Trouble Shooting Chart (Sheet 13 of 20)
Figure 5
TROUBLE, SYMPTOM
TEST, CHECK, AND/OR
AND CONDITION
PROBABLE CAUSE
REMEDY
NO. 1 LOAD CONTACTOR OPERATING CIRCUIT (CONTINUED)
1. Load contactor (K1)
(2) Defective (open)
(2) Use a jumper with clip
will not close when
relay in protective
and prod terminals to
control switch (20,
module (1-1;
GROUND terminal “H” in
Fig. 1) is held in
4, Fig. 8)
the test receptacle. If
ON position. Generator
contactor will now
running at
close, replace module or
normal voltage. No
complete protective
fault lights on.
relay tray (12, Fig. 1)
(Continued)
(3) Defective load
(3) Set AUTO/MANUAL switch
contactor control
(S1) to AUTO position.
switch (S5) (20,
Connect a jumper with
Fig. 1)
test prods between terminals
“S” and “R” on the
test receptacle. If the
contactor closes, re-
place control switch.
(4) Defective rectifier
(4) With test receptacle
(CR6) (1-1;
terminals “S” and “R”
5, Fig. 11)
connected as above,
check voltage at load
contactor coil terminal
X2. If voltage is not
approximately 90-V DC,
replace rectifier.
(5) Defective load
(5) Disconnect leads at load
contactor coil
contactor terminals X1
(K1) (1-1; 6,
and X2. Check coil resistance
Fig. 11)
between these
terminals. Resistance
should be approximately
600 ohms. If coil is
defective, replace the
OM-2028
June 20/89 Revised
3-1
Page 21
Содержание 6910
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Страница 14: ...This page intentionally left blank OM 2028 Introduction June 20 89 Revised Page 2 ...
Страница 40: ...This page intentionally left blank OM 2028 1 1 May 1 91 Revised Page 26 ...
Страница 66: ...Engine Control Panel in Tilt out Position Figure 6 OM 2028 2 1 August 31 90 Revised Page 12 ...
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Страница 100: ...Test Receptacle Connector Termi nals Identification Figure 4 OM 2028 3 1 June 20 89 Revised Page 8 ...
Страница 128: ...Generator Set Figure 1 OM 2028 4 3 May 1 91 Revised Page 2 ...
Страница 130: ...Canopy Assembly Figure 2 OM 2028 4 3 May 1 91 Revised Page 4 ...
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Страница 134: ...Generator Set Without Canopy Figure 3 OM 2028 4 3 May 1 91 Revised Page 8 ...
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Страница 138: ...Radiator and Cooling System Group Figure 4 OM 2028 4 3 May 1 91 Revised Page 12 ...
Страница 140: ...Air Cleaner Assembly For units manufactured before and during August 1990 Figure 5 OM 2028 4 3 May 1 91 Revised Page 14 ...
Страница 142: ...Electric Governor Kit Figure 6 OM 2028 4 3 May 1 91 Revised Page 16 ...
Страница 144: ...Fuel Lines Assembly Figure 7 OM 2028 4 3 May 1 91 Revised Page 18 ...
Страница 146: ...Oil Line Assembly Figure 8 OM 2028 4 3 May 1 91 Revised Page 20 ...
Страница 148: ...Stator Terminal Panel Assembly Figure 9 OM 2028 4 3 May 1 91 Revised Page 22 ...
Страница 150: ...Power Module Panel Assembly Figure 10 OM 2028 4 3 May 1 91 Revised Page 24 ...
Страница 152: ...Control Box Assembly Figure 11 OM 2028 4 3 May 1 91 Revised Page 26 ...
Страница 154: ...Generator Controls Tray Assembly Figure 12 OM 2028 4 3 May 1 91 Revised Page 28 ...
Страница 156: ...Protective Relays Tray Assembly Figure 13 OM 2028 4 3 May 1 91 Revised Page 30 ...
Страница 158: ...Control Box and Internal Components Group Figure 14 OM 2028 4 3 May 1 91 Revised Page 32 ...
Страница 160: ...Engine Control Panel Assembly Figure 15 OM 2028 4 3 May 1 91 Revised Page 34 ...
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Страница 164: ...Output Terminal Board Assembly Figure 16 OM 2028 4 3 May 1 91 Revised Page 38 ...
Страница 166: ...Generator Assembly Figure 17 OM 2028 4 3 May 1 91 Revised Page 40 ...
Страница 168: ...Mounting Frame Assembly and Lifting Yoke Figure 18 OM 2028 4 3 May 1 91 Revised Page 42 ...
Страница 170: ...Water Heater Figure 19 OM 2028 4 3 May 1 91 Revised Page 44 ...
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