(2) Inspect all electrical cables, cords, connectors, and fittings for tightness.
Check for breaks in the insulation, abrasions, and other damage to cables and
connectors. Pay particular attention to areas where electrical cabling enters housings.
It may be subject to stress from table positioning and other mechanical motions.
(3) Examine all exterior painted or plated surfaces for evidence of
deterioration, such as scratches, chipping, and corrosion. Ensure all name plates and
warning labels are present, legible, and securely mounted.
c. Counterweight Cable Inspection. The MXT-90/15 table uses high-tensile-
strength aircraft control cables in the counterbalancing system. In normal use, these
stranded steel cables are subject to wear which could affect system safety. The cables
should be inspected no less than every six months, more often in heavily used systems.
The importance of this inspection cannot be overemphasized. To perform this
inspection, proceed as follows:
A cable failure can cause serious patient or operator injury or equipment
damage. This is especially true of the spot-film device vertical
counterbalancing system in the tower. Worn or damaged cables cannot
be repaired. They must be immediately replaced if there is any
evidence of broken or frayed strands, kinks, corrosion other than on the
surface, or weakness in any mechanical fitting. The cable replacement
procedure is discussed in Lesson 3, paragraph 3-4.
Remove the back cover from the tower.
Move the spot-film device to its highest possible vertical position.
(3) The vertical carriage is connected to the sides of the counterweight
holder by means of two cables; one at each end. Visually inspect both of these cables,
looking for evidence of kinks. Kinks usually result from twisting and appear as strand
separation and distortion in the shape of the cable.
(4) Inspect the cables for evidence of rust or corrosion. Light surface rust
and corrosion can be removed without replacing a cable. The cable must be replaced if
rust or corrosion has penetrated its interior.
(5) Examine the attachments at both ends of the cables. Make sure there is
no evidence of kinking and all mechanical fittings are sound.