8 Testing The Machine Before First Use - Oregon 720-120 Original Instruction Manual

720-120
6 Next, insert the appropriate wheel onto the
hub and, using moderate pressure with your
hands, secure the wheel attachment nut to
hold the wheel in place.
WARNING Over-tightening the wheel
can cause it to break.
7 Finally, reposition the shield and secure it in
place with the retaining screw.
WARNING Never start the grinder
without the wheel guards in place.
8 Before using the grinder, you'll need to
check to ensure the wheel is properly
installed.
9 With the power off, gently spin the grinding
wheel and check for wheel wobble.
10 Conduct a final check for proper assembly
by turning on the main power and switching
on the wheel power switch while standing
to the side. Look for vibrations due to wheel
oscillation or other interference.
WARNING Always keep bystanders
at a safe distance from a grinder while in
operation.
CAUTION The grind wheel is designed
to rotate away from the operator. This
safety feature reduces the likelihood of
sharp pieces of shrapnel striking the
operator should the wheel fracture or break
during the grinding process. Therefore,
do not stand behind the grinder when it is
operating.
Note: To get the best performance from
your grinder, ensure the grinding wheel is
centered over the vise. Center the grinding
wheel following the instructions on step 14
of section 5.2.5, "Make the grinding settings."
585124ab_Auto Chain Grinder_OM_720-120.indd 23

4 8 Testing the machine before first use

1 Make sure that all packing materials are
removed.
2 Make sure that the air hoses and wires are
correctly connected.
3 Make sure that the machine is securely
fastened to the stand.
4 Make sure that the machine is on a level
surface; if the machine wobbles, or if the
surface is not level, attach the stand to the
floor with screws.
5 Perform a sharpening test on the machine
to ensure it functions correctly. See section
7.2, "Sharpening test."
4 Installation
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