Universal Air Tools UT8176 User Manual

Operator Instructions
Air Pressure
Recommended Working
6.3
bar
90
PSI
Recommended Minimum
n/a
bar
n/a
PSI
Maximum
7.0
bar
100
PSI
Personal Safety Equipment
Use - Safety Glasses
Yes
Use - Safety Gloves Use - Safety Boots Use - Breathing Masks Use - Ear Protectors
Yes
Includes - Foreseen Use, Work Stations, Putting Into Service, Operating, Tool Maintenance and Safety Rules
Important
Read these instructions carefully before installing, operating, servicing or repairing this tool. Keep these instructions in a safe accessible place.
Manufacturer/Supplier Product Type
Universal Air Tool Company Limited Unit 8 Lane End Industrial Park High Wycombe Bucks
1/2” High-Low Torque Impact Wrench
Model No/Nos Serial No
UT8176
HP14 3BY
Tel No Fax No(01494) 883300 (01494) 883237
6,500
Cycles Per Min
1301000 - 2312000
Product Nett Weight
4.40
1.99
lbs Kg
Recommended Use Of
Balancer Or Support
No
Foreseen Use Of Tool
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 authorised 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.
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 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.
Recommended Hose Bore
Size - Minimum
Ins M/M Ft M
3/8 10 30 10
Recommended Max.
Hose Length
Noise Level Sound Pressure Level 88.0 dB(A)
Test Method Tested in accordance with
BS EN ISO 15744:2008
Vibration Level
8.2
Metres / Sec²
Test Method Tested in accordance with
BS EN ISO 28927-2:2009
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 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 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 preferably incorporating a rust inhibitor. Reconnect
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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 screen is clean. 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. For a lower air pressure the tool will give a lower output for a given setting of the air regulator set for 90 psi operation and an increased output for higher pressures. Hence it is possible that changes in supply pressure can give situations where the fastener is under or over tightened. For changes in pressure, the regulator position and application should be reassessed. It is recommended that joint tightness of the threaded fastener assembly be checked with suitable measuring equipment.
Operating
This Impact Wrench is designed to operate on 90 PSI. Lower pressure (below 90 PSI) will reduce performance of the tool. Higher air pressure (over 90 PSI) raises the performance of the tool beyond its rated capacity and could cause serious damage to the tool and the user.
This tool features a reverse switch to change the output torque direction to tighten (assemble) or loosen (disassemble) the bolt or fastener. Control the output torque direction by pushing the reverse switch button to the F (Forward) or R (Reverse) position to change the direction.
This tool features a high and low torque switch. Push the torque switch to the higher (H) or lower (L) position. In the high position torque output is 800 ft lbs and in the low position 150 ft lbs.
Fit the correct size socket to the anvil of the impact wrench. Hold the impact wrench with one hand and place the socket onto the nut/bolt to be tightened or removed. Press the trigger and stop the operation once the nut/bolt is removed or tightened.
WARNING: Once a bolt or fastener is seated, impacting for longer than five (5) seconds will cause excessive wear and possible damage to the impact mechanism. If it takes longer to tighten or loosen your bolt or fastener, we recommend the use of a larger sized impact wrench.
Tool Maintenance
It shall be the tool owner’s and/or employer’s responsibility to assure that tools are maintained in a safe operating condition. Tool maintenance and repair shall be performed by authorised, trained, competent personnel. Tools shall be disconnected from their compressed air supply before repairs are attempted. Repairs shall be consistent with the manufacturer’s recommended procedures. Tool, hoses and fittings shall be replaced if unsuitable for safe operation. It shall be the tool owner’s and/or employer’s responsibility to keep required rating markings and warnings on the tool in legible condition.
Safety Rules When Using an Impact Wrench
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) The socket used must be of the correct drive size and the "impact" type. Never use sockets other than impact type.
3) Do not use sockets with excessive wear to the input and output drives. Check that the square on any other type of drive or the impact wrench is not cracked or excessively worn before fitting or changing socket, extension, etc. Make sure that the socket is firmly fixed to the tool.
4) Always ensure that a stable position or footing is adopted before using the tool.
5) Ensure that the tool has been correctly set up on a test joint. Incorrect set up could cause joint breakage with sudden and unexpected movement of the tool.
6) Use only correct spare parts for repair.
7) Always ensure that the reverse valve is in the correct position before operating the tool. Do not run the tool unless the socket is first located on the joint.
8) Check hose and fittings regularly for wear. Use quick connect couplings only as recommended. See "Putting into Service". Do not carry the tool by the hose and ensure that the hand is away from the on/off valve when carrying.
9) Do not attempt to hold or guide the socket by hand when the tool is running.
10) Do not exceed maximum recommended air pressure.
11) Use safety equipment as recommended.
12) The tool is not electrically insulated. Do not use where there is a possibility of coming into contact with live electricity.
13) Preferably shut off the air supply before changing sockets or at least ensure that the hands are well clear of the operating trigger.
14) Take care against entanglement of moving parts of the tool with clothing, ties, hair, cleaning rags, etc.
15) 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 etc. is loosened and rides up the thread moving the tool with it.
16) Only use extensions, adaptors and universal joints suitable for use with impact wrenches.
17) If the tool appears to malfunction remove from use immediately and arrange for service and repair.
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