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5.Confirming condition of the environment:
Confirm that the work site is placed under appropriate conditions conforming to prescribed precautions.
6.Fitting and adjusting the wheel guard
The wheel guard is a protective device to prevent injury should the cutting wheel shatter during operation. Ensure that the guard is properly fitted and fastened before commencing cutting operation. By slightly loosening the setting screw, the wheel guard can be turned and set at any desired angle for maximum operational effectiveness. Ensure that the setting screw is thoroughly tightened after adjusting the wheel guard.
7.Cutting wheel
Ensure that the cutting wheel to be utilized is the correct type and free of cracks or surface defects. Also ensure that the cutting wheel is properly mounted and the wheel nut is securely tightened. Refer to the section on “Cutting Wheel Assembly”.
8.Conducting a trial run
Before commencing cutting operation, the machine should be given a trial run in a safe area to ensure that it is properly assembled and that the cutting wheel is free from obvious defects.
Recommended trial runs durations are as follows:
After replacing
cutting wheel ......... 3 minutes or more Prior to starting
routine work ........... 1 minute or more
9.Confirming the lock pin.
Confirm that the lock pin is disengaged by pushing lock pin two or three times before switching the power tool on (See Fig. 2).
Wheel nut
Inner washer
Cutting wheel
Wheel washer
Wheel guard
Spindle
Lock pin
Fig. 2
PRACTICAL CUT-OFF MACHINE APPLICATION
1.Cutting force
To prolong the life of the machine and ensure a first class finish. It is important that the machine should not be overloaded by applying too much force.
2.Precautions immediately after finishing operation
After switching off the machine, do not put it down until the cutting wheel has come to a complete stop. Apart from avoiding serious accidents, this precaution will reduce the amount of dust and swarf sucked into the machine.
CAUTION:
After operation, always place the machine so that the cutting wheel faces upward. When the machine is not in use, the power source should be disconnected.
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