Nautilus Extreme MXE-500 User manual

1
LMANN21
REVISED: 01-29-2015
MX
E
-
500
Operating Manual
EXTREME

2
MXE-500 Operating Manual
TABLE OF CONTENTS
TOPIC PAGE #
•Intro uction 3
•Technical Specifications 4
•Optional Equipment 5
SECTION 1: Operational Safety
•Electrical Safety 6
•Mechanical Safety 7
SECTION 2: Operation Proce ures
•Vacuum Connections 8
•Electrical Supply 9
•Water Supply & Chemicals 10
•Pump Priming & Solution Hose 13
•Vacuum Hose 14
•Foam Downer 15
•Pump-Out System 16
•Pressure A justments 17
•Shut own Proce ures 18
•Accessory Storage 19
•Troubleshooting 20
•Solution Flow Path 23
•Wiring Diagrams 24
SECTION 3: Maintenance/ Technical
•Maintenance 27
•Drawings & Parts Lists
oPump 36
oAuto-Fill 37
oPressure Regulator 39
oPump-Out Pump 40
oParts Pictures 41
oParts List 52
oHose List 55
•Warranty 56

3
Introduction
C ngratulati ns n y ur purchase f the Hydr -F rce Nautilus Extreme MXE-
500. The Nautilus Extreme MXE-500 is designed t give truckm unt-level
perf rmance in a p rtable machine that c mbines versatility with ease f
transp rt. Years f experience, engineering, and planning have g ne int the
design and manufacturing f the Nautilus Extreme MXE-500. We take a great
deal f pride in the Nautilus Extreme MXE-500; ur g al is n less than y ur
c mplete satisfacti n.
The Hy ro-Force Nautilus Extreme MXE-500 is inten e for commercial
use only.
This manual will pr vide users with the kn wledge required t perate the
Nautilus Extreme MXE-500 safely, t understand h w t pr perly perate and
maintain the machine, and t ensure that the equipment perates at its maximum
perf rmance level.
All users must rea an un erstan this manual completely before
operating the machine.
Always maintain this manual in legible c nditi n adjacent t the Nautilus Extreme
MXE-500, r place in a secure l cati n f r future reference.
Any questi ns pertaining t the perating r servicing f this unit sh uld be
directed t y ur nearest Hydr -F rce distribut r.
This manual is written specifically f r the Nautilus Extreme MXE-500 p rtable
extract r units manufactured by:
Hydr -F rce
4282 S uth 590 West
Salt Lake City, UT 84123
801-268-2673
801-268-3856 FAX
Inf rmati n in this manual is subject t change with ut n tice and d es n t
represent a c mmitment n the part f Hydr -F rce r its parent r affiliated
c mpanies.

4
Technical Specifications
Nautilus Extreme MXE-500 High Pressure Extractor
Height: 42-1/4”
Length: 34-3/8”
Wi th: 23-3/8”
Weight: 146 lbs.
Solution Tank Capacity: 12 gallon
Recovery Tank Capacity: 12 gallon
Solution Pump: Pump-Tec #207V pump with 1/2 HP Motor - 0-500 psi – 1.06 gpm
Vacuum Motors: Two AMETEK Lamb 8.4” iameter 2-Stage – tangential ischarge
Can be operate in series or parallel configuration
Pump-out Pump: Little Giant 120VAC 8-20 gpm
(Optional) Maximum psi 11.4 – Maximum pumping height 26 ft.
Power Draw: Cor #1 – 21.48 amp wi e open / 11.58amp full loa
Cor #2 – 13.70amp wi e open / 7.40amp full loa
(A 5.00amps to Cor #2 for units with optional Pump-Out Pump)
Stan ar 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 a apter
Carpet Wan : 1-1/2” SS Dual Jet S-Ben Wan – AW29
Accessory Mounting Har ware: Four 1/4-20 x 5/8” SS Screws an Washers
HP Solution Hose: 25’ x 1/4” with 1/4” male & female quick connects
Power Cor s: 2 – 25’ x 12gauge with male & female plug en s
Electrical: Dual Circuit In icator
10amp Pump Circuit Breaker
Two Internal Component Cooling Fans
Optional Features:
Auto Fill System with chemical raw:
Metering Tip Kit: 14 ifferent tips for changing chemical ilution rate
Water Supply Hose: 50’ x 3/8” with 1/4” female quick connect &
Female gar en hose fitting
Auto Pump-out System:
Pump-out Hose: 50’ x 3/4” with male & female gar en hose fittings

