Caution: This document contains mixed page sizes ... - Igor Chudov

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COl WIRING HARNESS CHECK Carefully check wiring harnesses as follows: 1. Inspect all wires for breaks, loose connections, and reversed connections. Refer to applicable wiring diagram. 2. Remove wires from terminals at each end and using an ohmmeter, check each wire end to end for continuity or opens. 3. Using an ohmmeter, check each wire against each of the other wires for possible shorts or insulation breaks under areas covered by wrap- ping material. 4. Reconnect or replace wires according to applicable wiring diagram. PTO MODELS 15.0 kW l-Phase . 20.0 kW l-Phase 20.0 kW $Phase 25.0 kW l-Phase 25.0 kW $Phase TABLE 4. RESISTANCE VALUES FOR PTO ALTERNATORS VOLTAGE OHMS Q 7'F (25OC) CODE ROTOR STATOR 3c 2.77 - 2.35 0.095 P I VR21 REPLACEMENT Use the following procedure for replacing the voltage regulator PC board. 1. Stop engine. 2. Disconnect and if necessary, label the following wires: 3, 4, 5 or 6, 7, 8, 9, and 10. 3. Remove four screws at corners. 4. Remove used PC board. 5. Install new PC board; secure with four screws. 6. Reconnect wires removed in step 2 at the proper terminals. 7. Place jumper W10 at proper terminals for your particular voltage code and voltage connection. See Figures 17 and 19. 8. Perform Voltage Calibration and Stability Ad- , justment procedures [A] and [B] to obtain the correct generator output voltage and stability with new PC board in set. 1 3c 2.70 - 2.75 .063 - .076 -219 Tl-T2, T2-T3, 5D 2.70 - 2.75 Tl-T3 . 1 42 T1 -TO, T2-TO .248 T3-TO 3c 1.800 - 0.095 0.170 Tl-T2, T2-T3, 5D 1.800 - T3-Tl 0.106 Tl-TO, T2-TO 0.192 T2-TO 17
VOLTAGE REGULATOR The line-voltage regulator assemblies VR22 and VR23 On the J-Series generator Sets are solid state devices. Basic components are: Printed circuit board VR21 Voltage reference transformer T21 Commutating reactor CMR21 Field circuit breaker CB21 Voltage adjust rheostat R22 (Optional) REMOVE JUMPER WHEN OPTIONAL VOLT- AGE ADJUST CONTROL IS USED / ./ WIO VOLTAGE ADJUST (OPTIONAL) VR22 (W/O VOLT ADJ Y J VR23 (W/VOLT ADJ) - CB2 I Figure 17 shows the above components for typical control boxes. The electrical schematic and printed circuit board are shown in Figure 18. The voltage adjust control R22 is optional on either VR22 or VR23 voltage regulator. When R22 isased, it is connected between VR21-1 and VR21-3 (Figure 17) and the jumper between VR21-1 and VR21-2 is removed. \ VR21 C .FEU) )-I BREAKER / REFERENCE VOLTAGE L- N0TE:FIEU) BREAKER IS MOUNTED ON PANEL COMMUTATING TRANSFORMER REACTOR AIR-COOLED AND 8203 MARINE SETS RADIATOR-COOLED SETS FIGURE 17. STANDARD YD VOLTAGE REGULATOR ASSEMBLIES .
Page 1 and 2: 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: TABLE 2 RESISTANCE VALUES FOR ROTOR
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 and 64: I I I I CYRZI-2 I 7821-1 I - I t I
Page 65 and 66: NOTE: For detailed troubleshooting
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:
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Page 97:
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I I I I I I I I 3 $1 :I a 1 I I tl
Page 102 and 103:
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Onan Corporation 1400 73rd Avenue N
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Caution: This document contains mixed page sizes ... - Igor Chudov

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