13655 Stowe Dr. Poway, CA 92064 • P: (858) 679-1191 • F: (858) 726-6005
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Introduction
Dear Customer:
Congratulations on the purchase of your new Prep Center S™. As technology
continues to develop you can work condently knowing that both Mytee Prod-
ucts and its employees are equally dedicated to developing with the industry
and its advances.
Like any other piece of machinery or technology, the Prep Center S™ also requires proper maintenance and care to keep the product working over extend-
ed use. Neglecting your machine, abusing it or not operating it properly can
void its warranty and prevent the machine from performing to the quality and
standard you’d expect out of the Mytee Products line.
If you have any warranty concerns or questions, please review this manual
thoroughly or do not hesitate to contact your distributor. If there are questions
regarding maintenance, replacement, or ordering parts please contact an
authorized Mytee Products Service Center. To see an updated list please visit
our website at http://www.mytee.com/support/service-centers.
Before using your Mytee product, please read this manual thoroughly.
Sincerely,
Mytee Customer Care Dept.
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Page 3
Table of Contents
Important Safety Information
1
2
At a Glance6
1.1 - Technical Specications6
1.2 - Included with the Prep Center S™6
1.3 - Prep Center S™ Features7
1.4 - Prep Center S™ Switch Plate8
Machine Operation9
2.1 - Powering the Prep Center S™9
2.2 - Connecting Vacuum and Solution Hoses9
2.3 - Connecting Shop Air Line9
2.4 - Filling the Solution Tank9
2.5 - Dry Vacuuming9
2.6 - Hot Water Extraction with the Prep Center S™10
2.7 - Using the Blower Attachment10
4
2.8 - Using Auxiliary Chemical Bottles10
2.9 - Emptying the Recovery Tank10
2.10 - Storage10
3
4
Troubleshooting11
3.1 - Vacuum Troubleshooting11
3.2 - Pump Troubleshooting11
3.3 - Heater Troubleshooting13
Available Accessories14
3
Page 4
Important Safety Information
Grounding Instructions
This machine must be grounded. If it should malfunction
or breakdown, grounding provides a path of least resistance for electrical shock. This machine is equipped with
a cord having an equipment-grounding conductor and
grounding plug. The plug must be plugged into an appro-
priate outlet that is properly installed in accordance with
all local code and ordinances. Do not remove ground pin;
if missing, replace plug before use.
Improper installation of the equipment-grounding conduc-
tor can result in a risk of electric shock. Be sure to check
with a qualied electrician or service person if you are in
doubt as to whether the outlet is properly grounded. If
the plug will not t in the outlet do not modify either the
plug nor the machine’s cord, instead have a proper outlet
installed by a qualied technician.
This machine is for use on a nominal 120-volt circuit and
with a grounding plug similar to the one in Figure 1 below.
If a proper outlet is not available, follow the illustrations of
Figure 2 & 3 to install a temporary-grounding plug. This
temporary work-around should be used only until a proper
outlet (Figure 1) can be installed by a qualied electrician.
When and if this type of adapter is employed, screw the
adapter’s extended tab into place with a metal screw.
However, grounding adapters are not approved for use in
Canada.
Again, be sure to check the grounding pin for damages
and replace if necessary.
Parts and Service
Please contact a Mytee service personnel or Mytee
authorized Service Center using Mytee original replacement parts and accessories for repairs are needing to be
performed. When and if calling Mytee for support, please
have your Model and Serial Number available for faster
assistance.
Name Plate
The Model and Serial Number are located on the lower
half of the back of the machine near the power plugs and
will be required for ordering replacement parts. You can
use the space provided on the front of this manual to note
down both for future referencing.
Unpacking the Machine
When your new machine is delivered, please carefully inspect both the shipping carton and the machine for damages. If damage is evident, save both the shipping carton
and machine so that the delivering carrier can inspect it.
Contact the carrier immediately to le a freight claim if
there has been any damage.
Caution and Warnings
Symbols
Mytee uses the symbols below to signal potentially dan-
gerous conditions. Always read this information carefully
and take the necessary steps to protect personnel and
pr ope r t y.
The Green, or Green-Yellow, wire in the cord is the
grounding wire. When replacing a plug, this wire must be
attached to only the grounding pin.
DO NOT use extension cords.
Please Note for America use only.
Grounding Pin
Grounded Outlet
Metal
Screw
Grounded Outlet Box
Figure 1
Adapter
Tab for Grounding
Screw
Figure 2Figure 3
Is used to warn of immediate hazards that will cause severe personal injury or death.
Is used to call attention to a situation that could cause
severe personal injury.
