(1) On Model ACC40-24PS100 trucks the
Mast Assembly, Cleaning, Inspection and
interlock spring should be 6.18 inches (156.9 mm)
a. Clean all parts in cleaning compound,
(2) On Model ACC40-24PS180 trucks the
solvent (Fed. Spec. P-D-680) and dry thoroughly.
interlock spring should be 2.62 inches (66.5 mm)
Inspect masts and channels for cracked
between hook and center of spring.
and broken welds. Repair welds. Check masts for bent
g. Inspect bearings in outer mast ears for
condition. Straighten if possible.
wear and damage. Press out old bearings and install
c. Inspect crosshead bearing for wear and
new bearings if bearings are worn or damaged.
damage. Replace if unserviceable.
d. Inspect bearing studs for wear and
damage. Replace studs if worn or damaged. Refer to
paragraph 3-29d. for stud welding procedure. Refer to
a. Reassembly. Refer to TM 10-3930-630-12
figure 3-11 for location of mast studs.
and reassemble the mast assembly.
e. Inspect mast bearings for wear and
b. Installation. Refer to TM 10-3930-630-12
damage. Replace unserviceable bearings.
Inspect Interlock spring for cracks and
and install the mast assembly.
damage. Replace unserviceable springs.