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Operation Manual – ITW GSE 6400 Tier 3
Generator Check
Trouble, Symptom,
Condition
Probable Cause
Test, Check, and/or Remedy
1. Generator
does
not build up
voltage when the
engine is at the
rated speed.
Problem with brushes
Remove, clean, and reinstall the generator brushes,
replacing them if they are shorter than 7/16 of an inch
(11mm).
Exciter fuse (F3 or F8)
blown
Replace exciter fuse(s).
Defective wiring
between interface board
and generator
Check all connectors and wires between the interface board
and the generator. Pull gently on wires to insure they are
properly inserted in the connector.
Defective diode on
control winding.
The diode is located on the generator’s brush holder
mounting bracket. Check it with an ohmmeter to see if it is
good.
Defective voltage
regulator on interface
board
Replace interface board.
Defective generator
control winding
Measure resistance between two yellow wires coming from
generator. It should be around 13 ohms. It is defective if
shorted or open.
Defective generator
armature G402
If no problem was found with the control winding, the
generator stator is defective. Send unit to overhaul.
Problem with brushes
Remove, clean, and reinstall the generator brushes,
replacing them if they are shorter than 7/16 of an inch
(11mm).
Exciter fuse (F3 or F8)
blown
Replace exciter fuse(s).
Defective wiring
between interface board
and generator
Check all connectors and wires between the interface board
and the generator. Pull gently on wires to insure they are
properly inserted in the connector.
OM2254 Rev A
Page 90 of 103
Содержание 6400 JetEx Tier 3
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Страница 124: ...Operation Manual ITW GSE 6400 Tier 3 Figure 3 9 6400 T3 Output Table Assembly JetEx 8 Sheet 1 of 2 2 3 4 Page 19 of 26 ...