P350 Operation Manual 46
. 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.
Pearpoint recommends that you always use cable deployment and removal rollers.
Figure 4.9 demonstrates the use of a manhole roller and the protective downhole tiger-tail rollers. Note the position of
the tiger-tail roller below the surface.
Figure 4.9: The use of rollers to reduce cable wear
Distance counter and Auto Stop point
Once you have deployed and positioned the crawler in the manhole, using manhole rollers to protect the cable and
ensuring that the cable protection spring has cleared the drum rollers, you should zero the distance counter.
The zero (0.0) position is used to decide when to stop the system when reversing the crawler. This is a safety feature.
You can reset the counter to zero at any time during operation by pressing the ▲ and ▼ keys simultaneously or by
pressing F10.
You can also set a different stop point called AUTO STOP. The system will stop reversing when this stop point is
reached.
To set this limit: move the crawler to desired counter position, go to MENU > SETUP > EQUIPMENT > AUTO STOP.
Please note that the Auto Stop position is saved by the system and it will be active until is reset.
To reset the Auto Stop point: zero the counter and set this to become the new Auto Stop limit.
You can also enter a new distance (up to ±327m).
1. Press F9.
2. Enter the distance and press OK to confirm.
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