Grizzly G7948, G7947 Downfeed Handles Belt Cover Knob, To install the downfeed handles

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Tang-Side

Up

Figure 16. Seating arbor into chuck.

4.Slide the arbor into the spindle socket while slowly rotating the drill chuck. The socket has a rectangular pocket where the tang (or flat portion of the arbor shown in Figure 16) fits into.

5.Seat the chuck with a rubber mallet, as shown in Figure 17.

DO NOT use a steel hammer on the drill chuck to seat the arbor into the spindle. You will damage the chuck and/or spindle, which may make them unusable or unsafe.

Downfeed Handles &

Belt Cover Knob

Components and Hardware Needed:

Qty

Downfeed Handles

3

The downfeed handles must be installed to prop- erly operate the drill press.

To install the downfeed handles:

1.Thread the handles into the spindle hub, as shown in Figure 18, and tighten.

2.Remove the screw that fastens the belt cover in place and install the belt cover knob in its place (see Figure 18 for location).

 

Belt Cover

Spindle

Knob

 

Hub

 

Figure 18. Downfeed handles and belt cover

knob installed.

Figure 17. Seating arbor and chuck into spindle.

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G7947/G7948 12 Speed Floor Drill Press

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Contents Model G7947/G7948 G7947 G7948Page Table of Contents Warranty and Returns Introduction ForewordContact Info Machine Data Sheet Other Related Information G7948 Machine Data Sheet 17-1/2 Identification Table Height Crank Raises/lowers tableColumn Lock Lever Locks table height Safety Safety Instructions for MachineryAlways Lock Mobile Bases if Used Before Operating Machinery Safety for Drill Presses Circuit Requirements 110/220V OperationAmperage Draw Circuit RequirementsGrounding Extension Cords110V Operation 220V OperationSET UP Set Up SafetyItems Needed for Set Up UnpackingInventory Hardware Recognition Chart Clean Up Site ConsiderationsFloor Load Working ClearancesTo install the table support Column and BaseTable Support Components and Hardware Needed QtyHandles and lock levers installed Assistance when moving HeadstockHeadstock is Very Heavy. You Must Drill Chuck & Arbor To assemble the drill chuck and mount it toSpindle To install the downfeed handles Downfeed Handles Belt Cover KnobTo install the table To install a light bulb in the drill pressLight 110V Only Test Run Floor Mounting Mobile Base MountingRecommended Adjustments Factory adjustments that should be verifiedTo make and use the base plate Operation Safety Installing/Removing To install a drill bitOperations To remove a drill bitUsing the Drill Bit Speed Chart Choosing SpeedsLubrication Suggestions Changing Speeds To change speedsDrilling Depth Stop Adjusting Table Table HeightTable Rotation Table TiltArbor Removal To remove the drill chuck and arborAccessories G5753-Drill Press ViseG3640-Power Twist V-Belt 1⁄2 x H1300 H1298 G7984 H2347 H0736Maintenance Service About ServiceTroubleshooting Motor & ElectricalPulley is loose Remove pulley Drill Press Operations Depth Stop Feed Shaft Spring Calibration Loosening cover and jam nut Power and light switch assembly Electrical ComponentsG7947/G7948 Wiring Diagram G7947 Stand/Table Breakdown G7947 Headstock Breakdown G7947 Parts List DescriptionPVA26 G7948 Stand/Table Breakdown G7948 Headstock Breakdown G7948 Parts List PVA29 Warranty and Returns Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAPage Call Today For a Free Full Color Catalog

G7947, G7948 specifications

The Grizzly G7948 and G7947 are powerful, professional-grade milling machines designed for precision metalworking. These models cater to the needs of machinists and hobbyists alike, combining innovation with robust features ideal for various milling tasks.

The Grizzly G7948 is a vertical mill with a large working table, allowing users to handle bigger workpieces efficiently. It features a 2 HP motor, providing a spindle speed range from 50 to 3,000 RPM, enabling operators to tackle a wide range of materials and applications. The G7948’s dovetail column ensures stability and rigidity, minimizing vibrations during operation, which is crucial for achieving precision in milling tasks.

On the other hand, the Grizzly G7947 is a versatile combination of a lathe and a mill, perfect for those looking to maximize functionality in a smaller workspace. It also boasts a robust 1 HP motor, allowing for smooth operation with adjustable spindle speeds, enhancing its versatility. The G7947 is particularly user-friendly, featuring a quick-change tool post that facilitates faster tool swapping and changeovers, which is a significant advantage when working on multiple projects.

Both models come equipped with advanced features such as a digital readout (DRO) system that aids in precision measurements. The DRO provides real-time feedback on the machine's positioning, helping eliminate guesswork and ensuring accuracy. Additionally, the machines' power feed for the table enhances efficiency, making it easier for users to execute repetitive tasks without the strain of manual cranking.

Another notable characteristic of the Grizzly G7948 and G7947 is their user-friendly controls, designed with ergonomics in mind. The intuitive layout ensures that operators can easily navigate through the machine’s settings, allowing for quicker setup times and smoother workflow.

Lastly, the sturdy construction of both milling machines means they are built to withstand rigorous use, making them reliable choices for both industrial applications and serious hobbyists. These models exemplify Grizzly's commitment to quality and performance, making them exceptional additions to any workshop.
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