MTT/MWT-MEGA RIGID FRAME TRUCK TANK
GENUINE MEGA.MTT/MWTAPPLICATIONS FOR CATERPILLAR RIGID TRUCKSMTT/MWT-MEGA RIGID FRAME TRUCK TANK
GENUINE MEGA.SPECIALTY HAULAGE SOLUTIONS FOR CONSTRUCTION AND MININGFor over 35 years, Mega has been manufacturingwater & fuel tanks, coal haulers & bottom-dumptrailers, equipment transports, specialty dumperbodies, mobile pumps and, most recently, elevating scrapers for use in construction andmining applications around the world. Megadesigns and manufactures all of its productsand sells and supports these products throughOEMconstruction&miningequipmentdealers worldwide.Mega products are designed to work properly withCaterpillar’s products, to maintain full Caterpillar warranty and to utilize Caterpillar componentryto the greatest extent possible. Mega warrantsall of its products for one year/unlimited hours.Mega manufactures its products in its facilities atits headquarters in Albuquerque as well as withmanufacturing partners in Chile, Colombia, SouthAfrica, Australia, India and the United Kingdom.Mega provides equipment and parts salesand technical support to its dealers andend-customers for all of its products around theworld.We look forward to serving you!PresidentMEGA CORP. 700 Osuna Rd. N.E. Albuquerque, NM 871131-800-345-8889 505-345-2661 Fax 505-345-6190www.megacorpinc.comTABLE OF CONTENTSMTT/MWT-MEGA RIGID TRUCK TANK . 1MEGA Anti-Surge Stabilization System (M.A.S.S.) . 2DiSCS Digital Spray Control System . 3-4MEGA Spray System Cab Control . 5M4B Water Pump. 5MEGA Standard Features . 5-9Color Exterior . 6Direct Pin Mounting . 6Flexible Front Mounting. 6Banded Internal Access Manways . 6Access Ports & Anti Skid Manways . 6Fort Port . 6Ladder & Hand Rails . 7LED Lighting & Utility Lights . 7Fall Protection Tie Off Points . 7Mud Flaps . 7MTT/MWT Technical Manuals . 7MEGA Spray Head Valves . 8MEGA Hydraulic Spray Head . 8MEGA Pneumatic Spray Head . 8Rear Spray Bar . 8Spray Capability . 9MEGA Optional Features . 10-14Factory Installation . 10Hose Reel . 10Splash Guard . 10Rock Ejectors . 10Conical Fill Port . 10Dump Bar. 11Dump Valve . 11Vertical Side Spray. 11Swivel Couplings . 11Intermittent Spray Package . 11MEGA Water Cannon . 12MEGA Hydraulic Water Cannon . 12MEGA Foam Agent Fire Suppression System .13MEGA Nozzles . 13Hoist Cylinder Compatible . 14Corrosion Resistant Options . 14Quick Change Component Package . 15MTT9 CAT769. 16MTT/MWT9 CAT770 Tank Dimensions . 17MTT/MWT13 & 15 CAT773 & CAT775 Tank Dimensions . 18-19MTT/MWT20 CAT777 Tank Dimensions . 20MTT/MWT30 CAT785 Tank Dimensions . 21MTT42 CAT789 Tank Dimensions . 22MTT/MWT52 CAT793 Tank Dimensions . 23MEGA WARRANTY . 24
MTT/MWT-Mega Rigid Frame Truck TankTHE MOST EFFECTIVE AND MOST DURABLE WATER TANK IN THE MARKETMTT/MWT-Mega Rigid Frame Truck Tank water tank kits aredesigned for conversion of off-highway type, rigid frame,dump truck chassis with carrying capacities between 40and 320 tons into water hauling distribution machines fordust and fire suppression. The MTT kit requires a dealer/customer supplied truck chassis. Factory installation andtesting is available on some models. Field installationassistance by factory trained Product Support personnelis also available.The MTT model is designed to fit a customer specified andprovided truck chassis. MTT tank models can be factoryinstalled and tested at our facility but are generally shippedin kit form for field installation at either the customer shopfacility or on the work site.Mega tanks are constructed with high quality materialsand are thoroughly inspected both during and after themanufacturing process to ensure the best tank spray systemin the market today. Every tank kit includes full manualsfor installation, operation, maintenance and parts. Megamaintains complete stocks of repair and replacement partsand components available for immediate shipment. We alsooffer support parts kits for every model of tank we make.The Mega product support team is available to assist withall facets of installation via phone or e-mail. Mega stocksthe complete line of service & repair parts and orderscan be places on-line at our website or by phone. On-sitetechnical assistance is available – speak with your Mega salesrepresentative for complete details.The MWT model tank (Caterpillar Only) is a Mega suppliedcomplete water unit which may be shipped assembled fromour factory in Albuquerque, N.M. depending on customerrequirements and truck model.Available Mega MTT/MWT Water Tanks for CATERPILLAR MEGA MODELTANK SIZECHASSISCONFIGURATIONMEGA MODELTANK SIZECHASSISCONFIGURATIONFor other tractor models and custom sizes please contact Mega or your local Caterpillar dealer for more information.1
