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MODEL NO. AND KW RATING 6.0-3CSl 7.5-3cs/ SPECIFICATIONS TWO BEARING ALTERNATORS ELECTRICAL DETAILS GENERAL UTILITY RATING Frequency kVA Amps Weigh€ (Approx.) In Hertz Phase Wires Watts at PF 240V Lbs. kg 60 1 4 6000 6.0 @ 1.0 25.0 235 106.6 60 1 4 7500 7.5 @ 1.0 31 -3 259 11 7.5 NO= All units are two-bearing alternatorsdesigned for clockwise mtation with belt andpulley drive or direct drive coupled to a separate prime mover- The direction of rotation is clockwise only; it is determined when facing the drive shaft end. The 60 hertz units operate at 1800 rpm while the 50 hertz units operate at 1500 rpm. NOTE: The 3CSland 53CSlmodelsare 1201240 voltsinglephase units. The lSSland518Slmodels are threephase broadrange reconnectible units. See Figure 19, <strong>page</strong> 20, for voltage codes, wiring diagram, and connection diagrams. ' 45
NOTE: For detailed troubleshooting information refer to GENERATOR and CONTROL TROUBLESHOOTING procedures and tests. A few simple checks and a proper troubleshooting procedure can locate the probable source of trouble and cut down troubleshooting time. 1. Check all modifications, repairs, replacements performed since last satisfactory operation of set to be sure that connection of generator leads are correct. A loose wire connection, overlooked when installing a replacement part could cause problems. An incorrect connection, an opened circuit breaker, or a loose printed circuit board are all potential malfunction areas to be eliminated by a visual check. Low Voltage Output of Alternator . -I TABLE 7. TROUBLESffOOTING: 2. Unless absolutely sure that panel instrumentsare accurate, use portable test meters for troubleshooting. 3. Visually inspect components on voltage regulator. Look for dirt, dust, or moisture and cracks in the printed solder conductors. Burned resistors, arcing tracks are all identifiable. Do not mark on printed circuit boards with a pencil. Graphite lines are conductive and can cause short circuits between components. 1. Speed IGW because of loose, slipping belts. 1. Adjust belt tension. 2. External short circuit on 2. Test alternator with line line. wires disconnected. 3. Open circuit of shunt field winding. 3. Make proper connections. 4. Short circuit of winding in the field or armature. 4. Refer to GENERATOR TROUBLESHOOTING, Page 5. 46 c .
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Caution: This document contains mix
Page 3 and 4:
The following symbols in this manua
Page 5 and 6:
FLOW CHART A. NO AC OUTPUT VOLTAGE
Page 7 and 8:
STMT Check exciter stator winding p
Page 9 and 10:
-1 Contact with high voltage can ca
Page 11 and 12:
The preferred test is with a megger
Page 13 and 14: are given in Table 1 (lead length b
Page 15 and 16: L - Wiring Harness Check Stop engin
Page 17: T I I I I I I I - I I I I I I I I I
Page 21 and 22: GENERAL This manual contains troubl
Page 23 and 24: generator adapter. The brushless ex
Page 25 and 26: Is control panel field breaker CB21
Page 27 and 28: FLOW CHART D. AC OUTPUT VOLTAGE BUI
Page 29 and 30: GENERAL All of the following Adjust
Page 31 and 32: . FIGURE 6. MSHlNGTHEFiELD voltage
Page 33 and 34: MULTIMETER FIGURE 11. SCR VOLTAGE T
Page 35 and 36: TABLE 2 RESISTANCE VALUES FOR ROTOR
Page 37 and 38: VOLTAGE REGULATOR The line-voltage
Page 39 and 40: VI v2 v3 v4 - VI v2 v4 VI v2 \R v4
Page 41 and 42: START Is control panel field breake
Page 43 and 44: . FLOW CHART D. EXCITER FIELD BREAK
Page 45 and 46: GENERAL All of the following Adjust
Page 47 and 48: The winding schematic (Figure 25) s
Page 49 and 50: CONTACT ONE PROD TO EACE OF M E FIE
Page 51 and 52: [a1 RECONNECTION WIRE W12 Figure 36
Page 53 and 54: 1201240 VOLT, 1 PHASE, 60 HERTZ NAM
Page 55 and 56: ASSEMBLY 9. Torque down rotor-throu
Page 57 and 58: . Starting Watts ..................
Page 59 and 60: WIRING CONNECTIONS, 15-25 kW SINGLE
Page 61 and 62: PERIODIC SERVICE AND INSPECTION SER
Page 63: I I I I CYRZI-2 I 7821-1 I - I t I
Page 67 and 68: 3. Removesix5/16x l-inch capscrewsa
Page 69 and 70: 4. Remove end bell by tapping upwar
Page 71 and 72: 9. Remove rotor and fan .by using a
Page 73 and 74: 14. If bearing, shaft, or oil seal
Page 75 and 76: AC .AMMETERS WATER TEMPERATURE GAU
Page 77 and 78: ENGINE CONTROL SYST.EM OPERATION De
Page 79 and 80: Umlt cranking 15 to 20reconds to co
Page 81 and 82: RADIATOR-COOLED DIESEL SETS The con
Page 83 and 84: Start-Disconnect Sequence When cran
Page 85 and 86: a a W a 9 W z f 66 6 b w a 3 0 E
Page 87 and 88: START Does fuel transfer pump El an
Page 89 and 90: CONTROL COMPONENT CHECKOUT The foll
Page 91 and 92: WIRING DIAGRAMS The wiring and sche
Page 93 and 94: I I I L I I m 74
Page 95 and 96: I 1 ' t I I U
Page 97: IW I- CE o_ u) z I It I 3 w
Page 100 and 101: I I I I I I I I 3 $1 :I a 1 I I tl
Page 102 and 103: P 83
Page 104 and 105: - --1 I" .- I . I - 1 85
Page 106 and 107: 87 ~ " - .I \ e 6 a i- z 0 0 a E a
Page 108 and 109: I I I I I I I I I 7 6 Et 4 3 2 I RE
Page 111: Onan Corporation 1400 73rd Avenue N
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