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A itional / Optional Equipment
Wan Gli e – Delrin AW529D
Wan Gli e – Teflon AW529T
18” Bottom Velcro Strap for Wan Hol er NM5841
Hy-Dry Deluxe Upholstery Tool: AW50D
Flash Xtractor II: AC002
Gekko Han le Assembly: AR51A
Gekko 4” Tool Hea : AR51D
SX-7 Tool Hea : AR51G
Gekko Han Tool: AR53
1-1/2” Vacuum Hose: (Sol 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
Hy ro Filter II: AC10
Replacement Screen for Hy ro-Filter II: AC10C
Metering Tip Kit: PDE001
12/3 X 25’ Power Cor : AX32
12/3 X 50’ GFCI Power Cor : NM4407A
Belt Pack AX108
AC10
AX108
AR51A
AW50
NM4407A
AR51G
AR51
AR53
AC002

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Safety
This machine is an electrical appliance.
Care must be taken to re uce the risk of electrical shock.
READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE OPERATING THE MXE-500.
•T reduce the risk f pr perty damage r injury, repairs t electrical systems sh uld nly be perf rmed by
experienced technicians. C ntact y ur distribut r f r assistance. Unplug machine p wer c rd fr m utlet
bef re perf rming any repairs n the extract r.
•This machine shall be gr unded while in use t pr tect the perat r fr m electric sh ck. The machine is
pr vided with a three-c nduct r c rd and a three-c ntact gr unding type attachment plug t fit the
pr per gr unding type receptacle. The green ( r green and yell w) c nduct r in the c rd is the gr unding
wire. Never c nnect this wire t ther than the gr unding pin f the attachment plug.
•This machine is f r use n a n minal 120-v lt circuit and
has a gr unding plug that resembles the plug illustrated in
the sketch t the right. Make sure that the machine is
c nnected t an utlet having the same c nfigurati n as
the plug. N plug adapter sh uld be used with this
machine.
•The p wer c rds supplied with this machine are pr perly
sized t handle the electrical l ad f this machine and
pr perly gr unded as described ab ve. Any extensi n
c rds used with this machine must be similarly sized with
an equal r greater l ad rating and gr unded t assure
safe perati n. A pr perly sized r rated GFCI pr tected c rd can be used f r additi nal pr tecti n.
•The tw p wer c rds must be plugged int separate circuits during perati n. The Dual Circuit Indicat r will
ensure that the tw c rds are perating n different circuits (see Page 9 f r details.)
•D n t use the MXE-500 utd rs, in standing water r n wet surfaces. D n t st re the MXE-500 in wet
c nditi ns. If extract r is leaking, unplug machine p wer c rds fr m utlets bef re appr aching r t uching
machine.
•D n t unplug p wer c rd by pulling n the c rd. Grasp the plug end when unplugging the c rd. D n t pull
the extract r by the c rd. If c rd r plug is damaged, d n t use c rd. Replace with new c rd r repair as
needed bef re use.
•Overl aded circuit may n t always trip circuit breaker. Reduced v ltage t a machine n an verl aded circuit
will prevent c mp nents fr m perating pr perly.
Section
1