M.A.S.S-Mega Anti Surge SystemWhile Tanks May Look Similar On The Outside– It’s What’s Inside That Counts!The Mega Anti Surge System (MASS) tank baffling designbegins with a heavy duty spine that supports the rearpivot mounting. Line boring the rear pivot mounts ensuresaccurate direct pin installation of the tank. Heavy highstrength steels in critical areas ensure long failure free lifeof the tank. Proper loading of the chassis frame ensuresload stability, good machine handling, and long frame life ofthe chassis.VERTICAL BAFFLEScontrol fore/aft water movement withbanded internal access manways.Front spring type tie down mounts and sturdy adjustablebody pads ensure that the chassis is properly loadedand balanced. The compartment style baffling built ontop of the strong spine foundation controls the effectsof surging water. Fully welded baffling, properly locatedwith tightly controlled quality ensures that your Megatank is the strongest, most stable, longest lasting tankavailable today.FULL INTERNAL PIPINGfor spray system components. Optionalstainless steel piping is available with ourcorrosion resistant package.SECOND FLOORA second floor in the frontsection of the tank contains waterin the lower area, controllingwater flow and maintaining alow center of gravity.INTERNAL SHELLInternal shell controls side-to-side waterflow and provides structure connectionbetween baffles.2
DiSCS-Digital Spray Control SystemMega Spray Control SystemMost Mega water products are now available with the new Mega DigitalSpray Control System (DiSCS )*. Along with the base DiSCS System, Megais offering a GPS optional accessory that allows the operator to automaticallycontrol the amount of water applied to road surfaces based on groundspeed.Standard System Features Easy to use compact ergonomic operator interface In-cab water level indicating system Intermittent spray head function with on/off adjustments Work light and auxiliary controls Ability to control all optional spray control functions Easy to maintain and troubleshoot logic control systemsWater Pump Protections System controlled soft starts/stops to protect against operator induced sudden starts and stops that candecrease drive motor and water pump service life. Automatic soft stop when low water condition is sensed in the tank sump that may cause dry running of thewater pump. Prevents overheating of the water pump during extended water pump operation when spray heads andwater cannon valves closed (no water flowing across the pump).* Patent pending.3
DiSCS-Digital Spray Control SystemThe DiSCS GPS option works with the existing Mega spray system hardware – water pumps, hydraulic motors, sprayheads and electro-hydraulic controls. The GPS option is available for use with most Mega water products and offers thefollowing additional benefits over the base system:GPS Speed SensingDiSCS uses GPS data to determine speed. The GPS system is universal – there is no special applicationspecific engineering required and the system is not vulnerable to contamination like radar-basedsystems. NOTE: Requires purchase of DiSCS option.Self-ContainedDiSCS does not require connections to other vehicle systems to determine speed. Because it is selfcontained, it is easy to adapt to a wide variety of machine applications.Automatic Water Consumption ReductionThe DiSCS system utilizes a PWM (pulse width modulation) strategy to automatically limit the amountof water consumed based on vehicle speed while maintaining road dust control coverage. Utilizingthe PWM strategy avoids the addition of complex and costly variable flow hydraulic systems and theresulting impact on machine reliability.Automatic Shut-offThe DiSCS system automatically shuts off the flow of water as the vehicle comes