Universal Air Tools UT53NG - Manual (Page 2)

Dismantling & Assembly Instructions
Disconnect tool from the air supply.
Loosen 2 off cap screws (24) with washers (25) and pull off
needle cover (10) and unscrew needle cover (6) and remove
driver (7), needle holder (8), spring (9) and needles (23).
Unscrew body cap (1) with o-ring (26) and from the front end
push out piston (5). Drive out pin (18) and take off lever (17).
Unscrew valve screw (11) with o-ring (12) and take out spring
(13) and valve stem (14) with o-ring (15). Loosen nut(22) and
unscrew valve body (16) and centre tube (21) to release handle
tube (20) and rubber handle grip (19).
Reassembly
Clean all parts and examine for wear. Replace any parts with
parts obtained from the manufacturer or an authorised
representative. Coat all parts with a pneumatic tool lubricating oil
and assemble in the reverse order.
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) Never point a tool at any person.
20) Use only suitable pneumatic tool lubricants. This is important
as a safeguard against the “diesel effect” i.e. explosive mixtures
firing.
21) Do not store needles at freezing and below freezing
temperatures. Freezing temperatures can make hardened-tool
steels brittle which can cause breakage and lead to injury.
22) Do not start tool until needles are in contact with the
working surface. Do not run tool unless retainer is fitted.
23) Always use tool with a whip hose as shown in fig 1.
24) Don’t over reach. Keep proper footing and balance at all
times.
25) Do not force the tool but allow it to cut.
26) When possible secure work with clamps or vice so both
hands are free to operate the tool.
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 For A Needle Gun
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,
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.
Operating
Connect tool to a suitable air supply after having adjusted the
position of the front needle cover so that the needles project
from the front end of the tool by the required amount. When
using the tool keep the tool loaded sufficiently to do work. Do
not overload the tool as it will reduce the power. It is
recommended that the tool is only run when the needles are in
contact with the work piece. Be aware that prolonged exposure
to vibration can cause injury. Do not continue to use the tool
with broken needles as this may cause damage to the tool.