7
This machine must be protecte from con itions which
may amage the pump, tank, hoses an other components.
•Freezing of water in this machine will cause serious amage. The Nautilus Extreme MXE-500, s luti n
h ses, and t ls must be pr tected fr m freezing temperature. St re, transp rt, and use this equipment nly in
temperatures well ab ve freezing. (32ºF r 0ºC). If y u suspect the Nautilus Extreme MXE-500 has been
fr zen, d n t plug in r turn n machine until y u are sure it has thawed c mpletely.
•If the equipment cann t be st red r transp rted in a warm envir nment, it can be guarded fr m freezing by
running an anti-freeze s luti n thr ugh the inc ming water lines, chemical feed system, s luti n pump, s luti n
lines, t ls and pump- ut pump. The machine is filled at the fact ry with anti-freeze t eliminate damage during
shipment in c ld weather.
oThe anti-freeze s luti n must be c mpletely flushed fr m the machine bef re it is returned t service.
•The MXE-500 must n t be used t pick up flammable r c mbustible materials r used in areas where these
materials may be present.
•S lvent-based r water-based s luti ns c ntaining s lvents may damage the pump, h ses, and ther
c mp nents. D n t assume chemical c mpatibility. C ntact y ur distribut r r Hydr -F rce if y u have
questi ns regarding the c mpatibility f y ur chemicals with the machine.
•D n t clean with s luti ns that are at temperatures ab ve 130ºF.
•Rinse the s luti n tank, chemical system, and pump with fresh water after each day’s use.
•D n t all w pump t run dry. Always maintain adequate s luti n level t supply s luti n pump.
•HP h ses may rupture if w rn r damaged. D n t use HP s luti n h ses if h se c vering is cut, bulging, r
therwise damaged. Examine HP s luti n h ses daily and replace r repair h ses as needed.
•Use a Hydr -Filter II and clean the rec very tank daily t keep pump- ut filter and pump fr m bec ming
cl gged. St re the Nautilus Extreme MXE-500 with the rec very tank lid pen.
•Keep Vacuum Inlet Filter clean and check fl at f r pr per perati n. D n t perate the Nautilus Extreme
MXE-500 with ut the Vacuum Inlet Filter in place. Use efoamer to eliminate foam buil -up uring
cleaning an prevent foam/moisture from entering vacuums.
Use common sense to protect yourself an others while using this equipment.
•Keep pets and children away fr m the machine when in use.
•Keep all b dy parts, hair, and l se cl thing away fr m penings and m ving parts. Always wear appr priate
w rk cl thing and safety equipment when perating unit.
•Use extra care when cleaning n stairs. Wet carpet n stairs can be slippery.
•D n t m ve the MXE-500 up r d wn stairs when tanks are full f water. Drain s luti n and rec very tanks,
and secure base latches bef re m ving unit up r d wn stairs. Lift using nly the machine handles designed &
designated f r m ving and lifting.
•Water may be spilled, drip, r be exhausted fr m vacuums during perati n. Place unit in area where water will
n t cause damage r use dr p cl th t pr tect surfaces.

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Vacuum Connections
The Nautilus Extreme MXE-500 has a unique vacuum system which
allows you to connect your vacuums in either parallel or in series.
Vacuum connections can be change quickly, without tools. While
there is ebate on which vacuum alignment provi es the best
extraction, this much is true:
•Two vacuums in series: The vacuum lift is increase 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 increase by 2.0
times the rating of a single vacuum, while the lift says the same.
Air flow is usually measure in cubic feet per minute, in icate as
CFM.
Lift is usually measure in inches of water column, in icate as
“H2O or “WC.
To connect vacuums in parallel:
1. C nnect the discharge / exhaust h se fr m vacuum #1 t the exhaust
pipe n machine base.
2. Place the rubber st pper int the vacuum inlet p rt f vacuum
manif ld number tw .
3. Open vacuum gate valve and attach the Gatekeeper t prevent
accidental valve cl sure.
When c nnected in parallel, b th vacuums must be running during cleaning.
Vacuums cann t be perated individually.
To connect vacuums in series:
1. C nnect the discharge / exhaust h se fr m vacuum #1 t the vacuum
inlet p rt f vacuum manif ld number tw .
2. Place rubber st pper int the exhaust pipe n machine base.
3. Rem ve Gatekeeper and cl se vacuum gate valve.
When c nnected in series vacuums can be perated 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.
Section
2
GATEKEEPER

