General Information
INTRODUCTION
This manual deals with specific mechanical and elec-
trical information needed by engine mechanics for
troubleshooting, servicing, repairing, or overhauling
the engine.
Use the table of contents for a quick reference to the
separate engine system sections.
Use the separate Parts Catalogs available at the
dealer level, for parts identification and for establish-
ing their proper location on assemblies.
The
TROUBLESHOOTlNG
GUlDE
provides
a
quick
reference for locating and correcting engine trouble.
The illustrations and procedures presented in each
section apply to the engines listed on the cover. The
flywheel end of the engine is the front end,
so
right
and left sides are determined by viewing the engine
from the front.
The disassembly section contains major overhaul
procedures for step by step removal, disassembly,
inspection, repair and assembly of the engine
components.
If a major repair or an overhaul is necessary, a compe-
tent mechanic should either do the job or supervise
and check the work of the mechanic assigned to do
the job to ensure that all dimensions, clearances and
torque values are within the specified tolerances.
The wiring diagram shows how the electrical compo-
nents are interconnected.
A parts catalog (available at the dealer level) contains
detailed exploded views of each assembly and the
individual piece part nurnbersand their proper names
for ordering replacement parts.
Use only Genuine Onan replacement parts to ensure
quality and the best possible repair and overhaul
results. When ordering parts, always use
the
com-
plete Model and Spec number
in
addition to the Serial
number shown on the nameplate.
ENGINE MODEL REFERENCE
Identify your model by referring to the MODEL and
SPEC (specification)
NO.
as shown on the unit
nameplate. Always use this number and the engine
serial numberwhen making reference toyour engine.
How to interpret MODEL and SPEC
NO.
on generator
set engines.
1.
2.
3.
4.
12.OiDJC
-
f
/
7
f
1
2
34
Factory code for general identification purposes.
Specific TYPE, as follows.
R
-
REMOTE type. Electric starting. Optional
accessory equipment can be connected for
2
wire remote control
of
starting and stopping
E
-
ELECTRIC start type. Electric starting at
the
plant only.
Factory code for specific optional equipment
supplied.
Specification (Spec Letter). Advances with fac-
tory production modifications.
2
Redistribution or publication of this document,
by any means, is strictly prohibited.
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