose and tools.

• Turn the solution pump ON and direct the tool spray into a bucket. Let the pump run until most of

the water has been pumped out of the solution tank.

Pour 2 or 3 gallons of clean

Do not let the pump run dry.

Turn the pump OFF before the water gets to the bottom of the tank.

FLUSH SOLUTION TANK AND PUMP: (continued from previous page)

Solution Tank

• Disconnect the solution hose and tool.

• Use the vacuum hose to vacuum the remaining acid solution out of the solution tank.

• Pour two or three gallons of clean water into the solution tank.

• Connect the pump priming hose to the solution outlet female quick connect.

• Direct the end of the prime hose into the recovery tank vacuum barb.

• Turn one or both of the vacuums ON and turn the solution pump ON. Let the pump run until most of

the water has been pumped out of the solution tank.

Do not let the pump run dry. Turn the pump OFF before the water gets to the

bottom of the tank.

• Turn the vacuums OFF and disconnect the prime hose.

• Place a bucket under the drain valve and open the drain valve to drain the water out of the recovery tank.

• Close the drain valve and dispose of the water.

Vacuum acid solution out of

Drain Recovery Tank

CLEAN PUMP INLET FILTER

A restricted Pump Inlet Filter can prevent the solution pump from providing adequate pressure for cleaning. A restriction or air leak on the pump inlet hose can also damage the solution pump check valves and plunger seals.

• To examine the filter, open the solution tank lid on

the front of the machine. The filter is in the bottom of the solution tank.

• Grasp the filter cap and unscrew the filter from the

brass nipple by turning counter-clockwise. Clean or replace the filter as needed (PP14-806504).

Before proceeding with this procedure, drain the solution tank & recovery tank. Make sure both power cords are disconnected.

• To examine the pump inlet hose, release the latches

on the front/bottom of the machine and tilt the tanks off of the base assembly.

• Examine the hose for kinks, clogs or holes and repair or replace the hose as needed.

(Replacement Hose: NM5086 – sold per foot)

• Tilt the tanks back onto the base and secure the latches.

Inside View: MX3-500 Solution Tank

SOLUTION FILTER PP14-806504

FLUSH CHEMICAL SYSTEM: (If so equipped)

Tank

Chemical build-up in the optional Auto Fill chemical system can prevent the system from drawing chemical.

• Rinse the chemical system with fresh water (For heavy chemical build-up, a mild acid can be added to the

rinse water.)

• Remove the chemical feed hose from the solution tank and place the end of the hose in a bucket of fresh

water or mild acid solution.

• Connect the Auto-Fill Water Supply Hose to the water inlet (male quick connect) on the front of the

machine.

• Connect the other end of the hose to a water faucet and turn on the water. Let the water flow into the

tank until you are sure the rinse solution has been drawn through the proportioner and mixed with the incoming water. The metering tip can be removed from the proportioner to speed up the process.

• Once the rinse solution has been drawn through the proportioner, turn off the water faucet and

disconnect the Auto-Fill Water Supply Hose.

• Plug in Cords, connect the vacuum hose to the vacuum barb, turn on one or both vacuums, and use the

vacuum hose to remove the water from the solution tank.

• When the solution tank has been emptied, turn off the vacuums and unplug the power cord.

• Place a bucket under the drain valve and open the drain valve to drain the water from the recovery tank.

• Close the drain valve and dispose of the water.

Place Chemical Feed Hose into

Connect Auto-Fill Water Supply Hose to machine and faucet

Vacuum water out of Solution

Drain water from Recovery

LUBRICATE REGULATOR PISTON SEAL

To maintain consistent adequate pressure delivery to the cleaning tool, the piston seal of the MX3-500 pressure regulator must be lubricated regularly.

1. Release pressure from system before proceeding.

2. Remove Brass Knob from the regulator body.

3. Remove the Spring and Spring Plate from the Regulator Body.

4. Use needle nose pliers to pull the Piston from the Regulator Body.

5. Examine Piston and Seal. Replace as needed.

Regulator Body

Spring Plate

Brass Knob Spring

6. Use a synthetic grease with Teflon such as Ultra-Slick or Super-Lube

to lubricate the seal on the regulator piston.

7. Place the piston back into the opening on the regulator body.

8. Place the Spring Plate on top of the piston. (Concave side toward piston.)

9. Place the spring back into the handle and thread the handle back

onto the regulator body.

