Harbor Freight Tools 44991 operating instructions Assembly, Operation

Models: 44991

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Assembly

3.An optional oil pan can be placed under the machine before it is mounted to the table.

4.Before operation, loosen the slide, worktable, and drill-mill spindle. They were locked for shipping.

5.Remove all packing material and clean machine with nonflammable solvent. Oil the machine according to the lubrication requirements before running the machine.

Assembly

1.Install the Chuck.

-Thoroughly clean the tapered hole in the Chuck (164) and the Spindle (79) shaft of all dirt, grease, oil, and protective coatings (paint thinner may be necessary).

-Slide the Chuck onto the Spindle shaft.

-Turn the Chuck sleeve clockwise and open the jaws completely.

-Tap the nose of the Chuck lightly with a piece of wood to securely set the Chuck.

2.If necessary, screw the Handles into the Small Hand Wheels.

3.Check the angle of the Vertical Support (68) for true vertical. Check all bolts for tightness.

Operation

This Mini Milling/Drilling Machine is capable of machining metal and nonmetallic stock by cutting, drilling, and milling. It can cut circular surfaces, both inside and out, cones, mill planes or grooves, and other cutting functions depending on the tools used.

The machine consists of the following main components as shown in the photo below.

Electrical Box (69)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor (127)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vertical Support (68)

 

 

 

 

 

 

 

 

 

 

 

 

 

Small (fine) Feed Wheel (93)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance Mechanism Assy.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Headstock and Spindle Box (49)

Emergency Stop Switch (37)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Speed Control Knob (134)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Limit Block (65)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connecting Strut (72)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Longitudinal Feed Hand Wheel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Working Table (19)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Saddle (35)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Base (1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cross Feed Hand Wheel (5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SKU 44991

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Harbor Freight Tools 44991 operating instructions Assembly, Operation