Service and Repairs

Table Of Contents

Gear Reduction System

KohlerEngines.com 17 690 01 Rev. L

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: Bearing in cover can be removed if necessary

using a bearing puller. Crankshaft bearing

removal requires closure plate removal. Refer to

Disassembly/Inspection and Service for

procedure.

1. Remove any drive coupling and key from reduction

assembly PTO shaft. Clean shaft and keyway of any

burrs/damage.

2. Remove drain plug and reduction case dipstick, and

drain oil into suitable container.

3. Remove screws securing reduction cover to

reduction case.

B Reduction Cover

4. Remove reduction cover and gasket. Ensure two

dowel pins remain in place.

5. Remove screw and lock washer securing clutch

assembly to crankshaft.

Z Clutch Assembly

6. Carefully remove clutch assembly, chain, and PTO

shaft with spring washer from unit as an assembly.

Q Chain U PTO Shaft

7. Separate clutch assembly components. Note order

of disassembly.

I Clutch Center Gear K Pressure Plate

L Clutch Plate M Friction Disc

N Clutch Cup

8. Remove key and thrust washer from PTO shaft.

Note that smaller shoulder faces towards engine.

P Thrust Washer