Convex side of Spring Plate

Concave side of Spring Plate

Place concave side of Spring Plate on top of piston.

Brass Knob

Piston

Lubricate Piston Seal with synthetic grease

CLEAN RECOVERY TANK DRAIN

Debris and sand accumulation in the drain valve can damage the valve or prevent it from closing completely. This will result in dirty water leaking from the valve. Use of the Hydro-Filter and regular cleaning of the recovery tank will help prevent this, but occasionally the drain valve will require cleaning or replacement.

Unplug both cords and drain the recovery tank before attempting to service the drain valve.

• Unscrew the nuts and remove the four bolts holding the valve assembly to the flange attached to the

recovery tank. Unless the flange is damaged, it does not have to be removed from the tank, even when replacing the drain valve.

• Separate the valve body, outlet adapter and gaskets from the flange.

Remove four bolts holding valve assembly to flange fitting

Unless damaged or leaking between tank and flange, the flange fitting does not have to be removed

VALVE BODY

DRAIN VALVE – PEA11

GASKET – NM3019

• Examine the valve body for wear. Check the valve slide

for deep scratches. Deep scratches will allow water to flow past gaskets and leak from valve. Replace valve if needed.

• Examine the gaskets and replace if cut, torn or deformed.

• Raised, rounded side of gasket goes toward valve slide.

Larger flat sides seat on ring on flange and outlet adapter. Sand and debris will collect in the bottom of the valve body and prevent the slide from going down and seating properly.

• Clean debris out as needed so slide can move to bottom.

• Rinse valve body and reassemble valve body, gaskets and

outlet adapter, and place assembly back onto flange fitting.

• Replace four bolts and tighten evenly to secure assembly

Clean debris from slot in bottom of valve body.

to flange. Do not over-tighten bolts.

FLANGE FITTING

OUTLET

Storage Prep and Freeze Protection Procedures:

Your Nautilus MX3-500 must be protected from freezing. Freezing can cause serious damage to the pump, pump-out, auto-fill float valve, and any other component containing water. If the MX3-500 is transported or stored in freezing temperatures, the following procedures should be performed. ALSO, if the MX3-500 is stored for an extended period of time, the following procedure should be performed to prevent the pump seals from drying out.

1. In a separate container mix 1/2 gallon of water with 1/2 gallon of automotive radiator Ethylene Glycol

anti-freeze. (Propylene glycol can be used as a non-toxic alternative anti-freeze.). Mix well and pour into the solution tank.

2. Connect the solution hose to the solution outlet (female quick connect).

3. If not equipped with the optional Auto Fill System, snap an open quick connect onto the other end

of the hose and place the hose end back into the solution tank. Turn the pressure regulator knob counterclockwise to lower the pressure to 100psi or lower. If equipped with the Auto Fill system, connect the opposite end of the HP solution hose to the AutoFill inlet (male quick connect.) Leave the chemical feed hose in the solution tank and ensure the check valve filter is submerged in the anti-freeze solution. To speed the process the metering tip can be removed. Turn the pressure regulator knob counter-clockwise to lower the pressure to 100psi or lower.

Applying high pressure (over 100psi) to the Auto-Fill system will cause

damage to the Float valve and chemical proportioning mechanism.

4. Turn the solution pump switch to the ON position and perform the pump priming procedure. Hold the

priming valve open for a few extra seconds to be sure the anti-freeze has passed through the priming valve. When the pump is primed, allow the anti-freeze to circulate for 5-10 minutes. Mix and add more anti-freeze solution as needed. For machines with the optional Auto Fill System, make sure end of chemical feed hose stays submerged in the anti-freeze solution. This will assure that the anti-freeze will be drawn into the proportioning valve.

5. Connect any cleaning tools and solution hoses that will be stored with the MX3-500. Direct tool spray

back into the solution tank or into a bucket. Repeat for all tools to be protected.

6. Turn the solution pump switch to the OFF position.

7. Use the vacuum hose to vacuum the remaining anti-freeze solution out of the solution tank and bucket.

8. If so equipped, remove the cap from the waste-pump out outlet fitting on the back of the machine.

Connect a hose to a drain or hold a bucket up to the fitting to catch the pump-out flow. Remove the lid from the recovery tank. Turn the Waste Pump switch to the ON position to engage the pump-out. Turn off the Waste Pump Switch as soon as you see anti-freeze flowing from the outlet fitting or hose.