Is used to call attention to a situation that could cause
minor personal injury or damage to the machine or other
property. When using an electrical appliance, basic precautions should always be followed, including the following: Read all instructions before using this machine. This
product is intended for commercial use only.
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Important Safety Information
To reduce the risk of re, electrical shock, or injury:
1. Read all instructions before using equipment.
2. Use only as described in this manual. Use only manu-
facturer’s recommended attachments.
3. Always unplug power cord from electrical outlet before
attempting any adjustments or repairs.
4. Do not unplug by pulling on cord. To unplug, grasp the
plug, not the cord.
5. Do not pull or carry by cord. Do not close a door on
cord or pull cord around sharp edges or corners.
6. Do not run appliance over cord. Keep cord away from
heated surfaces.
7. Do not use with damaged cord or plug. If cord is damaged, repair immediately.
8. Do not use outdoors or on wet surfaces and or standin g water.
9. Always unplug or disconnect the appliance from power
supply when not in use.
18. When cleaning and servicing the machine, local or na-
tional regulations may apply to the safe disposal of liquids
which may contain: chemicals, grease, oil, acid, alkalines,
or other dangerous liquids.
19. Do not leave operating unattended.
10. Do not allow to be used as a toy. Close attention is
necessary when used by or near children.
11. Do not use in areas where ammable or combustible
material may be present.
12. Do not leave the unit exposed to harsh weather ele-
ments. Temperatures below freezing may damage compo-
nents and void warranty.
13. Use only the appropriate handles to move and lift unit.
Do not use any other parts of this machine for this purpose.
14. Keep hair, loose clothing, ngers, and all parts of the
body away from all openings and moving parts.
15. Use extra care when using on stairs.
16. To reduce the risk of re or electric shock, do not use
this machine with a solid-state speed control device.
17. The voltage and frequency indicated on the name
plate must correspond to the wall receptacle supply voltage.
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1 - At a Glance
1.1 - Technical Specications1.2 - Included with the Prep Center S™
Body
Tank s
Vacuum
Pump
Heater
Rear Wheels
Locking Casters
Power Cord
Amp Draw
Net Weight
Product Dimensions
Roto-molded polyethylene
12 gallon (approx.)
Single 3-stage low amp,
100 CFM, 130” water lift
Diaphragm pump, 120 PSI,
1.3 GPM
1200 watt heating system –
210º maximum
10” foam-lled
4”
Single 25’ 12/3
20 amps @ 115V 60Hz
31” x 19” x 53.5”
8100 Vac/Sol Hose
Assembly
H294 Vacuum Hose
8400P Air Lite™
Upholstery Tool
2x H375 Hose Hangers w/
Hardware
PC86 Crevice Tool
A919 Exterior Drying Tool
One Pack
G008 Piglet™ Filters
6
PC87 Claw Tool
P590 Cuties™ OD Safety
Covers
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1 - At a Glance
1.3 - Prep Center S™ Features
1
17
2
16
3
4
5
6
7
8
1. Pegs for tool storage
2. Clear recovery tank lid
3. Solution tank opening
4. Storage tray
5. Three spray nozzles with coiled hoses
6. Three on-board chemical storage bottles
7. Blower port
8. 4” locking casters
9. Solution tank
15
14
13
12
10911
10. 10” foam-lled rear wheels
11. 25’ 12/3 power cord
12. Air line input tting
13. Recovery tank drain
14. Maintenance access latches
15. Recovery tank
16. Push handles
17. Vacuum hose port
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1 - At a Glance
1.4 - Prep Center S™ Switch Plate
123
4
5
1. Vacuum switch
2. Pump switch
3. Heater switch
4. Solution connection tting
5. Air line output tting
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2 - Machine Operation
2.1 - Powering the Prep Center S™
To power the Prep Center S™, plug the power cord into a
grounded 20 amp outlet. ♦
2.2 - Connecting Vacuum and Solution Hoses
2.4 - Filling the Solution Tank
Faucet Fill
The solution tank can be lled from a standard faucet or
hose bib. Simply lift the Faucet Fill hose out of the tank
and press it against the faucet. Turn on the faucet to allow
water to ow into the tank.
Connect the vacuum hose via Cu-Lynx™ connector to
clear elbow on top of the machine. Simply twist the male
Cu-Lynx™ into the elbow. Connect the solution line to
female solution quick connect tting on the switch plate. ♦
2.3 - Connecting Shop
INPUT
Air Line
Shop air input is located in
the bottom-right corner of the
rear of the machine.
