Multiquip DCA125USI Brake Adjustment, Hydraulic Surge Brakes, Through 8 and as listed below

Page 42

TRAILER MAINTENANCE

BRAKES

Trailer brakes should be inspected the first 200 miles of operation.This will allow the brake shoes and drums to seat properly. After the fi rst 200 mile interval, inspect the brakes every 3,000 miles. If driving over rough terrain, inspect the brakes more frequently.

Figure 61 displays the major hydraulic surge brake components that will require inspection and maintenance. Please inspect these components as required using steps

1 through 8 and Table 15 as listed below:

Brake Adjustment

1.Place the trailer on jack stands. Make sure the jack stands are placed on secure level ground.

2.Check the wheel and drum for free rotation.

3.Remove the adjusting hole cover from the adjusting slot at the bottom brake backing plate.

4.With a screwdriver or standard adjusting tool, rotate the star wheel of the adjuster assembly to expand the brake shoes.

5.Adjust the brake shoes outward until the pressure of the lining against the wheel drum makes the wheel diffi cult to turn.

6.Adjust, rotate the star wheel in the opposite direction until the wheel rotates freely with slight lining drag.

7.Replace the adjusting hole cover and lower the trailer to the ground.

8.Repeat steps 1 through 7 on the remaining brakes.

Hydraulic Surge Brakes

Hydraulic surge brakes (Figure 61) should not require any special attention with the exception of routine maintenance such as shoe and lining replacement. Brake lines should be periodically checked for cracks, kinks, or blockage.

Figure 61. Hydraulic Brake Components

Actuator

Hydraulic surge braking requires the installation of an actuator at the tongue of the trailer. Remember the surge or push of the trailer toward the tow vehicle automatically synchronizes the trailer brakes with the tow vehicle brakes. As the trailer pushes against the tow vehicle the actuator telescopes together and applies force to the master cylinder, supplying hydraulic pressure to the trailer brakes.

Periodically check and test the surge “actuator” to make sure that it is functioning correctly. Never use an undersize actuator.

Table 15. Hydraulic Brake Troubleshooting

 

Symptom

Possible Cause

Solution

 

 

No Brakes

Brake line broken or kinked?

Repair or replace.

 

 

 

Brake lining glazed?

Reburnish or replace.

 

 

Weak Brakes or Brakes Pull to

Trailer overloaded?

Correct weight.

 

 

 

 

 

 

Brake drums scored or grooved?

Machine or replace.

 

 

One Side

 

 

 

 

 

 

Tire pressure correct?

Infl ate all tires equally.

 

 

 

 

 

 

 

 

 

 

 

Tires unmatched on the same axle?

Match tires.

 

 

 

 

 

 

 

 

Brake components loose, bent or

Replace components.

 

 

Locking Brakes

broken?

 

 

 

 

 

 

Brake drums out-of-round?

Replace.

 

 

Noisy Brakes

System lubricated?

Lubricate.

 

 

Brake components correct?

Replace and correct.

 

 

 

 

 

 

Brake lining thickness incorrect or

Install new shoes and

 

 

Dragging Brakes

not adjusted correctly?

linings.

 

 

Enough brake fl uid or correct fl uid?

Replace rubber parts

 

 

 

 

 

 

fi ll with dot 4 fl uid.

 

 

 

 

 

 

 

 

 

 

PAGE 42 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)

