Multiquip DCA-45US1 DCA-45USI -TRAILER Maintenance, Tires/Wheels/Lug Nuts, TireWear/Inflation

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DCA-45USI —TRAILER MAINTENANCE

Tires/Wheels/Lug Nuts

Tires and wheels are a very important and critical components of the trailer. When specifying or replacing the trailer wheels it is important the wheels, tires, and axle are properly matched.

CAUTION:

DO NOT attempt to repair or modify a wheel. DO NOT install in

inner tube to correct a leak through the rim. If the rim is cracked, the air pressure in the inner tube may cause pieces of the rim to explode (break off) with great force and cause serious eye or bodily injury.

TireWear/Inflation

Tire inflation pressure is the most important factor in tire life. Pressure should be checked cold before operation DO NOT bleed air from tires when they are hot!. Check inflation pressure weekly during use to insure the maximum tire life and tread wear.

Table 16 (Tire Wear Troubleshooting) will help pinpoint the causes and solutions of tire wear problems.

TABLE 16 TIRE WEARTROUBLESHOOTING

 

 

 

WEAR PATTERN

CAUSE

SOLUTION

 

 

 

 

 

 

 

 

Over Inflation.

Adjust pressure to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Center Wear

particular load per tire

 

 

 

 

 

 

 

 

 

manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Adjust pressure to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Edge Wear

Under Inflation.

particular load per tire

 

 

 

 

 

 

 

 

 

manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Side Wear

Loss of camber

Make sure load does

 

 

 

 

 

 

 

 

 

 

 

 

 

 

not exceed axle rating.

 

 

 

 

 

 

 

or overloading.

 

 

 

 

 

 

 

 

Align wheels.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Toe Wear

Incorrect toe-in.

Align wheels.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cupping

Out-of-balance.

Check bearing adjustment

 

 

 

 

 

 

 

and balance tires.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flat Spots

Wheel lockup &

Avoid sudden stops when

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tire skidding.

possible and adjust brakes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Suspension

The leaf suspension springs and associated components (Figure 57) should be visually inspected every 6,000 miles for signs of excessive wear, elongation of bolt holes, and loosening of fasteners. Replace all damaged parts (suspension) immediately. Torqued suspension components as detailed in Table 17.

Figure 57. Major Suspension Components

Table 17. Suspension Torque Requirements

Item

Torque (Ft.-Lbs.)

 

 

3/8" U-BOLT

MIN-30 MAX-35

 

 

7/16" U-BOLT

MIN-45 MAX-60

 

 

1/2" U-BOLT

MIN-45 MAX-60

 

 

SHACKLE BOLT

SNUG FIT ONLY. PARTS MUST ROTATE FREELY.

SPRING EYE BOLT

LOCKING NUTS OR COTTER PINS ARE PROVIDED

 

TO RETAIN NUT-BOLT ASSEMBLY.

 

 

SHOULDER TYPE

MIN-30 MAX-50

SHACKLE BOLT

 

 

 

CAUTION:

ALWAYS wear safety glasses when removing or installing force fitted parts. Failure to comply may result in serious injury.

