OPERATION MANUAL
MCX-1
Multiple Coolant Exchanger
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RTI Technologies, Inc.
4075 East Market St.
York, PA 17402 USA
800-468-2321
www.rtitech.com
Manual Number 035-80799-00 (Rev D)
TABLE OF CONTENTS
Component Description ....................... 2
Safety Precautions ........................... 3
Set-up ..................................... 4
Connection to Power ......................... 5
Lowering Coolant Level ....................... 6
Connecting to the Coolant System ............... 7
Special Hookups............................. 8
Coolant Replacement ......................... 9
Completing the Job.......................... 10
Changing Coolant Type ...................... 12
Emptying the Waste Tank .................... 14
Replacement Parts .......................... 15
Waste Pump Impeller Replacement ............. 16
Flow & Wiring Diagram ....................... 17
Page 1
COMPONENT DESCRIPTION
Unpack all components and verify quantities per this illustration.
Contact RTI if any items are missing or damaged.
Small Hose Clamps
Large Hose Clamps
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1-1/4
1-3/8
1-3/8
1-1/4
Small Adapter Hose
Small Step Adapters
1-1/2
1-3/4
1-3/4
1-1/2
Large Adapter Hose
Large Step Adapters
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VALVE OPEN
VALVE CLOSED
Wand
Impeller & Gasket
New Coolant
Tank
(Qty=2)
Waste Tank
Page 2
SAFETY PRECAUTIONS
WARNING: FAILURE TO FOLLOW THESE PRECAUTIONS CAN RESULT IN
SERIOUS INJURY OR DEATH.
C Read and understand the Operation Manual completely before operating this unit.
C Always wear proper eye and skin protection when operating and maintaining this
equipment.
C Take precautions to keep clothing, hair, hands, hoses, etc. away from all moving
parts on the vehicle.
C Automotive cooling systems can be under pressure and extremely hot. Allow the
cooling system to cool down and use extreme caution when removing caps and
hoses.
C Coolants are poisonous to people and animals and are also corrosive. Clean up any
spills immediately.
CAUTION: FAILURE TO FOLLOW THE PRECAUTIONS AS OUTLINED IN
THE OPERATION MANUAL CAN RESULT IN DAMAGE TO THE
ENGINE, VEHICLE OR EQUIPMENT WHICH WILL NOT BE
SUPPORTED OR COVERED UNDER WARRANTY.
C Do not allow waste coolant tank to overflow. Immediately clean up any coolant
spills. Damage to the vehicle and equipment can result from the corrosiveness of
coolant.
C Continuous monitoring of the coolant replacement process is required.
Page 3
SET UP
Green Hose
Black Hose
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New Coolant
Green Hose
Tank Cap & Plug
Quick
Coupler
New Coolant Tank
(Small)
The MCX-1 has two tanks (plus an extra New Coolant Tank) which are installed and
connected from the rear. Quick connect couplers are mounted on the hoses which
connect these tanks to the MCX-1. A green hose connects to the small New Coolant
Tank and a black hose connects to the large Waste Tank.
1. Slide the New Coolant Tank to the rear and sit it on the floor.
2. Remove the tank cap and fill the tank with new coolant and water in the
proportions specified by the coolant supplier. The tank can be disconnected
and moved to a bulk storage and fill area if desired. A plug is provided on the
cap to prevent spillage during transport.
3. Replace the tank cap and position the tank in the MCX-1. Make sure the green
hose is securely connected. Slide the tank to the front so the liquid level can be
seen through the front panel slot.
4. Make sure the plugs are removed from the caps on the waste tank and
the new coolant tank. This is required for venting the tanks during
operation.
5. Fasten the clips on the tank strap to secure the tanks in the MCX-1.
Page 4
CONNECTION TO POWER
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The MCX-1 control panel is illustrated above. Note that the bottom of all three selector
switches has been pressed which turns all functions off. Make sure all switches are
off before connecting the battery cable clips to the battery of the vehicle.
