Great Dane GDRZ52-25KAE, GDRZ72-27KHE, GDRZ61-25KAE, GDRZ61-28KHE, GDRZ61-26KHE manual Service Mower

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SERVICE MOWER

5.Remove retaining ring (I), spindle shaft (J), lower bearing (K) and spacer (L) from spindle housing (M). Discard bearing.

6.Remove and discard upper bearing (N).

7.Clean entire assembly.

8.Install a new lower bearing (K) and spacer (L) on the spindle shaft (J).

IMPORTANT: Avoid damage! The clearance between the lower bearing and the housing is only 0.05 mm (0.002 in.). Do not force bearing into housing.

9.Install the spindle shaft (J), lower bearing (K) and spacer

(L) into the spindle housing (M).

10.Install the upper bearing (N) and retaining ring (I).

11.Install upper pulleys:

•Right and Left Spindles (A): Install pulley (D), spacer (C) and nut (B). Tighten nut to 81 N•m (60 lb-ft).

•Center Spindle (E): Install spindle pulley (H), drive pulley (G) and nut (F). Tighten nut to 81 N•m (60 lb-ft).

12.Install mower blade, blade washers and blade bolt assembly. Tighten nut to 81 N•m (60 lb-ft). (See Checking and Replacing Mower Blades.)

Service Mower - 50

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Contents OPERATOR’S Manual Using Your Operator’s Manual IntroductionSpecial Messages 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 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 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 shownMowing Travel Speeds Dismounting to Inspect MowerAvoid Damage to Plastic and Painted Surfaces Replacement Parts PartsPart Numbers 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 FinsChecking and Adjusting Motion Control Linkages Neutral Creep AdjustmentCheck Maximum Speed Drift 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 ProcedureService Mower Removing and Installing Mower Deck Foot PlateRemoving and Installing Mower Deck Belt Shields 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 PositionAdjusting 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 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 SurfacesTroubleshooting Using Troubleshooting ChartCheck Troubleshooting Electrical System Machine Park BrakeSteering 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