Axi MTC-500 Instructions for use

MTC-500 INSTRUCTION, OPERATING,
AND MAINTENANCE MANUAL
Tank Cleaning and Fuel Restoration System
1.239.690.9589
AXI.InternationalAXInternational AXIFuelAXIFuel
1.877.425.4239 Toll Free
www.AXI-International.comREV0303500011217

MTC-500
Mobile Fuel Polishing System
The MTC-500 Mobile Fuel Polishing System is designed to efficiently and safely clean and restore fuel to pristine condition. The
MTC-500 incorporates a multi-stage filtration process that reconditions, stabilizes and decontaminates diesel, biofuels, light oils
and hydraulic fluids. All MTC systems are specifically designed for tanks with contaminated fuel that require the removal of
water, sediment, and sludge accumulation.
MTC Systems are built with industrial quality components mounted on a heavy-duty aluminum cart. A clear suction hose shows
fuel flow and clarity. The large drip tray is designed to prevent spillage. By using the pre-filter bypass loop (discharge Port 1),
the system can efficiently and safely remove free water without the use of consumables.
MTC-500 SPECIFICATIONS
MTC SERIES FEATURE:
Multi-stage Water Removal, Particulate Filtration,
and Fuel Conditioning
Compact Industrial Design
Locking Cam and Groove Connections
Built In Spill Containment Tray
Pre-filter By-pass Loop Capability
1.239.690.9589
AXI.International AXInternational AXIFuel AXIFuel
1.877.425.4239 Toll Free
www.AXI-International.com
Flow Rate (@ 60Hz) 8 GPM/480 GPH (30.3 LPM/1814 LPH)
Mechanical Water
Separator
Specific Gravity Separation and
Particulate Removal
Final Filter 1, 3, 10 or 25μ Particulate
or 3, 10μ Water Block
Fuel Conditioner LG-X 1500 Inline Conditioner
Pump 1 HP, Self-priming Rotary Vane Pump
with Integrated Adjustable Bypass Valve
Power 115V/60Hz/15A or
230V/50Hz/15A
Ports 1” Cam & Groove In
3/4” Cam & Groove Out (Before Fine Filter)
3/4” Cam & Groove Out (After Fine Filter)
Clear Suction Hose 1”, 25 ft (7.6 m)
Discharge Hose 3/4”, 25 ft (7.6 m)
Dimensions 48” x 22.5” x 25” (H x W x D)
(122 x 57 x 63 cm)
Weight ≈ 140 lbs (63.5 kg)
Not for use with fluids that have a flash point below 100°F (37.8°C).
REV0203500011217

Pre-Filter Vessel with Bag Filter
AFC 705/710 Fuel Catalyst
Spill Containment Berm
Digital Flow Meter
MTC-500 OPTIONS:
REPLACEMENT FILTER OPTIONS:
MTC SYSTEM INTEGRATION:
Fine Filter Part No. Fine Filter
3µ Water Block Filter
1µ Fine Filter FF-1
3µ Fine Filter FFZ-3
10µ Fine Filter FF-10
10µ Water Block Filter
WB-3
WB-10
Part No.
MTC-500
Mobile Fuel Polishing System
1.239.690.9589
AXI.International AXInternational AXIFuel AXIFuel
1.877.425.4239 Toll Free
www.AXI-International.com
Mechanical Water Separator
Ball Valve
Quick Connect/Disconnect Inlet
Ball Valve Drain
Discharge Port 2 (Ball Valve)
Fine Filter
Spill Tray
Discharge Port 1 (Ball Valve)
Pressure Gauge
Pump
Vacuum Gauge
AXI Inline LG-X 1500 Conditioner
Wye-Strainer
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
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Table of Contents
General Overview ...............................................................................................................................................................
System Components .........................................................................................................................................................
Pump/Motor .................................................................................................................................................................
Pre-Filter/Water Separator ..........................................................................................................................................
FinalFilter........................................................................................................................................................................
Fuel Conditioner ............................................................................................................................................................
Plumbing ........................................................................................................................................................................
Commissioning/Initial Startup ........................................................................................................................................
Preparations ...................................................................................................................................................................
General Tank Cleaning Procedure ...............................................................................................................................
System Operation ..............................................................................................................................................................
Operating Procedure .....................................................................................................................................................
Phase 1 ...........................................................................................................................................................................
Phase 2 ...........................................................................................................................................................................
Phase 3 ...........................................................................................................................................................................
AFC Fuel Additive ..........................................................................................................................................................
Primary Inspection .............................................................................................................................................................
Checklist .........................................................................................................................................................................
Priming the System ............................................................................................................................................................
Priming Procedure .........................................................................................................................................................
Maintenance ........................................................................................................................................................................
Preventative Maintenance ............................................................................................................................................
Servicing Pre-Filter/Water Separator ..........................................................................................................................
Servicing Final Filter(s) ..................................................................................................................................................
Saftey Notes ...................................................................................................................................................................
Troubleshooting .............................................................................................................................................................
Filter Chart ......................................................................................................................................................................
Warranty ...............................................................................................................................................................................
Parts/Service ......................................................................................................................................................................
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OVERVIEWSYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
General Overview
MTC-500 Specications
Note: The system is designed to meet environmental standards for safe operation. (Not for use with uids that have a
ash point below 100°F (37.8°C), e.g. gasoline, alcohol, etc.)
Flow Rate ................................................................................
Outline Dimensions (Enclosure) ............................................
System Weight .......................................................................
Operating Temperature ..........................................................
Electrical .................................................................................
Pump .......................................................................................
Motor .......................................................................................
Fuel Conditioner .....................................................................
Inlet ..........................................................................................
Outlet(s) ..................................................................................
8 GPM/480 GPH (30.3 LPM/1814 LPH)
48” x 22.5” x 25” (122 x 57 x 63 cm) (H x W x D)
≈ 140 lbs (63.5 kg)
41 - 104°F (5 - 40°C)
115V/60Hz/15A or 230V/50Hz/15A
Self Priming Rotary Vane Pump
1 HP single phase, thermally protected
LG-X 1500
1” NPT male port
3/4” NPT male port
OVERVIEW

