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Operator Instructions Important
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(01494) 883300 (01494) 883237
Read these instructions carefully before installing, operating,
servicing or repairing this tool. Keep these instructions in a safe
accessible place.
Pistol Rev. Screwdriver
Adjustable Clutch
Model No/Nos Serial No
UT5969
RPM
700
Cycles Per Min
Product Nett Weight Recommended Use Of
2.86
1.3
lbs
Kg
Balancer Or Support
No
Air Pressure
Recommended Working
Recommended Minimum
Maximum
6.3
n/a
7.0
bar
bar
bar
90
n/a
100
Personal Safety Equipment
Use - Safety Glasses
Yes
Use - Safety Gloves
Use - Safety Boots
Use - Breathing Masks
Use - Ear Protectors
Foreseen Use
This screwdriver is designed for the tightening and loosening of
threaded fasteners within the range as specified by the
manufacturer. It should only be used in conjunction with 1/4"
male hex shank screwdriver bits and fastener drivers.
Do not use the tool for any other purpose than that specified
without consulting the manufacturer or his authorised
representative.
Work Stations
The tool should only be used as a hand held, hand operated tool.
It is always recommended that the tool is used when standing on
a 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. The operator must adopt a firm grip sufficient to
resist the torque reaction of the tool, i.e. the tool will try to turn in
the hand. The operator must also be aware that when loosening
fasteners, the tool can
move quite quickly away
from the fastener being
undone. An allowance
must be made for this
rearward movement to
avoid hand entrapment.
The operator must also
make allowance that if the
tool does turn in the hand,
the hand is not trapped
against any rigid object.
Recommended Hose Bore
Size - Minimum
Ins M/M Ft M
3/8 10 30 10
Recommended Max.
Hose Length
Noise Level Sound Pressure Level 90.0 dB(A)
PSI
Test Method Tested in accordance with Pneurop
PSI
test code PN8NTC1 and ISO Standard 3744
Sound Power Level 101.0 dB(A)
PSI
Vibration Level
Less than 2.5 Metres / Sec²
Test Method Tested in accordance with ISO
standards 8662 Parts 1 & 7
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
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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.
Operating
Select the correct screwdriver bit or fastener driver to suit the
screw or fastener to be tightened or loosened. Slide back the
sleeve (4) and insert appropriate drive bit.
This model of screwdriver has an adjustable clutch so that the
torque applied to the fastener can be adjusted to give the
required tightness within the torque range of the tool. To set the
tool to give a particular torque output, first remove the clutch
housing - left hand thread and pull out the clutch assembly being
careful not to lose guide pin and spring (23) and (24). Hold the
clutch carrier or insert a 1/4 hex Allen key in cam spindle (14)
and with a spanner rotate adjustment nut (7) until it just touches
sleeve bearing (6). This is the clutch set at its lowest output level.
Reassemble the tool, try it on the joint to be fastened. If more
torque is required to place the fastener repeat the process but
rotate the adjustment nut (7) until there is a gap between it and
the sleeve bearing proceeding at approximately one turn of the
nut at a time until the correct tightness is achieved. If too high a
setting is reached rotate the adjustment nut back a part of a turn
at a time.
If the adjustment nut (7) is rotated too far along the cam spindle
(14) it is possible that the clutch will not slip and a reaction torque
against the hands will be felt. In this situation, if the fastener is not
sufficiently tightened or cannot be loosened then the tool in
adjustable clutch mode has insufficient capacity. Select a more
powerful tool. The person setting up the tool must be aware of
this torque reaction at high setting levels of the clutch and that the
tool will try to turn against the hand. All that is required is a firm
grip.
The tool, when the stall torque position has been reached, can
still be used to set or loosen fasteners, provided the operator is
aware of the need to resist the torque reaction of the tool. Further
adjustment of adjusting nut (7) at this point will not increase the
output of the tool. The only thing that will affect the output is a
change in the air supply pressure. The output can be increased
up to the use of the maximum allowed supply pressure and
decreased with a reduction in supply pressure until the tool fails
to operate.
