Kohler Command PRO CH440 Service Manual page 62

Gear Reduction System
10. If servicing requires reduction case removal, remove
screws securing case to closure plate.
11. Carefully separate reduction case and gasket from
closure plate.
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Reduction Case
Inspection
NOTE: Disassembly of pressure plate is not
recommended and if worn or damaged, should
be replaced as an assembly.
Remove gaskets and clean all gasket surfaces. Do
not nick or damage surfaces. Inspect each clutch
disc and plate as well as pressure plate assembly for
abnormal wear, damage, or burning/overheating. Clean
and inspect condition of all gears and teeth for wear,
chips, or damage. Rotate bearings and check for any
roughness. Inspect bearing surfaces for any damage or
irregularities. Replace parts as required if damaged or
questionable in any way.
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Y
Closure Plate
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Reassembly
NOTE: Use new gaskets when assembling.
NOTE: Lightly lubricate metal clutch plate surfaces, all
bearings, and gears with clean oil before
assembling.
1. If removed, install reduction case and a new gasket
to closure plate. Secure with screws and torque to
24.4 N·m (216 in. lb.).
2. Install key and shoulder washer to PTO shaft. Note
that smaller shoulder faces towards engine.
3. Install clutch assembly, chain, and PTO shaft with
spring washer in reduction unit.
4. Secure clutch assembly to PTO shaft with screw and
lock washer. Torque screw to 24.4 N·m (216 in. lb.).
5. Using new reduction cover gasket, install reduction
cover to reduction case. Secure with screws. Torque
screws to 7.4 N·m (66 in. lb.).
6. Reinstall reduction unit drain plug and tighten
securely.
7. Engine must be level. Add new 20W-40 or 20W-50
oil through oil dipstick hole on top of reduction case
until oil level is up to bottom of mark on oil dipstick in
reduction case. Reinstall dipstick securely into
reduction case.
17 690 01 Rev. L