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEW
System Components
Pump/Motor
• 1 HP Self-priming Rotary Vane Pump with Integrated Adjustable Bypass Valve
• Motor – UL listed, TEFC (Totally Enclosed Fan Cooled) with thermal overload protection
• Service Factor (1.00)
Pre-Filter/Water Separator
• Drain valve on the bottom
Final Filter
• Down to 1µ nominal, 3µ absolute, and 3µ water blocking spin-on lter
• Pressure gauge
Fuel Conditioner
• Inline Magnetic Fuel Conditioner eliminates and prevents the formation of sediments that naturally occur in diesel fuel
and bio-blends
Brass Plumbing
SYSTEM COMPONENTS

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERMAINTENANCE
REV0303500011217
COMMISSIONING OVERVIEW
Commissioning/Initial Start-Up
Preparations
Before operating the MTC, we recommend determining the amount of contaminants, free water, and sludge in the tank.
AXI International provides a variety of tank sampling equipment, including Sampling Pumps, tubing and bottles, as well as
Tank Samplers (“Bacon Bomb”) – please see our FS Fluid Sampling line of products. Please make sure the samples are
taken from the bottom of the tank (in the deepest spot). Use a stick with “Kolor Kut” paste on the end, reach through the top
of the tank, and place the end of the stick all the way at the bottom of the tank. Kolor Kut paste will show the water level in
the tank, and indicate how much water, and sludge, will have to be removed. Call AXI International for further information
on other fuel sampling equipment.
General Tank Cleaning Procedure
The MTC has two different operating modes (Bypass Mode and Fine Filtration Mode), providing the operator exibility and
time efciency.
In Bypass Mode, bulk water and sludge are removed from the tank into a separate container for disposal. The fuel bypasses
the ne lters, removing free water, sludge, and particulate, as small as 1 micron, from the tank. During this step, the system
is not in a re-circulating mode. The fuel enters through the Inlet Port and exits through Discharge Port 1 into a separate
waste container. Water and sludge are directly removed from the tank and collected in an appropriate container for disposal.
Next step, while still in bypass mode, put the hose that was in a separate container back into the main tank to create a kidney
loop. This process will further save and extend the life of the spin-on lters, and remove the worst of contaminants, before
polishing with ne lters to meet the required cleanliness.
In Fine Filtration Mode, the MTC system is continuously restoring, reconditioning, and returning the fuel back to the tank.
Fine Filtration mode will continuously remove free water and particles as small as 1 micron, utilizing high efciency spin-on
lters.
We always recommend keeping a “before” and “after” bottom tank sample for “show & tell” purposes to demonstrate the
improvement of fuel color, clarity, and opacity.

