Multiquip DCA800SSK2 manual Electric Brakes, Brake Drums or discs, Linings, and Hoses, Air Leaks

Page 43

TRAILER MAINTENANCE

ELECTRIC BRAKES

Electrically actuated brakes (Figure 66) are similar tohydraulic brakes. the basic difference is that hydraulic brakes are actuated by an electromagnet. listed below are some of the advantages that electric brakes have over hydraulic brakes:

Brake system can be manually adjusted to provide the corrected braking capability for varying road and load conditions.

Brake system can be modulated to provide more or less braking force, thus easing the brake load on the towing vehicle.

Brake system has very little lag time between the time the vehicle’s brakes are actuated and the trailer’s brakes are actuated.

Brake system can provide an independent emergency brake system.

Remember in order to properly synchronize the tow vehicle’s braking to the trailer’s braking, can only be accomplished by road testing. Brake lockup, grabbiness or harshness is due to lack of synchronization between the tow vehicle and the trailer being towed or underadjusted brakes.

Before any brake synchronizations adjustments can be made, the trailer brakes should be burnishedin by applying the brakes 2030 times with approximately a 20 m.p.h. decrease in speed, e.g. 40 m.p.h. to 20 m.p.h. Allow ample time for brakes to cool between application. This allows the brake shoes to slightly be seated into the brake drum surface.

Figure 66. displays the major electric brake components that will require inspection and maintenance. Please inspect these components as required. See Table 13. Electric Brake Troubleshooting.

Magnets For All Electric Brakes

To make certain an electricallyoperated braking system will function properly, you must have your dealer inspect the magnets at least once a year, or each 12,000 miles. See the brake manual for wear and current inspection instructions.

Brake Controller

The electric brake controller is part of the tow vehicle and is essential in the operation of the electric brakes on the

trailer. The brake controller is not the same as the safety breakaway brake system that may be equipped on the trailer.

.

Figure 66. Hydraulic Brake Components

Brake Drums (or discs), Linings, and Hoses

Brake drums or discs must not have cracks longer than one half the width of the friction area. Linings must not be loose, soaked with oil or grease or be dangerously thin. Mechanical parts must be in place, not broken or missing. Check that all air hoses connected to the brake chambers are not worn or cut due to rubbing.

Air Leaks

Always check for brake air leaks before towing the trailer. NEVER tow the trailer with an brake air leak problem.The possibility exists of brake failure.

Table 13. Electric Brake Troubleshooting

Symptom

Possible Cause

Solution

 

Any open circuits or broken wires?

Find and correct.

 

Any short circuits?

Find and correct.

No Brakes or Intermittent Brakes

Faulty controller?

Test and correct.

 

Any loose connections?

Find and repair.

 

Ground wire secure?

Find and secure.

 

Grease or oil on magnets or

Clean or replace.

 

linings?

 

 

Weak Brakes or Brakes Pull to

Connections corroded?

Clean and correct cause of

One Side

corrosion.

 

 

Brake drums scored or grooved?

Machine or replace.

 

Brakes synchronized?

Correct.

 

Brake components loose, bent or

Replace components.

Locking Brakes

broken?

 

 

Brake drums outofround?

Replace.

Noisy Brakes

System lubricated?

Lubricate.

Brake components correct?

Replace and correct.

 

Dragging Brakes

Bearings of the wheel adjusted?

Adjust.

