Husqvarna MZ6128ZT / 966613101, MZ5225ZT / 966690501 manual Transaxle Transmission Fluid Change

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LUBRICATION

Transaxle (Transmission) Fluid Change

This transaxle is designed with an external filter for ease of maintenance. To ensure constant fluid quality levels and longer life, an oil filter change interval of every 200 hours is recommended.

The following procedure is performed with the transaxles installed in the mower and the mower on level ground. Apply the pump release valve for each transaxle and set the parking brake.

1.Remove the three ¼" filter guard screws and filter guard. Clean any loose debris from around the perimeter of the filter. See illustration.

2.Place an oil drain pan (12" or more diameter and 8 qt. capacity is optimal) beneath the oil filter. Remove the oil filter from the transaxle.

Drain old oil filters of all free-flowing oil prior to disposal. Place used oil in appropriate containers and dispose of it in accordance with laws in your area.

3.After the oil has drained, wipe the filter base surface and apply a film of new oil to the gasket of the replacement filter.

4.Install the new filter by hand, turning it three- quarters to one full turn after the filter gasket contacts the filter base surface.

5.Reinstall the filter guard. Torque screws to 65 in/lbs. each.

6.Repeat steps on the opposite side.

7.Drain old oil filters of all free flowing oil prior to disposal. Place used oil in appropriate containers and dispose of it in accordance with laws in your area.

8.Remove the top port plug (see illustration) from the left side and right side of the transaxles prior to filling with oil. This will allow the transaxles to vent during oil fill.

9.Remove the cap from the transaxles’ expansion tank located on the vehicle frame.

10.Fill with 20W50 motor oil until oil just appears at the bottom of each transaxles’ top port (approximately 2 quarts per transaxle, 4 quarts total). Install the top port plug into each transaxle as the oil level reaches the port.

11.Install and torque the top port plugs to 180 in./lbs.

12.Continue to fill the transaxles through the expansion tank until the “Full Cold” line is reached (this will take approximately 23 additional ounces).

13.Reinstall the expansion tank cap by hand. Be careful to not overtighten.

14.Proceed to the purge procedure.

2

3

1

8019-010

1.Filter guard

2.Transaxle filter

3.Top port plug

ZT-3400 filter change

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Contents Operator Manual All rights reserved Contents Page Introduction Good Service Manufacturing NumberSymbols and decals Manual Performing any Safety Instructions SafetyGeneral Operation Never take passengers Personal Safety Equipment Slope OperationChildren Safe Handling of Gasoline General Maintenance Risk of sparking Transport Spark ArrestorControls Control LocationsMotion Control Levers Tracking Knob Hour MeterChoke Control Model MZ5225ZT onlyIgnition Switch Blade SwitchParking Brake Fuses Seat Adjustment Lever Cutting Height AdjusterFuel Shut Off Valve Fuel Tank Hydro Release LeversTraining OperationSteering Before Starting Starting the EngineMove the throttle to the middle position Open the fuel tank valve Jumper Cables Weak BatteryTo remove cables, reverse order Ensure that no one is near mower when engaging blade switch RunningOperating on Hills Stopping the Engine Mowing Tips Manual Transport Maintenance Maintenance Battery Replacing batterySafety System Tire PressuresDeck Belt Deck Belt InstallationDeck Belt Removal Belts Belt InstallationPump Belt Replacing Pump BeltCutting Blades Adjusting the Mower Deck Leveling deckAnti-scalp rollers Caster Wheels CleaningUse protective glasses when cleaning and washing HardwareLubrication Schedule LubricationGeneral Front Wheel Bearings Wheel and Deck ZerksFront Wheel Mount Deck SpindlesTransaxle Transmission Fluid Change Purging Procedures Troubleshooting guide Problem CauseTroubleshooting guide Storage ServiceWinter Storage Engine Pigtail PUR WHT GRY Technical Data MZ5225ZT MZ6128 ZTFrame Standard Hardware Torque SpecificationsHex Head Cap Screws Metric Standard HardwareConformity certificates USA requirementsAction Service JournalDelivery Service Stamp, signAfter 10 hours Date, mtr reading Stamp, signDaily Service Hour Service Service Journal Service Journal At least once each year Page 115 390127R1 08/31/10