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEW
OPERATION
System Operation
Operating Procedure
Hoses: The intake/suction hose is a clear, see-through reinforced vacuum hose. The return hose is black or blue/black, non-
marking, high quality, discharge fuel hose. Both hoses are equipped with quick disconnects or Cam & Groove couplings.
1. Attach quick disconnect end of clear suction hose to the quick disconnect Inlet Port of the MTC.
2. We highly recommend attaching a straight wand or pipe (cut at an angle at the end that goes into the tank and is at
minimum the same inner diameter as the suction hose) to the suction hose to reach the lowest part of the tank bottom.
3. Attach quick disconnect end of blue/black discharge hose to quick disconnect Discharge Port 1 of MTC.
4. Place the end of the discharge hose in an appropriate-size container (Phase One only). Try to not agitate the fuel in the
tank and stir up and disperse water and sediment throughout the fuel –this will make it more difcult to remove later on.
5. For Phases Two and Three, place the end of the discharge hose back in the tank as far away as possible from the
suction hose. Ensure that the hose is secured and will not vibrate out of the container when the system is operating.
6. Verify that both drain valves are closed and the system is set up in a stable and safe position.
Note: Never restrict the ow on the suction side of an MTC; e.g. by using a smaller ID hose or pipe or attaching the suction
hose to a tting on the tank that has a smaller ID than the hose. This will lead to excessive pump load, noise and ultimately
damage the pump.
Phase 1:
AXI recommends 3 phases to successfully polish a fuel tank. This will ensure all water is removed from the fuel, particulate
is removed, and the fuel is in an optimal condition. The goal of Phase One is to remove any free water and sludge on the
bottom of the tank without mixing the water into an emulsied state within the fuel.Start the pump motor and be ready to
immediately stop it. The vane pump will start pumping as long as the system is primed and the suction lift is not excessive.
The ow of fuel can be observed in the see-through suction hose. Watch for a steady ow of fuel into the container.
1. Once the uid begins to ll the discharge container, immediately switch off the motor and inspect the discharged uid.
Resume pumping and continue the above procedure until water and sludge have been removed from tank bottom and
primarily fuel is discharged from the return hose.
2. To remove as much of the free water and sludge as possible, the suction hose with a straight wand or pipe attached
should be placed at the deepest part of the tank. If possible, move the suction hose/pipe to different areas of the tank
to more efciently vacuum the sludge off the bottom. After removing the bulk water and sludge from the tank, switch off
the pump. Then, drain all water and debris from the hose and the water separator into an appropriate bucket placed
under the drain valve.
Phase 2:
After removing the bulk of the sludge and water from the tank into a separate container for disposal and draining the
separator, the return hose is now inserted into the tank. The goal of Phase Two is to remove any additional free water within
the tank and also remove any large contaminants and sludge. This phase will clean the fuel and should be a precursor to
using the more expensive spin-on lters. It should be noted that meeting required cleanliness codes is typically not possible
with pre-ltering alone. Phase Two is used to extend the life of the spin-on lters, and remove the worst of the contaminants,
before polishing with ne lters to meet the required cleanliness.

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OPERATION OVERVIEW
1. Insert blue/black discharge hose into tank as far away from the suction hose as possible. In some cases, it is
recommended to remove the sending unit cover to gain sufcient access to the tank. In many cases, both hoses will
have to be inserted through the same tank ll opening.
2. After verifying that both hoses are properly placed in the fuel tank and that the valves on the MTC system are in the
correct position, switch on the pump and watch the clear suction hose for fuel ow.
Depending on the amount of contaminant in the tank, we recommend you stop the pump shortly after priming and check
for free water and sludge by draining the water separator. It may be necessary to depress the air purge valve on top of the
separator after opening the drain valve.
Repeating this process and observing the fuel ow will indicate how long the pump should run before it is necessary to drain
the separator.
3. The MTC should be kept running in the Phase Two recirculating mode until clean fuel samples can be drained from the
separator. Then, switch off the pump for nal polishing.
4. Now is the time to add AXI International AFC-705 Fuel Catalyst in a dose of 1 : 2500 or 1 gal of AFC-7010 for 2500
gallons of fuel. Higher doses of AFC-705 may be necessary depending on condition of fuel.
Phase 3:
Phase Three is the most important phase in meeting specic cleanliness codes. Unlike the pre-lter, the spin-on lters
typically use absolute rated media. Absolute lters have a very high efciency and will ensure that fuel leaving the system is
clean to specication and has a low water content. Like previously mentioned, pre-ltering should be performed to remove
any large particulate, water, and sludge. Pre-ltering will extend the life of the spin-on lters.
1. Connect the return hose to Discharge Port 2.
2. Start the pump and the system will run in the re-circulating mode restoring the fuel to its optimal pristine and sparkling
condition.
3. Monitor the pressure gauge on the lter head. When the pressure reaches 20 - 25 PSI, or reaches the red area it is
time to change the lter.
Note: FF-3, FF-10 and FF-25 lers are only for particulate removal and will allow water to pass through – for complete water
elimination we highly recommend to nish a tank cleaning job with a WB-3 or WB-10 lter.
!WARNING! The whole system (enclosure, doors, plumbing, motor, electric sub panel) must be properly
grounded for operator safety.
Note: The built in bypass-valve on the systems pump can be adjusted for your requirements. If the adjustment screw is
all the way out, the valve is set to the lowest possible pressure. Turn screw on bypass valve clockwise to increase bypass
pressure if necessary (see also pump instructions).

