Dirt Devil 42433 User Manual

®

BRASS COMPASS

(LARGE)

42433

ASSEMBLY & OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web Site at www.harborfreight.com

Copyright© 2004 by Harbor Freight Tools®. All rights reserved. No por tion 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.

REV 01/05

THANK YOU for choosing a HARBOR FREIGHT TOOLS product. For future reference, please

complete the owner’s record below:

Model

______________ Serial No._____________ Purchase Date_______________

SAVE THE RECEIPT, WARRANTY AND THESE INSTRUCTIONS. It is important that you read the
entire manual to become familiar with the unit BEFORE y ou begin assembly.

Technical Specifications

Dimensions: 3-1/2” W x 3-1/8” D x 1-1/2” H
Mirror Dimensions: 2-1/4”
Features: Mirror, Sine Chart, 2 levels and Spyhole

Safety Warnings and Precautions

WARNING: When using product, basic safety precautions should always be followed to
reduce the risk of personal injury and damage to equipment.

Read all instructions before using this product!

1. Keep work area clean. Cluttered areas invite injuries.

2. Observe work area conditions. Keep work area well lighted.

3. Store idle equipment. When not in use, the Compass must be stored in a dry location to
inhibit rust. Always lock up products and keep out of reach of children.

4.

Use the right product for the job. There are certain applications for which the Compass was
designed. Do not modify the Compass and do not use the Compass for a purpose for which it
was not intended.

5. Check for damaged parts. Before using any product, any part that appears damaged should
be carefully checked to determine that it will operate properly and perform its intended function.
Check for any broken or damaged parts and any other conditions that may affect its operation.
Replace or repair damaged or worn parts immediately.

6. Replacement parts and accessories. When servicing, use only identical replacement parts.
Use of any other parts will void the warranty.

7. Do not operate product if under the influence of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there
is any doubt, do not operate the product.

8. Do not look into the mirror if it is reflecting bright light such as the Sun.

9. Do not allow children to play with the Compass. Because of its intricate parts, the
Compass can be damaged by improper use.

WARNING: The brass components of this product contain lead, a chemical known to the

State of California to cause birth defects (or other reproductive harm).
(California Health & Safety code 25249.5, et seq.)

SKU 42433 For technical questions please call 1-800-444-3353. Page 2

Warning: 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.

Unpacking

When unpacking your Compass, check to make sure the following parts are included. If any parts
are missing or broken, please call HARBOR FREIGHT TOOLS at 1-800-444-3353.

Operation

This manual explains the parts and basic use of the Compass. It is important that you read the
entire manual to become familiar with the product BEFORE you use the Compass.

We recommend you use a separate book (not included) on Compass usage or Orienteering, to learn
how to use the Compass for more complex applications.

Note: We want to thank Mr. J. Calvert (http://www.du.edu/~jcalvert/personal/pershom.htm) for
providing additional information that was included in this manual. This information was used with his
permission.

The Brass Compass is a type of compass called a “mirror compass.” It has many uses and can be
used for the practical measurement of angles.

All magnetic compasses use the Earth’s magnetic field to supply a reference direction for the
measurement of horizontal angles. This direction has a fundamental significance only when the
directions on the earth’s surface are to be specified, and then the magnetic declination must be
taken into account.

This Compass can determine the magnetic heading of an object and its angle of elevation or declination.
Magnetic declination is the difference between the true geographic north (north pole) and the magnetic
north (in northern Canada). This v a riation fluctuates throughout the world.

The following list will e xplain the uses of the parts of the Compass highlighted in FIGURES 2 and 3.

1. Mirror -This is used to view the compass capsule. It is designed in this way so you can see

your target and get a measurement at the same time. When hinged at 45 degrees, the
mirror can aid in finding the altitude angle measurements while simultaneously looking
at the object.

Note: To get proper directional orientation, the mirror should be used to read the
compass.

2. Graduated Dial - By increments of 1 degree, the dial is graduated 0 degrees through 360

degrees. It is used to read compass bearings.

3. Levels - Allows for altitude and angles measurement as well as plumb leveling.

4. Clinometer Arro ws - The arrow pointing to the ground when the Compass is on its side, is used

in conjunction with the orienting circles to measure angle of inclination.

SKU 42433 For technical questions please call 1-800-444-3353. Page 3