Great Dane GDRZ48-19KAE, GDRZ72-27KHE, GDRZ61-25KAE, GDRZ61-28KHE, GDRZ61-26KHE Initial Adjustments

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ASSEMBLY

Initial Adjustments

c CAUTION: Avoid injury! Clear area of bystanders before performing this service procedure.

1.Check free-wheel valves on both pump assemblies to make sure that the valves are closed. Tighten valves to 108-163 N•m (80-120 lb-ft).

2.Raise the rear of the machine until the drive wheels are off the ground. Support the machine with jackstands.

c CAUTION: Avoid injury! Engine exhaust fumes

contain carbon monoxide and can cause serious illness or death.

Move the vehicle to an outside area before running the engine.

Do not run an engine in an enclosed area without adequate ventilation.

•Connect a pipe extension to the engine exhaust pipe to direct the exhaust fumes out of the area.

•Allow fresh outside air into the work area to clear the exhaust fumes out.

3.Start and run the engine until it reaches normal operating temperature.

4.Move control levers to the forward position and observe drive wheel rotation; the drive wheels should rotate in the correct direction.

5.Move the control levers to the reverse position and observe drive wheel rotation; the drive wheels should rotate in the correct direction.

6.Move PTO clutch switch to on position; mower clutch should engage. Run blades for several minutes.

7.Move PTO clutch switch to off position and shut the engine off.

8.Check all belts for proper tension.

9.Start the engine and test drive the machine in an open area. Drive the machine forward; if the machine drifts to the right or left, adjust the transmission control linkage.

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Contents OPERATOR’S Manual Special Messages Using Your Operator’s ManualIntroduction Record Identification Numbers Product IdentificationTable of Contents Understanding The Machine Safety Labels SafetyM131748, MX15340 Canadian Electromagnetic Compatibility EMC Compliance Emission Control System Certification LabelEmission Compliance Period CertificationOperating Safely Operator Training RequiredRotating Blades are Dangerous Using a Spark ArrestorChecking Mowing Area Parking SafelyChecking Wheel Bolts Keep Riders OffAvoid Tipping Driving Safely on Public Roads Practice Safe MaintenanceWear Appropriate Clothing Prevent Fires Tire SafetyAvoid High-Pressure Fluids Fuel and fuel vapors are highly flammable Handling Fuel SafelyHandling Waste Products and Chemicals Operator Station Controls Daily Operating ChecklistTesting Safety Systems OperatingTesting Seat Switch Testing PTO SwitchTesting Park Brake Switch Testing Neutral Start SwitchRaising and Lowering Operator Seat Adjusting SeatAdjusting Mower Deck Cutting Height Mounting and Dismounting Machine SafelyUsing the Park Brake Adjusting Mower Deck Anti-Scalp WheelsEngage PTO Using the Key SwitchUsing the PTO Unlocking Park BrakeUsing the Motion Control Levers Using the Throttle LeverUsing the Hourmeter Using the Choke Carbureted Engines OnlyNeutral Lock Position Optional Over the Lap Levers Sharp Left Turn Forward Gentle Right TurnReverse Gentle Left TurnStarting the Engine Stopping the Engine Engaging MowerPicture Note Left pump shown Using Hydraulic Pump Free-Wheel ValvesTransporting Machine Mowing TipsAvoid Damage to Plastic and Painted Surfaces Mowing Travel SpeedsDismounting to Inspect Mower Part Numbers Replacement PartsParts Service Intervals Lubrication Points Service LubricationGrease Spray LubricantPicture Note 72-inch mower deck Picture Note 48-, 52- and 61-inch mower decksService Engine Oil Capacity With Filter Dry Checking and Cleaning Air Filter ElementsCleaning Engine Air Intake Screen and Fan Cleaning Engine Oil Cooler Kohler EnginesPicture Note Kawasaki engine shown Checking Spark Plug Adjusting Carburetor Carbureted EnginesReplacing Fuel Filter Carbureted Engines Replacing Fuel Filter Fuel Injected EnginesPriming Fuel Injectors Fuel Injected Engines Troubleshooting the Kohler Electronic Fuel Injection SystemService Engine Changing Hydraulic Oil and Filter Service TransmissionHydraulic Oil Checking Hydraulic Oil LevelCleaning Hydraulic Pump Cooling Fins Removing and Installing Traction Drive BeltCheck Maximum Speed Drift Checking and Adjusting Motion Control LinkagesNeutral Creep Adjustment Maximum Speed Drift Adjustment Hydraulic System Hose Routing Cooling Orifice Hydraulic System SchematicServicing Front Caster Wheel Roller Bearings Chariot LX Service Steering & BrakesRemove and Install Front Caster Wheels Servicing Front Caster Wheel Roller Bearings ChariotServicing Caster Spindle Bearings Adjusting Front Caster Spindle BearingCheck Alignment Height Adjustment ProcedureAlignment Procedure Adjusting Park BrakeRemoving and Installing Mower Deck Belt Shields Service MowerRemoving and Installing Mower Deck Foot Plate Picture Note Discharge chute raised for photo clarity Adjusting Level Side-to-SideLeveling Mower Deck Checking Level Side-to-SideAdjust Thrust Arm-to-Stop Rod Clearance Transport Position Checking and Adjusting Cutting HeightCheck Spring Tension Adjusting Deck Lift Assist Spring TensionAdjust Assist Spring Tension MX15328 MX15318 Checking and Replacing Mower Blades Replacing Mower Blades Sharpening BladesBalancing Blades Replacing Mower Spindle Bearings 72-Inch Mower Deck Service Mower Cleaning Battery and Terminals Service ElectricalRemoving and Installing the Battery Replacing Fuses Fuel Injected Engines Using Booster BatteryBooster Battery Disabled Vehicle Battery Replacing Fuse Carbureted EnginesBurnishing the PTO Clutch Wiring Schematic Carbureted Engines Wiring Schematic 26 HP Fuel Injected Engine Wiring Schematic 28 HP Fuel Injected Engine Tire Size Pressure Service MiscellaneousFilling Fuel Tank Checking Tire PressureCleaning and Repairing Metal Surfaces Remove and Install Rear Drive WheelsCheck TroubleshootingUsing Troubleshooting Chart Troubleshooting Electrical System Steering MachinePark Brake Mower Deck Preparing Fuel and Engine for Storage Storing SafetyStorage Preparing Machine for StorageAssembly Lubricate Machine Install Motion Control LeversInstall Seat Check Safety SystemInitial 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.
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