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEWOPERATION
AFC Fuel Additive
The use of AXI International AFC-705/710 Fuel Additive is an essential part of any tank cleaning and fuel polishing procedure,
as AFC can more rapidly and efciently decontaminate and clean the entire fuel system. The additive is best introduced into
the process after Fine Filtration Mode. Before dosing the tank with AFC-705/710, remove as much of the sludge and free
water as possible. Adding AFC-705/710 to the tank will speed up the cleaning process by breaking down and dissolving the
sludge covering the tank walls and bottom.
AFC-705/710 will decontaminate areas and sections of the tank that are out of reach of the suction hose. It is recommended
to use a higher concentration of one to twenty ve hundred (1:2500) instead of one to ve thousand (1:5000) for the rst
treatment. This has proven to be very helpful in accelerating the rate of dissolving sludge. Higher doses may be necessary,
depending on contamination level of the fuel. AFC-705/710 is a full spectrum fuel additive, containing a combustion
catalyst, surfactant (705), detergent, dispersant, corrosion inhibitor, lubricity enhancers, and a fuel stabilizer that eliminates
the need for expensive, toxic biocides.
After Fuel Polishing Process
1. Stabilize the Fuel
AFC-705/710 will stabilize the fuel in tanks used for long-term fuel storage. When a recirculation or STS Automatic Filtration
System is not in place, AFC-705/710 will maintain fuel quality and prevent formation of sludge for up to twelve months.
Added after the fuel polishing process, it is not necessary to add more AFC-705/710 until additional fuel is added into the
tank, or an environmental condition for the fuel has been altered (introduction of water or other contamination)
2. Prevent Water from Accumulatin
The use of AXI Water Eliminators, or tank breathers, will prevent water from accumulating in the tank. The water eliminators
will absorb and remove any water from condensation or other sources. Preventing water accumulation eliminates microbial
growth and the need for toxic biocides.
3. Monitor Fuel Quality
Liquid-Cult Fuel Test Kits are ideal for monitoring your fuel supply for microbial contamination. The tests provide indication
of bacterial and fungal activity.
4. Intelligent Fuel Management Solutions
AXI International Intelligent Fuel Management Solutions signicantly lower operating costs, save fuel, eliminate periodic
tank cleaning and the build up of solids, sludge, and acids. AXI International Technology enhances personnel safety and
addresses environmental concerns by preventing the need for costly toxic biocides. Larger capacity Mobile and Stationary
Tank Cleaning Systems are available.
! IMPORTANT ! It is recommended that only qualied, experienced personnel, familiar with this equipment,
who have read and understood all the instructions in this manual should operate and maintain the system.
! WARNING ! Do not use with gasoline, solvents, corrosive liquids, food liquids or other liquids having a
ash point less than 100°F. Use with gasoline or use with any ammable liquids at a temperature exceeding
their ash point, presents an immediate explosion and re hazard

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SYSTEM COMPONENTSINSTALLATION OPERATIONCONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
PRIMARY INSPECTION
Primary Inspection
Upon arrival, the system and accessories must be visually inspected before installation. Improper handling during shipping
may cause physical or electrical problems. Immediately report or note any damages (also concealed ones) to the shipper.
Checklist
❑If the packing crate shows signs of damage inspect the system for damage.
❑Check the entire system for damage that could indicate mechanical or electrical problems.
❑Check pump/motor hardware and all plumbing connections for tightness.
❑Check all electrical and connections for tightness.
OVERVIEW

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONCONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEWPRIMING
Priming the System
Note: The system is equipped with a positive displacement vane pump. It should never be run dry and started without the
hoses attached and/or valves in the closed position. Failure to do so may damage the bypass valve and/or pump.
Priming Procedure
Before turning on the pump make sure the entire suction side of the system (suction hose, separator, plumbing, pump,
strainer …) is primed and lled with oil/diesel fuel. Running the pump dry could cause pump damage and pump to not
operate properly.
Note: The separator/coalescer has to be full at all time to perform properly.
! IMPORTANT ! Never exceed 15”HG on vacuum gauge located before of pump.