DCA-45USI — OPERATION AND PARTS MANUAL (STD) — REV. #2 (04/22/05) — PAGE 43

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Contents DCA-45USI 2 DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 Wilmington Ave Carson, CA Heres HOW to GET HelpTable of Contents When ordering parts Please supply the following information Parts Ordering ProceduresDCA-45USI Specifications Dimensions DCA-45USI Dimensions Side and FrontFor Your Safety and the Safety of Others DCA-45USI Safety Message Alert SymbolsDCA-45USI Safety Message Alert Symbols DCA-45USI Rules for Safe Operation General SafetyRadiator DCA-45USI Rules for Safe OperationTransporting BatteryEmergencies Towing Safety PrecautionsTypical Generator Grounding Application DCA-45USI InstallationMounting Outdoor InstallationDCA-45USI -TOWING Safety Precautions Explanation of Chart DCA-45USI -TRAILER SpecificationsDCA-45USI Generator Decals DCA-45USI Generator Decals Three auxilliary circuit breakers, @50 amps DCA-45USI General InformationDCA-45USI Major Components Generator Control Panel DCA-45USI Generator Control PanelDCA-45USI Engine Operating Panel Water Temperature Lamp Indicates that the waterFuel FilterWater Level Alarm Lamp This lamp turns Fuel Leak Detected Alarm This indicates that liquidOutput Terminal Panel DCA-45USI Output Terminal Panel FamiliarizationOutput Terminal Familiarization 120VAC Gfci Receptacles DCA-45USI Output Terminal Panel FamiliarizationOver Current Relay Connecting LoadsBlower Fan If 3Ø load kVA is not given on Single Phase LoadThree Phase Load DCA-45USI Load ApplicationGenerator OutputVoltages Voltage Selector SwitchVoltage Selector Switch Locking Button Generator AmperageReading Voltage How to Read the OutputTerminal GaugesDCA-45USI Gauge Reading Reading Amperage3Ø 208V/1Ø120V Output Terminal Lug Voltages DCA-45USI Output Terminal Panel ConnectionsUvwo Terminal Output Voltages 3Ø 240/139 Output Terminal Lug Voltages1Ø 240V/120V Output Terminal Lug Voltages 3Ø 480/277 Output Terminal Lug VoltagesFuel Check DCA-45USI PRE-SETUPCircuit Breakers Lubrication OilALWAYS! place trailer on firm level ground before refueling Refueling ProcedureWhen refueling Inhaling fumesOperation Freezing Weather Cleaning the RadiatorAir Cleaner Fan Belt Tension Must be less than 50%Piping and Hose Connection Battery Cable InstallationWiring AlternatorBefore Starting DCA-45USI Generator START-UP ProcedureDCA-45USI Generator START-UP Procedure 38 DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 Emergency Shut-down Procedure Normal Shut-down ProcedureAutomatic Shut-down System DCA-45USI Maintenance Replacing Fuel Filter Air RemovalCheck Oil Level Replacing Oil FilterHydraulic Surge Brakes DCA-45USI -TRAILER Brakes MaintenanceBrake Adjustment BrakesSuspension DCA-45USI -TRAILER MaintenanceTires/Wheels/Lug Nuts TireWear/InflationStart all wheel lug nuts by hand Lug Nut Torque RequirementsTrailer/Towing Vehicle Wiring Diagram DCA-45USI -TRAILERWIRING DiagramDCA-45USI Enginewiring Diagram DCA-45USI Enginewiring Diagram Generator Wiring Diagram DCA-45USI Generatorwiring DiagramDCA-45USI -TROUBLESHOOTING Generator Items Found In the Items Number Column Explanation of Code in Remarks ColumnQty Description DCA-45USI Suggested Spare PartsDCA-45USI Generator Assy 0042510000 B31101002028051070003 0010310035DCA-45USI Control BOX Assy 0021005080 M12140001020601808825 KAF36110103956 DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 DCA-45USI Control BOX Assy DCA-45USI Engine and Radiator Assy 0030010000 M1924200014897049-7081 0605000048Engine & Radiator Assy 0602021070 06033002850605511395 0603306395DCA-45USI Outputterminal Assy DCA-45USI Outputterminal Assy DCA-45USI Battery Assy 0602220920 0602220187M9310500014 M9103000304DCA-45USI Muffler Assy 0602320101 M13311001020017112030 M1334000003DCA-45USI Fueltank Assy 0605516090 M13640001020605505070 0605501072DCA-45USI Enclosure Assy DCA-45USI Enclosure Assy 72 DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 27B 0041216000 26A 004001600026B 0041216000 27A 004001600074 DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 M1454000503 49A M1494400404M1454000103 50A M1494400104DCA-45USI Rubber Seals Assy 0229400900 02292009500228901385 0228900900DCA-45USI Nameplate and Decals Assy M15000020 M1511400002M1511400102 M1550000204Effective October 1, 2002 Terms and Conditions of Sale Parts DCA-45USI Operation and Parts Manual STD REV. #2 04/22/05 Your Local Dealer is
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