9
Operation Procedures
Knowle ge of the proper operation of the Nautilus Extreme MXE-500 is
require to ensure user safety an efficient performance of the extractor.
SET UP AND OPERATION
1. Electrical Cor s:
Tw 25’ p wer c rds are supplied with the Nautilus Extreme MXE-500. C rd #1 p wers vacuum #1, the
S luti n Pump and the c ling fan; C rd #2 p wers vacuum #2 and the waste pump if s equipped. The
amperage required by each c rd requires that the tw c rds be plugged int separate circuits:
•C rd #1 (Left side) will supply p wer t vacuum #1, s luti n pump and c ling fan.
•C rd #2 (Right side) will supply p wer t vacuum #2 and the pti nal waste pump if s equipped.
This machine sh uld be able t run when b th c rds are c nnected t separate 15amp circuits. If ther
electrical equipment is c nnected t the circuit during perati n; 20amp circuits may be required.
20amp circuits are usually foun in kitchens an bathrooms. An verl aded circuit will n t always trip
the circuit breaker immediately, but may n t pr vide sufficient v ltage f r pr per perati n and the breaker
may trip eventually.
Plug the tw p wer c rds int tw utlets fr m different circuits. If the Dual Circuit Indicat r green light
fails t light, y u may be n the same circuit and may need t select a different plug f r ne f the c rds. If
the Dual Circuit Indicat r green light c mes n, y u are plugged int tw different circuits. Pr ceed with
y ur set-up pr cedure.
(Dual Circuit In icator light may take up to 30 secon s to recognize the two circuits an turn ON.)
If a circuit breaker trips r the pump circuit breaker trips during perati n, reset the breakers and m ve the
c rd t an ther utlet as needed.
Power Cord – AX32
25’ – 12 gauge M-F Plugs
Cord #1 Cord #2Dual Circuit Indicator Light

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2A. Water Supply & Chemical Mixing– Manual Fill:
•P ur up t 12 gall ns f h t water int the s luti n tank at the fr nt f the machine. The water
temperature cannot excee 130°
°°
°F.
•Measure and add the appr priate am unt f the desired liquid chemical t the water in the s luti n tank.
The am unt f chemical will vary depending n the type f chemical used, the am unt f water in the
tank, and the material being cleaned; c nsult the chemical packaging f r specific mixture rati s.
•P wdered chemicals sh uld be diss lved in water bef re adding t the water in the s luti n 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, an refill the tank. Running the pump ry will amage the pump an voi the
warranty.
2B. Water Supply & Chemical Dilution – Optional Auto-Fill System:
•The chemical diluti n rate is c ntr lled by the metering tip, and the diluti n rate can nly be changed by
changing the metering tip (See “H w t Change the Metering Tip” n Page 11 f r instructi ns.)
Chemical Fee Setup:
•Rem ve the chemical feed h se fr m the s luti n tank. Make sure fl at is attached t valve and hanging
freely, ab ve the b tt m f the s luti n tank. Adjust fl at height t maintain adequate water level.
•Place the end f the chemical feed h se int a c ntainer f liquid chemical.
•If the tip is rem ved, and the pr p rti ning system perated with n tip, the diluti n rate will be 8:1 (the
equivalent t adding 16-1/4 z f chemical t each gall n f water.)
•The rec mmended tip f r use with the Nautilus Extreme MXE-500 is the turqu ise tip with a diluti n
rate f 256:1. This means that f r each gall n f water fl wing int the machine, 1/2 unce f chemical
will be added.
•If a fresh water rinse with no chemical is esire , simply leave the chemical fee hose insi e the
solution tank.
Proportioning Valve
Chemical Feed Hose
Float Hanger
Float
Pour appropriate amount of hot water into
solut
ion tank
Add appropriate amount of chemical to water
in solution tank
Float Valve

