NOTE: The test can be performed at either line between the pump and the motor. The top line on the motor is the in line from the pump when driving forward. The linkage has more travel in forward than it does in reverse, so the test is most easily done on the top line of the pump, driving the pump in the forward direction for- ward.

4.11.Connect the flow meter end of the test kit to the hydro motor.

4.12.Remove the plug from the line coming from the outboard port on the hydro pump. Use the 18” test kit line to connect the pressure gauge end of the hydraulic test kit to the line coming from the hydro pump. See Figure 4.12.

Figure 4.12

4.13.Tighten all the fittings.

4.14.Insure that no unsafe conditions will result from starting the engine and operating the drive sys- tem.

CAUTION: The technician will be exposed to moving parts during this procedure. They should not reach past or around any moving parts during this test, nor should they place themselves in any position where a loss of foot- ing or balance might bring them into contact with rotating components. Loose hair or garments should be secured to avoid the possibility of entanglement with rotating components.

M48 Tank

4.15.Remove the stop bolt that sets the end of the travel of the lap bar that controls the hydro pump to be tested. See Figure 4.15.

JAM NUT

STOP BOLT

Figure 4.15

4.16.Confirm that the valve on the test kit is fully open.

4.17.Start the engine and purge the hydraulic sys- tem as follows:

4.18.Cycle the lap bar from full forward to full reverse 5 times at 10 second intervals.

4.19.Close the relief valve on the hydro pump and repeat the cycling process to purge any remain- ing air from the system.

4.20.Check for and repair any leaks.

4.21.Check the fluid level in the hydraulic reservoir. Top it up if necessary.

4.22.Continue to operate the drive system to warm-up the hydraulic fluid.

NOTE: Performing the test with cold fluid will make a significant difference in the flow readings obtained. The test will not be valid.

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Cub Cadet M48 service manual JAM NUT Stop Bolt
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M48 specifications

Cub Cadet has long been a name synonymous with quality and reliability in outdoor power equipment. Among its impressive lineup are the M48, M72, M54, 48, and 60 models, each designed to provide efficient and effective lawn maintenance solutions for both residential and commercial users. These zero-turn mowers embody advanced technology and engineering excellence that cater to the diverse needs of landscapers and homeowners alike.

The M48 model is compact yet powerful, featuring a 48-inch cutting deck that allows for agile maneuvering in tight spaces. It is powered by a robust engine designed for durability and longevity, ensuring that users can tackle their mowing tasks with ease. The M72, on the other hand, elevates performance with a 72-inch cutting deck, making it ideal for larger properties and commercial applications. Both models are equipped with a hydrostatic transmission, delivering smooth acceleration and precise control while reducing the fatigue often associated with extended mowing sessions.

Cub Cadet's 48 and 60 models focus on providing versatility and performance. The 48-inch deck allows for a perfect balance between speed and accuracy, making it suitable for various terrains. Meanwhile, the M60 model enhances productivity with its 60-inch cutting deck, optimized for efficiency without compromising on quality. These mowers are engineered with cutting-edge technology, including Cub Cadet's signature SmartJet technology, which ensures superior grass cutting and a cleaner, healthier lawn.

All models in this series are equipped with a comfortable operator platform, ensuring ease of operation over long periods. Ergonomically designed seats provide excellent support and minimize user fatigue, contributing to a more enjoyable mowing experience. In addition, the user-friendly control panel and intuitive steering levers allow for quick adjustments and enhanced maneuverability.

Durability is a hallmark of Cub Cadet mowers. Constructed with heavy-duty materials, these machines are engineered to withstand the rigors of regular use while providing outstanding performance. Moreover, select models come with advanced features such as LED headlights for improved visibility during early morning or late evening mowing sessions.

Additionally, the models benefit from a robust warranty program, reflecting Cub Cadet's commitment to customer satisfaction and product reliability. Whether you're a weekend warrior caring for your lawn or a professional landscaper managing extensive properties, Cub Cadet's M48, M72, M54, 48, and 60 mowers deliver the power, performance, and comfort that users expect from a leading brand in outdoor equipment. With these innovative machines, maintaining a pristine lawn has never been easier or more efficient.
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