Universal Tool UT8824 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
lbs
Kg
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
designedforthispurpose.Itmaybeusedwithotherformsofcutting
tools,polishingdevicesorforsandingusingcoatedabrasiveproducts.
Beforeusinganysuchproductsfirstcheckwiththemanufacturertheir
suitability for use with this type of drill. Do not use bonded abrasive
products(i.e.grindingwheels)orsawbladesoranydevicewhichhas
a permitted safe working speed less than the free speed of the drill.
Donot use this drillfor any other purposethan that specified without
consultingthemanufacturerorthemanufacturer'sauthorisedsupplier.
Putting Into Service
Air Supply
Useacleanlubricatedairsupplythatwillgiveameasuredairpressure
atthetoolof90p.s.i./6.3barwhenthetoolisrunningwiththetrigger
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)isusedasshowninFigure1asthiswill
supplyclean,lubricatedairatthecorrectpressuretothetool.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
bushingateaspoonful(5ml)ofasuitablepneumaticmotorlubricating
Work Stations
The tool should only be used as a handheld hand operated tool. It is
alwaysrecommendedthatthetoolisusedwhenstandingonthesolid
floor. It can be
used in other
positions but
before any such
use, the opera-
tor 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
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
Page No 1
3/8 Capacity Pistol Grip
Drill
UT8824
2.2
1.0 3/8 10 30 10
2600
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
Noise Level Sound Pressure Level 85.5 dB(A)
Test Method Tested in accordance with Pneurop
test code PN8NTC1 and ISO Standard 3744
Sound Power Level 97.1 dB(A)
Vibration Level
Test Method Tested in accordance with ISO
standard 8662/1
Less than 2.5 Metres / Sec²

