Service and Repairs

55
Gear Reduction System
17 690 01 Rev. L KohlerEngines.com
Some engines are equipped with either a 6:1 or a 2:1 gear reduction system.
● 6:1 Gear reduction system reduces PTO shaft RPM by 6:1; crankshaft turns 6 times to 1 time of PTO shaft.
● 2:1 Gear reduction system reduces PTO shaft RPM by 2:1; crankshaft turns 2 times to 1 time of PTO shaft.
F
H
J
I
G
D
C
A
K
L
B
C
D
E
A Oil Seal B Screw C Oil Fill Plug D Oil Level/Drain Plug
E Reduction Cover F
Reduction Cover
Bearing
G
Reduction Cover
Gasket
H PTO Shaft
I
Inner PTO Support
Bearing
J Reduction Case K
Reduction Case
Gasket
L Closure Plate
CH245, CH255, CH270 6:1 Gear Reduction System
Components
WARNING
Before working on engine or equipment, disable engine as
follows: 1) Disconnect spark plug lead(s). 2) Disconnect
negative (–) battery cable from battery.
Accidental Starts can cause severe injury or
death.
Disconnect and ground spark plug lead(s)
before servicing.