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How to Change the Metering Tip:
•Rem ve the chemical feed h se fr m the barb n the side f the pr p rti ning valve.
•Unscrew and rem ve the ld tip.
•Screw in the pr per tip f r y ur chemical tip and place the h se back n the barb
Metering Tip Kit (Hy ro-Force Item# PDE001) c ntains 14 different c l red metering tips, all wing
diluti n rates fr m 11:1 up t 427:1. Refer t the chart bel w t select the tip that meets the diluti n rate f r
y ur chemical applicati n.
•F r example: if y u require 1-1/2 unces f chemical per gall n f water, change t the red metering tip
with the diluti n rate f 85:1.
•The diluti n rates are based n chemicals with water-like visc sity. Thicker (m re visc us) chemicals will
dilute at a different rate.
•F r p wdered chemicals, a liquid c ncentrate must be made. Mix the c ncentrate acc rding t the
manufacturer’s directi ns, and then select the appr priate metering tip.
•C ntact y ur distribut r r Hydr -F rce if y u have questi ns ab ut y ur chemical.
Metering Tip Application Chart:
Metering Tip Kit – PDE001
Turquoise Tip
Dilution 256 - 1
Red Tip
Dilution 85 - 1
TIP
COLOR
CHEMICAL DILUTION RATES
OZ / GAL (RATIO)
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)
Proportioning Valve
Chemical Feed Hose

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Water Supply:
•Once the c rrect metering tip is in place:
oC nnect the Aut -Fill Water Supply H se t the water inlet (the male quick-c nnect n the fr nt
f the machine.)
oC nnect the ther end f the h se t a water faucet, and then turn n the water.
•H t water can be used as l ng as the temperature d es n t exceed 130°F.
•Faucet adapter kits (Hydr -F rce item #AX21 & AX22) are available that all w c nnecti n t different
types f faucets if needed.
To a just the water level in the solution tank:
•Turn ff the water supply.
•Adjust the length f the chain c nnecting the fl at b ttle t
the fl at valve. Unh k the fl at fr m the beaded chain n
the valve. Unsnap the h k fr m the beaded chain n the
fl at.
M ve the b ttle d wn t decrease the water level.
M ve the b ttle up t increase the water level.
•Snap the back nt the fl at chain & h k the fl at back
nt the valve chain.
•Turn the water supply back n.
If the chemical is n t drawing, r if the tank is n t filling
r is verfl wing, refer t the tr uble sh ting guide, r
c ntact y ur distribut r f r assistance.
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 Float Valve
Float Bottle
Connect the Auto-Fill Water Supply Hose to a
faucet and turn on the water
Chemical
Feed Hose
Float Hanger Hook

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3. Priming the High-Pressure Pump:
Once water is in the s luti n tank, the s luti n pump must be primed:
•There is a priming h se included with the machine. C nnect the priming h se t the s luti n utlet –
female quick c nnect n the fr nt f the machine.
•Turn n b th vacuums and the s luti n pump. Insert the end f the priming h se int the vacuum
inlet p rt n the fr nt f the machine and cup y ur hand ar und the h se t bl ck ff the vacuum
inlet with y ur hand. The vacuum will pull s luti n thr ugh the pump and priming h se int the
vacuum tank.
•Turn ff the pump and vacuums. Disc nnect the priming h se. Y u can n w c ntinue y ur set-up.
As l ng as there is s luti n in the tank, the pump sh uld remain primed.
If the pump still d es n t prime, r if fl w is l w r unsteady, check the h se fr m the s luti n tank t the
pump (as well as the filter) f r cl gging, kinks, r restricti ns. Clean r replace h se and/ r filter and repeat
the priming pr cedure.
If y u are having tr uble with the pump, refer t the tr uble sh ting guide r c ntact y ur distribut r f r
advice r assistance.
4. Connection of Solution Hose:
C nnect the high pressure s luti n h se t the s luti n utlet (female quick c nnect n the fr nt f the
machine). C nnect the ther end f the h se t the male quick c nnect n the cleaning t l. When y u are
ready t start cleaning, turn the s luti n pump switch t the ON p siti n
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.
HP Solution Hose Assembly – AH79D
1/4” id X 25’ with M-F Quick Connects
PUMP PRIMING HOSE – NM5080

