Harbor Freight Tools 42827 User Manual

Geared Head

®

Drill / Mill Machine

Model

Assembly & Operating Instructions

42827 42827

42827

42827 42827

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

Copyright© 2005 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 1-800-444-3353.

SPECIFICATIONS

Motor: 110V/60Hz Single Phase

1.5 HP, 15 Amps

6 Speeds (rpm): 95-175-310-450-850-1500

Motor rpm’s: 1720

Spindle Taper: R8

Spindle Collar: 1.740”

Spindle Stroke: 5”

Spindle to Table: 17-3/4”

INCLUDED ACCESSORIES

5 and 6mm Hex Wrenches

Draw Bar

R-8/JT2 Chuck

FEATURES

1. This machine may be used for surface cutting, drilling, milling, and tapping.

2. The high quality of this machine, and its ease of operation makes it suitable for use by students,
amateurs, and home hobbyists, as well as skilled technicians.

3. Drilling and milling may be done using hand operated feeding, or worm-gear feeding.

4. Many of the adjustable nuts are bronze, for adjusting thread clearance and reducing wear. These
bronze parts also allow screws to rotate smoothly and improve accuracy.

5. The vertical column is very strong and stiff, which makes the machine very stable and improves
accuracy of manufactured parts.

6. The machine head is cast steel, and has been heat-treated, stress-relieved, and precision machined.

7. Machine gears are precision ground for smooth operation.

8. Speeds can be easily changed.

9. Thread tapping operations can be done in either rotation, and working depth can be controlled using a
positive stop gauge.

Drill Cap: 1-1/4”

Face Mill Cap: 3”

End Mill Cap: 3/4”

Tapping Cap: 1/4”

Max. Y-Travel: 6-13/16”

X-Travel: 19-13/16”

Table Dimensions: 27-1/2”L x 9-1/2”W

14 / 17mm Open End Wrench

Slotted Screwdriver

Head Wrench

SAVE THIS MANUAL

You will need the manual for the safety warnings and cautions, assembly instructions, operating procedures,
maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice with this manual.
Write the invoice number on the inside of the front cover. Keep both this manual and your invoice in a safe,
dry place for future reference.

NOTICE
The Warnings, Cautions, and Instructions discussed in this instruction manual cannot
cover all possible conditions and situations that may occur. It must be understood by
the operator that common sense and caution are factors which cannot be built into this
product, but must be supplied by the operator.

Page 2 SKU # 42827

REV 11/06

SAFETY WARNING & CAUTIONS

READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!

1. KEEP WORK AREA CLEAN. Cluttered areas invite injuries.

2. OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit locations.
Don’t expose to rain. Keep work area well lit. Do not use electrically powered equipment in the presence
of flammable gases or liquids.

3. KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let them handle
machines, tools, or equipment.

4. STORE IDLE EQUIPMENT. When not in use, tools must be locked up in a dry location to inhibit
rust. Always lock up tools and keep out of reach of children.

5. DO NOT FORCE THE TOOL. It will do the job better and more safely at the rate for which it was
intended. Do not use inappropriate attachments in an attempt to exceed the tool’s capacities.

6. USE THE RIGHT TOOL FOR THE JOB. Do not use a tool for a purpose for which it was not
intended.

7. DRESS PROPERLY. Do not wear loose clothing or jewelry, as they can be caught in moving parts. Non­skid footwear is recommended. Wear restrictive hair covering to contain long hair. Always wear appropriate
work clothing.

8. USE EYE, EAR AND BREATHING PROTECTION. Always wear ANSI approved impact safety
goggles if you are producing metal filings or wood chips. Wear an ANSI approved dust mask or
respirator when working around metal, wood, and chemical dusts and mists. Use ANSI approved ear
protection when working in a loud or noisy environment.

9. DO NOT ABUSE THE POWER CORD. Protect the power cord from damage, either from impacts,
pulling or corrosive materials. Do not yank machine’s cord to disconnect it from the receptacle.

10. DO NOT OVERREACH. Keep proper footing and balance at all times. Do not reach over or across
running machines.

11. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer performance.
Follow instructions for lubricating and changing accessories. Inspect power cord periodically and, if
damaged, have it repaired by an authorized technician. Inspect all hydraulic seals for leaks prior to use.
Control handle and power switch must be kept clean, dry, and free from oil and grease at all times.

12. REMOVE ADJUSTING KEYS AND WRENCHES. Be sure that keys and adjusting wrenches are
removed from the tool or machine work surface before operation.