It must also be understood that even if the clutch is set to slip it
may not do so if the supply air pressure falls below the pressure
at which the clutch was set. It is therefore strongly
recommended that a pressure control valve is used. Information
as to suitable equipment can be obtained from your supplier.
When using the tool keep the screwdriver bit pressed firmly into
the screw head to avoid cam out and screw head damage.
Dismantling & Assembly Instructions
Disconnect tool from the air supply.
Grip the tool in a vice fitted with soft jaws on the pistol grip handle
and unscrew (left hand thread) clutch housing (5) from housing
(52). Pull out clutch assembly being careful not to lose spring
guide (23) and spring (24). Grip the clutch assembly and with a
needle pointed tool, prise out retaining ring (1) and remove
washer (2), spring (3) and ball retainer (4) being careful not to
lose screwdriver bit retaining tool (13). Again with a needle
pointed tool, remove a second retaining ring (1) and pull off
sleeve bearing (6). Unscrew adjusting nut (7) and pull off washer
(8),clutch spring (9) and washer (10). Remove from vice and tap
the front end of the assembly to remove the four off balls (11).
Remove retaining ring (15) and separate cam spindle (14) from
clutch carrier (12). Remove a third retaining ring (1) and pull off
drive dog (16). Unscrew housing (52) from pistol grip housing
(36) and separate internal gear (52), 3 off planet gears (58),
carrier (57), gear spindle (56), 3 off planet gears (55), ring gear
(54), carrier (53) and bearing (21). Do not remove the 3 off pins
in carriers (53) and (57).
Drive out pin (37). Remove screw (48) and pull of trigger (47).
Remove valve spring (46). Grip throttle valve (40) and pull out the
complete trigger valve assembly by first lining up reverse valve
lever with slot in pistol grip handle. Separate reverse valve (43)
with ball (44), rubber (45), o-ring (42), reverse valve bushing (41),
o-ring (40P), throttle valve (40) and o-ring (39). o-ring (38) may
be taken out of body (36). Unscrew air inlet (51) and remove 2 off
screws (50) and take out exhaust diffuser (49). Carefully grip the
splined end of rotor (29) and pull out the complete motor
assembly from housing (36). Remove pin (32). Grip front end
plate (28) and with a non metallic or soft metal (aluminium or
lead) hammer tap the splined end of rotor (29) to drive it through
front end plate (28) and bearing assembly. Remove cylinder (31)
and 4 off rotor blades (30) from rotor (29). Support the cylinder
side face of rear end plate (33) and tap the non splined end of
rotor (29) to separate it from end plate (33) and bearing (34). Tap
out bearing (22) from front end plate (28).
Reassembly
Clean all components and examine for wear. Look in particular
for cuts on o-rings and wear on rotor blades and clutch parts.
Replace parts only with parts obtained from the manufacturer or
an authorised distributor. Coat all parts with a pneumatic tool
lubricating oil and grease all bearings, gears and clutch parts with
a molybdenum or lithium based general purpose grease and
reassemble in the reverse order. Before reassembling make sure
that the faces of end plates (28) and (33) that abut cylinder (31)
are flat and free from burrs and surface marking. If necessary lap
on a flat very fine grade of abrasive paper. When refitting the
complete motor assembly in the housing (36) first make sure the
assembly is clamped tightly together and the rotor (29) spins
freely. Slide the assembly with pin (32) into the housing (36)
ensuring that the motor locating pin (32) locates in the hole in the
bottom of the main bore of housing (36) situated between the
two main ports. Reassemble in the reverse order.
Reset the clutch and/or the air pressure as required - see Section
Operating.
Safety Rules For A Screwdriver
1) Read all the instructions before using this tool. All operators
must be fully trained in its use and aware of these safety rules.
2) Do not exceed the maximum working air pressure.
3) Use personal safety equipment.
4) Use only compressed air at the recommended conditions.
5) If the tool appears to malfunction remove from use
immediately and arrange for service and repair.
6) If the tool is used with a balancer or other support device
ensure that it is fixed securely.
7) Always keep hands away from the working attachment fitted
to the tool.
8) The tool is not electrically insulated. Never use the tool if there
is any chance of it coming into contact with live electricity.
