12 – English
nano
TM
Figure 15 – Encountering an Obstruction: Do
Not Use Camera Head to Clear
Obstructions
A slow steady push through the system works best. At
changes in direction such as P-traps, Tees, Ys, and
elbows use a quick push to “pop” the camera head
around the bend by pulling the camera head back from
the bend approximately 8 in [20 cm] and then quickly
thrusting it through the bend. Be as gentle as possible
and do not use more force than required. Excessive force
can damage the camera head. Do not hammer or snap
the camera through bends. Do not force the camera
head through if there is a large amount of resistance.
Be especially careful through Tees, as the push cable
could fold over in the Tee and make retrieval difficult or
impossible.
Watch to make sure that the drum does not hang up
during use. If the drum hangs up and the push cable
continues to be pulled from the nanoReel, the push
cable will tighten around the hub of the drum, jam inside
the drum, and stress the push cable.
Figure 16 – Avoid Pulling at Sharp Angles
When inspecting the line, try moving the camera head
past the area to be inspected and slowly pull it back for
better results. Pulling the camera head back may provide
more controlled and consistent viewing. When pulling the
push cable, keep clear of sharp edges and do not pull at
sharp angles to the inlet to prevent damage to the push
cable. If needed, jiggle the camera head in standing
water to rinse any debris from the camera window.
Depending on what is encountered during the inspection,
it may help to add, remove, or change the position of ball
guides on the camera head. Ball guides may be able
direct the camera towards a section of the line (such as
the top), raise the camera head out of the liquid in the
pipe, and help negotiate bends; especially at tight turns
such as in a toilet flange (
See Figure 17, Figure 18, and
Figure 19).
See the “Installing Ball Guides” section in
this Operator’s Manual for more information.
Figure 17 – Camera Head Blocked in Turn
Figure 18 – Camera Head with Ball Guide in Turn
Figure 19 – Successful Passage
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