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– Take care against entanglement of the moving parts of the tool
with clothing, hair, ties, cleaning rags, rings, jewelry, watches,
bracelets, etc. This could cause the body or parts of the body to
be drawn towards and in contact with the moving parts of the tool
and could be very dangerous.
– It is expected that users will adopt safe working practices and
observe all local, regional and country legal requirements when
installing, using or maintaining the tool.
– Take care that the exhaust air does not point towards any other
person or material or substance that could be contaminated by oil
droplets. When first lubricating a tool or if the tool exhaust has a
high oil content, do not allow the exhaust air to come near very
hot surfaces or flames.
– Never lay the tool down until the working attachment has stopped
moving.
– When the tool is not in use, shut off the air supply and press the
trigger/lever to drain the supply line. If the tool is not to be used
for a period of time, first lubricate, disconnect from air supply and
store in a dry average room temperature environment.
– If the tool is passed from one user to a new or inexperienced
user, make sure these instructions are passed with the tool.
– Do not remove any manufacturer fitted safety devices where fitted,
i.e., wheel guards, safety trigger, speed governors, etc.
– Wherever possible, secure workpiece with clamps, a vise, etc. to
make it rigid so it does not move during the work operation. Keep
good balance at all times. Do not stretch or overreach.
– Try to match the tool to the work operation. Do not use a tool that
is too light or heavy for the work operation. If in doubt, seek advice.
– In general terms, this tool is not suitable for underwater use or
use in explosive environments — seek advice from manufacturer.
– Try to make sure that the work area is clear to enable the work
task to be performed safely. If practical and possible, try to clear
unnecessary obstructions before starting work.
– Always use air hose and couplings with minimum working pressure
ratings at least 1 1/2 times the maximum working pressure rating
of the tool.
Work Stations
The tool should only be used as a handheld, hand operated tool.
It is always recommended that the tool is used when standing on
the 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 and be aware that when loosening fasteners the
tool can move quite quickly away from the fastener being undone.
An allowance must always be made for this rearward movement
so as to avoid the possibility of hand/arm/body entrapment.
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./6.2 bar when the tool is running
with the trigger fully depressed and the air regulator in its maximum
opening flow position. 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 a quick connect coupling directly
to the tool, but use a whip or leader hose of approximately 12
inches length. Do not connect the tool to the air line system without
Operating
The output of the impact wrench in prime working condition is
governed by mainly three factors:
a) the input air pressure;
b) the time the impact wrench is operated on the joint. Normal time
for joints of average tension requirement 3 to 5 seconds;
c) the setting of the air regulator for a given joint at a given pressure
operated for a given time.
The air regulator can be used to regulate the output of the impact
wrench if no other means of control is available. It is strongly
recommended that an external pressure regulator, ideally as part
of a filter/regulator/lubricator (FRL), is used to control air inlet
pressure so that the pressure can be set to help control the tension
required to be applied to the threaded fastener joint.
There is no consistent, reliable torque adjustment on an impact
wrench of this type. However, the air regulator can be used to
adjust torque to the approximate tightness of a known threaded
joint. To set the tool to the desired torque, select a nut or screw of
known tightness of the same size, thread pitch and thread condition
as those on the job. Turn air regulator to low position, apply wrench
to nut and gradually increase power (turn regulator to admit more
air) until nut moves slightly in the direction it was originally set.
The tool is now set to duplicate that tightness, note regulator setting
for future use. When tightening nuts not requiring critical torque
values, run nut up flush and then tighten an additional one-quarter
to one-half turn (slight additional turning is necessary if gaskets
are being clamped). For additional power needed on disassembly
work, turn regulator to its fully open position. This impact wrench
is rated a 1/2" bolt size.
Rating must be downgraded for spring U bolts, tie bolts, long cap
screws, double depth nuts, badly rusted conditions and spring
fasteners as they absorb much of the impact power. When possible,
clamp or wedge the bolt to prevent springback.
Soak rusted nuts in penetrating oil and break rust seal before
removing with impact wrench. If nut does not start to move in three
to five seconds use a larger size impact wrench. Do not use impact
wrench beyond rated capacity as this will drastically reduce tool
life.
NOTE: Actual torque on a fastener is directly related to joint
hardness, tool speed, condition of socket and the time the tool is
allowed to impact.
Use the simplest possible tool-to-socket hook up. Every connection
absorbs energy and reduces power.
The forward and reverse control and the air regulator on this tool
are combined into a single feature and operated by air regulator/
reverse valve (12) in both forward and reverse. This valve can be
rotated to give 5 speed/power outputs (position 5 being the highest
output
position). Move reverse valve to the left for forward direction and
right for reverse direction. Ensure reverse valve (12) is in correct
position before starting the tool.
The tool incorporates an air inlet bushing (6). Check periodically
to see if this is becoming blocked as blockage will reduce the
speed and power of the tool. To clean it is necessary to remove
the air inlet bushing (6) from motor housing (1).
For best results:
1) Always use the correct size impact type socket.
Foreseen Use Of The Tool –
5000A/5000AL/5000AP
The impact wrench 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 suitable
impact type 1/2" square female drive nut running sockets. Only
use sockets which are of the impact type.
It is allowed to use suitable extension bars, universal joints and
socket adaptors between the square output drive of the impact
wrench and the square female drive of the socket.
Do not use the tool for any other purpose than that specified without
consulting the manufacturer or the manufacturer’s authorized
supplier. To do so may be dangerous.
Never use an impact wrench as a hammer to dislodge or straighten
cross threaded fasteners. Never attempt to modify the tool for other
uses and never modify the tool for even its recommended use as
a nutrunner.
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, depressurizing
the line by pressing the throttle lever on the tool. Disconnect the
air line and pour into the hose adaptor 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 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. When lubricating, also ensure that the air strainer in hose
adaptor is clean.
It is recommended that joint tightness of the threaded fastener
assembly be checked with suitable measuring equipment.
It is recommended that the air pressure at the tool while the tool is
running is 90 p.s.i./6.2 bar.