Great Dane GDRZ61-27KHE, GDRZ72-27KHE, GDRZ61-25KAE Priming Fuel Injectors Fuel Injected Engines

Page 33

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

Page 32 Page 34
Image 33
Page 32 Page 34
Contents OPERATOR’S Manual Using Your Operator’s Manual IntroductionSpecial Messages Record Identification Numbers Product IdentificationTable of Contents Understanding The Machine Safety Labels SafetyM131748, MX15340 Emission Compliance Period Emission Control System Certification LabelCertification Canadian Electromagnetic Compatibility EMC ComplianceOperating Safely Operator Training RequiredChecking Mowing Area Using a Spark ArrestorParking Safely Rotating Blades are DangerousKeep Riders Off Avoid TippingChecking Wheel Bolts Practice Safe Maintenance Wear Appropriate ClothingDriving Safely on Public Roads Tire Safety Avoid High-Pressure FluidsPrevent Fires Handling Fuel Safely Handling Waste Products and ChemicalsFuel and fuel vapors are highly flammable Testing Safety Systems Daily Operating ChecklistOperating Operator Station ControlsTesting Park Brake Switch Testing PTO SwitchTesting Neutral Start Switch Testing Seat SwitchAdjusting Mower Deck Cutting Height Adjusting SeatMounting and Dismounting Machine Safely Raising and Lowering Operator SeatUsing the Park Brake Adjusting Mower Deck Anti-Scalp WheelsUsing the PTO Using the Key SwitchUnlocking Park Brake Engage PTOUsing the Hourmeter Using the Throttle LeverUsing the Choke Carbureted Engines Only Using the Motion Control LeversNeutral Lock Position Optional Over the Lap Levers Reverse Forward Gentle Right TurnGentle Left Turn Sharp Left TurnStarting the Engine Stopping the Engine Engaging MowerTransporting Machine Using Hydraulic Pump Free-Wheel ValvesMowing Tips Picture Note Left pump shownMowing Travel Speeds Dismounting to Inspect MowerAvoid Damage to Plastic and Painted Surfaces Replacement Parts PartsPart Numbers Service Intervals Grease Service LubricationSpray Lubricant Lubrication PointsPicture Note 72-inch mower deck Picture Note 48-, 52- and 61-inch mower decksService Engine Cleaning Engine Air Intake Screen and Fan Checking and Cleaning Air Filter ElementsCleaning Engine Oil Cooler Kohler Engines Oil Capacity With Filter DryReplacing Fuel Filter Carbureted Engines Checking Spark Plug Adjusting Carburetor Carbureted EnginesReplacing Fuel Filter Fuel Injected Engines Picture Note Kawasaki engine shownPriming Fuel Injectors Fuel Injected Engines Troubleshooting the Kohler Electronic Fuel Injection SystemService Engine Hydraulic Oil Service TransmissionChecking Hydraulic Oil Level Changing Hydraulic Oil and FilterCleaning Hydraulic Pump Cooling Fins Removing and Installing Traction Drive BeltChecking and Adjusting Motion Control Linkages Neutral Creep AdjustmentCheck Maximum Speed Drift Maximum Speed Drift Adjustment Hydraulic System Hose Routing Cooling Orifice Hydraulic System SchematicRemove and Install Front Caster Wheels Service Steering & BrakesServicing Front Caster Wheel Roller Bearings Chariot Servicing Front Caster Wheel Roller Bearings Chariot LXServicing Caster Spindle Bearings Adjusting Front Caster Spindle BearingCheck Alignment Height Adjustment ProcedureAlignment Procedure Adjusting Park BrakeService Mower Removing and Installing Mower Deck Foot PlateRemoving and Installing Mower Deck Belt Shields Leveling Mower Deck Adjusting Level Side-to-SideChecking Level Side-to-Side Picture Note Discharge chute raised for photo clarityAdjust Thrust Arm-to-Stop Rod Clearance Transport Position Checking and Adjusting Cutting HeightAdjusting Deck Lift Assist Spring Tension Adjust Assist Spring TensionCheck Spring Tension MX15328 MX15318 Checking and Replacing Mower Blades Sharpening Blades Balancing BladesReplacing Mower Blades Replacing Mower Spindle Bearings 72-Inch Mower Deck Service Mower Service Electrical Removing and Installing the BatteryCleaning Battery and Terminals Booster Battery Disabled Vehicle Battery Using Booster BatteryReplacing Fuse Carbureted Engines Replacing Fuses Fuel Injected EnginesBurnishing the PTO Clutch Wiring Schematic Carbureted Engines Wiring Schematic 26 HP Fuel Injected Engine Wiring Schematic 28 HP Fuel Injected Engine Filling Fuel Tank Service MiscellaneousChecking Tire Pressure Tire Size PressureCleaning and Repairing Metal Surfaces Remove and Install Rear Drive WheelsTroubleshooting Using Troubleshooting ChartCheck Troubleshooting Electrical System Machine Park BrakeSteering Mower Deck Storage Storing SafetyPreparing Machine for Storage Preparing Fuel and Engine for StorageAssembly Install Seat Install Motion Control LeversCheck Safety System Lubricate MachineInitial Adjustments Specifications Height Adjustment Increments mm 1/2 Index Belt Shields, Removing and Installing Mower DeckSpindle Bearings, Replace, 48-, 52- and 61-In. Decks Record Service Dates Service Record GD

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.

One of the most notable features of the GDRZ series is its advanced insulation technology, which significantly enhances temperature retention. This is vital for businesses that rely on the transport of perishable products, ensuring that goods remain fresh throughout the journey. The GDRZ trailers utilize high-density foam insulation, providing superior thermal performance while minimizing energy costs.

In terms of structural integrity, the GDRZ series is built with a sturdy composite construction that enhances durability while reducing overall weight. This lightweight design contributes to improved fuel efficiency, allowing operators to maximize their payload without compromising on safety or performance. Moreover, these trailers are equipped with corrosion-resistant materials, extending their lifespan and reducing maintenance costs.

The cooling systems in the GDRZ models are engineered for optimal performance. High-efficiency refrigeration units with digital thermostatic controls ensure that temperature settings are maintained accurately and can be adjusted easily. This technology enables users to monitor and record temperature data, facilitating compliance with industry regulations and providing peace of mind regarding cargo safety.

Another highlight of the GDRZ series is its user-friendly features. The ergonomic design of the interior allows for easy access to cargo, while the integrated lighting solutions facilitate loading and unloading in low-visibility conditions. The models also feature reinforced tie-down points that secure cargo effectively, reducing the risk of movement and damage during transit.

Safety is a key consideration across the GDRZ line, with advanced braking systems and reflective markings enhancing visibility and control on the road. Additional safety features may include optional GPS tracking systems, allowing operators to monitor the whereabouts of their trailers in real time, ensuring timely deliveries and improved fleet management.

In summary, the Great Dane GDRZ series, with its various models, represents a significant advancement in refrigerated transport technology. Combining energy efficiency, durability, and user-centric design, these trailers are ideal for businesses seeking reliable solutions for their refrigerated transport needs. With a commitment to quality and innovation, Great Dane continues to set industry standards for excellence in trailer manufacturing.
Top Page Image Contents