Trou
ble
Sho
ot-
ing
Cha
rt
(She
et
19
of
20)
Figu
re
4
Trouble Shooting Chart (Sheet 19 of 20)
Figure 4
TROUBLE, SYMPTOM
TEST, CHECK, AND/OR
AND CONDITION
PROBABLE CAUSE
REMEDY
GENERATOR
1. No (or low) voltage
A. Shorted diode in
A. Check diodes in accordance
output
exciter rectifier
with Sect. 2-3, para. 6. If
(CR2).
diodes are good, proceed to
step B.
B. Open or shorted exci-
B. Use ohmmeter to check for
ter rotor winding
open or shorted condition.
(G2)
If exciter rotor windings
are good, proceed to step C.
C. Open or shorted exci-
C. Check field resistance.
ter field windings
for normal values.
(L2)
D. Open or shorted gen-
D. Check resistance with ohm-
erator rotor windings
meter to determine if open
(L1)
or short circuited.
2. Generator operates
A. Open or short cir-
A. Check stator winding resis-
single phase
cuited winding in
tances. (See 2-3, Fig. 12)
generator stator (G1)
for normal values.
3. Generator
A. Loose connection
A. Check all output connec-
overheats
causing high resis-
tions. Look for discoloration
tance.
caused by heat. Tighten
or replace as required.
B. Improper or blocked
B. Check for foreign material
ventilation.
(rags, etc.) blocking air
flow. Provide adequate
ventilation.
C. Generator stator
C. Check stator windings.
windings short cir-
cuited
5. Unbalanced output
A. Loose connection in
A. Check all output connections.
output circuit.
Discolored connectors
indicate a loose connection.
Tighten or replace as
required.
B. Open or short cir-
B. Check stator windings in
OM-2029
September 30/89 Revised
3-1
Page 25
Summary of Contents for 140GT17K
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Page 16: ...This page intentionally left blank OM 2029 Addendum June 6 90 Page 4 ...
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Page 42: ...Output Terminal Panel Figure 11 OM 2029 1 1 September 30 89 Revised Page 24 ...
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Page 122: ...Generator Set Figure 1 OM 2029 4 3 September 30 89 Revised Page 2 ...
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Page 128: ...Canopy Assembly Figure 2 OM 2029 4 3 September 30 89 Revised Page 4 ...
Page 130: ...Generator Set Without Canopy Figure 3 OM 2029 4 3 September 30 89 Revised Page 6 ...
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Page 134: ...Radiator and Cooling System Group Figure 4 OM 2029 4 3 September 30 89 Revised Page 10 ...
Page 136: ...Air Cleaner Assembly Figure 5 OM 2029 4 3 September 30 89 Revised Page 12 ...
Page 138: ...Electric Governor Kit Figure 6 OM 2029 4 3 September 30 89 Revised Page 14 ...
Page 140: ...Panel Engine Control Assembly Figure 7 OM 2029 4 3 September 30 89 Revised Page 16 ...
Page 142: ...Generator Control Box Assembly Figure 8 4 3 July 27 90 Page 18 OM 2029 ...
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Page 146: ...Stator Terminal Panel Assembly Figure 9 OM 2029 4 3 September 30 89 Revised Page 22 ...
Page 148: ...Power Module Panel Assembly Figure 10 OM 2029 4 3 September 30 89 Revised Page 24 ...
Page 150: ...Generator Group Figure 11 OM 2029 4 3 September 30 89 Revised Page 26 ...
Page 152: ...Fuel Line Assembly Figure 12 OM 2029 4 3 September 30 89 Revised Page 28 ...
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Page 160: ...Brake Kit Assembly Figure 14 4 3 March 16 90 Page OM 2029 ...
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