Kohler Command PRO CV26, Service Manual

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Reassembly
131 24 690 02 Rev. H KohlerEngines.com
Connect Spark Plug Leads
Connect leads to spark plugs.
Prepare Engine for Operation (ECV EFI)
NOTE: If ECU, throttle body, TPS or fuel pump module
were replaced, an ECU Reset and TPS Learn is
required. Refer to Electrical System Reset and
TPS Learn procedure.
Engine is now completely reassembled. Before starting
or operating engine, be sure to follow steps below.
1. Make sure all hardware is tightened securely.
2. Make sure oil drain plugs, Oil Sentry
™
pressure
switch, and a new oil fi lter are installed.
3. Fill crankcase with correct amount, weight, and type
of oil. Refer to oil recommendations and procedures
in Maintenance, Speci fi cations, and Lubrication
System.
4. Adjust idle speed adjusting screw as necessary.
Refer to Fuel System.
5. Turn on fuel supply.
Sensitivity Adjustment (Mechanical Governor Only)
B
A
C
D
E
A Governor Lever B Hole 1
C Hole 2 D Hole 3
E Hole 4
Governor sensitivity is adjusted by repositioning
governor spring in holes of governor lever. If speed
surging occurs with a change in engine load, governor
is set too sensitive. If a big drop in speed occurs when
normal load is applied, governor should be set for
greater sensitivity. Adjust as follows:
1. To increase sensitivity, move spring closer to
governor lever pivot point.
2. To decrease sensitivity, move spring away from
governor lever pivot point.
Testing Engine
It is recommended engine be operated on a stand or
bench prior to installation in piece of equipment.
1. Start engine, inspect for leaks and check to make
certain that oil pressure (20 psi or more) is present.
Run engine at idle for 2-3 minutes, then 5-6 minutes
more between idle and midrange.
2. Adjust idle speed screw located on throttle body as
necessary. Standard idle speed setting for EFI
engines is 1500 RPM, but certain applications might
require a different setting.
3. Adjust high-speed stop as necessary located on
control panel (if equipped). Make sure maximum
engine speed does not exceed 4200 RPM (no load).
4. Mechanical Governor : Adjust governed idle and
high speed (RPM) to required settings. Make sure
maximum engine speed does not exceed 3900 RPM
(no load).
Electronic Governor : Attach 12 volt jumper wire to
speed control input red wire with yellow tracer.
Engine speed should increase to high. Make sure
maximum engine speed does not exceed 4200 RPM
(no load). If engine speed does not increase, refer to
Governor section for proper troubleshooting and
diagnostics.