Yagang SPOT 250 User Manual - page 18
Beampath:
9. Maintenance and cleaning
It is absolutely essential that the fixture is kept clean and that dust, dir t and smoke-fluid
residues must not buildup on or within the fixture. Otherwise, the fixtures light-output will
be significantly reduced. Regular cleaning willnot only ensure the maximum light-output,
but will also allow the fixture to function reliably throughout its life.A soft lint-free cloth
moistened with any good glass cleaning fluid is recommended, under no circumstances
should alcohol or solvents be used!
The front objective lens will require weekly cleaning as smoke-fluid tends to building up
residues, reducing thelight-output very quickly. The cooling-fans should be cleaned
monthly.
The gobos may be cleaned with a soft brush. The interior of the fixture should be cleaned at
least annually using a vacuum-cleaner or an air-jet.
The dichroic colour-filters, the gobo-wheel and the internal lenses should be cleaned
monthly.
To ensure a proper function of the gobo-wheel , we recommend lubrication in six month
inter vals. The quantity of oil must not be excessive in order to avoid that oil runs out when
the gobo-wheel rotates.
There are no ser viceable parts inside the device except for the lamp and the fuse.Please refer
to the instructions under "Fitting/Exchanging the lamp".Maintenance and service
operations are only to be carried out by authorized dealers.
If the lamp burns out, the fine-wire fuse of the device might fuse, too. Only replace the fuse
by a fuse of same type and rating.Before replacing the fuse, unplug mains lead.
1) Unscrew the fuseholder on the rear panel of the base with a fitting screwdriver from the
housing (anti- clockwise).
2) Remove the old fuse from the fuseholder.
3) Install the new fuse in the fuseholder.
4) Replace the fuseholder in the housing and fix it.
DANGER : Disconnect from the mains before starting anymaintenance work
Replacing the fuse
Procedure: