Universal Air Tools UT079 (HP079) - Manual (Page 2)

Dismantling & Assembly Instructions
Disconnect tool from the air supply.
Remove 2 off lock screws (16) with hex wrench (22) and
remove scraping blade (17), (18), (19) or (20) as fitted. Drive out
roll pin (7) and take off trigger (6). Unscrew air regulator (8) from
handle (1). Remove screw plug (2) and take out spring (3) and
valve stem (4) with O-ring (5). Grip cylinder assembly (13) and
loosen locknut (21) on blade holder (15) to allow the blade
holder to be unscrewed from the cylinder assembly (13). Still
gripping cylinder assembly (13) unscrew handle (1) from it.
Remove upper valve (9), middle valve (10), lower valve (11) and
valve disc (12) from the end of, and the piston (14) from the
bore of cylinder assembly (13). Note for reassembly how the
two pins and the hole in lower valve (12) align with the three
holes in the end of cylinder assembly (13).
Reassembly
Clean all parts and examine for wear. Replace any worn or
damaged parts with parts obtained from the manufacturer or an
authorised distributor. Coat all parts in a pneumatic tool
lubricating oil and reassemble in the reverse order.
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) Prolonged exposure to vibration can cause injury.
Page No 2
Safety Rules For A Gasket Scraper
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.
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
Operating
Fit scraping blade (17), (18), (19) or (20) as required and
connect tool to a suitable air supply. The knob on the side of the
air regulator (8) controls the air flow to the tool and allows
variation in the power and number of blows made by the piston
to the scraping blade. The trigger (6) is the on/off valve for the
tool. To prolong tool life always try to ensure that the scraping
blade as fitted is in contact with the workpiece before starting
the tool. This tool has a high vibration level and its use should
be limited to periods of just a few minutes at a time rather than
continual unbroken usage.