13. AVOID UNINTENTIONAL STARTING. Be sure that you are prepared to begin work before turning the
start switch on.

Page 3 SKU # 42827

14. STAY ALERT. Watch what you are doing. Do not operate this machine when you are tired.

15. DO NOT OPERATE THIS MACHINE WHILE UNDER THE INFLUENCE OF ALCOHOL, DRUGS,
OR PRESCRIPTION MEDICINES.

16. CHECK FOR DAMAGED PARTS. Before using any tool, any part that appears damaged should be
carefully checked to determine that it will operate properly and perform its intended function. Check for
alignment and binding of moving parts, any broken parts or mounting fixtures, and any other condition that may
affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified
technician. Do not use the tool if any switch does not turn on and off properly.

17. REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only identical replacement parts
intended for use with this tool. Replacement parts are available from Harbor Freight Tools. Use of any other
parts will void the warranty.

18. USE THE RIGHT TOOL FOR THE JOB. Do not attempt to force a small tool or attachment to do the
work of a larger industrial tool. There are certain applications for which this tool was designed. Do not modify
this tool and do not use this tool for a purpose for which it was not intended.

19. MAINTENANCE. For your own safety, maintenance should be performed regularly by a qualified
technician.

SPECIAL WARNINGS WHEN USING THIS DRILLING / MILLING MACHINE

Using this machine may create special hazards.

Take particular care to safeguard yourself and those around you.

Electrical Safety. Never operate any tool if there is an electrical hazard. Never operate an electrical
tool in wet conditions. Never operate a tool with an improper electrical cord or extension cord. Never operate
an electrical tool unless you are plugged into a properly grounded outlet, which
60 Hz. We recommend you use a circuit which is protected by an appropriate circuit breaker.

Ejected Material. Use safe practices to avoid injury from ejected material. Because milling tools and
workpieces turn at high speed, there is a danger of being injured by materials that may be ejected. Always wear
ANSI-certified eye protection. Never attempt to machine any item if it is not adequately held. Always stand to
one side of the plane in which the materials are spinning, to avoid being hit if an item is ejected. Never allow
bystanders to be in the proximity of this machine while in operation.

Entanglement. Use extreme caution to prevent loose materials from being caught in the machine.
Never operate this machine with loose clothing, long hair, jewelry, or other items which may become caught in
the tools or workpieces. In case of entanglement, press the OFF switch immediately.

NOTICE: No list of warnings can be all inclusive. The operator must supply common
sense, and operate this tool in a safe manner.

supplies 110 Volts at

Page 4 SKU # 42827

FEATURES AND CONTROLS OF THE #42827 DRILL / MILL MACHINE

Figure 1.

1. Column

2. Head Collar

3. Head Collar Lock Bolt

4. Head Crank

5. Lock Nut

6. Oil Drain Plug

7. Table Feed Wheel

8. Travel Stop

9. Knob

10. Red Bush Button

11. Green Push Button

Page 5 SKU # 42827

12. Leaf Screw

13. Cross Table Feed Wheel

14. Positive Depth Stop Gauge

15. Spindle Micro Feed Handle

16. Spindle Feed Handle

17. Speed Lever

18. Air Flow Plug

19. Oil Filler Plug

20. Head Body

21. Arbor Bolt Cover

22. Scale

UNPACKING AND INSTALLATION

1. Remove protective crating and skids carefully. In the event of damage in transit, contact Harbor Freight
Tools immediately.

2. Read the owner’s manual and become familiar with the parts and controls on the drawings before
using this machine, as familiarity with the controls will enhance your ability and safety in using it.

INSTALLATION

1. It is important that the machine be located on a hard, solid, level floor. Find a location that
supplies easy access to 110 Volt electrical service. Make sure this machine is located in a well
lighted and well ventilated area. The floor should be resistant to vibration.

2. Before moving the machine, be sure the head is fixed on the column. Before moving the machine, lower
the head as much as possible to lower the center of gravity. When moving the machine be careful to
keep it balanced, and not allow it to topple over.

3. To set the machine on a solid concrete foundation, it’s advisable to apply a little grout to touch up
any uneveness in the concrete in order to get a solid foundation at all points.

4. When setting machine on a floor that has any surface irregularities, shims should be used to
correct this condition to the greatest extent possible.

5. There are 4 holes in the base for mounting the machine permanently to a smooth, solid, and level floor.

CLEANING AND LUBRICATION

1. Thoroughly clean the machine with a commercial degreaser.
Do not use gasoline, kerosene or other flammable liquids.
Avoid getting solvent on rubber parts, or into the electrical
controls or motor.

2. After cleaning, coat all bright metal with a light lubricant to
prevent corrosion.

3. Lubricate all points indicated in Figure 2 with a 10 weight
machine oil.

4. Remove the oil filler plug and fill the reservoir with heavy motor
oil, until the oil level reaches the middle of the oil fluid level
indicator. Replace the plug.

LEVELING THIS MACHINE

1. Before operation, it is critical to level the work surface both
lengthwise and crosswise, using a precision level. It will not be
possible to maintain accuracy of machined parts if the mill is not
properly leveled to start.

Figure 2. Lubrication Points.

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