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Page 6

SKU 44991

Checks before Operation

1.

Turn on the machine by lifting the cover and pulling out the Emergency Stop Switch

(137).

2.

Turn the Speed Control Knob (134) and verify spindle speed changes.

3.

Verify that the spindle is rotating clockwise.

4.

Operate the Longitudinal Axis (Working Table), Cross Axis (Saddle Seat), and Vertical

Axis (Vertical Support), and verify their proper operation and movement.

Caution: Avoid injury to you or damage to machine. Unplug the power cord from the
electrical outlet before performing any adjustments, tool replacement, or maintenance.

Installation of the Taper Shank Cutter

1.

Pull off the Protective Cover (126).

2.

Wipe the spindle sleeve and taper of all dirt and grease.

3.

Unscrew Clamp Bolt (101) and remove Dust Guard

(100).

4.

Place the Taper Shank (B) into the Spindle (79) sleeve.

Cover the Cutter (C) (not included) end with an oil cloth

to protect hands and machinery.

5.

Insert the Fixing Pin (accessory D) on the right side of

the Spindle sleeve. Refer to page 4.

6.

Using the #14 open end wrench (accessory G), tighten

(clockwise) the Spindle draw bar (A) to lock in the Taper
Shank Cutter into the Spindle.

7.

Pull out the Fixing Pin and replace the Protective Cover.

Removal of the Taper Shank Cutter

1.

Pull off the Protective Cover (126).

2.

Insert the Fixing Pin (accessory D) on the right side of the Spindle sleeve.

3.

Using the #14 open end wrench (accessory G), loosen (counterclockwise) the Spindle

draw bar (A) to unlock the Taper Shank Cutter in the Spindle.

4.

Using a plastic hammer, gently tap the Taper Shank (B) until it breaks free.

Place a cushion on the Working Table (19) to protect the assembly if it falls out.

5.

Replace the Taper Shank Cutter with the Drill Chuck (or other tool) if desired.

Travel Adjustment

Adjusting the Limit Block (65) can control the travel of the Spindle Box.

1.

Loosen Handle (30) attached to the Limit Block (65).

(126)

(A)

(101)

(100)

(B)

(C)

(D)

(G)

Note: For illustration
pur poses only.  Only
Chuck with Taper Shank
(164) is included.

REV 12/04

Summary of Contents for 44991

Page 1: ...ND OPERATING INSTRUCTIONS 3491 Mission Oaks Blvd Camarillo CA 93011 Visit our Web site at http www harborfreight com Copyright 2000 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools For technical questions and replacement parts please call 1 800 444...

Page 2: ...e and dry place for future reference Safety Warnings and Precautions WARNING When using tool basic safety precautions should always be followed to reduce the risk of personal injury and damage to equipment Read all instructions before using this tool 1 Keep work area clean Cluttered areas invite injuries 2 Observe work area conditions Do not use machines or power tools in damp or wet locations Don...

Page 3: ...eck that keys and adjusting wrenches are removed from the tool or machine work surface before plugging it in 13 Avoid unintentional starting Be sure the switch is in the Off position when not in use and before plugging in 14 Stay alert Watch what you are doing use common sense Do not operate any tool when you are tired 15 Check for damaged parts Before using any tool any part that appears damaged ...

Page 4: ...conditions and situations that may occur It must be under stood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator Unpacking When unpacking check to make sure the following parts and accessories are included ITEM DESCRIPTION A Large Wrench B 13 mm Drill Chuck with Taper Shank C Oil Bottle D Fixing Pin E L Hex Wrenc...

Page 5: ...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 c...

Page 6: ... and machinery 5 Insert the Fixing Pin accessory D on the right side of the Spindle sleeve Refer to page 4 6 Using the 14 open end wrench accessory G tighten clockwise the Spindle draw bar A to lock in the Taper Shank Cutter into the Spindle 7 Pull out the Fixing Pin and replace the Protective Cover Removal of the Taper Shank Cutter 1 Pull off the Protective Cover 126 2 Insert the Fixing Pin acces...

Page 7: ...2500 RPM Faster speeds are generally used when milling softer materials and drilling small holes And slower speeds for milling harder material and drilling larger holes 3 Using a fixture not supplied mount the workpiece to the Working Table 19 4 Adjust the Limit Block 65 height This will enable Spindle movement to the desired cut and disable an over cut which could damage the workpiece fixture or ...

Page 8: ...olts and handles for tightness 4 Store cutting tools in a wooden box or other moisture proof package 5 Cover the machine when not in use 6 Sharpen cutting tools as soon as they become dull 7 Always keep the taper shank clean 8 Store all tools and accessories in a clean and dry location near the machine 9 Always use the supplied tools and wrenches to make repairs and adjustments PLEASE READ THE FOL...

Page 9: ...Page 9 SKU 44991 Parts List NOTE Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts 4 REV 03 05 ...

Page 10: ...Page 10 SKU 44991 with REV 11 02 ...

Page 11: ...Page 11 SKU 44991 Longitudinal Y Axis and Cross X Axis Assembly Drawing ...

Page 12: ...Page 12 SKU 44991 Vertical Z Axis Assembly Drawing ...

Page 13: ...Page 13 SKU 44991 Spindle and Gear Box Assembly Drawing ...

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