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OPERATION AND PARTS MANUAL ® MODEL DCA125USI 60 HZ GENERATOR (ISUZU 4HK1X DIESEL ENGINE) Revision #1 (03/25/11) To fi nd the latest revision of this publication, visit our website at: www.multiquip.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
1-888-327-4236 (TTY: 1-800-424-9153), go to http://www.nhtsa.dot.gov; or write to: Administrator NHTSA 1200 New Jersey Avenue S.E. Washington, DC 20590 You can also obtain information about motor vehicle safety from http://www.safecar.gov. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 3...
All orders are treated as Standard Orders and will ship the same day if received prior to 3PM PST. WE ACCEPT ALL MAJOR CREDIT CARDS! DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 5...
CAUTION Indicates a hazardous situation which, if not avoided, COULD result in MINOR or MODERATE INJURY. NOTICE Addresses practices not related to personal injury. PAGE 6 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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ALWAYS store equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of the reach of children and unauthorized personnel DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 7...
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NEVER touch the hot exhaust manifold, local Health and Safety Administrator. muffl er or cylinder. Allow these parts to cool before servicing equipment. PAGE 8 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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Use the trailer’s swivel jack to adjust the trailer height to ALWAYS shutdown engine before transporting a level position while parked. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 9...
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NEVER grab or touch a live power cord or cable with wet hands. The possibility exists of electrical shock, electrocution or death. PAGE 10 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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ALWAYS disconnect the NEGATIVE battery terminal before performing service on the generator. ALWAYS keep battery cables in good working condition. Repair or replace all worn cables. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 11...
37.00 in. (940 mm.) 73.00 in. (1,855 mm.) 36.20 in. (920 mm.) 48.80 in. (1,200 mm.) 37.00 in. (940 mm.) 3620 in. (920 mm.) DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 13...
They are to resist damage to the bottom of the generator and to maintain alignment. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 15...
7. AC Voltmeter — Indicates the output voltage present main circuit breaker in the closed position (ON). at the U,V, and W Output Terminal Lugs. PAGE 18 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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NOTES DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 19...
F. Engine Running — Indicates that engine is running controller will evaluate the fault at a safe operating speed. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 21...
Two GFCI Circuit Breakers @ 20 amps Five Output Terminal Lugs ( U, V, W, O, Ground) Figure 6. Output Terminal Panel PAGE 22 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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240/120 position. Figure 10. Plastic Face Plate (Output Terminal Lugs) Figure 8. 120/240V Twist-Lock Auxiliary Receptacles DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 23...
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Make sure to switch ALL circuit breakers to the OFF position prior to starting the engine. Figure 12. Over Current Relay Figure 11. Connecting Loads PAGE 24 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
1800 3600 150 ft. 100 ft. 65 ft. 2400 4800 125 ft. 75 ft. 50 ft. CAUTION: Equipment damage can result from low voltage DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 25...
W and U terminals as indicated on the AC Voltmeter Gauge (Figure 16) Figure 15. AC Voltmeter Figure 16. AC Voltmeter Change-Over Switch Gauge DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 27...
To achieve a 3Ø 208V output the voltage selector switch Figure 20. UVWO Terminal Lugs must be in the 3Ø-240/139 position and the voltage 3Ø-240/139V Connections regulator must be adjusted to 208V. PAGE 28 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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ALWAYS make sure that the connections to the UVWO terminals are secure and tight. The possibility of arcing exists, that could cause a fi re. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 29...
API Service Classifi cation CC/SD API Service Classifi cation CC/SE API Service Classifi cation CC/SF Table 11. Recommended Motor Oil Figure 29. Internal Fuel Tank System PAGE 30 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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ONLY use #2 diesel fuel when refueling. DO NOT OVERFILL fuel system. Leave room for fuel expansion. Fuel expands when heated (Figure 33). Figure 33. Fuel Expansion DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 31...
