Engine Starting Troubleshooting
G 85
wc_tx000678gb.fm
68
7.7
Checking the Main Circuit Breaker
Prerequisites
Fully-charged battery
Emergency stop switch in disengaged (out) position.
Procedure
Follow the procedure below to check the main circuit breaker. As a reminder, place
a check mark next to the answer that applies.
1. With the lug door closed, place the main circuit breaker in the ON position.
Does the main circuit breaker stay in the ON position?
2. With the main circuit breaker in the ON position, open the lug door.
Does the main circuit breaker trip?
3. Open the large hinged panel and disconnect the yellow (Y) wire leading to the shunt of
the main circuit breaker.
4. Place the main circuit breaker in the ON position.
Does the main circuit breaker stay in the ON position?
5. With the main circuit breaker in the ON position, check for continuity (continuity equals
0.0–1.0 Ohms) between L1 of the main circuit breaker and Lug. Also check between L2
and Lug 2, and L3 and Lug 3.
Is there continuity for each check?
6. With the main circuit breaker in the OFF position, check for continuity between L1 of the
main circuit breaker and Lug 1. Also check between L2 and Lug 2, and L3 and Lug 3.
Is there continuity for any of the checks?
7. Reconnect the yellow (Y) wire.
The main circuit breaker has now been checked
.
Yes_____
No_____
Continue
The main circuit breaker has failed; replace it.
Yes_____
No_____
Continue
The main circuit breaker has failed; replace it.
Yes_____
No_____
Continue.
The main circuit breaker has failed; replace it.
Yes____
No____
Your readings
Continue.
The main circuit breaker has
failed; replace it.
_____; _____; _____
Yes_____
No____
The main circuit breaker has failed;
replace it.
The main circuit breaker is functioning
properly.
Y
Y
Y
Or
L1 L2 L3
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 ...
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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 ...