Page 2 - prOpOsitiOn 65 Warning; Diesel engine exhaust and some of
page 2 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) prOpOsitiOn 65 Warning Diesel engine exhaust and some of
Page 3 - You can also obtain information about motor vehicle safety from; repOrting safety Defects
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 3 If you believe that your vehicle has a defect that could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notify...
Page 4 - tabLe Of cOntents; 0 hz generators; component Drawings
page 4 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) tabLe Of cOntents Dca300ssc/Dca300sscU 60 hz generators Proposition 65 warning ............................................ 2 Reporting Safety Defects ......................................... 3 Table of Contents ...
Page 5 - parts OrDering prOceDUres; Ordering parts has never been easier!; Choose from three easy options:; Order via Internet; Order; Order via Fax
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 5 parts OrDering prOceDUres www .multiquip .com Ordering parts has never been easier! Choose from three easy options: WE ACCEPT ALL MAJOR CREDIT CARDS! When ordering parts, please supply: ❒ Dealer Account Number ❒ D...
Page 6 - safety infOrMatiOn; SaFetY meSSageS; Danger
page 6 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) safety infOrMatiOn Do not operate or service the equipment before reading the entire manual. Safety precautions should be followed at all times when operating this equipment. Failure to read and understand the saf...
Page 7 - general SaFetY; keep a phone on the job site.; generator SaFetY
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 7 safety infOrMatiOn general SaFetY CaUtion never operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, hearing protection, steel-toed boots and other protective ...
Page 8 - engine SaFetY
page 8 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) safety infOrMatiOn engine SaFetY Danger The engine fuel exhaust gases contain poisonous carbon monoxide. This gas is colorless and odorless, and can cause death if inhaled. The engine of this equipment require...
Page 9 - FUel SaFetY; toWing SaFetY; Safety Towing Regulations,; safety; chock blocks; rolling
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 9 safety infOrMatiOn FUel SaFetY Danger Do not start the engine near spilled fuel or combustible fl uids. Diesel fuel is extremely fl ammable and its vapors can cause an explosion if ignited. alWaYS refuel in a ...
Page 10 - eleCtriCal SaFetY; Power Cord/Cable Safety; Grounding Safety
page 10 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) safety infOrMatiOn eleCtriCal SaFetY Danger Do not touch output terminals during operation. Contact with output terminals during operation can cause electrocution, electrical shock or burn. The electr ical vo...
Page 11 - BatterY SaFetY; environmental SaFetY
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 11 safety infOrMatiOn BatterY SaFetY Danger Do not drop the battery. There is a possibility that the battery will explode. Do not expose the battery to open fl ames, sparks, cigarettes, etc. The battery contains...
Page 12 - specificatiOns; Generator Specifications; open protected type synchronous generator; Table 2. Engine Specifications; Cummins QSL9-G3 Tier 3
page 12 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) specificatiOns table 1. Generator Specifications model DCA300SSC/DCA300SSCU Type Revolving field, self ventilated, open protected type synchronous generator Armature Connection Star with Neutral Phase 3 Standby o...
Page 13 - DiMensiOns
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 13 DiMensiOns Figure 1. Dimensions Table 3. Dimensions reference letter Dimension in. (mm) reference letter Dimension in. (mm) A 39.76 in. (1,010 mm) F 43.90 in. (1,115 mm) B 43.90 in. (1,115 mm) G 149.61 in. (3,800...
Page 14 - instaLLatiOn; Figure 2. Typical Generator Grounding Application
page 14 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) instaLLatiOn Figure 2. Typical Generator Grounding Application
Page 15 - oUtDoor inStallation; Do not; generator groUnDing; eartH; alWaYS
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 15 instaLLatiOn oUtDoor inStallation Install the generator in a area that is free of debris, bystanders, and overhead obstructions. Make sure the generator is on secure level ground so that it cannot slide or shift ...
Page 16 - generaL infOrMatiOn
page 16 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) generator T h e M Q Pow e r D C A 3 0 0 S S C a n d D C A 3 0 0 S S C U generators (Figure 3) are designed as a high quality portable (requires a trailer for transport) power source for telecom sites, lighting fa...
Page 17 - MajOr cOMpOnents; Figure 3. Major Components
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 17 MajOr cOMpOnents Table 4. generator major Components item no. DeSCription 1 Muffler Assembly 2 Engine Assembly 3 Enclosure Assembly 4 Generator Assembly 5 Output Terminal Assembly 6 Battery Assembly 7 Fuel Tank A...