WARNING: Handle battery connection cable with extreme caution. Batteries
generate explosive gases during normal operation. Working in
the vicinity of a lead-acid or other automotive battery is
dangerous. Wear eye protection. Never smoke or allow a spark or
flame in the vicinity of the battery. Do not connect the black
power clip to the negative post of the battery to avoid a spark.
1. Verify that all switches are in the off position.
2. Connect the red power clip to the “+” (positive) post of the vehicle battery. The
battery must be 12 volt.
3. Connect black power clip to an engine ground (not the negative post of the
battery).
Page 5
LOWERING COOLANT LEVEL
Green Hose
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Radiator
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Wand
Overflow
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Engine
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Heater
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WARNING: Coolant in the vehicle cooling system may be extremely hot and
under great pressure. Wear safety glasses and use protective
clothing and gloves. Use extreme caution when removing radiator
cap and hoses.
Black Hose
1. Slowly and carefully remove the cap from the radiator.
2. Remove cap from overflow container.
3. Attach the wand to the black hose. Close the valve.
4. Turn control valve to LOWER RADIATOR & OVERFLOW.
5. Press the top of LOWER RADIATOR & OVERFLOW selector switch to turn on
pump.
6. Use the Wand to empty the overflow container and lower the level of coolant
in the radiator to a level just below the upper hose connecting the radiator to the
engine. Open valve on wand as required.
VERY IMPORTANT
Open valve on wand only while end is in fluid.
Do not suck air as the pump may loose its prime.
7. Press bottom of LOWER RADIATOR & OVERFLOW selector switch to turn off
pump.
8. Replace caps on the radiator and overflow container.
Page 6
CONNECTING TO THE COOLANT SYSTEM
The MCX-1 can be connected to the cooling system in either of the configurations
shown below. The choice is dependent on the ease of accessability to the hose
connections.
1. Disconnect the radiator hose from either the engine or the radiator.
2. Select an Adapter Hose with the same inner diameter as the radiator hose and
connect at the point the radiator hose was disconnected using a clamp.
3. Install Step Adapters in the Adapter Hose and the radiator hose using clamps.
Make sure the outside diameter of the Step Adapters is the same as the inner
diameter of the radiator hose.
4. Connect the Green and Black hoses from the MCX-1 to the two Step Adapters
as shown in the following illustration. See next page for special hookups.
5. Open the valves on the two Step Adapters.
Green Hose
Black Hose
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Connecting at Engine
Adapter
Hose
Radiator
Hose
Radiator
Step
Adapters
Overflow
Water
Pump
Engine
Block
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Core
Green Hose
Black Hose
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Connecting at Radiator
Radiator
Hose
Adapter
Hose
Radiator
Step
Adapters
Overflow
Water
Pump
Engine
Block
Heater
Core
Page 7
SPECIAL HOOKUPS
Special Hookup 1) It may be necessary to reverse the hoses during the coolant
replacement procedure on the next page for systems with a
reverse-connected thermostat. See note after Step 6 on next
page for the symptoms of this situation.
Special Hookup 2) Some cooling systems do not have a cap on the radiator.
Instead, there is a single cap on the overflow tank as shown in
the illustration below.
The hoses to and from the overflow tank must be pinched using
hose pinching pliers during the coolant replacement procedure
on the next page.
Failure to pinch these hoses will cause fluid to be forced out of
the vented cap on the overflow tank during the coolant
replacement procedure.
Radiator
Hose
PINCH
HOSE
Step
Adapters
Overflow
Adapter
Hose
Water
Pump
PINCH
HOSE
Engine
Block
Heater
Core
Page 8
COOLANT REPLACEMENT
Once the MCX-1 is connected as described on the preceding pages it is ready to
replace the old coolant with new coolant.
