Page 2 - prOpOsitiOn 65 Warning; Diesel engine exhaust and some of
page 2 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) prOpOsitiOn 65 Warning Diesel engine exhaust and some of
Page 3 - You can also obtain information about motor vehicle safety from; repOrting safetY defects
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 notifyin...
Page 4 - taBle Of cOntents; How To Read AC Ammeter/AC Voltmeter Gauges 27; component drawings
page 4 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) taBle Of cOntents dca70usi2 generator 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
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 ❒ Dea...
Page 6 - safetY infOrMatiOn; SaFeTY meSSageS; Danger
page 6 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 safet...
Page 7 - general SaFeTY; generaTor SaFeTY
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 de...
Page 8 - engIne SaFeTY
page 8 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 requires ...
Page 9 - FUel SaFeTY; ToWIng SaFeTY; Safety Towing Regulations,
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 we...
Page 10 - eleCTrICal SaFeTY; power Cord/Cable Safety; grounding Safety
page 10 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 volt...
Page 11 - BaTTerY SaFeTY; envIronmenTal SaFeTY
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 c...
Page 12 - Table 1. generator Specifications; open protected type synchronous generator; Table 2. engine Specifications; air to air intercooled; specificatiOns
page 12 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) Table 1. generator Specifications model DCA-70USI2 Type Revolving field, self ventilated, open protected type synchronous generator armature Connection Star with neutral zigzag phase 3 Single Standby output 77 kVA ...
Page 13 - diMensiOns
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 13 diMensiOns Figure 1. Dimensions Table 3. Dimensions reference letter Dimension in. (mm) reference letter Dimension in. (mm) A 30.10 in. (790 mm.) F 105.1 in. (2,670 mm.) B 30.20 in. (766 mm.) G 68.30 in. (1,735 mm....
Page 14 - installatiOn; Figure 2. Typical Generator Grounding Application
page 14 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) installatiOn Figure 2. Typical Generator Grounding Application
Page 15 - oUTDoor InSTallaTIon; Do noT remove; generaTor groUnDIng; earTh; alWaYS consult with a licensed
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 ar...
Page 16 - general infOrMatiOn
page 16 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) generaTor This generator (Figure 3) is a high quality portable (requires a trailer for transport) power source for telecom sites, lighting facilities, power tools, submersible pumps and other industrial and constru...
Page 17 - MaJOr cOMpOnents; Figure 3. Major Components; Table 4. generator major Components
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 17 MaJOr cOMpOnents Figure 3. 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 Batte...
Page 18 - generatOr cOntrOl panel; Figure 4. Generator Control Panel
page 18 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) generatOr cOntrOl panel Figure 4. Generator Control Panel 1000 2000 3000 0 R P M OFF W U V OFF W-U V-W U-V DECREASE INCREASE AUTO MANUAL OFF/RESET LOW OIL PRESSURE HIGH COOLANT TEMPERATURE OVERCRANKOVERSPEEDENGINE ...
Page 19 - nOtes
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 19 nOtes
Page 20 - engine Operating panel; Figure 5. Engine Operating Panel
page 20 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) engine Operating panel Figure 5. Engine Operating Panel OFF W U V OFF W-U V-W U-V DECREASE INCREASE 1000 2000 3000 0 R P M AUTO MANUAL OFF/RESET LOW OIL PRESSURE HIGH COOLANT TEMPERATURE OVERCRANKOVERSPEEDENGINE RU...
Page 22 - Output terMinal panel faMiliarizatiOn; oUTpUT TermInal panel; oUTpUT TermInal FamIlIarIzaTIon; Figure 6. Output Terminal Panel
page 22 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 gai...
Page 23 - 20 vaC gFCI receptacles; Receptacles; removing the plastic Face plate (hard Wire; Output Terminal Lugs; Figure 10. Plastic Face Plate
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 volt...
Page 24 - Connecting loads; output; Figure 11. Connecting Loads; over Current relay; over current relay (Figure 12) is connected to the main; Figure 12. Over Current Relay
page 24 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) Output terMinal panel faMiliarizatiOn Connecting loads Loads can be connected to the generator by the output Terminal lugs or the convenience receptacles (Figure 11). Make sure to read the operation manual before a...
