Output Voltage Troubleshooting
Mobile Generator
wc_tx000726gb.fm
82
8.14 Checking Stator Windings at the Voltage Selector Switch
Prerequisites
Generator shut down
Procedure
1. Follow the procedure below to check the main stator windings at the generator.
2. Remove the cover from the Voltage Selector Switch (VSS).
3. Note the positions and labels of all wires connected to the VSS (T2, T3, T4 etc.).
4. Check the resistance across each pair of wires for each winding (T1–T2, T3–T4, and so
on up to T11–T12).
Note:
T1, T4, T8, and T9 are located at the terminal strip
.
Do all six stator windings measure approximately 0.2 Ohms?
5. Reconnect the wires and reinstall the generator components.
The main stator windings have now been checked.
wc_gr003928
T2
T6
T11
L0
N
L1
T12
L2
1
5
9
13
17
21
25
3
Br
7
11
15
19
23
27
26
22
18
14
10
6
2
28
24
20
16
12
8
4
L3
L2
T10
T7
N
T3
Or
ECM
ECM
ECM
TB*
TB**
TB
TS
TS
Gen
Gen
Gen
CB
Gen
TS
TS
Lug
CB
TS
T5
Gen
Gen
Y
N
AVR = to Automatic Voltage Regulator
ECM = to Engine Control Module
Gen = from generator
TB* = to terminal block R1 (T7 on older)
TB**= to terminal block R2 (T9 on older)
TS = to terminal strip
CB = to main circuit breaker
AVR
G
T1–T2
T3–T4
T5–T6
T7–T8
T9–T10
T11–T12
Your readings
Yes____
No____
The main stator windings are OK. If there is a
difference between the readings taken here and those taken at
the lugs, the VSS has failed; replace it.
The main stator win-
dings have failed. Call
Wacker Neuson
Service.
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 ...