NEC NP41 - Manual (Page 83)

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7. Mantenance
Ths completes the lamp replacement.
Go on to the coolng pump replacement.
To replace the cooling pump:
6. remove the cooling pump.
(1) Loosen the cooling pump cover screw until the screwdriver goes into a freewheeling condition.
- The cooling pump cover screw is not removable.
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5. reattach the lamp cover.
Tighten the lamp cover screw.
Be sure to tighten the screw.
4. Push the part as shown on the drawing and insert a new lamp housing until it is plugged into the socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp NP09LP (NP62/NP61) or NP08LP (NP52/NP41).
Order this from your NEC dealer.
secure it in place with the two screws.
NOTE: Tighten the two screws alternately until both screws are completely tightened. Failure to do this can result in air leak
from the cooling pump, causing the pump error. ( → page 76 )
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