Page 25 - lOad applicatiOn; SIngle phaSe loaD; Table 5. power Factor By load; Three phaSe loaD
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 genera...
Page 26 - generatOr Outputs; generaTor oUTpUT volTageS; Figure 13. Voltage Selector Switch; voltage Selector Switch locking Button; Table 7. voltages available; generator amperage; Table 8. generator maximum amps
page 26 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) generatOr Outputs generaTor oUTpUT volTageS A wide range of voltages are available to supply voltage for many different applications. Voltages are selected by using the voltage selector switch (Figure 13). To obtai...
Page 27 - generatOr Outputs/gauge reading; hoW To reaD The aC ammeTer anD aC; Do noT effect the generator output. They are provided to; Figure 14. Voltage Selector Switch; aC voltmeter gauge reading; Figure 15. aC voltmeter; aC ammeter gauge reading; Figure 17. aC ammeter
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 switches...
Page 28 - Output terMinal panel cOnnectiOns; UvWo TermInal oUTpUT volTageS; voltage Selector Switch; Figure 19. Voltage Selector Switch
page 28 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 position of the voltag...
Page 29 - Figure 24. Voltage Selector Switch; alWaYS make sure that the connections to the UVWO
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 29 Output terMinal panel cOnnectiOns 3Ø-480/277v UvWo Terminal output voltages 1. Place the voltage selector switch in the 3Ø 480/277 position as shown in Figure 24. Figure 24. Voltage Selector Switch 3Ø-480/277V Posi...
Page 30 - Figure 28. Engine Oil Dipstick; Table 11. recommended motor oil; FUel CheCK; Figure 29. Internal Fuel Tank System
page 30 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) inspectiOn/setup CIrCUIT BreaKerS To protect the generator from an overload, a 3-pole, 175 amp, main circuit breaker is provided to protect the U,v, and W output Terminals from overload. In addition two single-pole...
Page 31 - Figure 30. Only Fill on Level Ground; Figure 31. Fueling the Generator
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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 30). Figure 30. O...
Page 32 - operation in Freezing Weather; Table 12. Coolant Capacity; CleanIng The raDIaTor; Figure 34. Fan Belt Tension
page 32 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) CoolanT (anTIFreeze/SUmmer CoolanT/ WaTer) ISUZU recommends ISUZU antifreeze/summer coolant for use in their engines, which can be purchased in concentrate (and mixed with 50% demineralized water) or pre-diluted. S...
Page 33 - Figure 35. Battery Connections; alTernaTor
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — 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. Ad...
Page 34 - generatOr start-up prOcedure; BeFore STarTIng; Figure 37. Engine Enclosure Doors; STarTIng; voltage selector switch; Figure 38. Voltage Selector Switch
page 34 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) generatOr start-up prOcedure BeFore STarTIng 1. Place the main, g.F.C.I., and aux. circuit breakers (Figure 36) in the oFF position prior to starting the engine. Figure 36. Main, Aux. and GFCI Circuit Breakers (OFF...
Page 35 - engine running; zero amps with
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 35 generatOr start-up prOcedure the problem. If the engine is running smoothly, place the engine speed switch (Figure 42) in the hIgh (up) position. Figure 42. Engine Speed Switch (High) 5. Verify that the engine runn...
Page 36 - generatOr shut-dOWn prOcedures; emergenCY ShUTDoWn proCeDUre; normal ShUTDoWn proCeDUre; Circuit Breakers (OFF
page 36 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) generatOr shut-dOWn prOcedures 2. Place the engine speed switch (Figure 54) in the “ loW” (down) position.. Figure 54. Engine Speed Switch (Low) 3. Let the engine cool by running it at low speed for 3-5 minutes wit...
Page 37 - DaIlY; Maintenance; general InSpeCTIon; engine Side (Refer to the Engine; aIr Cleaner; reD meaning the element needs changing or; “reD”. Dispose of old air filter. It may not be
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 37 * 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 sh...
Page 38 - Figure 57. Fuel Tank Cleaning
page 38 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 co...
