Product manual

Maintenance and Repair
6-4
Part 1105120-01
E 2013 Nordson Corporation
Lamphead Maintenance and Repair
Table 6-1 lists typical maintenance guidelines and replacement schedules
for the components of the CW2 10-inch lamphead.
Recommended maintenance to the lamphead consists of changing bulbs
and reflectors and cleaning or replacing filter material. It is also
recommended that reflectors be cleaned periodically.
Table 6-1 Typical Lamphead Maintenance Schedule
Component Maintenance Guidelines Replace
component
UV Bulb Bulbs are warranted for a specific number of hours when operating
under the manufacturer specifications (hours vary with differing
bulbs). Depending on your application, some installations may
provide acceptable curing well beyond the warranty.
NOTE: Do not touch or handle the bulb with bare hands. Wear
clean latex or nitrile gloves. Clean the bulbs with isopropyl alcohol
and a clean lint-free cloth or tissue to remove any fingerprints or
other contamination.
as needed
Magnetrons The magnetrons are warranted for a specific number of hours when
operating under the manufacturer specifications. Each application
will be different and, in many cases, the magnetron life will last well
beyond the warranty.
as needed
Screen The screen should be free of all debris such as cured material, lint,
dust or anything that might impede cooling or UV transmittance.
as needed
Do not use damaged screens. This can result in RF
radiation leakage.
Reflectors
DO NOT USE A CLEANING SOLUTION THAT CONTAINS
AMMONIA. Never use any abrasive media to clean the
reflectors. This will damage the reflector surface.
Reflector surfaces should be cleaned as needed (more frequently in
dirty environments) and at every bulb change. Wipe the reflector
surface and the cavity with a clean, lint-free cloth dipped in a
suitable solvent such as isopropyl alcohol. No residue should be left
on the reflector surface. Do not touch reflectors with bare hands;
use clean latex or nitrile gloves.
Be careful when replacing reflectors. They are made of glass and
may break if dropped or forced into position.
as needed
Filters
S Remote blower
(see Note)
S Internal blower
lamphead
Filters are designed to prevent dust and contaminants from entering
the UV equipment. Eventually, the filters become clogged and start
to impede the cooling air flow, causing excessive heat which will
result in premature failure of the UV equipment. A dirty filter can
also release contaminates into the air flow that may deposit on the
part being cured as well as the bulb and reflector.
Internal blower filters cannot be cleaned. They are coated with a
tacky material that traps contaminants.
Weekly
or as needed
NOTE: Nordson does not supply filters on the system controller or external blowers. Filters must be
supplied by the customer. For Internal blower lampheads, a filter is provided (refer to page 6-5 for
replacement instructions ). Refer to Section 7, Parts for replacement filters.