Axi MTC HC-50 Installation guide

MTC HC-50 INSTALLATION,
OPERATING, AND
MAINTENANCE MANUAL
High Capacity Mobile Tank Cleaning, Fuel
Optimization, and Transfer System
AXI.International AXInternational AXIFuel AXIFuel
1.239.690.9589
1.877.425.4239 Toll Free
www.AXI-International.com REV0303HC50011217

MTC HC-50
High Capacity Mobile Fuel Polishing System
The MTC HC-50 Mobile Fuel Polishing System is a high capacity system designed to efficiently and safely clean and restore
fuel to pristine condition. The MTC HC-50 incorporates a multi-stage filtration process that reconditions, stabilizes and
decontaminates diesel, biofuels, light oils and hydraulic fluids. All MTC HC systems are specifically designed for tanks with
contaminated fuel that require the removal of water, sediment, and sludge accumulation.
MTC HC-50 SPECIFICATIONS
MTC HC-50 SERIES FEATURES:
High Capacity Multi-stage Water Removal,
Particulate Filtration, and Fuel Conditioning
Multiple Discharge and Sampling Ports
Large Contaminant Holding Capacity
Robust Compact Industrial Design
Liquid-Filled Vacuum and Pressure Gauges
AXI Watect Water Sensor
PLC Smart Filtration Systems Controller
1.239.690.9589
AXI.International AXInternational AXIFuel AXIFuel
1.877.425.4239 Toll Free
www.AXI-International.com
Flow Rate Adjustable 25 GPM to 75 GPM
(94.6 LPM to 284 LPM)
Primary Filter Carbon Steel Pre-Filter Housing
Filter Bags Replaceable Filter Bags 1 – 800μ
Secondary Filter Carbon Steel Filter Housing
Filter Cartridges Particulate Filter 2-30μ Water Block Filters 5,
10, 30μ, Absolute Microglass Filters 3-10μ
Water Separator AXI FP-90 With Drain Valve and Air Vent
Fuel Conditioner LG-X 4000 Inline Conditioner
System Controller Programmable, Fully Automated UL 508A
SMART Filtration Controller with BMS/BAS
Interface and Digital Text Readout (Optional)
Dimensions 59” x 36” x 45” (H x W x D)
Ports 2” Cam & Groove In
2” Cam & Groove Out
Connectors Cam & Groove Fittings with Covers
Pump Power
50 GPM (189 LPM) - 25 SCFM @ 90psi (620.5 kPa)
70 GPM (265 LPM) - 50 SCFM @ 90psi (620.5 kPa)
1/2” Air Hose Connection
(150 x 91 x 114 cm)
Weight ≈ 630 lbs (286 kg)
Not for use with fluids that have a flash point below 100°F (37.8°C).
Air Requirements
Adjustable Flow Rate
Air Driven, Double Diaphram Pump
Hoses 2” - 25 ft (7.6 m) Clear Suction Hose
2” - 25 ft (7.6 m) Discharge Hose
REV0203HC50011217

Filtration options for bag filters range from 1-800μ.
Contact a sales representative for all available options.
Digital Flow Meter
AFC 705/710 Fuel Catalyst
8” Pneumatic Wheels
- Skid Mounted
PLC Controller
MTC HC-50 OPTIONS
REPLACEMENT FILTER OPTIONS
MTC HC SYSTEM INTEGRATION
MTC HC-50
High Capacity Mobile Fuel Polishing System
1.239.690.9589
AXI.International AXInternational AXIFuel AXIFuel
1.877.425.4239 Toll Free
www.AXI-International.com
Water Separator
SMART Controller
Alarm Light
Air Connection
Pre Filter
Cart/Drip Tray
Quick Connect/Disconnect Inlet
(Ball Valve)
Pneumatic Pump
Quick Connect/Disconnect
Discharge Port 1 (Ball Valve)
Quick Connect/Disconnect
Discharge Port 2 (Ball Valve)
Fine Filter
AXI Inline LG-X 4000 Conditioner
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REV0203HC50011217

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 .........................................................................................................................................................
Controller..............................................................................................................................................................................
Maintenance ........................................................................................................................................................................
Preventative Maintenance ............................................................................................................................................
Servicing Pre-Filter/Water Separator ..........................................................................................................................
Servicing Final Filter(s) ..................................................................................................................................................
Saftey Notes ...................................................................................................................................................................
Troubleshooting .............................................................................................................................................................
Filter Chart ......................................................................................................................................................................
Warranty ...............................................................................................................................................................................
Parts/Service ......................................................................................................................................................................
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REV0303HC50011217

