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speciFications
Display
LCD 5 Digits
RPM Range
6 - 99999 RPM
Accuracy
± 0.05% plus 1 RPM
(4) 1.5 VDC (AA) Batteries
Power Source
(not included) or AC adapter
(not included)
Operating
32° - 104° F, < 85% Humidity
Environment
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 document
as soon as possible.
important saFetY
inFormation
1.
When in use, this tool is near rotating parts.
2.
Do not touch rotating parts. Do not wear
loose clothing when working with rotating
parts. Contain hair, jewelry and any item that
may become entangled in rotating part.
3.
This product is not a toy. Do not allow chil-
dren to play with or near this item.
4.
Position batteries in proper polarity and do
not install batteries of different types, charge
levels, or capacities together.
5.
Use as intended only.
6.
Inspect before every use; do not use if parts
are loose or damaged.
7.
Always wear ANSI approved safety goggles
when working.
8.
Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact Harbor
Freight Tools for a replacement.
read the important saFetY
inFormation above before set up
or use of this product.
SKU 66632
For technical questions, please call 1-800-444-3353.
set up
Before first use, remove the clear protective
covering from face of Display.
Battery installation
1.
Before use or when the Low Battery Indica-
tor Symbol appears (See Figure 4, page 3),
install (4) new 1.5 VDC "AA" batteries (not
included).
2.
To install batteries, remove Screw and Bat-
tery Cover on back of Tachometer.
3.
Install 4 "AA" batteries in battery compart-
ment. Be sure to match polarity of batteries
to markings inside battery case.
4.
Replace Battery Cover and Screw. Do not
overtighten.
5.
Whenever the Low Battery Indicator appears,
replace the batteries.
6.
Do not short the battery terminals together
when replacing batteries.
7.
Do not dispose of old batteries in fire.
Always dispose of batteries in accordance
with guidelines provided by local authority.
note: This tool may be used with AC power.
Plug adapter (not included) into adapter
Socket and into a 120 VAC outlet.
Figure 1
Page 2
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