Answer :
Final answer:
The safest maximum gap between the wheel and the work rest of a pedestal grinder is 1/8 inch. This distance must be maintained to prevent jamming and potential accidents.
Explanation:
The maximum safe gap between the wheel and the work rest on a pedestal grinder should be no more than 1/8 inch (3.175mm). This is to prevent objects from becoming jammed in the gap, which could lead to dangerous wheel breakage and potential injury. It is important to adjust the gap regularly to maintain this safe distance as the wheel wears down during use.