14
5. Connection of Vacuum Hoses:
The vacuum c nnecti n p rt n the machine can be either a 2” h se barb r 2” male Flash Cuff. B th are
included with y ur Nautilus Extreme MXE-500. The desired c nnect r can be threaded int the vacuum p rt
n the fr nt f the machine.
A 2” female Flash Cuff 1-1/2” h se adapter is als included t c nnect the 1-1/2” vacuum h se t the 2”
male Flash Cuff n the machine.
A 2” h se cuff f r 1-1/2” vacuum h se is included t c nnect the 1-1/2” vacuum h se t the 2” h se barb
n the machine.
With the pr per cuff attached t the 25’ Vacuum H se, the 25’ vacuum h se is then c nnected t the vacuum
c nnecti n p rt n the Nautilus Extreme MXE-500. The ther end with the 1-1/2” cuff is c nnected t the
cleaning t l.
When ready t begin cleaning, turn b th vacuum switches t the ON p siti n. If c nnected in series, the
Nautilus Extreme MXE-500 can be perated with nly ne vacuum f r cleaning delicate fabrics. (See
Vacuum C nnecti n instructi ns n Page 8) In m st situati ns y u will turn b th vacuum switches ON.
Vacuum H se c nnecti n with standard barb
and vinyl cuff
Vacuum H se c nnecti n with Flash Cuffs

15
6. Optional Foam Downer:
A key pr blem with p rtable extract rs is that they have small tanks where f am dissipates sl wly. If y u
have had issues with f am r are anticipating f aming pr blems, y u will want t c nnect a F am D wner.
F am can be drawn int the vacuums bef re the vacuum shut ff cl ses. F am and water bl wing ut the
vacuum makes a big mess, can decrease vacuum lift and damage the vacuum m t rs.
The F am D wner kills f am as waste water enters the machine. Place a c ntainer f liquid def amer n the
t p f y ur Nautilus Extreme MXE-500. The vacuum air fl w siph ns the liquid def amer thr ugh F am
D wner int the vacuum tank, breaking d wn the f am bef re it can cause any damage r make a mess.
•M unts and is ready t use in sec nds
•Uses def amer very ec n mically
•NO LABOR is inv lved t spray r spread def amer – it’s all aut matic
•Keeps silic ne def amers ff the fl r where they can cause res iling pr blems
The F am D wner is an attachment that all ws the vacuum t draw a small am unt f def amer in a
c nstant sl w fl w int the waste tank f the Nautilus. We rec mmend using a diluted def aming s luti n f
f ur unces f def amer t ne gall n f water (1-32). Place the draw tube int the gall n f diluted
def amer and pen the needle valve ne half turn as y ur starting p int. If this is n t sufficient t break
d wn the f am y u can pen the valve m re r add m re def amer t the water t make a str nger s luti n.
With the valve pen ne half turn it will take appr ximately ne half h ur t drain the gall n f diluted
def aming s luti n.
F
OAM
DOWNER
AH17
FOAM DOWNER cann t be used
with 2” Male Flash Cuff c nnect r
n machine. Rem ve 2” Male Flash
Cuff and install 2” h se barb as
needed.
HOSE HOOK
AH95

