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

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FLOW CHART B. UNSTABLE VOLTAGE, ENGINE SPEED STABLE 1800 RPM START Are there any broken wires or loose connections on voltage regulator assembly? Check wiring harness from regulator assembly to end bell per TEST [MI. Check OK? yes J- ~~ ~~~ Does adjustment of Dampening Control R26 on VR21 per adjustment [PI result in stable voltage? Replace voltage regulator PC board per procedure [F]. Is engine running at correct RPM? Are reference transformer (~21) tap connections correct and secure on TB22? See TEST IO]. --Yes - Repair i as required. Repair wiring or replace as required. Is voltage stable within spec at no --Yes- . load to full load range of generator set? - no---, w Do not replace the printed circuit board untll the trouble not on the PC board has been located and corrected to avold damage to new PC board. FLOW CHART C. OUTPUT VOLTAGE TOO HIGH OR LOW START Does adjustment of Voltage Adjust control R21 on VR21 result in correct output Set RPM per instructions in appropriate engine manual. Set control pervoltage Calibration Adjustment [PI. I I I 1 t Does adjustment of control R18 on VR21 result Set per Voltage Calibration Adjustment [PI. in correct output voltage? I I I I I I Do not replace the prlnted clrcult board until the trouble not on the PC board has been located and corrected to avold damage to new PC board. I ’ 23 Are generator output leads properly connected? See Figure 36, <strong>page</strong> 34. f Replace voltage regulator PC board VR21 per procedure [F]. I _I
. FLOW CHART D. EXCITER FIELD BREAKER TRIPS START I t 1 Does AC output voltage build up to 150% or more of rated voltage before breaker trips? I no Check diodes CR1.2,3.4,5 and 6 in rotor assembly per TEST [GI. Replace if bad. Check exciter stator winding per TEST [HI. Replace if bad. Check exciter rotor winding per TEST [J]. Replace if bad. I Check generator rotor field winding per TEST [L]. Replace if bad. -yes- I * I i Check for any loose or broken wires or connections on VR21 assembly. t I i Check diodes and SCRs in bridge assembly CR21 per TEST [C]. Check.generator stator leads for proper, connection. See Figure 36, <strong>page</strong> 34. I I Check generator stator windings per TEST [K]. Replace if bad. I I I I I DO nOf tephCt? the pdnted CirCUlt board Replace voltage regulator PC board VR21 until the trouble not on the PC board has I per procedure [F]. I bcen located and corrected to avold damage to new PC board. 24 I
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 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: START Is control panel field breake
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:
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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Caution: This document contains mixed page sizes ... - Igor Chudov

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