Page 39 - Figure 58. Radiator Cleaning
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 39 CheCK oIl level Check the crankcase oil level prior to each use, or when the fuel tank is filled. Insufficient oil may cause severe damage to the engine. Make sure the generator is level. The oil level must be betw...
Page 40 - trailer Maintenance; TraIler maInTenanCe
page 40 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 refer...
Page 41 - BraKeS; every 3,000 miles. If driving over rough terrain, inspect the; Brake adjustment; Figure 59. Hydraulic Brake Components; actuator; surge
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 41 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 ever...
Page 42 - Suspension; Figure 60. Major Suspension Components
page 42 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 axle ...
Page 43 - lug nut Torque requirements; Do; Figure 61. Wheel Lug Nuts; never use an pneumatic air gun to tighten wheel
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 43 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....
Page 44 - trailer Wiring diagraM; Figure 62. Trailer/Towing Vehicle Wiring Diagram
page 44 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) trailer Wiring diagraM Figure 62. Trailer/Towing Vehicle Wiring Diagram
Page 45 - generatOr Wiring diagraM; Figure 63. Generator Wiring Diagram
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 45 generatOr Wiring diagraM Figure 63. Generator Wiring Diagram
Page 46 - engine Wiring diagraM; Figure 64. Engine Wiring Diagram
page 46 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) engine Wiring diagraM Figure 64. Engine Wiring Diagram
Page 47 - cOntrOller Wiring diagraM; Figure 65. Engine Controller
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 47 cOntrOller Wiring diagraM Figure 65. Engine Controller
Page 49 - Figure 66. Diagnostic Panel; meThoD oF operaTIon; dimly lit when; on” position, the engine will not be stopped even if
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 49 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 diagnosti...
Page 50 - eXplanatiOn Of cOde in reMarks cOluMn; Sample partS liSt; remarKS Column
page 50 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 ar...
Page 51 - suggested spare parts; DCa70SSIU2 WhISperWaTT generaTor WITh; DeSCrIpTIon
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 51 suggested spare parts DCa70SSIU2 WhISperWaTT generaTor WITh ISUzU BJ-4JJ1xYgD-02 DIeSel engIne 1 to 3 units QTY. p/n DeSCrIpTIon 5............8980188580 .......... CARTRIDGE , OIL FILTER 5............8981430410 ......
Page 53 - parT name
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 53 generatOr assY. no. parT no. parT name QTY. remarKS 1 B5110000402 ROTOR ASSY 1 1-1 FIELD ASSY 1 1-2 0601820083 RECTIFIER 3 1-3 0601822664 ZNR 1 1-4 B3120100804 HOLDER, ZNR 1 1-5 B3120100604 INSULATOR WASHER 3 1-6 B...
Page 60 - engine and radiatOr assY.
page 60 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) engine and radiatOr assY.
Page 64 - Output terMinal assY.
page 64 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) Output terMinal 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 GRE...
Page 75 - ROOF PANEL
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 75 enclOsure assY. #1 (cOntinued) no. parT no. parT name QTY. remarKS 35 0010114040 HEX HEAD BOLT 4 35A 0030014000 HEX NUT 4 35B 0040014000 WASHER, LOCK 4 35C 0041214000 WASHER, FLAT 8 36 0010120050 HEX HEAD BOLT 4 36...
Page 80 - naMeplate and decals assY.
page 80 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) naMeplate and decals assY.
Page 81 - STRIPE
DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) — page 81 naMeplate and decals assY. no. parT no. parT name QTY. remarKS 1 M1550000204 DECAL : NOTE ..........................................................1 ........... M15000020 2 M1550002203 DECAL : AUXILIARY OUTPUT ......
Page 82 - terMs and cOnditiOns Of sale — parts
page 82 — DCa70USI2 60 hz generaTor • operaTIon anD parTS manUal — rev. #0 (06/28/11) 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 shipments...
Page 84 - OperatiOn and parts Manual; Your Local Dealer is:; HERE’S HOW TO GET HELP; PLEASE HAVE THE MODEL AND SERIAL; United StateS; Canada
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: [email protected] Tel. (800) 421-1244 Fax (800) 537-3927 80...
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