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PARTS AND OPERATION MANUAL OPERATION AND PARTS MANUAL ® MODEL DCA125USJ 60 Hz GENERATOR (JOHN DEERE 6068TF 275 DIESEL ENGINE) PARTS LIST NO. M3870400004 Revision #2 (01/27/11) To find the latest revision of this publication, visit our website at: www.multiquip.com...
TABLE OF CONTENTS MQ POWER DCA12USJ MQ POWER DCA12USJ MQ POWER DCA12USJ MQ POWER DCA12USJ MQ POWER DCA12USJ COMPONENT DRA COMPONENT DRAWINGS COMPONENT DRA WINGS WINGS WINGS COMPONENT DRA COMPONENT DRA WINGS AC GENERA AC GENERA AC GENERATOR AC GENERA AC GENERA Generator Assembly ..........
, 2006 Order via Internet (Dealers Only) Best Deal! If you have an MQ Account, to obtain a Username Order parts on-line using Multiquip’s SmartEquip website! and Password, E-mail us at: parts@multiquip. ■ View Parts Diagrams com. ■ Order Parts To obtain an MQ Account, contact your ■...
DCA-125USJ — SAFETY INFORMATION Do not operate or service the equipment before reading the Potential hazards associated with the operation of this entire manual. Safety precautions should be followed at all equipment will be referenced with hazard symbols which times when operating this equipment. Failure to read and may appear throughout this manual in conjunction with understand the safety messages and operating instructions safety messages.
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DCA-125USJ — SAFETY INFORMATION GENERAL SAFETY NEVER use accessories or attachments that are not recommended by Multiquip for this equipment. Damage CAUTION to the equipment and/or injury to user may result. NEVER operate this equipment without proper protective ALWAYS know the location of the nearest clothing, shatterproof glasses, respiratory protection, fire extinguisher.
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DCA-125USJ — SAFETY INFORMATION ENGINE SAFETY NOTICE DANGER NEVER run engine without an air filter or with a dirty air filter. Severe engine damage may occur. Service air filter The engine fuel exhaust gases contain poisonous carbon frequently to prevent engine malfunction. monoxide.
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DCA-125USJ — SAFETY INFORMATION FUEL SAFETY Make sure the hitch and coupling of the towing vehicle are rated equal to, or greater than the trailer “gross DANGER vehicle weight rating.” DO NOT start the engine near spilled fuel or combustible ALWAYS inspect the hitch and coupling for wear.
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DCA-125USJ — SAFETY INFORMATION ELECTRICAL SAFETY Make sure power cables are securely connected to the generator’s output receptacles. Incorrect connections DANGER may cause electrical shock and damage to the generator. DO NOT touch output terminals during operation. Contact with output terminals NOTICE during operation can cause electrocution, ALWAYS make certain that proper power or extension...
DCA-125USJ — SAFETY INFORMATION BATTERY SAFETY ENVIRONMENTAL SAFETY DANGER NOTICE DO NOT drop the battery. There is a possibility that the Dispose of hazardous waste properly. battery will explode. Examples of potentially hazardous waste are used motor oil, fuel and fuel filters. DO NOT expose the battery to open flames, sparks, cigarettes, etc.
DCA-125USJ — GENERATOR DECALS The DCA-125USJ generator is equipped with a number of safety decals (Figures 2 and 3). These decals are provided for operator safety and maintenance information. The illustration below and on the preceding page show the decals as they appear on the machine.
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DCA-125USJ — INSTALLATION Outdoor Installation Generator Grounding Install the generator in a area that is free of debris, To guard against electrical shock and possible damage to bystanders, and overhead obstructions. Make sure the the equipment, it is important to provide a good EARTH generator is on secure level ground so that it cannot slide or ground.
DCA-125USJ — GENERAL INFORMATION DCA-125USJ Series Familiarization Open Delta Excitation System Generator The DCA-125USJ generator is equipped with the state of the art " Open-Delta " excitation system. The open delta The MQ Power Model DCA-125USJ is a 100 kW generator system consist of an electrically independent winding wound (Figure 5) that is designed as a high quality portable (requires among stationary windings of the AC output section.
DCA-125USJ — GENERATOR CONTROL PANEL Figure 6. Generator Control Panel Located behind the generator control panel is the Generator The definitions below describe the controls and functions of Control Box . This box contains some of the necessary the DCA-125USJ Generator Control Panel (Figure 6). electronic components required to make the generator Main Circuit Breaker –...