16
7. Connection of Pump-Out Hose:
The pump- ut h se is a 50’ secti n f 3/4” garden h se. (Use f smaller diameter h se may reduce fl w.)
•Rem ve the cap fr m the pump- ut utlet fitting n the back f the machine.
•C nnect the pump- ut h se t the utlet fitting.
•Place the ther end f the h se in a c mm de r drain c nnected t the sanitary sewer system.
•Secure h se end t prevent m vement during pumping.
Use efoamer to prevent foam buil -up in recovery tank uring cleaning an to keep
foam/moisture from entering vacuums.
Use Hy ro Filter II inline filter to trap an remove ebris from the waste water before it
enters the recovery tank. Excess ebris in recovery tank may clog Pump-Out filter. Clean
Filter as nee e uring use.
Do not turn the Waste Pump switch ON unless pump-out hose is connecte an has been
route to a proper rain.
The Waste Pump uses a float switch an oes not start pumping until the water level in the
tank is high enough to lift the float switch. The pump will turn ON & OFF uring normal
operation. Pump will be amage if allowe to run ry.
When ready t begin cleaning, turn the Waste Pump switch t the ON p siti n.
If n t using the waste pump- ut, the pump- ut h se d es n t need t be c nnected. When the rec very tank
fills during cleaning, the fl at assembly in the vacuum inlet filter will rise and will aut matically shut ff the
vacuum air fl w t prevent the rec very tank fr m verfilling and waste water fr m getting int the vacuums.
When this ccurs:
•Immediately shut ff the vacuum switches.
•Drain the rec very tank.
oTurn ff the pump switch while draining the tank.
oTurn pump switch back up n resumpti n f cleaning.
•Cl se the drain valve and turn the vacuum switches back n
when ready t resume cleaning.
If the pump- ut r vacuum shut ff is n t w rking pr perly, refer t
the tr uble sh ting guide r c ntact y ur distribut r f r advice r
assistance.
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.
Float Shutoff Assembly
Draining the Rec very Tank

17
7. Pressure A justment:
T make it easier t check and adjust the pressure, the pressure gauge and the pressure regulat r are m unted
n the c ntr l panel n the fr nt f the machine. When the high-pressure s luti n pump is n and primed,
pressure will sh w n the gauge.
•T decrease the pressure, turn the brass kn b n the pressure regulat r t the left (c unter-
cl ckwise.)
•T increase the pressure, turn the brass kn b n the pressure regulat r t the right (cl ckwise.)
•T adjust pressure t y ur t l and surface requirements:
oCheck the pressure n the gauge.
oRe-adjust as needed t set the machine at the desired pressure.
oCh se the pressure setting that best meets y ur type f cleaning.
Pressure gauge & Regulator/Unloader
To increase the solution pressure, turn the
regulator knob clockwise.
To decrease the solution pressure, turn the
regulator knob counter-clockwise.
The maximum pressure setting is 500psi; h wever,
the highest pressure attained is dependent n the
am unt f water fl w at the t l:
•Smaller jets and l wer fl w will all w f r
higher pressure at the t l.
•Larger jets and higher fl w will l wer the
maximum pressure attained at the t l.
The desired setting will depend n the type f
cleaning and t l used. F r example:
•Carpet Cleaning with 2-jet AW29 wand: 400psi
•Uph lstery Cleaning with AW50D t l: 200psi
If adjusting r maintaining pressure bec mes a
pr blem, refer t the tr uble sh ting guide r
c ntact y ur distribut r f r advice r assistance.

