
B-70314EN/02 5.MAINTENANCE
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5.3.2 Turbo Blower Oil
(1) Check method
Check the amount of oil in the turbo blower while referring to the
figure below. The oil level should be between graduations H and
L.
Fig.5.3.2(a) Turbo blower oil gauge
NOTE
This check should be made when the oscillator is at
a rest. When the turbo blower is running, it is
impossible to check the amount of oil correctly.
(2) Replenishment method
1) Remove the hexagonal-head screw from the oil inlet with a
17 mm wrench. Be careful not to lose the O-ring on the
screw.
CAUTION
Before supplying turbo oil, stop the oscillator
according to the correct procedure and turn off the
power. If the oscillator is not stopped by the correct
procedure, the pressure in the turbo blower
becomes negative. Opening the oil inlet under such
a condition lets a large amount of air get in the
turbo blower. An air flow caused this way can bring
oil mist into the oscillator, possibly resulting in the
optical mirror getting dirty.
2) Take a bottle of oil from the oil kit (A04B-0800-K326).
Unscrew the nozzle from the bottle, remove the inner cap,
then replace the nozzle. Insert the nozzle into the oil inlet
and supply oil. Be careful not to allow dust to enter
through the inlet. This task is made easier by attaching the
tube (included in the oil kit) onto the nozzle. Supply oil
until the oil reaches the 3/4 level relative to the L indication
when viewed through the oil window. Note that both too
little and too much oil can result in mechanical failure.