Pittsburgh 63730 Assembly instructions

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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2017 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product
described herein. Tools required for assembly and service may not be included.
Read this material before using this
product. Failure to do so can result in
serious injury. SAVE THIS MANUAL.

Page 2 For technical questions, please call 1-888-866-5797. Item 63730
Specifications
Scale Units Inches
Accuracy ±0.001"
Measuring Capabilities Inside / Outside / Depth / Step
Scale Type Mechanical Dial
Important Safety Information
1. This product is not a toy. Do not allow
children to play with or near this item.
2. Wear ANSI-approved safety
goggles during use.
3. Keep work area clean and well lit.
4. Do not operate when tired or
when under the influence of
alcohol, drugs or medication.
5. Use as intended only.
6. Inspect before every use; do not use
if parts are loose or damaged.
7. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact Harbor
Freight Tools for a replacement.
Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section
at the beginning of this document including all text under subheadings therein
before set up or use of this product.
1. Make sure upper and lower
Outside Diameter Jaw (2) faces
are clean. See Figure A.
2. Loosen Slide Scale Lock (6) by turning it
counterclockwise.
3. Use Thumb Roll (1) to close
Outside Diameter Jaws (2).
4. Sliding Index Edge (7) should line up at “0”.
5. To adjust (if needed), loosen
the Dial Adjustment Lock (3) by
turning it counterclockwise.
6. Set the Dial (5) by turning the Dial
Adjustment (4) either clockwise
or counterclockwise until the
Dial Needle points to “0”.
7. Lock the Dial (5) on its “0” setting by
tightening the Dial Adjustment Lock (3)
clockwise. The Caliper is ready to use.
2
6
1
7
3
5
4
Figure A

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8. To read the Scale and Dial, the Sliding
Index Edge features readings in
inches (0.001" and 0.010" per call-
out segment). See Figure B.
Sliding
Index Edge
Dial
Figure B
9. Read the Scale Measurement Point in
inches and tenths of inches (such as 0.5").
Then read the Dial Needle on the Dial in
thousandths of an inch (such as .081").
10. Combine the two readings for
a final reading of 0.581".
11. To use the Caliper to measure the
outside diameter of an object, close the
Outside Diameter Jaws over the object,
making sure that the rests squarely
on the Jaws. See Figure C, below.
Figure C
12. To use the Caliper to measure the inside
diameter of an object, see Figure D, below.
Figure D
13. To make a depth measurement
of an object, see Figure E.
Figure E
14. To measure the step of an
object, see Figure F, below.
Figure F

Parts List and Diagram
Part Description Qty
1 Thumb Roll 1
2 Outside Diameter Jaw 2
3 Dial Adjustment Lock 1
4 Dial Adjustment 1
5 Dial 1
6 Slide Scale Lock 1
7 Sliding Index Edge 1
8 Inside Diameter Jaw 2
9 Step Measuring Surface 1
10 Depth Measuring Blade 1
810
1
2
6
4
5
3
7
9
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes
only, and are not available individually as replacement parts.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND
ASSEMBLY DIAGRAM IN THIS DOCUMENT AS A REFERENCE TOOL ONLY. NEITHER
THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR
WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE
ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR
HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR
ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.