to a stop to preventpuddling. Spraying automatically resumes as the machine begins to move again.Fail-SafeIn the event the DiSCS system loses its GPS speed signal or otherwise malfunctions, the systemreverts to manual mode and allows the machine to continue operating with full capability in the original,manual mode until repairs can be made – no need to immediately down the machine.VersatilityDiSCS is adaptable to most Mega water equipment and can be easily added in the field to machinesoriginally equipped with the base system described above. The control system can be retrofittedto many older models of water distribution equipment equipped with Mega spray systems withoutreplacing any hardware. And, the entire system can be used with competitive water tanks as well.ReliabilityCORP. 4DiSCS utilizes the same Mega water pump, hydraulic motors, spray heads andelectro-hydraulic controls. There are no complex modifications to the vehicle's hydraulic systemsor powertrain – in fact these interfaces do not change at all. The same durable Mega spray systemcomponents are maintained with all of the same parts supply, technical support and documentation.* Patent pending.
Standard FeaturesMega Cab-ControlThe in-cab spray control module provides independent control of each spray head, water valve and accessory of theMega water tank. Included in the cab control module is an LED type water level gauge. Our control module is built forrugged use in the harshest environments of mining and construction.Hydraulic vs. Pneumatic Spray Control SystemOlder model truck chassis included pneumatic systems which could beutilized for spray head valve and valving actuation. With the advent ofall hydraulic trucks we developed Mega current hydraulic spray controlsystems. The hydraulic system is much more dependable and ruggedeliminating the problems and maintenance issues of a pneumaticsystem. We still offer a pneumatic spray control system for those trucksthat can use it.Typical Cab Control ModuleElectro-Hydraulic Spray Control SystemFor the most demanding mining environments, and for tractors without apneumatic system we recommend Mega hydraulic spray control system.The cab control module operates our Mega proprietary hydraulic solenoidspray control module that individually actuates all spray head valves andwater valves on board. The spray control system operates independentlyfrom the water pump drive circuit. The solenoid module is housed in aweather tight steel housing.There are two electronic water level gauges, one in the cab control moduleinside the cab and the other on the solenoid control module mountedoutside the cab. Spray system oil is filtered through the filtering modulemounted on the spray control module housing. Mega Corp. fully supportsthese systems with spare parts and full time Product Support.Step BoxElectro-PneumaticThe Mega electro-pneumatic spray system provides independent control of all spray nozzles and valving. The solenoidcontrol module is mounted inside a weather resistant proof steel housing mounted on the front bulkhead of the tank.There is one electronic water level gauge on the cab control module inside the cab.NOTE: Only available on truck chassis models with pneumatic capability.Mega Water PumpsThe heart of the Mega spray system is the water pump. The water pump is actuated with the truck’s hydraulic hoistpump and valve system. Mega spray controls ensure proper integration with the truck chassis’ hoist valve and ECM.Oil is returned into the truck oil filtration and cooling system.MTT/MWT models feature the Mega M4B high performance water pump capable of over 1000 gpm or over 100 psi.The M4B series of pump also feature direct bolt on hydraulic motor mount and steel splined coupling to simplify drivemotor connection. The M4B pumps are available in both standard cast iron as well as corrosion-resistant models withstainless steel waterways.Mega M4B Water PumpMega M4B Corrosion ResistantWater Pump5