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DCA-125USJ — ENGINE OPERATING PANEL The definitions below describe the controls and functions of During cranking cycle , The MPEC will attempt to crank the the DCA-125USJ Engine Operating Panel (Figure 7). engine for 10 seconds before disengaging. If the engine does not engage (start) by the third attempt, the engine will be Panel Light –...
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DCA-125USJ — OUTPUT TERMINAL PANEL FAMILIARIZATION Output Terminal Panel Output Terminal Familiarization The Output Terminal Panel (Figure 8) shown below is located The “ Output Terminal Panel ” (Figure 8) is provided with the on the right-hand side (left from control panel) of the generator. following: Lift up on the cover to gain access to receptacles and terminal ...
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DCA-125USJ — OUTPUT TERMINAL PANEL FAMILIARIZATION 120 VAC GFCI Receptacles Each auxilliary receptacle is protected by a 50 amp circuit breaker. These breakers are located directly above the GFCI There are two 120 VAC, 20 amp GFCI (Duplex Nema 5-20R) receptacles.
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DCA-125USJ — OUTPUT TERMINAL PANEL FAMILIARIZATION Connecting Loads Blower Fan Loads can be connected to the generator by the Ouput Terminal This unit has an intake fan located at the rear of the machine Lugs or the convienience receptacles. (See Figure 13). Make to draw outside air into the cabinet to cool the engine.
DCA-125USJ — LOAD APPLICATION Single Phase Load Three Phase Load Always be sure to check the nameplate on the generator When calculating the power requirements for 3-phase power and equipment to insure the wattage, amperage, frequency, use the following equation: and voltage requirements are satisfactorily supplied by the generator for operating the equipment.
DCA-125USJ — GENERATOR OUTPUTS Voltage Selector Switch Generator Amperage The voltage selector switch (Figure 16) is located above Table 7 describes the generator’s current output capability the output terminal panel’s Hard Wire Hook-up Panel . It for both 1Ø-phase and 3Ø phase applications. has been provided for ease of voltage selection.
DCA-125USJ — GAUGE READING How to Read the Output Terminal Gauges. Reading Amperage The gauges and selector switches on the control panel To determine the amperage at a terminal lug, set the DO NOT effect the generator output. They are provided to AC Ammeter Change-Over Switch to the appropriate setting (Figure 20) to activate the AC Ammeter Gauge help observe how much power is being supplied at the...
DCA-125USJ — OUTPUT TERMINAL PANEL CONNECTIONS UVWO Terminal Output Voltages 3Ø 208V/1Ø120V Output Terminal Lug Voltages Various output voltages can be obtained using the Output 1. Place the voltage selector switch in the 3Ø 240/139 Terminal Lugs .. The voltages at the terminals are depen- position as shown in Figure 25.
DCA-125USJ — OUTPUT TERMINAL PANEL CONNECTIONS 3Ø 480/277 Output Terminal Lug Voltages 1Ø 240V/120V Output Terminal Lug Voltages 1. Place the voltage selector switch in the 3Ø 480/277 1. Place the voltage selector switch in the 1Ø 240/120 position as shown in Figure 27. position as shown in Figure 29.
DCA-125USJ — PRE-SETUP Fuel Check Circuit Breakers To protect the generator from an overload, a 3-pole, 110 amp, DANGER - EXPLOSION/FIRE HAZARDS main circuit breaker is provided to protect the U,V, and W Output Terminals from overload. In addition two single-pole, Fuel spillage on a hot engine can cause a fire or explosion .
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DCA-125USJ — PRE-SETUP Refueling Procedure: Open cabinet doors on the “right side” of the generator (from generator control panel position). Remove fuel cap and fill tank (Figure 34). WARNING - RESPIRATORY HAZARDS Diesel fuel and its vapors are dangerous to your health and the surrounding environment.
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DCA-125USJ — PRE-SETUP Coolant (John Deere Antifreeze/Summer Coolant/Water) John Deere recommends John Deere Antifreeze/Summer NOTE When the antifreeze is mixed with Coolant for use in thier engines, which can be purchased in water, the antifreeze mixing ratio concentrate (and mixed with 50% demineralized water) or must be less than 50%.
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DCA-125USJ — PRE-SETUP Battery When connecting battery do the following: This unit is of negative ground DO NOT connect in reverse. 1. NEVER connect the battery cables to the battery Always maintain battery fluid level between the specified terminals when the MPEC Control Switch is in either marks.