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OVERVIEWSYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
General Overview
MTC HC-50 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 ................................................................
System Weight .......................................................................
Operating Temperature ..........................................................
Pump .......................................................................................
Fuel Conditioner .....................................................................
Inlet ..........................................................................................
Outlet(s) ..................................................................................
Adjustable 25 GPM to 75 GPM
(94.6 LPM to 284 LPM)
59” x 36” x 45” (150 x 91 x 114 cm) (H x W x D)
≈ 630 lbs (286 kg)
41 - 104°F (5 - 40°C)
Adjustable Flow Rate Air Driven, Double Diaphram Pump
LG-X 4000
2” Cam & Groove
2” Cam & Groove
OVERVIEW

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
OVERVIEW
System Components
Control and Safety Devices
• AXI International “Smart Filtration Controller” in electrical sub enclosure – UL 508A listed Industrial Control Panel
• Pump control switch (Auto/Off/Manual), weatherproof, key operated
• Alarm Reset --‐ weatherproof push button
• Power available indicator
• Inlet and outlet shut off ball valves
• Internal pressure relieve valve
• Primary lter high vacuum alarm indicator and system shutdown (vacuum sensors)
• Mechanical water separator high water alarm indicator and system shutdown (water sensors)
• Secondary lter high pressure alarm indicator and system shutdown (pressure sensors)
Pump
• Adjustable Flow Rate, Air Driven, Double Diaphragm Pump
Pre-Filter/Water Separator
• Drain valve on the bottom
Final Filter
• Down to 1µ nominal, 3µ absolute, and 5µ water blocking lter
• Pressure gauge
• Isolation ball valves for lter changes
Fuel Conditioner
• Inline Magnetic Fuel Conditioner eliminates and prevents the formation of sediments that naturally occur in diesel fuel
and bio-blends
Black Steel Plumbing
SYSTEM COMPONENTS

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERMAINTENANCE
REV0303HC50011217
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, 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 Inlet Port and exits through the Discharge Port 1 (before ne lters)
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 INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
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. Connect a “snorkel” to the tank end of the suction hose. The snorkel is obtained locally and fashioned according to the
requirements of the particular job. In general, the snorkel is a piece of PVC pipe cut at an angle to facilitate removal of
water and contaminants, when the “snorkel” is inserted into the fuel tank.
Note: Avoid restricting the ow on the suction side of the system. If it is necessary to use a smaller ID suction hose, a smaller
ID “snorkel”, or if the length of the suction hose is increased, reduce the ow rate so that the vacuum gauge remains in the
green color band.
2. Connect the Suction hose to the Inlet Port.
Note: If your system is equipped with the optional ow meter please make sure to use at least a 400 micron ltration
upstream of the Digital Flow Meter in order to protect the Digital Flow Meter.
3. Connect the Discharge Hose to the Discharge Port 1.
4. Check all connections for integrity.

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
OPERATION OVERVIEW
5. Install a bag lter in the Bag Filter Vessel and close vessel securely
6. Install a lter element in the Final Filter Vessel and close vessel securely
7. Open the Inlet Ball Valve.
8. Open the Discharge Port 1 Ball Valve.
9. Insert suction “snorkel” into the tank and secure.
10. Insert discharge hose into separate container for disposal.
11. Verify that the manual/off/switch is in the “OFF” position.
12. Connect the system to an appropriate power source.
13. Switch the Smart Filtration Controller circuit breakers to on - the “System Power” light illuminates.
14. Switch the Smart Filtration Controller to “MANUAL” and turn on air supply (not included) to begin pumping.
17. Observe System Priming (Suction line is transparent).
18. Check for leaks or other abnormalities.
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 ne lters. It should be noted that meeting required cleanliness codes is typically not possible with
per-ltering alone. Phase Two is used to extend the life of the ne lters, and remove the worst of the contaminants, before
polishing with ne lters to meet the required cleanliness.
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.

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SYSTEM COMPONENTSPRIMARY INSPECTIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
OVERVIEWOPERATION
Phase 3:
Phase Three is the most important phase in meeting specic cleanliness codes. Unlike the pre-lter, the ne lter 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 ne lters.
1. Connect the Discharge Hose to the Discharge Port 2.
2. Switch the Smart Filtration Controller to “MANUAL” and turn on air supply (not included) to begin pumping.
3. If “High Suction” conditions/alarms halt the operation, it is most likely possible to continue operations at a reduced ow
rate.
4. Monitor process and change bag lters and lter elements as necessary.
5. The Bag Filter Vessel has two vacuum gauges. The upper gauge indicates the vacuum loss in the suction line, and the
bottom gauge indicates the total vacuum at the pump inlet. The difference between the two gauges is the vacuum loss
across the lter bag. Replace the lter bag when the difference between the two gauges exceeds 15” Hg. The Smart
Filtration Controller monitors the vacuum level during operation, and will halt the system and illuminate the Alarm light
when the lter bag needs to be replaced.
6. The Final Filter Vessel has two pressure gauges. The difference between the two gauges is the pressure drop across
the nal lter element. Replace the nal lter element when the pressure drop reached 20 PSI. The Smart Filtration
Controller monitors return line pressure during operation, and will halt the system and illuminate the alarm light when
the nal lter needs to be replaced.
7. Water Alarm: If signicant water accumulates in the AXI FP-90 Water Separator, operation will be halted by the Smart
Filtration Controller and the alarm light will illuminate on the Smart Filtration Controller. Using the Water Separator Drain
Valve, drain the water from the Water Separator into an appropriate container, and resume operation.

