Kohler command pro CH940 Service Manual page 54

Disassembly/Inspection and Service
Clean all parts thoroughly as engine is disassembled.
Only clean parts can be accurately inspected
and gauged for wear or damage. There are many
commercially available cleaners that will quickly remove
grease, oil and grime from engine parts. When such a
cleaner is used, follow manufacturer's instructions and
safety precautions carefully.
Make sure all traces of cleaner are removed before
engine is reassembled and placed into operation. Even
small amounts of these cleaners can quickly break down
lubricating properties of engine oil.
Disconnect Spark Plug Leads
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
1. Disconnect leads from spark plugs.
2. Shut off fuel supply.
Drain Oil from Crankcase and Remove Oil Filter
1. Clean oil filter and housing area. Remove and
discard oil filter.
2. Remove dipstick and 1 oil drain plug.
3. Allow ample time for oil to drain from crankcase.
Remove Muffler
Remove exhaust system and attaching hardware from
engine.
Remove Cylinder Shrouds and Blower Housing
1. Remove top mounting screw and loosen shoulder
screws on each side. Lift off cylinder shrouds.
2. Remove mounting screws and separate blower
housing from lower half.
Remove Electric Starter Motor
1. Disconnect leads from starter.
2. Remove screws and starter.
Remove Air Cleaner Assembly
NOTE: Low-profile air cleaner is removed same way as
heavy-duty air cleaner.
1. Disconnect breather hose from air cleaner and
formed vent hose from vent port on carburetor.
2. Remove nuts, ground lead, and choke return spring
bracket from mounting studs.
3. Remove screws securing air cleaner and main
control bracket to intake manifold bosses.
4. Remove air cleaner as an assembly from engine.
54
Removing Control Bracket, Governor Springs, and
Lever
1. Unhook governed idle and governor springs from
controls on main bracket and governor lever. Note
color, location, and position of each.
2. Disconnect throttle linkage and dampening spring
from governor lever at small bushing.
3. Carefully pry off pal nut, remove washers (note
assembly order), and disconnect choke linkage from
pivot lever. Do not lose any parts. Secure remaining
pivot parts with tape to avoid losing them. Always
use a new pal nut during reassembly.
4. Remove rear mounting screw on each side and lift
off control bracket.
5. Loosen nut and remove governor lever from cross
shaft.
Remove Carburetor
Explosive Fuel can cause fires and severe
burns.
Do not fill fuel tank while engine is hot or
running.
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or flames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
1. Disconnect fuel shut-off solenoid lead.
2. Remove fuel inlet hose from carburetor or fuel pump.
Properly contain any remaining fuel.
3. Remove carburetor and linkages with choke return
components as an assembly.
4. Remove carburetor gasket.
5. Carburetor and linkages can be separated as
necessary.
Remove Oil Sentry
1. Disconnect lead from Oil Sentry
2. Remove Oil Sentry
Remove Baffles and Intake Manifold
1. Remove screws securing valley baffles to cylinder
heads and backing shroud assembly.
2. Remove screws securing outer cylinder baffles in
place. Screws are accessed from backing shroud
side.
3. Remove screws securing intake manifold to cylinder
heads. Cut any wire ties that secure wiring harness
or leads to intake manifold.
4. Remove intake manifold and gaskets.
KohlerEngines.com
WARNING
(if equipped)
™
switch.
™
switch from closure plate.
™
62 690 01 Rev. J