Kohler Command PRO ECV630 Service Manual page 98

Disassembly/Inspection and Service
1. Remove shoulder bolts securing fan if still attached
and remove fan.
2. Use a flywheel strap wrench or holding tool (see
Tools and Aids) to hold flywheel and loosen screw
securing flywheel to crankshaft.
3. Remove screw and washer.
4. Use a puller to remove flywheel from crankshaft.
5. Remove woodruff key.
Inspection
Inspect flywheel for cracks and flywheel keyway for
damage. Replace flywheel if it is cracked. Replace
flywheel, crankshaft, and key if flywheel key is sheared
or keyway is damaged.
Inspect ring gear for cracks or damage. Kohler does not
provide ring gear as a serviceable part. Replace flywheel
if ring gear is damaged.
Remove Stator and Backing Plate (ECV EFI)
1. Remove screws securing backing plate. Remove
backing plate.
2. Remove screws and stator. Note position/routing of
stator lead.
Remove Oil Pan Assembly
1. Remove screws securing oil pan to crankcase.
2. Locate splitting tabs cast into perimeter of closure
plate. Insert drive end of a 1/2 in. breaker bar
between splitting tab and crankcase and turn it to
loosen seal. Do not pry on sealing surfaces as this
can cause leaks.
Inspection
Inspect oil seal in oil pan and remove it if it is worn
or damaged. Refer to Install OIl Pan Oil Seal in
Reassembly for new oil seal installation.
Inspect main bearing surface for wear or damage (refer
to Specifications). Replace oil pan assembly if required.
98
Governor Gear Assembly
Governor Shaft Press Depth Details
C
A
B
C 34.0 mm (1.3386 in.) 33.5 mm (1.3189 in.)
Governor gear assembly is located inside oil pan.
If service is required, continue with Inspection,
Disassembly, and Reassembly.
Inspection
Inspect governor gear teeth. Replace gear if it is worn,
chipped, or if any teeth are missing. Inspect governor
weights. They should move freely in governor gear.
Disassembly
NOTE: Governor gear is held onto shaft by small
molded tabs in gear. When gear is removed from
shaft, these tabs are destroyed and gear must
be replaced. Therefore, remove gear only if
absolutely necessary.
Governor gear must be replaced once it is removed from
oil pan.
1. Remove regulating pin and governor gear assembly.
2. Remove locking tab thrust washer located under
governor gear assembly.
3. Carefully inspect governor gear shaft and replace it
only if it is damaged. After removing damaged shaft,
press or lightly tap replacement shaft into oil pan to
depth shown.
Reassembly
1. Install locking tab thrust washer on governor gear
shaft with tab down.
2. Position regulating pin within governor gear/flyweight
assembly and slide both onto governor shaft.
KohlerEngines.com
A
B
Gear Shaft
19.40 mm (0.7638 in.)
24 690 02 Rev. D