Page 18 - generatOr cOntrOL paneL; Figure 4. Generator Control Panel; cranking
page 18 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) generatOr cOntrOL paneL Figure 4. Generator Control Panel The definitions below describe the controls and functions of the Generator Control Panel (Figure 4).1. pilot lamp — Indicates the system is running. 2. pa...
Page 20 - engine Operating paneL; Tachometer; Figure 5. Engine Operating Panel
page 20 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) engine Operating paneL The definitions below describe the controls and functions of the Engine Operating Panel (Figure 5). 1. Tachometer — Indicates engine speed in RPM’s for 60 Hz operation. This meter should in...
Page 21 - nOtes
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 21 nOtes
Page 22 - OUtpUt terMinaL paneL faMiLiarizatiOn; oUtpUt terminal panel; oUtpUt terminal Familiarization; Figure 6. Output Terminal Panel
page 22 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) OUtpUt terMinaL paneL faMiLiarizatiOn oUtpUt terminal panel The Output Terminal Panel (Figure 6) shown below is located on the right-hand side (left from control panel) of the generator. Lift up on the cover to g...
Page 23 - 20 vaC gFCi receptacles; board; reset; twist lock Dual voltage 120/240 vaC receptacles; only; Receptacles; output terminal lugs.; increase; Figure 9. Voltage Regulator Control Knob
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 23 OUtpUt terMinaL paneL faMiLiarizatiOn 120 vaC gFCi receptacles There are two 120 VAC, 20 amp GFCI (Duplex Nema 5-20R) receptacles provided on the output terminal panel. These receptacles can be accessed in any vo...
Page 24 - Connecting loads; output; Figure 10. Connecting Loads; over Current relay; over current relay; Figure 11. Over Current Relay
page 24 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) OUtpUt terMinaL paneL faMiLiarizatiOn Connecting loads Loads can be connected to the generator by the output terminal lugs or the convenience receptacles (Figure 10). Make sure to read the operation manual before...
Page 25 - LOaD appLicatiOn; Single pHaSe loaD; table 5. power Factor By load; tHree pHaSe loaD
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 25 LOaD appLicatiOn Single pHaSe loaD Always be sure to check the nameplate on the generator and equipment to insure the wattage, amperage, frequency, and voltage requirements are satisfactorily supplied by the gene...
Page 26 - generatOr OUtpUts; generator oUtpUt voltageS; table 7. voltages available; maximum amps; table 8. generator maximum amps
page 26 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) generatOr OUtpUts generator oUtpUt voltageS A wide range of voltages are available to supply voltage for many different applications. Voltages are selected by applying jumpers (6) to the voltage change-over board...
Page 27 - generatOr OUtpUts/gaUge reaDing; HoW to reaD tHe aC ammeter anD aC; aC voltmeter gauge reading; Figure 17. AC Ammeter
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 27 generatOr OUtpUts/gaUge reaDing HoW to reaD tHe aC ammeter anD aC voltage gaUgeS The AC ammeter and AC voltmeter gauges are controlled by the AC ammeter and AC voltmeter change-over switches. Both of these switch...
Page 28 - OUtpUt terMinaL paneL cOnnectiOns; UvWo terminal oUtpUt voltageS; voltage Change-over Board; Ø-240v UvWo terminal output voltages; Connections
page 28 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) OUtpUt terMinaL paneL cOnnectiOns UvWo terminal oUtpUt voltageS Various output voltages can be obtained using the UVWO output terminal lugs. The voltages at the terminals are dependent on the placement of the jum...
Page 29 - must; Figure 23. Voltage Change-Over Board 480V; Ø-480v UvWo terminal output voltages; Ø-277v UvWo terminal output voltages
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 29 OUtpUt terMinaL paneL cOnnectiOns 3Ø-480v UvWo terminal output voltages 1. Jumper the voltage change-over board for 480V operation as shown in Figure 23. This configuration uses 6 jumper plates in 3 different pos...
Page 30 - CirCUit BreaKerS; load; lUBriCation oil; Figure 27. Engine Oil Dipstick; table 9. recommended motor oil; FUel CHeCK; Figure 28. Internal Fuel Tank System
page 30 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) inspectiOn/setUp CirCUit BreaKerS To protect the generator from an overload, a 3-pole, 800 amp, main circuit breaker is provided to protect the U,v, and W output terminals from overload. In addition two single-po...
