MAHLE RTI MCX-2HD User Manual
OPERATION MANUAL
MCX-2HD
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 035-81024-00
TABLE OF CONTENTS
Component Description ....................... 2
Safety Precautions ........................... 3
Set-up ..................................... 4
Connection to Power ......................... 5
Relieving Radiator Pressure.................... 6
Lowering Coolant Level ....................... 7
Connecting to the Coolant System ............... 8
Special Hookups............................. 9
Coolant Replacement ........................ 10
Test Coolant System for Leaks ................ 11
Completing the Job.......................... 12
Changing Coolant Type ...................... 14
Emptying the Waste Tank .................... 16
Replacement Parts .......................... 17
Waste Pump Impeller Replacement ............. 18
Flow & Wiring Diagram ....................... 19
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
Extra Large Hose Clamps
1-1/4
Small Adapter Hose
1-1/2
Large Adapter Hose
2-1/4
Extra Large Adapter Hose
1-3/8
1-3/4
2-1/2
1-3/8
1-1/4
Small Step Adapters
1-3/4
1-1/2
Large Step Adapters
2-1/2
2-1/4
2
Extra Large Step Adapters
Green Hose
Impeller & Gasket
Wand
Black Hose
Adapter Hose 1/2 in.
Adapter Hose 5/8 in.
Adapter Hose 3/4 in.
New Coolant Tank Waste Tank
(Qty=2)
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
Install Filter and Bowl on rear of MCX-2HD as shown.
These items are shipped in the carton with the adapters
and adapter hoses.
The MCX-2HD 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-2HD. A green hose connects to the small New Coolant
Tank and a black hose connects to the large Waste Tank. The small diameter black
drain hose must be inserted into the hole in the cap of the 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
coolant storage area for filling 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-2HD. 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.
Green Hose
Black Hose
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New Coolant
Green Hose
Tank Cap & Plug
Quick
Coupler
New Coolant Tank
(Small)
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. The small diameter black drain hose must be inserted into the
hole in the cap of the Waste Tank.
5. Fasten the clips on the tank strap to secure the tanks in the MCX-2HD.
Page 4
CONNECTION TO POWER
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The MCX-2HD 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
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