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
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.
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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
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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
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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
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assEMbly diagraM
7
11
8
6
1
9
3
2
4
5
10
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.
SKU 94873
for technical questions, please call 1-800-444-3353.
Page 6
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