Multi Tech Equipment MLT20DCA6 Maintenance Trailers, Trailer Brakes, Hydraulic Brakes

Page 24

maintenance — TRAILERS

The following trailer maintenance guidelines are intended to assist the operator in preventive maintenance.

Trailer Brakes

Properly functioning brake shoes and drums are essential to ensure safety. The brakes should be inspected the first 200 miles of operation. This will allow the brake shoes and drums to seat properly. After the first 200 mile interval, inspect the brakes every 3,000 miles. If driving over rough terrain, inspect the brakes more frequently.

hydraulic Brakes

If your trailer has hydraulic brakes, they function the same way the surge brakes do on your tow vehicle.The hydraulic braking system must be inspected at least as often as the brakes on the tow vehicle, but no less than once per year. This inspection includes an assessment of the condition and proper operation of the wheel cylinders, brake shoes, brake drums and hubs.

Manually Adjusting the Brakes

Most axles are fitted with a brake mechanism that will adjust the brakes during a hard stop. However, some braking systems are not automatically adjusted by hard stopping. These brakes require manual adjustment. The following steps apply to adjust most manually adjustable brakes.

1.Jack up the trailer and secure it on adequate capacity jackstands.

2.Be sure the wheel and brake drum rotate freely.

3.Remove the adjusting-hole cover from the adjusting slot on the bottom of the brake backing plate.

4.With a screwdriver or standard adjusting tool, rotate the starwheel of the adjuster assembly to expand the brake shoes. Adjust the brake shoes out until the pressure of the linings against the drum makes the wheel very difficult to turn. Note:Your trailer maybe equipped with drop spindle axles. See axle manual for your axle type. You will need a modified adjusting tool for adjusting the brakes in these axles. With drop spindle axles, a modified adjusting tool with about an 80 degree angle should be used.

5.Rotate the starwheel in the opposite direction until the wheel turns freely with a slight drag.

6.Replace the adjusting-hole cover.

7.Repeat the above procedure on all brakes.

8.Lower the trailer to the ground.

Check the fluid level in the master cylinder reservoir at least every three months. If you tow your trailer an average of 1,000 miles per month in a hot and dry environment, you must check the brake fluid level once a month. The brake fluid reservoir is located on the tongue of the trailer. Always fill with clean, uncontaminated DOT 4 brake fluid.

Figure 13 below displays the major hydraulic brake components that will require inspection and maintenance. Please inspect these components as required using steps 1 through 6 as referenced in the “Manually Adjusting The Brakes” section on this page. See Table 4 for Hydraulic Brake Troubleshooting.

Figure 13. Hydraulic Brake Components

Hydraulic Brake Actuator

The hydraulic brake actuator (Figure 14) is the mechanism that activates the trailer’s brake system. This actuator changes fluid power into mechanical power.Therefore, the fluid level must be checked frequently to assure that the brakes function properly.

HYDRAULIC

BRAKE FLUID

RESERVOIR

Figure 14. Hydraulic Brake Actuator

page 24 — MLT20 sERIES LIGHT TOWER • operation manual — rev. #0 (01/18/13)