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DCA-125USJ — GENERATOR START-UP PROCEDURE (MANUAL) Before Starting 5. Place the voltage selector switch in the desired voltage position CAUTION - LETHAL EXHAUST HAZARD (Figure 41). The engine's exhaust contains harmful emissions. ALWAYS have adequate ventilation when operating . Figure 41. Voltage Selector Direct exhaust away from nearby personnel.
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DCA-125USJ — GENERATOR START-UP PROCEDURE (MANUAL) 9. The generator's frequency meter (Figure 45) should be 13. The coolant temperature gauge (Figure 50) will indicate displaying the 60 cycle output frequency in HERTZ. the coolant temperature. Under normal operating conditions the coolant temperature should be between 165 and 215 degrees Fahrenheit ( Green Zone ).
DCA-125USJ — GENERATOR START-UP PROCEDURE (AUTO MODE) 16. Observe the generator's ammeter (Figure 53) and verify WARNING - AUTO MODE MAINTENANCE it reads the anticipated amount of current with respect to the load. The ammeter will only display a current When running the generator in the AUTO mode, remember reading if a load is in use.
DCA-125USJ — GENERATOR SHUT-DOWN PROCEDURE Emergency Shutdown Procedure WARNING - SHUTTING DOWN THE GENERATOR 1. To shut-down the engine in the event of an emergency, NEVER stop the engine suddenly except in an emergency. switch the MAIN , GFCI and LOAD (Figure 38) circuit breakers to OFF position.
DCA-125USJ — MAINTENANCE s l e r i A e t t d i c l e v t l e i t i d s t r e t l i r i A l i F r e t l i F r e t r e t...
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DCA-125USJ — MAINTENANCE Air Removal Flushing Out Radiator and Replacing Coolant If air enters the fuel injection system of a diesel engine, Open both cocks located at the crankcase side and at starting becomes impossible. After running out of fuel, or the lower part of the radiator and drain coolant.
DCA-125USJ — MAINTENANCE Jacket Water Heater and Internal Battery Charger If the generator will be used daily, the battery should normally 120 VAC Input Receptacles (OPTIONAL) not require charging. If the generator will be idle (not used) for long periods of time, apply power to the battery charger This generator can be optionally equipped with two 120 VAC, receptacle via commercial power using an power cord of 20 amp input receptacles located on the output terminal...
DCA-125USJ — TRAILER BRAKES MAINTENANCE Brakes Hydraulic Surge Brakes Trailer brakes should be inspected the first 200 miles of Hydraulic surge brakes (Figure 57) should not require any operation. This will allow the brake shoes and drums to seat special attention with the exception of routine maintenance properly.
DCA-125USJ — TRAILER MAINTENANCE Suspension Tires/Wheels/Lug Nuts The leaf suspension springs and associated components Tires and wheels are a very important and critical (Figure 58) should be visually inspected every 6,000 miles components of the trailer. When specifying or replacing the for signs of excessive wear, elongation of bolt holes, and trailer wheels it is important the wheels, tires, and axle are loosening of fasteners.
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DCA-125USJ — TRAILER MAINTENANCE Lug Nut Torque Requirements It is extremely important to apply and maintain proper wheel mounting torque on the trailer. Be sure to use only the fasteners matched to the cone angle of the wheel. Proper procedure for attachment of the wheels is as follows: 1.
DCA-125USJ — TROUBLESHOOTING (GENERATOR) Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use Table 18 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our company's business office or service plant.
DCA-125USJ — TROUBLESHOOTING (ENGINE CONTROLLER) Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use Table 19 (Engine Controller Troubleshooting) as a basic guideline for troubleshooting the Microprocessor Engine Controller unit (MPEC). If the problem cannot be remedied, consult our company's business office or service plant. l i o l l i l i o...
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NOTE PAGE DCA-125USJ — OPERATION AND PARTS MANUAL — REV. #2 (01/27/11) — PAGE 51...
A blank entry generally indicates that the item is not sold assembly/kit that can be purchased, or is not available separately or is not sold by Multiquip. Other entries will for sale through Multiquip. be clarified in the “Remarks” Column.
DCA-125USJ — GENERATOR ASSY. GENERATOR ASSY. PAGE 54 — DCA-125USJ — OPERATION AND PARTS MANUAL — REV. #2 (01/27/11)
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DCA-125USJ — GENERATOR ASSY. GENERATOR ASSY. PART NO. PART NAME QTY. REMARKS C0110000002 ROTOR ASSY. FIELD ASSY. 8131070013 8131611014 COUPLING DISK 8131015003 BALANCING PLATE ..........1 ..... PURCHASE SET OF 1-14 0012112035 HEX HEAD BOLT 0042612000 SPRING WASHER 8101026013 SET PLATE, RECTIFIER ........1 ..... PURCHASE SET OF 1-14 0601821349 RECTIFIER ............2 .....
