i. For 150mm diameter pipes, use the small wheels and short axles,
and remove the ballast weight (see Figure 25.
Figure 25: Trolley Fitted with Small Wheels
ii. For 225mm and 300mm diameter pipes, use the large wheels and
long axles, and attach the ballast weight if necessary.
Figure 26: Trolley Fitted with Large Wheels
d. Maintaining the Camera Trolley
It is important to look after the condition of your trolley to ensure a long lifespan.
Do not overtighten the bolts for the trolley wheels, or the M3 x 25mm screws
fastening the skid to the trolley base. Do not trap any dirt in the thread on the
camera skid when tightening, as this could damage the thread. Do not use the
trolley to clear blockages within the pipe.
After use, clean the trolley with a damp cloth, and remove the wheels and clean
any excess dirt present on the axle.
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