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
MAINTENANCE
Maintenance
OVERVIEW
! IMPORTANT ! It is recommended that only qualied, experienced personnel, familiar with this equipment,
who have read and understood all the instructions in this manual should install, operate and maintain the
system.
! IMPORTANT ! Always disconnect the system from the electric power supply before working or servicing
it. Do not proceed with any maintenance unless the pressure or vacuum has been released, the system has
been allowed to reach ambient temperature and all uids have been drained.
Draining and Storing the System
1. Before releasing the quick disconnect couplings, allow all fuel to ow out of the hoses by draining the system or take the
suction hose out of the tank while the pump is still running and wait till system is purged and empty.
2. Place an appropriate container under each drain valve. Open both the valve on the separator and the valve under the
pump. Use the air purge valve on top of the separator to make sure all of the uid can be drained from the system.
Opening the valves and the air purge valve will allow fuel to ow down and out of both hoses into the tank.
Pump Strainer/Wye-Strainer
Check the Wye-Strainer (MTC-500) frequently for debris and clean as necessary.
Fuel/Oil Separator/Coalescer
The separator is a closed dynamic separator/coalescer that does not require any consumables. When draining water and
sludge from the separator:
1. Place an appropriate container under the drain valve
2. Remove the top plug to allow air in and fuel to ow out
3. Open the drain valve and close when observing clean fuel
The Separator needs to be serviced and ushed from time to time.
Pump
Check pump for leaks, worn vanes and if bypass valve operates correctly. We highly recommend carrying a spare pump.
The MTC pump can be easily changed in a matter of minutes by opening the unions and/or short hose connections. Spare
part kits are also available for all MTC pumps. Keep the pump lubricated and pour some oil into pump head for storage.
LG-X Fuel Conditioner
Particles and rust can collect inside the LG-X unit and over time cause a ow restriction and/or diminish its effectiveness.
Open the lid of the LG-X Fuel Conditioner by unscrewing the lid screws and clean the magnet and fuel chamber. Inspect
O-rings prior to reassembly.
Suction and Discharge Hoses
We recommend replacing the suction hose every year and the discharge hose every two years. Heavy use, visual
deterioration, damage or poor condition and excessive wear can require an even earlier change.

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEW
Servicing Fine Filter(s)
There are two types of AXI International spin-on ne lters available.
1. The standard 3 or 10 or 25 micron ne lter (FF-3, FF-10, FF-25)
2. The special 3 or 10 micron water block ne lter. (WB-3, WB-10)
The AXI International Water Block removes entrained and emulsied water from fuel and oil.
Changinf Filters:
The pressure gauge on the lter head shows the pressure drop over the lter. Red or 20-25 PSI indicates when the spin-on
lter element should be replaced.
1. Before replacing the lter element, place an appropriate container under the drain valves.
2. Open both the drain valve on the separator and the drain valve under the pump. Use the air purge valve on top of the
separator to make sure all uid has been drained from the system before changing the lter.
3. The water block lters are used to remove entrained and emulsied water from the fuel/oil stream. Saturation of water
block lter will cause the pressure drop over the lter to increase.
4. When the pressure drop over the lter blocks the fuel ow and the lter element is not changed, the bypass valve in the
pump may open and the system will idle. This should only be allowed to happen for no more than 30 seconds.
5. Apply a lm of lubricating oil to the gasket of the new lter. Screw lter on to the ow adaptor until the gasket is tight and
secure (an additional 1/2 to one turn after the lter makes contact with the gasket).
6. Check for leaks when re-starting and pressurizing the system.
The material trapped inside the lter can be inspected to better understand the types of contaminants that have been
removed from the tank.
! IMPORTANT ! The internal bypass valve of the pump can only be operated for less than 30 seconds.
Longer periods can lead to overheating the fuel in the pump head, cause re and explosion hazard as well
as damage the pump.
Note: Disposal of fuel, associated waste, and lters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.
MAINTENANCE

