SERVICE ENGINE

c CAUTION: Avoid injury! Fuel system under pressure. Wear personal eye protection when disconnecting fuel hoses to guard against spraying fuel.

BC

A

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.

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).

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

4two times.

Troubleshooting the Kohler Electronic Fuel Injection System

A

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.

Service Engine - 29

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Great Dane GDRZ61-27KHE, GDRZ72-27KHE, GDRZ61-25KAE, GDRZ61-28KHE, GDRZ61-26KHE Priming Fuel Injectors Fuel Injected Engines
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GDRZ48-19KAE, GDRZ61-25KHE, GDRZ61-27KHE, GDRZ48-17KAE, GDRZ72-28KHE specifications

The Great Dane GDRZ series, including models GDRZ72-27KHE, GDRZ61-25KAE, GDRZ61-28KHE, GDRZ61-26KHE, and GDRZ52-25KHE, stands out as a robust line of refrigerated trailers designed for the rigorous demands of commercial transport and logistics. These models embody a perfect fusion of innovative technologies, exceptional performance, and high durability, catering specifically to the needs of operators in the freight industry.

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