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12 ► FG10/PG05 Service Manual
OPERATION
6. Grind a small amount of material at a time adjust-
ing the grinding wheel as necessary by turning the
handwheel.
Note: If the grinder is not loaded against a work sur-
face when the trigger is released, the wheel will take
5-10 seconds to come to a complete stop. Avoid un-
intentional contact of the grinding wheel during the
coast down period.
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.
Damage to the hydraulic system or grinder can result
from use with uid that is to viscous or too thick.
PREVENTATIVE MAINTENANCE
1. The gears and bearings in the ram, spindle, and
housing assemblies should be regreased every 6
months or 500 hours, This procedure must be ac-
complished by a trained technician.
2. After each servicing, measure the spindle speed
(rpm - revolutions per minute) at 12 gpm/45 lpm in-
put. The nominal speed is 4000, not to exceed 6000
rpm. This procedure must be accomplished by a
trained technician.
3. Inspect the spindle and drive ange for signs of
wear or damage. Runout should not exceed .004
in./.1 mm TIR on threads or .002 in./.05 mm TIR on
arbor diameters and faces.
4. Check hoses and ttings weekly for any evidence of
leakage, cover wear, cracking or cuts. If any of these
defects are found, discontinue use of the tool imme-
diately and have the defects repaired or replaced by
a trained technician.
5. To grease between main housing bore (item 73) and
the ram outer diameter (item 26) use CAUTION only
one to two pumps of grease are required at these
locations, excess grease will lockup feed assembly
(See gure 4 below).
Figure 4