64
Disassembly/Inspection and Service
KohlerEngines.com
22 690 01 Rev. --
Remove Debris Screen, Fan, and Flywheel
E
A
B
F
C
D
G
H
A
Debris Screen
B
Flywheel Screw
C
Washer
D
Fan Mounting Plate
E
Fan
F
Flywheel Key
G
Flywheel
H
Magnet
NOTE: Always use a fl ywheel strap wrench or fl ywheel
holding tool (see Tools and Aids) to hold fl ywheel
when loosening or tightening fl ywheel and fan
retaining fasteners. Do not use any type of bar
or wedge between fi ns of cooling fan, as fi ns
could become cracked or damaged.
NOTE: Always use a puller to remove fl ywheel from
crankshaft. Do not strike crankshaft or fl ywheel,
as they could be cracked or damaged.
1. Unsnap debris screen from cooling fan.
2. Remove retaining screw, washer, and fan mounting
plate, securing fan and fl ywheel to crankshaft.
3. Carefully lift cooling fan to disengage two drive pins
and remove it from fl ywheel.
4. Reinstall fl ywheel retaining screw.
5. Install an anchor bolt assembly (see Tools and Aids)
in each hole of fl ywheel. Be sure to install them in
opposite directions as shown.
A
B
A
Anchor Bolt Assembly
B
Anchor Bolt Assembly in Opposite Direction
6. Position fl ywheel puller with center screw on
fl ywheel screw. Secure each anchor bolt evenly to
puller as shown.
A
B
C
D
A
Flywheel Puller
Center Screw
B
Anchor Bolt
C
Nut
D
Washer
7. Turn center screw of puller to loosen and remove
fl ywheel. Use puller to lift fl ywheel from engine.
8. Remove fl ywheel key from crankshaft.
Flywheel Inspection
Inspect fl ywheel for cracks and check keyway for wear
or damage. Replace fl ywheel if cracked. If fl ywheel key
is sheared or keyway is damaged, replace crankshaft,
fl ywheel, and key.
Inspect ring gear for cracks or damage. Ring gears are
not available separately. Replace fl ywheel if ring gear is
damaged.