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SYSTEM COMPONENTSCONTROLLERMAINTENANCE
REV0303HC50011217
OPERATIONCOMMISSIONING PRIMARY INSPECTIONPRIMING OVERVIEW
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. 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 Accumulating
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 COMPONENTSOPERATIONCONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
PRIMARY INSPECTION OVERVIEWPRIMING
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 terminals and connections for tightness.

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONCOMMISSIONINGMAINTENANCE
REV0303HC50011217
PRIMING CONTROLLER OVERVIEW
Priming the System
Priming Procedure
There is no need to ll the system with fuel prior to startup. The diaphragm pump is self-priming. It is however very important
to prevent pump damage by slowly starting the pump with low air pressure values, between 20 to 30 PSI, especially if there
is no liquid in the pump. Once the complete system and hoses are primed and full of fuel, you can increase the air pressure
to achieve the desired ow rate.
An advantage of starting the process with low air pressure (and therefore low ow rate) is observing the liquid coming from
the bottom of tank to see if it is pumping water, debris, and/or fuel.
! IMPORTANT ! Never exceed 18”HG on vacuum gauge located before of pump.

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMINGCOMMISSIONING
REV0303HC50011217
CONTROLLERMAINTENANCE OVERVIEW
Controller (Optional)
Make sure that the system’s power requirements and rated voltage/frequency match the electrical system (See wiring
diagram and/or marking on Smart Filtration Controller). The Smart Filtration Controller should only be connected to properly
grounded power sources for operator safety. Do not run over, crush, or pull the power supply cable and wiring harness to
prevent damage. Protect the cables from oil, heat, and sharp edges.
! IMPORTANT ! The system must be properly grounded for operator safety.
Pump Operation (With Controller)
Apply control power to unit. Place breaker on the AXI Smart Filtration Controller in the “ON” position.
Automatic:
Place the selector switch in the “AUTO” position. When the pendant switch is pushed, the pump will start and run until the
pendant switch is pressed again, switching the system to “OFF” mode, or until an alarm has been tripped.
Manual:
Place the selector switch in the “MANUAL” position. The pump motor will run until the switch is returned to the “OFF” or
“AUTO” mode positions, or until an alarm has been tripped.
Pump Operation (Without Controller)
Connect air supply line and turn on air supply valve.
Alarms
The system is equipped with an AXI International Smart Filtration Controller. System and alarm status are displayed on the
industrial control panel (on the door) via indicator lights, and text box.
Alarms featured on the system include:
• Leak Detection
• Low fuel ow alarm indicator
• Primary lter/water separator high vacuum alarm indicator and system shutdown (vacuum sensor)
• Primary lter/water separator high water alarm indicator and system shutdown (water sensor)
• Secondary lter high pressure alarm indicator and system shutdown (pressure sensor)
• External remote shut-down feature
Once triggered alarms are addressed, each alarm can be reset by pressing the weatherproof “ALARM RESET” push button
located on the outside of the enclosure door.

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONING
REV0303HC50011217
MAINTENANCE OVERVIEW
Maintenance
! 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.
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 INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONING
REV0303HC50011217
MAINTENANCE OVERVIEW
Servicing Fine Filter(s)
There are two types of AXI International ne lters available.
1. 2 to 30 micron particulate lter
2. 5 to 30 micron water block ne lter
The AXI International Water Block removes entrained and emulsied water from fuel and oil.
Changing Filters:
The pressure gauges on the ne lter vessel show the pressure drop over the lter. 20-25 PSI indicates when the lter
element should be replaced. The water block lters are used to remove entrained and emulsied water from the fuel
stream. Saturation of water block lter will cause the pressure drop over the lter to increase (even if the pleated lter paper
does not show any contaminates).
1. Before replacing the lter element, close the valves prior and after the ne lter vessel for complete isolation. Make sure
all pressure in the system has been released (open air vent valves carefully and slowly).
2. Make sure pump is turned off, and then open the lid.
3. Replace lter element and hand tighten top seal plate nut. Check inner housing and basket for debris and sludge and
remove if necessary.
4. Apply a lm of lubricating oil to the lid gasket. Replace O-Ring if worn or damaged.
5. Tighten lid screws evenly (alternating the screws) to ensure lid is fully seated onto O-Ring gasket.
6. Verify inlet and outlet valve positions for proper operation mode and make sure all drain and air vent valves are closed.
7. Check for leaks and vent air from lter housing when re-starting 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.
Note: Disposal of fuel, associated waste, and lters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.

