Troubleshooting
GP Repair
wc_tx000548gb.fm
90
6.16 Checking AVR’s Sensing Wires—GP 2500A
See Graphic: wc_gr003148
There are two sensing wires feeding the Automatic Voltage Regulator
(AVR) both attached to main winding 2. If the sensing wires are
shorted or broken, the AVR will not perform correctly. To check the
continuity of the sensing wires, carry out the following procedures:
6.16.1 Stop the engine.
6.16.2 Remove the two screws which secure the end cover to the generator
and remove the end cover.
6.16.3 Disconnect the generator plug
(a)
.
6.16.4 The two sensing wires are the brown and blue wires that share the
same connector
(b)
as the wires for the DC winding; disconnect this
connector.
6.16.5 Check each wire from the DC winding plug
(c)
with its counterpart in
the generator plug
(d)
: blue to blue; brown to brown. In each case there
should be continuity. Also check the wires from the DC winding plug to
the generator plug, blue to brown; and brown to blue. In each case
there should be continuity.
•
If the wires have continuity in all cases, the sensing wires are OK.
•
If the wires lack continuity in any of the tests, the sensing wires
have failed; replace the stator.
Summary of Contents for GP 3800A
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Page 13: ...GP Repair Safety Information wc_si000169gb fm 9 1 4 Label Locations GND 88897...
Page 25: ...GP Repair Technical Data wc_td000169gb fm 21 Notes...
Page 50: ...Maintenance GP Repair wc_tx000546gb fm 46 4 11 Electrical Schematic GP 2500A...
Page 52: ...Maintenance GP Repair wc_tx000546gb fm 48 4 13 Electrical Schematic GP 3800A 0620010 rev 104...
Page 54: ...Maintenance GP Repair wc_tx000546gb fm 50 4 15 Electrical Schematic GP 3800A 0620010 rev 103...
Page 60: ...Maintenance GP Repair wc_tx000546gb fm 56 4 21 Electrical Schematic GP GPS 5600A 6600A rev 104...
Page 62: ...Maintenance GP Repair wc_tx000546gb fm 58 4 23 Electrical Schematic GP GPS 5600A 6600A rev 103...
Page 68: ...Maintenance GP Repair wc_tx000546gb fm 64 4 29 Engine Schematic all GP GPS 3800A 5600A 6600A...
Page 70: ...Maintenance GP Repair wc_tx000546gb fm 66 Notes...
Page 77: ...GP Repair Troubleshooting wc_tx000548gb fm 73 wc_gr003415 z y...
Page 87: ...GP Repair Troubleshooting wc_tx000548gb fm 83 Notes...
Page 95: ...GP Repair Troubleshooting wc_tx000548gb fm 91 wc_gr003148 b c d a...
Page 112: ...Troubleshooting GP Repair wc_tx000548gb fm 108 Notes...
Page 115: ...GP Repair Disassembly Assembly Procedures wc_tx000549gb fm 111 wc_gr003136 c e f f h f g a b d...
Page 119: ...GP Repair Disassembly Assembly Procedures wc_tx000549gb fm 115 wc_gr003138 a d e c b f g i h...
Page 121: ...GP Repair Disassembly Assembly Procedures wc_tx000549gb fm 117 wc_gr003139 d d c c e f a b...
Page 123: ...GP Repair Disassembly Assembly Procedures wc_tx000549gb fm 119 wc_gr003141 c a b d e f...
Page 124: ...Disassembly Assembly Procedures GP Repair wc_tx000549gb fm 120...
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