Harbor Freight Tools 42827 Preparing for Milling, Preparing for Tapping, Changing Machine Speed

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Preparing for Milling

1.Adjust the positive stop gauge to its uppermost position.

2.Using the spindle feed handle, adjust the bit to approximately the correct height. Tighten the knob in the center of the spindle feed handle (#16).

3.Set the final vertical adjustment using the micro feed handle.

4.Lock the rack sleeve at this height with the fixed bolt.

Preparing for Tapping

1.Adjust the positive depth gauge to the required position.

2.Loosen the knob in the center of the spindle feed handle.

Adjusting Table Slack and Compensating for Wear

1.Your machine is equipped with gib strip adjustment to compensate for wear and excess slack on cross and longitudinaltravel.

2.Rotate the gib strip bolt slightly counterclockwise to tighten the gib strip. Rotate it slightly clockwise to loosen the gib strip.

3.Adjust the gib strip bolt until very slight drag is felt when moving the table.

Locking the Table Base and Machine Base

1.When milling using the longitudinal feed, it is a good idea to lock the cross feed table to ensure the accuracy of your work. To do this, tighten the small leaf screw located on the right side of the table base.

2.When milling using the cross feed, lock the longitudinal travel. Do this by tightening the two small leaf screws on the front of the table base.

3.Adjustable travel stops are mounted on the front of the table to limit cross travel,and therefore milling length.

Changing Machine Speed

1.Turn the power off.

2.To select the proper speed, move the speed lever to the desired position. See Figure 6.

3.If the gears are not engaged, remove the arbor bolt cover (#21). Rotate the spindle slightly to engage the gears, then

 

replace the arbor bolt cover.

 

 

 

 

Figure 5. Adjusting the Gib Strips.

4.

Recheck the lever setting, and then turn the power on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Levers

L-1

L-2

L-3

H-1

H-2

H-3

 

 

 

rpm @ 60Hz

95

175

310

450

850

1500

 

 

 

 

 

 

 

 

 

 

 

Figure 6. Machine Speed Lever Settings.

Page 8 SKU # 42827

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Contents Geared Head Drill / Mill Machine Specifications Included AccessoriesFeatures Save this ManualPage Special Warnings When Using this Drilling / Milling Machine Features and Controls of the #42827 Drill / Mill Machine Unpackingand Installation InstallationCleaningand Lubrication Leveling this MachineAdjusting the Head Basic OperationPrior to Operation Basic ControlsAdjusting Table Slack and Compensating for Wear Preparing for MillingPreparing for Tapping Locking the Table Base and Machine BaseAdditional Tools and Accessories You Will Find Helpful Installing and Changing ToolsInstalling a Face Mill or Cutter Arbor Trouble Shooting Additional Safety Rules for Drilling and MillingSpecification of the T-Slot Table Travel is not Balanced Electrical Wiring Wiring Diagram Wiring Diagram KEYDaily Maintenance Weekly MaintenanceMonthly Maintenance Yearly MaintenanceGeared Head Drill Mill MACHINE, Head Parts List Please refer to Parts Diagrams on Page 16Drill Mill MACHINE, Parts List Vertical Milling MACHINE, Head Parts Diagram Please refer to Parts List on Pages 14Vertical Milling MACHINE, Base Parts Diagram Please refer to Parts List on