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
MAINTENANCE OVERVIEW
Safety Notes
• The MTC Pump is designed to be used with diesel fuel and oils only. The pump is NOT designed for gasoline, alcohol
or other explosive or corrosive liquids.
• Please contact us if you are not sure if the liquid you are intending to polish and clean is compatible with the MTC
system.
• Biocides are extremely toxic and may enter the body through the skin. It is recommended to use adequate protection
and avoid skin contact with biocide-treated fuels and oil.
• Disposal of tank sludge, water and lter elements should be done in accordance with Federal, State and Local
regulations. These materials need to be treated as chemical waste.
! WARNING ! DO NOT USE WITH GASOLINE. This System is not meant for use with gasoline nor with other
ammable liquids having a ash point less than 100°F (38°C). Use with gasoline or any ammable liquids
at a temperature exceeding their ash point, presents explosion and re hazards.
! WARNING ! Care must be taken not to operate the pump with either the suction (inlet) or discharge (outlet)
lines closed or obstructed. If the pump is allowed to run without fuel serious damage may occur. Only run
the system when you are able to supervise it. Unattended Operating of the MTC is NOT recommended.
! WARNING ! Some fuels may have been treated with biocides. Biocides are extremely toxic and may enter
the body through the skin. Use adequate protection and avoid contact.
Note: Disposal of fuel, associated waste, and lters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.
Note: We highly recommend installing the optional Digital Flow Meter in the discharge hose of the MTC (can also be factory
equipped – if requested). The Digital Flow Meter is an excellent tool to monitor the performance of the equipment and will
measure how much fuel has been processed through the MTC.

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SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
OVERVIEW
MAINTENANCE
Troubleshooting
No fuel delivery
1. Pump does not run
2. Pump is not primed
3. Fuel supply line blocked
4. Excessive lift
5. Air leak in fuel supply to pump
6. Pump rotation direction incorrect
7. Intake or outlet valve closed
8. Check valve installed backwards
Insufcient fuel delivered
1. Air leak at inlet
2. Defective pressure relief valve or check valve
3. Excessive lift
4. Pump worn
5. Inoperative foot valve
6. Piping improperly installed or dimensioned
7. Primary lter/water separator plugged
Rapid pump wear
1. Pipe strain on pump causing bind
2. Worn pump/motor coupler
3. Pump has been run dry or with insufcient fuel
4. Plumbing on inlet side not appropriately dimensioned
Vacuum gauge shows more than 15”HG:
1. Restriction on inlet side too high
2. Lift too high
3. Inoperative foot valve
4. Inlet ball valve not fully open
5. Suction line/Coalescer/Strainer/LG-X Fuel Conditioner
clogged
Pressure gauge in red area or more than 20 – 25 PSI
with clean or new lter element installed
1. Restriction on discharge side too high
2. Head (lift) on discharge side too high
3. Check lter for water saturation (WB only)
4. Outlet ball valve not fully open
5. Discharge line clogged
Pump requires too much power
1. Air in plumbing lines
2. Liquid too viscous
3. Bent pump shaft, binding rotor
4. Misalignment of pump/motor coupler
Noisy operation
1. Insufcient fuel supply
2. Air leaks in the inlet pipe
3. Air or gas in fuel on the suction side
4. Excessive pump load (vacuum > 15”HG)
Pump requires frequent re-priming
1. Inoperative foot valve
2. Inoperative check valve
3. Inoperative solenoid valve (optional)
4. Pump cavitations
5. Plumbing air leaks
6. Lift too high
7. Leaking pump seal
Motor does not turn or turns intermittently
1. Control power not available
2. Motor thermal overload condition
3. Pump failed and seized
4. Motor failure
5. Emergency Button depressed
Pump leaks fuel
1. Loose pump plumbing ttings
2. Worn pump shaft seal
3. Pump pressure relief valve failure
4. Fuel leak elsewhere and fuel dripping or running
towards the pump
5. Excessive head from overhead storage tank
6. Worn pump O-rings or seals

17
SYSTEM COMPONENTSPRIMARY INSPECTIONINSTALLATION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303500011217
MAINTENANCE OVERVIEW
Replacement Filter Chart
MTC SERIES FILTERS
Cartridge Filters
TK-240
MTC-500
MTC-1000
MTC-3000
Spin-on Filters
10µ 40µ ss 1µ B100/bio 3µ 3µ WB 10µ 10µ WB 25µ 3µ X-Glass
TK-081 TK-083 WBS-3 FFS-10
15µ wb
TK-082
30µ 60µ ss 80µ ss
TK-084
MTC-X FF-1 FF-3 WB-3 FF-10 WB-10 FF-25 FFZ-3
FF-1 FF-3 WB-3 FF-10 WB-10 FF-25 FFZ-3
FF-1 FF-3 WB-3 FF-10 WB-10 FF-25 FFZ-3
FF-1 FF-3 WB-3 FF-10 WB-10 FF-25 FFZ-3
all filters are absolute, unless otherwise noted | wb: waterblock | ss: Stainless steel Screen

