User manual
28 RUSH MH 4 Beam User Manual
If one or more of these factors is present, inspect fixtures within their first 100
hours of operation to see whether cleaning is necessary. Check again at
frequent intervals. This procedure will allow you to assess cleaning
requirements in your particular situation. If in doubt, consult your RUSH by
Martin dealer about a suitable maintenance schedule.
Use gentle pressure only when cleaning, and work in a clean, well-lit area. Do
not use any product that contains solvents or abrasives, as these can cause
surface damage.
To clean the fixture:
1. Disconnect the fixture from power and allow it to cool for at least 60
minutes.
2. Vacuum or gently blow away dust and loose particles from the outside of
the fixture and the air vents at the back and sides of the head and in the
base with low-pressure compressed air.
3. Clean optical components by wiping gently with a soft, clean lint-free cloth
moistened with a weak detergent solution. Do not rub the surface hard: lift
particles off with a soft repeated press. Dry with a soft, clean, lint-free
cloth or low-pressure compressed air. Remove stuck particles with an
unscented tissue or cotton swab moistened with glass cleaner or distilled
water.
4. Check that the fixture is dry before reapplying power.
Changing the primary fuse
If the fixture is completely dead, the fixture’s primary fuse F1 may have blown
and it may be necessary to install a new fuse. This fuse is located in a
fuseholder next to the Mains OUT socket on the connections panel. See 7 in
‘Fixture overview’ on page 13.
To change the fuse:
1. Disconnect the fixture from power and allow it to cool for at least 60
minutes.
2. Use a large flat-bladed screwdriver to open the fuseholder.
3. Replace the fuse with one of the same type and rating only.
4. Reinstall the fuseholder cap before reapplying power.
Service and repairs
There are no user serviceable parts inside the fixture. Do not open the
housing.
Do not try to repair the fixture by yourself as this may result in damage or
malfunction, and it may potentially void your product warranty. The fixture