Astro Pneumatic Tool 1812 User manual

DO NOT DISCARD – GIVE TO USER
WARNING
www.astrotools.com
PLEASE DO NOT RETURN ANY PRODUCT WITHOUT CALLING
1-800-221-9705 FOR INSTRUCTIONS
Page 1
BEFORE USE
Study, understand and follow all instructions provided with this
product. Read these instructions carefully before installing,
operating, servicing or repairing this tool. Keep these instructions
in a safe accessible place.
INTENDED USE OF THE TOOL
Model: Product Type:
1812
1812L - 3" Anvil
1812L - 3" Anvil
1812
1/2" SUPER DUTY IMPACT WRENCH
1/2" SUPER DUTY IMPACT WRENCH
PRODUCT INFORMATION:
SPECIFICATIONS:
-
The 1812 and 1812L air impact wrenches are designed to remove
and install threaded fasteners using 1/2" drive sockets designed for
impact wrench use. Do not use this tool outside of the designed
intent. Never modify the tool for any other purpose or use.
• Use of this product can expose you to chemicals such as
phthalates which are known to the State of California to
cause cancer, and birth defects or other reproductive harm.
For more information go to
www.P65Warnings.ca.gov/product.
Always wear ANSI approved safety equipment, safety
glasses and clothing when using this product. Study,
understand, and follow all instructions provided with this
product. Failure to read and follow all warnings and
operating instructions may result in damages and serious
injury or death.
• Always wear ANSI approved goggles when using this
product. (Users and Bystanders).
• Never use this tool for any application other than for
which it was designed.
• Only use accessories designed for this tool.
• Never alter or modify this tool in any way.
•Improper operation and/or maintenance of the tool,
modification of the tool, or use of the tool with accessories
not designed for it could result in serious injury or death.
• Always select the correct accessories of the correct size
and design for the job that you are attempting to perform.
• Always work in a clean, safe, well-lit, organized and
adequately equipped area.
•Do not begin repairs without assurance that vehicle is in
secure position, and will not move during repair.
WARNING
• 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 representa-
tives 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.
1 YEAR LIMITED WARRANTY
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.
• Ideal for general automotive work, light truck, farm, body shop,
tire shop and front-end work
• Durable twin hammer impact mechanism
• Anvil and rotor made of a special heat treated alloyed steel
which prevent chipping or breaking
• Steel hammer case provides maximum protection
• Two piece construction for easy maintenance
• Pressure feed lubrication system
Square Drive:
Free Speed:
Overall Length:
Net Weight:
Max. Torque:
Bolt Capacity:
Air Inlet Thread NPT:
Air Hose I.D. Size:
Avg. Air Consumption:
Air Pressure:
Sound Level
Vibration:
1/2"
7500rpm
7-1/2" (190mm)
5-3/5lbs. (2.60kg)
450ft./lbs.
9/16" (14mm)
1/4"
3/8" (10mm)
4.20cfm
90-120psi
102dBA
6.0M/S²

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Page 2
Model: Product Type:
1812
1812L - 3" Anvil 1/2" SUPER DUTY IMPACT WRENCH
-
MAINTENANCE INSTRUCTION:
1.) Lubrication:
Before connection of the hose, apply 4 to 5 drops of a
good quality air 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 and run it
for a short period.
4.) Disposal:
Follow national legislation of waste disposal.
5.) Ordering Service Parts:
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.
**When ordering parts and components, give each part
number, name, and quantities**
WARNING
WARNING
1. The tool shall not be used in potentially explosive atmospheres.
2. Disconnect the air hose before changing or adjusting any
inserted tools.
3. Before using tool, please confirm all couplings and plugs are
fixed securely. An air hose that is under pressure may lash
out when disconnected and could lead to serious injuries.
4. Prevent loose clothes, long hair or any other personal
accessories from coming close to moving parts to reduce the
risk of being caught, trapped or drawn into the rotating spindle.
5. Excessive high air pressure that exceeds the maximum
pressure may cause injuries to user.
6. Exposure to strong vibration for extended time may cause
harm to operator.
7. Be aware of the rotation direction before starting the tool to
reduce hazardous situations due to unexpected rotation direction.
8. WATCH YOUR STEP! Leaving excess hose unattended near
working area or walk path could result in injury or death.
9. Wearing eye/face protection could reduce the danger to
person from high speed splinters being emitted from the tool
or work surface.
10. Wearing correct breathing protection will help avoid inhaliing
dust or debries from work process that can be harmful to
your health.
11. High sound levels can cause permanent hearing loss. Use
hearing protection while operating tool.
12. Due to the material being processed, there may be a risk of
explosion or fire. Be aware of work surface dangers prior to
beginning work.
13. There is a risk of being cut due to high speed rotation. Do
not touch high speed rotating disc.
14. This power tool is not insulated. If contact is made with an
electric current, injury may occur.
15. Dust created by wrenching and other related activities may
expose the user to dust and/or microscopic particles that
may contain chemicals known to the State of California to
cause cancer, birth defects or other reproductive harm.
Users of this tool should review the chemical composition of
the work surface and any products used in conjunction with
this tool for any such chemicals prior to engaging in any
activity that creates dust and/or microscopic particles.
Users should obtain the Material Safety Data Sheets for all
identified chemicals, whether from the manufacturer or their
employer, and proceed to study, understand, and follow all
instructions and warning for exposure to such chemicals.
Some examples of these chemicals are: lead from lead
based paints; crystalline silica from bricks, cement and
other masonry products; and arsenic and chromium from
chemically treated lumber. A list of the chemicals can be
obtained at www.oehha.ca.gov under Proposition 65.
In order to reduce their exposure to such chemicals users
should always:
- Work in well-ventilated areas.
- Wear appropriate safety equipment and clothes that are
specifically designed to filter our microscopic particles.

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Page 3
Model: Product Type:
1812
1812L - 3" Anvil 1/2" SUPER DUTY IMPACT WRENCH
-
in the air supply system where the temperature of the compressed air in
the line is likely to be lowest. Air lines must be properly drained daily.
Each low point in an air line acts as a water trap. Such points should be
fitted with an easily accessible drain. See diagram below. Pitch all air
lines back towards the compressor so that condensed moisture will flow
back into the air receiver where it can be drained off. Drain daily.
The oil and water extractor should not be mounted on or near the air
compressor.
The temperature of air is greatly increased during compression. As the
air cools down to room temperature, in the air line, on its way to the Air
Power Tool, the moisture contained in it condenses. Thus, for maximum
effectiveness, the oil and water extractor should be mounted at some point
SUGGESTED AIR LINE CONNECTION
Pitch pipe back toward air receiver
Compressor unit
Drain
Daily 25 FEET OR MORE
Oil and Water Extractor should be at least 25 ft. from the compressor. Further if possible.
Drain
Daily
Drain
Daily
Oil and Water
Extractor
Install drain at
each low point
PIPE SIZE, I.D. (Inches)
Air Flow
CFM
Length of Pipe (feet)
10
20
30
40
50
70
50
1/2"
3/4"
3/4"
1"
1"
1"
100
3/4"
3/4"
3/4"
1"
1"
1"
150
3/4"
3/4"
1"
1"
1"
1-1/4"
200
3/4"
1"
1"
1"
1-1/4"

1
13 14 15 16 17 18 19 20 21 22
23
37
38
39
40
39
41
42
43
2
24
25
26
27
33
34
35
36
28
29
30
31
32
23 4 5 67 8 910 11 12
Call 1.800.221.9705 for questions concerning performance of the product
or other inquiries.
Model:
1812
1812L - 3" Anvil
Product Type:
1/2" SUPER DUTY
IMPACT WRENCH
Parts List
Page 4
372 Old US Highway 52 South
Mount Airy, NC 27030
1812-01B
1812-02B
1812-03B
1812-04B
1812-05B
1812-06B
1812-07B
1812-08B
1812-09B
1812-10B
1812-11B
1812-12B
1812-13B
1812-14B
Hex Screw
Gasket
Hammer Case
Gasket
Washer
Anvil Bushing
Circlip
O ring
Anvil
Hammer Pin
Hammer Cage
Hammer
Gasket
Bearing
3
4
1
1
2
1
1
1
1
2
1
2
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Index
No. Part No. Description Q’ty Index No. Part No. Description Q’ty Index No. Part No. Description Q’ty
1812-15B
1812-16B
1812-17B
1812-18B
1812-19B
1812-20B
1812-21B
1812-22B
1812-23B
1812-24B
1812-25B
1812-26B
1812-27B
1812-28B
Front End Plate
Vane
Rotor
Pin
Cylinder
Rear End Plate
Bearing
Gasket
Screw
Trigger
Spring Pin
Handle
Inlet Pin
Inlet Valve Gasket
1
6
1
1
1
1
1
1
1
1
1
1
1
1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1812-29B
1812-30B
1812-31B
1812-32B
1812-33B
1812-34B
1812-35B
1812-36B
1812-37B
1812-38B
1812-39B
1812-40B
1812-41B
1812-42B
1812-43B
Sesl Gasket
Inlet Valve
O ring
Inler Valve
Spring
O ring
Air Inlet
Air inlet screen
Screw
Timing Button
O ring
Timing Bushing
Steel ball
Spring
Timing Valve
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
201