Service and Repairs

63
Gear Reduction System
17 690 01 Rev. L KohlerEngines.com
K
B
A
C
D
E
F
J
I
H
G
L
A
A Oil Seal B Reduction Cover C
Reduction Cover
Bearing
D PTO Shaft
E Ball Bearing F Spacer G
Reduction Cover
Gasket
H Flat Washer
I Drive Gear J
Countershaft Gear
Assembly
K PTO Flange Adapter L Closure Plate
CH395/CH440 6:1 Gear Reduction System
Components
This reduction system is lubricated by engine crankcase
oil. No special maintenance or service is necessary.
Check and maintain engine oil level as outlined in Check
Oil Level (see Lubrication System).
Disassembly
NOTE: Place a drain pan under gear reduction unit to
catch any residual oil when cover is removed.
Dispose of used oil in accordance with local
ordinances.
NOTE: Countershaft and PTO shaft bearings can be
removed if necessary using a bearing puller.
PTO shaft bearing removal requires closure
plate removal. Refer to Disassembly/Inspection
and Service for procedure.
1. Remove engine oil drain plug and drain oil into
suitable container.
2. Remove any drive coupling and key from reduction
assembly PTO shaft. Clean shaft and keyway of any
burrs/damage.
3. Remove screws securing reduction cover to closure
plate.
4. Remove reduction cover and gasket.
B
G
B Reduction Cover G
Reduction Cover
Gasket