Stanley GR30 User Manual page 12

b. Make sure the wheel is free of dirt and other foreign particles, especially the surfaces that contact the tool
and jam nut.
c. Check the wheel for damage or wear.
6. If the wheel does not include an integral thread, use a depressed-center wheel adapter in the hole on the wheel.
7. Install the grinding wheel:
a. Thread the grinding wheel or adapter on the shaft and tighten using appropriate wrenches.
b. Screw the jam nut on the output shaft.
c. Tighten the nut securely using two open-end wrenches. Place one wrench on the flats of the output shaft
and the other on the jam nut.
d. Ensure that the dimensions of the abrasive product are compatible with the grinder and that the abrasive
product fits the spindle. Also ensure that the thread type and size of the abrasive exactly match the thread
type and size of the spindle.
Note: If the grinding wheel is provided with reducing adaptors or busings, ensure that the adaptor or
bushing does not contact the face of the flange and that the clamping force provides sufficient rotational
driving action to prevent the abrasive product from slipping. In cases where flanges are supplied for several
types or sizes of abrasive, always fit the correct flange for the abrasive being used.
HYDRAULIC HOSE CONNECTION
Proper installation of the hydraulic hoses is extremely important for safe, reliable operation of the tool. Make sure
the hoses are securely attached to the tool before turning on the hydraulic power.
Note: If possible, connect the free ends of the hoses together when not in use. The pressure increase in
uncoupled hoses left in the sun may make them difficult to connect.
12 ► GR30 User Manual
OPERATION
Never over-tighten the grinding wheel jam nut by
impacting either wrench with a mallet or hammer.
Sufficient torque is attained by hand tightening the
nut with two open-end wrenches.
Never use a chipped, damaged or worn grinding
wheel.