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
fromskidding,ensurethattheholeisdrilledwhereintendedandhelp
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.
Whendrillingalwaysadoptafirmposturetobeabletocounteractany
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
protectionisadvised,particularlywhendrillingholesinmetalswhere
thematerialbeing removed from the holeisinthe form of long sharp
strips.Donot tie the drill chuck keytothedrillas the attaching device
i.e. string or chain could become entangled with the rotating chuck
and bit etc.
Ifusinganabrasivedevice,drillingstoneorperforminganyoperation
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 drill from air supply.
The drill chuck (25) may be removed by placing the chuck adjusting
key securely in the chuck and giving the key a sharp tap with a
hammer in the direction to loosen a right hand threaded joint. If this
fails to remove the chuck remove it after the gearbox assembly has
beenremoved from thedrillhandle.(See later).Placemotorhousing
(1) in a vice fitted with soft jaws with the handle section pointing
upwards, unscrew bushing (26), remove screw (4) and exhaust
deflector (3). Unscrew locknut (24) to remove gearbox and pull out
motor assembly.
If the drill chuck has not been removed as it is too tightly fitted, it can
be removed as follows. Pull off ring gear (20) from gearbox and pull
off 3 off idler gears (21). Use a suitable square section bar inserted
between the pins in idler gear plate (22), pushed up against the face
toensurethatcontactismadeatthebottomofthepinsandunscrew
thechuck using thechuckkey.Do notusearoundbar orlocateatthe
outeredgeofthepins as this may distort the 3 pins.Alengthof8mm
(0.312)squarebarisidealforthispurpose.Continuetodismantlethe
gearbox by supporting ball bearings (23) on the gear side in a piece
of tube of suitable bore to just clear the largest diameter of idler gear
plate(22) and press outidler gear plate frombearings 2 off- (23).It is
recommendedthatthepinsintheidlerplate(22)arenotremovedfor
replacement and the complete idler gear plate (22) is replaced. For
information the nominal diameter of the three pins in the idler plate
(22) is 0.1574 ins (4 mm). Replacement is required if the pins are
badly damaged or worn below 0.155 (3.937 mm) diameter.
To dismantle motor assembly grip the front end plate (19) tightly by
hand and tap the gear end of the rotor with a non metallic or soft
metal (lead or aluminium) hammer through the front end plate (19)
and bearing (13). Remove 4 off rotor blades (17) and cylinder (18).
Hook out plastic shield from rear end plate (14). Support rear end
plate (14) in a piece of tube with a bore size as close as possible to
the largest diameter of the rotor (14) and tap the non splined end of
the rotor to remove it from the rear end plate and bearing assembly.
Tap out bearing (13) from rear end plate (14) and bearing (13) from
front end plate (19).
Tapouttriggerretainingpin(2)andpullouttriggerassembly.Remove
trigger (10) from valve stem (6). Remove valve stem (6) from valve
bushing (9) and remove O-Rings (5). Remove 2 off O-Rings (7) and
O-ring (8) from valve bushing (9).
Reassembly
Clean all component parts and examine for wear before
reassembling.Useonly manufacturers ordistributorsuppliedspare
parts. Check in particular for wear and cuts on O-Rings and wear on
rotor blades. Lightly coat all parts with a suitable pneumatic tool
lubricatingoil.Packallbearingsandgearboxwithageneralpurpose
lithium or molybdenum based general purpose grease.
Assemble in reverse order - see notes below.
Motor Assembly
If fitting a new rotor very lightly deburr the edges of the rotor slots.
Makesurerotor blade slotsareclean.Makesurethat the faces ofthe
frontand rear endplates (19) and(14) that abut cylinder (18) are free
from burrs and surface marking. If necessary lap faces on a flat, very
fine grade of abrasive paper.
Pressbearing(13)intoendplates(14)and(19).Supportbearing(13)
in rear end plate on the inner race and tap rotor on the gear end with
asoftmetalornonmetallichammeruntiltherotorlocatesagainstthe
face of the rear end plate. Support the inner face of the rear end plate
in a piece of tube with a bore diameter as close as possible to the
largest diameter of the rotor and tap the non splined end until a
clearanceof0.040mm(0.0015")to0.065mm(0.0025")isobtained
between the inner face of the rear end plate and the rotor. This
clearance to be checked when pulling the rotor by hand away from
the rear end plate and bearing assembly.
Spin rotor to ensure that it will spin freely in the rear end plate and
bearingassembly.Fitrotorbladesandcylinderensuringthatthepinin
one end of the rotor cylinder locates in the round hole in the rear end
plate. Push on front end plate and check that rotor still rotates freely.
Reassemble tool in reverse order.
oil preferably incorporating a rust inhibitor. Reconnect tool to air
supply and run tool slowly for a few seconds to allow air to circulate
theoil.Iftoolisusedfrequentlylubricateondailybasisandiftoolstarts
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
pressureswiththemaximumpermittedworkingairpressureof100
p.s.i./7.0 bar.
Page No 2
Safety Rules When Using A Drill
1)Readalltheinstructionsbeforeusingthistool.Alloperatorsmustbe
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
exhaustairfromthefeedhosebeforefitting,adjustingorremovingthe
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)Checkhose and fittings regularly for wear. Donotcarrythetool 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
airpressuresasthiswillallowthedrilltostallmoreeasilyanddevelop
torque reaction.
8) Use safety equipment as recommended.
9) The tool is not electrically insulated. Do not use where there is a
possibilityofcomingintocontactwithliveelectricity,gaspipes,water
pipes, etc. Check the area of operation before performing the
operation.
10) Take care against entanglement of moving parts of the tool with

UT8824 3/8 Capacity Pistol Grip Drill
Page No 3
Mar 1999 Ver 1.2
Ref No Part No Description
1900005 Motor Housing
2732060 Pin
3732061 Exhaust Deflector
4732062 Screw
5732062 O-Ring
6732064 Valve Stem
7732065 O-Ring (2)
8732066 O-Ring
9732067 Valve Bushing
10 732068 Trigger
11 729178 Bearing Cap
13 729012 Ball Bearing (2)
14 731033 Rear End Plate
15 129182 Pin
16 900006 Rotor
17 732445 Rotor Blade (4)
18 729183 Cylinder
19 900007 Front End Plate
20 732078 Ring Gear
21 900008 Idler Gear (3)
22 732080 Idler Gear Plate
23 732081 Ball Bearing (2)
24 900010 Lock Nut
25 H0019K Keyless Chuck
26 900009 Bushing

Distributor
Notes
Page No 4
Accessories
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)Donotattempttofitattachments, 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.
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 UT8824 3/8” Capacity Pistol Drill, Serial Number
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.