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Hitachi CM14E Manual

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WARNING
z Do not grind with a cut-off wheel or put
pressure on the sides.
z Do not mount wheel if blotters are
damaged. Do not destroy cushioning
effect by making mounting bolts too tight.
Never fasten while applying your weight.
Otherwise the thread could be broken.
Proper torque is 20 N•m (200 kgf•cm).
z Examine wheel carefully before use. Do
not use if wheel is warped, damp, cracked,
chipped or cutting area shows heat
discoloration.
z A wheel once dropped cannot be trusted.
Discard a wheel if you drop it.
Refer to Chart
Wheel Blotters and Mounting Flanges
Wheel blotters attached to both sides of reinforced
wheels are cushions needed to equalize the
pressure of the mounting fl anges from wear if
slippage between the wheel and the fl anges
occurs. The blotters are 108 mm diameter. Take
care that the blotters do not become gouged or
deeply scratched and that there is no foreign
material on them when mounting the wheel.
Emergency Applications
The cutter has applications in fi re fi ghting and
rescue work. This unit, however, can cause
sparks and should not be used in an explosive
atmosphere or where it could start a fi re.
Ring Testing Wheels
Cracks or defects in a wheel may not be visible. To help in verifying that a
wheel is ok to use, a “ring test” must be made immediately before mounting
all new or used wheels.
Put your fi nger through the mounting hole to support the wheel. Use a non-
metallic handle of any small tool or a small piece of wood to lightly tap (do
not hit) the wheel in the locations shown in the illustration. Do not tap wheel
on the edge. Uncracked wheels will make a ringing sound, wheels with
cracks or concealed cracks will make a dull “clunk”.
IMPORTANT
If a wheel being “ring tested” is dirty or damp or
is tapped at the vertical center line, the resulting
sound will be muffl ed and not reliable.
“Tap” Here
Center Line
45°
45°
45°
Blotter 108 mm
20 mm
(22 mm)
355 mm
45°
Wheel Dimensions
Wheel Diameter
Mounting Hole
Diameter
Thickness
Abrasive Wheel: 355 mm
20 mm
(22 mm with Adapter)
4 mm
Diamond Wheel: 355 mm
20 mm
(22 mm with Adapter)
3 mm
CM14E_WE_all.indb 12CM14E_WE_all.indb 12 2008/02/05 21:09:312008/02/05 21:09:31
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