Section II. CRANE, DRAGLINE, OR CLAMSHELL BOOM

TM-5-3810-207-20 Crane-Shovel Basic Unit Truck Mounted: 20 Ton 3/4 Cu.Yd. Gasoline Driven (Quickway Model M-200) Non-Winterized Manual
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TM 5-3810-207-20/TO 36C23-3-37-12 B-Dipper trip assembly, exploded view Figure 90-Continued. Section II. CRANE, DRAGLINE, OR CLAMSHELL BOOM 166. General The boom for crane, dragline, and clamshell operations is the same. The lower boom section is connected by two boom footpins to the revolving frame. The upper boom section carries the boom point sheave assembly. A 10-foot center section can be used to extend the length of the boom. The boom is of welded construction. 167. Crane Boom a. Removal. (1) Remove all reeving from the crane boom (TM 5-3810-207-10). (2) Remove the crane boom from the revolving frame (TM 5-3810-207-10). b. Disassembly. Disassemble the crane boom as instructed on figure 91. c. Cleaning, Inspection, and Repair. (1) Clean all parts of the crane boom with an approved cleaning solvent. (2) Inspect the crane boom for broken welds, bends, and other damage. Repair or replace the crane boom as necessary. (3) Inspect the boom point sheaves and rollers and all other parts for breaks, excessive wear, and other damage. Repair or replace all defective parts as necessary. d. Reassembly. Reassemble the crane boom as illustrated on figure 91. e. installation. (1) Install the crane boom on the revolving frame (TM 5-4810-207-10). (2) Install the reeving on the crane boom (TM 5-3810-207-10). 168. Fair-Lead a. Removal. Remove the fair-lead from the foot section of the crane boom (TM 5-3810-207-10). 132

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