Setting Model G0748 Spindle Speed

The Model G0748 has variable spindle speeds from 60 to 4200 RPM. Setting the spindle speed involves 1) Selecting the spindle speed range, and 2) using the variable-speed handwheel to select the spindle speed.

To set the Model G0748 spindle speed:

1.Make sure the spindle is completely stopped.

2.pull the spindle speed range selector knob (see Figure 32) out, position the selector in the high or low position, then release the knob to seat the knob pin in the detent.

Note: If it is difficult to move the range selec- tor, rotate the spindle by hand to help mesh the gears until the selector moves freely.

Spindle Speed

Range Selector

Figure 32. Model G0748 spindle speed selector.

3.Use the spindle switch to start spindle rota- tion.

For the Model G0748 ONLY, always make sure that the spindle rotation has started and is at a constant speed before using the variable-speed handwheel to adjust the spindle speed. Otherwise, the moving parts inside the belt housing could be damaged and void the warranty.

4.Slowly rotate the speed handwheel shown in Figure 33 until the desired speed is dis- played in the speed indicator window for the speed range selected.

High-Low Range
Speed Indicator	Variable-Speed
	Handwheel

Figure 33. Model G0748 variable-speed

controls.

Model G0747/G0748 (Mfg. Since 8/12)

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G0747 and G0748 specifications

The Grizzly G0747 and G0748 are advanced metal lathes designed for precision machining and versatility, catering to both amateur machinists and professional workshops. These machines stand out in the realm of metalworking equipment, thanks to their robust construction and innovative features.

One of the key attributes of the G0747 and G0748 is their solid cast iron construction, which provides excellent vibration dampening during operation. This enhances stability and precision, crucial for producing high-quality machined parts. Equipped with powerful motors, both models are capable of handling a wide range of materials, from aluminum to harder metals like steel.

The G0747 features a variable speed drive system, allowing users to adjust the spindle speed based on the project at hand. This flexibility is beneficial for tasks that require different cutting speeds, enabling machinists to optimize cutting performance and tool longevity. Its variable speed output ranges, alongside smooth torque delivery, make it ideal for intricate turning operations.

On the other hand, the G0748 includes an advanced digital readout (DRO) system. This feature provides real-time feedback on the machine's position and speed, significantly improving accuracy in measurements during machining tasks. The DRO system allows operators to set precise limits and keep track of their progress, essential for complex projects where exact dimensions are critical.

Both lathes are equipped with a user-friendly interface, making them accessible for beginners while still offering advanced functionalities that seasoned professionals appreciate. They include multiple tooling options, allowing for an expansive range of machining techniques including turning, threading, and drilling.

Moreover, the G0747 and G0748 come with a comprehensive assortment of accessories, such as different types of chucks and tool holders, which further extends their capabilities. The ease of changing tooling and quick setup times are significant advantages for shops aiming for efficiency and versatility in their operations.

In conclusion, the Grizzly G0747 and G0748 metal lathes are exemplary units that balance power, precision, and user-friendliness. Their advanced features, such as variable speed capabilities and digital readouts, equip machinists with the tools necessary to produce exceptional work. Whether for hobbyists or industrial applications, these lathes are built to meet a variety of machining needs with impressive performance and reliability.

Grizzly G0747 and G0748 Setting Model G0748 Spindle Speed, To set the Model G0748 spindle speed

Models: G0747 and G0748