Output is located on the
switch plate. ♦
OUTPUT
Bucket Fill
Fill up a bucket with water and pour into the solution tank
through the opening on top of the machine. Add desired
chemical according to manufacturer specications. ♦
2.5 - Dry Vacuuming
IMPORTANT: DO NOT
dry vacuum without a
Piglet™ Filter in place on
the strainer basket. This
will cause damage to the
vacuum motor.
1. Attach a vacuum hose to
the clear elbow.
2. Switch on the vacuum
and begin vacuuming.
3. Replace the Piglet™ lter regularly. ♦
9
Tank lid
Piglet™
Filter
Strainer
basket
Page 10
2 - Machine Operation
2.6 - Hot Water Extraction with the
Prep Center S™
123
To avoid a vapor lock, follow this procedure when turning
on the machine for hot water extraction.
1. Tu r n PUMP switch on. Pull the lever on the cleaning tool
to release air in the line. Hold lever until a steady ow of
water comes out of the tool.
2. Turn on HEATER switch and wait a few minutes for
water to heat up.
3. Once water is heated, turn on VACUUM and begin
cleaning. ♦
2.8 - Using Auxiliary Chemical Bottles
Put desired chemical in the bottle(s) to be used. Connect
shop air to the air line input quick connect in the bottom
right corner of the rear of the machine. Once the bottle(s)
are pressurized, chemical can be sprayed using the at-
tached nozzles. ♦
2.9 - Emptying the Recovery Tank
2.7 - Using the Blower Attachment
Attach vacuum hose via Cu-Lynx™ adapter to the blower
port on the front of the machine in the bottom-right corner.
Switch on the VACUUM. The blower attachment uses the
exhaust from the vacuum for drying. ♦
Pull up on the drain valve handle on the rear of the ma-
chine to drain the recovery tank into a bucket or drain. ♦
2.10 - Storage
When storing the Prep Center S™, make sure all liquid is
purged from the system and the tanks are drained. This is
especially important in cold climates. ♦
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3 - Troubleshooting
3.1 - Vacuum Troubleshooting
Vacuum is not turning on.
Possible CauseSolution
Vacuum may not be getting
power.
Vacuum is not producing suction.
Possible CausesSolutions
Recovery tank is full.Empty the recovery tank.
If the vacuum exhausts but
there is no suction, then
the hose from the recovery
tank to the vacuum motor
is disconnected.
Vacuum hose blockage
(if there is no suction or
exhaust).
Clogged lter in vacuum
tank.
Check the electrical connections and the switch.
Look for loose or damaged
wires.
To check the switch:
Unbolt the switch plate.
Take a picture of the layout
of the wires or tagging the
wires for future reference.
Switch the wires from the
vacuum switch with the
wires from either the pump
or heater switch. Turn on
the pump or heater switch
(whichever one you exchanged wires with). If the
vacuum turns on, then you
know the vacuum switch is
bad.
Open the machine and nd
the hose running from the
recovery tank to the vacuum motor. Check if it is disconnected. If so, reconnect
it. If it has a leak, replace
the hose (Part # PH627 if
1.5”, PH628 if 2”).
Check for blockage in the
hose, starting from the
cleaning tool to the machine.
Clean out lter regularly.
Vacuum blows water out the exhaust.
Possible CausesSolutions
Foam building up in the
recovery tank.
There is a loud grinding noise coming from the
Possible CauseSolution
Debris has been sucked
into the vacuum motor
chamber. Usually results
from dry vacuuming.
Click here for more detailed information.
Use a defoaming solution
in the recovery tank.
vacuum.
Replace the vacuum motor.
To avoid repeat problem,
DO NOT dry vacuum with
your extractor.
3.2 - Pump Troubleshooting
Pump doesn’t turn on.
Possible CausesSolutions
Bad switch at control
panel.
Loose or disconnected
wire.
Unbolt the switch plate.
We recommend taking a
picture of the layout of the
wires or tagging the wires
for future reference. Switch
the wires from the pump
switch with the wires from
either the vacuum or heater
switch. Turn on the vacuum
or heater switch (whichever
one you exchanged wires
with). If the pump turns on,
the pump switch is bad.
Disconnect the power cord
from the electrical outlet.
Open up the machine and
look for any loose or dis-
connected wires. Re-at-
tach or replace wires.
Drain valve/cap is loose
and is causing air leakage.
Hose cus are loose and
causing air leakage.
Lid on tank is loose and is
causing air leakage.
Tighten the drain valve/cap.
Tighten all hose cus reg-
ularly as may loosen over
time. Use a glue to prevent
cus from coming loose
(optional).
