Kowa VX-10a, Instruction Manual, Page: 49 / 64

7. Maintenance and inspection
Maintenance and inspection
7
P7-3
7-5 Replacing observation lamp
with a new one
1) Turn OFF the power switch before unplugging from the power outlet.
2) Loosen the light source cover’s screw by coin or flathead screwdriver
for removal.
Make sure the observation lamp has been sufficiently cooled off
before proceeding to the subsequent steps.
3) For removal, loosen the inner black lamp cover’s screws by coin or
flathead screwdriver .
4) Remove the observation lamp from its socket while holding the
lampshade by hand.
5) Press down a new observation lamp deeply into the socket to fit it
securely, with its shade being held by hand, while you must be careful
about the direction in which the shade’s protrusions are facing. Make
sure that the protrusion is securely fitted into the groove.
6) Tighten the lamp cover’s screws again to fit it.
7) Fit the light source cover and tighten its fitting screw.
Direction in which the lamp is
4) Remove the lamp 5) Replace with new lamp facing Location of protrusion
• Remove the observation lamp straight from the direction of the two pins located at its base. Fit the new lamp
in the socket without applying any twisting force.
• Press down the observation lamp deep into the socket to fit it securely.
• Fit the lamp cover while taking care that excessive stress will not be exerted upon the socket’s cord.
• Securely fit the shade’s protrusion into the groove to keep the lamp from giving uneven illumination during
observation.
• Do not touch the observation lamp bulb in the shade with your bare hands. Otherwise, lamp’s useful life will
be made shorter due to burning of finger’s fat on hot lamp surface.
The light source cover ’ s screw The light source cover ’ s screw
2) Remove the cover
3) Remove the inner cover
Join the protrusions
together
Warning
Unplug
When replacing with new observation
lamp, be sure to turn OFF the power
switch before unplugging from the power
outlet. Otherwise, there is a fear of elec-
trical shock.
Warning
High-voltage
Caution
Prohibitory
Warning
High-temperature
Do not replace the observation lamp im-
mediately after use.
When replacing the observation lamp,
be sure to turn OFF the main power
switch and unplug it from the power out-
let, and wait for 30 minutes or more.
Do not touch the observation lamp bulb with your bare
hands. Otherwise, the lamp may have a lower quantity
of light and a shorter useful life.