UT9935
Recoilless Air Scribe
Description
The Universal Tool model UT9935 Recoilless Air Scribe features an advanced vibration-dampened mechanism which reduces noise levels and
signicantly reduces vibrations being transferred to the operator. This scribe is designed to mark a variety of materials including steel, aluminum, berglass, ceramics, plastics and glass. This tool features a durable steel housing, carbide tip, contoured grip, and a twist throttle which
allows precise power control to match the application.
PLEASE READ AND FOLLOW ALL WARNINGS
Read Operating Instructions
Always become familiar with all the instructions
and warnings before operating any power tool.
Always Wear Approved Eye Protection Impact
resistant eye protection should meet or exceed
the standards as set forth in the United States
ANSI Z87.1, Occupational and Educational Eye
and Face Protection. Look for the marking Z87.1
on your eye protection to insure that it is an approved style. For further information, ANSI Z87.1,
Occupational and Educational Eye and Face Protection, is available from the American National
Standards Institute, Inc., 11 West 42nd Street,
New York, NY 10036.
Hearing Protection is Recommended
Hearing protection should be used when the
noise level exposure equals or exceeds an 8 hour
time-weighted average sound level of 85 dBA.
Process noise, reective surfaces, other tools
being operated nearby, all add to the noise level
present in your work area. If you are unable to
determine your noise level exposure, we recom-
mend the use of hearing protection.
Avoid Prolonged Exposure
to Vibration
Tools can vibrate during use. Prolonged expo-
sure to vibration or very repetitive hand and arm
movements, can cause injury. Stop using any tool
if discomfort, tingling feeling or pain occurs. You
should consult your physician before resuming
use of the tool.
90 PSIG Maximum
This tool is designed to operate at an air pressure
Specications
Bit size ............................................................ 2 mm tapered to 0 mm
Stroke length .................................................................................1 mm
Speed ................................................................................. 21,000 B.P.M.
Tool length ........................................................................................ 5 ½"
Integral hose supplied ................................................5 ft. x 1/8" I.D.
Weight ................................................................................................6 oz.
Air inlet ..................................................................................... 1/4" Male
Minimum hose size ..................................................................1/4" I.D.
Average air consumption .........................................................1 CFM
Maximum operating pressure ................................................ 90 PSI
Vibration level ........................................................................... 1.4 m/s
2
of 90 pounds per square inch gauge pressure
(90 PSIG) maximum, at the tool. Use of higher
air pressure can, and may cause injury. Also, the
use of higher air pressure places the internal
components under loads and stresses they were
not designed for, causing premature tool failure.
The air supply should be clean and dry, preferably
lubricated. For best results, drain the moisture
from your compressor daily.
PL-2085
A Division of Florida Pneumatic Manufacturing Corporation
Universal Tool
851 Jupiter Park Lane, Jupiter, Florida 33458
Toll Free 1-800-327-9403
FPMC
UT9935
Recoilless Air Scribe
Installation
The UT9935 Recoilless Air Scribe 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 lter and regulator as close to the tool as possible.
A 1/4" air hose is required up to a length of 8 ft. If more length is
required, a 3/8" air hose should be connected to the 1/4" hose to
ensure the tool has the necessary air supply. Be sure all hoses and
tting are the correct size and tightly secured.
Operation
This tool operates slightly dierent than traditional pneumatic
scribes. There are no benets gained by using excessive force. Let
the tool do the work. The black grip also serves as the throttle. Ro-
tating the grip clockwise so it moves higher up on the housing (see
gure 1) will start the tool. The scribe will reach full power before
the grip comes to a stop. DO NOT over rotate! Rotating the opposite
direction will decrease the power until the engraver stops. Hold the
engraver at a slight angle to the work surface, the same as you would
an ink pen.
Replacement of Tip
Refer to the parts list exploded view and the gures below while
replacing the tip.
1. Separate the grip (Ref. No. 5) from the housing (Ref. No. 12) by
unscrewing it counter-clockwise.
2. Turn the grip (Ref. No. 5) upside down and tap it gently against a
workbench to remove the actuator (Ref. No. 7).
3. Push the bit rmly against some wood to slide the internal parts
a few millimeters up into the grip. See gure 2.
4. A wire tool is included (1.5 mm diam.) with your replacement
bit. Using gure 3 for reference, use wire to grab rubber sleeve
(Ref. No. 6) and gently pull out of grip.
5. Now the entire bit assembly (Ref. Nos. 1, 2, 3, & 4) may be re-
moved easily.
6. Pull out old bit and replace it. Check that bit is ush with spring
(Ref. No. 2) and with the bit guide (Ref. No. 4) . Place assembly
into grip.
7. Slide sleeve (Ref. No. 6) back into grip and push down until it
rests on the lip inside the grip.
8. Slide the actuator (Ref. No. 7) into the grip and twist back onto
housing (Ref. No. 12).
Figure 1
Use care during use
Guide tool over surface. Do not use excessive force while engraving.
Operators may have to acquaint themselves with the unique operat-
ing characteristics of this tool.
Lubrication
This tool does not require lubrication for normal use. However, if the
operating environment and conditions warrant, small amounts of oil
may be necessary to clean the tool of deposits and foreign objects
from a dirty air supply. 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.
Figure 2
Figure 3
2
UT9935
Recoilless Air Scribe
Replacement Parts List for UT9935 Recoilless Air Scribe
Ref. Description Part # Qty. Ref. Description Part # Qty.
1 Bit 6G-400-01 1
2 Spring 6G-400-04 1
3 Mufer 6G-400-03 1
4 Bitguide 6G-400-02 1
5 Grip 6G-400-10 1
6 Sleeve 6G-400-05 1
7 Actuator 6G-400-06 1
8 Valveseat 6G-400-08 1
9 Ball 6G-400-07 1
10 O-Ring 6G-400-09 1
11 Nipple 6G-400-11 1
12 Housing 6G-400-12 1
13 Tubing 6G-400-13 1
14 Inlet 6G-400-14 1
3
FPMC
UT9935
Recoilless Air Scribe
Limited Warranty
Universal Tool warrants its tools to be free from defects in material and workmanship for one year from the date of purchase.
This warranty does not apply to tools which have been abused, misused, modied or repaired by someone other than Universal Tool or its authorized service centers. If a Universal Tool proves defective in material of workmanship within one year after
purchase, return it to any authorized service center or to Universal Tool, freight prepaid. Please enclose your name, address and
adequate proof of purchase date with a brief description of the defect. Universal Tool will, at its option, repair or replace defective tools, free of charge. Repairs or replacements are warranted as described above for the remainder of the warranty period.
Universal Tool's sole liability and your exclusive remedy under this warranty is limited to repair or replacement of the defective
tool. There are no other warranties expressed or implied and Universal Tool shall not be liable for incidental, consequential or
special damages, or any other damages, costs or expense of repair or replacement as described above.
Troubleshooting
Tool failure, loss of power or erratic action may be caused by factors outside the tool. Make the following checks:
1. Check air pressure. For rated performance, 90 PSIG air pressure is required AT THE TOOL with tool operating. A drop in air
pressure may be caused by lowered compressor output, excessive drain on the air line or use of hose or connections of
improper size (or in poor condition).
2. Check for wet or dirty air in system. Wet air tends to wash lubricant away from tool and may rust and corrode the components. Dirt and foreign matter in the air supply will impede action of the tool and cause damage to the internal mechanisms. If dirt or water has entered the tool, ush with Marvel air tool oil or equivalent.
Recommended Air Line Set-Up
7/98
4
FPMC
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