Harbor Freight Tools Marine Instruments 94873 User Manual

ElEctronic borE  
gaugE 1.4”~ 6”  
Model 94873  
assEMbly and opEration instructions  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Visit our website at: http://www.harborfreight.com  
to prEVEnt sErious injury, rEad and undErstand  
all warnings and instructions bEforE usE.  
©
®
Copyright 2007 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 or replacement parts, please call 1-800-444-3353.  
 
unpacKing  
When unpacking, check to make sure that the item is intact and undamaged. If any  
parts are missing or broken, please call Harbor Freight Tools at the number shown on the  
cover of this manual as soon as possible.  
assEMbly instructions  
note: For additional information regarding the parts listed in the following pages, refer to  
the Assembly Diagram near the end of this manual.  
5
4
3
figure 2a  
figure 2b  
1.  
2.  
3.  
Attach the Display (5) into the Grip (3). The face of the Display (5) turns 360°.  
Lock the Display (5) in place with the Locking Screw (4). (see figure 2a).  
Select the Anvil, or combination of an Anvil (7) and Washers (8), as needed and  
install on Head (1). (see figure 2b)  
4.  
Tighten the Anvil Locking Nut (6) snugly. (see figure 2b)  
note: Do not over tighten the Anvil Locking Nut (6).  
SKU 94873  
for technical questions, please call 1-800-444-3353.  
Page 3  
 
opEration instructions  
unit  
ZEro/on  
ran  
tol  
abs/sEt  
1.  
Press the ZERO/ON Button to turn on the Electronic Bore Gauge. When turning  
off, hold the ZERO/ON Button down until the tool shuts down.  
2.  
3.  
4.  
5.  
Select INCH or METRIC modes by pressing the UNIT Button.  
Use the ABS/SET button to set a specific measurement.  
The RAN button will measure the minimum range of the bore being measured.  
The TOL button will yield the tolerance range of the bore being measured.  
calibration using a Micrometer, and Measuring a bore:  
1.  
2.  
3.  
Set the outside micrometer (not included) to the exact dimension to be measured.  
Tighten the Lock Nut located on the  
micrometer.  
Place the Electronic Bore Gauge  
measuring contacts across the micrometer  
(not included). (see figure 3)  
please note:  
Tap the RAN Button twice. Sweep the  
Electronic Bore Gauge back and forth in  
the micrometer (not included) to set the  
minimum data. (see figure 3)  
Micrometer sold  
separately; it is  
not included with  
Electronic Bore  
Gauge.  
4.  
5.  
Remove the Electronic Bore Gauge and  
note the minimum data on the display.  
Tap the RAN Button twice to zero the  
indicator.  
figure 3  
SKU 94873  
for technical questions, please call 1-800-444-3353.  
Page 4  
 
6.  
7.  
Start measuring the work piece. Tap the RAN Button twice, note the display symbol.  
Sweep the Electronic Bore Gauge back and forth in the bore; note the minimum  
data on the display.  
To calculate the dimension of the work piece: take the dimension of the outside  
micrometer and subtract the minimum data of the work piece and the minimum  
data of the micrometer.  
for common usage:  
1.  
2.  
Insert the Electronic Bore Gauge into the bore to be measured. Press the ZERO  
Button. This will initialize the standard mode. Gently sweep the Electronic Bore  
Gauge back and forth in the test bore to lock on to the diameter.  
Remove and then insert the Electronic Bore Gauge into the next test bore. Follow  
the procedure in step #1 and repeat the measuring steps in this section.  
plEasE rEad tHE following carEfully  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS LIST AND ASSEMBLY  
DIAGRAM IN THIS MANUAL 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.  
parts list  
part  
description  
Qty  
part  
7
description  
Anvils (various sizes)  
Washers  
Qty  
14  
3
1
2
3
4
5
6
Head  
Shaft  
Grip  
2
1
1
1
1
1
8
9
Guide Device  
1
Locking Screw  
Display  
10  
11  
Contact Point  
1
Large Anvil Fitting  
1
Anvil Locking Nut  
SKU 94873  
for technical questions, please call 1-800-444-3353.  
Page 5  
 
assEMbly diagraM  
7
11  
8
6
1
9
3
2
4
5
10  
record products 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.  
SKU 94873  
for technical questions, please call 1-800-444-3353.  
Page 6  
 

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