Engine W I R I N G Diagrams - Onan NHC Series Operator's/Service Manual And Parts Catalog

GENERAL INFORMATION
This manual contains installation and operation i n -
structions as well as information required for proper
maintenance, adjustment and repair of the engine.
Since the first and most important part of repair work
is the correct diagnosis of the trouble, a
troubleshooting chart is included.
Study and follow the instructions carefully. Proper'
service and maintenance wiil result in longer engine
life and better performance.
How to interpret MODEL and SPEC NO.
NHC - MS / 123 A
1
3 4
1. Factory'code for general identification purposes.
2. Specific Type:
S — M A N U A L starting
M S — E L E C T R I C starting
3. Factory code for optional equipment supplied.
4. Specification (Spec Letter) advances with factory
p r o d u c t i o n m o d i f i c a t i o n .
TABLE OF CONTENTS
TITLE PAGE
General I n f o r m a t i o n 1
Safety Precautions 2
Specifications . . 3
D i m e n s i o n s and Clearances 4
Assembly T o r q u e s ahd Special Tools 5
Engine T r o u b l e s h o o t i n g 6
Installation 7
Operation 1 1
Periodic Maintenance 13
Fuel System 1 6
Governor System 22
I g n i t i o n System 24
Ba.ttery C h a r g i n g System 27
Starting System 30
Engine Disassembly 35
Parts Catalog 43
Engine W i r i n g Diagrams 66
IMPORTANT! RETURN WARRANTY C A R D A T T A C H E D TO UNIT.
9023S7