Mobile Generator
Output Voltage Troubleshooting
wc_tx000726gb.fm
81
8.13 Checking the Exciter Rotor Winding
Prerequisites
Generator shut down
Procedure
Follow the procedure below to check the exciter rotor winding.
1. Remove the rear baffle from the machine.
2. Remove the cover from the generator.
3. Remove the screws that secure the bearing carrier to the stator.
4. Disconnect the blue and yellow wires from the AVR.
5. Using a puller, pull the bearing carrier/exciter stator from the stator housing.
6. On older machines, remove the exciter rotor leads from the diode plates. The three
exciter rotor leads are connected to the diode plates in between each pair of diodes. Or,
remove the diode plates completely to access the exciter rotor leads.
7. On newer machines, the location of the three exciter rotor leads is also in between each
pair of diodes.
8. Measure the resistance across each lead and the other two leads (one lead at a time).
Is 0.3–1.0 Ohms measured in each case?
9. Check each lead for short (path) to the rotor shaft.
Does each lead measure “OPEN” or “OL” to the rotor shaft?
10.Reassemble the generator components.
The exciter rotor winding has now been checked. Continue with
Checking Stator Windings
at the Voltage Selector Switch
.
Yes____
No____
Your readings
The exciter rotor windings
are OK.
The exciter rotor has failed.
Call Wacker Neuson
Service.
_____; _____; _____
Yes____
No____
Your reading
The main rotor
winding is OK.
The main rotor winding has failed.
Call Wacker Neuson Service.
wc_gr
00
38
11
wc_gr003709
1000
200
20
2
200m
F
V
A
V-
COM
Old
New
Содержание G 85
Страница 1: ...Repair Manual Mobile Generator G 85 0171726en 004 0809 0 1 7 1 7 2 6 E N ...
Страница 8: ...Table of Contents MG Repair wc_br0171726en_004TOC fm 8 ...
Страница 17: ...Mobile Generator Theory of Operation wc_tx001077gb fm 17 wc_gr003303 c a a d e f b c b d e ...
Страница 58: ...ECM Sensor Troubleshooting Mobile Generator wc_tx000723gb fm 58 Notes ...
Страница 85: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 85 c h b d d e f g a wc_gr003320 a ...
Страница 87: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 87 wc_gr003321 a f e j i h b c d g ...
Страница 95: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 95 Notes ...
Страница 97: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 97 wc_gr003351 a c c e g b d f ...
Страница 99: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 99 wc_gr003352 a c c e g b d f ...
Страница 101: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 101 a c b b wc_gr003350 ...
Страница 103: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 103 wc_gr003286 a b c ...
Страница 105: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 105 ...
Страница 109: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 109 wc_gr003284 b a c d e ...
Страница 111: ...Mobile Generator Disassembly Assembly wc_tx000575gb fm 111 Notes ...
Страница 122: ...Technical Data G 85 wc_td000214gb fm 122 10 8 Generator Wiring Diagram BOM REV 0009369 124 0009459 133 0620003 129 ...