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Contents Models Proposition 65 warning Reporting Safety Defects NhtsaTable of Contents Specifications are subject to change without noticeSafety Information SaFeTY MessagesSaFeTY sYMBOLs Addresses practices not related to personal injuryGeneRaL saFeTY LIgHT TOWeR saFeTY LaMp saFeTYTOWIng saFeTY TRanspORTIng saFeTY Loading and Tie-Down on Flatbed TruckELeCTRICaL saFeTY „ neveR operate light towerMLT20 Series Specifications Light Tower SpecificationsGenerator/Engine Specifications Dimensions DimensionsReference Letter Description Dimension Length Mast Stowed Position Length Mast Deployed PositionGeneral information Metal Halide LampsComponents Major Components Control Panel SideCircuit Breakers Turn the lamps on and off Major Components Front/RearRead all safety instructions at the beginning of manual InspectionBefore starting Check all fastening nuts and bolts for tightnessContact between the two connectors Female and Male ConnectorOperation Starting the EngineMast operation Outriggers and Support StandsRaising the Mast Raising the Mast Lowering the MastStowing the Mast to Horizontal Position Rotating the MastVoltage Regulator Knob and AC Voltmeter Maintenance Generator/ENGINE MaintenanceCheck Cable Wear Servicing the Mast Raise/Lower Cable SystemServicing the Mast Extension Cable System Lower the mast to the horizontal resting positionMaintenance Trailers Manually Adjusting the BrakesTrailer Brakes Hydraulic BrakesAdjustable Channel Hydraulic Brake TroubleshootingWheel Hub Adjustment Leaf SuspensionSafety guidelines Trailers COMMOn Causes for LOss of TRaILeRTRaILeR TOWIng guIDeLInes DRIvIng COnDITIOns COupLIng to THe TOW veHICLeInOpeRaBLe BRaKes, LIgHTs or MIRRORs TRaILeR TOWIng TIpsTRaILeR vIn Tag ELeCTRICaL COnneCTOR TOW veHICLeSuspensIOn sYsTeM BRaKe COnTROLLeRSaFeTY CHaIns TRaILeR LIgHTIng anD BRaKIng COnneCTORBReaKaWaY sYsTeM JaCKsTanDLock washer and hitch frame Trailer tongue. Wood or concrete blocks may also be usedCoupling the Trailer to the Tow vehicle Ball Coupler Attaching safety Chain Breakaway Brake systemBreakaway Cable surge Brake system Connecting Trailer Lights Uncoupling the Ball HitchPInTLe Hitch COupLeR Pintle Coupler and pintle HookFigure H. Attaching Safety Chain Pintle Hitch Coupling Trailer to Tow vehicle pintle CouplerTIRe saFeTY Unsafe Tires, Lug nuts or Wheels Determining Load Limit of TrailerBe sure lug nuts are tight before each tow Step Determining Load Limit of Tow vehicle stepTIRe FunDaMenTaLs Table a. speed RatingLetter Rating Speed Rating Tire safety Tips Tire RepairReplacing Worn or Damaged Tires Uniform Tire Quality grading standards uTQgsTable B. Tire Wear Troubleshooting Wheel RimsWheels, Bearings and Lug nuts Lug nut Torque RequirementsLights and signals Table C. Tire Torque RequirementsLamp Troubleshooting Symptom Possible Cause SolutionWhen switch is first Checking voltage and ballast Turned on Replacement minimizes color differencesClean fixture Lamp starts slowly ARC does not strike Defective Lamp?Lamp Troubleshooting Guide ConnectionsStarting Ballast RemovalPage Reference MLT20DCA 4-lamp wiring diagram on succeeding pages Electronic Component Locator mlt20dcaElectronic Component Locator mlt20dca6 Wiring Diagram mlt20dca TB1 N Wiring Diagram mlt20dca6 TB1 Z HERE’S HOW to GET Help

MLT20DCA6, MLT20DCA specifications

The Multi Tech Equipment MLT20DCA and MLT20DCA6 stand out in the realm of compact construction machinery, renowned for their versatility and efficiency. These models are designed to meet the demanding needs of various industries, including construction, landscaping, and agricultural operations.

One of the key features of the MLT20DCA series is its powerful and reliable engine. Equipped with a robust diesel engine, these machines deliver optimal performance and fuel efficiency, ensuring that operators can complete tasks quickly and economically. This powertrain is complemented by a highly responsive hydraulic system, which allows for seamless operation of attachments such as buckets, forks, and augers.

The ergonomic design of the MLT20DCA and MLT20DCA6 enhances operator comfort and productivity. The spacious cabin is equipped with intuitive controls and offers excellent visibility, making it easier for operators to navigate tight spaces and perform intricate tasks. The low center of gravity provides stability and balance, which is essential when working on uneven terrain.

Both models feature a compact design, making them ideal for urban environments and confined job sites. Their versatile lifting capabilities allow them to handle a wide range of materials, from heavy loads to delicate items, making them invaluable in various applications. The MLT20DCA6 variant offers additional lifting height and capacity, catering to heavier-duty operations.

Safety is a paramount concern in equipment design, and the MLT20DCA series does not disappoint. These machines are equipped with multiple safety features, including reinforced ROPS (Roll Over Protective Structure), safety interlocks, and improved braking systems. This ensures the well-being of operators and those working in proximity.

In terms of technology, Multi Tech has integrated advanced control systems into both models. This includes automated diagnostics that monitor machine performance and alert users to potential issues before they become significant problems. Connectivity features also allow for remote monitoring, enhancing fleet management capabilities.

In summary, the Multi Tech Equipment MLT20DCA and MLT20DCA6 represent a formidable option for professionals seeking reliable and efficient compact machinery. With their powerhouse engines, user-friendly design, and advanced safety and technology features, these machines are poised to enhance productivity across various applications, ensuring a strong return on investment for operators.
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