18
Shut own Proce ures:
•If using the pti nal aut -fill system, turn the water supply ff bef re finishing each j b. This will all w
use f the water and chemical already in the tank, and will reduce the am unt f excess water t be
disp sed f later.
•When finished cleaning, turn ff all switches.
•If the pti nal aut -fill system was used and there is still water in the s luti n tank, push the fl at d wn
t release the water inlet h se pressure bef re disc nnecting the h se fr m the faucet. Disc nnect the
water inlet h se fr m the quick-c nnect n the fr nt f the machine.
•Disc nnect the s luti n h se and vacuum h se fr m the cleaning t l. Pull valve trigger t release
pressure fr m the h se bef re disc nnecting s luti n h se fr m cleaning t l.
•If a Hydr Filter II inline filter was used, disc nnect the Hydr -Filter II fr m the vacuum h ses and clean
the filter as needed. Replacement filter screens are available
(AC10C.)
•Disc nnect the vacuum h se and s luti n h se fr m the machine.
•If water remains in the s luti n tank, use the vacuum h se and
vacuum the excess water fr m the tank.
•If the pti nal aut -fill system was utilized, place the chemical feed
h se back int the s luti n tank.
•If the pti nal Aut waste pump- ut system was used:
oTurn the waste pump switch “ n” & lift fl at switch t pump ut any remaining water fr m the
rec very tank.
oTurn switch ff, rem ve the pump- ut h se fr m the utlet fitting and replace the cap.
oR ll up h se t ward drain t rem ve remaining water fr m h se.
oC nnect ends f h se t gether t prevent dirty water fr m dripping fr m h se during transp rt.
•Disc nnect the p wer c rds fr m the utlets and fr m the machine.
•Rem ve the fl at shut ff assembly fr m the rec very tank and clean
vacuum shut ff filter as needed.
•Clean Pump-Out Pump and Fl at Switch.
Replace shut ff assembly and tank lid.
•Drain any remaining water fr m the rec very tank
and disp se in sanitary drain. D n t use the same
bucket t drain the tank that y u use t fill the tank.
•R ll up all h ses and c rds.
C llect and st re extract r, all t ls, and access ries.

19
Accessory Storage Options:
The Nautilus Extreme MXE-500 is designed t make it
easier f r the perat r t transp rt the machine and the
m st c mm n cleaning access ries.
Bucket & Sprayer Storage
The t p f the Nautilus Extreme MXE-500 is sized and
recessed t h ld a five gall n bucket r tw ne-gall n
chemical b ttles as well as tw 2QT sprayers.
Power Cor Storage
The back f the Nautilus Extreme MXE-500 has tw sets
f c rd wraps t h ld tw 12/3 x 25’ p wer c rds.
Carpet Wan Storage
The fr nt f the Nautilus Extreme MXE-500 is designed
t h ld a S-Bend Carpet wand and has tw straps t h ld
it securely.
Opti nal strap f r larger wands available
Other Tool & Hose Storage
Each side f the Nautilus Extreme MXE-500 has a set f
m lded in threaded inserts t which h lders can be
attached t h ld ther access ries r supplies making it
much easier t m ve ar und. F ur 1/4-20 x 5/8”
m unting screws & washers are included.
M lded in Threaded Inserts
f r Side M unt H lders
Wand H lder Straps

20
Troubleshooting –
Nautilus Extreme MXE-500
Problem
Cause
Solution
Machine not Building circuit breaker tripped. Reset breakers or move cords to other outlets
turning on - Faulty power cord Replace cord (AX32)
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 (AX32)
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 (PT068)
Pump seized - trips breaker
Repair or replace pump head & bearing (PT065) - Check
motor and/or replace complete pump & motor assy. (AP61)
Low Solution Jets too large for pressure desired
Check jets size & flow rates use smaller jets or lower
pressure
Pressure Jets worn allowing too much flow Replace jets
And / or Solution inlet filter plugged Clean or replace filter
Pulsation Hose from solution tank restricted Repair or replace hose
Pump intake hose or fittings
leaking Repair or replace hose. Tighten clamps or replace fittings
Pressure regulator sticking Lube regulator piston – PAGE 33
Pressure regulator faulty Repair or replace pressure regulator (PT021)
Filter screen or jets plugged on
tool Clean out filter or jets
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 AP61)
Pressure Gauge faulty Replace gauge (PT064)
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
*
: 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.
Section
2
Troubleshooting