Leica OH4, Service Manual, Page: 210 / 264

Care and maintenance
68 Leica M525 OH4 / Ref. 10 714 367 / Version -
Changing bulbs
➩
Open the access door (2) for lamp inserts.
The illumination push-button (item 2, page 7) flashes orange.
Caution 25
Danger of skin burns!
The lamp insert is very hot.
➩
Before changing the lamp, make sure that the lamp
insert has cooled down.
➩
Remove the defective lamp insert (1 or 3) and install a new
lamp insert (spare part no. 10 448 022).
When installing the lamp insert, make sure that the
arrow (4) is pointing to the left.
➩
Close the access door.
The illumination push-button (item 2, page 7) lights up green.
1 2
3
4
A dialog window opens when the lamp power drops
below the recommend minimum level.
➩
Press the "Close" button.
The dialog window is closed.
➩
Replace defective lamps.
Checking the timer for the xenon lamp
A timer window (5) for the xenon lamp is located on the main
illumination fitting. It displays the operating hours of the xenon
lamp.
We recommend that a xenon lamp with a remaining
useful life of 10% be replaced before commencing an
operation.
5