Image 42
Contents Model DCA125USI This Manual Must Accompany the Equipment AT ALL TimesProposition 65 Warning Reporting Safety Defects AdministratorNhtsa Table of Contents DCA125USI 60 Hz GeneratorParts Ordering Procedures Ordering parts has never been easierSafety Information Safety MessagesGeneral Safety Generator Safety Always know the location of the nearest Engine Safety Before servicing equipment Never use fuel as a cleaning agent Fuel SafetyTowing Safety From fuel vapors or if fuel is spilled on a hot engineElectrical Safety Device. All installations should be Never use gas piping as an electrical ground Battery Safety Environmental SafetySpecifications DCA125USIDimensions DimensionsInstallation Typical Generator Grounding ApplicationMounting Outdoor InstallationIndoor Installation Generator GroundingGeneral Information Major Components Generator Control Panel Owing from the U,V, and W Output Terminal Lugs to the loadPage Engine Operating Panel Engine Operating PanelFuel Gauge Indicates amount of diesel fuel available ModuleOutput Terminal Panel Familiarization Output Terminal FamiliarizationTerminal legs O and Ground are considered bonded grounds Removing the Plastic Face Plate Hard Wire Hookup Panel VAC Gfci ReceptaclesTwist Lock Dual Voltage 120/240 VAC Receptacles Connecting Loads Over Current RelaySingle Phase Load Three Phase LoadLoad Application Generator Outputs Generator Output VoltagesHOW to Read the AC Ammeter and AC Voltage Gauges Generator OUTPUTS/GAUGE ReadingAC Voltmeter Gauge Reading 3Ø-240/139 Uvwo Terminal Output Voltages Output Terminal Panel ConnectionsUvwo Terminal Output Voltages 3Ø-208V/1Ø-120V Uvwo Terminal Output Voltages3Ø-480/277V Uvwo Terminal Output Voltages 1Ø-240/120V Uvwo Terminal Output VoltagesLubrication OIL INSPECTION/SETUPCircuit Breakers Fuel CheckRefueling Procedure Only use #2 diesel fuel when refuelingCoolant ANTIFREEZE/SUMMER COOLANT/ Water Cleaning the RadiatorAIR Cleaner FAN Belt Tension Operation in Freezing WeatherWiring BatteryBattery Cable Installation AlternatorStarting Generator START-UP ProcedureBefore Starting Starting ManualPre-Heat Lamp Emergency Shutdown Procedure Generator SHUT-DOWN ProceduresNormal Shutdown Procedure To shutdown the generator, use the following procedureMaintenance General Inspection AIR CleanerAir Cleaner with Dust Indicator Fuel Addition Fuel Tank InspectionAIR Removal Replacing Oil Filter Radiator CleaningCheck OIL Level Flushing OUT Radiator and Replacing CoolantBattery Charger & Jacket Water Heater Power Connections Trailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Hydraulic Surge Brakes Brake AdjustmentBrakes Through 8 and as listed belowTIRES/WHEELS/LUG Nuts Tire Wear/Infl ationSuspension Lug Nut Torque Requirements Start all wheel lug nuts by handNever use an pneumatic air gun to tighten wheel lug nuts Trailer Wiring Diagram Trailer/Towing Vehicle Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Engine Wiring DiagramController Wiring Diagram Controller Wiring DiagramTroubleshooting Generator Troubleshooting Diagnostic Lamp Method of OperationPage Sample Parts List Explanation of Code in Remarks ColumnXxxxx only Not Used on Suggested Spare Parts To 3 unitsGenerator Assy Field Assy Part Name QTY. RemarksIncludes Items W/# FANControl BOX Assy Selector Switch Push Button SwitchDiagonastic Switch Switch BracketControl BOX Assy Water Temperature Gauge Switch CoverAlarm Lamp SWITCH, Panel LightEngine and Radiator Assy Bracket AIR Cleaner AIR CleanerINDICATOR, AIR Cleaner BAND, AIR CleanerEngine and Radiator Assy Blow by Hose ConnectorAIR Duct Hose Hose JointEngine and Radiator Assy FAN Shroud BRACKET, Inter CoolerCooler Hose BRACKET, FAN ShroudOutput Terminal Assy Terminal Cover Terminal BoardOutput Terminal Bolt Output WindowBattery Assy Battery Band BatteryBattery Sheet Battery Bolt SETMuffler Assy Muffler GasketBolt SET Fuel Tank Assy Fuel Sender Unit Fuel TankFuel Tank CAP Connect HoseEnclosure ASSY. Part Enclosure ASSY. PART1 Enclosure ASSY. Part Over COVER, Front Frame Back PlateDuct COVER, Radiator CAPEnclosure ASSY. Part Rear Frame Enclosure ASSY. Part Seal Rubber WasherManual PAK Rubber Seals Assy Part Name Nameplate and Decals Assy Engine & Radiator Group Battery GroupControl BOX Group Output Terminal GroupNameplate and Decals Assy Fuel Tank Group Enclosure GroupTerms and Conditions of Sale Parts Freight PolicyPage HERE’S HOW to GET Help
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DCA125USI specifications

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