UT9922
Installation
The UT9922 Recoilless Chisel Scaler is designed to operate
with 90 PSIG. Lower pressure (below 90 PSIG) will reduce
performance of the tool while higher air pressure (over 90 PSIG)
raises the performance of the tool beyond its rated capacity and
could cause serious damage to tool and operator.
Always use clean dry air. Excessive moisture and dirt will
greatly reduce the life of any air tool. We recommend the
installation of an in-line filter-regulator-lubricator as close to the
tool as possible.
A 3/8" air hose is required up to a length of 8 ft. If more length
is required, a 1/2" air hose should be connected to the 3/8"
hose to ensure the tool has the necessary air supply. Be sure
all hoses and fitting are the correct size and tightly secured.
2
Lubrication
1.
An automatic in-line filter-regulator-lubricator is recom-
mended to increase tool life and keeps the tool operating
properly. The in-line lubricator should be regularly checked
and filled with Marvel air tool oil or equivalent. Proper
adjustment of the in-line lubricator is performed by placing
a sheet of paper next to the tool exhaust ports and holding
the throttle open approximately 30 seconds. (The lubricator
is properly set when a light stain of oil collects on the
paper). Excessive amounts of oil should be avoided as it
will decrease tool performance.
2.
In the event that it becomes necessary to store the tool for
an extended period of time (overnight, weekend, etc.), it
should receive a generous amount of lubrication at that
time. The tool should be run for approximately 30 seconds
to ensure oil has been evenly distributed throughout the
tool. The tool should be stored in a clean and dry environ-
ment.
3.
Recommended lubricants:
Use Marvel Air Tool Oil or any other high grade turbine oil
containing moisture absorbents, rust inhibitors, metal
wetting agents and an EP (extreme pressure) additive.
Operation
After properly setting up the tool, air lines, air supply and work
area, the scaler is ready to use. The UT9922 does not operate
like conventional scalers, tool operators should take time to
familiarize themselves with the feel and operation of this design
for best results.
This model operates two to three times higher than the fre-
quency of conventional scalers. The higher frequency results in
smoother operation than with conventional scalers.
For efficient material removal, a light to medium force will give
the best results. The tool should not be used to pry off material,
hold tool firmly at an angle and let the tool do the work.
Lubricate tool regularly and properly. Always wear safety
equipment during operation. Always check condition of tool
before each use. Avoid free air operation of this tool, always
apply tool to work before pressing throttle. This tool is designed
for 1/8" X 3/8" sized chisel shanks. Different lengths may be
used, but longer lengths should be avoided. Always check
condition of chisels before use. Do not use damaged chisels.
Caution
- Never operate scaler without the
chisel installed and pressed against the work surface.
Doing so may result in personal injury or heavy wear
damage to the tool.
Warning
- This tool may produce flying
objects. Always wear eye protection during operation.
Recoilless Chisel Scaler
Installing Chisels
Before the tool is connected to the air supply, clear the air hose
of accumulated dust and moisture. Before removing a tool for
service or changing accessories, make sure the air line is shut-
off and drained of air. This will prevent the tool from operating if
the throttle is accidently engaged.
1.
Loosen nut (Ref. No.1) with a standard 17mm wrench.
2.
Insert the chisel between the two chisel retainers (Ref.
No. 2) and retighten the nut.
3.
Ensure that the chisel is properly held by retainers and
nut is secured tightly.
4.
Lubricate tool through inlet with air tool oil and run in a
protected area to check operation.
For most applications, a chisel fitted with a tungsten carbide tip
is recommended. Chisels for your application are available
through your local Universal Tool distributor. Using chisels other
than those recommended for the UT9922 may result in signifi-
cantly higher vibration levels. See parts list for replacement
chisels available.