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Freezing Point Vol % Anti-Freeze °C °F NOTICE When the antifreeze is mixed with water, the antifreeze mixing ratio must be less than 50%. PAGE 32 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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Tighten all hose clamps and check hoses for leaks. Figure 35. Battery Connections If any hose (fuel or oil) lines are defective replace them immediately. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 33...
5. Close all engine enclosure doors (Figure 37). Figure 41. MPEC Control Switch (Manual Position) CORRECT INCORRECT Figure 37. Engine Enclosure Doors PAGE 34 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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42 to 71 displaying the 60 cycle output frequency in HERTZ. psi. (290~490 kPa). Figure 49. Oil Pressure Gauge Figure 45. Frequency Meter DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 35...
16. The generator will run until manually stopped or an 1. Place the MPEC Control Switch (Figure 56) in the abnormal condition occurs. OFF/RESET position. PAGE 36 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
RED meaning the element needs changing or service. After changing the air element, press the dust indicator button to reset the indicator. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 37...
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To restart after running out of fuel, turn the switch to the “ON” position for 15-30 seconds. Try again, if needed. Figure 58. Fuel Tank Cleaning PAGE 38 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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Allow engine to cool when fl ushing out radiator. Flushing the radiator while hot could cause serious burns from water or steam. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 39...
To ensure adequate starting capability, always have power applied to the generator's internal battery charger.. Figure 60. Battery Charger & Jacket Water Heater Power Connections PAGE 40 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
16. Application — Indicates which units can be employed on a particular trailer. 7. Coupler — Type of hitch used on the trailer for towing. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 41...
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Dragging Brakes Replace rubber parts Enough brake fl uid or correct fl uid? fi ll with dot 4 fl uid. PAGE 42 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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Align wheels. Check bearing adjustment Cupping Out-of-balance. and balance tires. Wheel lockup and Avoid sudden stops when Flat Spots tire skidding. possible and adjust brakes. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 43...
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90-120 16" 20-25 50-60 90-120 Figure 63. Wheel Lug Nuts Tightening Sequence NOTICE NEVER use an pneumatic air gun to tighten wheel lug nuts. PAGE 44 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
“ON” position, the engine will not be stopped even if the starter switch is turned to the “OFF” position. In such case, turn the diagnostic switch to the “OFF” position. PAGE 50 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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NOTES DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 51...
Multiquip. Other entries will for sale through Multiquip. be clarified in the “Remarks” Column. PAGE 52 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
1....0601806640 ..FUSE, 65 AMP 2....LY2DUS12VDC ..RELAY NOTICE Part number on this Suggested Spare Parts list may supersede/replace the P/N shown in the text pages of this book. DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 53...
ENCLOSURE ASSY. PART 2. PAGE 78 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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M3453005303 SIDE DOOR M3493426504 ACOUSTIC SHEET M3453005403 SIDE DOOR M3493426504 ACOUSTIC SHEET M3453002703 SIDE DOOR M3493417204 ACOUSTIC SHEET M3453005503 SIDE DOOR M3493426604 ACOUSTIC SHEET DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 79...
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ENCLOSURE ASSY. PART 2 (CONTINUED) PAGE 80 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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HINGE ............5 ....REPLACES P/N M9110100904 M9116100004 WASHER 011008020 HEX HEAD BOLT ........26 ....REPLACES P/N 0019208020 0601850097 STOPPER 0027208025 MACHINE SCREW M9310000004 0600800320 MANUAL PAK 0021806016 MACHINE SCREW DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 81...
RUBBER SEALS ASSY. PAGE 82 — DCA125USI 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)
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0229201090 RUBBER SEAL 0228100630 RUBBER SEAL 0229401080 RUBBER SEAL 0228800565 RUBBER SEAL 0228801080 RUBBER SEAL 0228800545 RUBBER SEAL 0228100370 RUBBER SEAL 0228100640 RUBBER SEAL DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 83...
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