LUBRICATION

Hydraulic Pump

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 can be performed with the pump installed in the vehicle, and the vehicle on level ground. Apply the bypass valve and lock the vehicle parking brake.

1.Place an oil drain pan with a two gallon capacity beneath the oil filter. Remove the oil filter from the pump.

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

3.Prefill the oil filter with new oil and install the new filter by hand. Turn ¾ to one full turn after the filter gasket contacts the filter base surface.

4.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.

5.Remove the cap from the pump’s tank located on the vehicle frame.

6.Fill reservoir with SAE 10W30 oil to just above the MIN-ADD line on the reservoir. After purging, check levels and add oil if necessary.

7.Reinstall the tank cap by hand. Do not overtighten.

8.Proceed to the purge procedure.

Purging Procedures

Due to the effects air has on efficiency in hydrostatic drive applications, it is critical to purge the system.

These purge procedures should be implemented any time a hydrostatic system has been opened to facilitate maintenance or any additional oil has been added to the system.

Resulting symptoms in hydrostatic systems may be:

1.Noisy operation.

2.Lack of power or drive after short term operation.

3.High operation temperature and excessive expansion of oil.

4.Shortened component life.

2

3

1

8061-016

1.Pump filter

2.Pump reservoir

3.Fluid fill lines

Changing the hydraulic pump oil filter

Before starting, make sure the pump is at the proper oil level. If not, fill to the specifications outlined prior.

The following procedures are best performed with the vehicle drive wheels off the ground, then repeated under normal operating conditions.

1.Disengage the brake if activated.

2.With the bypass valve open and the engine running at fast idle, slowly move the directional control in both forward and reverse directions (5 or 6 times). As air is purged from the unit, the oil level will drop.

3.With the bypass valve closed and the engine running, slowly move the directional control in both forward and reverse directions (5 to 6 times). Check the oil level and add oil as required after stopping the engine.

4.It may be necessary to repeat Steps 2 and 3 until all the air is completely purged from the system. When the transaxle operates at normal noise levels and moves smoothly forward and reverse at normal speeds, the transaxle is considered purged.

5.After the vehicle has been used two times, the oil level should be checked while the oil is cold and adjusted accordingly.

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Husqvarna MZ6125C / 968999749, MZ6125BF / 968999721, MZ7227 / 968999719 Hydraulic Pump, Fluid Change, Purging Procedures
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MZ6125, MZ7227, MZ5225BF, MZ6125BF, MZ5225C, MZ6125C, MZ25, MZ5225, MZ5225 / 968999717, MZ25 / 968999780, MZ5225C / 968999748, MZ6125 / 968999718 specifications

Husqvarna, a name synonymous with outdoor power equipment, has produced a range of high-performance zero-turn mowers that cater to both residential and commercial users. The models MZ7227 (968999719), MZ6125C (968999749), MZ25 (968999780), MZ6125BF (968999721), and MZ6125 (968999718) stand out for their exceptional engineering, innovative technologies, and user-focused features.

The Husqvarna MZ7227 is a robust zero-turn mower powered by a durable engine designed for high-performance mowing. Its 27 horsepower engine provides ample power for tackling tough grass and uneven terrain. The MZ6125C and MZ6125, both equipped with a 25 horsepower engine, offer a balance of efficiency and performance, making them suitable for both residential and light commercial applications. The MZ25, though compact, boasts a solid build and competent power delivery, perfect for those with smaller lawns.

One of the notable features across these models is the cutting deck. They come with a heavy-duty fabricated cutting deck that ensures a professional-looking finish. The innovative air induction technology enhances airflow within the deck, resulting in even grass cutting. Users will appreciate the ability to adjust the cutting height easily, accommodating various lawn types.

Comfort is also a priority in Husqvarna's design. These mowers boast high-back seats with armrests designed for extended use without sacrificing comfort. The ergonomic controls are intuitively placed, allowing for efficient operation. The models are equipped with a foot-operated deck lift, making height adjustments quick and hassle-free.

Another critical feature is the hydrostatic transmission. This technology allows for smooth and straightforward speed adjustments, offering exceptional maneuverability when navigating around obstacles. The zero-turn radius design is excellent for achieving precise turns, making mowing around trees and flower beds effortless.

In terms of durability, Husqvarna has built these mowers with premium materials, ensuring longevity and reliability even under strenuous conditions. The reinforced chassis and heavy-duty wheels provide stability, contributing to the overall handling of the machines.

Lastly, maintenance is straightforward with these mowers. Accessible maintenance points and a belt-driven transmission reduce wear and tear, extending the life of the machine. With their combination of power, performance, and user-oriented features, the Husqvarna MZ series mowers, including the MZ7227, MZ6125C, MZ25, MZ6125BF, and MZ6125, are excellent choices for anyone looking to invest in quality lawn care equipment. They promise to deliver superior cutting performance and a comfortable mowing experience for every user.
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