18 REV0303500011217
AXI INTERNATIONAL WARRANTY - LIMITED WARRANTY
AXI International makes every effort to assure that its products meet high quality and durability standards and expressly warrants the products described herein
against defects in material and workmanship for a period of one (1) year from the date of purchase. This warranty is not intended to supplant normal inspection,
care and service of the products covered by the user, and shall not obligate AXI International to provide free service during the warranty period to correct breakage,
maladjustment, or other dif culties arising out of abuse, misuse, or improper care and maintenance of such products. Our express warranty is subject to the following
terms and conditions:
This warranty shall only extend to and is only for the benet of original purchaser(s), or end customer(s) who use the products covered hereby and subject to the terms
and conditions herein. This warranty is not an on-site warranty. Travel requests will be at the discretion of AXI International. Defective systems and ancillary products
will require a return authorization number and shipping to AXI International’s factory in Fort Myers, FL. Any warranty claim received by AXI International after one (1)
year from the date of purchase will not be honored even if it is claimed that the defect occurred prior to one (1) year from the date of purchase. Claims outside of this
one (1) year period, and for claims not listed within, payment, repair, or service will be awarded at the sole and exclusive discretion of AXI International.
This Warranty shall NOT apply to the following:
1. Damage or deterioration caused by normal wear and tear.
2. Failures caused by any external cause or act of God, such as accident, collision, theft, vandalism, riots, wars, re, freezing, lightning, earth-quakes,
windstorms, hail, volcanic eruptions, oods, tornados or hurricanes.
3. Failures due to alterations, adjustments, unauthorized changes to the product(s), neglect or improper storage, repair and/or maintenance.
4. Failures due to abuse or application of the product(s) for uses other than for which it/they are designed or intended by AXI International, including but
not limited to, improper installation or location in a harsh, corrosive or saltwater environment.
5. Failures resulting from attachments, accessory items, and parts not sold by AXI International.
6. Repairs by any party other than those authorized by AXI International.
7. Failures resulting from user’s delay in making the product available for inspection by AXI International after notifying AXI International of a potential
product problem.
8. Cosmetic damage, discoloration, rusting, corrosion or scratches from applied paint.
9. Replacement of consumables such as, but not limited to, fuses, lamps, lters, etc.
10. Additional expenses for repair after normal business hours, i.e., overtime or holiday labor rates.
11. Expenses for rental of equipment during downtime and/or performance of warranty repairs.
12. Expenses related to investigating performance complaints and/or troubleshooting where no manufacturing defect is found.
In addition to the limitations above, this warranty shall not apply to products (1) which have been tampered with, altered or repaired by anyone other than AXI
International without the express prior written consent of AXI International (2) which have been installed improperly or subject to misuse, abuse, accident, negligence
of others, improper operation or maintenance, neglect or modi cation, or (3) which have had the serial number altered, defaced or removed.
The liability of AXI International under this warranty is limited to the repair or replacement of the defective product. AXI International assumes NO LIABILITY for labor
charges or other costs incurred by any purchaser incidental to the service, adjustment, repair, return, removal or replacement of products. AXI INTERNATIONAL
ASSUMES NO LIABILITY FOR ANY GENERAL , SPECIAL, INCIDENTAL, CONSEQUENTIAL, CONTINGENT OR OTHER DAMAGES UNDER ANY WARRANTY,
EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, WITH THE RESPECT TO THE PRODUCTS
COVERED BY THIS WARRANTY POLICY, EXCEPT AS EXPRESSLY PROVIDED FOR HEREIN. AXI INTERNATIONAL ASSUMES NO LIABILITY FOR ANY
GENERAL, SPECIAL, INCIDENTAL, CONSEQUENTIAL, CONTINGENT OR OTHER DAMAGES EVEN IF SUCH DAMAGES ARE A DIRECT RESULT OF
AXI INTERNATIONAL’S NEGLIGENCE. NO EMPLOYEE, AGENT, REPRESENTATIVE OR DISTRIBUTOR IS AUTHORIZED TO MAKE ANY WARRANTY ON
BEHALF OF AXI INTERNATIONAL OTHER THAN THE EXPRESS WARRANTY PROVIDED FOR HEREIN.
AXI International reserves the right at any time to make changes in the design, material, function and specications of its products. Any such changes shall not obligate
AXI International to make similar changes in such products that were previously manufactured.
To the fullest extent permitted by law, any claims against AXI International are limited to the remedies as expressly set forth in this warranty and any other further
claims, such as but not limited to, compensation for any damage incurred other than to the AXI International product, are hereby excluded.
Warranty Claim Procedure
To make a claim under this warranty, please call AXI International at [phone] or 1-877-425-4239, and provide: Name and location where unit was purchased,
the date and receipt of purchase, model number, serial number, and a detailed explanation of the problem you are experiencing. The Customer Service Representative
may, at the discretion of AXI International, arrange for a Field Engineer to inspect your system. If the inspection reveals a defect covered by its limited warranty, AXI
International will either repair or replace the defective parts or products. AXI International assumes no liability, if upon inspection, AXI International or its representative
determines that there is no defect or that the damage to the system resulted from causes not within the scope of this limited warranty and customer shall be
responsible standard rates incurred by AXI International, as established from time to time by AXI International.
For service and sales, please contact AXI International:
AXI International | 5400 Division Drive Fort Myers, FL 33905
Tel: [phone] | Toll Free: [phone] | Fax: [phone]
Email: [email protected] | Internet: www.axi-international.com