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SYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONING
REV0303HC50011217
MAINTENANCE OVERVIEW
Servicing Bag Filter
Note: Always have an adequate supply of lter elements on hand.
Changing Bag Filter:
The vacuum gauges on the bag lter vessel show the pressure drop over the lter. 15”HG vacuum indicates the bag lter
element should be replaced.
1. For a “no mess” bag lter change, the bag lter vessel should be pumped empty.
2. Close the inlet ball valve and then open the air purge valve on the top of the bag lter housing to allow air to enter.
3. Turn on the pump at low air pressure (low ow) for a couple strokes until fuel is removed from the bag lter vessel
(pumped dry).
4. Make sure pump is turned off, pressure is released and discharge valve after the pump is closed (close all discharge
valves), then open the lid.
5. Replace bag lter element, making sure it seals tight within the perforated basket. For best results bag should be fully
extended into the basket. Check inner housing and basket for debris and sludge and remove if necessary. Also ensure
that the basket is seated correctly and tight on the O-Ring within the bag lter vessel.
6. Apply a lm of lubricating oil to the lid gasket. Replace O-Ring if worn or damaged.
7. Tighten lid screws evenly (alternating the screws) to ensure air cannot enter the system and lid is fully seated onto
O-Ring gasket.
8. Verify inlet and outlet valve positions for proper operation mode.
The material trapped inside the lter can be inspected to better understand the types of contaminants that have been
removed from the tank.
Note: Disposal of fuel, associated waste, and lters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.

18
OVERVIEWSYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONINGMAINTENANCE
REV0303HC50011217
MAINTENANCE
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.

19
OVERVIEWSYSTEM COMPONENTSPRIMARY INSPECTION OPERATIONPRIMING CONTROLLERCOMMISSIONING
REV0303HC50011217
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
Alarm “HIGH VACUUM ALARM” comes on with clean
or new lter element installed:
1. Strainer(s) are clogged
2. Heavily contaminated fuel/excessive water in tank
3. Restriction in plumbing on inlet side too high
4. Excessive lift
5. Inoperative foot valve
6. Inlet ball valve not fully open
7. Suction line clogged
Alarm “HIGH PRESSURE ALARM” comes on with
clean or new lter elements 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
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
MAINTENANCE

REV0303HC5001200
Replacement Filter Chart
Efficiency (@micron)
JPM Series Filters
Beta (@micron)
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR G618-10-SR
98.00% 98.00% 98.0% 98.00% 98.00% 99.50% 99.50% 99.50%
50.0 50.0 50.0 50.0 50.0 200.0 200.0 200.0
MTC HC-50
MTC HC-90
MTC HC-150
2µ 10µ 10µ WB 30µ 30µ WB 3µ Micro Glass 7µ Micro Glass
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR
10µ Micro Glass
G618-10-SR
G618-10-SR
Viking 4F 618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR G618-10-SR
FV-150
Viking 3F
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR
G618-10-SR
G618-10-SR
FV-120 618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR G618-10-SR
618-2-w 618-10-w WA618-10-w 618-30-w WA618-30-w G618-3-SR G618-7-SR G618-10-SR
When ordering, filters listed in MTC HC Series are to be prefixed with series name (E.G. HC-50 5µ Filter: CF618-5)
Filter Bags
PF-10HD
PF-30HD
MTC-X
MTC HC-50
1µ 25µ
PFB-30-1
PFB-30-1
PFB-30-1
MTC HC-150 PFB-150-1
5µ 10µ 75µ 250µ 800µ
PFB-30-1
PFB-30-5
PFB-30-5
PFB-30-5
PFB-150-5
PFB-30-5
PFB-30-10
PFB-30-10
PFB-30-10
PFB-150-10
PFB-30-10
PFB-10-25
PFB-30-25
PFB-30-25
PFB-30-25
PFB-150-25
PFB-30-25
PFB-10-75
PFB-30-75
PFB-30-75
PFB-30-75
PFB-150-1
PFB-30-75
PFB-10-250
PFB-30-250
PFB-30-250
PFB-30-250
PFB-150-250
PFB-30-250
PFB-10-800
PFB-30-800
PFB-30-800
PFB-30-800
PFB-150-800
PFB-30-800MTC HC-90
MTC HC SERIES FILTERS
JPM SERIES Cartridge Filters
all filters are absolute, unless otherwise noted | wb: waterblock
MTC HC-300 PFB-150-1 PFB-150-5 PFB-150-10 PFB-150-25 PFB-150-1 PFB-150-250 PFB-150-800