DCA800SSK2 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (09/03/09) — PAGE 43

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Contents This Manual Must Accompany the Equipment AT ALL Times Model DCA800SSK2Proposition 65 Warning Administrator Reporting Safety DefectsNhtsa DCA800SSK2 Table of ContentsOrdering parts has never been easier Parts Ordering ProceduresSafety Messages Safety InformationGenerator Safety General Safety Always know the location of the nearest Before servicing equipment Engine SafetyFrom fuel vapors or if fuel is spilled on a hot engine Fuel SafetyTowing Safety  Never use fuel as a cleaning agentDevice. All installations should be Electrical SafetyGrounding Safety Power Cord/Cable SafetyEnvironmental Safety Battery SafetyKomatsu SAA6D170E3 SpecificationsDimensions DimensionsTypical Generator Grounding Application InstallationGenerator Grounding Outdoor InstallationIndoor Installation MountingGeneral Information Item no Major ComponentsPilot Lamp Indicates the system is running Generator Control PanelOwing from the U,V, and W Output Terminal Lugs to the load Engine Operating Panel Air Filter Alarm When the air fi lterPage Output Terminal Familiarization Output Terminal Panel FamiliarizationTerminal legs O and Ground are considered bonded grounds Over Current Relay Connecting LoadsThree Phase Load Single Phase LoadLoad Application Generator Amperage Generator OutputsGenerator Output Voltages Voltage ChangeOver BoardAC Ammeter Gauge Reading HOW to Read the AC Ammeter and AC Voltage GaugesGenerator OUTPUTS/GAUGE Reading AC Voltmeter Gauge Reading1Ø-240V Uvwo Terminal Output Voltages Output Terminal Panel ConnectionsUvwo Terminal Output Voltages 3Ø-240V Uvwo Terminal Output Voltages1Ø-480V Uvwo Terminal Output Voltages 3Ø-480V Uvwo Terminal Output Voltages1Ø-277V Uvwo Terminal Output Voltages Fuel Check INSPECTION/SETUPCircuit Breakers Lubrication OILOnly use #2 diesel fuel when refueling Refueling ProcedureOperation in Freezing Weather Cleaning the RadiatorAIR Cleaner FAN Belt Tension Coolant ANTIFREEZE/SUMMER COOLANT/ WaterAlternator BatteryBattery Cable Installation WiringIs lit on Generator Startup Procedure ManualBefore Starting Engine’s exhaust contains harmful emissionsStarting Manual Place the engine speed switch in the LOW position FigureAmmeter No Load Verify that the main circuit breaker on lamp is lit onPlace the engine speed switch in the High position Generator Startup Procedure Auto ModeStarting Auto Mode Before connecting this generator to anyNormal Shutdown Procedure Generator Shutdown ProceduresEmergency Shutdown Procedure General Inspection AIR Cleaner MaintenanceAir Cleaner with Dust Indicator Fuel Tank Inspection Fuel AdditionAIR Removal Flushing OUT Radiator and Replacing Coolant Radiator CleaningCheck OIL Level Replacing Oil FilterBattery Charger and Jacket Water Heater Power Connections Trailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Brake Drums or discs, Linings, and Hoses Electric BrakesAir Leaks Tire Wear/Inflation TIRES/WHEELS/LUG NutsSuspension Never use an pneumatic air gun to tighten wheel lug nuts Lug Nut Torque RequirementsTrailer/Towing Vehicle Wiring Diagram Trailer Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Generator Wiring Diagram Main BreakerController Wiring Diagram Engine Wiring DiagramTroubleshooting Generator Adjust governor controller Troubleshooting Engine ControllerClean/repair radiator grill Adjust governor actuatorKomatsu Engine Controller Page Explanation of Code in Remarks Column Sample Parts ListTo 3 units Suggested Spare PartsGenerator Assy Insulator Washer Balancing Weight KITField Assy RESISTOR, 80W 50K ΩGenerator Assy Stator Cover Bearing CoverPacking Cover BracketControl Panel Assy Control Panel Circuit Breaker on SwitchSwitch Panel Light SwitchControl BOX Assy Machine Screw Control BOXAmmeter Current Transformer Electric Parts SET PanelControl BOX Assy Snap PIN Change TerminalTerminal Plate Change PlateEngine Assy Hose ENGINE, Komatsu SAA170E3Engine Foot Radiator BracketEngine Assy Drain Joint Hose BandHose Joint ValveRadiator ASSY. S/N 316346 and Above Tube ConnectorCushion ClampAlternator ASSY. S/N 311209 and Above BELT, Alternator PULLEY, NON HardeningALTERNATOR, Assy Theromostat ASSY. S/N 316346 and Above SEAL, Thermostat HOUSING, ThermostatPlate ThermostatWater Pump Assy 311819 and Above 6240611302315602 and Above 6162631515Starter ASSY. S/N 316346 and Above 0164331645 60081335126221816810 0101061645Engine Operating Panel Assy Alarm Lamp Battery SwitchBattery Switch Bracket Engine Speed SwitchOutput Terminal Assy Output Terminal Cover Output TerminalOutput Terminal Bracket TerminalOutput Terminal Assy Receptacle Rubber CushionBattery Assy Battery Bolt BatteryBattery Sheet Battery BandMuffler Assy Exhaust Pipe MufflerOutlet Pipe Fuel Tank Assy Fuel Gauge Hose Fuel TankFuel Tank CAP Fuel FilterEnclosure ASSY.#1 Enclosure ASSY. #1 Enclosure ASSY. #1 Filler Cover Filler BracketCenter Frame Roof PanelEnclosure ASSY. #2 Duct Cover Rear FrameLouver Panel Rear Frame CoverEnclosure ASSY. #2 Guide PanelRoof Panel Cover Enclosure ASSY. #3 Duct Splasher PanelSide Panel Side DoorEnclosure ASSY. #3 22A C5494405904 C545430060421A C5494405904 C5454300904Rubber Seals Assy 0228901690 02289017500228901780 0228901800Nameplate and Decals Assy Output Terminal Group Control Panel & BOX GroupEngine & Radiator Group Decal Fuel Priming Engine Operating Panel GroupNameplate and Decals Assy Bonnet Group Battery GroupMuffler Group Fuel Tank GroupNameplate and Decals Assy C1552000403 Freight Policy Terms and Conditions of Sale PartsPage HERE’S HOW to GET Help

