Service Manual

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 separate PARTS MANUAL for parts identification
and for establishing their proper location on assemblies.
The PARTS MANUAL contains detailed exploded views
of each assembly and the individual piece part numbers
and their proper names for ordering replacement parts.
The illustrations and procedures presented in each
section apply
to
the engines listed on the cover. The air
cleaner side of the engine is the front end. Right and left
sides are determined by viewing the engine from the
front. The No.
1
cylinder is on the right,
No.
2
cylinder is
on the left.
If
a major repair or an overhaul is necessary, a competent
mechanic should either do the job
or
supervise and
check the work of the mechanic assigned
to
the job
to
ensure that all dimensions, clearances and torque
values are within the specified tolerances.
Use the table
of
contents for a quick reference
to
the
separate engine system sections.
The troubleshooting guide is provided
as
a quick
reference for locating and correcting engine trouble.
The wiring diagram
shows
how the electrical compo-
nents are interconnected.
The disassembly section contains major overhaul
procedures for step by step removal, disassembly,
inspection, repair, and assembly
of
the engine
components.
Use only Genuine
Tom
Plower Plus replacement parts to
ensure quality and the best possible repair and overhaul
results. When ordering parts, always use the complete
model and spec number as well
as
the serial number
shown on the nameplate.
ENGINE
MODEL
REFERENCE
Identify your model by referring
to
'the model and
specification (spec letter) as shown on the unit name-
plate. Always use these numbers and the engine serial
number when making reference
to
your engine.
How
to
interpret MODEL and SPEC NO.
P
2 16
V
/
10464
A
12
3
6
7
1.
Factory code for general identification of basic
engine series.
2.
Number of cylinders.
3.
BHP rating.
4.
Designation
(G
=
horizontal shaft,
V
=
vertical shaft)
5.
Engine duty cycle.
6.
Factory code for designated optional equipment,
if
7.
Specification (spec letter) which advances with
any.
factory production modifications.
INCORRECT SERVICE
OR
REPLACEMENTOF PARTS CAN RESULT IN SEVERE
PERSONAL INJURY AND/OR EQUIPMENT DAMAGE. SERVICE PERSONNEL
MUST
BE
QUALIFIED TO PERFORM ELECTRICAL AND/OR MECHANICAL
SERVICE.