C550c Operation Manual
6 Operating the system
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Caution: Choose high-quality rope that is certified to hold at least 50kg / 110lb (for P354 crawlers) or
100kg / 220lb (for P356 crawlers).
Warning! Clean and sanitize the crawler straps with a suitable disinfectant (such as Presept from
Johnson & Johnson) at regular intervals to help prevent the risk of biological contaminations from foul
water sources. Use appropriate gloves when cleaning the system.
Cable deployment rollers
The optional cable deployment rollers help protect the cable from scoring on concrete and other abrasive
materials. CUES recommends that you always use cable deployment and removal rollers.
Use of a manhole roller and the protective downhole tiger-tail rollers is demonstrated below. Note the
position of the tiger-tail roller below the surface.