Stanley GR30 User Manual page 12

1. Make sure the hydraulic system control valve is in
the OFF position when coupling or uncoupling the
hoses. Failure to do so may result in damage to the
quick couplers and cause overheating of the hy-
draulic system.
2. Before installing the hoses, wipe the fittings with a
clean, dry lint-free cloth to remove any dirt or mois-
ture. Dirty connections can contaminate the hydrau-
lic fluid, causing rapid wear and early failure of in-
ternal parts.
WARNING
Reversing the direction of hydraulic flow to the tool
can cause severe personal injury or damage to the
Make sure the input and output hoses are connected
to the correct port on the tool.
3. If hose couplers are used, check the flow indicators
(arrows) stamped on the couplers to ensure oil flows
in the proper direction. The female coupler on the
tool is the inlet coupler.
4. It is a good practice to connect the output (return)
hose first and disconnect it last to minimize or avoid
trapped pressure within the tool.
a. Connect the output hose to the OUT port on the
tool.
b. Connect the input hose to the IN port.
c. Be sure all hose connections are tight.
TEST
Test the grinder to verify the hoses are connected cor-
rectly.
1. Move the hydraulic system control valve to ON.
2. Squeeze the grinder trigger momentarily. If the tool
operates properly, move the hydraulic system con-
trol valve to OFF.
OPERATION
PRE-OPERATION CHECKOUT
Careful inspection of the tool and hydraulic system be-
fore startup is important for safe, reliable operation of
the tool.
12 ► GR30 User Manual
OPERATION
equipment.
DAILY INSPECTION
The following items should be checked daily at the start
and the end of each work shift.
WARNING
Maintaining or repairing the tool with the hydraulic
system before startup is important for safe, reliable
operation of the tool.
To prevent accidental startup while maintaining or
servicing the tool, disconnect the hydraulic power
before beginning task.
Make sure the hydraulic system control valve is in the
OFF position and the hoses are disconnected before in-
specting the grinder.
1. Inspect the grinding wheel and guard:
a. Make sure the correct grinding wheel is installed
for the job. If not, follow the instructions for the
Grinding Wheel Replacement. Refer to the
Specifications Section for the grinding wheel re-
quirements.
b. Inspect the wheel for chips, cracks, or other
damage. For maximum tool performance, re-
place the wheel if it is worn or defective.
c. Inspect the wheel guard for cracks or other
structural damage and replace if necessary.
d. If necessary, adjust the position of the wheel
guard by loosening the clamp.
e. Check the capscrew(s) on the wheel guard for
tightness.
2. Inspect the cross handle:
a. Make sure the cross handle in screwed tightly
into the main body housing.
b. Clean any oil from the cross handle to ensure
a firm grip.
3. Check the trigger mechanism:
a. Make sure the trigger operates smoothly and is
free to travel between the ON and OFF posi-
tions.
b. Make sure the grinder stops when the trigger is
released.
4. The tool should be clean, with all fittings and fasten-
ers tight.