19
REV0303500011217
TECHNICAL ASSISTANCE AND ORDERING
Please write, fax, email or call:
AXI International
5400 Division Drive
Fort Myers, FL 33905
Tel: [phone]
Fax: [phone]
Email: [email protected]
Internet: www.axi-international.com
Please provide the following information:
Serial Number of your MTC-500, the required part numbers and quantity. The drawings/parts list included in this manual are the most accurate source of part
numbers for your MTC-500.
Replacement Filter Elements
Fine Filter:
FF-1 - 1µ spin-on lter cartridge (not water blocking)
FF-3 - 3µ spin-on lter cartridge (not water blocking)
FF-10 - 10µ spin-on lter cartridge (not water blocking)
FF-25 - 25µ spin-on lter cartridge (not water blocking)
FFZ-3 - X-Glass 3µ Absolute spin-on lter cartridge (not water blocking)
WB-3 - 3µ water blocking
WB-10 - 10µ water blocking
Also available:
• Digital Flow Meter
MTC-500 SYSTEM IDENTIFICATION
Serial Number: ___________________________________________ (e.g. B070010-500)
Voltage:
❑115V/60Hz/15A
❑230V/50Hz/15A
Fine Filter(s):
❑FF-1 - 1µ spin-on lter cartridge (not water blocking)
❑FF-3 - 3µ spin-on lter cartridge (not water blocking)
❑FF-10 - 10µ spin-on lter cartridge (not water blocking)
❑FF-25 - 25µ spin-on lter cartridge (not water blocking)
❑FFZ-3 - X-Glass 3µ Absolute spin-on lter cartridge (not water blocking)
❑WB-3 - 3µ water blocking
❑WB-10 - 10µ water blocking
Inspected By: ____________________________________________ Date:____________

22 REV0305220001200
AXI.InternationalAXInternationalAXIFuel AXIFuel
1.239.690.9589
1.877.425.4239 Toll Free
www.AXI-International.com
Mission Critical Fuel Storage Marine Government
Mining Agriculture Power Gen Railway
Military
On-Road
AXI International, industry leaders in Intelligent Fuel Management Solutions, has specialized in complete fuel system
management and control technologies for over twenty years. Our growth and continued success rides on our ability
to adapt to the needs of our customers, opening up opportunities to expand our product oering. To the benet of
our customers and the AXI network, we’ve become very ecient at doing so - faster than any other company in the
industry.
Our current line of solutions include enclosed, mobile, and compact fuel management systems, partial and fully
enclosed day tanks, pump sets, ll stations, Tier 4 fuel additives, centralized system monitoring, and other total fuel
system management solutions. These high quality, innovative solutions are engineered to exceed industry standards
for customers worldwide.
AXI also designs, engineers, and manufactures custom built complete fuel management systems– working side by
side with customers, architects, engineering rms, and facility management companies to create innovative solutions
that meet the highest of standards and specications. From concept and design consultation, to specication review,
development, and start-up, our in-house engineering professionals excel in transforming challenging projects into
innovation opportunities.
AXI International Intelligent Fuel Management Systems – experience the power of ultra clean fuel.