Page 31 - Figure 29. Only Fill on Level Ground; Diesel fuel; Figure 30. Fueling the Generator
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 31 inspectiOn/setUp refueling procedure: 1. level tanks — Make sure fuel cells are level with the ground. Failure to do so will cause fuel to spill from the tank before reaching full capacity (Figure 29). Figure 29....
Page 32 - operation in Freezing Weather; Coolant Capacity; must be; Cleaning the radiator; negative; air Cleaner; Figure 33. Fan Belt Tension
page 32 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) Coolant (antiFreeze/SUmmer Coolant/ Water) Cummins recommends antifreeze/summer coolant for use in their engines, which can be purchased in concentrate (and mixed with 50% demineralized water) or pre-diluted. See...
Page 33 - BatterY; Always; Battery Cable installation; red cable; Figure 34. Battery Connections; alternator; fuel or oil
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 33 BatterY This unit is of negative ground Do not connect in reverse. Always maintain battery fluid level between the specified marks. Battery life will be shortened, if the fluid level are not properly maintained. ...
Page 34 - BeFore Starting; receptacles; Figure 36. Engine Enclosure Doors; auxiliary; INCORRECT; engine running
page 34 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) generatOr start-Up prOceDUre (ManUaL) BeFore Starting 1. Place the main, g.F.C.i., and aux. circuit breakers (Figure 35) in the oFF position prior to starting the engine. Figure 35. Main, Aux. and GFCI Circuit Br...
Page 35 - Figure 42. Frequency Meter; voltS; Figure 44. Voltage Adjust Control Knob; zero amps; Figure 46. Oil Pressure Gauge; coolant temperature gauge; Figure 47. Coolant Temperature Gauge; tachometer gauge; Figure 48. Engine Tachometer Gauge; on
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 35 generatOr start-Up prOceDUre (ManUaL) 6. The generator’s frequency meter (Figure 42) should be displaying the 60 cycle output frequency in Hertz. Figure 42. Frequency Meter 7. The generator’s AC-voltmeter (Figure...
Page 37 - generatOr shUt-DOWn prOceDUres; normal SHUtDoWn proCeDUre; oFF; emergenCY SHUtDoWn proCeDUre; PUSH; Figure 55. Emergency Stop Button
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 37 generatOr shUt-DOWn prOceDUres normal SHUtDoWn proCeDUre To shutdown the generator, use the following procedure:1. Place both the main, gFCi and loaD circuit breakers as shown in Figure 35 to the oFF position. 2....
Page 38 - DailY; Maintenance; general inSpeCtion; Engine Side; reD; “reD”
page 38 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) * 1 Replace engine oil and filter at 100 hours, first time only. * 2 Add “Supplemental Coolant Additives (SCA’S)” to recharge the engine coolant. * 3 Replace primary air filter element when restriction indicator ...
Page 39 - dusty; Figure 57. Fuel Tank Cleaning; rubber Suspension
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 39 Maintenance If the engine is operating in very dusty or dry grass conditions, a clogged air cleaner will result. This can lead to a loss of power, excessive carbon buildup in the combustion chamber and high fuel ...
Page 40 - Figure 58. Radiator Cleaning
page 40 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) To restart after running out of fuel, turn the switch to the “ON” position for 15-30 seconds. Try again, if needed. This unit is equipped with an automatic air bleeding system. CHeCK oil level Check the crankcase...
Page 41 - JaCKet Water Heater anD internal BatterY; jacket water heater; Figure 59. Battery Charger and Jacket Water
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 41 Maintenance JaCKet Water Heater anD internal BatterY C H a r g e r 1 2 0 vaC i n p U t r e C e p taC l e S (optional) This generator can be optionally equipped with two 120 VAC, 20 amp input receptacles located o...
Page 42 - traiLer Maintenance; trailer maintenanCe
page 42 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) traiLer Maintenance trailer maintenanCe This section is intended to provide the user with generic trailer service and maintenance information. The service and maintenance guidelines referenced in this section ref...
Page 43 - BraKeS; Figure 60. Hydraulic Brake Components; Actuator; surge
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 43 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 first 200 mile interval, inspect the brakes ev...
