Mast Assembly, Cleaning, Inspection and Repair

TM 10-3930-630-34

(1) On Model ACC40-24PS100 trucks the

3-32.

Mast Assembly, Cleaning, Inspection and

interlock spring should be 6.18 inches (156.9 mm)

Repair

between hooks.

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

3-33. Mast

Assembly,

Reassembly

and

damage. Replace studs if worn or damaged. Refer to

Installation.

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.

3-22