910106 – Web Grinder
Phone: (262) 637-9681
1.2019 Rev 2
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16
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Tool Trigger and Trigger Lock
1. Check that trigger lock presses into handle tube
easily and returns to locking position when
released (Arrow A).
2. Check that trigger cannot be activated with the
trigger lock in the released position.
3. With the trigger lock pressed into the handle
tube, pull the trigger to the tube.
The trigger should return to the OFF position
when released (Arrow B).
If the trigger or trigger stop sticks or does not operate
easily, check for obstructions.
If the trigger lock does not return to the OFF or lock
position when released, check the return springs.
Wheel Guard and Wheel Installation
Do not operate a tool if the trigger or trigger lock is not working
properly. Failure to follow these instructions may lead to severe
personal injury.
Do not operate tool without the wheel guard in place. Failure to
follow these instructions may lead to severe personal injury.
Inspect the wheel guard and fasteners for damage. Repair any damage before using the tool.
Wheel inspection
Before mounting all wheels should be visually inspected by the operator for damage and cracks.
Do not use damaged or cracked wheels.
A Ring Test may be used to check for cracks in the wheel, which are not visible to the naked eye.
1. To perform a Ring Test, suspend the wheel from the hole on a small pin or finger.
2. Tap the wheel gently with a non-metallic implement such as a screwdriver handle.
3. The best spot to tap is about 45-degrees either side of the vertical center ling 1" or 2" from the
periphery.
•
An undamaged wheel will give a clear tone.
•
If cracked there will be a dead sound instead.
Check that the surface of the blotters and backups are free of dirt and other foreign contaminants.
Use only wheels, which meet or exceed the requirements of the tool.
Wheel Backups
Inspect the backup hole and flange before installation. The backup should be free of burrs and the
bearing surfaces flat and running true when mounted on the drive spindle.