Green Hose
Step
Overflow
Adapter
Water
Pump
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Heater
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Scales for the tank levels are
graduated in quarts and liters
Black Hose
Radiator
Hose
Radiator
Adapters
1 Gallon = 4 Quarts.
1. Determine the capacity and type of coolant for the vehicle cooling system.
Refer to the vehicle Owner’s Manual.
2. Make sure the New Coolant Tank (left slot on front) is filled with the correct
coolant and at a level higher than the amount required to fill the coolant system
to full capacity.
3. Check the Waste Tank (right slot on front) to make sure the level is low enough
to accept the full capacity of coolant in the vehicle cooling system.
4. Turn control valve to EXCHANGE COOLANT.
5. Press the top of EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch to turn on the pump.
6. Watch the level of coolant as it lowers in the New Coolant Tank. Press the
bottom of the EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch when it reaches the correct level. This will stop the transfer of
coolant.
If the pump is running and the new coolant level does not go down:
Try reversing the connections of the green and black hoses.
Page 9
COMPLETING THE JOB
All used coolant in the vehicle cooling system has now been replaced with new coolant.
The following steps will complete the job.
Green Hose
Black Hose
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Radiator
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Wand
Water
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Engine
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Heater
Core
Radiator
Overflow
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&
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A
N
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1. Close the valves on the Step Adapters.
2. Disconnect the black and green hoses from the Step Adapters.
3. Install Wand on black hose. Close the valve.
4. Remove the cap from the radiator.
5. Turn control valve to LOWER RADIATOR & OVERFLOW.
6. Press top of LOWER RADIATOR & OVERFLOW selector switch to turn on
pump.
7. Use the Wand to lower the level of coolant in the radiator to a level just below
the upper hose where the Step Adapter is attached. Open valve on Wand as
required.
Continued on next page . . .
Page 10
COMPLETING THE JOB
Green Hose
L
O
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&
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O
O
O
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O
L
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&
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&
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R
O
W
Black Hose
Radiator
Hose
Wand
Engine
Block
Heater
Core
Water
Pump
Radiator
Overflow
L
O
W
E
R
&
R
O
A
V
D
E
I
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A
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&
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8. Remove the Step Adapters from the radiator hose and the Adapter Hose.
9. Remove the Adapter Hose and reattach the radiator hose.
10. Remove the overflow container cap.
11. Install the Wand on the green hose. Close the valve.
12. Turn control valve to FILL RADIATOR & OVERFLOW.
13. Press the top of EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch to turn on the pump.
14. Open the valve on the Wand to fill the radiator and overflow container to the
recommended levels.
15. Replace the radiator cap and overflow container cap.
16. Press the bottom of the EXCHANGE COOLANT OR FILL RADIATOR &
OVERFLOW selector switch and disconnect power cord.
Page 11
CHANGING COOLANT TYPE
The MCX-1 has a means for easily using different types of coolants. A special feature
is the clearing process which purges coolant from the hoses and pumps prior to
changing the new coolant tank. The MCX-1 must be connected to a battery during this
procedure.
Green Hose
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&
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&
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I
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E
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&
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A
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L
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Black Hose
Green Hose
Adapter
Step
New Coolant Tank
(Small)
Wand
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&
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1. Slide the New Coolant Tank to the rear and sit it on the floor.
2. Disconnect the green hose from the tank and install a Step Adapter on the end.
Close the valve on the Step Adapter.
3. Close the valve and install the Wand on the long green hose.
4. Turn control valve to FILL RADIATOR & OVERFLOW.
5. Press the top of the EXCHANGE COOLANT OR FILL RADIATOR &
OVERFLOW selector switch to start the pump.
6. Insert the end of the Wand in the fill port on the New Coolant Tank. Open the
valve on the Wand and then open the valve on the Step Adapter. All coolant in
the hoses and pump will be emptied into the New Coolant Tank.
7. Close the valve on the Wand and Step Adapter. Press the bottom of the
EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW selector switch
to turn off the pump.
8. Remove the Step Adapter from the green hose and connect a New Coolant
Tank with a different type of coolant.