9. Drain the remaining anti-freeze solution from the recovery tank and the machine is ready for storage.

RETURNING THE MX3-500 TO SERVICE AFTER STORAGE OR FREEZE PROTECTION:

To return the MX3-500 to service, the anti-freeze must be flushed from the machine. Flush the anti-freeze out of the machine by repeating the procedures above using fresh water in place of anti-freeze.

Parts

Section

Replacement parts available for repair of your MX3-500.

MX3-500 PUMP – AP52

PARTS ASSEMBLY

KIT A – PT054 KIT B – PT055

KIT C – PT056

ITEM

DESCRIPTION

QTY PART NUMBER

1 KIT A PLUNGER & SEALS

PT054

2 KIT B VALVES & O

RINGS

PT055

NS KIT C CAM &

BEARING

PT056

3 MANIFOLD

4 PUMP HEAD

5 STUFFING BOX

6 CRANKCASE

7 PLUNGER GUIDE

8 HEAD BOLT

9 MOUNT BOLT

10 WASHER FLAT M6 STAINLESS STEEL

NS PUMP COMPLETE

- WITH MOTOR

AP52

NS PUMP COMPLETE

- WITHOUT MOTOR

PT065

MOTOR

PT066

UMPTEC #207 PUMP

– AP52

PRESSURE REGULATOR

–

PT021

DESCRIPTION

1 6 5

4 3

1 REGULATOR BODY 2 SS SEAT & O-RING (PT020S)

3 PISTON AND SEAL (PT020A) 4 SPRING PLATE

5 SPRING 6 BRASS KNOB

7 REGULATOR COMPLETE (PT021)

BR286

BR138

NM5751

BR282A

AH102B

BR282A

OPTIONAL AUTO-FILL ASSEMBLY

– M013

NM5740 Float Valve Assembly See Parts Breakdown on Next Page

OPTIONAL

AUTO

FILL FLOAT VALVE ASSEMBLY

NM5740

PARTS ASSEMBLY

Optional Pump-Out Pump

AP37

16 17

CONTROL PANEL

REAR VIEW

- BASE & BASE SKIRT

HINGE SCREWS

100

104

41 & 41A

19 & 19A

55 & 56

27 & 27A

31 31

9 9

32 32

33 34

14 & 14A

30 30

REAR VIEW

– BASE, BASE SKIRT & RECOVERY TANK

VACUUM PLUG ASSEMBLY

109

106

107

108

36 & 79

TOP VIEW OF BASE

3, 58 & 59

55 & 56

3, 58 & 59

107

108

109

106

47A

9, 54 & 64

VACUUM MOUNTS & CONNECTIONS

47A

9, 54 & 64

3 & 59

61 & 62

9 & 54

63 & 55

3 & 59

61 & 62

117

AP52

PUMP

WITH MOTOR

BOTTOM VIEW OF BASE

112

9 & 54

9 & 41

BOTTOM VIEW SOLUTION TANK & BASE SKIRT

36 & 36A

80 & 55

30 30

114

113

9, 30 & 31

INSIDE SOLUTION TANK

BOTTOM VIEW SOLUTION TANK

101

VACUUM SHUTOFF ASSEMBLY

116

VACUUM SHUTOFF AND OPTIONAL PUMP-OUT

102

INSIDE RECOVERY TANK

FILTER REMOVED

INSIDE RECOVERY TANK

WITH OPTIONAL PUMP-OUT

111

105

110

97 & 9

OPTIONAL - PUMP-OUT CONNECTIONS

105

14A

110

OPTIONAL PUMP-OUT PARTS

FLOW

KEY PART # DESCRIPTION

RECOVERY TANK

QUICK CONNECT FEMALE ¼”

SOLUTION TANK

ADAPTER ¼” M

-F

WASHER 5/16” FLAT SS

WASHER ½” FLAT SS

WHEEL 2

1/2” GRAY

WASHER ½” FLAT SS

WITH

ACORN NUT CAP 5/16

-18

CONTROL PANEL PLATE

SCREW 5/16

18 X 2.75” HX SS

MX3-

500 PANEL DECAL

LID ASSY WASTE TANK

RD 12GA W/ PLUG (QTY 2)

SCREW

#10 X 5/8” PH SS

(QTY 6)

CORD STRAIN RELIEF (QTY 2)

