Universal Tool UT8818 Specifications

Manufacturer/Supplier Product Type RPM
Cycles Per Min
Tel No Fax No(01494) 883300 (01494) 883237
Model No/Nos Serial No (if any)
Product Nett Weight Recommended Use Of
Balancer Or Support
Recommended Hose Bore
Size - Minimum
Recommended Max.
Hose Length
Ins M/M Ft M
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.
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
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 posi-
tions 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".
No
Page No 1
1/2” Capacity Reversible
Pistol Grip Drill
UT8818
3/8 10 30 10
750
Includes - Foreseen Use, Work Stations, Putting Into Service, Operating,
Dismantling, Assembly and Safety Rules
Operator Instructions Important
Read these instructions carefully before installing, operating,
servicing or repairing this tool. Keep these instructions in a safe
accessible place.
Universal Air Tool Company Limited
Unit 8
Lane End Industrial Park
High Wycombe
Bucks
HP14 3BY
lbs
Kg
2.02
0.92
Noise Level Sound Pressure Level 76.0 dB(A)
Test Method Tested in accordance with Pneurop
test code PN8NTC1 and ISO Standard 3744
Vibration Level
Test Method Tested in accordance with ISO
standard 8662/1
Less than 2.5 Metres / Sec²
Personal Safety Equipment
Use - Safety Glasses
Yes
Use - Safety Gloves
Use - Safety Boots
Use - Breathing Masks
Use - Ear Protectors
Air Pressure
Recommended Working
6.3
bar
90
PSI
Recommended Minimum
n/a
bar
n/a
PSI
Maximum
7.0
bar
100
PSI

Operating
Select suitable drill bit, insert the shank into the drill chuck as far as
possible and tighten chuck with key supplied 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. 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.
Dismantling & Assembly Instructions
Disconnect the tool from the air supply,
To remove the chuck use a cross head screwdriver and remove the
set screw (39-1) then unscrew the chuck from the anvil (37).
Use a 17mm spanner to undo the air inlet (42) and second silencer
(44) then with a small hook pull out the o ring (11) and silencer (43).
Unscrew clutch housing (36) using a 25mm open spanner then
remove the internal gear (34) pull out gear set (30, 29 & 28).
Pull out the motor assembly, tap the rotor (22) to loosen the
assembly, remove front plate (24) and bearing (25) from the front
plate (24) remove rotor blades (23) cylinder (20) then remove the
end plate (19) and push out the bearing (18) from the end plate (19)
using a4.1mm diameter roll stick take out screw (16) and remove
switch (17) them remove the valve (15) o`ring (14) and spring (13).
Unscrew cap screw (10) and remove button (9) pull out valve pin (6)
from pistol housing (1) then pick out parts (8, 8-1, 5, 6, 4 & 7) in
sequence.
Reassembly
Clean all parts and examine for wear and cracks, etc. and replace as
necessary. Look in particular for wear and cuts on O-rings, wear on
rotor blades and wear on bearing (18) and (25). Make sure that the
faces of end plates (24) and (19) that about cylinder (20) are flat and
free from burrs. The height of the rotor (22) must be lower than the
height of the cylinder (20) otherwise the motor will not run.
Lap on a flat fine grade of abrasive paper if necessary. Use only
manufacturer or authorized distributor supplied spare parts. Lightly
coat all parts with suitable pneumatic tool lubrication oil and
reassemble in the reverse order.
When assembling the gear sets (28,29, 30,31,32,33 & 34) use
lubricating oil on all the gear parts.
On completing assembly, ensure that all parts are locked tight and
the spindle rotates and the lever throttle. Connect tool to suitable air
supply and operate tool slowly for a few seconds and reset for
operation required. Refer to section on Operation Instructions.
oil preferably incorporating a rust inhibitor. Reconnect tool to air
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.
Page No 2
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 device. Remove 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 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.

UT8818 1/2” Capacity Reversible Pistol Grip Drill
Page No 3
Jan 2009 Ver 1.01
Ref No Part No Description
1 5L2100 Pistol Housing
2 7Q2008 O-Ring
3 2C2003 Blank Cap
4 7Q2006 O-Ring
5 7Q6112 Valve O-Ring
6 6S2023 Valve Pin
7 6N2106 Cone Spring
8 6S2024 Valve Bushing
9 7Q2009 O-Ring (2)
10 5L2701 Button (Black)
11 5L2116 Cap (Black) (2)
12 2Q5001 O-Ring (3)
13 2S2011 Screw Cap (2)
14 6N5006 Spring
15 7Q2011 Valve O-Ring
16 2P6003 Valve
17 7S2107 Set Screw
W/Washer
18 2L6012 Switch (Black)
19 7S5001 Ball Bearing
20 1S6001-A End Plate
21 1P6005 Cylinder
22 2S2023 Key
23 1S6047 10T Rotor
Ref No Part No Description
23 1P6051 Blade (6)
24 1P6063 Front Plate
25 7S2011 Ball Bearing
26 6N2020 C Ring
29 1P2101 First Plant Gear (4)
30 1P3280 First Gear Cage
31 1G6090 Second Main Gear
32 1P6130 Second Plant Gear
(4)
33 1P6288-1 Fourth Gear Cage
34 1S2061 Internal Gear
35 7S2010 Ball Bearing
35-1 7S2008 Ball Bearing
36 5A5355 Clutch Housing
36-1 2Q2003 O-Ring
37 3S5042 Anvil (6.35 Hex)
38 6N2081 E Ring
39 H0020K Drill Chuck
39-1 7S2117 Left Screw
40 5L2201 Pistol Cover
(Black)
42 2S2005 Air Inlet Bushing
(Pt)
43 2P3040 First Silencer
44 2P3041 Second Silencer

Distributor
Notes
Page No 4
Accessories
Declaration of Conformity
Universal Air Tool Company Limited
Unit 8, Lane End Industrial Park, High Wycombe, Bucks, HP14 3BY, England
declare under our sole responsibility that the product
Model UT8818 1/2” Capacity Reversible Pistol Grip Drill, Serial No
to which this declaration relates is in conformity with the following standard(s) or other normative document(s)
EN792 (Draft), EN292 Parts 1 & 2, ISO 8662 Part 1, Pneurop PN8NTC1
following the provisions of 89/392/EEC as amended by 91/368/EEC & 93/44/EEC
Place and date of issue Name and signature or equivalent marking of authorised person
Lane End D.H.Moppett (Man Director)
This document may not be copied wholly or in part by anyone without the consent of the Directors of Universal Air Tool Company Limited
©Copyright of Universal Air Tool Company Limited, established in the United Kingdom, 1994
Designed & Written in the U.K.
ARTHUR PATERSON