Great Dane GDRZ61-28KHE, GDRZ72-27KHE, GDRZ61-25KAE, GDRZ61-26KHE Maximum Speed Drift Adjustment

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SERVICE TRANSMISSION

2.Sit on the seat, and start the engine.

3.Operate machine to bring the hydraulic oil to normal operating temperature.

4.Move the machine in a level, wide-open area, such as an empty parking lot.

5.Run the engine at full throttle.

6.Move and hold both control levers to the full forward

position. Observe the machine travel. If the machine does not travel in a straight line, adjustment is required. Note the direction the machine moves.

Maximum Speed Drift Adjustment

1.Park machine safely. (See Parking Safely in the Safety section.)

2.Tilt operator seat forward and support the seat frame.

NOTE: If the machine travels to the left, adjust the right speed drift screw (A). If the machine travels to the right, adjust the left speed drift screw (B).

A

B

DC

MX15351

3.Adjust the appropriate speed drift screw (A or B) as follows:

a.Loosen jam nut (C or D).

b.Adjust the screw (A or B) one turn clockwise.

c.Tighten the jam nut (C or D).

4.Lower the seat platform.

5.Perform Check Maximum Speed Drift procedure to check adjustment. Repeat the adjustment procedure as needed.

Service Transmission - 34

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Contents OPERATOR’S Manual Special Messages Using Your Operator’s ManualIntroduction Product Identification Record Identification NumbersTable of Contents Safety Understanding The Machine Safety LabelsM131748, MX15340 Certification Emission Control System Certification LabelEmission Compliance Period Canadian Electromagnetic Compatibility EMC ComplianceOperator Training Required Operating SafelyParking Safely Using a Spark ArrestorChecking Mowing Area Rotating Blades are DangerousChecking 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 Operating Daily Operating ChecklistTesting Safety Systems Operator Station ControlsTesting Neutral Start Switch Testing PTO SwitchTesting Park Brake Switch Testing Seat SwitchMounting and Dismounting Machine Safely Adjusting SeatAdjusting Mower Deck Cutting Height Raising and Lowering Operator SeatAdjusting Mower Deck Anti-Scalp Wheels Using the Park BrakeUnlocking Park Brake Using the Key SwitchUsing the PTO Engage PTOUsing the Choke Carbureted Engines Only Using the Throttle LeverUsing the Hourmeter Using the Motion Control LeversNeutral Lock Position Optional Over the Lap Levers Gentle Left Turn Forward Gentle Right TurnReverse Sharp Left TurnStarting the Engine Engaging Mower Stopping the EngineMowing Tips Using Hydraulic Pump Free-Wheel ValvesTransporting Machine Picture Note Left pump shownAvoid Damage to Plastic and Painted Surfaces Mowing Travel SpeedsDismounting to Inspect Mower Part Numbers Replacement PartsParts Service Intervals Spray Lubricant Service LubricationGrease Lubrication PointsPicture Note 48-, 52- and 61-inch mower decks Picture Note 72-inch mower deckService Engine Cleaning Engine Oil Cooler Kohler Engines Checking and Cleaning Air Filter ElementsCleaning Engine Air Intake Screen and Fan Oil Capacity With Filter DryReplacing Fuel Filter Fuel Injected Engines Checking Spark Plug Adjusting Carburetor Carbureted EnginesReplacing Fuel Filter Carbureted Engines Picture Note Kawasaki engine shownTroubleshooting the Kohler Electronic Fuel Injection System Priming Fuel Injectors Fuel Injected EnginesService Engine Checking Hydraulic Oil Level Service TransmissionHydraulic Oil Changing Hydraulic Oil and FilterRemoving and Installing Traction Drive Belt Cleaning Hydraulic Pump Cooling FinsCheck Maximum Speed Drift Checking and Adjusting Motion Control LinkagesNeutral Creep Adjustment Maximum Speed Drift Adjustment Hydraulic System Hose Routing Hydraulic System Schematic Cooling OrificeServicing Front Caster Wheel Roller Bearings Chariot Service Steering & BrakesRemove and Install Front Caster Wheels Servicing Front Caster Wheel Roller Bearings Chariot LXAdjusting Front Caster Spindle Bearing Servicing Caster Spindle BearingsHeight Adjustment Procedure Check AlignmentAdjusting Park Brake Alignment ProcedureRemoving and Installing Mower Deck Belt Shields Service MowerRemoving and Installing Mower Deck Foot Plate Checking Level Side-to-Side Adjusting Level Side-to-SideLeveling Mower Deck Picture Note Discharge chute raised for photo clarityChecking and Adjusting Cutting Height Adjust Thrust Arm-to-Stop Rod Clearance Transport PositionCheck 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 Fuse Carbureted Engines Using Booster BatteryBooster Battery Disabled Vehicle Battery 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 Checking Tire Pressure Service MiscellaneousFilling Fuel Tank Tire Size PressureRemove and Install Rear Drive Wheels Cleaning and Repairing Metal SurfacesCheck TroubleshootingUsing Troubleshooting Chart Troubleshooting Electrical System Steering MachinePark Brake Mower Deck Preparing Machine for Storage Storing SafetyStorage Preparing Fuel and Engine for StorageAssembly Check Safety System Install Motion Control LeversInstall Seat Lubricate MachineInitial Adjustments Specifications Height Adjustment Increments mm 1/2 Belt Shields, Removing and Installing Mower Deck IndexSpindle Bearings, Replace, 48-, 52- and 61-In. Decks Service Record GD Record Service Dates

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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