Universal Air Tools UT5880 User Manual

Operator Instructions Important

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Includes - Foreseen Use, Work Stations, Putting Into Service,
Operating, Dismantling, Assembly and Safety Rules

Manufacturer/Supplier Product Type

Universal Air Tool Company Limited
Unit 8
Lane End Industrial Park
High Wycombe
Bucks
HP14 3BY

Tel No Fax No

[phone] (01494) 883237

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

Pistol Grip Reversible Drill

Model No/Nos Serial No (if any)

UT5880 - 1/2 Cap

RPM

500

Cycles Per Min

Product Nett Weight Recommended Use Of

4.30

1.95

lbs
Kg

Air Pressure
Recommended Working
Recommended Minimum
Maximum

Perso n a l Sa fe t y E q ui pm en t
Use - Safety Glasses
Use - Safety Gloves
Use - Safety Boots
Use - Breathing Masks
Use - Ear Protectors

Balancer Or Support

No

6.3

bar

90

n/a

bar

n/a

7.0

bar

100

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
with out co nsul ti ng th e ma nufa ctur er or th e man uf act urer '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 stand-
ing on the solid floor. It
can be used in other po-
sitions but before any
such use, the operator
must be in a secure posi-
tion 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

3/8 10 30 10

Ins M/M Ft M

Noise Level

PSI

Test Method

PSI

est code PN8NTC1 and ISO Standard 3744

PSI

Vibration Level

Test Method

Sound Pressure Level 88.3 dB(A)
Sound Power Level 100.1 dB(A)

Tested in accordance with Pneurop

Less than 2.5

ested in accordance with ISO

standard 8662/1

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 sys tem withou t incorporating an easy to reach a nd
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

Recommended Max.

Hose Length

Metres / Sec²

Page No 1

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 supply and run tool slowly for a
few sec onds 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 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
counte ract an y sudden moveme nt 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 tou gh. The torque reaction c an occur w hen the drill
breaks through the material being drilled, particularly on sheet
metal . A lw ays us e eye p r ot ecti o n and hand p ro tec ti o n is
advised, particularly w hen drilling h oles in me tals whe re the
materia l being remove d from the hole is in the form of long
sharp strips. Do not tie the drill chuck key to the drill as the
attach ing device i.e. string or chain could become entangled
with the rotating chuck and bit etc.
If using a n abrasive device, drilling stone or performing a ny
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 from air supply
If fitted first unscrew dead handle (40) and remove clamp ring
(41)
Grip motor housing (34) in a vice fitted with soft jaws, hold drill
chuck (1) and unscrew chuck screw (7). Place chuck key
securely into drill chuck (1) and give the key a sharp tap with a
hammer in a direction so as to loosen a right hand thread. If this
fails remove the chuck as it is too tightly fitted. Then see later.
Unscrew clamp nut (2) from motor housing (34) and push out
the internal gear assembly by pushing work spindle (13) from
the front end. The complete internal assembly comprising of 2
ball bearings (4) washer (11) inner collar (5) internal gears (10)
gears (9) pinion gear (14) work spindle (8) and reduction spindle
(13) may be separated. Note: do not attempt to remove the 3
pins from the reduction spindle (13) or (8) from either range.
Pull out motor assembly complete with pin (22) grip the front
end plate (17) by hand and tap the splined end of the rotor (19)
with a non metallic or soft metal (lead or aluminium) hammer to
drive the rotor through the components being held. Take out 5

off rotor blades (20) from the rotor (19) and take off cylinder (21)
Support the rear end plate (18) in a piece of tube with a bore
diameter as close as possible to the maximum diameter of the
rotor and tap the non splined end of the rotor through the rear
end plate (18) and bearing (16)
Unscrew air inlet (38) take out 2 off screws (37) and remove
exhaust diffuser (36)
Drive out pin (33) grip trigger (25) and pull out the complete inlet
and reverse valve assembly
Note: Make sure that the reverse lever is correctly aligned with
the mid position of the slot in the motor housing (34) Take out
o-ring (32) from the bottom on the valve bore in motor housing
(34)
Unscre w set s crew (24) an d it is then possible to sepa rate
trigger (25) valve spring (26) reverse bushing (31) valve stem
(27) and reverse lever assembly (29) o-ring (28) may be prised
off the va lve stem (27) and o-rin g (30) off the reverse le ver
assembly (29)Note: Do not remove rubber cushion (43) and
steel ball (44) from reverse lever assembly (29) and note that
when reassembling the inlet/reverse valve assembly that the
o-ring (32) is repositioned in the motor housing trigger bore and
slot in the reverse bushing (31) is lined up with pin hole for pin
(33) in motor housing (34)

Reassembly

Clean all co mp onent part s and e xamin e for wear b efo re
reass em bling. Use on ly m an u fac tu rer or distributor su pplied
parts.
Check in particular for wear and cuts on o-rings on rotor blades,
gear and clutch components.
Lightly coat all parts with a suitable pneumatic tool lubricating
oil, preferably one incorporating a rust inhibitor. Pack bearings
and grease gears and clutch parts with a lithium or molybdenum
based general purpose grease.
Before reassembling the motor make sure that the faces of the
end plate (18) and the cylinder (21) are flat and free from burrs.
If necessary lap on a flat very fine abrasive paper. Reassemble
in the reverse order. When refitting the complete motor
assembly to the housing (34) first make sure that the assembly
is clamped tightly together and the rotor spins freely, slide the
assembly with gasket into the housing (34) ensuring that the
motor pin (22) locates in the motor assembly and in the hole in
the bottom of the main bore of housing (34) situated between
the two main ports.

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 posi tion 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 c arrying the tool with a ir 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

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