Inspection and Maintenance
Item
Method
Interval
a. Check wires for fraying.
Visual
90 Days
Grounding Wires
and Post
b. Check attaching nuts and
post for stripped threads.
c. Check wire terminals,
nuts, and washers for
corrosion, and for secu-
rity of attachment.
Check that all lubrication
90 Days
Visual
Lubrication
fittings are installed and
Fittings
undamaged. See figure
tion fittings.
Air Inlet Silencer
Visual
a. Check clamps for cracks
180 Days
and stripped threads.
b. Check chain for worn or
broken links.
c. Check flexible coupling
for tears, cuts, and wear.
d. Check elbow for dents and
cracks.
e. Check all welds for cracks.
f. Check insulation and
screens for tears, secu-
rity of attachments, and
for accumulation of
foreign particles which
may be ingested by the
APU.
Figure 4-4.
Table of Periodic Inspection and Maintenance (Sheet 5 of 8)
4-7
