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8009441/YN36/V3-0/2015-08| SICK OPERATING INSTRUCTIONS|GM35
Subject to change without notice
MAINTENANCE
8.2 Preparation and general preparatory work
▸ Have the following equipment available for service work:
– At least the following tools: 2 x 24 mm open-end or box wrenches, 1 x 19 mm open-end
or box wrench, Allen key set, insulated screwdriver set for electrical connection work
– Optical cleaning cloth without detergents, e.g. Part No. 4 003 353
– Distilled water, clean cloths and, if necessary, a dusting brush
– Replacement parts and consumables:
Replacement filter for purge air units, Part No. 5 306 091, replacement sealing rings (if
necessary) to seal the connection between the SR-unit, reflector and purge air fixture; if
a weatherproof cover is used, a quick-drying epoxy resin adhesive may be necessary to
refix the securing pins.
– If the duct is pressurized, a suitable cover is required for the duct-side flange with tube
to prevent gases from escaping from the duct when the SR-unit is opened.
8.3 Maintenance work on SR-unit and reflector
8.3.1 Visual inspection and enclosure cleaning
▸ Check the enclosure of the SR-unit for damage such as cracks.
▸ If a weatherproof cover is used, check its condition and whether the securing pins on the
top of the SR-unit are secure. If necessary, apply new epoxy resin adhesive.
▸ Clean the entire enclosure of the SR-unit when contaminated.
▸ Inspect cables thoroughly for damage and pay particular attention to any signs of
abrasion or bending at cable ducts. Prefabricated cables are available as spare parts.
WARNING: Health risk through contact with toxic gases
The device contains enclosed potentially dangerous gases that can escape
due to a defect or leak.
If a leak occurs, the concentrations inside the enclosed device can increase up
to the following concentration.
CO and N
2
O: max. total volume 10 ml
Max. concentration inside the device with a leak (defect): 350 ppm
▸ Check the condition of the seals on the equipment/module regularly.
▸ Only open the equipment when good ventilation is available, especially
when a leak of one of the equipment components is suspected.
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