PREVENTIVE MAINTENANCE CHECKS AND SERVICES Continued
Table 18. Preventive Maintenance Checks and Services for M548A1/M548A3, After
ITEM TO BE
Lifting Sling (if
Reference: TB43-0142, Safety Inspection
and Testing of Lifting Devices, 28 Feb 97
a. Check that beam stops are in place on each end
of I-beam. Replace missing stops. Inspect beam
lock and trolley lock for proper operation.
b. Inspect/check hoist chains and hook for
evidence of wear, damage, bends or distortions.
Check for any grabbing or binding of chains.
Bent hook or
c. Check lifting sling. Webbing must be of
uniform thickness. Inspect for evidence of
chemical damage, snags, punctures, tears, cuts
and broken or worn stitching.
d. Check sling end fittings for distortion or sharp
edges. Replace damaged sling.