Flywheel/Ignition Components; Remove Ignition Modules; Remove Debris Screen And Fan; Remove Flywheel - Kohler command CH18 Service Manual

Disassembly/Inspection and Service

Flywheel/Ignition Components

A Debris Screen
E Flywheel
I Backing Plate
M
Ring Support

Remove Ignition Modules

1. Disconnect lead(s) from each ignition module.
Modules for non-SMART-SPARK
have only one kill lead.
2. Rotate flywheel so magnet is away from modules.
3. Remove mounting screws and ignition modules.
Note position of ignition modules.

Remove Debris Screen and Fan

1. Small metal retainers are typically attached on 3 of 7
mounting posts for positive retention of plastic debris
screen. Use a hook-end tool next to post and pull
outward to separate small metal retainers. Then
unsnap fan from remaining mounting posts.
2. Remove screws and fan.

Remove Flywheel

NOTE: Always use a flywheel strap wrench or holding
tool to hold flywheel when loosening or
tightening flywheel screw. Do not use any type
of bar or wedge to hold flywheel. Use of such
tools could cause flywheel to become cracked or
damaged.
NOTE: Always use a flywheel puller to remove flywheel
from crankshaft. Do not strike crankshaft or
flywheel, as these parts could become cracked
or damaged. Striking puller or crankshaft can
cause crank gear to move, affecting crankshaft
end play.
66
J
I
B Fan
F Magnet
J Woodruff Key
N
Metal Debris Screen
ignition systems
™
KohlerEngines.com
P
H
D
F
G
E
C Flywheel Screw
G Stator
K Spring Washer
O
Washer
1. Use a flywheel strap wrench or holding tool (see
Tools and Aids) to hold flywheel and loosen screw
securing flywheel to crankshaft.
2. Remove screw and washer.
3. Use a puller to remove flywheel from crankshaft.
4. Remove woodruff key from crankshaft.
Inspection
Inspect flywheel for cracks and flywheel keyway for
damage. Replace flywheel if it is cracked. Replace
flywheel, crankshaft, and key if flywheel key is sheared
or keyway is damaged.
Inspect ring gear for cracks or damage. Kohler does not
provide ring gear as a serviceable part. Replace flywheel
if ring gear is damaged.
K L
M
C
B
D Washer
H Ignition Module
L Spacer
Metal Debris Screen
P
Assembly
24 690 06 Rev. J
O
N
A