GASKET WASTE TANK DECK

NUT CORD STRAIN RELIEF

SCREW ¼

20 X1/2” SOCHD SS

GATE VALVE 1

1/2” MPT

WASHER

¼” FLAT SS

CORD WRAP BRACKET (QTY 2)

WAND HOLDER STRAP

LONG

WASHER ¼” LOCK SS

WAND HOLDER

BUCKLE

SCREW ¼

20 X ¾” SOCHD SS

WAND HOLDER STRAP SHORT

WHEEL 12”

with HUB CAP

ADAPTER ¾” MPT X ¾” MGH

AXLE CAP

– PUSH NUT

GARDEN HOSE CAP

GREEN

NEON LIGHT 12

GARDEN HOSE WASHER

COOLING FAN

BARB 2” X 2” MPT PVC

PLASTIC FAN COVER

FLASH CUFF 2” MALE

- MPT

SCREW

6-32 X ¾” PPH SS

(QTY 4)

FLASH CUFF 2” FEMALE 1.5”

BASE PLATE

ASSEMBLY

ROCKER SWITCH DPST (QTY 4)

HANDLE

PRESSURE GAUGE 1000PSI

BASE SKIRT

PRESSURE REGULATOR

500PSI

HINGE (QTY 3)

SCREW

8-32 X1” SOHD SS

(QTY 4)

SCREW ¼

20 X ¾” HXHD SS

NUT

8-32 NYLOCK SS

(QTY 4)

NUT ¼

20 NYLOCK

CIRCUIT BREAKER 10

AMP

SCREW

10-24 x ½”PPH SS

(QTY 4)

KEY PART # DESCRIPTION

1 NM5704

2 NM5702

3 PFA11

4 NM5724

5 NM5143

NS NM5137

6 NM5718

7 PA187

NS NM5718A

8 NM5028

9 NM5066

10 NM5840

11 NM5844

21 AH101B

22 BR174

23 NM5751

(BEHIND CONTROL PANEL)

23A NM5751A

NEOPRENE BACKING

24 NM5743

25 NM5744A

26 NM5009

27 NM5038

27A NM5039

28 PEA11

29 NM5759

30 NM5014

TOP STRAP

31 NM4063

12 NM5842

13 BR319

14 BR325

14A BR600

NS AH68

15 AH224

NS AH201

16 NM5714

17 PT064

18 PT021

19 NM5747

19A NM5793

BOTTOM STRAP

32 NM5722

NS NM5010

33 NM4447

34 NM5754

35 NM5757

36 NM5753

37 NM5710A

Comes with Lift Handle & Hinges

38 NA041

39 NM5700

40 NM5750

41 NM5017

41A NM4261

20 NM5110

42 NM5947

KEY PART # DESCRIPTION

PHY094

034 NUT

10-24 NYLOCK SS

(QTY 4)

BARB ½” X 3/8” MPT

AXLE REAR WHEELS

–

22.5”

HOSE ½” ID CLEAR COIL

500PSI PUMP W

ITH MOTOR

205V

PUMP WITH

OUT

MOTOR

M58 1/2HP MOTOR ONLY

BARB 3/8” X ¼” MPT

VACUUM MOTOR 3

STAGE

ELBOW 45DEG ¼” STREET

VACUUM MANIFOLD

ELBOW 90DEG ¼” STREET

VACUUM GASKET

ADAPTER 2” FPT X SPG

GATE VALVE 2” W/ KEEPER

BRACKET SOL/REC TANK

GASKET VACUUM VALVE

BRACKET TERMINAL BLOCKS

SCREW

¼-20 X 3.25” SOCHD SS

TERMINAL BLOCK 6 SPACE

VACU

UM HOSE 2”

– PER INCH

TERMINAL BLOCK 10 SPACE

HOSE CLAMP 2

2.75”

SCREW #6 X ½” PPH SS (QTY 6)

DECAL VAC CONNECTION

FAN GUARD

– WIRE FORMED

SCREW

¼-20 X 2.00” SOCHD SS

NUT 6

32 NYL

OCK SS

NUT

8-32 NYLOCK SS

SCREW 8

32 X ½” PPH SS

SCREW

8-32 X ½” PPH SS

(QTY 6)

FILTER SS

- ¾” FPT

LATCH

- SLIDE

(QTY 2)

BULKHEAD FITTING 3/8”