Continued on next page . . .
Page 12
CHANGING COOLANT TYPE
Green Hose
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&
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&
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&
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Black Hose
Green Hose
Wand
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&
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W
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F
T
New Coolant Tank
(Small)
9. Press the top of the EXCHANGE COOLANT OR FILL RADIATOR &
OVERFLOW selector switch to start the pump.
10. Insert the Wand in the fill port of the New Coolant Tank. Open the valve on the
Wand.
11. The pump will prime and hoses will fill with the new coolant.
12. Close the valve on the Wand when new coolant starts flowing.
13. Press the bottom of the EXCHANGE COOLANT OR FILL RADIATOR &
OVERFLOW selector switch to turn off the pump.
14. Place the cap on the New Coolant Tank and slide it into the MCX-1.
Page 13
EMPTYING THE WASTE TANK
The Waste Tank can be emptied two different ways.
A. The Waste Tank can be removed from the MCX-1 and transported to the area
where it is to be emptied. A quick connect coupler is installed on the black hose
to make this disconnection quick and clean.
B. The MCX-1 can be used to pump the waste coolant directly from the Waste
Tank into another waste collection tank. A 12 volt battery will be required to
power the MCX-1.
L
O
W
Green Hose
Black Hose
L
O
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&
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O
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E
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T
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&
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O
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R
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P
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Y
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K
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O
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E
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&
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&
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E
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O
O
L
F
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&
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A
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D
V
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O
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&
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N
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V
E
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F
A
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T
T
O
R
L
O
W
Bulk Waste Container
1. Install the Wand on the black hose.
2. Turn control valve to EMPTY WASTE TANK.
3. Press the top of the EMPTY WASTE TANK selector switch to start the pump.
4. Hold the Wand over the Bulk Waste Container and open the valve.
5. Waste coolant will be pumped directly from the MCX-1 Waste Tank into the
Bulk Waste Container.
Do not leave the MCX-1 unattended while emptying the waste tank.
The pump will be destroyed if allowed to run for more than one
minute after waste tank is empty.
6. Close the valve on the Wand immediately after waste tank is emptied.
7. Press the bottom of the EMPTY WASTE TANK selector switch to stop the
pump.
Page 14
REPLACEMENT PARTS
Call 800-468-2321 (Extension 259)
For Technical Support or Parts Ordering
Visit our web-site at www.rtitech.com
1-1/4 1-3/8
1-1/2
1-3/8
1-1/4
1-3/4
1-1/2
1-3/4
Small Adapter Hose
(Includes 2 Clamps)
Large Adapter Hose
(Includes 2 Clamps)
Small Step Adapter
Large Step Adapter
Wand
370-80049-00
370-80050-00
370-80046-00
370-80047-00
370-80006-00
Fuse 15 AMP
Impeller & Gasket
(For Waste Pump M2)
New Coolant Tank
Waste Tank
025-80326-00
028-80210-00
370-80007-00
370-80008-00
2-1/4 2-1/2
Extra Large Adapter Hose
(Includes 2 Clamps)
Optional Accessories
2-1/2
370-80051-00
2-1/4
2
Extra Large Step Adapter 370-80048-00
Page 15
WASTE PUMP IMPELLER REPLACEMENT
The waste pump impeller may require periodic replacement. The concentration of
impurities in recovered old coolant affects the life of the pump impeller. Changing the
impeller is quick and easy as follows:
1. Remove Hose Holder on rear of unit to access the end of the Waste Pump.
2. Remove 4 screws.
3. Remove cover plate, gasket and worn impeller.
4. Coat new impeller with Vaseline
®
petroleum jelly.
5. Align flats and press impeller onto shaft.
6. Attach new gasket and cover plate.
7. Replace Hose Holder.
Pump
Housing
Impeller
Gasket
Cover Plate
Screw
Impeller & Gasket - Part Number 028-80210-00
Page 16
FLOW & WIRING DIAGRAM
Page 17
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