Kohler 18RESL User Manual

TP-6519 8/1762 Section 5 Component Testing and Adjustment
throttle is held steady, then the hunting/surging
problems during operation are probably caused by
the governor. Proceed to Section 5.9.4.
4. If the engine speed hunts or surges while the
throttle is held steady, check the carburetor and
engine operation. Refer to the engine service
manual for engine diagnostic and service
information.
1. Electronic governor stepper motor
2. Carburetor throttle linkage
3. Carburetor
3
1
2
1 2 3
Figure 5-22 Stepper Motor and Carburetor
5.9.4 Governor System/Magnetic
Pickup Operation Test
If the engine continues to operate erratically after the
previous checks, test the governor system operation
using the following procedure. The procedure is
summarized in the flowchart in Figure 5-23.
tp5867
Check stepper motor
operation at startup. Does
it move to fully open and
then move to and stay in
the fully closed position?
Seestep3.
Check the magnetic
pickup.
See steps 5--7.
Check the stepper
motor coils.
Seestep12.
Yes No
Disconnect the
magnetic pickup
and check the
stepper motor
operation again.
See steps 8--10.
Troubleshoot the
ADC controller.
Seestep13.
Check the magnetic
pickup connections
to the controller:
red and black leads
to P1-5 and P1-6,
and P1-18.
Check the stepper
motor connections
to the controller.
Seestep11.
Check for broken or
loose wiring or
connections and other
itemsinstep2.
Check that the
carburetor throttle
linkage is connected to
the stepper motor as
shown in Figure 5-22.
Figure 5-23 Governor System Operation Test
Procedure Summary (Section 5.9.4)

Kohler 18RESL Specifications

General

Brand	Kohler
Model	18RESL
Category	Portable Generator
Language	English