Page 44 - Suspension; leaf suspension; Figure 61. Major Suspension Components
page 44 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) traiLer Maintenance tireS/WHeelS/lUg nUtS Tires and wheels are a ver y impor tant and critical components of the trailer. When specifying or replacing the trailer wheels it is important the wheels, tires, and axl...
Page 45 - lug nut torque requirements; Do; Figure 62. Wheel Lug Nuts; never
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 45 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 whee...
Page 46 - traiLer Wiring DiagraM; Figure 63. Trailer/Towing Vehicle Wiring Diagram
page 46 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) traiLer Wiring DiagraM Figure 63. Trailer/Towing Vehicle Wiring Diagram
Page 47 - generatOr Wiring DiagraM; Figure 64. Generator Wiring Diagram
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 47 generatOr Wiring DiagraM Figure 64. Generator Wiring Diagram
Page 48 - engine Wiring DiagraM; Figure 65. Engine Wiring Diagram
page 48 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) engine Wiring DiagraM Figure 65. Engine Wiring Diagram
Page 52 - Figure 66. Diagnostic Panel; metHoD oF operation; dimly
page 52 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) trOUbLeshOOting (DiagnOstic LaMp) The engine controller of this generator diagnoses problems that arise from the engine control system and the engine itself. Press the diagnostic button (Figure 66) on the diagnos...
Page 54 - expLanatiOn Of cODe in reMarks cOLUMn; Sample partS liSt; Unique Symbols; without notice; Numbers Used; remarKS; Serial number Break
page 54 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) expLanatiOn Of cODe in reMarks cOLUMn The following section explains the different symbols and remarks used in the Parts section of this manual. Use the help numbers found on the back page of the manual if there ...
Page 55 - sUggesteD spare parts; D C a 3 0 0 S S C / D C a 3 0 0 S S C U W H i S p e rWat t; DeSCription
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 55 sUggesteD spare parts D C a 3 0 0 S S C / D C a 3 0 0 S S C U W H i S p e rWat t generator WitH CUmmingS qSl9-g3 DieSel engine 1 to 3 UnitS qtY. p/n DeSCription 1............0602015120 .......... HOSE, RADIATOR U...
Page 64 - engine anD raDiatOr assy.
page 64 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) engine anD raDiatOr assy.
Page 68 - engine Operating paneL assy.
page 68 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) engine Operating paneL assy.
Page 70 - OUtpUt terMinaL assy.
page 70 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) OUtpUt terMinaL assy.
Page 79 - HEX HEAD BOLT
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 79 MUffLer assy. no. part no. part name QTY. remarKS 1 C2331100002 MUFFLER ...................................................1 ................DCA300SSC 1 M5330100102 MUFFLER ..........................................
Page 93 - SEAL RUBBER
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 93 rUbber seaLs assy. no. part no. part name QTY. remarKS 1 0229201400 SEAL RUBBER 4 2 0228901015 SEAL RUBBER 4 3 0228901250 SEAL RUBBER 3 4 0228901310 SEAL RUBBER 3 5 0228900650 SEAL RUBBER ...........................
Page 95 - CONTROL BOX GROUP
DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) — page 95 naMepLate anD DecaLs assy. (Dca300ssc) no. part no. part name QTY. remarKS 1-1 C3550000703 DECAL : HANDLING PROCEDURES ......................... 1 ................. C35000070 1-2 C9522100003 DECAL : CAUTION ........
Page 102 - terMs anD cOnDitiOns Of saLe — parts
page 102 — DCa300SSC / DCa300SSCU gen. • operation anD partS manUal — rev. #1 (08/10/11) terMs anD cOnDitiOns Of saLe — parts PAYMENT TERMS Terms of payment for parts are net 30 days. FREIGHT POLICY All parts orders will be shipped collect or prepaid with the charges added to the invoice. All shipme...
Page 104 - OperatiOn anD parts ManUaL; Your Local Dealer is:; HERE’S HOW TO GET HELP; PLEASE HAVE THE MODEL AND SERIAL; United StateS; Canada
Manufactured for Multiquip Inc. by DENYO CO., LTD, JAPAN OperatiOn anD parts ManUaL Your Local Dealer is: HERE’S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING United StateS Multiquip Corporate Office MQ Parts Department 18910 Wilmington Ave. Carson, CA 90746 Contact: m...