M48 Tank

4.23.When the fluid is between 160-210 deg. f.

(71-90 deg. c.) apply full forward drive pressure to the lap bar with the engine running at full speed (3600 RPM) while an assistant closes the valve to the point where pressure reaches 300

PSI (21 Bar.). See Figure 4.23.

CONTROL

10 GPM CONSOLE INSET:

3600 RPM

SPINNING

FLOW

300 PSI CLOSE VALVE TO BUILD PRESSURE

Figure 4.23

NOTE: It may be necessary to over-shoot 300 PSI slightly, then open the valve to reduce pres- sure to 300 PSI.

4.24.Take note of the reading on the flow meter por- tion of the test kit when the pressure gauge reads 300 PSI.

4.25.Continue closing the valve until the pressure reading reaches 1,100 PS I (76 bar.). Take note of the flow reading. See Figure 4.25.

9 GPM

1100 PSI

VALVE CLOSED

 

FURTHER

Figure 4.25

4.26.Subtract the 1,100 PSI flow reading from the 300 PSI flow reading. The resulting figure is called “flow droop”.

4.27.Interpretation: flow droop greater than 1.5 GPM indicates a pump that is not performing as well as it should.

NOTE: A blocked filter may account for some loss of performance.

4.28.Within the two year Cub Cadet Commercial war- ranty period, replace the pump if it does not per- form as specified and all other factors have been eliminated.

4.29.If a hydro pump requires repair, refer to Hydro- Gear publication “BLN-51337” for complete ser- vice instructions.

4.30.If the hydro pump and all other factors are O.K., replace the hydro motor.

NOTE: The hydro motor is not serviceable. Replace it as a unit if it fails.

5.REPLACING THE HYDRO PUMP

5.1.If the cutting deck is currently on the unit, remove it.

5.2.Safely lift and support the rear of the tank.

5.3.Remove the rear wheels using a 3/4” socket.

5.4.Tilt the seat up, and disconnect the negative bat- tery cable.

5.5.Remove the screen that covers the opening over the cooling fans on the hydro pump to be removed using a 3/8” wrench. See Figure 5.5.

REMOVE DEBRIS SCREEN

Figure 5.5

6

Page 9 Page 11
Page 10
Image 10
Cub Cadet M48 service manual Replacing the Hydro Pump
Page 9 Page 11

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.
Top Page Image Contents