A SERVICE OF

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12 ► GR60 User Manual
4. Disengage the safety thumb latch (42) and squeeze
the trigger momentarily. If the grinder does not operate,
the hoses might be reversed. Verify correct connection
of the hoses before continuing.
5. Start the grinder and move the grinding wheel or
cone to the work surface.
6. Grind a small amount of material at a time.
7. As the grinding stone wears, adjust guard height by
depressing the guard latch (26) and rotate the guard to
lower or raise height.
COLD WEATHER OPERATION
If the grinder is to be used during cold weather, preheat
the hydraulic uid at low engine speed. When using the
normally recommended uids, uid temperature should
be at or above 50° F/10° C (400 ssu/82 centistokes) be-
fore use.
OPERATION