DCA800SSK2 specifications

The Multiquip DCA800SSK2 is a robust and versatile portable diesel generator, designed to meet the demands of a wide range of applications. With a powerful 800 kW (kilowatt) capacity, it is particularly suited for use in construction sites, events, and emergency backup power situations. This generator combines reliability, durability, and ease of use, making it a popular choice among contractors and rental companies.

One of the main features of the DCA800SSK2 is its advanced sound attenuation technology. This ensures that the generator operates quietly, minimizing noise pollution while maximizing performance. The enclosure is designed to reduce sound levels without compromising on the cooling requirements, which extends the overall lifespan of the generator. Users can expect noise levels well within acceptable limits for urban and residential areas.

The DCA800SSK2 is equipped with a state-of-the-art digital controller that offers enhanced monitoring and diagnostic capabilities. This intelligent control system enables users to track key performance metrics, such as voltage, frequency, and operating hours, all from a user-friendly interface. Furthermore, it includes automatic shutdown features for low oil pressure, high temperature, and overcurrent situations, providing an added layer of safety and preventing potential damage.

Fuel efficiency is another standout characteristic of the Multiquip DCA800SSK2. With a large fuel tank, it can operate for extended periods without frequent refueling, making it ideal for long-term use in remote areas where access to fuel may be limited. The generator's engine is engineered to provide optimal fuel consumption, ensuring that operators can maximize their running time while minimizing operational costs.

The DCA800SSK2 includes multiple outlets for electricity distribution, allowing users to connect various tools and equipment simultaneously. This versatility makes it suitable for a wide range of applications, from powering heavy machinery on construction sites to providing backup power for critical infrastructure.

Overall, the Multiquip DCA800SSK2 stands out in the market for its combination of power, efficiency, and advanced features. With its robust build quality, innovative technologies, and user-centric design, it is an excellent choice for anyone in need of a reliable portable generator. Whether for professional use or emergency situations, the DCA800SSK2 delivers outstanding performance and peace of mind.
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