Make sure the lid is tight.
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3 - Troubleshooting
Pump runs but there is no spray.
Possible CausesSolutions
Blockage or kink somewhere in the line.
Air is in the pump.Prime the pump.
On a new unit, the check
valve between the pump
and heater may hang up,
causing the ow of water to
be impeded or stop entire-
ly.
Pump runs for a second then shuts down.
See chart on page 4 of the
Diaphragm Pump Troubleshooting Guide to diagnose
the location of the block-
age.
Remove QD o the ma-
chine and solution hose.
Make sure that the three-
prong clip on the inside of
the threaded end is evenly
aligned below the thread of
the QD.
Remove the check valve
temporarily and check to
see if the pump will ow
water out of the pump outlet hose when the pump is
turned on for a brief instant
in order to verify cause.
The remedy is to install a
new check valve. Observe
the proper orientation (ow
direction) of the check
valve.
Tip: the check valve may
be able to be temporarily returned to service by
un-sticking the check valve
poppet with manipulation
of the poppet ball with a
thin tool, like a straightened
paperclip. Replace the
check valve in unit assem-
bl y.
NEVER OPERATE A UNIT
WITHOUT A CHECK
VALVE IN PLACE.
Low PSI.
Possible CausesSolutions
The jet nozzle could be too
large.
Pump doesn’t stop running.
Possible CausesSolutions
Leak somewhere in the
line.
Cracks or vacuum leaks on
inlet side of pump.
Seals have been degraded
by chemical.
Debris blocking inlet lter
or pump head.
Pump trips circuit breaker when turned on.
Possible CausesSolutions
Short in power switch.Test by swapping vacuum
Replace the jet with one
that has a smaller opening.
Disconnect the solution
hose from the machine. If
this causes the pump to
stop running then the prob-
lem is outside the machine,
either in the solution hose
or tool. If it continues running on, open the machine
and check for leaks. Repair
the leak. If there are no
leaks, run Mytee’s System
Maintainer™ (Part # 3601)
through the machine to
clear blockages.
Make sure hoses are
secured tightly. If the inlet
side of the pump is cracked
or damaged, replace the
pump.
Install seal repair kit.
Clean lter and/or pump
head.
and pump switch. If problem resolves, but vacuum
begins tripping breaker, replace switch (Part #E515).
Possible CausesSolutions
QD is pressure locked.Relieve pressure from be-
hind the QD by pressing in
the button inside the QD.
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3 - Troubleshooting
Short in electrical harness.
Short in pump motor.If switch and harness
Click here for more detailed information.
Risk of electric shock. Do
this at your own risk.
Remove pump from circuit
by attaching power leads
together. If breaker still
pops when switch is toggled, then there is a short
to the ground in the circuit.
Replace wires as needed.
check is OK, the short
may be in the pump motor.
Replace pump.
3.3 - Heater Troubleshooting
Heater is not heating water.
Possible CausesSolutions
Loose electrical connection.
Automatic sensor has
failed, causing manual
sensor to trip.
Heater element has failed.Check for continuity
Bad power switch.If the element, sensors,
Check all electrical connections, including power
cord and harness.
Reset the manual sensor
button by pressing the
small white and yellow
button in the center of the
sensor. If this works, but
heater continues to trip the
manual sensor, replace
the automatic sensor (Part
#E573) on the heater.
through the element by
reading the amperage. If
amps are low, only part of
the element may be heat-
ing up – in this case, the
element is damaged and
needs to be replaced.
and wiring all check out
okay, there may be a bad
switch on the switch-plate.
Running out of hot water too fast.
Possible CausesSolutions
Too much water owing
through the heater.
Jets being used are too
large.
Water in tank is very cold.If possible, ll your solu-
Heater has hard water
buildup inside, leading to
lost eciency.
Unit has vapor locked and there is no water pumping
out of the unit.
Possible CauseSolution
Turning on the heater
before turning on the pump
and priming the unit.
Click here for more detailed information.
Remember, when using
your machine, it is recommended you do one
wet pass followed by two
dry passes. This way you
are not spraying as much
and the hot water will last
longer.
If your machine has a
1,000W or 1,200W heating
system, make sure your
cleaning tool has 0.02 jets.
tion tank with warm water
in order to shorten the
amount of time it takes for
the water to heat up. The
pumps are usually rated for
140°F water.
Run Mytee System Maintainer™ (Part # 3601)
through the machine regularly in order to clear hard
water or chemical residue
that can block water ow
and reduce heating ability. See product label for
instructions.
Turn o the heater and
allow the unit to cool completely. When machine has