Universal Air Tools UT8821-CK User Manual

Operator Instructions

Air Pressure

Recommended Working

6.3

bar

90

PSI

Recommended Minimum

n/a

bar

n/a

PSI

Maximum

7.0

bar

100

PSI

Personal Safety Equipment

Use - Safety Glasses

Yes

Use - Safety Gloves
Use - Safety Boots
Use - Breathing Masks
Use - Ear Protectors

Includes - Foreseen Use, Work Stations, Putting Into Service, Operating, Tool
Maintenance and Safety Rules

Important

Read these instructions carefully before installing, operating,
servicing or repairing this tool. Keep these instructions in a safe
accessible place.

Manufacturer/Supplier Product Type

Universal Air Tool Company Limited

3/8” Drill

Unit 8
Lane End Industrial Park
High Wycombe
Bucks
HP14 3BY

Model No/Nos Serial No

UT8821
UT8821-CK

Tel No Fax No[phone] [phone]

RPM

2,600

Cycles Per Min

1301000 - 2312000

Product Nett Weight

1.98

0.9

lbs
Kg

Recommended Use Of

Balancer Or Support

No

Yes

Foreseen Use Of Tool

This drill is designed for the purpose of drilling holes in all types of
materials, i.e. metals, wood, stone, plastics etc. using drilling bits
designed for this purpose. It may be used with other forms of cutting
tools, polishing devices or for sanding using coated abrasive products.
Before using any such products first check with the manufacturer
their suitability for use with this type of drill. Do not use bonded
abrasive products (i.e. grinding wheels) or saw blades or any device
which has a permitted safe working speed less than the free speed
of the drill.
Do not use this drill for any other purpose than that specified without
consulting the manufacturer or the manufacturer's authorised supplier.

Work Stations

The tool should only be used as a handheld hand operated tool. It is
always recommended that the tool is used when standing on the
solid floor. It can be
used in other posi­tions but before any
such use, the opera­tor must be in a se­cure position having
a firm grip and foot­ing and be aware
that the drill can de­velop a torque reac­tion see section
"Operating".

Recommended Hose Bore

Size - Minimum

Ins M/M Ft M

3/8 10 30 10

Recommended Max.

Hose Length

Noise Level Sound Pressure Level 91.0 dB(A)

Test Method Tested in accordance with

BS EN ISO 15744:2008

Vibration Level

Less than 2.5

Metres / Sec²

Test Method Tested in accordance with

BS EN ISO 28927-5:2009

Putting Into Service

Air Supply

Use a clean lubricated air supply that will give a measured air pressure
at the tool of 90 p.s.i./6.3 bar when the tool is running with the trigger
fully depressed. Use recommended hose size and length. It is
recommended that the tool is connected to the air supply as shown
in figure 1. Do not connect the tool to the air line system without
incorporating an easy to reach and operate air shut off valve. The air
supply should be lubricated. It is strongly recommended that an air
filter, regulator, lubricator (FRL) is used as shown in Figure 1 as this
will supply clean, lubricated air at the correct pressure to the tool.
Details of such equipment can be obtained from your supplier. If such
equipment is not used then the tool should be lubricated by shutting
off the air supply to the tool, depressurising the line by pressing the
trigger on the tool. Disconnect the air line and pour into the intake
bushing a teaspoonful (5ml) of a suitable pneumatic motor lubricating
oil preferably incorporating a rust inhibitor. Reconnect tool to air

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supply and run tool slowly for a few seconds to allow air to circulate
the oil. If tool is used frequently lubricate on daily basis and if tool
starts to slow or lose power.
It is recommended that the air pressure at the tool whilst the tool is
running is 90 p.s.i./6.3 bar. The tool can run at lower and higher
pressures with the maximum permitted working air pressure of 100
p.s.i./7.0 bar.

Operating

Select suitable drill bit, insert the shank into the drill chuck as far as
possible and tighten chuck by hand (keyless) or with key supplied
(chuck & key) making sure that the shank of the device is securely
clamped centrally between the three chuck jaws. Remove chuck key.
When drilling holes of all sizes it is advised to use a pointed punch to
mark the centre at which the hole is to be drilled as this will provide
a starting point for the drill tip. This procedure will prevent the drill bit
from skidding, ensure that the hole is drilled where intended and help
to prevent drill breakage when using small drills. When drilling,
particularly with small diameter drills, always try to ensure that load
applied to the drill is such that the drill bit is always at right angles to
the hole being drilled. Do not force the drill but allow it to cut.
When drilling always adopt a firm posture to be able to counteract
any sudden movement of the drill due to torque reaction. Such torque
reaction can occur when the drill stalls due to a too heavy load being
applied or the material being too hard or tough. The torque reaction
can occur when the drill breaks through the material being drilled,
particularly on sheet metal. Always use eye protection and hand
protection is advised, particularly when drilling holes in metals where
the material being removed from the hole is in the form of long sharp
strips. If present, do not tie the drill chuck key to the drill as the
attaching device i.e. string or chain could become entangled with the
rotating chuck and bit etc.
If using an abrasive device, drilling stone or performing any operation
where dust is created, it is recommended to use a breathing mask.
Always ensure that the material to be drilled is firmly fixed to prevent
its movement.
It is also recommended that when drilling holes of large diameter to
first pre drill a hole of smaller diameter as this will reduce effort
required to drill the hole and minimise torque reaction.

pressures as this will allow the drill to stall more easily and develop
torque reaction.

8) Use safety equipment as recommended.

9) The tool is not electrically insulated. Do not use where there is a
possibility of coming into contact with live electricity, gas pipes, water
pipes, etc. Check the area of operation before performing the
operation.

10) Take care against entanglement of moving parts of the tool with
clothing, ties, hair, cleaning rags, etc. This will cause the body to be
moved towards the work process and can be very dangerous.

11) Do not attempt to hold or guide the drill chuck when the tool is
running. Keep hands clear of the drilling process.

12) Use only compressed air at recommended conditions.

13) Do not attempt to fit attachments, i.e. for sawing, hedge cutting,
grinding, chain sawing, etc.

14) If the tool appears to malfunction remove from use immediately
and arrange for service and repair.

15) If an additional side handle is fitted to the tool ensure that it is
correctly positioned and fixed securely.

16) If the drill is used with a balancer or other suspension device ensure
that it is fixed securely.

Tool Maintenance

It shall be the tool owner’s and/or employer’s responsibility to assure
that tools are maintained in a safe operating condition. Tool
maintenance and repair shall be performed by authorised, trained,
competent personnel. Tools shall be disconnected from their
compressed air supply before repairs are attempted. Repairs shall be
consistent with the manufacturer’s recommended procedures. Tool,
hoses and fittings shall be replaced if unsuitable for safe operation. It
shall be the tool owner’s and/or employer’s responsibility to keep
required rating markings and warnings on the tool in legible condition.

Safety Rules When Using A Drill

1) Read all the instructions before using this tool. All operators must be
fully trained in its use and aware of these safety rules. All service and
repair must be carried out by trained personnel.

2) Always select a suitable cutting, abrasive device suitable for use with
this drill.

3) Always shut off the air supply to the drill and depress the trigger to
exhaust air from the feed hose before fitting, adjusting or removing the
cutting or abrasive device or drill chuck.

4) Always adopt a firm footing and/or position and be aware of torque
reaction developed by the drill.

5) Use only correct spare parts.

6) Check hose and fittings regularly for wear. Do not carry the tool by its
hose and ensure that the hand is remote from the on/off valve (trigger)
when carrying the tool with air supply connected.

7) Do not exceed maximum recommended air pressure. Avoid low air

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