Service and Repairs
Table Of Contents
65
Gear Reduction System
17 690 01 Rev. L KohlerEngines.com
D
B
A
C
E
F
H
I
G
J
L
V
U
T
M
N
O
P
Q
R
S
K
W
Y
X
Z
A Oil Seal B Reduction Cover C Weight Holder Pin D Retaining Ring
E Clutch Holder Spring F Weight Holder G Clutch Weight H Weight Retainer
I Clutch Center Gear J Square Key K Pressure Plate L Clutch Plate
M Friction Disc N Clutch Cup O Drive Gear P Thrust Washer
Q Chain R
Reduction Cover
Gasket
S Reduction Case T Ball Bearing
U PTO Shaft V Crankshaft Bearing W Closure Plate X Drain Plug
Y
Reduction Case
Dipstick
Z Clutch Assembly
CH395/CH440 2:1 with Clutch Gear Reduction System
Components
NOTE: Engines with this reduction system must be operated at 2400 RPM or higher under load, when full gear box
engagement occurs. Operating engine under heavy loads below 2400 RPM, could result in clutch/gear box
failure from disc slippage/overheating and insuffi cient engine cooling, not covered under normal warranty.
This reduction system uses a clutch assembly and chain and sprocket drive system, independent of, and separated
from main crankcase lubrication. Check and maintain oil level using dipstick in gear box (reduction) case. Change
reduction system oil at interval in maintenance schedule (see Maintenance).Use 20W-40 or 20W-50 oil in this gear
box (reduction) case. Oil capacity of this gear box is 0.5 L (0.52 U.S. qt.).