Standard FeaturesColor Exterior Alkyd Enamel PaintAll Mega tanks are fully abrasive blasted prior to application of heavyanti-corrosive prime paint then top coated with customer choice of one color. Tankcolor is most often matched to the tractor color. Custom coatings and graphics areavailable upon request.Direct Pin Mounting With Line-Bored HolesMega MTT/MWT tanks pin directly to the rear pivot mounts of the truck chassis.No welding is required at this point. New pivot pins and shims are suppliedwith the tank.Flexible Front MountingThe truck chassis is allowed to flex beneath the spring type front mounting tie downs.No welding is required to install these mounts.Banded Internal Access ManwaysInternal access to the interior of the tank is gained through the fill port. Bandedinternal manways allow for inspection of tank interior compartments.Access Ports and Anti-Skid WalkwayThe standard fill port is 914mm (36 in) diameters and located on the top center lineof the tank. A steel tread grip walkway extends from the access ladder on the frontbulkhead to the fill port. Supplemental fill ports with bolt on lids are available asoptional equipment and are included on our tanks of 113,550 liters (30,000 gallons)and larger.Fill Port With Safety GrateA bolt in trash screen safety grate is included in the main fill port. Conical shapedfill ports, custom locations, and custom design fill ports are available as optionalequipment.6
Standard FeaturesLadder and Hand Rails (excludes EU Products)All Mega tanks include an access ladder to the top of the tank. Our standard ladderfeatures tread grip rungs for a sure footed grip and hand rails at the top of the ladder forease of access to the top of the tank. Optional customized safety railing is available uponrequest to meet your exact requirements (extra charges may apply).LED Lighting & Utility LightsAll clearance, stop, and tail lighting on Mega tanks are LED type for long life and lowmaintenance. Two work lights are mounted on the rear bulkhead of the tank beneathwater shedders. The lights are controlled by switches in the cab control.Fall Protection Tie Off Points (excludes EU Products)All Mega MTT/MWT models include fall protection tie off points. Optional custom fallprotection tie off points are available and quoted upon request.Mud FlapsMud flaps fore and aft of rear drive tires are standard equipment on all Mega MTT andMWT tanks.Technical ManualsEach Mega water tank kit includes one set of the following manuals: Operators, Maintenance,Parts, Kit Installation Guide/Instructions as well as service drawings and schematics. Additionalsets of manuals are available for purchase. Please contact Parts Sales for more information.7
Standard FeaturesMega Spray Head ValvesMega Corp. developed and patented its spray heads in 1976and has continually improved them since. Each GenuineMega spray head is fully adjustable for fan volume, width,and direction. Precision water application is a simple matterof proper selection of spray head settings and the numberof spray heads activated.Standard Mega spray head valves are constructed of a highquality aluminum alloy metal. We offer optional stainlesssteel models to better resist corrosion and abrasion ofharsh waters often found in mining environments. Our sprayhead valves are available in both pneumatic and hydraulicactuated models.Mega Hydraulic Spray Head ValvesThe Mega hydraulic spray head valve utilizes a custom made high quality heavy dutydouble acting hydraulic cylinder to open and close the valve portion of the spray head.This spray head valve is suitable for any heavy equipment prime mover and requires ahydraulic solenoid spray control system.Mega Pneumatic Spray Head ValvesThe Mega pneumatic spray head valve uses air pressure produced by the prime mover’spneumatic system to actuate the spray head valve via electro-pneumatic solenoid spraysystem or manual air type pneumatic air valve switch control. Air pressure into the sprayhead valve closes the spray head. Release of air pressure from inside the top cavity ofthe spray head allows it to fully open.Rear Spray BarRear Spray BarThe rear spray bar i
manual mode until repairs can be made – no need to immediately down the machine. Versatility DiSCS is adaptable to most Mega water equipment and can be easily added in the field to machines originally equipped with the base system described above. The control system can be retrofitted
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