SCREW

5/16-18 X 3/4

” HXHD SS

ELBOW 90DEG 3/8” STREET

NUT

5/16-18 NYLOCK SS

PP14-806504

ACORN STRAINER ¾” FPT

CASTER 5” (QTY 2)

ADAPTER 2”MPT X H

PVC

LATCH HOOK

- KEEPER

PIPE 2” ABS (13.5”)

SPACER

– LATCH HOOK

CLAMP NYLON 2

2.5”

SCREW 8

32 X ¾” PPH SS(QTY 4)

NUT ¼

20 NYLOCK SS

NIPPLE 3/8” X ¼”

ELBOW 90DEG ¼” STREET

STREET TEE 3/8”

BULKHEAD FITTING ¾” PVC

KEY PART # DESCRIPTION

42A

43 NM5748

44 AP52

45 PT066

46 AV14

47 NM5706

47A PA010

48 NM5728

49 NM5728A

50 NM5141

51 NM5726

52 PA051

67 BR030

68 NM5086

69 PT065

70 BR020

71 BR272

NS BR282

72 NM5712

73 NM5027

74 NM5738

75 NM5730

(QTY 6)

76 NM5732

77 NM5142

53 NM5705

54 NM5133

55 NM5793

56 NM5124

57 NM5752

58 NM5120

59 PFA10

60 NM5720

61 NM5752B

62 NM5752A

63 NM5128

64 NM4261

78 NM5756

79 NM4031

80 NM5124

81 NM5746

82 NM5098

83 BR284

85 NM5727

86 PA029

87 NM5741E

65 BR132

66 BR254

90 BR282

91 NM5742

KEY PART # DESCRIPTION

NIPPLE ¾” X 2” PVC

RIVET

– VAC HOSE END

HOSE ¾” ID CLEAR COIL

ADAPTER 2”FPT X HSLIP ABS

HOSE CLAMP

SPACER UNLOADER MOUNT

PUMP

OUT PUMP

ISOLATOR

– PUMP

MOUNT

PF20381

010 ELBOW 90 ¾” BARB QUAD FTTG

SCREW 5/16

18 X 1” HXHD SS

SCREW 10

24 X 1.25” PPH SS

WASHER 5/16” FLAT FENDER

WASHER #10 FLAT SS

WIRING HARNESS

- UPPER

BARB ¾” X ¾” MPT

NYLON

WIRING HARNESS

- LOWER

ROCKER SWITCH DUAL SPST

DECAL POWER PRIME VALVE

FILTER CAP ASSEMBLY

DECAL DUAL CIRCUIT LIGHT

FLOAT VACUUM SHUTOFF

DECAL NAUTILUS SIDE

HOSE CLAMP W/THUMB SCREW

KIT DUAL CIRCUIT WIRING

SWITCH PANEL PLUG

SCREW 1/4

20 x 5/8” SOC BH SS

BARB ¾” X ¾” FPT

#6 INTERNAL STAR WASHER SS

PHY106

028 RUBBER

VACUUM PLUG

SERIAL NUMBER PLATE

SCREW TEK #10 X 5/8” SS

3/16” INT STAR WASHER SS

CABLE

SLEEVE #7 CABLE CLAMP

GROMMET 3/8”

BARB

½” X ¼” MPT

HOSE CLAMP

MOISTURE BARRIER

1/4” INTERNAL STAR WASHER SS

WASHER ½” FLAT ZINC PL

GASKET VACUUM RISER PIPE

DECAL CSA WARNING

KEY PART # DESCRIPTION

92 NM5744

93 NM5093

94 PH09

95 AP37

97 NM5850

98 NM4255

99 BR048P

100 NM5716

101 NM5735

102 NM5741F

103 NM4472

NS NM5025

NS NM5713

NS NM5709

NS NM5736

NS NM5794

NS NM5792

NS NM5703H

NS NM5701H

NS NM5705A

NS NM5705B

NS NM5711

(QTY 2)

