Astro 1873 User Manual

1873

3/8" COMPOSITE IMPACT WRENCH

www.astrotools.com

1 YEAR LIMITED WARRANTY

•Astro Pneumatic Tool Co. warrants our products to the original user against
defective material or workmanship for a period of 1 year (except where noted on our
price schedule) from the date of 1st use. Astro reserves the right to determine
whether the product failed because of defective material, workmanship or other
causes and to charge back for missing parts. Astro Pneumatic Tool Co., at its
discretion, will repair products covered under this warranty free of charge. The
distributor should direct the original user to return the product (with the exceptions
listed below) with the distributor’s name, address, adequate proof of date of
purchase or a copy of warranty card, and a short note explaining the problem.

Failures caused by accident, alteration, or misuse are not covered by this
warranty.

•Astro Pneumatic Tool Co. or its authorized service representatives must perform all
warranty repairs. Any repair to the product by unauthorized service representatives
voids this warranty. The rights under this warranty are limited to the original user and
may not be transferred to subsequent owners.

•This warranty is in lieu of all other warranties, expressed or implied, including
warranties of merchantability and fitness for a particular purpose. Some states do
not allow the exclusion of limitations of incidental or consequential damages so the
above limitations may not apply to you.

PLEASE DO NOT RETURN ANY PRODUCT WITHOUT CALLING

1-800-221-9705 FOR INSTRUCTIONS

Unpacking

When unpacking, check the parts diagram and part number
listing on page 4 to make sure all parts are included. If any
parts are missing or damaged, please call your distributor.

Product Information

• Very powerful, designed to be very light weight, nicely balanced and
very compact

• 3/8" impact wrench delivers one of the best power-to-weight rations
in its class

• Composite housing is extremely comfortable, very durable but is
one of the lightest impact wrenches available

• Aluminum hammer case is reinforced with high tensile strength steel

• Special treated powder metal cylinder gives extra long service life

• Bias motor design provides maximum torque output in reverse

• Handle exhaust directs air away from the operator and work area

• Teasing trigger provides smooth variable speed control

• The power management indexing knob on the rear of the impact
offers six power settings, three work in the forward positions and
three work in the reverse direction

SPECIFICATIONS:

Working Torque Range: 90-260 ft. /lbs. (120-351Nm)
Max. Torque: 300 ft. /lbs. (400Nm) in reverse
Blows Per Minuet: 1,400
Free Speed: 12,500 rpm
Recommended Air Pressure: 90psi
Air Inlet: 1/4" NPT
Air Hose I.D. Size: 3/8" (10mm)
Overall Length: 6" (154mm)
Weight: 2.81 lbs. (1.28kg.)
Sound Pressure: 95 dBA

Important

3/8" COMPOSITE IMPACT WRENCH

MADE IN TAIWAN

1873 1873

1.) LUBRICATION:

Before connection of the hose, apply 4 to 5 drops of a good
quality air tool oil at the air inlet. After 3 to 4 hours of
operation, oiling may be necessary again.

2.) TIGHTNESS OF PARTS:

Regularly check whether all connection parts are

fastened securely. Follow this procedure daily
before beginning work.

3.) STORAGE:

Avoid storing the tool in a location subject to high humidity. If
the tool is left unused, the residual moisture inside the tool
can cause rust. Before storing and after operation, oil the tool
at the air inlet with a good quality air tool oil and run it for a
short period.

4.) DISPOSAL:

Follow national legislation of waste disposal.

3/8" COMPOSITE IMPACT WRENCH 3/8" COMPOSITE IMPACT WRENCH

5.) ORDERING SERVICE PART

For further operational and handling information or for
replacement of parts and components, contact the sales
agent from where you purchased the tool, or the service
division of our company, phone number 800-221-9705.
*When ordering parts and components, give each part
number, name, and quantities.

3/8" COMPOSITE IMPACT WRENCH

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