9) Always when using the tool adopt a firm footing and/or
position and grip the tool firmly to be able to counteract any
forces or reaction forces that may be generated whilst using the
tool.
10) Use only correct spare parts. Do not improvise or make
temporary repairs.
11) Do not lock, tape, wire, etc. the on/off valve in the run
position. The trigger/lever etc. must always be free to return to
the 'off' position when it is released.
12) Always shut off the air supply to the tool, and depress the
trigger/lever etc. to exhaust air from the feed hose before fitting,
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UT5969
700 RPM Pistol Grip Reversible Screwdriver - Adj. Clutch
Ref No Part No Description
1 137801 Retaining Ring (3)
2 137802 Washer
3 137803 Spring
4 137804 Ball Releaser
5 137905 Clutch Housing
6 137906 Sleeve Bearing
7 137907 Adjusting Nut
8 137908 Washer
9 137909 Spring
10 137910 Washer
11 137911 Steel Ball (4)
12 137912 Clutch Crarrier
13 106547 Steel Ball
14 137914 Cam Spindle
15 000R-225 Retaining Ring
16 137916 Drive Dog
21 6201-ZZ0A Ball Bearing
23 137823 Spring Guide
24 137824 Spring
27 0608-ZZ0A Ball Bearing
28 126333 Front End Plate
29 126330 Rotor
30 106316 Rotor Blade (5)
31 126329 Cylinder
32 137832 Pin
33 126328 Rear End Plate
Feb 2000 Ver 1.0
Ref No Part No Description
34 0626-ZZ0A Ball Bearing
36 137717 Motor Housing
37 0025-200 Pin
38 1280-240 O-ring
39 0400-200 O-ring
40 137722 Throttle Valve
40P 0400-100 O-ring
41 137726 Reverse Valve Bushing
42 1000-190 O-ring
43 137724 Reverse Valve
44 103633 Steel Ball
45 137719 Detent Rubber
46 117711 Spring
47 127810-1PC0 Trigger
48 127810-AJB0 Screw
49 137729 Exhaust Diffuser
50 116533 Screw (2)
51 137731 Inlet Bushing
52 187952 Housing
53 187953 Carrier
54 187722 Internal Gear (2)
55 187955 Planet Gear (3)
56 187956 Gear Spindle
57 126339 Carrier
57P 103324 Pin
58 306322 Planet Gear
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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 UT5969 Pistol Reversible Screwdriver, 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 Parts 1 & 7, Pneurop PN8NTC1
following the provisions of
89/392/EEC as amended by 91/368/EEC & 93/44/EEC Directives
Lane End D.H.Moppett (Man. Director)
Place and date of issue Name and signature or equivalent marking of authorised person
adjusting or removing the working attachment.
13) Check hose and fittings regularly for wear. Replace if
necessary. Do not carry the tool by its hose and ensure the hand
is remote from the on/off control when carrying the tool with the
air supply connected.
14) Take care against entanglement of moving parts of the tool
with clothing, ties, hair, cleaning rags, etc. This will cause the
body to be drawn towards the tool and can be very dangerous.
15) It is expected that users will adopt safe working practices
and observe all relevant legal requirements when installing, using
or maintaining the tool.
16) Do not install the tool unless an easily accessible and easily
operable on/off valve is incorporated in the air supply.
17) Take care that the tool exhaust air does not cause a problem
or blows on another person.
18) Never lay a tool down unless the working attachment has
stopped moving.
19) Always ensure that the reverse button is in the selected
position before starting the tool.
20) Do not use bits or sockets with excessive wear to the input
and output drives. Make sure the bit, socket, extension is firmly
fixed to the tool.
21) When loosening fasteners first ensure that there is sufficient
clearance behind the tool to avoid hand entrapment. The tool will
move away from the threaded joint as the nut/bolt is loosened
and rides up the thread moving the tool with it.
Accessories
Notes
Distributor
This document may not be copied wholly or in part by anyone without the consent of the Directors of Universal Air Tool Company Limited
Designed & Written in the U.K.
© Copyright of Universal Air Tool Company Limited, established in the United Kingdom, 1994
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