NS NM5758

104 NM5715

105 BR049

106

107 NM4263

108 NM4460

109 NM4462

110 NM4116

111 BR028

112 PH07

113 NM5737

114 NM5433

115 NM5125

NS NM4087

NS NM5434

CONTROL PANEL GROUND LUG

WITH FOUR RIVETS

NS NM5933

FAN GROUND WIRE CONNECT

116 NM5725

117 NM5705C

DESCRIPTION HOSE TYPE LENGTH NOTES

VAC HOSE REC TANK TO MANIFOLD

VAC HOSE VAC 1 TO MANIFOLD

VAC HOSE VAC 2 TO BASE

SOLUTION HOSE SOL TANK TO PUMP TEE FITTING

SOLUTION HOSE PUMP TO PUMP TEE FITTING

SOLUTION HOSE UNLOADER TO SOL TANK

HP HOSE #1 PUMP TO REGULATOR

HP HOSE #2 PUMP TO GAUGE

HP HOSE #3 REGULATOR TO HP HOSE #4 HP HOSE #4 OUTLET QC TO HP HOSE #3

DRAIN HOSE REC TANK TO PUMP-OUT PUMP

DRAIN HOSE PUMP-OUT PUMP TO PUMP-OUT OUTLET FITTING

∗ FITTINGS ADDED BETWEEN HOSE #4 AND CONTROL PANEL:

(1) NM5751, (2) BR174 & (1) BR282

2” VAC – NM5726 SOLD PER FT

½” ID CLEAR COIL NM5086 SOLD PER INCH ½” ID CLEAR COIL NM5086 SOLD PER INCH ½” ID CLEAR COIL NM5086 SOLD PER INCH HP PULSE SOLD ASSEMBLED

HP PULSE SOLD ASSEMBLED

HP PULSE SOLD ASSEMBLED ¼” HP HYDROCOIL AH79CF SOLD PER FT

¾” CLEAR COIL NM5093 SOLD PER INCH ¾” CLEAR COIL NM5093 SOLD PER INCH

29” TANK END:

1 - NM5713 2 – NM5025 VAC END: HOSE CLAMP PA051

9.5” VAC END: HOSE CLAMP PA051 MANIFOLD END: HOSE CLAMP NM4472

9.5” BOTH ENDS: HOSE CLAMP PA051

18” BOTH ENDS:

HOSE CLAMP PH07

12” (QTY 2) BOTH ENDS:

HOSE CLAMP PH07

32” BOTH ENDS:

HOSE CLAMP PH07

50” ITEM# 30844

REG END: ¼” MS PUMP END: 3/8” MS

45” ITEM# PH509

GAUGE END: ¼” MS PUMP END: 3/8” MS

32” ITEM# 30845

BOTH ENDS: 1/4” MS

39” QC END:

XAF1 (M) * JOINT END: XAF2 (FM)

14” BOTH ENDS:

HOSE CLAMP PH09

13” BOTH ENDS:

HOSE CLAMP PH09

Section

Limited Warranty

Your Nautilus MX3-500 is designed to give you years of reliable service. If a problem should arise use the troubleshooting section in the operation manual to diagnose and correct the problem if possible.

If you are unable to determine the cause or solution to the problem contact your distributor or Hydro-Force for assistance.

Hydro-Force warrants the roto-molded tanks and base of the Nautilus MX3-500 to be free from defects in material or workmanship for five years from the date of purchase. All other components of the Nautilus MX3-500 are warranted to be free of defects in material and workmanship for one year from the date of purchase.

During the warranty period, Hydro-Force will, at its option, repair or replace components which prove to be defective. This warranty does not provide for replacement of complete units due to defective components. Any costs for transportation or related service labor are not covered in this warranty. Replacement parts are warranted only for the remainder of the original warranty period.

This warranty shall not apply to defects resulting from improper operation, lack of maintenance, unauthorized modification, chemical incompatibility, misuse, abuse or exposure to freezing temperature conditions. It does not cover normal wear items such as o-rings, valve seals, pump seals, hoses, jets, cords, batteries, or other items which require replacement as a result of ordinary usage.

To obtain warranty service for the Nautilus MX3-500, contact your distributor or Hydro-Force. If the extractor must be returned to Hydro-Force or an authorized service center, the purchaser shall prepay shipping charges for products returned for warranty service. No returned items will be accepted by HydroForce without prior authorization. All returns must have a return authorization number, issued by HydroForce, clearly marked on the exterior of the package.

Hydro-Force makes no other warranty either expressed or implied with respect to this product.

The remedies provided herein are the purchaser’s sole and exclusive remedies. In no event shall Hydro-Force be liable for any direct, indirect, special, incidental or consequential damages.

This warranty gives you specific legal rights. You may also have other rights which vary from jurisdiction to jurisdiction.

Nautilus MX3-500 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual