Astro Pneumatic Tool THOR 401K User manual

Product Type:Model: 401K 0.401" SHANK THOR LONG BARREL
AIR HAMMER/RIVETER
Page 1
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
The 401K THOR Air Hammer is designed to work
with .401 shank air hammer bits and attachments
of sufficient professional grade. Do not use this tool
outside of the designed intent. Never modify the
tool for any other purpose or use.
Caution: To help prevent personal injury
• 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 By standers).
• 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
WARNING
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 represen-
tatives voids this warranty. The rights under this warran-
ty are limited to the original user and may not be trans-
ferred 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 conse-
quential damages so the above limitations may not
apply to you.
PLEASE DO NOT RETURN ANY PRODUCT WITHOUT CALLING
1-800-221-9705 FOR INSTRUCTIONS
PRODUCT INFORMATION
BEFORE USE
DO NOT DISCARD – GIVE TO USER
• Maximum power .401" shank air hammer for heavy
duty automotive and industrial applications
• Specifically developed THOR model with stroke length
and ported valvebody for power that matches or beats
the top premium options from tool trucks
• Newly designed tilt valve trigger for sensitive power
adjustment at your finger tips
• Features internal brake vibration damping system for
less fatigue No nonsense design: A rotatable forward
grip, sensitive trigger and industry leading power
• Includes quick change chuck, 9.25" length, 10.25"
length, Hi-Flo fittings suggested
Air Inlet: 1/4" NPT
Piston Stroke: 3-5/8"
Stroke Speed: 2100 BPM
Net Weight: 5.3 lbs (2.4 kg)
Length: 10.25" (260mm)
Hose Size: 3/8"
Air Pressure: 90 PSI
Air Consumption: 11SCFM (1.5CFM)
Specification:
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.

WARNING
MAINTENANCE INSTRUCTION
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 connecting 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.
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.
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, either from the
manufacturer or their employer, and proceed to study,
understand, and follow all instructions and warnings
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 listing of
the chemicals can be obtained at
www.oehha.ca.gov under Propoisition 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 out microscopic
particles.
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 maxi-
mum 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 unattend-
ed 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
inhaling dust or debris 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 sanding, sawing, grinding, drilling and
other related activities may expose the user to dust
and/or microscopic particles that may contain chemi-
cals known to the State of California to cause cancer,
birth defects or other reproductive harm.
Product Type:Model: 401K 0.401" SHANK THOR LONG BARREL
AIR HAMMER/RIVETER
Page 2

Product Type:Model: 401K 0.401" SHANK THOR LONG BARREL
AIR HAMMER/RIVETER
Page 3
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"
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
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.

PARTS BREAKDOWN
302
Call 1.800.221.9705 for questions concerning performance of the product
or other inquiries.
Product Type:Model: 401K 0.401" SHANK THOR LONG BARREL
AIR HAMMER/RIVETER
Page 4
Parts List
Qty
1
2
3
4
5
6
7
8
9
10
11
12
13
14
401K01
401K-02
401K-03
401K-04
401K-05
401K-06
401K-07
401K-08
401K-09
401K-10
401K-11
401K-12
401K-13
401K-14
Quick Connector
Barrel
Housing Lock Ring
Piston
O-ring
O-ring
Vibration Damping Valve
Spring
Vibration Damping Housing A
Position Pin ∮6.8*55
Position Pin ∮5.8*55
Vibration Damping Housing B
Actuation
Vibration Damping Body
Index Part No. Description
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Qty
15
16
17
18
19
20
21
22
23
24
25
26
27
401K-15
401K-16
401K-17
401K-18
401K-19
401K-20
401K-21
401K-22
401K-23
401K-24
401K-25
401K-26
401K-27
Screw
Housing
PIN 2*14
Trigger
Valve Stem
PIN 2.5*22
Washer
Valve
Spring
O-ring
Inlet Bushing
Grip
Exhaust Deflector
Index Part No. Description
1
1
1
1
1
1
1
1
1
1
1
1
1