B-16 REGULAR INSPECTION
10.
REPLACING THE MACHINING CHAMBER OBSERVATION
WINDOW
The machining chamber observation window consists of polycarbonate and tempered glass.
Polycarbonate effectively resists strong impact. Tempered glass prevents the window becoming
opaque due to repeated cutting chip impacts. The machining chamber observation window is a
consumable part. Replace the window at regular intervals, or when it becomes necessary, by
following the instructions below.
<Replacement Interval>
5 years
<Necessary Tools>
•
Impact resistant viewing window
•
Oil- and heat-resistant silicon
•
wrench
WARNING
1.
Window safety is guaranteed for a maximum of 2 years due to
strength reduction and must therefore be replaced at specified
intervals (once every 5 years). Replace the window immediately if it
becomes cracked or when the operator's field of view is restricted.
2.
Replace the window immediately in case a strong impact was made
to the window even though the window may appear unaffected.
Once a window has been subjected to a strong impact, the strength of the
window will decrease remarkably.
3.
Due to the hardness of the window, high-speed chip impacts can
cause cracks. Small initial fractures may allow the entry of coolant
which will degrade the polycarbonate and substantially weaken the
window.
4.
Even small initial cracks caused by impact may spread across the
window due to the nature of the tempered glass.This is not a fault.
5.
To carry out maintenance or inspection work inside the machine,
make the door lock device invalid by turning the door lock
prevention key; remove the key and bring it with you when you enter
the machine. To prevent the door being locked by mistake, lock a
padlock in the hole at the end of the door lock hasp.
If the door is
closed by mistake while the door lock device is valid, the door is locked
and you may be cooped up in the machine. If the machine is started while
you are inside the machine, you will be entangled with the rotating part or
crushed between sliding parts to be seriously injured.
