Daktronics DBH-150 - Manual (Page 14)

10
ELECTRICAL INSPECTION
Under normal conditions, the Daktronics Banner Hoist should
provide years of maintenance free service. Daktronics recommends
periodic electrical inspections for corrosion and wear, particularly
in high temperature and/or high humidity environments. Should
issues occur or if the hoist is exposed to water or other fluids,
immediately disconnect incoming power and contact Daktronics for
technical assistance.
Figure 16 shows the proper wiring for the Banner Hoist power
panel. If electrical issues are observed, this is where technical
assistance will focus.
Figure 17 displays the Banner Hoist RF Receiver and the
schematic of the wiring in the power panel in Figure 16 which
will be used as a reference when receiving technical assistance.
VISUAL INSPECTION
A quick visual inspection can provide valuable information about
how the hoist is operating and whether further maintenance is
required. Periodical visual inspections should be completed in
between scheduled maintenance inspections.
When visually inspecting the hoist, look for components that
have become loose or possible failures such as cracking in the
metal framework or other components. In addition, check for the
following:
· Cables should be tight around the drum, in the correct grooves
and not overlapping
· Cables should follow the correct path from the drum through the
cable guide assembly
· Chains are fitted properly around the sprockets
· Adequate lubrication on the chains and acme screw parts
· Intact wire terminations
· No frayed wires
· No visible corrosion or wear on or around the electrical
components
Figure 16: Banner Hoist Power Panel
Figure 17: Banner Hoist RF Receiver