Great Dane GDRZ48-19KAE Lawn Mower User Manual


 
Service Engine - 29
SERVICE ENGINE
MX15301
4. Disconnect fuel hose (A) from the outlet side of fuel filter
(B), and drain gasoline into a properly marked container.
5. Remove fuel filter from inlet fuel hose (C). Discard filter.
6. Connect a new fuel filter to hoses using new clamps.
Make sure fuel filter is installed with arrow pointing in
direction of fuel flow.
Priming Fuel Injectors - Fuel Injected Engines
1. Park machine safely. (See Parking Safely in the Safety
section.)
2. Allow engine to cool.
3. Fill fuel tank.
4. Turn key switch to run position and leave it in the run
position for 15 seconds.
5. Start the engine. If the engine will not start, repeat step
4 two times.
Troubleshooting the Kohler Electronic Fuel
Injection System
MX15334
Chariot LX models equipped with Kohler engines with the
Electronic Fuel Injection (EFI) system will include an MIL
(Malfunction Indicator Light) (A). This light will indicate
potential problems with the EFI system.
The light will come on when the key switch is moved to the
run position, but should go out once the engine has started.
If the light remains on after the engine has started, or if the
engine fails to start, there may be a problem with the EFI
system or its related electrical system.
The MIL can also be used to access diagnostic codes to
aid service. These codes can be accessed only by an
authorized Kohler EFI servicing dealer.
When troubleshooting a problem with the Kohler EFI
system, basic engine operating problems must be
eliminated before faulting the EFI system components.
What appears to be an EFI problem could be something as
simple as a fuel tank with debris in the bottom or a plugged
vent. Be sure the engine is in good mechanical operating
condition and other systems are operating properly before
attempting to troubleshoot the EFI system.
The EFI system is a 12 VDC negative ground system,
designed to operate down to a minimum of 7.0 volts. If the
system voltage drops below this level, the operation of
voltage sensitive components such as the ECU, fuel pump
and injectors will be intermittent or disrupted, causing
erratic operation or hard starting. A fully charged, 12-volt
battery with a minimum of 250 cold cranking amps is
important in maintaining steady and reliable system
operation. Battery condition and state of charge should
always be checked first when troubleshooting an
operational problem.
c CAUTION: Avoid injury! Fuel system under
pressure. Wear personal eye protection when
disconnecting fuel hoses to guard against
spraying fuel.
IMPORTANT: Avoid damage! When installing a new
fuel filter, the filter arrow must be pointing in the
direction of fuel flow. Make sure clamps are installed
properly.
Use only approved replacement parts: fuel filter
(Bosch P/N D28256) and clamps (P/N D18439).
B
C
A
A