DCA-125USJ — FUEL TANK ASSY. FUEL TANK ASSY. PAGE 70 — DCA-125USJ — OPERATION AND PARTS MANUAL — REV. #2 (01/27/11)
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DCA-125USJ — FUEL TANK ASSY. FUEL TANK ASSY. PART NO. PART NAME QTY. REMARKS M3363001402 FUEL TANK 0605505070 FUEL TANK CAP 0605501074 FUEL SENDER UNIT 0605516090 GASKET M3363001504 FUEL TANK 0605505070 FUEL TANK CAP 0191700260 CONNECT HOSE 0605515149 HOSE BAND M3363200404 TANK BAND M9310500104...
DCA-125USJ — ENCLOSURE #1 ASSY. ENCLOSURE #1 ASSY. ADD THE FOLLOWING DIGITS AFTER THE PART NUMBER WHEN ORDERING ANY PAINTED PANEL TO INDICATE COLOR OF UNIT: 1-ORANGE 5-BLACK 2-WHITE 6-CATERPILLAR YELLOW 3-SPECTRUM GREY 7-CATO GOLD 4-SUNBELT GREEN 8-RED THE SERIAL NUMBER MAY BE REQUIRED. PAGE 72 —...
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DCA-125USJ — ENCLOSURE #1 ASSY. ENCLOSURE #1 ASSY. PART NO. PART NAME QTY. REMARKS M3413001812 BASE M3363300303 ENVIRONMENTAL TANK 0016910030 HEX, HEAD BOLT 0603306797 PLUG M3423001202 FRONT FRAME ..........1 ... S/N 8500001 TO 8500040 M3423001602 FRONT FRAME ..........1 ... S/N 8500041~ M3493107813 ACOUSTIC SHEET ...........
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DCA-125USJ — ENCLOSURE #1 ASSY. ENCLOSURE #1 ASSY. ADD THE FOLLOWING DIGITS AFTER THE PART NUMBER WHEN ORDERING ANY PAINTED PANEL TO INDICATE COLOR OF UNIT: 1-ORANGE 5-BLACK 2-WHITE 6-CATERPILLAR YELLOW 3-SPECTRUM GREY 7-CATO GOLD 4-SUNBELT GREEN 8-RED THE SERIAL NUMBER MAY BE REQUIRED. PAGE 74 —...
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DCA-125USJ — ENCLOSURE #1 ASSY. ENCLOSURE #1 ASSY. PART NO. PART NAME QTY. REMARKS M3493200614 ACOUSTIC SHEET ........... 1 ... S/N 8500001 TO 8500040 M3493201204 ACOUSTIC SHEET ........... 1 ... S/N 8500041~ 0010114040 HEX, HEAD BOLT 0030014000 HEX, NUT 0040014000 SPRING WASHER 0041214000 PLAIN WASHER...
DCA-125USJ — ENCLOSURE #2 ASSY. ENCLOSURE #2 ASSY. ADD THE FOLLOWING DIGITS AFTER THE PART NUMBER WHEN ORDERING ANY PAINTED PANEL TO INDICATE COLOR OF UNIT: 1-ORANGE 5-BLACK 2-WHITE 6-CATERPILLAR YELLOW 3-SPECTRUM GREY 7-CATO GOLD 4-SUNBELT GREEN 8-RED THE SERIAL NUMBER MAY BE REQUIRED. PAGE 76 —...
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DCA-125USJ — ENCLOSURE #2 ASSY. ENCLOSURE #2 ASSY. PART NO. PART NAME QTY. REMARKS M3443000802 REAR FRAME ........... 1 ... S/N 8500001 TO 8500035 M3443000812 REAR FRAME ........... 1 ... S/N 8500036~ M3493303203 ACOUSTIC SHEET M3443000904 DUCT ..............2 ... S/N 8500001 TO 8500035 M3443000914 DUCT ..............
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DCA-125USJ — RUBBER SEALS ASSY. RUBBER SEALS ASSY. PART NO. PART NAME QTY. REMARKS 0229200870 RUBBER SEAL 0229201130 RUBBER SEAL 0229201240 RUBBER SEAL 0228900660 RUBBER SEAL 0229201070 RUBBER SEAL 0229200125 RUBBER SEAL 0228901165 RUBBER SEAL 0228900925 RUBBER SEAL 0228901105 RUBBER SEAL 0228900565 RUBBER SEAL 0228900945...
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